公路预应力混凝土曲线桥梁设计问题探讨

Discussion on Design Issues of Highway Prestressed Concrete Curved Bridges

研究了公路预应力混凝土曲线桥梁设计问题,在掌握曲线桥梁类型和特点的基础上,分析了支座脱空、梁体错位、局部破坏、桥梁倾覆等典型病害,找到其中存在的设计隐患,并总结了预应力设计思路、预应力钢束配置、桥梁支承方式、支座预偏心设置等方面的内容。

This paper studies the design problem of highway prestressed concrete curved bridge,and on the basis of grasping the types and characteristics of curved bridge,analyzes the typical diseases such as support stripping,beam body dislocation,local damage and bridge overturning,and finds out the hidden dangers in the design,and summarizes the prestressed design idea,prestressed steel bundle configuration,bridge support mode and preeccentricity setting of support.