【摘要】 以国道325线九江大桥主桥桥墩为背景工程,考虑桥梁上部结构永久荷载及船舶撞击水平力的作用,利用桥梁桩基空间静力分析程序求得最不利桩基的内力。基于钢筋混凝土结构承载能力极限状态法,结合大偏心受压构件受力特性,通过不断试算逼近的方法计算基桩所能承受的水平力来确定桥墩抗水平作用能力,计算结果具有较高精度。基于动力计算的复杂性,采用静力方法计算桥墩抗水平作用能力具有简单方便的特点,为设计人员提供了一种实用有效的计算方法。更多还原

【Abstract】 Taking the federal highway 325 Jiujiang bridge main pier as the background project,considering the combination action of bridge structural dead load and the collision horizontal force,the critical pile inner force was established by the Bridge Foundation Statics Analysis Program.Based on the carrying bearing capacity limit state method,the horizontal force by making a trial balance unceasingly approaches was established to determine the bridge pier collision prevention ability and it was verified to be rational.Against dynamic calculation complexity,the static method for anti-collision ability of bridge pier was proved to be a practical effective computational method and have obvious advantages for the design institute.更多还原