Earthquake Engineering Basics
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Questions and Answers

What is the primary function of base isolation in buildings during an earthquake?

  • To increase the mass of the building and provide stability
  • To prevent the building from collapsing entirely
  • To allow the base of the building to move independently from the ground (correct)
  • To enhance the aesthetic design of the building

Which of the following is NOT a type of energy dissipation device used in buildings?

  • Frictional dampers
  • Viscous dampers
  • Buckling-restrained braces
  • Steel braces (correct)

In which building is a unique foundation system introduced, where sliders are present in the basement level rather than the foundation?

  • C.A.S.E project, L’Aquila, Italy
  • Okumura commemorative museum, Nara, Japan (correct)
  • Angels of San Giuliano school, Italy
  • Tod’s Omotesando building, Tokyo

What is the primary purpose of using kinetic energy fuses in energy dissipation systems within buildings?

<p>To absorb and transform kinetic energy into heat (B)</p> Signup and view all the answers

Which case study is associated with a residential building that was raised to enhance seismic performance?

<p>C.A.S.E project, L’Aquila, Italy (C)</p> Signup and view all the answers

What does the 'R' in REI signify regarding fire safety in building construction?

<p>Load bearing capacity (C)</p> Signup and view all the answers

Which of the following statements is true regarding the insulation component of fire safety?

<p>Insulation should allow temperature increase of up to 180 degrees C. (C)</p> Signup and view all the answers

What is a significant criticism of the traditional fire protection design approach that aims to keep structural temperatures below 550 degrees C?

<p>It may not accurately reflect real life fire conditions. (B)</p> Signup and view all the answers

In the context of fire safety, what role do designers play if a building fails in a fire scenario?

<p>They are solely responsible for the failure. (A)</p> Signup and view all the answers

What is the primary reason for applying fire protection to keep structural temperatures below 550 degrees C?

<p>To limit the structural capacity loss to 50%. (D)</p> Signup and view all the answers

What materials were primarily used in the construction of the tea house?

<p>Adobe bricks and timber (D)</p> Signup and view all the answers

What was the total budget for Phase 1 of the Wake-Up School project?

<p>$14,000 (D)</p> Signup and view all the answers

Which aspect of the Irrawaddy Flower Garden emphasizes its unique design?

<p>The emphasis on the roof (B)</p> Signup and view all the answers

What type of architecture describes the buildings constructed by local communities using regional materials?

<p>Vernacular architecture (C)</p> Signup and view all the answers

How long did it take to build the Ah Yone Oo School?

<p>5 weeks (A)</p> Signup and view all the answers

Which school project involved plaster made from mice starch?

<p>Wake-Up School (C)</p> Signup and view all the answers

Which project had the lowest reported budget?

<p>Irrawaddy Flower Garden (B)</p> Signup and view all the answers

What kind of community contributed to the construction of the New Day Learning Center?

<p>Local workers and students from specific institutions (C)</p> Signup and view all the answers

What is the characteristic floor live load range for office buildings?

<p>2.0 - 3.0 kN/m2 (A)</p> Signup and view all the answers

Which of the following materials is considered the only truly renewable construction material?

<p>Timber (D)</p> Signup and view all the answers

What does a lower utilization ratio (UR) indicate about a structure's materials?

<p>Excess capacity in materials (A)</p> Signup and view all the answers

In which type of construction is the 2D panel method more advantageous?

<p>Small buildings (C)</p> Signup and view all the answers

What is the main advantage of using rammed earth in construction?

<p>Reduced labor input and efficient drying (C)</p> Signup and view all the answers

Which case study involved a 10-storey steel framed modular structure installed in a short time frame?

<p>CitizenM hotel, London (B)</p> Signup and view all the answers

What is the main purpose of emission reduction schemes?

<p>To minimize or prevent CO2 emissions (C)</p> Signup and view all the answers

Which material can have high carbon factors when engineered?

<p>Cross-Laminated Timber (CLT) (D)</p> Signup and view all the answers

What technique is associated with creating adobe bricks?

<p>Using molds for pressing a clay mixture (B)</p> Signup and view all the answers

Which of the following describes the modern methods of construction?

<p>Shift from projects to products (C)</p> Signup and view all the answers

What does BIM primarily associate with geometrical objects in a digital representation?

<p>Data regarding building component assemblies (D)</p> Signup and view all the answers

Which BIM dimension adds time aspects to the construction model?

<p>4D (A)</p> Signup and view all the answers

Which characteristic distinguishes BIM from CAD?

<p>BIM elements emulate real objects, whereas CAD elements are generic geometry. (C)</p> Signup and view all the answers

What is the primary role of BIM objects?

<p>To encapsulate information about physical objects in the digital realm (A)</p> Signup and view all the answers

How does the 8D BIM dimension enhance construction practices?

<p>By preventing accidents through safety features in design (C)</p> Signup and view all the answers

Which of the following best describes the function of BIM authoring tools?

<p>They organize 3D models based on objects and attributes for various project needs. (D)</p> Signup and view all the answers

What aspect does the 6D BIM dimension address?

<p>Facility management and operational costs information (D)</p> Signup and view all the answers

When comparing CAD and BIM, what is a notable difference in how both represent components?

