崖门大桥主桥施工概况

Construction of Main Spans of Yamen Bridge

崖门大桥主桥为(50+115+338+115+50)m双塔单索面预应力混凝土斜拉桥,采用墩、塔、梁固结的结构体系,主跨338m,设计新颖,在施工中大量使用了新工艺、新技术。介绍其基础施工、上部结构施工方案、施工步骤以及主要施工技术特点和技术难点。

The main spans of Yamen Bridge are designed as a prestressed concrete cablestayed bridge of twin pylons and single cable plane with the spans arranged as (50+115+338+115+50) m and with their piers, pylons and girder rigidly connected. The bridge is unique in design and is notable for quite a few new workmanship and new techniques used in the construction. In this paper, the foundation construction, superstructure construction schemes and procedures and the principal construction technique features and difficulties of the bridge are expounded.