[1]肖全东,郭正兴.装配式混凝土双板剪力墙低周反复荷载试验[J].东南大学学报(自然科学版),2014,44(4):826-831.[doi:10.3969/j.issn.1001-0505.2014.04.026]
 Xiao Quandong,Guo Zhengxing.Low-cyclic reversed loading test for double-wall precast concrete shear walls[J].Journal of Southeast University (Natural Science Edition),2014,44(4):826-831.[doi:10.3969/j.issn.1001-0505.2014.04.026]
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装配式混凝土双板剪力墙低周反复荷载试验()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
44
期数:
2014年第4期
页码:
826-831
栏目:
土木工程
出版日期:
2014-07-16

文章信息/Info

Title:
Low-cyclic reversed loading test for double-wall precast concrete shear walls
作者:
肖全东12郭正兴1
1东南大学土木工程学院, 南京 210096; 2湖南科技大学土木工程学院, 湘潭 411201
Author(s):
Xiao Quandong12 Guo Zhengxing1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
关键词:
装配式混凝土双板剪力墙 低周反复荷载 剪跨比 边缘构件
Keywords:
double-wall precast concrete shear wall low-cyclic reversed loading shear span ratio boundary element
分类号:
TU317.1;TU398.2
DOI:
10.3969/j.issn.1001-0505.2014.04.026
摘要:
为了研究装配式混凝土双板(DWPC)剪力墙的抗震性能,在轴压比为0.1的条件下,对3组具有不同剪跨比和边缘构件配筋率的6个DWPC剪力墙和3个现浇剪力墙的足尺比例试件进行低周反复荷载试验.结果表明,DWPC剪力墙具有良好的整体工作性能;在边缘构件上设置连续复合螺旋箍能改善DWPC剪力墙的承载力、刚度及耗能能力,减缓其刚度退化;随着边缘构件配筋率的增加,DWPC剪力墙的承载力和刚度增大;经过构造改进的DWPC剪力墙具有良好的弹塑性变形能力和耗能能力;DWPC剪力墙的等效黏滞阻尼系数在试件屈服前与现浇剪力墙相近,在屈服后略低于现浇试件;DWPC剪力墙剪跨比越大,其耗能能力越接近同类现浇试件.
Abstract:
To study the seismic behavior of double-wall precast concrete(DWPC)shear walls, three kinds of full scale specimens with different shear span ratios and vertical reinforcing bar ratios of boundary elements, including six DWPC shear walls and three normal cast-in-situ shear walls, are tested under low-cyclic reversed loading with axial compression ratio of 0.1. The test results show that the DWPC shear walls can work together well. Installation of continuous compound spiral stirrups in the boundary element can improve the bearing capacity, stiffness, seismic energy dissipation of the DWPC shear walls and weaken the stiffness degradation. With the increase of the vertical reinforcing bar ratio of the boundary element, both the bearing capacity and the stiffness increase. The improved DWPC shear walls have satisfactory elastic-plastic deformation capacity and energy dissipation capacity. The equivalent viscous damping coefficients of DWPC specimens are almost the same as those of cast-in-situ specimens within the elastic range while being a little lower beyond the elastic range. Moreover, the seismic energy dissipation capacities of the DWPC specimens approach to those of cast-in-situ specimens with the increase of the shear span ratio.

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备注/Memo

备注/Memo:
收稿日期: 2013-12-28.
作者简介: 肖全东(1981—),男,博士生;郭正兴(联系人),男,教授,博士生导师,guozx195608@126.com.
基金项目: “十二五”国家科技支撑计划资助项目(2011BAJ10B03)、中央高校基本科研业务费专项资金资助项目(2242014Y10030)、江苏省普通高校研究生科研创新计划资助项目(CXLX13_105)、江苏省产学研前瞻性联合研究资助项目(BY2012204).
引用本文: 肖全东,郭正兴.装配式混凝土双板剪力墙低周反复荷载试验[J].东南大学学报:自然科学版,2014,44(4):826-831. [doi:10.3969/j.issn.1001-0505.2014.04.026]
更新日期/Last Update: 2014-07-20