<p>BIM treats a wall as a single object, whereas CAD divides it into separate elements. (C)</p> Signup and view all the answers

Which feature of BIM enhances collaboration among project stakeholders?

<p>Automation of data flow and synchronization of information (B)</p> Signup and view all the answers

What is the significance of parametric objects in BIM?

<p>They enable dynamic adjustments based on changes in building design. (D)</p> Signup and view all the answers

Which decision in defining a structural strategy directly impacts the embodied carbon through material choice?

<p>Material selection (D)</p> Signup and view all the answers

What is the primary purpose of lifecycle assessment in the context of building design?

<p>To quantify the carbon emissions and environmental impacts during an asset's lifetime (B)</p> Signup and view all the answers

Which structural system allows for open floor plans and is known for its flexibility in design?

<p>Hybrid systems (C)</p> Signup and view all the answers

What term refers to the greenhouse gas emissions linked with materials and construction processes throughout an asset's life?

<p>Embodied carbon (D)</p> Signup and view all the answers

Which stage of carbon assessment involves the transport of materials from the manufacturer to the site?

<p>A4 (B)</p> Signup and view all the answers

What potential carbon saving percentage is attributed to the 'Build nothing' strategy?

<p>100% (B)</p> Signup and view all the answers

What is one of the benefits of using prefabrication in construction?

<p>It typically reduces construction time. (A)</p> Signup and view all the answers

In structural design, which aspect allows for the most significant reduction in embodied carbon?

<p>Minimizing the use of demolition processes (D)</p> Signup and view all the answers

Which option describes a key aspect of 'Build efficiently' in carbon reduction strategies?

<p>Minimizing alterations during construction (B)</p> Signup and view all the answers

What is the purpose of material passports in sustainable building design?

<p>To track materials' lifecycle and potential for reuse (C)</p> Signup and view all the answers

Which of the following structural systems can often lead to wasting space in tall buildings?

<p>Skyscrapers with vanity height (B)</p> Signup and view all the answers

Which factor can significantly influence the embodied carbon of a building's floor system?

<p>The design method used (traditional or prefabricated) (C)</p> Signup and view all the answers

What carbon factor must be considered when calculating embodied carbon from construction?

<p>The weight and carbon factor of various materials (C)</p> Signup and view all the answers

What is the primary purpose of CNNs in healthcare?

<p>To detect very small nodules or tumors when diagnosing cancer (B)</p> Signup and view all the answers

Which step involves client requirements and budget considerations in the architectural design process?

<p>Design brief (A)</p> Signup and view all the answers

What is the focus of Generative Adversarial Networks (GANs) in architecture?

<p>To simplify the discretization of façade elements (C)</p> Signup and view all the answers

In the context of CNNs applied to urban spaces, what do they classify?

<p>A combination of features typical in urban settings (D)</p> Signup and view all the answers

Which of the following describes the role of diffusion models in text-to-image generation?

<p>They progressively destruct data to learn reverse processes (C)</p> Signup and view all the answers

What is the significance of rhythm in architectural design according to the classification by CNNs?

<p>It involves repetition of elements, colors, and textures (D)</p> Signup and view all the answers

What does the ArchiGAN model specifically target in apartment building design?

<p>Internal organization of floor plans (D)</p> Signup and view all the answers

What role does the FrankenGAN play in urban architecture?

<p>It considers city block typology for façade styles (A)</p> Signup and view all the answers

What aspect does the Daylight GAN focus on in architectural design?

<p>Forecasting the potential reach of natural light (D)</p> Signup and view all the answers

What is one of the main advantages of using loam in construction?

<p>Loam is reusable and virtually endless when mixed with water. (C)</p> Signup and view all the answers

Which failure type is categorized as non-structural?

<p>Detachment of built fabrics (D)</p> Signup and view all the answers

What element is crucial for the construction of rammed earth walls to prevent seepage?

<p>Capping to protect from standing water (C)</p> Signup and view all the answers

How does Martin Rauch improve rammed earth construction?

<p>By optimizing the compaction process (B)</p> Signup and view all the answers

What type of funding was provided for the temporary dormitories for Mae Tao Clinic?

<p>Funding from the embassy of Luxembourg and other international donors (B)</p> Signup and view all the answers

Which is a significant characteristic of the foundation plinth used in building construction?

<p>It protects against rain splash using a bituminous damp proof membrane. (D)</p> Signup and view all the answers

What are the two main types of modules used in modular construction?

<p>Closed sided module and open sided module (B)</p> Signup and view all the answers

What is a common problem when using loam as a construction material?

<p>Loam materials can vary greatly based on their origin. (B)</p> Signup and view all the answers

Which building types are best suited for closed sided modules?

<p>Cellular buildings like hotels and accommodations (B)</p> Signup and view all the answers

What type of finishing is recommended for contemporary rammed earth flooring to enhance durability?

<p>Bespoke wax finishing (B)</p> Signup and view all the answers

What is a primary benefit of using modular construction?

<p>Reduced build programs (C)</p> Signup and view all the answers

Which structural reinforcement is utilized to improve load distribution in rammed earth walls?

