【作者】 韩明岚； 张梦龙； 张效禹； 时建华；

【Author】 HAN Minglan;ZHANG Menglong;ZHANG Xiaoyu;SHI Jianhua;School of Science,Qingdao University of Technology;Department of Civil Engineering,Qingdao University of Technology;

【机构】 青岛理工大学理学院； 青岛理工大学土木学院；

【摘要】 装配式结点大都属于半刚性结点,半刚性结点框架内力分布与刚性结点框架内力分布有所不同,借助半刚性结点框架中杆单元转角位移方程,对两层半刚性结点钢框架进行内力计算和变形分析,通过数值计算软件MATLAB分析框架内力、变形与结点刚度的对应关系,并通过结点刚度与梁线刚度比值来定义结点刚度属性。分析表明结点的半刚性对结构的内力和变形有着明显的影响,梁长一定时,梁柱线刚度比越大,定义半刚性结点时对应的结点刚度与梁线刚度的比值越小;而梁长和柱高对半刚性结点的定义几乎没有影响。基于试验研究或理论推导获取装配式结点的初始刚度,采用该方法计算装配式结构的内力,可为装配式钢框架结构的设计提供技术支持。更多还原

【Abstract】 Most of the fabricated connections belong to semi-rigid connections.The internal force distribution of frame with semi-rigid connection is different from that of steel frame with rigid connections.Based on angular displacement equation of the bar in the steel frame with semi-rigid connections,internal force calculation and deformation analysis of the two-layer steel frame with semi-rigid connections is analyzed.Relationship between the force,deformation and joint stiffness is analyzed by using numerical calculation software MATLAB,and connection stiffness property is defined by ratio of connection stiffness to beam linear stiffness.The analysis shows that semi-rigidity of the connection has obvious effect on the force and deformation of the structure.When the beam length is constant,the ratio of the beam linear stiffness to column linear stiffness is larger.The ratio of the connection stiffness to the beam linear stiffness is smaller when semi-rigid connection is defined.Beam length and column height have little effect on definition of the semi-rigid connection.The initial stiffness of the fabricated joint can be estimated through experimental research or theoretical derivation.The internal force of the fabricated structure is calculated by this method,which provides technical support for the designing of the fabricated steel frame structure.更多还原