锈蚀钢筋混凝土压弯构件抗震性能试验研究

Experimental Study on Seismic Performance of Corroded Reinforced Concrete Members with Flexure and Compression

通过 1 0根锈蚀钢筋混凝土压弯构件在低周反复荷载作用下的试验研究 ,分析了经过自然暴露、快速电腐蚀后 ,再经氯离子干湿交替环境下的锈蚀钢筋混凝土压弯构件在不同轴压比下的破坏规律 ,讨论了钢筋锈蚀量对试件承载力、刚度、延性及耗能能力等抗震性能的影响 ,并与以往的试验结果进行了对比。试验表明 ,钢筋的锈蚀量和构件的轴压比是影响锈蚀钢筋混凝土压弯构件抗震性能的主要因素。

Based on the test results of ten RC members under low cycle reversed loads,which are corroded by exposing in natural environment,accelerated electrochemical method,and alternating drying-wetting in chloride case,the damaging rules of members under different axial compressive loads are studied.The influences of corrosive amount on the seismic behavior,such as bearing capacity,stiffness,ductility and energy dissipation,are discussed.