<p>Reinforced concrete ring beams (A)</p> Signup and view all the answers

What type of material was used in the Kwel Kha Baung Migrant Learning Center's design?

<p>Adobe bricks mixed with rice husks (B)</p> Signup and view all the answers

What play did Henry Ford’s production methods have on other industries?

<p>Introduced the assembly line for increased efficiency (D)</p> Signup and view all the answers

What was a unique feature of the temporary classrooms built for migrant schools in Tak?

<p>The roof was flammable but allowed for quick escape. (B)</p> Signup and view all the answers

What does prefabrication primarily aim to improve in the construction process?

<p>Quality control and efficiency (B)</p> Signup and view all the answers

Which statement about services and connections in modular construction is accurate?

<p>Most modules arrive with internal services already complete. (D)</p> Signup and view all the answers

What structural aspect is necessary to control water flow on rammed earth walls?

<p>Erosion checks made of trass-lime mortar or ceramic tiles (A)</p> Signup and view all the answers

Which material was utilized for building the temporary dormitories at Mae Tao Clinic?

<p>2nd-hand timber, bamboo, and thatch (C)</p> Signup and view all the answers

What is a typical maximum transportation height for modular units?

<p>3.6 meters (B)</p> Signup and view all the answers

What is a characteristic of the beams used in the training center at Mae Tao Clinic?

<p>Some joints were poorly located and unsupported. (A)</p> Signup and view all the answers

What is one of the key aspects of the structural design of modules?

<p>Modules are engineered to resist horizontal wind loads. (B)</p> Signup and view all the answers

What are open sided modules primarily dependent on for stability?

<p>Another form of bracing (A)</p> Signup and view all the answers

Which of the following best describes a closed sided module?

<p>Has perimeter walls on all four sides (A)</p> Signup and view all the answers

Which category best describes the efficiency benefits of prefabrication?

<p>Controlled work environments that improve quality (A)</p> Signup and view all the answers

What paradigm shift is mentioned in the context of the building industry?

<p>Multi-skilled individuals performing various tasks (C)</p> Signup and view all the answers

What is one of the consequences of improved off-site production?

<p>Improved product reliability (B)</p> Signup and view all the answers

What role do cranes play in modular construction?

<p>Used solely for loading and offloading modules (B)</p> Signup and view all the answers

What is the primary purpose of tuned mass dampers (TMDs) in building construction?

<p>To counteract dynamic responses during earthquakes and winds (D)</p> Signup and view all the answers

Which technology aims to reduce accelerations significantly by utilizing additional structural elements?

<p>Base isolation (A)</p> Signup and view all the answers

Which of the following statements about flood resilient housing technologies is incorrect?

<p>They are fully effective in preventing floods. (A)</p> Signup and view all the answers

What is one key benefit of resilient design in community planning?

<p>It ensures quicker economic recovery after adverse events. (A)</p> Signup and view all the answers

Which of the following is not a layer of fire protection in buildings?

<p>Vacuum sealing (D)</p> Signup and view all the answers

What type of damper would be expected to significantly impact the aesthetic of a building?

<p>Diagonal damper (B)</p> Signup and view all the answers

How do energy dissipation systems handle accelerations in buildings?

<p>They can reduce accelerations by 30-50%. (D)</p> Signup and view all the answers

What is the slender aspect ratio of the 432 Park Avenue building?

<p>15:1 (A)</p> Signup and view all the answers

Which type of flood resilience aims to construct buildings that completely evade water?

<p>Flood avoidance (A)</p> Signup and view all the answers

The case study involving the Windsor tower, Madrid, exemplifies which type of failure?

<p>Structural collapse due to fire (D)</p> Signup and view all the answers

Which of the following is a characteristic of rubber bearings?

<p>Do not require robust construction (D)</p> Signup and view all the answers

Which statement accurately describes the function of structural resistance during a fire?

<p>It ensures the structure remains intact to prevent collapse. (B)</p> Signup and view all the answers

What flood risk statistic applies to the global population?

<p>29% are at a 1% risk of flooding each year (A)</p> Signup and view all the answers

What is the primary difference between intensity and magnitude in the context of earthquakes?

<p>Intensity refers to the subjective strength of shaking, whereas magnitude is the objective energy released. (A)</p> Signup and view all the answers

What type of standardisation is defined specifically for a country or group of countries?

<p>National standardisation (A)</p> Signup and view all the answers

Which construction method involves the assembly of building components before they are needed on-site?

<p>Non-volumetric preassembly (B)</p> Signup and view all the answers

What typically occurs when the Centre of Mass (CoM) and the Centre of Resistance (CoR) are not aligned in a building?

<p>The building will twist around the CoR, causing potential instability. (C)</p> Signup and view all the answers

Which scenario describes a soft storey in a multistorey building?

<p>The ground floor is weaker and more flexible than the floors above it. (C)</p> Signup and view all the answers

What is the impact of building height on a structure's natural period of vibration?

<p>Taller buildings exhibit longer natural periods of vibration. (B)</p> Signup and view all the answers

Which factor is NOT considered a cause of torsional effects in buildings during seismic events?

