短柱型破坏的型钢混凝土-混凝土转换柱剪切受力性能研究

伍凯; 薛建阳; 赵鸿铁

doi:10.13204/j.gyjz201011014

短柱型破坏的型钢混凝土-混凝土转换柱剪切受力性能研究

doi: 10.13204/j.gyjz201011014

1.
1. 西安建筑科技大学土木工程学院,西安710055;
2.
2. 河海大学土木与交通学院,南京210098

基金项目:

国家自然科学基金项目(50978217);教育部高等学校博士学科点专项科研基金(20096120110005);陕西省教育厅自然科学专项基金项目(09JK551)

详细信息

作者简介:
伍凯，男，1980年出生，博士，讲师。E－mail:wukai19811240@yahoo.com.cn

中图分类号: TU398.9
计量
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- 被引次数: 0
出版历程
- 收稿日期: 2009-12-17
- 刊出日期: 2010-11-20

STUDY ON SHEAR PERFORMANCE OF SRC-RC TRANSFER COLUMN WITH SHORT COLUMN FAILURE PATTERN

1.
1. College of Civil Engineering,Xi’an University of Architecture &Technology,Xi’an 710055,China;
2.
2. College of Civil Transportation Engineering,Hohai University,Najing 210098,China

摘要

摘要: 型钢混凝土-混凝土(SRC-RC)转换柱容易产生短柱型剪切破坏，此类剪切破坏类似于钢筋混凝土短柱的剪切破坏，剪切斜裂缝贯通整个钢筋混凝土部分。以7个SRC-RC转换柱试件和2个钢筋混凝土对比试件的低周反复荷载试验为基础，建立了受力模型用于分析短柱型剪切破坏形态和机理以及产生此类破坏的内在因素。产生短柱型剪切破坏转换柱试件的滞回曲线呈现倒S形，捏拢现象明显，刚度随着循环次数的增加退化迅速。采用箍筋加密措施能够有效改善转换柱的抗震性能，使其表现出较钢筋混凝土柱更好的抗剪承载力和延性。
- 型钢混凝土 /
- 钢筋混凝土 /
- 过渡层 /
- 柱 /
- 间接荷载
Abstract: Shear failure occurs easily on SRC-RC transfer columns,which looks like failure pattern of short RC column,shear crack runs through the whole reinforced concrete.Shear pattern and failure mechanism are analyzed based on established shear model of SRC-RC transfer column which comes from 9 specimens,including 7 SRC-RC transfer columns and 2 RC columns,all specimens are tested under low cyclic reversed loading.Hysteretic performance of SRC-RC transfer columns with shear cracking failure show serious pinch effect,rigidity dearades rapidly with increasing amount of cycles.More stirrups can improve the seismic resistance performance of SRC-RC transfer columns,the shear capacity and displacement ductility of SRC-RC transfer columns are better than those of RC columns.
- steel reinforced concrete /
- reinforced concrete /
- transfer story /
- column /
- indirect loading