Lecture 1-BIM PDF

Arch. Taif Hasan What do you think when you hear the term Digital Media? New quiz copy (2) - Mentimeter  Building information modeling (BIM) BIM stands for Building Information Modeling. The main added value of BIM is the way in which it g...

Arch. Taif Hasan What do you think when you hear the term Digital Media? New quiz copy (2) - Mentimeter  Building information modeling (BIM) BIM stands for Building Information Modeling. The main added value of BIM is the way in which it groups information from all of the stakeholders involved, including data such as geometry, environment, geography, materials, spatial relationships, costs, etc. This methodology makes building and infrastructure planning, design, construction, and management much more efficient, and it has become a central concept in the digital transformation of the construction industry, as well as making a real impact in terms of sustainability. Although it was first introduced to the market in 1992, BIM started gaining traction a little over 10 years later. Nowadays, it has become an essential part of the sector. With some governments enforcing the use of BIM in new projects and a growing understanding of its benefits to the AEC industry, the BIM global market is expected to grow from the 4.5 billion USD reported in 2020 to 21.15 billion USD by 2032. How does BIM work? Building Information Modeling integrates smart insights into tangible aspects of a building. Not to be confused with Computer Aided Designs (or CAD), whose purpose is focused solely on drafting and design, BIM uses CAD as a tool for bringing broad-scoped information about a building together. Simply put, BIM makes CAD drawings come alive; it makes them smarter, more dynamic, and provides much more information about the many systems that can be integrated into a building. When implemented effectively, it can also influence changes in the CAD. Moreover, it also helps to digitize many aspects of the building’s lifecycle, going further beyond only the design phase. In times when smart buildings are also becoming all the rage, it’s crucial that facility managers also become smarter in their ways of handling them. This methodology can provide a complete context for buildings and the systems that regulate them, making the “I” in BIM the epitome of information-driven decision-making. History of BIM The idea of BIM was conceptualized in the 70s and was initially called the Building Description System (BDS)(Eastman et al., 1974). It wasn’t until 10 years later, though, when the terms building information modeling and building information model (including the acronym BIM) became popularly used. It was in 2002 when Autodesk published a paper entitled “Building Information Modelling” and various software developers and vendors got involved in the field and the term was standardized to mean as the common name for digital representation of the building process. 2D computer Hand Drafting aided drafting 3D CAD BIM Ex: pencil & CAD Ex: AutoCAD Ex: Revit, Tekla paper Ex: AutoCAD Function of BIM ▪ Provides a way to work concurrently on most aspects of building life cycle process ▪ Provides a way to change traditional architectural phases and data sharing ▪ Integrates actual construction pieces and parts in the modeling process ▪ Can be used as a tool to estimate and complete construction cost forecasting ▪ Used to monitor actual building performance data ▪ Can be used to collect data on warranty, aging, defects, and installation time ▪ Determines whether a temporary construction set up is needed ▪ Can be used to sequencing planning or determining how the phases of a project should be scheduled. ▪ Can detect /avoid construction & design issues early to prevent change orders & unforeseen conditions ▪ BIM process and communication greatly enhanced by reporting, scheduling, and submittals. BIM Dimensions BIM dimension refers to the different uses for a BIM process. Each dimension adds a layer of thought to the process for a particular use. These dimensions enrich the BIM data set and make it more useful to various stakeholders throughout an asset’s lifecycle. BIM is all about creating and managing the information of built or natural assets. Just like an actual building has multiple layers, components, and dimensions, a BIM model also has multiple layers of information which can be defined by a different BIM dimension, whether it be the components that we can physically see (e.g., walls, floors, etc.) or information like schedule, cost, and operations.  7D FACILITY 5D ESTMATING 6D 3D SHAPE 4D SCHDULING MANAGEMENT & COST SUSTANBILITY APPLICATIONS Safety & logistics Project Phasing Real time Conceptual Life cycle BIM Models. simulations. conceptual energy analysis. strategies. modeling and cost planning. Lean Scheduling Animations, Last Planner. Detailed energy rendering, BIM as-builts. Just In Time (JIT) analysis. walkthroughs. equipment deliveries. Quantity extraction to Visual Validation support detailed BIM maintenance BIM driven Sustainable for Payment cost estimates. plan and technical prefabrication. element tracking. Approval. support. Universally accepted BIM dimensions While many BIM experts agree with the shift to more plain language when it comes to BIM, there is still generally worldwide consensus on 3D, 4D, and 5D BIM. 3D BIM: Shape 3D is the most common use of BIM, and it represents the basic structure of a project. Evolved version of the 2D drawing; while drawings consist of an X and Y-axis, 3D BIM adds another dimension: the Z-axis. 3D BIM lets you create and visualize the project’s design. It includes the geometry, such as beams, walls, floors, mechanical equipment, and other built elements, as well as their physical properties like materials and finishes. 