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The current seismic design of buildings (GB50011-2001) requires the elastic and plastic deformation under rare earthquake checking should be carried out for some of the high-rise complex structure, but for complex high-level and high-rise buildings, how to carry out the the elastoplastic deformation under rare earthquake checking fortification goal to achieve \Reinforced concrete frame - shear wall structure is one of the main structure of the high-rise building. The numerical simulation technology is an important means to study the seismic response of building structures, however, reinforced concrete frame - shear wall structure elastoplastic dynamic response analysis calculation software is not at home and abroad, and the vast majority of the structural model is a two-dimensional or quasi-three-dimensional analysis model for most frame - shear wall structure, it is difficult to be reduced to a flat structure, so the establishment of the three-dimensional model for the three-dimensional space elastoplastic seismic response analysis is to solve the problem fundamentally. Elastoplastic seismic response analysis of frame - shear wall structure, appropriate analysis of shear wall model to establish reasonable hysteretic model is very critical. The complex shear wall stagnation denatured state, the study of the mechanism and ductility performance far post and beam studied in-depth and mature, there is not a perfect mathematical model, and traditional shear wall macro-unit model (DRAIN-2D and the IDARC-2D model) is difficult to use the three-dimensional analysis, microscopic model is also application difficult. There is more hope to solve the structure of three-dimensional elastic-plastic analysis model of the unit is the fiber model and similar multi-spring model. Fiber model can consider the coupling between the change in the axial force and biaxial bending, bending rod capable of expressing the mechanical properties under multiaxial loading, analog performance but how in the end, compared with the difference between the traditional model, whether can be applied to the actual structure analysis, and research on these issues. This paper fiber model (CANNY99) and the traditional unit the model (IDARC 2D4.0), respectively, of the the nine 1:6 reinforced concrete frame - shear wall structure shaking table test model US-Japan joint seven-story full scale frame - shear wall structure pseudo-dynamic test model of the longitudinal structure seismic response analysis, top floor displacement, acceleration, base shear layers largest inter-layer displacement angle compared with the test results, comprehensive evaluation of analog effect. Draw this conclusion: the three-dimensional elastic-plastic analysis method based on fiber model based on two-dimensional plane analysis is very similar to the simulation results of the model IDARC-2D4.0, better reliability and stability, and the numerical simulation and experimental results consistent, can realistically simulate the elastoplastic seismic response of the structure. This is the larger significance of reference to study the structure of three-dimensional elastic-plastic earthquake response. With the accumulation of experience of earthquake damage, people come to realize that the time of the earthquake ground motion is multidimensional, whether symmetrical structure, or eccentric structure often have to reverse the destruction. Therefore, to simplify the structure into a plane model and consider only unidirectional motions elastoplastic analysis fails to fully reflect and reveal the essence of the structure seismic response. , Single, bi-directional input ground motion structure inelastic response extent to which the similarities and differences, people are very concerned about the problem of structural response under seismic ground motion analysis. This article will use the three-dimensional structure of nonlinear analysis program CANNY99, a regular, symmetrical reinforced concrete frame - shear wall structure to establish a three-dimensional spatial analysis models, respectively, in a single, bi-directional input ground motion Elastoplastic Seismic Response Analysis both cases, the structure of the top-level displacement, acceleration, torsion angle, angular displacement between the the base shear layers largest layer, layer shear layer torsion angle Responses were compared. By comparing the analysis show that: little change in reaction rules, symmetrical structure in a single, bidirectional input, the maximum floor displacement, maximum story shear layer displacement angle, the top-level displacement and acceleration versus good agreement curve amplitude The value of the size and waveform change is very similar. But it is worth noting that, the bidirectional input and the structure when the top layer when the torsional reaction of torsion angles away reaction and floor maximum torsion angle reactions are much larger than a single direction input, and reversing the selection of the response and the seismic wave closely related.
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