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《Journal of Earthquake Engineering and Engineering Vibration》 2009-01
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Experimental study on two-dimensional loading quasi-static of prestressed concrete spatial frame joint

LI Xuhong,FANG Zhenzheng,CHEN Haode(College of Civil Engineering,Fuzhou University,Fuzhou 350002,China)  
Quasi-static experiments of prestressed concrete spatial frame joints and RC spatial frame joint are carried out under different axial compressions and uniaxial/biaxial cyclic lateral loading.The relationship between force and displacement is obtained with different loading approaches.Through the analyses of failure process,carrying capacity,stiffness,ductility and dissipating energy,it can be concluded that the coupling effect is obvious under biaxial lateral load,the torsional phenomenon exists in specimens,the degradations of strength and stiffness are more serious and the ability of dissipating energy is reduced.
【Fund】: 福建省科技厅F5项目(2007F5072)
【CateGory Index】: TU378.4
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