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Title: The Design Of Concrete Arches In Allegheny County, Pennsylvania

Author(s): G. S. Richardson

Publication: Journal Proceedings

Volume: 28

Issue: 6

Appears on pages(s): 637-652

Keywords: none

Date: 6/1/1932

The design of six concrete arches on the Ohio River Boulevard similar in detail is compared with that of the George Westinghouse Bridge, consisting of five arch spans with the central one the longest constructed in America. Celluloid model studies of the latter bridge showing the effect of various locations of expansion joints and interaction of arch rib and superstructure made with Beggs’ deformeter equipment are described. The relation of dead, live, tern erature and shrinkage stresses is discussed and the inf uence of ratio of depth l of rib to span on these stresses is considered.


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