The Analysis Of Seismic Behavior And Design Probing Based On The Span-depth Ratio Of Coupling Beam On Shear-wall Structure

This paper is to the different span-depth ratio of coupling beam models basedon the response spectrum analysis and the push-over analysis with using the finiteelement software and combining with related regulations. Separately from the ratioof coupling beam in the layer of structure and the story’s number of structure twoaspects to research the effects of coupling beam to structure. First, by establishingtwo kinds of them, response spectrum analysis, and researching the elastic behaviorof them from three aspects of internal force, deformation and dynamic characteris-tics; Then, by establishing the coupled shear wall models, push-over analysis, andresearching the elastic-plastic behavior of them from the aspects of performancepoint of structure, interstory drift and plastic hinge,etc; Last, by establishing dif-ferent ratio and different story’s number of them, response spectrum and push-overanalysis, and separately researching the structural response of them.Through the analysis of this research, it can reach that they can be carried outby changing the section height of the coupling beams and changing the width ofshear wall hole, the relevant performance reflects the two ways was no significantdifference in a certain range, it can control the performance of structure better andfaster by changing the section height beyond this range. Second, By the analysis ofthem, we can reached, as the structure of weak coupling beam models, they aregood ductility, earlier to the plastic stage, but the ultimate bearing capacity ofstructure is lower, stiffness degradation phenomenon is more serious; as the struc-ture of strong coupling beam models, they are good at lateral resistant ability, theultimate bearing capacity is higher, good entirety, but worse ductility, it’s to beneeded to determine the span-depth ratio of coupling beam according to the actualsituation. Third, analysis can be obtained, control the stiffness of coupling beam atthe two ends of structure have a great influence on structure, when the ratio bymore than20%, the corresponding effect of the trend is smaller. Fourth, By thedifferent story’s number of coupling beam models, analysis can be obtained, asweak coupling beam model, good ductility, as strong one resistance is better, thestrong one is much higher resistance than that of weak one, the related resistance decreased rapidly as the number by more than15floors, the ductility is improved.