<p>Fluctuating weather conditions (A)</p> Signup and view all the answers

What is the importance of redundancy in a load-carrying system?

<p>It allows the system to compensate for failures without overall instability. (A)</p> Signup and view all the answers

In seismic design, what is typically the effect of increased lateral stiffness in the longitudinal axis of a building?

<p>Enhanced stability against lateral loads. (B)</p> Signup and view all the answers

Which of the following disasters is categorized as geophysical?

<p>Volcanic eruptions (D)</p> Signup and view all the answers

Which case study exemplified the failure of a soft storey during an earthquake?

<p>Olive View Medical Centre, USA (C)</p> Signup and view all the answers

What does the moment magnitude scale (Mw) measure?

<p>The energy released at the source of an earthquake. (C)</p> Signup and view all the answers

What type of standardisation is defined by a supplier's specifications?

<p>Supplier standardisation (C)</p> Signup and view all the answers

What is a key characteristic of preassembled components in construction?

<p>They are constructed at a separate location before being installed. (D)</p> Signup and view all the answers

Which scenario is least likely to result in increased building vulnerability during seismic activity?

<p>Use of continuous walls for lateral load support. (C)</p> Signup and view all the answers

What is the primary goal of the NIST testing in the context of structural fire engineering?

<p>To analyze the structural response of steel during a fire (B)</p> Signup and view all the answers

What does ASET stand for in fire safety engineering?

<p>Available Safe Egress Time (D)</p> Signup and view all the answers

What happens to materials during a fire in terms of properties?

<p>Their strength is generally reduced (B)</p> Signup and view all the answers

How are convolutional neural networks (CNN) primarily utilized in artificial intelligence?

<p>For classifying and identifying images (C)</p> Signup and view all the answers

What is a significant knowledge gap identified in the context of shear connections under fire conditions?

<p>Data on structural design of shear connections (B)</p> Signup and view all the answers

What is typically the first step in performance-based design (PBD) for structural fire engineering?

<p>Defining the design fire scenario (C)</p> Signup and view all the answers

Which of the following is NOT a component of the decay period of a fire?

<p>Evacuation paths (C)</p> Signup and view all the answers

What element of AI is compared to a human brain in the study of neural networks?

<p>Neurons (B)</p> Signup and view all the answers

What is one of the safety considerations taken during the NIST testing?

<p>Covering steel beams with fireproof covering (B)</p> Signup and view all the answers

What is the relationship between structural response and fire in performance-based design?

<p>Structural response is based on design fire conditions (C)</p> Signup and view all the answers

Which fire protection principle is primarily associated with preventing fire spread?

<p>Compartmentation (C)</p> Signup and view all the answers

What kind of neural network is especially powerful in classifying images?

<p>Convolutional Neural Networks (C)</p> Signup and view all the answers

What type of structural system carries weight through external frames?

<p>Framed system (C)</p> Signup and view all the answers

Flashcards

Embodied Carbon

The total greenhouse gas (GHG) emissions associated with the materials and construction processes throughout a building's lifecycle.

Operational Carbon

The GHG emissions associated with the energy and water used to operate a building.

Upfront Carbon

The GHG emissions up to the completion of a building's construction.

Whole Life Carbon

The total carbon impact of a building, considering both embodied and operational carbon.

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Structural Embodied Carbon

The GHG emissions associated with the production and transportation of materials used in a building's structure.

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Lifecycle Assessment

A method for quantifying the carbon emissions and environmental impacts during the entire lifecycle of an asset.

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Structural Grid

A system of lines and points used to regulate the position of major structural elements, such as columns and walls.

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Moment Frame

A structural system that uses columns and beams to support loads.

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Load Bearing Walls

A structural system that uses walls to support loads.

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Shear Walls

A structural system that uses walls to resist lateral forces, such as wind or earthquakes.

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Free Plan System

A structural system that provides flexibility in floor plan layouts, often using a combination of columns, beams, and shear walls.

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Braced Frame

A structural system that uses diagonal bracing to resist lateral forces.

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Cantilever

A structural element supported at one end, extending horizontally.

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Design for Deconstruction

The process of designing and building structures that can be easily disassembled and reused.

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Material Passport

A document that tracks the lifecycle of a material, including its embodied carbon and potential for reuse.

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Design Loads

The amount of weight a building is designed to support, including occupants, furniture, and temporary loads.

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Utilization Ratio (UR)

A measure of how much of a material's performance capability is being used. A value closer to 1 indicates efficient use of the material.

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Modern Methods of Construction (MMC)

A construction method that involves building components off-site in a factory and then assembling them on-site. This can reduce construction time and waste.

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2D Panels

Pre-manufactured panels used to create walls and floors in buildings. They are assembled on-site like a giant jigsaw puzzle.

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3D Modules

Pre-manufactured modules that are fully fitted out and ready to be installed on-site. They can be entire rooms or parts of rooms.

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Thermal Mass

A construction material that can store and release heat, helping to regulate indoor temperatures.

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Earth or Loam

A construction material made from a mixture of clay, sand, and silt. It is a sustainable and natural material that can be used to create walls and floors.

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Mud Bricks (Adobe)

A type of earth building where a mixture of clay, water, sand, and straw is formed into blocks and dried in the sun.

