结合某客运专线萧山特大桥小跨度岔区刚构-连续组合梁桥的设计,根据该刚构所处地理条件对其构造特点、桥墩刚度、内力分析进行探讨。结果表明,净空受限条件下9×20m刚构-连续组合梁桥不仅满足了道岔的布置要求,也提高了道岔区桥梁、轨道、道岔的安全及平稳性。 Combined with the design of the rigid-continuous composite beam bridge of Xiaoshan Super-Large Bridge in a passenger dedicated railway, the structural characteristics, stiffness and internal force analysis of the bridge pier are discussed according to the geographical conditions of the rigid structure. The results show that the 9 × 20m rigid-continuous composite bridge not only meets the layout requirements of the turnout but also improves the safety and stability of the bridge, track and turnout in the turnout area.