弱轴连接的梁柱狗骨式节点性能研究

在钢框架中梁柱弱轴连接同强轴连接一样普遍,其理论分析和设计更为困难,研究其节点的性能具有重要的理论意义和重大的工程应用价值.狗骨式节点是针对传统刚性节点延性不容易保证、容易发生脆性断裂的缺陷提出的一种新型节点.考虑几何、材料和接触3种非线性的ANYSYS有限元软件,对弱轴连接的梁柱狗骨式节点在单向和循环荷载作用下的受力特点及抗震性能进行研究.结果表明:通过对靠近节点处梁翼缘的适当削弱,可以使得在结构刚度和强度降低较小的情况下,节点的延性显著增加;使地震作用下塑性铰偏离脆弱的节点焊缝,出现在具有较大延性的梁端,以充分发挥钢材的塑性性能.

Research on the behavior of beam-to-column web connection in dog-bone style

Beam-to-column web connections are generally as flange connection in steel frames,its theory analysis and design are more difficult,so studies on the behavior of this connection are not only significant to the theoretical research,but also important in practice.The dog-bone connection is a new type connection which aimed at the shortcoming of traditional steel moment connection.The ductility of traditional connection is poor and easy to have rigid fracture.Strength characteristics and the seismic behavior o...