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Rammed Earth

A technique where a mixture of earth and gravel is compacted into formwork to create walls.

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Wattle and Daub

A traditional building method where a lattice of woven branches or twigs is plastered with a mixture of mud, clay, sand, and straw.

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Vernacular Architecture

A style of architecture that utilizes traditional materials and methods, often built by local communities using resources from the surrounding area.

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Tea House Design

A tea shop built with adobe walls, a concrete foundation, and wooden beams for support, featuring a 60 square meter tea house.

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Wake-up School, Nakivale, Uganda

A school building constructed in stages with adobe bricks, a wooden panel facade, and a unique plaster made from rice starch. Built in a refugee settlement in Uganda.

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Ah Yone Oo School, Mae Sot

A winding-walled school building in Mae Sot, Thailand, featuring adobe bricks, plastered walls, and wooden beams supporting the roof.

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New Day Learning Center, Mae Sot

A learning center with four classrooms made from adobe brick, built around trees and completed in five weeks.

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Irrawaddy Flower Garden, Mae Sot

A flower garden in Mae Sot, Thailand, designed with a focus on the roof, utilizing adobe walls, a steel roof structure, and a niche for a whiteboard.

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Loam

A type of building material made from earth mixed with water and sometimes other materials, like straw or sand. It's often used in hot climates because it can help regulate temperature.

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Compaction

The process of pressing earth down into a form to make it stronger and more stable. It's often used in rammed earth construction.

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Bespoke Wax Finishing

A type of finish used on rammed earth floors that protects them from wear and tear and gives them a smooth surface. It can be made from various materials like wax or oil.

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Capping

A horizontal structural element above the top of walls that helps distribute weight evenly. It's often used in rammed earth construction to protect the walls from water damage.

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Trass-Lime Mortar

A type of mortar made from a combination of volcanic ash, lime, and water. It's often used in rammed earth construction because it's strong and water resistant.

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Reinforced Concrete Ring Beam

A type of beam made from reinforced concrete that helps distribute weight from the roof to the walls.

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Skirting

A strip of material that runs along the base of a wall to protect it from water damage. It's often made of a water-resistant material like concrete or ceramic.

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Erosion Checks

A method of diverting water away from a building to prevent erosion. They are often made of ceramic tiles or trass-lime mortar.

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Temporary Dormitories

A type of temporary housing made from wood, bamboo, and thatch. It is often used in areas where housing is needed quickly.

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Adobe Bricks

A type of building material made from earth that is mixed with water and then molded into bricks. It is often used in sustainable building because it is a readily available resource.

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Simple Architecture

A type of construction that uses locally available materials and traditional building techniques. It is often used in developing countries where resources are limited.

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Social Architecture

Type of architecture focusing on community needs and sustainable building practices. It's often used in areas where there is a need for affordable and eco-friendly housing.

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Frame with a Roof

A type of construction where frames are erected and then covered with a roof, without any walls. Often used for temporary classrooms due to its low cost and quick construction.

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Flammable Roof

A type of construction with a roof that is not connected to the ground, allowing for easy escape in case of fire. Often used in temporary structures.

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What is BIM?

A digital representation of a building that combines geometric information with data about its components, materials, and other attributes. Changes to the model update associated information automatically.

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What is 4D BIM?

Using BIM to plan and schedule construction activities over time. It allows visualization of construction sequences and helps manage deadlines.

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What is 5D BIM?

A BIM model that includes information about the cost of different components and materials, allowing for accurate cost estimations.

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Explain 8D BIM.

It focuses on incorporating safety features into the design to prevent accidents during construction and operation. It allows comprehensive risk assessments and the identification of potential hazards.

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What is a BIM Object?

A 2D or 3D digital model of an object that describes its appearance (visualisation) and behaviour (functionality) in the digital world. Each BIM object contains data about its material, type, and properties.

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What are BIM Authoring Tools?

A software application that allows users to create and manage BIM models. It facilitates design, analysis, and documentation processes, also generating scheduling, cost, and sustainability data.

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What is the main difference between a CAD model and a BIM model?

In CAD, geometric elements are represented as simple lines and shapes, while in BIM they are represented as intelligent objects with specific properties and behavior. This allows for more detailed information and data-driven decision making within BIM.

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How do information sources differ between CAD and BIM?

While CAD relies on separate information sources for elements, BIM integrates data directly within the model. This creates a centralized and organized information hub for a project, facilitating efficient data management and collaboration.

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How does BIM promote collaboration?

BIM promotes collaboration by facilitating shared access to information. Designers, builders, and engineers can simultaneously work on the model, ensuring everyone is working with the most up-to-date information. This reduces errors and improves communication throughout the project lifecycle.

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How does BIM automate data flow?

BIM streamlines data flow by automating processes like cost estimations, material ordering, and scheduling. This reduces manual tasks and ensures greater accuracy and efficiency throughout the project.

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Base Isolation

A system that separates the building's base from the ground, allowing the base to move independently during an earthquake. It uses flexible components like sliders or rubber bearings to absorb the seismic energy.

