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Behaviour of precast reinforced concrete pile caps
Abstract
The objective of this investigation is to study the behaviour of precast reinforced concrete pile caps and the ultimate
load-carrying capacity. Three pile cap units were cast and tested to failure. One unit was a control pile cap cast in situ and the
other two were precast reinforced units with in situ concrete infill. The experimental results showed that the precast pile cap
behaved in a similar manner as compared with the conventional cast in situ pile cap. Furthermore, all the three units failed at
loads exceeding the failure loads predicted using conventional design methods and exhibited predicted failure modes. In addition,
there was a substantial increase in productivity as the precast pile caps could be constructed quickly and thus reducing the risk of
exposing the excavated pit to rain and possible failure of the unsupported sides. Q 2000 Elsevier Science Ltd. All rights reserved.
Keywords: Precast; Pile caps; Ultimate load