基于空间桁架理论的桩基础厚承台施工要点分析

The construction analysis of thick pile caps in pile foundation based on theory of a spacial strut-and-tie model

桩基础厚承台不同于一般的梁板构件,其传力机理符合空间桁架模型。通过对按1∶5缩尺的桩基础厚承台的试验分析,观察试验构件的破坏特征,以空间桁架模型理论为基础,总结如何通过在施工中重视空间桁架理论的应用,采取适当的施工工艺和施工措施,以提高桩基础厚承台的实际承载能力。

The pile caps in pile foundation are different transfer mechanism of thick pile caps conforms to the from the ordinary beam and plant components. The spacial strut-and-tie model. Through the analysis in the pile caps test with the shrink rule of 1- 5, this paper introduces the observation on members destroy. On the basis of strut-and-tie model theory, the paper gives a conclusion on how take the appropriate construction technology and construction measures to improve the actual bearing capacity of the pile caps in pile foundation.