摘要
为了研究小角度斜柱式转换结构的力学性能,应用Sap2000非线性有限元软件,分别将一榀梁式框支剪力墙模型和一榀小角度斜柱式框支剪力墙模型作为研究对象。运用push-over方法,采用均布荷载和倒三角荷载2种水平加载方式,对结构的屈服荷载、极限荷载、初始刚度、延性、结构的出铰顺序等进行分析。与梁式转换结构相比,斜柱式转换结构的极限荷载、初始刚度较大、延性更好,出铰顺序更有利于实现强节点,是一种有效的抗震结构体系。
To study the characteristic of the structure, a simplified model is adopted to simulate frame-supported shear wall and small angle inclined column-supported shear wall in sap2000. According to push-over analysis with two kinds of horizontal loads： even load and inverted triangle load, the yield load, ultimate load, initial stiffness, ductility of structure and order of plastic hinge are studied. Comparing with beam-shaped transfer structure, the small angle inclined column-shaped transfer beam displays bigger ultimate load, stronger initial stiffness and more better ductility of structure; the order of plastic hinge is more helpful to achieve the strong-joint. And it is an efficient structural system resisting earthquakes.
出处
《工程抗震与加固改造》
北大核心
2014年第3期54-59,共6页
Earthquake Resistant Engineering and Retrofitting
基金
陕西省教育厅项目(02js29)
关键词
PUSH-OVER方法
静力弹塑性分析
小角度斜柱转换
塑性铰
push-over analysis
elasto-plastic static analysis
small angle inclined column-shaped transfer structure
plastic hinge
