| 高层剪力墙建筑楼板板角斜裂缝成因分析及控制 |
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| 引用本文： | 陈军.高层剪力墙建筑楼板板角斜裂缝成因分析及控制[J].福建建设科技,2010(4):41-42,37. |
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| 作者姓名： | 陈军 |
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| 作者单位： | 福建省高速公路有限责任公司福州管理分公司,350001 |
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| 摘 要： | 本文通过对某小区高层剪力墙建筑典型开裂楼板温差作用下的有限元计算,分析了楼板板角45°斜裂缝形成的受力机理,阐述剪力墙墙体与楼板混凝土的收缩差及因环境温度变化在楼板中所引起的温度收缩应力是板角开裂的主要原因,并提出温度裂缝控制的设计和施工建议。
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| 关 键 词： | 斜裂缝 现浇板 温度应力 收缩应力 裂缝控制 |
Analysis and Control for Diagonal Cracks in the Cast-in-place Concrete Slabs of High-rise Shear-wall Structure |
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| Chen Jun.Analysis and Control for Diagonal Cracks in the Cast-in-place Concrete Slabs of High-rise Shear-wall Structure[J].Fujian Construction Science & Technology,2010(4):41-42,37. |
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| Authors: | Chen Jun |
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| Abstract: | In this paper,the finite element model is established to analysis the reason and the force-mechanism of the 45°diagonal cracks in the cast-in-place slab of high-rise shear-wall structure.The conclusion that the temperature shrinkage stress caused by concrete shrinkage and temperature difference between the walls and floors is the main reason for cracks is obtained.And then,Some corresponding suggestions on crack-control are recommended. |
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| Keywords: | inclined cracks cast-in-place concrete slab temperature stress shrink stress cracks control |
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