基坑工程钢支撑系统的横向承载能力分析

本文以某工程事故为背景，根据薄壁杆件结构理论，以杆系结构非线性有限单元法和子空间迭代法等数值方法为计算内核，编制了工程应用软件。并采用软件对基坑工程中的钢支撑系统的横向承载能力进行了分析研究，对基坑支护工程的钢支撑系统的设计施工有一定的参考价值。

Analysis on the Lateral Load Bearing Capacity of Steel Bracing System in Excavation Engineering

Based on the theory of thin walled structures with F.E.method and subspace iteration method to solve the characteristic value,a comprehensive method is proposed to determine the lateral load capacity of the bracing system in the excavation engineering. The influence of initial internal forces to non-linear geometric rigidity is taken into account and increment computation technique is also adopted. Special program is then developed and its application to some projects is presented.