Pile caps are analyzed and designed according to "strut-tie system".

二是建议按“撑系杆体系”进行分析和设计。

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In this paper the spatial strut and tie model is used, and the connection is simplified as a structural system which is composed of a series of steel bars and concrete struts.

本文采用空间拉压杆原理将节点简化为由一系列钢筋拉杆及混凝土压杆组成的结构体系。

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