单排配筋L形截面剪力墙振动台试验研究
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摘要
为了解配筋形式对单排配筋L形截面混凝土剪力墙在非工程轴方向的抗震能力影响,进行了2个单排配筋L形截面剪力墙模型的振动台试验,1个为普通单排配筋剪力墙,1个为带斜筋单排配筋剪力墙,2个剪力墙模型的总配筋量相同。通过在L形截面剪力墙的非工程轴方向输入El-Centro地震波,测试比较2个剪力墙模型在弹性、开裂及破坏阶段的动力特性、地震反应与破坏特征,分析不同配筋形式下L形截面混凝土剪力墙在非工程轴方向的抗震能力,结果表明,带斜筋与不带斜筋的单排配筋L形截面混凝土剪力墙在非工程轴方向均有良好的抗震性能,能够满足低多层建筑结构的抗震设计要求。
In order to investigate the influence of different reinforcement arrangements on the aseismic capacity of L-shaped shear walls with a single layer of web reinforcements along the non-engineering-axis direction, two shaking table tests of L-shaped shear wall models with a single layer of web reinforcements were carried out. One is the shear wall with a single layer of web reinforcements and another is the shear wall with both a single layer of web reinforcements and inclined steel bars. The total reinforecment ratio of two shear wall models is the same. With inputted the seismic wave of El-Centro along the non-engineering-axis direction of L-shaped shear walls, the dynamic characteristics, the dynamic response and failure mode of each model under elastic, the crack and failure stages were measured and compared, also the aseismic capacity of L-shaped concrete shear walls along the non-engineering-axis direction was analyzed. The results show that L-shaped shear walls with inclined steel bars or without both have good aseismic performance along the non-engineering-axis direction and they can meet the aseismic design requirements of low or multi-layer building structures.
In order to investigate the influence of different reinforcement arrangements on the aseismic capacity of L-shaped shear walls with a single layer of web reinforcements along the non-engineering-axis direction, two shaking table tests of L-shaped shear wall models with a single layer of web reinforcements were carried out. One is the shear wall with a single layer of web reinforcements and another is the shear wall with both a single layer of web reinforcements and inclined steel bars. The total reinforecment ratio of two shear wall models is the same. With inputted the seismic wave of El-Centro along the non-engineering-axis direction of L-shaped shear walls, the dynamic characteristics, the dynamic response and failure mode of each model under elastic, the crack and failure stages were measured and compared, also the aseismic capacity of L-shaped concrete shear walls along the non-engineering-axis direction was analyzed. The results show that L-shaped shear walls with inclined steel bars or without both have good aseismic performance along the non-engineering-axis direction and they can meet the aseismic design requirements of low or multi-layer building structures.
引文
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[3]杨兴民,曹万林,张建伟,等.三层单排配筋剪力墙结构抗震性能试验研究[J].地震工程与工程振动,2009,29(2):92―97.Yang Xingmin,Cao Wanlin,Zhangjianwei,et al.Experimental study on seismic performance of a threelayer shear wall structure with single row of steel bars[J].Journal of Earthquake Engineering&Engineering Vibration,2009,29(2):92―97.(in Chinese)
[4]张彬彬,曹万林,张建伟,等.双向单排配筋L形剪力墙抗震性能试验研究[J].工程抗震与加固改造,2011,33(5):37―44,57.Zhang Binbin,Cao Wanlin,Zhang Jianwei,et al.Experimental Study on Seismic Performance of L-shear Wall Structure with Bidirectional Single Row of Steel Bars[J].Earthquake Resistant Engineering and Retrofitting,2011,33(5):37―44,57.(in Chinese)
[5]GB 50011―2010,建筑抗震设计规范[S].北京:中国建筑工业出版社,2010.GB 50011―2010,Code for seismic design of buildings[S].Beijing:China Architecture and Building Press,2010.(in Chinese)
[6]JGJ3―2010,高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2010.JGJ3―2010,Technical specification for concrete structures of tall building[S].Beijing:China Architecture and Building Press,2011.(in Chinese)
[7]张建伟,杨兴民,曹万林,等.带斜筋单排配筋低矮剪力墙的抗震性能[J].工程力学,2016,33(增刊1):125―132.Zhang Jianwei,Yang Xingmin,Cao Wanlin,et al.Seismic performance of low-rise shear wall with single layer of web reinforcement and inclined steel bars[J].Engineering Mechanics,2016,33(Suppl 1):125―132.(in Chinese)
[8]张建伟,蔡翀,曹万林,等.带斜筋单排配筋中高剪力墙抗震性能试验研究[J].北京工业大学学报,2016,42(11):1681―1690.Zhang Jianwei,Cai Chong,Cao Wanlin,et al.Research of Seismic Behavior of Mid-rise RC Shear Wall With Single Row of Steel Bars and Inclined Reinforcement[J].Journal of Beijing University of Technology,2016,42(11):1681―1690.(in Chinese)
[9]张建伟,吴蒙捷,曹万林,等.配置斜筋单排配筋混凝土双肢剪力墙抗震性能试验研究[J].建筑结构学报,2016,37(5):201―207.Zhang Jianwei,Wu Mengjie,Cao Wanlin,et al.Experimental study on seismic performance of R C coupled shear walls with single row of steel bars and inclined reinforcement[J].Journal of Building Structures,2016,37(5):201―207.(in Chinese)
[10]张建伟,曹万林,殷伟帅.简化边缘构造的单排配筋中高剪力墙抗震性能试验研究[J].土木工程学报,2009,42(12):99―104.Zhang Jianwei,Cao Wanlin,Yin Weishuai.Study on seismic performance of mid-rise RC shear wall with single row of steel bars and simplified boundary elements[J].China Civil Engineering Journal.2009,42(12):99―104.(in Chinese)
[11]Park Y J,Ang H S,Wen Y K.Damage-Limiting Aseismic Design of Buildings[J].Earthquake Spectra,1987,3(1):1―26.