长江大学学报（自然科学版）2024，Vol.21Issue(5)：128-138,11.
L形钢管混凝土柱-钢梁节点的抗震性能试验研究及有限元分析
Experimental study and finite element analysis on seismic performance of L-shaped steel pipe concrete column-steel beam joints
摘要
Abstract
In order to study the seismic performance of special-shaped steel tube concrete joints,six L-shaped steel tube concrete column steel beam joint specimens were made in a 1∶2 scale ratio.Through low cycle reciprocating tests,the influence of factors such as axial compression ratio,beam column line stiffness ratio,and the presence or absence of floor slabs on the seismic performance of joints were explored.The test results show that the hysteresis curve of the specimen is full,and the specimen exhibits good seismic performance;As the stiffness ratio of the beam to column increases,the strength,stiffness,and ductility of the specimens all improve;As the axial compression ratio increases,its energy dissipation capacity also increases,but its ductility decreases;In addition,the presence of concrete floor slabs has a significant impact on the bearing capacity of nodes.At the same time,ABAQUS finite element software is also used to establish a finite element model for simulation analysis.The results show that the finite element calculation results are in good agreement with the experimental results,thus verifying the accuracy of finite element modeling and providing a basis for parameter analysis.关键词
异形钢管混凝土/钢梁节点/低周往复/滞回曲线/有限元Key words
special shaped steel tube concrete/steel beam nodes/low cycle reciprocating/hysteresis curve/finite element analysis分类
建筑与水利引用本文复制引用
张继承,卢盛庆,杨浩,刘孝禹..L形钢管混凝土柱-钢梁节点的抗震性能试验研究及有限元分析[J].长江大学学报（自然科学版）,2024,21(5):128-138,11.基金项目
国家自然科学基金项目"基于应力监测的异形钢管混凝土柱框架-RC核心筒混合结构抗震性能及失效机理研究"(51778065). （51778065）
