Study on the Distribution Law of Horizontal Seismic Forces between Slab-Column and Shear Wall

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In slab column-shear wall structures,both the whole structure′s seismic behavior and failure mode are greatly influenced by the distribution of horizontal seismic forces between slab-column and shear wall.In this paper,a pushover analysis of topical slab column-shear wall structure was carried out,the seismic shear force that the slab-column and shear wall should undertake was worked out,the influences of plastic internal force redistribution and structure stiffness characteristic value on horizontal seismic distribution were studied and the calculation formula was given.The analysis results showed that with the yield of the shear walls,the story shear force was undertaken by slab-columns correspondingly increased while with the decrease of characteristic value of stiffness of a structure,and the horizontal seismic force was undertaken by slab-columns correspondingly decreased.According to the code,the design of horizontal force distribution may be cause insecurity problems,so it is necessary to give the distribution law of horizontal seismic forces in slab-column shear wall structures as the supplement to the corresponding regulation of the Code. In slab column-shear wall structures, both the whole structure of the seismic behavior and failure modes are greatly influenced by the distribution of horizontal seismic forces between slab-column and shear walls. This paper, a pushover analysis of topical slab column-shear wall structure was carried out, the seismic shear force that the slab-column and shear wall should undertake worked out, the influences of plastic internal force redistribution and structure stiffness characteristic value on horizontal seismic distribution were studied and the calculation formula was given. analysis results showed with that yield the shear walls, the story shear force was undertaken by slab-columns correspondingly increased while with the decrease of characteristic value of stiffness of a structure, and the horizontal seismic force was due by slab-columns correspondingly decreased .According to the code, the design of horizontal force distribution may be cause insecurity problems, so it is necessary to give the distribution law of horizontal seismic forces in slab-column shear wall structures as the supplement to the corresponding regulation of the Code.
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