受压区钢筋锈蚀对混凝土构件承载力影响的研究  

RESEARCH ON THE INFLUENCE CF STEEL CORROSION IN THE COMPRESSIVE ZONE TO THE STRUCTURE CARRYING CAPACITY

作　　者：马亚丽[1] 王东威 

机构地区：[1]郑州航空工业管理学院,郑州450015 [2]河南省交通规划勘察设计院,郑州450052

出　　处：《建筑技术开发》2007年第12期71-74,58,共5页Building Technology Development

摘　　要：从受压钢筋锈蚀引起混凝土抗压强度下降的角度,研究了受压区钢筋锈蚀的混凝土构件的受弯承载力,提出了受压区钢筋锈蚀的混凝土构件承载力的计算模型和计算方法。理论分析计算表明,受压区钢筋锈蚀对混凝土构件性能的影响在锈蚀开裂前较为明显,锈蚀开裂后影响不大。提出的受压区钢筋锈蚀开裂前后的承载力计算模型,可为锈蚀钢筋混凝土构件承载力可靠性分析提供理论基础。Form view point of decline compression strength caused steel corrosion, bending carrying capacity for the concrete member with corroded steel bar in compressive zone is researched, the calculation model and method of concrete member is provided. The theoretical analysis indicates that the influence of the corrosion of steel bar to concrete strength before cracking is quite dramatic, while it doesn＇t change so much after cracking. The calculation model for the carrying capacity of concrete members before and after cracking can provide a sound basis for the analysis of carrying capacity and residual life prediction for concrete members with corroded steel bar.

关 键 词：受压钢筋 锈蚀 承载力 抗压强度 

分 类 号：TU312[建筑科学—结构工程]