Crossing the Funder Valley Using the Patented Match-Cast Incremental Launching Method

摘要

With a total length of 724 m Funder Bridge is the longest existing bridge in Denmark located entirely on land. The twin hollow box girder bridge was erected using the known incremental launching method using temporary piers. Generally, it is only possible to launch curved girders if they have a constant radius. The challenge here consisted of finding a solution to launch a girder which begins with a constant radius of curvature but ends on a spiral curve (using the patented "match-cast" incremental launching method). Erection also required innovative auxiliary works such as an A-Frame spanning the Funder valley as no temporary piers were allowed inside this nature reserve or a double sector launching port which allowed for faster production of the segments.