装配式混凝土双板剪力墙低周反复荷载试验

发布时间：2018-02-02 16:41

本文关键词： 装配式混凝土双板剪力墙低周反复荷载剪跨比边缘构件　出处：《东南大学学报(自然科学版)》2014年04期 　论文类型：期刊论文

【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]:In order to study the seismic behavior of prefabricated concrete double-slab DWPC shear wall, the axial compression ratio is 0.1. Three groups of full-scale shear wall specimens with different shear span ratio and reinforcement ratio of edge members were tested on full-scale scale shear walls with three cast-in-place shear walls and six DWPC shear walls with different shear span ratios. The results show that the test results are as follows: 1. DWPC shear wall has good overall performance. The continuous composite helical hoop on the edge member can improve the bearing capacity, stiffness and energy dissipation ability of DWPC shear wall, and reduce its stiffness degradation. The bearing capacity and stiffness of DWPC shear wall increase with the increase of reinforcement ratio of edge member. The improved DWPC shear wall has good elastic-plastic deformation capacity and energy dissipation ability. The equivalent viscous damping coefficient of DWPC shear wall is similar to that of cast-in-place shear wall before the specimen yield and is slightly lower than that of cast-in-place specimen after yielding. The larger the shear span ratio of DWPC shear wall is, the closer its energy dissipation capacity is to similar cast-in-place specimens.
【作者单位】：东南大学土木工程学院;湖南科技大学土木工程学院;
【基金】：“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)
【分类号】：TU317.1;TU398.2
【正文快照】： 近年来,装配式混凝土结构的新形式及建造新技术不断涌现,高层建筑中的装配式混凝土剪力墙http://journal.seu.edu.cn结构技术得到了广泛关注[1].国内学者对装配式混凝土剪力墙中的全套筒灌浆连接技术[2]、约束浆锚钢筋搭接连接技术[3]、金属波纹管浆锚搭接连接技术[4-6]和叠合

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