建筑结构学报2013，Vol.34Issue(8)：37-45,9.
高温下带栓钉连接件型钢混凝土界面剪力传递性能研究
Study on force transfer behavior of SRC members with stud shear connectors at elevated temperatures
摘要
Abstract
The static push-out tests of twenty steel reinforced concrete (SRC) short columns specimens with stud connectors in the surface of shape steel at elevated temperatures and two other comparative specimens at normal room temperatures were carried out to study the shear force transfer behavior on the interface between shape steel and concrete in SRC members at elevated temperatures.Test results show that the typical failure mode of steel reinforced concrete short columns with stud connectors at elevated temperatures is concrete split,which is almost the same as that at normal room temperatures.The ascending part of load-slip curves of specimens at elevated temperatures is more flat than that at normal room temperatures,and the slip rigidity of specimens at elevated temperatures is lower than that at normal room temperatures.From normal room temperature to peak temperature lower than 400 ℃,the shear transfer capacity declines fast with the increase of the highest temperature in the whole heating process and declines slow when the highest temperature exceed 400 ℃.With the same highest temperature,the shear transmission capacity decline with the increase of time duration of the highest temperature.The calculating formula for shear transmission capacity of steel reinforced concrete with stud connectors at elevated temperatures was proposed.The calculating results of the formula are proved to be safe with test results.关键词
型钢混凝土/栓钉连接件/高温/推出试验/剪切承载力Key words
steel reinforced concrete (SRC)/ stud connector/ elevated temperatures/ push-out test/ shear transmission capacity分类
建筑与水利引用本文复制引用
李俊华,俞凯,邱栋梁,王国锋..高温下带栓钉连接件型钢混凝土界面剪力传递性能研究[J].建筑结构学报,2013,34(8):37-45,9.基金项目
国家自然科学基金项目(50908118),亚热带建筑科学国家重点实验室开放基金项目(2011KB24). （50908118）
