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Rigidity of Reinforced Concrete Pile-Cap
Title: Rigidity of Reinforced Concrete Pile-Cap
Author(s): Lian Duan and Steven B. McBride
Publication: Concrete International
Volume: 17
Issue: 1
Date: January 1, 1995
To investigate the rigidity of reinforced concrete pile-caps, a typical highway bridge pile-cap was analyzed by a three-dimensional finite element GTSTRUDL model. The deflection shapes of the pile-cap and pile reactions with various length to thickness ratio of cantilever (L/D) have been studied extensively. It is found that the assumption of the rigid pile-cap is no longer valid when L/D > 2.2 is used to determine pile reactions. A limit of the length to thickness ratio (L/D) less than or equal to 2.2 may be used to provide the design assumption that the pile cap acts as a rigid member.
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