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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Bridge Joints in a Seismic Area: A Case Study of the Dumbarton Bridge
Author(s): Charles Seim and Stanford Larsen
Publication: Special Publication
Appears on pages(s): 625-636
Keywords: bridge decks; bridges (structures) ; dynamic structural analysis; earthquake resistant structures; earthquakes; joint sealers; structural design.
Abstract:The new Dumbarton Bridge is located midway between two major California Faults, each approximately 15 miles from the site. Extensive computer dynamic analysis of both soil and structure indicated that large out-of-phase movements will occur at the deck joints during a major earthquake. This anticipated once-in-a-lifetime large scale movement led to the development of an innovated low cost, but large, movement deck joint design for the over water portion. For the concrete trestle approaches over land, an energy absorbing, force inducing sol id rubber joint of standard design was employed to improve the structure performance during a major earthquake. Construction of the replacement structure paralleling the older bridge started in 1978, with the opening projected for mid-1981.
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