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A reinforced concrete column of size 400 mm × 400 mm is having the diameter of longitudinal bar as 20 mm. The pitch of lateral ties in such a case should be:
- a)320 mm
- b)400 mm
- c)300 mm
- d)250 mm
Correct answer is option 'C'. Can you explain this answer?
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A reinforced concrete column of size 400 mm × 400 mm is having t...
X 400 mm is subjected to a compressive load of 500 kN. The column is 3 meters in height. The concrete has a compressive strength of 30 MPa and the steel reinforcement has a yield strength of 400 MPa. Determine if the column is safe against compressive failure.
To determine if the column is safe against compressive failure, we need to calculate the maximum load the column can withstand and compare it to the applied load.
First, let's calculate the cross-sectional area of the column:
Area = (400 mm) x (400 mm) = 160,000 mm² = 0.160 m²
The maximum load the column can withstand is given by the formula:
Maximum Load = Area x Compressive Strength of Concrete
Maximum Load = 0.160 m² x 30 MPa = 4.8 MN
Now, let's compare the maximum load with the applied load:
Applied Load = 500 kN = 0.5 MN
Since the maximum load (4.8 MN) is greater than the applied load (0.5 MN), the column is safe against compressive failure.
To determine if the column is safe against compressive failure, we need to calculate the maximum load the column can withstand and compare it to the applied load.
First, let's calculate the cross-sectional area of the column:
Area = (400 mm) x (400 mm) = 160,000 mm² = 0.160 m²
The maximum load the column can withstand is given by the formula:
Maximum Load = Area x Compressive Strength of Concrete
Maximum Load = 0.160 m² x 30 MPa = 4.8 MN
Now, let's compare the maximum load with the applied load:
Applied Load = 500 kN = 0.5 MN
Since the maximum load (4.8 MN) is greater than the applied load (0.5 MN), the column is safe against compressive failure.
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Community Answer
A reinforced concrete column of size 400 mm × 400 mm is having t...
As per IS 456:2000, clause 26.5.3.2 (c),
Pitch:
The pitch of transverse reinforcement shall be not more than the least of the following distances:
Pitch:
The pitch of transverse reinforcement shall be not more than the least of the following distances:
- the least lateral dimension of the compression members
- 16 times the smallest diameter of the longitudinal reinforcement bar to be tied (i.e. 16 φmin)
- 300 mm
The diameter of the Lateral Ties: The diameter of the lateral ties shall be not less than one-fourth of the diameter of the largest longitudinal bar and in no case less than 6 mm.
Calculations: The pitch of transverse reinforcement shall be
Calculations: The pitch of transverse reinforcement shall be
- The lest lateral dimension = 400 mm
- 16 × 20 mm = 320 mm
- 300 mm
whichever is smaller
Hence, the pitch of lateral ties shall be kept as 300 mm.
Hence, the pitch of lateral ties shall be kept as 300 mm.
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A reinforced concrete column of size 400 mm × 400 mm is having the diameter of longitudinal bar as 20 mm. The pitch of lateral ties in such a case should be:a)320 mmb)400 mmc)300 mmd)250 mmCorrect answer is option 'C'. Can you explain this answer?
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