Mechanic Behavior Analysis of Connection with Haunch under Single and Cyclic Load
Connection with haunch is a new type of rigid connection. Single and cyclic load test is modeled using the program ANSYS. The result under different axial-compression ratio including hysteretic curve, the energy dissipation coefficient, and the plastic angle on beam ending is ascertained. The hysteretic curve under the ratio 0.3-0.6 is stable, and shows better plastic rotation ability. It exists a limit that axial-compression ratio has an effect on the connection with haunch, the model in this paper is 0.6. With hunch, the node can not only make the relocation of the plastic angle occur, but also increase yield stiffness, ultimate load, energy dissipation coefficient, linear displacement ductility coefficient and the plastic angle of beam end. Steel structure is used more and more widely in engineering application because of its superior force performance, deformation ability and good economic benefit, which especially develops rapidly in high buildings that have seismic fortification. However during the Northridge Earthquake in America and Kobe Earthquake in Japan, a large amount of steel structure framework appeared brittle failure, and damage mainly concentrated in the connection, thus making peoples view of traditional rigid node shake; whats more, the earthquake disasters take place frequently in recent years, which make researchers pay more attention to the study of nodes. So it is imperative to exploit and study new node.
Connection with haunch Cyclic load Mechanics behavior
Li Yun Jiang GuoJun Liu XuDong Sun
The College of Civil Engineering, Inner Mongolia University of Technology, Hohhot, China
国际会议
上海
英文
848-852
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）