摘要
为研究波折腹板钢梁柱半刚性外伸端板连接节点的滞回性能,采用ANSYS有限元软件,对半刚性外伸端板连接节点施加循环荷载,得到其弯矩-转角滞回曲线,分析节点的受力特性和延性系数;分别调整梁腹板高度和厚度,分析其对弯矩-转角滞回曲线的影响。结果表明:随着荷载的增大,残余变形的累加,节点承载力和刚度逐渐降低,弯矩-转角滞回曲线由线性特征转变为非线性特征;梁腹板高度和梁腹板厚度对节点的延性系数和滞回性能影响显著。
In order to study hysteretic behavior of semi-rigid extended end-plate connection joint of beam-column with corrugated webs,semi-rigid extended end-plate connection joints were simulated under the cyclic loading with the finite element software ANSYS.The moment-rotation hysteretic curve pictures were obtained,the mechanical properties and ductility coefficient of the connection joints were analyzed.The height and thickness of the beam web were adjusted respectively to analyze their influence on the moment-rotation hysteretic curve.The results showed that with the increase of load and residual deformation,the stiffness and bearing capacity of the connection joints reduced gradually,the characteristics of moment-rotation curve turned from linear into nonlinear：the height and the thickness of the beam web had a significant impact on hysteretic behavior and ductility coefficient of connection joints.
出处
《钢结构》
北大核心
2017年第4期6-10,共5页
Steel Construction
基金
河北省自然科学基金资助项目(E2010001012)
关键词
波折腹板钢梁
半刚性
外伸端板连接
弯矩-转角滞回曲线
延性系数
beams with corrugated webs
semi-rigid
extended end-plate connections
moment-rotation hysteretic curve
ductility coefficient
