Question
Download Solution PDFFor a beam, if d = effective depth, b = width and D = overall depth, then the maximum area of compression reinforcement in a beam is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
- Excessive reinforcement leads to congestion of bars which adversely affects the placement and compaction of concrete.
- CI. 26.5.1.2 of IS 456:2000 limits the maximum area of steel reinforcement in tension (Astmax) and compression (Ascmax) to 4% of gross area i.e. 0.04bD.
Important Points
Some other provision is given by IS 456:
- The minimum area of tensile reinforcement =
"> Astbd=0.85fy Astbd=0.85fy �����=0.85�� �����=0.85�� - Nominal cover = 25 mm
- Ultimate tensile strain in steel is in the range of = 0.12% to 0.2%
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