WorksheetsBSD-COLUMNS/FOOTINGS
Total questions: 25
Worksheet time: 20mins
What do columns do in a structure?
Provide no support
Provide diagonal support
Provide vertical support
Provide horizontal support
What is the purpose of architectural design in columns?
To provide aesthetic appeal
To ensure structural stability
To reduce construction costs
To increase load-bearing capacity
What are the structural requirements for column dimensioning and sizing?
40mm concrete clear covering
8mm minimum rebar size for lateral ties
50mm concrete clear covering
Minimum clear spacing of 30mm between vertical bars
How is the width of a column calculated?
B = 2Cc + 2dt + 2db + Sc
B = Cc + dt + db + Sc
B = Cc + dt + db
B = 2Cc + 2dt
What is the effect of increasing the unbraced height of a column without increasing its cross-sectional dimensions?
Increases load-bearing capacity
Makes the column slender
Improves buckling resistance
Reduces structural instability
What is the recommended minimum rebar size for lateral ties in columns?
6mm
8mm
12mm
10mm
What is the minimum clear spacing between vertical bars in columns?
40mm
35mm
30mm
45mm
What is the limiting condition for columns?
Structural instability
Slenderness
Excessive load-bearing capacity
Buckling resistance
It is the lowest part of the building or the civil structure that is in direct contact with the soil which transfers loads from the structure to the soil safely.
Foundation
Columns
Beams
Slabs
It is also known as a strip footing or continuous footing, is a type of shallow foundation used to support a load-bearing wall or a line of closely spaced columns.
Wall
Spread
Strap
Combined
Spread footings, also known as (a) footings, are individual footings that support isolated columns or walls.
Strap footing also known as cantilever footing, is a special case of combined foundation in which two separate footings are tied together by a beam called tie beam or (a) beam.
It is a type of foundation that supports two or more columns or load-bearing elements in close proximity to each other.
(a)
Mat foundations, also called (a) foundations, are continuous concrete slabs that cover the entire footprint of a building.
According to NBCP, Section 708.d, what is the minimum thickness of footings in millimeters?
(a)
Overall depth of foundation shall be selected such that the effective depth of bottom reinforcement is at least 150 mm. This can be found in Section (a) ._._._ of NSCP
According to NBCP, Section 708.d, what is the minimum depth of footings in meters below the ground surface?
(a)
Recommended depth and thickness of footings of a 2-STY RESIDENTIAL BLDG in meters.
(a)
Recommended depth and thickness of footings of a BUNGALOW BLDG in meters.
(a)
The preferred flange to thickness ratio of foundations is less than
(a)
The recommended flange to thickness ratio of foundations is less than
(a)
The minimum size of rebars for wall footings is (a) mm.
The minimum size of rebars for footings of a bungalow dwellings is (a) mm.
The minimum size of rebars for footings of a 2STY Residential Buidling is (a) mm.
Spacing of Rebars for Footings is between ___ mm to ___ mm O.C.
(a)
