BArch Bachelor of Architecture Structural Systems in Architecture 1 — Questions and Answers
Question 1: Which structural system uses a series of arches to transfer loads laterally to buttresses?
- Flying buttress system (Correct answer)
- Post-and-lintel system
- Space frame system
- Tensegrity system
Correct answer: Flying buttress system
Flying buttresses transfer the lateral thrust of vaults and arches to outer piers, a technique perfected in Gothic cathedrals.
Question 2: In a simply supported beam, the maximum bending moment occurs at which location?
- At the supports
- At the midspan (Correct answer)
- At the quarter points
- At the load application point
Correct answer: At the midspan
For a uniformly distributed load on a simply supported beam, the maximum bending moment occurs at the midspan.
Question 3: A space frame structure primarily resists loads through which mechanism?
- Bending of members
- Axial forces in a three-dimensional network (Correct answer)
- Cantilever action
- Friction at connections
Correct answer: Axial forces in a three-dimensional network
Space frames distribute loads through axial tension and compression forces across a three-dimensional triangulated network of members.
Question 4: Which term describes the tendency of a tall building to sway due to wind loads?
- Torsion
- Lateral drift (Correct answer)
- Differential settlement
- Punching shear
Correct answer: Lateral drift
Lateral drift refers to the horizontal displacement of a building under lateral loads such as wind or seismic forces.
Question 5: What is the primary advantage of a post-tensioned concrete slab over a conventionally reinforced slab?
- Lower material cost
- Reduced slab thickness and longer spans (Correct answer)
- Faster curing time
- Better fire resistance
Correct answer: Reduced slab thickness and longer spans
Post-tensioning applies compressive stress to the slab, counteracting tensile stresses and enabling thinner slabs with longer spans.
Question 6: In structural engineering, what does the term 'dead load' refer to?
- Loads from occupants and furniture
- Permanent static weight of the structure itself (Correct answer)
- Wind and seismic forces
- Impact loads from moving equipment
Correct answer: Permanent static weight of the structure itself
Dead loads are the permanent, static weights of the building's own structure and fixed components such as roofing and cladding.
BArch Bachelor of Architecture Structural Systems in Architecture 1
Which structural system uses a series of arches to transfer loads laterally to buttresses?