STUDY ON BI-AXIAL EARTHQUAKE RESPONSES OF REINFORCED CONCRETE STRUCTURES WITH SLIPPING TYPE RESTORING FORCE CHARACTERISTICS
In this paper, slipping type bi-axial non-linear restoring force model proposed by authors in previous study was explained firstly. The proposed model, which a tensor was used to express slipping behaviors, was an extended model of a elastic-perfectly plastic type bi-axial model that was based on an analogy to the theory of plasticity. Then earthquake response analyses with one-mass-system were carried out. One of the features of earthquake responses of bi-axial slipping model was that two-directional shear force response was radial and tended to concentrate in orthogonal direction of yielded direction. Numerical results of two-dimensional analyses were compared with that of one-dimensional analyses of a maximum displacement response in all horizontal direction. A tendency can be seen that plastic ductility ratios of two-directional analyses were a little smaller than that of one-directional analyses, and total input energies of two-directional and one-directional analyses were hardly different.
reinforced concrete bi-axial restoring force model earthquake response analysis slipping behavior theory of plasticity one-mass-system
K. Nishimura H. H. Nguyen K. Takiguchi
Dept. of Architectural and Building Engineering, Tokyo Institute of Technology, Tokyo, Japan Dept. of Mechanical and Environmental Informatics, Tokyo Institute of Technology,Tokyo, Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）