While designing the pile as a column, the end conditions adopted is -
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A.
One end fixed and other end hinged
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B.
Both ends fixed
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C.
One end fixed and other end free
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D.
Both ends hinged
Correct Answer:
A. One end fixed and other end hinged
Explanation:
When a pile is designed as a column, it is typically idealized with one end fixed and the other end hinged. This model assumes the bottom end is fixed due to the significant rotational and translational restraint provided by deep soil or rock embedment. The top end is considered hinged because its connection to the superstructure generally prevents lateral movement while allowing for some rotation. This specific configuration is used to determine the effective length factor (typically 0.7) for buckling analysis.
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