Last Flashcards
1
Q
Principles of shear walls
A
- Continuous with no openings
- extend from the foundation to the roof level
- placed symmetrically to avoid twisting of the building
- used in concrete structures
2
Q
Cross bracing properties
A
- Continuous with no openings
- extend from the foundation to the roof level
- placed symmetrically to avoid twisting of the building
- used in steel structures
- extends from corner to corner
- constructed of angles stars or H Sections
3
Q
Compression bracing properties
A
- Continuous with no openings
- extend from the foundation to the roof level
- placed symmetrically to avoid twisting of the building
- used in steel structures
- extends from corner to corner
- constructed of tubes or H Sections
4
Q
Cores
A
Resist laterall load and are elevators or stairwells and provide stability in a directions
5
Q
Stability of platform
A
- Bracing should be in a zig zag pattern
-bracing should be continuous - - diagonals are usually at angles
- bracing should be in two directions
6
Q
Strip foundation properties
A
- Used in domestic structures
- unreinforced
- bearing pressures are not more the 100 KPA
- spread in foundations at 60°
- 250 - 300 thick and 600 - 750 wide
7
Q
Raft foundations
A
Used in poor soil conditions, deep and thick (400 to 1000 mm)
8
Q
Pile foundations
A
- Resists using soil friction and pressure under the bulb
- used In poor soil for resisting heavy loads
- depth is down to rock
- like an underground column
9
Q
Pad foundation
A
- Designed to withstand non symmetrical pressures
- 250 - 500 thick
- used in steel and concrete structures
- longest side is in the direction of bending
