【摘要】 采用时程分析方法,研究了具有减隔震支座的铁路高墩大跨度简支钢桁梁桥的减震性能,探讨减隔震技术在高墩桥梁中的适用性。通过数值分析研究了采用铅芯橡胶支座、盆式橡胶支座和双曲面支座时的减震效果。计算结果表明,在铁路高墩大跨度简支钢桁梁桥上使用减隔震支座具有一定的减震效果。更多还原

【Abstract】 The seismic reduction performance of high pier and long span railway simply-supported steel truss girders with the bearing of shock absorption and vibration isolation is presented by using time history response analysis,and technical applicability of shock absorption and vibration isolation for the bridge of high pier is discussed.The seismic reduction effect of lead rubber bearing,pot rubber bearing and hyperbolical bearing is researched by using numerical analysis.The calculated result shows that some seismic reduction effects is obtained by using the bearing of shock absorption and vibration isolation on the high pier and long span railway simply-supported steel truss girders.更多还原