核岛结构双钢板混凝土组合剪力墙抗侧刚度

发布时间：2018-01-12 08:15

本文关键词：核岛结构双钢板混凝土组合剪力墙抗侧刚度　出处：《湖南大学学报(自然科学版)》2017年11期 　论文类型：期刊论文

【摘要】：为研究核岛屏蔽厂房结构在地震作用下的抗侧力能力,对9个1∶5缩尺比的双钢板混凝土组合剪力墙试件进行了低周往复拟静力试验,分析研究了栓钉间距、钢板厚度和加劲肋的设置等因素对剪力墙试件初始抗侧刚度的影响.研究结果表明:栓钉间距对剪力墙试件初始刚度的影响不明显,剪力墙初始抗侧刚度随着钢板厚度的增大和加劲肋的设置而有所提高.对试件进行理论假设和简化处理,利用单位荷载法推导出双钢板混凝土组合剪力墙试件初始抗侧刚度的计算公式,通过比较发现计算值和试验值吻合较好.研究了剪力墙试件在往复加载过程中抗侧刚度的变化过程,发现不同阶段的抗侧刚度在变化幅度上有差别.
[Abstract]:In order to study the lateral force resistance of the nuclear island shielded powerhouse structure under earthquake, the low cycle reciprocating pseudo-static test was carried out on 9 specimens of double steel plate concrete composite shear wall with the ratio of 1: 5 scale, and the pin spacing was analyzed and studied. The effect of steel plate thickness and stiffening rib on the initial lateral stiffness of shear wall specimen is studied. The results show that the effect of the spacing of bolt on the initial stiffness of shear wall specimen is not obvious. The initial lateral stiffness of shear wall increases with the increase of steel plate thickness and the setting of stiffener. By using the unit load method, the formula for calculating the initial lateral stiffness of the specimens of double-plate concrete composite shear walls is derived. It is found that the calculated and experimental values are in good agreement with each other. The variation process of anti-lateral stiffness of shear wall specimens during reciprocating loading is studied. It is found that there are differences in the range of anti-lateral stiffness in different stages.
【作者单位】：北京工业大学建筑工程学院;中国地震局地球物理研究所;
【基金】：国家自然科学基金资助项目(51738001,51421005) 国家科技重大专项(2013ZX06002001)~~
【分类号】：TU398.2
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