有位移约束结构的可靠性分析

RELIABILITY ANALYSIS OF STRUCTURAL SYSTEMS WITH DISPLACEMENT CONSTRAINT

本文从增量载荷法的原理出发，对于具有位移约束的结构体系，通过引入“广义元”的概念，提出了计算其刚度破坏承载能力的方法，使结构体系的可靠性分析范围扩展到强度和刚度要求并存的情况，物理概念清楚，方法有效。通过算例阐述了该方法的应用。

In this paper, a method is presented for computing the load carring capacity of structural systems with displacement constraints by introducing the conception of generalized element into the incremental load approach,thus extending the reliability analysis range of structural systems from strength failure to both strength and rigidity failure.The principle of the method is clear and simple.A truss example is given to clarify the method and its application.