平端板连接半刚性梁柱组合节点的弯矩-转角模型  

Moment-Rotation Models of Semi-Rigid Composite Beam-To-Column Joints with Flush End Plate Connection

作　　者：石文龙[1,2] 李国强[3] 叶志明[1] 刘秀华 

机构地区：[1]上海大学土木工程系,上海200072 [2]沈阳建筑大学结构工程重点实验室,辽宁沈阳110168 [3]同济大学土木工程学院,上海200092 [4]江西景德镇昌河建筑设计院,江西景德镇333002

出　　处：《沈阳建筑大学学报（自然科学版）》2009年第3期414-420,共7页Journal of Shenyang Jianzhu University：Natural Science

基　　金：中国博士后科学基金项目(20070410174);沈阳建筑大学结构工程省级重点实验室开放基金项目(JG200712)

摘　　要：目的研究半刚性连接弯矩-转角关系,为半刚性组合框架设计提供依据.方法采用连接弯矩-转角关系的数学模型模拟方法,并利用4个平端板连接半刚性梁柱组合节点的拟动力试验和低周反复荷载试验的结果进行验证.结果给出了平端板连接半刚性梁柱组合节点弯矩-转角关系的模型,包括单调加载和循环加载模型.在单调荷载作用下,连接的弯矩-转角关系曲线有三线性和幂函数两种形式;在循环荷载作用下,给出的连接滞回模型同样包含两种形式:第一种,骨架曲线采用与单调荷载作用下相同的三线性形式,滞回曲线采用最大点指向形式;第二种,骨架曲线采用与单调荷载作用下相同的三参数幂函数形式,而滞回曲线同前.结论与现有试验数据的比较表明,给出的平端板连接弯矩-转角关系模型与试验结果吻合较好,可供工程设计使用.Moment-rotation models of semi-rigid composite beam-to-column joints with flush end plate connection was studied. The moment-rotation models of connection were derived by mathematical simulation and verified by experimental results of four specimen tested under pseudo dynamic load and low cyclic load. The models of moment-rotation relationship of flush end-plate composite connections were put forward for the monotonic loading and cyclic loading. Under monotonic loading, the curves of moment-rotation relation- ship of composite connections included these two parts： trilinear model and power function model. Under cyclic loading, the hysteretic models included two parts too. First, the skeletal curves of composite connections were trilinear, and the hysteretic curves were max-oriented. Second, the skeletal curves of composite connections were power function models, while the hysteretic curves were the same as those of the former. The models given show good agreement with the experimental results and can be used for practical engineering design.

关 键 词：平端板连接 组合节点 半刚性 弯矩-转角关系 

分 类 号：TU398[建筑科学—结构工程]