土木工程学报
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配置斜筋的单排配筋混凝土低矮剪力墙动力性能试验研究
张建伟  郑文彬  曹万林  董宏英
北京工业大学城市与工程安全减灾教育部重点实验室,北京100124
Dynamic performance test of low-rise concrete shear wall with single layer of web reinforcement and inclined steel bars
Zhang Jianwei  Zheng Wenbin  Cao Wanlin  Dong Hongying
Key Laboratory of Urban and Engineering Security Disaster of the Ministry of Education, Beijing University of Technology, Beijing 100124, China
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摘要 在单排配筋混凝土低矮剪力墙的墙体或底部配置斜筋,可限制墙体斜裂缝开展,提高剪力墙的基底抗剪切滑移能力,改善其抗震性能。为了解不同斜筋布置形式对其动力性能与地震损伤破坏机理的影响,进行了3个不同配筋形式的混凝土低矮剪力墙模型振动台试验,包括1个普通单排配筋混凝土剪力墙,1个墙体内配置45°斜筋的单排配筋混凝土剪力墙,1个墙体底部配置45°斜筋的单排配筋混凝土剪力墙。在试验基础上,分析了3个剪力墙模型在弹性、开裂及弹塑性损伤破坏等不同受力阶段的自振特性与地震反应,比较了其破坏形态和加速度、位移时程反应。研究结果表明,配置斜筋能有效地提高单排配筋混凝土低矮剪力墙的抗震能力。
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张建伟 郑文彬 曹万林 董宏英
关键词 斜筋单排配筋低矮剪力墙动力性能振动台试验抗震破坏机理    
Abstract

 For the low-rise concrete shear wall with single layer of web reinforcement, the configuration of the inclined steel bars in the web or at the bottom of wall can limit horizontal shear slip at the bottom construction joints and development of diagonal cracks on the wall,resulting in the seismic performance of wall improved. In order to investigate the influence of different arrangement of inclined steel bars on the dynamic performance and seismic damage mechanism of wall, three shaking table tests of low-rise concrete shear wall models with different reinforcement arrangements were carried out, including a wall only with single layer web reinforcement, a wall with single layer of web reinforcement and 45° inclined steel bars in the web, and a wall with single layer of web reinforcement and 45° inclined steel bars at the bottom. Based the test, the dynamic characteristics, dynamic response and failure mode of each model under elastic and elastic-plastic deformation stages were compared and analyzed. The results show that the configuration of inclined steel bars can effectively improve the seismic capacity of low-rise concrete shear wall with single layer of web reinforcement.

Key wordsinclined steel bars    low-rise concrete shear wall with single layer of web reinforcement    dynamic performance    shaking table test    seismic damage mechanism
    
引用本文:   
张建伟 郑文彬 曹万林 董宏英. 配置斜筋的单排配筋混凝土低矮剪力墙动力性能试验研究[J]. 土木工程学报, 2018, 51(S1): 65-71.
Zhang Jianwei Zheng Wenbin Cao Wanlin Dong Hongying. Dynamic performance test of low-rise concrete shear wall with single layer of web reinforcement and inclined steel bars. 土木工程学报, 2018, 51(S1): 65-71.
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http://manu36.magtech.com.cn/Jwk_tmgcxb/CN/     或     http://manu36.magtech.com.cn/Jwk_tmgcxb/CN/Y2018/V51/IS1/65
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