Verifications Of Inelastic Seismic Response Performance Of Reinforced Concrete Frame And Frame-wall Structures

Frame and frame-wall structures are two kinds of RC structures used widely in earthquake regions in China. The realization of performance objectives of structures under earthquakes at various levels depends on valid seismic fortification measures. These measures assure structures necessary ductility and hysteretic energy-dissipated capacity, make them dissipate stably earthquake energy through inelastic deformation and keep their carrying capacities to vertical loads and the stabilities as a whole under higher earthquake action levels. Series of design methods and seismic measures of our national design codes for frame structures and frame-wall structures are mainly based on experiments, experiences from earthquake disasters and from engineering, and referred to seismic measures in foreign codes. Up to now, these methods and measures still have not been verified by theoretical analyses. The availability of measures of internal forces adjustment and seismic detail can not been evaluated definitely. In recent years, analyses of series of typical structures under certain ground motions have been carried out through inelastic dynamic response analysis program in order to verify some seismic design methods and measures in foreign codes. But the similar research work has not been found in our country. The purpose of this thesis is to develop an inelastic dynamic response analysis program, and to study seismic behaviors of RC structures under earthquakes at various levels through this program, then to verify the validity of seismic measures in Chinese code through theoretical analyses.The main research work finished in this thesis is as followings:①Based on the early researches of the author's research group, an inelastic dynamic response analysis program for RC frame and frame-wall structures was developed. In this program, the one-component model is applied to the beam and column members, and the multi-vertical-element model (MVEM) is applied to wall elements. The program has been verified through the comparisons of results analyzed by this program and those by a well-known similar foreign program IDARC5.5, and the comparisons between simulated results of shaking table tests of model structures analyzed by this program and those tested. The value of the coefficient c of the height of the relative rotation center in MVEM was analyzed.②The research findings of the R-μ-T relation and overstrength effect in seismic design principle of RC structures were summarized. The different methods of capacity...