塘汉快速路永定新河特大桥方案比选

Scheme Comparison and Selection of Yongding New River Bridge in Tanghan Expressway

塘汉快速路永定新河特大桥由南、北两侧引桥及主桥组成。该文介绍永定新河特大桥主桥设计方案比选,包括对桥位建设条件的理解,以及针对矮塔斜拉桥、变截面连续梁两个方案,从景观、施工、造价、耐久性等方面进行比较。

Yongding New River Bridge in Tanghan Expressway is composed of the approach bridges at the south and north sides,and the main span.The article introduces the comparison and selection of the design schemes for the main span of Yongding New River Bridge.Based on the comprehension of bridge position construction conditions and according to two schemes of the low-pylon cable-stayed bridge and the variable cross-section continuous girder,the article compares the landscapes,constructions,costs,durability and etc.