Germany Constructs Steel Box Girder Landmark

by Wilhelm Zellner, Partner; Leonhardt and Zellner, Stuttgart, Germany,

Serial Information: Civil Engineering—ASCE, 1975, Vol. 45, Issue 4, Pg. 61-64

Document Type: Feature article

Abstract: The designer of a steel hollow box girder bridge in West Germany describes the design process and gives some construction details. Longest possible spans were sought because of environmental reasons—not to spoil the view across the Mosel Valley. The tender method of design is discussed. The owner's representative does all preliminary work and decides on the best possible design. He then offers this tender design without details to competitive bidders. These contractors can then work out the details according to their best or particular capabilities. They may also offer a competitive design. For this bridge, five alternative designs were offered, but the owner chose the original design. The method lends itself to fast-tracking, since construction may begin while details are being worked out. Pros and cons are given; all designs are described.

Subject Headings: Bids | Bridges | Construction | Design | Germany | Girder bridges | Steel bridges |

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