SHAKEDOWN ANALYSIS OF ELASTO－PLASTIC STRUCTURES SUBJECTED TO EXTERNAL LOADING AND TEMPERATURE VARIATION

A new kinematical shakedown theorem is presented under the consideration thatexternal load and temperature change slowly . A incremental collapse criterion, whichis simple and applicable, is also derived based on the theorem. In the end of this paper,its application is illustrated by an example.

弹塑性结构在外载和温度作用下的安定分析

本文在考虑外载和温度的缓慢变化下，提出了一个新的运动安定定理。同时，在此基础上，又导出了既简单又适用的增量破坏准则．文末也以实例说明了它的应用。

增量破坏型机动安定性分析方法及其应用

根据避免累积塑性变形发生的安定准则,构造了相应的安定性数值求解方法,进而用于确定海洋平台地基的安定荷载上限近似解,为评价地基在复杂变值荷载作用下的承载力提供了依据。