文章以山西核桃凹大桥既有设计方案为例,依据新规范建立了该高墩弯桥的有限元分析模型,分别采用反应谱和非线性时程方法对其墩柱按E1(常遇)和E2(罕见)地震作用进行了抗震分析,结果表明墩柱底部满足E1地震作用下的极限承载能力要求,但在E2地震作用下墩柱底部在横桥向未进入塑性变形状态,建议进一步对其墩柱的截面尺寸和配筋进行优化设计。 Taking the existing design scheme of Shanxi Walnut Bridge as an example, the finite element model of the high pier curved bridge is established according to the new code. The response spectrum and nonlinear time history method are used respectively to calculate the pier elbow by E1 (Rare earthquakes). The results show that the bottom of the piers satisfies the requirements of ultimate bearing capacity under the E1 earthquake. However, under the E2 earthquake, the bottom of the pier does not enter the plastic deformation state in the transverse direction, Pier cross-section size and reinforcement for optimal design.