外加强环式箱型截面钢柱-H型钢梁异型节点抗震性能研究  

Seismic performance of irregular joint of out strengthened ring-shaped box column-H steel beam

作　　者：隋伟宁[1] 王占飞[1] 白雪[1] 时庆泽 SUI Weining WANG Zhanfei BAI Xue SHI Qingze(College of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《世界地震工程》2016年第4期17-24,共8页World Earthquake Engineering

基　　金：国家自然科学基金项目(51108278);辽宁省教育厅项目(LJQ2013063)

摘　　要：进行了3个左右两侧梁标高不同的外加强环式箱型截面柱-H型钢梁异型节点的抗震性能试验和有限元分析研究,考察了梁标高差与梁高之比参数β变化时该类部分框架节点域的抗震性能。研究表明:(1)除了节点域的剪切变形外,柱壁焊缝开裂引起外环板的断裂为主要破坏模态;(2)异型节点域的设计高度可以取核心节点域高度;(3)有限元分析方法能很好地模拟试验的荷载位移曲线和破坏模态;(4)外加强环式节点滞回曲线饱满、耗能性能好,具有较好的抗震性能。Experiment and finite element analysis were conducted with 3 specimens to investigate the seismic performance of joint of out strengthened ring-shaped box column-H steel beam with different height level in two sides. Taking ratio of beam level difference to beam height as parameter β, the seismic performance of partial frame joint region under change of fl was explored. The test result shows reviewed that： （1）besides shear deformation of panel, the failure modes of the panel zone are weld cracking of column wall; （2）the design height of abnormal shape joint region may take the height of core joint region;（3）finite analysis results are in good agreement with test results; （4）the hysteretic curves of out strengthened ring-shaped are prump which shows much energy dissipation and better seismic performance.

关 键 词：钢框架 外加强环式节点 异型节点域 抗震性能 试验研究 数值模拟 

分 类 号：TU378[建筑科学—结构工程]