Reinforced Concrete Frame - Shear Wall Structure Plane Nonlinear Seismic Response Analysis

In this thesis ,based on the research of the former scholars ,the nonlinear analysis method of the frame-wall structure is applied and improved ,which focus on the nonlinear time-history analysis and the static nonlinear pushover analysis .In the nonlinear time-history analysis ,based on the comprehension and the application of the former relevant theories and calculating methods ,a new five-segment planar bar element model considering reinforcement arrangement is developed ,and a relevant time-history analytic program is provided .The analytic results of two examples showed that the new five-segment planar bar element model can well reflect the effect of the reinforcement arrangement distribution.In the static nonlinear pushover analysis ,basic concepts and different applicable methods of the static nonlinear pushover analysis are summarized . Then the lateral load pattern and the target displacement ,which are key problems of the static nonlinear pushover analysis, are improved .The new developed lateral load pattern is the instantaneous adaptive lateral load pattern gained by the internal force of the structure, and the new developed capacity spectrum method combined with the code response spectrum is used to gain the target displacement .At the same time ,a pushover analysis of circulating load pattern is developed ,and a relevant static nonlinear pushover analytic program is provided .The analytic results of two examples demonstrated that the instantaneous adaptive lateral load pattern is able to reasonably capture the important response attribute and that the pushover analysis of circulating load pattern compared with the pushover analysis of single direction load pattern can more accurately reflect the effect of the earthquake .