循环荷载作用下半刚性钢框架的滞回性能探讨  

INVESTIGATION OF THE HYSTERETIC BEHAVIOR OF SEMI-RIGID STEEL FRAMES UNDER CYCLIC LOADS

作　　者：李光明[1] 郭兵[1] 王宏壮 李峰 

机构地区：[1]山东建筑工程学院土木工程学院,济南250014 [2]山东大卫建筑设计有限公司,济南250014 [3]山东省建院钢结构工程技术中心,济南250014

出　　处：《建筑技术开发》2006年第6期19-20,26,共3页Building Technology Development

基　　金：山东省自然科学基金资助项目（Q2003F01）.

摘　　要：钢框架以其侧向刚度的大小可以分为刚性框架，半刚性框架，柔性框架3类。为了探讨循环荷载作用下半刚性钢框架的极限承载力和滞回性能，从而观察框架刚度和高度对抗震能力的影响。在试验研究的基础上运用ANSYS有限元分析软件对不同节点刚度，不同层数的两跨半刚性钢框架进行了一系列分析，总结出在循环荷载作用下半刚性钢框架的抗震能力随刚度和高度变化的趋势：随着刚度的减小抵御地震的能力呈先减小后增大的趋势，并且随着建筑物高度的增大受刚度的影响逐渐减弱。Steel frames can be divided into rigid frame, semi-rigid frame and sway frame according to their lateral rigidness. In order to investigate the ultimate bearing capacity and hysteretic behavior of semi-rigid steel frames under repeated loads and investigate the affections that the rigid and height is to the resistance of earthquake loads, this paper uses ANSYS finite elements computer package to analyze the rigidness of different connections and the two span semi-rigid steel frames of different levels. The experiment shows that the resistance of earthquake loads of semi-rigid steel frames turns to be a drop and then a rise tendency as the rigidness of the frames decrease and the influence of rigidness will be weakened as the height of the buildings increase.

关 键 词：半刚性钢框架 循环荷载 滞回性能 

分 类 号：TU391[建筑科学—结构工程] TU323.5