SHEAR STRENGTH OF RC FRAME JOINTS WITH DIFFERENT DEPTH BEAM USING SOFTENED STRUT-AND-TIE MODEL
Ten specimens of interior joints with different depth beams were tested under reversed cyclic loading. The failure characteristics and failure process of interior joints are analyzed. Based on the experimental study,an analytical model for equivalent joint core of frame joint under the combined action of axial load and shear is established,and the shear strength of equivalent joint core of tested specimens was calculated by using softened strut and tie model (STM). Results indicated that the calculated shear strength of STM is quite nearly with that of code method,but STM has more definite mechanical model and can reasonable reveal failure mechanism of beam column joint. Thus,good agreement between experimental results and prediction results of STM is achieved. Based on softened strut and tie model,the effect of axial compression ratio on seismic behaviour of joints with different depth beams is also discussed.
Interior joint Seismic behavior Analytical model Softened strut-and-tie model Simplified method
Tao Wu Guo-Hua Xing Bo-Quan Liu
School of Civil Engineering,Changan University,Xian 710061,P.R. China
国际会议
The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)
广州
英文
1869-1874
2010-12-01（万方平台首次上网日期，不代表论文的发表时间）