| 变形裂缝的机理分析和控制技术 |
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| 引用本文： | 潘金炎. 变形裂缝的机理分析和控制技术[J]. 混凝土, 2005, 0(10): 28-30 |
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| 作者姓名： | 潘金炎 |
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| 作者单位： | 浙江省建筑科学设计研究院,浙江杭州310012 |
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| 摘 要： | 首先介绍了温度收缩应力的基本概念和计算公式，然后，根据对影响温度收缩应力的几个因素的分析，说明了设置伸缩缝间距不能完全阻止裂缝出现的道理，最后阐述了裂缝控制的技术和方法。文中还强调指出：在研究由变形变化引起的应力状态时，应力松弛是必须加以考虑的因素。
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| 关 键 词： | 变形裂缝 温度收缩应力 伸缩缝 应力松弛 |
| 文章编号： | 1002-3550（2005）10-0028-03 |
| 收稿时间： | 2005-09-09 |
| 修稿时间： | 2005-09-09 |
Mechanism analysis and control on crack caused by distortion |
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| PAN Jin-yan. Mechanism analysis and control on crack caused by distortion[J]. Concrete, 2005, 0(10): 28-30 |
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| Authors: | PAN Jin-yan |
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| Affiliation: | Zhejiang Research Institute of Building Sciences, Hangzhou 310012, China |
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| Abstract: | It is introduced for basic concept and calculation formula of temperature shrinkage stress.Based on the analysis about some effecting factors on temperature shrinkage stress,it indicates that the crack can't totally be prevented by spacing distance between expansion joints.The conclusion shows the principle and method for crack-control.It is proposed that the stress relation is a main factor in stress state caused by changing distortion. |
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| Keywords: | distortion crack temperature shrinkage stress expansion joint stress relaxation |
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