Sistemas Estructurales II - Grandes Luces

<p>NIO + NI × cos(ang) = 0 (D)</p> Signup and view all the answers

<p>b = número de nudos - número de miembros (D)</p> Signup and view all the answers

<p>Cáscaras y placas (B), Cables y arcos (C)</p> Signup and view all the answers

<p>F = m.g (B)</p> Signup and view all the answers

<p>b = 2n - 3 (A)</p> Signup and view all the answers

<p>P = F / S (D)</p> Signup and view all the answers

<p>Resistencia lateral y resistencia de punta (D)</p> Signup and view all the answers

<p>1.5 kg/cm² (B)</p> Signup and view all the answers

<p>I = a / 12 (C)</p> Signup and view all the answers

<p>Reacción horizontal en los apoyos (B)</p> Signup and view all the answers

<p>1900 kg/cm² (B)</p> Signup and view all the answers

<p>Aumenta la fragilidad (A)</p> Signup and view all the answers

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

<p>Después de 2 horas (A)</p> Signup and view all the answers

<p>El asentamiento del cono (D)</p> Signup and view all the answers

<p>Se proporciona resistencia adicional (D)</p> Signup and view all the answers

<p>&lt;35°C (C)</p> Signup and view all the answers

<p>Mejorar la resistencia (C)</p> Signup and view all the answers

<p>Trabajan a tracción pura (B), Son más económicos que los arcos (D)</p> Signup and view all the answers

<p>Las armaduras trabajan a tracción y el hormigón a compresión (C)</p> Signup and view all the answers

<p>La medida necesaria para evitar el pandeo (A)</p> Signup and view all the answers

<p>Aumenta a menor flecha (B)</p> Signup and view all the answers

<p>Trabaja a compresión pura (C)</p> Signup and view all the answers

<p>Se encuentra en su condición óptima (D)</p> Signup and view all the answers

<p>No varía para soportar las cargas (A)</p> Signup and view all the answers

<p>Trabajan a compresión pura (C)</p> Signup and view all the answers

Forces are applied at the joints or connection points of a structure.

Equations (ΣFx = 0, ΣFy = 0, ΣM = 0) used to find support reactions in a structure.

A way to calculate forces in the members of a truss structure by analyzing the forces at each joint.

A type of structure made up of interconnected straight members, usually used in bridges and roofs.

External forces exerted by the supports to keep a structure in equilibrium when loads are applied.

A vector representing the forces acting on an active structural element (e.g., cables, arches).

A state of balance where the sum of forces and moments on an object equals zero; stable, unstable or indifferent based on the response when slightly disturbed.

Describing a load by its geometry, such as slope, angles, or positions.

The measure of force distributed over an area; the maximum pressure the soil can withstand without failure.

Foundation type; distributes loads over a larger area, resisting sinking and maintaining a uniform pressure on the soil.

A measure of an object or structures resistance to angular acceleration.

Truss structures categorized as isostatic (balanced), hyperstatic (over-constrained) or hypostatic (under-constrained) based on the number of bars and nodes.

Structural components of a truss, including the main elements: rafters/purlins, posts, diagonals, braces, and ties.

A trigonometric calculation used in structural analysis; a specific angle in a given system.

Calculated value in a structural analysis

Concrete system where tendons are stressed before the concrete hardens.

Concrete system where tendons are tensioned after the concrete hardens.

Structural elements that operate primarily under tensile stress.

Structural elements that primarily operate under compressive stress.

The ideal shape for a cable to hold a specific load distribution.

Shape that a cable would take with its own weight being the only load.

Steel cables with high tensile strength, commonly used as reinforcement in pre- and post-tensioned structures

Compressive strength of concrete in pre- and post-tensioning (Ho). Ranges from 180-200 kg/cm² up to 500 kg/cm²

A specific ratio of cement, sand, and crushed stone (aggregate) for concrete preparation.

A test used to measure the consistency (workability) of concrete by determining the slump.

The process of maintaining appropriate moisture and temperature conditions to allow concrete to harden fully (set).

Concrete structure with built-in tensioned steel cables for increased strength and durability.

The method of applying tension to steel cables before concrete curing.

Recommended temperature for concrete work to ensure optimal curing and strength development.