| 引用本文: | 李瑞森,郑文忠,姜智盛,郭常顺,王英.对混凝土剪力墙静态破碎效果的试验研究[J].哈尔滨工业大学学报,2021,53(10):23.DOI:10.11918/202102071 |
| LI Ruisen,ZHENG Wenzhong,JIANG Zhisheng,GUO Changshun,WANG Ying.Experimental study on static crushing effect of concrete shear walls[J].Journal of Harbin Institute of Technology,2021,53(10):23.DOI:10.11918/202102071 |
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| 对混凝土剪力墙静态破碎效果的试验研究 |
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李瑞森1,2,郑文忠1,2,姜智盛1,2,郭常顺1,2,王英1,2
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(1.结构工程灾变与控制教育部重点实验室(哈尔滨工业大学),哈尔滨 150090; 2.土木工程智能防灾减灾工业和信息化部重点实验室(哈尔滨工业大学),哈尔滨 150090)
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| 摘要: |
| 为考察成孔方式、剪力墙厚度等对混凝土剪力墙静态破碎效果的影响,开展了9片混凝土剪力墙试件的静态破碎试验。采用倾斜向下斜交于墙片侧面打孔、注入静态破碎剂进行破碎和竖直向下垂直于墙片顶面打孔、注入静态破碎剂进行破碎这两种破碎方案。为提高破碎效果,在墙片侧面打孔后用锯片切断钻孔侧的竖向分布钢筋,在墙片顶面打孔后用锯片切断两侧的水平分布钢筋。试验结果表明:采用这两种破碎方案,破碎后产生的块体短边尺寸为孔间距或者孔边距；倾斜向下斜交于墙片侧面打孔并注入静态破碎剂后,试件的割缝平均宽度随墙片厚度的增加逐渐增大；竖直向下垂直于墙片顶面打孔并注入静态破碎剂后,试件的割缝平均宽度与墙厚无关；破碎效果的先后顺序为:竖直向下垂直于墙片顶面打孔并切断两侧水平分布钢筋＞竖直向下垂直于墙片顶面打孔不切断钢筋＞倾斜向下斜交于墙片侧面打孔并切断钻孔侧竖向分布钢筋。 |
| 关键词: 静态破碎 混凝土剪力墙 墙厚 切断钢筋 破碎效果 |
| DOI：10.11918/202102071 |
| 分类号:TU746 |
| 文献标识码:A |
| 基金项目:国家重点研发计划(2017YFC0806100) |
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| Experimental study on static crushing effect of concrete shear walls |
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LI Ruisen1,2,ZHENG Wenzhong1,2,JIANG Zhisheng1,2,GUO Changshun1,2,WANG Ying1,2
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(1.Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology), Ministry of Education, Harbin 150090, China; 2.Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters (Harbin Institute of Technology), Ministry of Industry and Information Technology, Harbin 150090, China)
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| Abstract: |
| To investigate the influence of hole forming methods and the thickness of shear wall on the static crushing effect of concrete shear walls, static crushing tests of nine concrete shear wall specimens were carried out. Two crushing methods were adopted: one is drilling holes on the side of the wall obliquely downwards and injecting static crushing agent for crushing, and the other is drilling holes perpendicular to the top surface of the wall and injecting static crushing agent for crushing. In order to improve the crushing effect, the vertically distributed steel bars on the side of the wall were cut off with a saw blade after drilling on the side of the wall, and the horizontally distributed steel bars on both sides of the wall were cut off with the saw blade after drilling on the top of the wall. Test results show that with these two crushing schemes, the short side size of the block produced after crushing was the hole spacing or hole edge spacing. After injecting static crushing agent, with the increment of the wall thickness, the average width of the slits of the specimens drilled obliquely on the side increased, while for the specimens drilled vertically on the top surface, the average width of the slits had no obvious correlation with the wall thickness. The order of the crushing effect was: drilling holes on the top of the wall vertically and cutting off the horizontally distributed steel bars> drilling holes on the top of the wall without cutting the steel bars> drilling holes on the side of the wall obliquely downwards and cutting off the vertically distributed steel bars. |
| Key words: static crushing concrete shear wall wall thickness cutting steel bars crushing effect |
