Nonlinear Finite Element Analysis of Steel Frame with Semi-rigid Connections

被引：1

作者：

Li, Guohua ^{[1
]}

Qi, Chengzhi ^{[1
]}

Luo, Jian ^{[1
]}

机构：

[1] Beijing Univ Civil Engn & Architecture, Beijing Res Ctr Engn Struct & New Mat, Beijing 100044, Peoples R China

来源：

VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II, PTS 1-3 | 2012年 / 226-228卷

关键词：

Semi-rigid Connection; Spring Restraint Hybrid Beam Element; Nonlinear Analysis;

D O I：

10.4028/www.scientific.net/AMM.226-228.1199

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In conventional analysis and design, the beam-column connections are divided into two categories: fully rigid joints and perfectly pinned joints. Actually, most beam-column connections exhibit flexibility. Idealized connections may diverge from the real reaction of structures. This article presents a hybrid finite-element model that consists of a beam element with two semi-rigid connections at the ends for studying the effect of the flexibility on the structures. Based on the theory of finite deformation, the first-order and the second-order stiffness matrix and the equilibrium equation of hybrid beam element were got. A nonlinear finite element analysis program was developed to analysis the steel frames with semi-rigid connections. At last, one-bay, two-story semi-rigid planar steel frame was analyzed using the program, and some conclusions about the effect of semi-rigid connections flexibility were obtained.

引用

页码：1199 / 1202

页数：4