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Energy Dissipation

A technique that controls a building's lateral drift (sideways movement) during an earthquake by using devices that absorb energy and dissipate it as heat.

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Viscous Dampers

Devices used in energy dissipation systems to absorb and dissipate the energy from seismic loads. They are designed to deform under stress, converting kinetic energy into heat.

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C.A.S.E. Project

A project in L'Aquila, Italy, where a residential building was raised on a base isolation system to protect it from earthquakes.

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Adding Isolators to Existing Buildings

A technique where columns are removed and replaced with isolators, creating a new foundation system for a building.

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Closed-sided module

A type of modular construction where all four sides of the module are enclosed by walls. These walls support the ceiling and can increase the module's structural stiffness. Closed-sided modules can be assembled like closed boxes, forming one or more rooms.

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Open-sided module

Modular construction units that have one or more open external walls, allowing for flexibility in creating larger rooms. They rely on other structural elements for stability and support.

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Prefabrication

A pre-planned and managed process of building a modular unit in a factory or controlled off-site location.

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Modular Construction

The practice of creating building components, such as walls, floors, and roofs, as individual units that can be assembled on-site. This approach offers advantages like faster construction timelines and controlled quality.

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Transportation Limits

The total limit on the size and weight of a module that can be transported safely and legally by standard means.

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Cellular Buildings

Structures designed for efficient use with closed-sided modules, often found in hospitality projects like hotels or other accommodation buildings.

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Large-spaced Buildings

A building with a large open floor plan, perfect for open-sided modules. Examples include schools, offices, and retail spaces.

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Cladding and Roofing

The outer covering of a building, including walls and roofing. In modular construction, cladding and roofing can be installed after the volumetric structure is in place.

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Circulation

Vertical or horizontal elements within a building that facilitate movement between spaces. These can be internal corridors, external access ways, balconies, staircases, and lifts.

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Modular Plant Rooms

Specialized rooms within a modular building that house mechanical systems, such as HVAC units or plumbing installations. They are often pre-equipped and tested in the factory.

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Technical Performance

The use of large-scale testing and development to verify the performance and quality of modular components before they are used in actual buildings. Optimization of cost-effectiveness is also a focus.

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Structural Design in Modules

The process of designing and building modules to resist horizontal forces caused by wind or earthquakes. These forces may be transferred to building's foundations, core, or other structural elements.

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Site Raised Benefits

The benefits of modular construction that significantly reduce the need for on-site personnel, vehicle movements, construction waste, and damage during the building process.

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Modular Construction and Build Programmes

The ability of modular construction to reduce the overall construction duration, allowing projects to be completed quicker than traditional methods.

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Pre-production Prototyping

The use of prototypes to test and refine the design and details of modular units before full-scale production. This helps to improve the quality and efficiency of the modular system.

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Fire Resistance (R)

The ability of a construction element to withstand fire for a specified time without losing structural stability. This means it won't collapse under the load, even during a fire.

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Fire Integrity (E)

The ability of a construction element to prevent the spread of fire. This means flames won't easily pass through it, protecting people and property.

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Fire Insulation (I)

The ability of a construction element to limit the heat transfer during a fire. This means it won't get too hot and cause damage.

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Fire Test (REI)

A fire resistance test that measures how long a building element can withstand fire exposure before failing. It's a standard method used to assess safety.

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Standard Fire Design

A design approach that aims to keep structural temperatures below 550 degrees Celsius during a fire, reducing steel strength loss. This is often achieved by applying fire protection materials.

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Earthquake Magnitude

A measure of the energy released at the source of an earthquake, calculated objectively by a seismograph.

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Earthquake Intensity

Describes how strongly an earthquake is felt at a particular location, based on its effects on people and structures.

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Natural Period of Vibration (NPoV)

The time it takes for a building to complete one full cycle of swinging back and forth when disturbed.

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Inertia Forces

Forces acting on a building during an earthquake, due to its resistance to moving with the ground.

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Center of Mass (CoM)

The central point where the weight of a building is distributed across each floor.

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Center of Resistance (CoR)

The point around which a building will pivot when subjected to lateral forces.

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Soft Storey

A structural weakness in a building where one storey is significantly more flexible than those above it.

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Redundancy in Structures

A load-carrying system that is designed to withstand lateral forces even if some elements fail.

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Structural Dampers

These are devices used to reduce the sway of tall buildings during earthquakes or strong winds.

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Non-Volumetric Preassembly

A type of preassembly where components are constructed off-site but do not enclose usable space, like panels or bridge sections.

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Diagonal Dampers

A type of structural damper that uses diagonal bracing to absorb energy and reduce sway.

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Preassembled Components and Sub-Assemblies

A type of preassembly where components are constructed off-site and enclose usable space, like windows or doors.

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Tuned Mass Dampers (TMDs)

A type of structural damper that uses a heavy weight suspended from the roof to counteract building movement.

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Standardization

The organized use of components, methods, and processes with regularity and a history of success.

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Generic Standardization

A type of standardization where elements or processes are universally recognized as standard due to their nature.

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Client Standardization

A type of standardization where elements or processes are specifically defined for a particular client's needs.

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Resilient Design

A structural design approach that reduces the impact of earthquakes and other natural disasters.

