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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: The Evolution of Concrete Cable-Stayed Bridges
Author(s): Walter Podolny Jr.
Publication: Concrete International
Appears on pages(s): 34-42
Keywords: bridges (structures); bridge piers; con-cretes;
concrete construction; precast concrete;
prestressed concrete; suspension bridges.
Abstract:Morandi’s Lake Maracaibo Bridge constructed in 1962 is generally considered to be the first modern concrete cable-stayed bridge; however, it was preceded by two other little known concrete cabie-stayed structures. The evolution of concrete cabie-stayed bridges is traced from Torroja’s Tempui Aqueduct in Spain, completed in 1925, to present day design concepts. To the author’s knowledge, 21 cable-stayed bridges have been constructed and others are in the design stage. As late as 1970, the practical span limit for steel cable-stayed structures was considered to be 1000 ft (300 m). Currently, the Dame Point Bridge, concrete alternate, contemplates a 1300 ft (396 m) main span. Concrete cable-stayed bridges with spans of 1600 ft (500 m) are considered technically feasible. The concept of a concrete cabie-stayed bridge has extended the practical and competitive economic span range to the extent that concrete is a viable material alternative in the long-span bridge range. This article discusses the history, advantages, structural arrangement, and stay cable spacing of concrete cable-stay bridges. [Author]
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