[1]吴方伯,欧阳靖,周绪红,等.免模剪力墙恢复力模型试验研究[J].地震工程与工程振动,2019,39(02):009-17.[doi:10.13197/j.eeev.2019.02.9.wufb.002]
 WU Fangbo,OUYANG Jing,ZHOU Xuhong,et al.Experimental study of restoring force model for non-template shear wall[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(02):009-17.[doi:10.13197/j.eeev.2019.02.9.wufb.002]
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免模剪力墙恢复力模型试验研究
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年02
页码:
009-17
栏目:
论文
出版日期:
2019-04-30

文章信息/Info

Title:
Experimental study of restoring force model for non-template shear wall
作者:
吴方伯 欧阳靖 周绪红 张高波
湖南大学 土木工程学院, 湖南 长沙 410082
Author(s):
WU Fangbo OUYANG Jing ZHOU Xuhong ZHANG Gaobo
College of Civil Engineering, Hunan University, Changsha 410082, China
关键词:
剪力墙预制侧模骨架曲线刚度退化恢复力模型
Keywords:
shear wallprefabricated templateskeleton curvestiffness degradationrestoring force model
分类号:
TU312+.1;TU973+.16
DOI:
10.13197/j.eeev.2019.02.9.wufb.002
文献标志码:
A
摘要:
本文通过8片免模剪力墙与1片现浇剪力墙低周反复加载试验,研究了免模墙体的抗震性能,比较了裂缝开展规律和破坏特征上与现浇墙体的异同。试验结果表明:除保温侧外,免模墙体裂缝开展与现浇墙体类似,破坏时预制模与核心现浇混凝土在塑性铰区域压溃程度有明显差别,保温墙体两侧预制模压溃程度也不一致;根据试验现象,建立了考虑不同加载阶段预制侧模参与工作程度的四折线骨架曲线特征点的计算方法,根据屈服后实测的各级滞回曲线滑移与捏拢等形状特征,建立了考虑刚度退化、强度退化及滑移的滞回规则。计算结果表明:计算特征点与实测特征点较为接近,模拟滞回曲线能很好的反映实测滞回曲线的规律。本文提出的恢复力模型作为免模剪力墙进行弹塑性动力分析的依据是合理的。
Abstract:
In this paper, the seismic performance of 8 non-template shear walls and cast-in-situ shear wall is studied through the low cycle loading test. Characteristics of cracks and failure are compared with 1 cast-in-situ shear wall. The test results show that except for the insulation side, the crack of non-template wall is similar to the cast-in-situ wall. The failure degree of precast parts and core concrete in plastic hinge region is obviously different when destroyed, the insulation side and non-insulation side is also different. According to test phenomenon. a method for calculating the characteristic points of four broken line skeleton curves is established which takes account of degree of participation of precast parts. The hysteretic rules which takes account of stiffness degradation, strength degradation and slip are established according to the shape characteristics of slip and pinch on cycles after yielding. The calculation results show that the calculated characteristic points are closer to the measured characteristic points, and the simulated hysteretic curves can well reflect measured hysteresis curves. The restoring force model proposed in this paper si reasonable for elastic-plastic dynamic analysis of non-template shear wall.

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备注/Memo

备注/Memo:
收稿日期:2018-7-5;改回日期:2018-12-11。
基金项目:国家重点研发计划(2016YFC0701308)
作者简介:吴方伯(1959-),男,教授,硕士,主要从事高层建筑结构设计理论与钢筋混凝土构件基本性能研究.E-mail:wfbprof@163.com
通讯作者:欧阳靖(1989-),男,博士研究生,主要从事砌体结构与混凝土结构基本理论及结构抗震性能研究.E-mail:ouyangjing0313@163.com
更新日期/Last Update: 2019-05-13