Features Separate Damping Bearing Research And Development

Based on analyzing the exploitation and applying of bridge bearing, aiming at the hotspot of bearing research, the paper introduces the isolation bearings' structure and working mechanism .The paper also brings forward a promising isolation bearing model-polysaccharid sliding rubber bearing +high damping rubber damper. Through studying the working mechanism of the composing, the paper referred the bearing's analyzing model and designing flow.Through shearing test of high damping rubber ,the paper analyzes the influence of shearing shape, shearing strain range and inspiriting frequence on the characteristic parameters(dynamic shear elastic module , dissipation engineering module , wasted gene ).According to the rule of equivalent energy, the paper gets the hysteretic curve of HDR's equivalent bilinear model and parameters'calculating formula. According to regress, the paper got equivalent shearing stiffness and equivalent damping gene's calculating formula of the HDR's equivalent linear model. At last, the paper estimates the effect of integrated isolation bearing with a 4 span continuous beam bridge by Nonlinear Dynamic Analysis Program. Through test and calculation, the paper find that: the isolation effect of integrated isolation bearing is good, withal it's briefness construction and installation, the integrated isolation bearing is a promising isolation bearing.