Structural Systems and Technology Flashcards
6 cards from real ARE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Structural Systems and Technology flashcards as text
Which structural system uses triangulated members where forces act only in tension or compression?
Answer: Truss
A truss is composed of triangulated members where internal forces are limited to axial tension or compression.
What is the primary purpose of a grade beam in a foundation system?
Answer: To connect spread footings and distribute loads along the perimeter
A grade beam connects individual footings and spans between them to distribute structural loads along the foundation perimeter.
In a post-tensioned concrete slab, the tendons are stressed:
Answer: After the concrete has hardened
In post-tensioning, high-strength steel tendons are tensioned after the concrete has cured to a specified strength.
Which load type acts horizontally on a structure due to soil pressure?
Answer: Lateral earth pressure
Lateral earth pressure is a horizontal load exerted by retained soil against basement walls or retaining structures.
What is the deflection limit for a floor beam supporting a plaster ceiling under live load according to common practice?
Answer: L/360
L/360 is the standard deflection limit for floor members supporting plaster or brittle finishes to prevent cracking.
A cantilever beam experiences its maximum bending moment at:
Answer: The fixed support
For a cantilever, the fixed support resists the full overturning effect, so bending moment is greatest there.