4D BIM: Time, scheduling, and logistics 4D BIM adds the dimension of time to the 3D BIM model. It overlays scheduling information into the model, allowing users to visualize the construction sequence and plan aspects of the project more effectively. When the project timeline is linked to the model, you can envision how the building will be constructed and evolve. You'll be able to see when different components will come together, which reduces risk to your projects. On the project management side, 4D BIM is also practical for project managers because it makes it easy to plan and manage the construction schedule more effectively. Viewing the construction timeline in the context of the 3D model lets project managers spot scheduling issues and overlaps. 5D BIM: Estimating and cost data 5D BIM incorporates estimating and cost data into the model. With 5D BIM, you can also clearly view cost- related information. 5D BIM is a powerful tool for budget management and cost analysis. It enables teams to add cost data into almost every aspect of the model to better understand how much a project will cost. With 5D BIM, you can automatically calculate costs based on the materials, labor, and other resources associated with the elements of the 3D model. This saves time, optimizes resource allocation, and helps reduce cost overruns. Enhanced Communication and Teamwork BIM framework ensures better teamwork, management, and sectioning sets of drawings that are usually impossible to understand through paper drawings. BIM allows uninterrupted interfacing with all the project areas. BIM framework such as the BIM 360 framework facilitates better project work distribution among the members involved and project planning management that makes it quite easier for the project stakeholders to understand. Cost Assessment BIM provides the construction cost estimates way before the beginning of the construction phase. Tools like BIM 360 Docs can be used to estimate costs that are related to materials and their shipping, shipping of prefabricated or modular pieces, and labor. BIM modeling can help in choosing more cost-effective materials, streamline the workflow of the construction, buy the materials at their lowest market price and reduce human errors which lead to delays in the project. Monitoring Changes Construction project undergoes several modifications before the construction is carried out on the field. BIM makes it easier to monitor these modifications to return to an earlier design of the model if the new one is erroneous. This feature helps the project designers save their precious time as compared to the 2D drawings since there is no requirement of redrawing the designs again. Visualization of the Project BIM offers tools that help in proper planning and clear visualization before the initiation of the construction work. 3D visualization and the simulation of the surface area help the client to get the post-construction visualization of the infrastructure thus facilitating easy modifications prior to the construction stage. Effective Coordination BIM provides easy and effective coordination among the various teams involved. It detects all the internal and external clashes and conflicts between any field. Software like Autodesk BIM 360 glue can be employed to prevent clashes through automated clash detection. Clash detection limits the number of repairs or reconstruction required. Lowered Risks and Expenses BIM helps a lot in lowering expenses. Good coordination with the contractors can reduce the cost of insurance, lower the number of generic versions and reduce the risk of claims. Reviewing the project at its preconstruction stage can reduce the number of unused material wastes. Most of the firms employ construction technology and BIM to reduce the overall risks and expenses. Lowered Risks and Expenses BIM helps a lot in lowering expenses. Good coordination with the contractors can reduce the cost of insurance, lower the number of generic versions and reduce the risk of claims. Reviewing the project at its preconstruction stage can reduce the number of unused material wastes. Most of the firms employ construction technology and BIM to reduce the overall risks and expenses. Sequence and Schedule BIM technology help saves a lot of time by reducing the lifespan of the project cycle and avoiding any delays in the scheduling of the construction. It enables precise planning and improves collaboration which increases the chance of the completion of the project within the stipulated time. Share about programs with BIM features New quiz copy (2) - Mentimeter Summary Building information modeling is the process of creating and managing 3D building data during its development. BIM is a complex multiphase process that gathers input from team members to model the components and tools that will be used during the construction process to create a unique perspective of the building process. Advantages Disadvantages Data availability. Data security. Data accessibility. Cyber security. Cost effectiveness. Network dependency. Massive storage. Initial set-up cost. backup capabilities. Control concerns. Easy to use. Physical data storage issues. Interoperable. Privacy concerns. High computing capabilities. Ownership concerns. Positive environmental effects. Any questions?