The earthquake load of its main pile was reduced by over 80 percent . the second sample is a railway simple - beam bridge . the earthquake load of its main pile was reduced by over 50 percent 实例分析表明:设计的铅芯橡胶支座具有明显的减震效果,在连续梁桥中,制动墩的减震率达80以上;简支梁桥中,减震率达50以上。