For a vertical stiffened web of a plate girder, the lesser clear dimension of the panel should not exceed:
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A.
180 t
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B.
85 t
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C.
250 t
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D.
200 t
Correct Answer:
A. 180 t
Explanation:
The correct answer is 180 t. According to structural design standards like IS 800:2007, for a plate girder equipped with vertical stiffeners, the smaller clear dimension of the web panel (either the height of the web or the horizontal distance between stiffeners) is restricted to 180 times the thickness of the web (t). This limitation is essential to prevent the slender web from buckling prematurely under shear or compressive stresses. By maintaining the panel dimensions within this ratio, the girder preserves its structural stability and ensures that the web can effectively resist applied loads without losing its shape.
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