部分预应力混凝土组合连续梁桥

Composite Continuous Beam Bridge with PartiallyPrestressed Concrete

本文提出了一种新桥型——部分预应力混凝土组合连续梁桥的设计原理与施工方法。此桥型为预应力筋与普通钢筋混合配筋结构,它具有桥型新,结构合理,施工方便,节省预应力钢材和使用效果好的优点,目前已按此桥型设计和新建了三座桥梁,它是适用于中等跨径梁式体系的较好桥型。

In this paper, some design principles and construction methods of a new type composite continuous beam bridge with partially prestressed concrete have been put forward. The type of structure is a kind of prestressed reinforcement composed with common reinforcement to be used as the mixed reinforcement. It has many advantages such as, new type, reasonable structure, very convenient for construction, saving material of prestressed reinforcement and achieving good effect in utilization. Three bridges have been built recently according to the new type design. It's a better type for the bridge which is suitable for the style of beam system with middle-sized span.