Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Strength of Concrete Filled Steel Tubes under High-Strain Rate Loading
A Split Hopkinson Pressure Bar (SHPB) equipment was used to perform the high-strain rate compressive tests on concrete filled steel tubes (CFT) under both room and elevated temperatures. This paper reports the results of load-deformation relationships, the dynamic compressive strength corresponding to different strain rates and temperatures. The results reveal the existence of a steel tube and concrete core interaction mechanism. Although the dynamic yielding strength of CFT specimens under elevated temperatures decreases somewhat with the increasing of temperature, the dynamic ultimate strength decreases little with the elevated temperature. A calculation of the dynamic compression strength for CFT columns under both room and elevated temperatures using the simple additive equations without considering confinement was attempted and shown to yield reasonable underestimation to the test results.
Strength of Concrete Filled Steel Tubes under High-Strain Rate Loading
A Split Hopkinson Pressure Bar (SHPB) equipment was used to perform the high-strain rate compressive tests on concrete filled steel tubes (CFT) under both room and elevated temperatures. This paper reports the results of load-deformation relationships, the dynamic compressive strength corresponding to different strain rates and temperatures. The results reveal the existence of a steel tube and concrete core interaction mechanism. Although the dynamic yielding strength of CFT specimens under elevated temperatures decreases somewhat with the increasing of temperature, the dynamic ultimate strength decreases little with the elevated temperature. A calculation of the dynamic compression strength for CFT columns under both room and elevated temperatures using the simple additive equations without considering confinement was attempted and shown to yield reasonable underestimation to the test results.
Strength of Concrete Filled Steel Tubes under High-Strain Rate Loading
Xiao, Yan (Autor:in) / Zheng, Qiu (Autor:in) / Huo, Jingsi (Autor:in) / Shan, Jianhua (Autor:in) / Chen, Baisheng (Autor:in)
International Conference on Composite Construction in Steel and Concrete 2008 ; 2008 ; Devil's Thumb Ranch, Tabernash, Colorado, United States
25.02.2011
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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