摘要
为研究 Y型支撑耗能梁段在低周循环荷载作用下的耗能性能 ,建立了耗能梁段模型 .采用非线性壳体有限元 ,引入混合强化的材料本构关系 ,对剪切屈服型耗能梁段在循环荷载作用下的滞回性能进行了分析 .通过计算 ,得出影响能量耗散的因素及变化规律 ,提出设计
In order to study Y type eccentrically braced link beams of behavior under seismic loading,the calculated model of link beam is established,The hysteretic behavior of link beam failed in shear yielding mode is analyzed in details by using FEM with nonlinear shell element.The constitutive laws of steel adopted is mixed with harden model.The failure mechanism and capacity of link beam is achieved under earthquake.The factors and varied rules influencing link beam failed in shear yielding mode is analyzed under cyclic loads.The proposal and countermeasure for designing Y type eccentrically braced link beams is put forward.
出处
《西安建筑科技大学学报（自然科学版）》
CSCD
2001年第4期375-378,386,共5页
Journal of Xi'an University of Architecture & Technology(Natural Science Edition)
基金
国家自然科学基金项目 (596 780 30 )
冶金工业部有偿与资助科研基金项目 (1997)
关键词
耗能梁段
循环荷载
能量耗散
Y型支撑钢框架
Y type eccentrically brace failed in shear yielding mode link beam
cyclic loads
energy dissipation
ductility
highness to thickness ratio of web
