摘要
钢筋混凝土框架柱作为高层房屋建筑的主要承重构件,在历次地震中因框架脆性剪切破坏而造成结构严重损坏甚至倒塌的现象十分常见。本文通过分析有关试验资料,提出了钢筋混凝土框架柱塑性铰区剪切强度的计算公式及有关构造措施,以保证框架柱在一定延性条件下具有足够的抗剪强度,实现“强剪弱弯”的抗震设计原则,使抗震设计的框架结构具有足够的强度和良好的延性,以配合混凝土结构设计规范(GBJ10-89)的修订工作。本文的主要结论已被规范(GBJ10-2000)修订所采纳。
Reinforced concrete columns are main load-bearing members in multi-sorties and highrise buildings. Frame colunms may be destroyed(or even collapsed) due to shear failure with little ductility in earthquake. To guarantee columns' shear capacity and effective ductility,based on study of some test data, a formula is put forward to access columns' shear capacity. Some suggestions are given for revising The Concete Structures Design Code(GB10- 89). The main idea of the paper was adopted by the code(GBJ10- 89).
出处
《世界地震工程》
CSCD
2000年第2期52-56,共5页
World Earthquake Engineering
基金
国家标准技术课题
国家教委博士学科点专项基金
关键词
钢筋混凝土
框架柱
抗震设计
抗剪强度
承载力
reinforced concrete
frame column
seismic design
plastic hinge region
shear Strength
cyclic load