Failure behavior and influencing parameters of cold-formed thin-walled steel members with rectangular section under cyclic load
Yang Na1 Zhong Ya Nan2
1. School of Civil Engineering & Architecture, Beijing Jiaotong University, Beijing 100044, China2. Beijing New Building Material Group, 10/F, Building 4, Interwest Business Center, No.9, South Road Shouti，Haidian District，Beijing 100048，China
A quasi-static test on the hysteretic behavior of rectangular section steel column-beam members under constant axial compression and cyclic bending load is here carried out, in which the failure behavior, hysteretic curves, skeleton curves, energy-dissipation performance and ductility capacity are analyzed comprehensively. Based on the true rule of test results, parametric studies by finite element software ANSYS were carried out to investigate the hysteretic capacity. Analytical results showed that axial compression weakened the load-carrying capacity, rigidity and ductility performance at post-buckling stage. There existed the optimal section height-width ratio which performed the best ductility capacity. The ductility capacity tended to get worse when height-width ratio exceeded the critical value. With the increase in slenderness ratio, the ultimate load-carrying capacity, deformation capacity and energy-dissipation capacity got worse.
杨娜 仲亚囡. 循环荷载作用下冷弯薄壁矩形截面构件的破坏行为及影响参数[J]. , 2013, 32(19): 12-16.
Yang Na Zhong Ya Nan. Failure behavior and influencing parameters of cold-formed thin-walled steel members with rectangular section under cyclic load. , 2013, 32(19): 12-16.
2013, Vol. 32 
