【摘要】 以高速铁路客运专线上一座采用E型钢阻尼支座的32 m简支梁为对象,探讨了轨道约束对桥梁地震响应的影响,通过多条地震波输入时的计算结果分析,得出轨道约束对桥梁纵桥向地震响应的影响远远大于横桥向,对支座地震响应的影响大于对墩底剪力的影响;震后钢轨的残余变形主要取决于扣件的残余变形。更多还原

【Abstract】 Taking a 32 m simply supported beam using E type steel damping bearing of high-speed railway passenger dedicated line as an object,this paper discussed the influence of track constraint to bridge seismic response,through the analysis on calculation results of more seismic waves input,concluded that the influence of orbit constraint to the seismic response of HFTP far greater than CRFB,the influence of bearing seismic response greater than pier end shear;the residual deformation of post-seismic rail depended mainly on the residual deformation of fasteners.更多还原