中运河桥方案比选

Comparative Analysis of Concept Design for Zhongyunhe Bridge

桥梁方案比选是整个桥梁设计过程中非常重要的一个环节。方案的好坏对于桥梁的建设、运营以及后期养护整个过程都有着非常大的影响。以中运河桥为例,阐述了如何结合河道特点、通航要求以及道路的交通运输组成等因素,来进行桥梁方案设计构思;从全寿命周期成本的理念出发,从功能、造价、施工、后期养护以及美观等几个方面进行了桥梁方案的比选,论述了连续梁、系杆拱等桥型在不同项目条件下的适用性。

The selection of concept design is a very important part in the whole procedure of the bridge design. A great influence can be imposed on all the stages of the project including the construction, operation and maintenance. Taking the Zhongyunhe bridge as an example, it is presented how to carry out the bridge concept design based on the river characteristic, shipping qualification, traffic composition and so on. With the basis of the entire life cycle cost analysis, comparisons and selections are carried out in this paper from the aspects of function, construction, cost, maintenance, aesthetics, and so on. The applicability of continuous bridge and tied -arch bridge are discussed under different conditions.