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: Arch bridges | Arches | Bridges | Civil engineering landmarks | Construction | Design | Historic sites | Ties

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