FINITE ELEMENT ANALYSIS ON THE INFLUENCE OF STEEL STRENGTHEN THE SEISMIC BEHAVIOR OF STEEL COLUMN
High strength steel has been applied in many steel structures all over the world,but the width-tothickness ratio limits of steel columns in seismic design codes of many countries are not completely applicable to high strength steel columns lacking of sufficient research. In order to study the influence of steel strength on the seismic behaviour of steel columns,finite element analysis is conducted to analyze the hysteretic behavior of steel box columns under a constant compressive axial force and cyclic lateral loading. The finite element model is built by the shell element and a multilinear kinematic hardening material model is employed. 3 kinds of steel grades,i.e. Q235,Q460 and Q690,are selected to carry out the analysis. The influences of the yield ratio,ultimate strain and the yield plateau length are investigated based on the analysis results. Then suggestions for the width-to-thickness ratio limits of high strength steel columns under severe earthquakes are proposed.
Steel strength Steel column Finite element analysis Seismic behaviour Yield ratio
Gang Shi Chun-Sen Deng Yong Zhang Yong-Jiu Shi Yuan-Qing Wang
Key Laboratory of Civil Engeneering Safety and Durability of China Education Ministry,Tsinghua Unive School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
2021-2027
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）