高温对混凝土粘钢界面剪切性能的影响  

Effect of High Temperatures on Shear Behavior of Concrete Bonded Steel Interface

作　　者：陈建稳[1] 董亚楠[1] 司维[1] 张翊[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2008年第4期12-15,共4页Journal of XUZHOU Institute of Architectural Technology

摘　　要：针对不同的受热温度(250℃、350℃、450℃和550℃),进行了高温后C30混凝土粘钢试件剪切性能的试验研究.试验结果表明,高温后混凝土粘钢试件破坏时表现出明显的塑性特征,钢-混凝土试件的粘结剪切强度随着受热温度的升高逐渐减小.根据试验结果,得到了钢-混凝土粘结剪切强度随受热温度升高的退化公式.In view of different heating temperatures （250 ℃, 350 ℃, 450 ℃ and 550 ℃）, experimental research was carried out on the shear behavior of C30 concrete bonded steel specimens after high temperatures. The results revealed that the concrete bonded steel specimens performed obviously plastic characteristics in the failure process after high temperatures and the adhesive shear strength of the specimens decreased continuously with the rise in heating temperatures. Based on the test results, obtained was the degenerate formula of the steel-concrete adhesive shear strength with the rise in heating temperatures.

关 键 词：粘钢板 加固 高温 混凝土 剪切性能 

分 类 号：TU375[建筑科学—结构工程]