Nonlinear Finite Element Analysis of Steel Frame with Semi-rigid Connections
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.
Semi-rigid Connection Spring Restraint Hybrid Beam Element Nonlinear Analysis
Guohua Li Chengzhi Qi Jian Luo
Beijing Research Center for Engineering Structures and New Materials,1Beijing university of civil engineering and Architecture,Beinjing,100044,China
国际会议
上海
英文
1199-1202
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）