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Minimum clear cover (in mm) to the main steel bars in a slab, beam, column, and footing respectively are
- a)10, 15, 20, 25
- b)15, 25, 40, 75
- c)20, 25, 30, 40
- d)20, 35, 40, 75
Correct answer is option 'B'. Can you explain this answer?
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Minimum clear cover (in mm) to the main steel bars in a slab, beam, c...
Minimum clear cover requirement
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1. Slab = 15 mm
2. Beam = 25 mm
3. Column = 40 mm
4. Footings = 75 mm.
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Minimum clear cover (in mm) to the main steel bars in a slab, beam, c...
Minimum Clear Cover for Steel Bars in Different Structural Elements:
Slab:
- The minimum clear cover for the main steel bars in a slab is 15 mm.
Beam:
- The minimum clear cover for the main steel bars in a beam is 25 mm.
Column:
- The minimum clear cover for the main steel bars in a column is 40 mm.
Footing:
- The minimum clear cover for the main steel bars in a footing is 75 mm.
The correct answer is option 'B' - 15 mm for slab, 25 mm for beam, 40 mm for column, and 75 mm for footing.
Explanation:
The minimum clear cover for steel bars in different structural elements is specified to ensure the durability and strength of the structure. Clear cover refers to the distance between the outer surface of the concrete and the nearest surface of the reinforcing steel.
Slab:
- In a slab, the main steel bars are usually placed in the bottom layer to resist tensile forces. The minimum clear cover of 15 mm is required to protect the steel bars from corrosion and provide sufficient fire resistance.
Beam:
- Beams are horizontal structural members that support the load from the slab or other elements above. The main steel bars in a beam are subjected to bending moments and shear forces. To ensure the structural integrity and prevent corrosion, a minimum clear cover of 25 mm is required.
Column:
- Columns are vertical structural members that transfer the load from the superstructure to the foundation. The main steel bars in a column are subjected to axial compression and lateral forces. A minimum clear cover of 40 mm is necessary to provide sufficient concrete protection and prevent corrosion.
Footing:
- Footings are structural elements that transfer the load from the columns or walls to the foundation soil. The main steel bars in a footing are designed to resist bending moments and shear forces. To ensure the durability and structural stability of the footing, a minimum clear cover of 75 mm is specified.
In summary, the minimum clear cover for the main steel bars in a slab, beam, column, and footing is 15 mm, 25 mm, 40 mm, and 75 mm respectively. These values are determined based on the structural requirements and considerations of durability and safety.
Slab:
- The minimum clear cover for the main steel bars in a slab is 15 mm.
Beam:
- The minimum clear cover for the main steel bars in a beam is 25 mm.
Column:
- The minimum clear cover for the main steel bars in a column is 40 mm.
Footing:
- The minimum clear cover for the main steel bars in a footing is 75 mm.
The correct answer is option 'B' - 15 mm for slab, 25 mm for beam, 40 mm for column, and 75 mm for footing.
Explanation:
The minimum clear cover for steel bars in different structural elements is specified to ensure the durability and strength of the structure. Clear cover refers to the distance between the outer surface of the concrete and the nearest surface of the reinforcing steel.
Slab:
- In a slab, the main steel bars are usually placed in the bottom layer to resist tensile forces. The minimum clear cover of 15 mm is required to protect the steel bars from corrosion and provide sufficient fire resistance.
Beam:
- Beams are horizontal structural members that support the load from the slab or other elements above. The main steel bars in a beam are subjected to bending moments and shear forces. To ensure the structural integrity and prevent corrosion, a minimum clear cover of 25 mm is required.
Column:
- Columns are vertical structural members that transfer the load from the superstructure to the foundation. The main steel bars in a column are subjected to axial compression and lateral forces. A minimum clear cover of 40 mm is necessary to provide sufficient concrete protection and prevent corrosion.
Footing:
- Footings are structural elements that transfer the load from the columns or walls to the foundation soil. The main steel bars in a footing are designed to resist bending moments and shear forces. To ensure the durability and structural stability of the footing, a minimum clear cover of 75 mm is specified.
In summary, the minimum clear cover for the main steel bars in a slab, beam, column, and footing is 15 mm, 25 mm, 40 mm, and 75 mm respectively. These values are determined based on the structural requirements and considerations of durability and safety.
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Minimum clear cover (in mm) to the main steel bars in a slab, beam, column, and footing respectively area)10, 15, 20, 25b)15, 25, 40, 75c)20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?
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Minimum clear cover (in mm) to the main steel bars in a slab, beam, column, and footing respectively area)10, 15, 20, 25b)15, 25, 40, 75c)20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about Minimum clear cover (in mm) to the main steel bars in a slab, beam, column, and footing respectively area)10, 15, 20, 25b)15, 25, 40, 75c)20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Minimum clear cover (in mm) to the main steel bars in a slab, beam, column, and footing respectively area)10, 15, 20, 25b)15, 25, 40, 75c)20, 25, 30, 40d)20, 35, 40, 75Correct answer is option 'B'. Can you explain this answer?.
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