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Tied Arch Substitute

Serial Information: Civil Engineering—ASCE, 1988, Vol. 58, Issue 9, Pg. 44-46


Document Type: Feature article

Abstract:

When the Minnesota DOT decided to build a new bridge to replace St. Paul's historic High Bridge over the Mississippi, a citizen's advisory group insisted that the new span be just as graceful, light and technically advanced as was its famous predecessor�a riveted wrought iron truss. The state came up with a welded steel tied arch that is graceful and light in appearance, and that features an innovative arch tie system, which combines structural steel H-beams with reinforcing tendons to overcome the inherent redundancy of a tied arch system.

Subject Headings: Structural systems | Arches | Arch bridges | Truss bridges | Structural steel | Steel | Span bridges

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