BSD-COLUMNS/FOOTINGS

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