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首页> 外文会议>International conference on structural engineering, mechanics and computation;SEMC 2010 >Prediction of whole process of concrete cracking under combined steel corrosion and service load
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Prediction of whole process of concrete cracking under combined steel corrosion and service load

机译：组合钢腐蚀和使用载荷下混凝土开裂的全过程预测

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As a global problem for reinforced concrete structures located in chloride and/or carbon dioxidernladen environment, the reinforcing steel corrosion in concrete costs around $100 billion per annum world-widernfor the maintenance and repairs primarily of premature concrete cracking and spalling. The continual demandsrnfor greater load for infrastructure only exacerbate the problem. This paper attempts to examine the whole processrnof cracking in concrete structures under the combined effect of reinforcing steel corrosion and applied load.rnFrom the worked example it is found that the corrosion rate is the most important single factor that affects bothrnthe time to surface cracking and crack width growth. The paper concludes that the developed model is one ofrnvery few models that can predict with reasonable accuracy the crack width on the surface of reinforced concreternstructures under the combined effect of steel corrosion and service load.
机译：作为位于氯化物和/或二氧化碳环境中的钢筋混凝土结构的全球性问题，钢筋在混凝土中的腐蚀每年在全世界范围内的维护和修理主要是过早的混凝土开裂和剥落的费用约为1000亿美元。对基础设施的更大负载的持续需求只会加剧该问题。本文试图研究在钢筋腐蚀和外加载荷共同作用下混凝土结构的全过程开裂。从工作实例中发现，腐蚀速率是影响表面开裂和开裂时间的最重要的单一因素。宽度增长。本文得出的结论是，所开发的模型是能够在钢腐蚀和使用载荷共同作用下，以合理的精度预测钢筋混凝土结构表面裂缝宽度的极少数模型之一。

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