| 后张预应力混凝土平板-柱工程平板塌陷与复位 |
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| 引用本文： | 郑文忠,周威.后张预应力混凝土平板-柱工程平板塌陷与复位[J].哈尔滨工业大学学报,2004,36(4):463-467. |
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| 作者姓名： | 郑文忠 周威 |
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| 作者单位： | 哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090;哈尔滨工业大学,土木工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金资助项目(50178026). |
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| 摘 要： | 某后张预应力混凝土平板-柱结构工程，在浇筑一层顶板混凝土的过程中，负一层顶板部分区域陆续出现不同程度的塌陷，在板柱节点处板相对于柱下沉最大达100mm，板格中心相对于柱下沉最大达220mm．分析了引起预应力混凝土平板塌陷的原因，提出了将板复位的方法及过程，给出了加固补强方案，可供处理同类工程事故时参考．
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| 关 键 词： | 预应力混凝土 平板 柱 塌陷 复位与加固 |
| 文章编号： | 0367-6234(2004)04-0463-05 |
| 修稿时间： | 2003年12月2日 |
Reposition and reinforcement of subsidence for flat slabs of a post-prestressed concrete flat slab-column construction |
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| ZHENG Wen-zhong,ZHOU Wei.Reposition and reinforcement of subsidence for flat slabs of a post-prestressed concrete flat slab-column construction[J].Journal of Harbin Institute of Technology,2004,36(4):463-467. |
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| Authors: | ZHENG Wen-zhong ZHOU Wei |
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| Abstract: | Post-prestressed concrete flat slab-column system was applied in a one-story mart. While concrete is placed on the first floor, partlial slab on the top of the underground first story has subsided in succession to different extents. In comparison with the column, the maximum subsidence of slab neighboring slab-column connection is 100 mm, and the maximum subsidence in the center of the panel is 220 mm. The cause for subsidence of prestressed concrete slab is analyzed, and the method for reposition of the slab is presented. Furthermore, the procedure of reposition is introduced, and a reinforcing scheme is proposed. It can be used as a reference to deal with the same construction accident. |
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| Keywords: | prestressed concrete flat slab column subsidence reposition and reinforcement |
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