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Torsional Effects

A situation during an earthquake where a building twists around a point other than its center of mass, leading to potential instability.

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Flood Resistance

The ability of a building to resist the entry of floodwater and prevent damage to its interior.

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Flood Resilience

The ability of a building to withstand floodwater and limit damage to internal fixtures and fittings.

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Flood Avoidance

Constructing a building in a way that avoids floodwater, allowing uninterrupted flow.

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Silk Roads

A network of ancient roads that connected Asia and Europe, facilitating the exchange of goods, ideas, and culture.

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Caravanserais

Roadside inns or rest stops along the Silk Roads, providing lodging and services for travelers.

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VR Reconstruction

The use of virtual reality to create immersive experiences of historical sites and buildings.

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AI Driven Soundscape

The use of AI to generate realistic soundscapes for immersive historical reconstructions.

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Layers of Fire Protection

A series of measures implemented to mitigate fire risks in buildings, addressing different phases of a fire event.

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Structural Resistance

The ability of a building structure to withstand a fire and prevent collapse.

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Structure Resistance Failure

The failure of a building's structure during a fire, leading to collapse.

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Convolutional Neural Network (CNN)

A type of artificial intelligence (AI) that uses deep learning algorithms to analyze images. It can identify patterns, classify objects, and even create images.

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Transfer Learning

A technique where a pre-trained CNN is used for a different task, saving time and resources. It is like adapting a skilled worker to a new job.

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Generative Adversarial Networks (GANs)

A type of AI that produces new content, like images or text, based on its training data. Imagine an artist mimicking various styles to create new works.

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Diffusion Models

A type of generative model that sequentially adds noise to an image to understand how to reverse the process, creating new images from random noise.

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Text-to-Image Diffusion Models

A specific kind of diffusion model that uses text descriptions as input to generate realistic images based on the given words.

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Building Façade Classification

The process of understanding and classifying visual design principles in building facades, such as emphasis, balance, and rhythm.

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GANs for Building Facades

A technique for generating realistic building facades using GANs by creating a network of simple building elements like windows, doors, and cornices.

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FrankenGAN

A generative model that creates building masses, considering the context of the surrounding neighborhood and sharing similar characteristics.

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ArchiGAN

A generative model that creates realistic and detailed building interiors, including furniture layouts.

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Daylight GAN

A generative model that forecasts the amount of natural light entering a building based on its floor plan and facade openings.

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Fire Resistance

The ability of a material to withstand fire and maintain its structural integrity.

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Time to Flashover

The time it takes for a fire to develop to a point where it becomes uncontrollable.

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Performance Based Design (PBD)

A method for designing structures to withstand a specific fire scenario.

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Design Fire

A standardized fire scenario used in design calculations, representing how a fire might behave in a real building.

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Required Safe Egress Time (RSET)

The time it takes for a person to safely evacuate a building from the time a fire starts.

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Available Safe Egress Time (ASET)

The time available for occupants to safely evacuate a building before conditions become untenable.

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Turing Test

A test to determine if a machine can think like a human, conducted by asking questions and analyzing the responses.

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Artificial Neural Network (ANN)

A type of artificial intelligence that mimics the structure and function of the human brain.

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Machine Learning

The process of a machine learning by adjusting its parameters based on data input.

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Deep Neural Network

A type of artificial neural network with multiple hidden layers, capable of learning complex patterns and making predictions.

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Image Matrix

A 2D grid of pixels that represents a digital image.

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Pixel Intensity

The grayscale value of a pixel, ranging from 0 (black) to 255 (white).

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Three Channel Matrix

A collection of three matrices, representing the red, green, and blue channels of a color image.

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Feature Extraction

The process of analyzing and extracting features from data, such as images, to identify patterns.

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Study Notes

Structural Embodied Carbon Assessment and Reporting

  • Structural Strategy Decisions (Impacting Embodied Carbon): Grids and layouts, structural system, material selection, ground conditions, floor/roof systems, and on-site/off-site construction.

Grids and Structural Layouts

  • Larger spans necessitate deeper structural systems for support.
  • In design, grids are used for organizing and regulating structural element placement (columns, walls).

Material Selection

  • Material selection considerations include beam depth and connection types (pinned or fixed).
  • Pinned connections are often simpler and less expensive than fixed ones.

Structural Systems

  • Common systems include moment frames/load-bearing walls, shear walls/load-bearing walls, free plan/hybrid systems, and braced frames.
  • Cantilevers, like inverted beams, Vierendeel trusses, and cantilevered trusses, are supported by one or more cores that transmit load to the foundation.

Floor and Roof Systems

  • Roof structures offer diverse solutions due to lower loads, including conventional beams (steel, timber, concrete), trusses (timber/steel hybrids), portal frames (steel, timber, concrete), cable-stayed roofs, arched roofs, concrete shell roofs, timber grid shell roofs, membrane structures, and tensegrity structures.

Ground Conditions

  • Foundations and retaining walls are essential considerations.

On-Site/Off-Site Construction

  • Prefabrication can simplify construction and reduce waste.

