钢框架结构二阶弹塑性变形的一种实用分析模型  

A NEW MODEL FOR SECOND-ORDER ELASTO-PLASTIC ANALYSIS OF STEEL FRAMES

作　　者：张玉生[1] 孙燕[2] 胡孔国 

机构地区：[1]铁道部第四勘测设计院,武汉430063 [2]中国矿业大学北京校区,北京100081 [3]国家工业建筑诊断与改造工程技术研究中心,北京100088

出　　处：《工业建筑》2001年第5期54-55,61,共3页Industrial Construction

摘　　要：为精确反映钢框架结构中塑性发展、分布和塑性铰的产生顺序 ,反映构件的P -δ效应、整体P -Δ效应和初始缺陷等 ,提出了改进的Comp -P单元[6 ] ,从而能很好地描述结构在各种荷载作用下的变形情况。该单元使用方便 ,用 1单元 构件划分方式 。In this paper, a refined Comp P element model is presented to describe the development and distributing of plasticity in a steel frame, as well as the appearing sequence of plastic hinges,the P-δ effect and the P-Δ effect.Deformations under all kinds of loads can also be well reflected.Moreover,it can model the steel structure with the permission of single element per member, so that non linear dynamic analysis for large structure can be well performed.

关 键 词：钢结构 框架结构 分布塑性 弹塑性变形 

分 类 号：TU391[建筑科学—结构工程]