Method for prodn. of bridge

摘要

The bridge part coming from the mfg. station (3) has an increasing curvature over its length (1). Piers and auxiliary supports (2) are provided, over which the bridge coming from the mfg. station is pushed. At both ends of the bridge there are parts which connect bridge parts or roads, which run continuously, and the curvature radius is constant. The ends of the bridge part run tangentially to the connecting pieces. The bridge part is divided into segments which form a polygonal sequence, which follows the run of the bridge. In the end condition two segments are provided between two adjacent piers and auxiliary supports. At each polygon point adjacent segments enclose the polygon angle alpha which is always less than 180 deg.