Measuring Embodied Carbon (EC)

  • Lifecycle Assessment (LCA): Quantifies emissions and environmental impacts throughout an asset's lifetime.
  • Embodied Carbon (EC): Greenhouse gas emissions associated with materials and construction processes. Considers product, construction, use, and end-of-life impacts.
  • Operational Carbon (OC): GHG emissions from energy and water use during asset operation.
  • Upfront Carbon: GHG emissions up to practical completion (material production and construction).
  • Whole Life Carbon: EC + OC.
  • Calculations: Summing material quantities (kg) multiplied by their carbon factors (kgCO2e/kg).
  • Reporting: Using Environmental Product Declarations (EPDs) with 5-year validity and independent verification. Carbon factor databases are available.
  • Stages A1-A5: Raw material supply, material transport, manufacturing, transport to site, and construction/installation, respectively. Construction waste and site activities contribute to carbon emission. Prefabrication minimizes waste.
  • Normalization: Calculating EC per unit area (kgCO2e/m²) for buildings, refurbishments, and extensions.

SCORS Rating System

  • Rates superstructure and substructure emissions.
  • Aim is to move the average rating from the "red" zone to "C" using strategies like reuse/refurbishment.

LISA Carbon Calculator

  • A tool for embodied carbon calculation.

Net-Zero Carbon Strategies

  • Hierarchy: Build nothing (reuse), build less (reuse/repurpose), build clever (minimize EC), build efficiently (avoid over-ordering), specify low carbon, and offset remaining emissions.
  • Build Nothing: Maximize reuse; design for deconstruction to maximize reuse/repurposing.
  • Build Less: Avoid waste, use existing structures, and reduce unnecessary building height ("vanity height").
  • Build Clever: Optimize reuse of existing building elements, select the most efficient materials, and minimize structural complexity.

Earth Architecture

  • Techniques: Mud bricks (adobe), rammed earth, and wattle and daub.
  • Advantages: Environmentally friendly, cost effective, and suitable for DIY construction.
  • Disadvantages: Material heterogeneity, shrinkage during drying, and susceptibility to water damage.

BIM (Building Information Modeling)

  • Relates data to geometrical objects (3D models).
  • Includes detailed building information (design, construction, cost, time, maintenance).
  • Dimensions: 3D (visualization), 4D (scheduling), 5D (cost), 6D (facility management), 7D (energy), 8D (safety), and nD (any info).
  • From CAD to BIM: Shift from generic geometry to object-based modeling with information.
  • BIM Objects: Intelligent objects with visualization, metadata, and behavioral data, classified into component and material objects.
  • BIM Authoring Tools: Software for creating, managing, and sharing BIM models.

Prefabrication and Modular Construction

  • Modular Construction: Dividing a building into prefabricated modules for factory production and on-site assembly.
  • Module Types: Closed-sided and open-sided modules, each suitable for different building types. Modules have steel, concrete, or hybrid structures.
  • Transportation: Considerations for weight, height, and size limit module dimensions.
  • Building Forms: Cellular/large-spaced building applications. Modules can be configured into various building geometries.
  • Benefits: Reduced construction time, improved quality control, cost-effectiveness, and reduced waste.

Technologies for Disaster Resilience

  • Natural Disasters: Meteorological (hurricanes, floods) and geophysical (earthquakes, tsunamis).
  • Earthquake Design: Intensity vs. magnitude; building codes based on infrequent but high-intensity events.
  • Seismic Hazard: Structural response to inertial forces, natural period of vibration (NPoV), and load-resisting capacity.
  • Passive Technologies: Base isolation, energy dissipation, and tuned mass dampers to mitigate building damage during natural events.
  • Flood Resilience: Flood resistance, resilience, and avoidance strategies for flood-prone areas.

Immersive Heritage

  • Silk Roads: Ancient trade routes connecting Asia and Europe.
  • Caravanserais: Milestones along the Silk Roads (hotels, rest stops).
  • VR/AI: Used for immersive historical reconstructions, auditory experience.

Structural Fire Engineering

  • Layers of Protection: Prevention, detection, evacuation, compartmentation, suppression, and structural resistance.
  • Failure Mechanisms: Structural elements failing under fire exposure (e.g., steel melting or concrete cracking).
  • Standards: Prescriptive design (Eurocode 3) may be insufficient to account for complex fire behaviors.
  • Performance-Based Design (PBD): More realistic approach, considering full-scale fire scenario, heat transfer, and structural response.
  • Material Properties: How material properties change during fire (strength, deflection, thermal expansion/contraction).
  • BIM application: Modeling evacuation routes and structural compliance.

Architecture in the Age of AI

  • AI's Role: Tools like convolutional neural networks (CNNs) help architectural design through façade classification, house style identification, and generating massing data.
  • Generative Adversarial Networks (GANs): Assist in generating building facades, massing, interior space organization and visualizations from texts, and annual daylight forecasts.
  • Applications: AI supports various design aspects, from facade styles to building massing and internal layout generation, leading to more efficient and innovative design solutions.

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Description

Test your knowledge on the fundamental concepts of earthquake engineering, including base isolation and energy dissipation devices. This quiz covers critical aspects of how buildings can be designed to withstand seismic activity.

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