Architecture and Design Structural Systems 1 — Questions and Answers
Question 1: What is the primary function of a shear wall in a building?
- To carry vertical gravity loads only
- To resist lateral forces from wind and earthquakes (Correct answer)
- To provide acoustic separation between spaces
- To support curtain wall cladding
Correct answer: To resist lateral forces from wind and earthquakes
Shear walls are vertical structural elements designed to resist lateral (horizontal) forces caused by wind and seismic activity.
Question 2: A cantilever beam is supported at:
- Both ends
- The center only
- One end only, with the other end free (Correct answer)
- Three points along its length
Correct answer: One end only, with the other end free
A cantilever is fixed at one end and free at the other, with bending moment maximum at the fixed support.
Question 3: In a simply supported beam under a uniform load, where does maximum bending moment occur?
- At both supports
- At midspan (Correct answer)
- At the quarter points
- At the top fiber
Correct answer: At midspan
For a simply supported beam with uniform loading, the maximum bending moment occurs at the center (midspan) of the beam.
Question 4: What type of structural system uses a series of triangulated members to span large distances?
- Frame structure
- Truss (Correct answer)
- Shell
- Arch
Correct answer: Truss
A truss uses a network of triangles to efficiently distribute loads through axial (tension and compression) forces in its members.
Question 5: The transfer of loads in an arch primarily occurs through:
- Bending moments
- Shear forces only
- Axial compression (Correct answer)
- Tension throughout the arch
Correct answer: Axial compression
An arch converts vertical loads into compression forces that travel along its curve to the supports (abutments).
Question 6: A post-tensioned concrete slab differs from a conventionally reinforced slab in that:
- It uses no steel reinforcement
- Tendons are stressed after the concrete has cured (Correct answer)
- It requires a thicker slab thickness
- It is used only for exterior applications
Correct answer: Tendons are stressed after the concrete has cured
In post-tensioning, high-strength steel tendons are tensioned after the concrete achieves adequate strength, compressing the slab.
Architecture and Design Structural Systems 1
What is the primary function of a shear wall in a building?