与预应力钢筋混凝土梁相比，其刚度较小，特别是在大跨径桥梁中，其挠度变形是影响其应用的重要控制因素。
Compared with prestressed rebar concrete beam, its stiffness is more little. Especially in the-big-span bridge, its deflection is a important control factor which influence its application.
试验中的主要参数有：纵向钢筋的数量、横向配筋率、剪跨比、管壁的厚度及混凝土强度。
The parameters in the aeries include: amount of longitudinal reinforcement, amount of transverse reinforcement, shear span-to-depth ratio, thickness of tube wall and strength of concrete.
本文提出的大跨径钢筋混凝土悬臂弯拱桥设计方案是可行的，可以运用于实际工程中。
This text brings out that the new long span curve arch bridge with cantalever is feasible, it also can apply in the practical engineering.
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