改进塑性铰法在钢框架高级分析中的应用  

Nonlinear Analysis Technique of Refined Plastic-hinge Method for Steel Frame Structures

作　　者：李文岭[1] 郝际平[1] 王连坤[1] 陈红英[1] 石晶[1] 张俊峰[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《重庆建筑大学学报》2005年第2期128-133,共6页Journal of Chongqing Jianzhu University

基　　金：国家自然科学基金资助项目(50378078)

摘　　要：改进塑性铰法是一种简化的高级分析方法。该方法能够考虑结构及构件的二阶效应、几何缺陷和残余应力等多种非线性因素的影响,还可以考虑连接的半刚性性能。改进塑性铰法已可用于平面钢框架的高级分析和设计,对空间钢框架的高级分析尚有待发展。详细介绍了实用的改进塑性铰法对各种非线性因素的处理办法,及平面框架分析向空间框架分析扩展的实用方法,并讨论了当前改进塑性铰法高级分析亟待解决的问题。The refined plastic -hinge method is one of the simplified advanced analysis methods. The second order effects of the whole structure and its members, geometric imperfections and residual stress as well as the feature of semi-rigid connections can be taken into account in this method. The refined plastic-hinge method can be used in advanced analysis and design of planar steel frames, while its use in the advanced analysis of space frames needs to be developed. The technique associated with the dealing of different inelastic factors in advanced analysis of both the planar and space steel frames with practical refined plastic-hinge method and the available way to extend planar frame analysis to space frame analysis are reviewed in detail. The problems of the refined plastic-hinge method for advanced analysis are discussed in this paper.

关 键 词：改进塑性铰法 非线性分析 高级分析 钢框架 

分 类 号：TU391[建筑科学—结构工程]