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本文是在“滦河大桥抗震分析”之一的基础上,进一步对该桥的抗震反应计算分析进行研讨。通过对现场测试结果的理论分析,提出桥梁的力学计算模型,利用“平面杆系动力反应分析程序”,按标准反应谱和输入地震波形,计算全桥的地震反应。并通过对两种计算模型基桩危险截面强度验算结果的对比,讨论了本桥的设计安全度及有关抗震设计的设施。
Based on one of the “Seismic Analysis of Luanhe Bridge”, this paper discusses the calculation and analysis of seismic response of the bridge further. Through the theoretical analysis of the field test results, a mechanical calculation model of the bridge is proposed, and the seismic response of the full bridge is calculated according to the standard response spectrum and the input seismic waveform by using “planar rod system dynamic response analysis program”. The safety of the bridge and the design of the anti-seismic design are discussed by comparing the checking results of the dangerous section strength of the two kinds of calculation models.