In case of web crippling, the dispersion of load from bearing plate takes place at:
-
A.
30°
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B.
60°
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C.
45°
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D.
10°
Correct Answer:
A. 30°
Explanation:
In structural engineering, web crippling occurs when a concentrated load or reaction is applied to a narrow area of a steel beam, causing the thin web to buckle. To calculate the resistance to this failure, it is assumed that the load spreads out from the bearing plate into the web. Standard design codes, such as IS 800, specify that this dispersion of load from the edge of the bearing plate to the root of the flange occurs at a 1:2.5 slope, which is approximately an angle of 30 degrees. This dispersion model helps determine the effective length of the web that resists the applied crushing force.
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