腐蚀钢筋混凝土构件斜截面承载能力分析  

Shear Capacity Analysis of Corroded Reinforced Concrete Beam

作　　者：夏晓慧[1] 刘小平 聂美春 

机构地区：[1]湖南交通职业技术学院,湖南长沙410004 [2]桂武高速公路建设开发有限公司,湖南郴州423000

出　　处：《公路工程》2012年第5期70-72,91,共4页Highway Engineering

摘　　要：钢筋混凝土构件中箍筋腐蚀对其承载力的影响不容忽视,针对目前开展斜截面受力性能研究较少的情况,以无腹筋梁的梁拱作用共同抗剪理论为基础,进一步扩展到有腹筋梁,研究了箍筋锈蚀对钢筋混凝土构件开裂荷载和斜截面承载能力的影响,综合考虑现有试验,发展了箍筋锈蚀后的构件抗剪承载力计算方法,并将理论值和试验值进行了对比。结果表明:箍筋腐蚀对钢筋混凝土构件开裂荷载的影响并不是简单的线性增长关系;由本文方法得出的计算值与试验结果较为接近,可为相关研究提供一定的参考。The effects of stirrups corrosion on capacity of reinforced concrete beam can not be ig- nored, and few studies involve shear capacity. This paper based on the shear mechanical of reinforced concrete member without web reinforcements, and further extended to the abdominal beams. The effects of stirrups corrosion on crack-load and shear capacity are analyzed. Combined the previous experimental studies, the computation method of shear capacity with stirrups corrosion of reinforced concrete is devel- oped. The results show that stirrups corrosion has a certain influence on crack - load but not the liner re- lation. The calculated results are in good agreement with the experimental outcomes. This research will provide a reference to the similar study.

关 键 词：钢筋混凝土 构件 腐蚀 承载力 

分 类 号：U448.34[建筑科学—桥梁与隧道工程]