【作者】 李童；

【导师】 完海鹰； 干洪；

【作者基本信息】 合肥工业大学 ， 结构工程， 2005， 硕士

【摘要】 梁柱连接的节点是高层钢结构节点设计中的关键,在早期的高层钢结构设计中,为了能有效抵抗结构在侧向荷载作用下的水平位移,工程师们一般将节点做成“刚节点”,但历次震害表明,这种节点延性较差,节点发生大量脆性破坏,因此人们开始关注于通过高强螺栓连接件(角钢,端板以及T型钢等)把梁柱连接起来的半刚性节点。为此,本文在参照国内外大量文献资料的基础上,致力于研究一种具有优良抗震性能的新型节点一双腹板,顶底角钢半刚性连接节点。采用大型有限元通用软件模拟该种连接在周期荷载作用下的试验,研究了该连接在弯矩荷载作用下的破坏机理,作出了该连接的滞回曲线,并确定了滞回模型和模型参数,通过实验数据分析研究该种连接在反复荷载作用下的滞回性能和耗能特性,针对不同参数的双腹板,顶底角钢半刚性连接节点进行系统的数值模拟试验,分析各参数对节点性能的影响,得出节点性能随各参数的变化规律。更多还原

【Abstract】 The joint between beam and column is the key of the designation of high-rise building.In order to resist the structure’s lateral load and reduce the lateral displacement efficiently in the tier or tall building structure , it is generally designed the joint as rigid joint earlier. But several earthquake has proved that it is of poor ductility and is brittle destroyed easily.So people begin to put their eyes on the semi-rigid joint which connect the beam and column by high strength bolts and connecting components, for example angle, end-plate and shape T steel.Therefore,the paper is dedicated to study a new type joint-top and seat angle with double web angles semi-rigid connection. The research of this connection under cyclic loading is simulated using powerful finite element analysis software.The damage mechanism under the moment loading is studied and the hysteresis curve is obtained, the hysteresis model and the parameter of the model is defined to provide academic and numerical foundation. The research on the hysteresis behavior and power consumption behavior of this joint under the cyclic loading is completed. Numerical Simulation on top and seat angle with double web angles semi-rigid connection with different parameter is done and the influence of different parameter to the behavior of joint is analysed.更多还原