Question
Download Solution PDFThe maximum strain in concrete in compression at the outermost fibre is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Maximum Strain in Concrete in Compression
The maximum strain in concrete in compression at the outermost fiber is determined by the design standards and the stress-strain behavior of concrete under compression. According to IS 456:2000 (Indian Standard for Plain and Reinforced Concrete), the maximum strain in concrete at the outermost fiber in bending compression is:
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0.0035: This is the maximum strain when the concrete reaches its ultimate compressive strength.
Analyzing the Given Options
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"Option 1: 0.002" (Incorrect)
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While 0.002 is a strain value observed in some conditions, it is not the maximum strain defined by the standard for ultimate conditions.
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"Option 2: 0.003" (Incorrect)
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Although 0.003 is closer to the ultimate strain, it still does not meet the maximum strain value defined as 0.0035.
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"Option 3: 0.0035" (Correct)
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0.0035 is the maximum strain specified for concrete at the outermost fiber in bending compression as per IS 456:2000.
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"Option 4: 0.0025" (Incorrect)
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0.0025 is a strain value often observed during initial compression stages, but it is not the ultimate strain value.
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