以枣木高速木石互通立交A匝道桥为工程背景,针对原设计支座受力不均的现象,对不同的支座布置方案建立相应的有限元模型进行支座受力计算。计算结果的对比分析表明,通过将内、外侧支座沿径向合理的移动,可以在梁体内力不发生大的变化的前提下有效地改善内外侧支座受力不均现象,从而为此类桥梁的支座合理布置提供参考。 Taking Ju-Mu highway inter-overpass A ramp bridge as the engineering background, aiming at the phenomenon of uneven force of the original design bearing, the corresponding finite element model was established for different bearing arrangements to calculate the bearing force. The comparative analysis of the calculated results shows that by moving the inner and outer bearings along the radial direction reasonably, the force imbalance in the inner and outer abutments can be effectively improved under the premise of no significant change in the internal force of the beam body, The reasonable arrangement of bearing of bridge is provided for reference.