On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer, the principle of prestressed iendon layout for three-span prestressed concrete deck arch bridge is illustrated.

• 摘要在分析预应力布置位置对三跨上承式拱桥内力和拱脚推力影响的基础上，阐明了该类桥型预应力筋的布置原则。