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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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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: Some Considerations Involved at Points of Bearing in Contemporary Bridges and Structures
Author(s): Ronald J. Watson
Publication: Special Publication
Volume: 94
Issue:
Appears on pages(s): 297-318
Keywords: bearings; bridge bearings; loads (forces); rotation; rubber; plastics, polymers and resins; structural design; Design
Date: 9/1/1986
Abstract:In the past, structures were designed in such a way that one-dimensional bearings such as the rocker or roller-type devices could accommodate the forces between the superstructure and substructure. Today's curved girder, post-tensioned, and cable-stayed structures, to name a few, require much more versatility from a bearing assembly. The paper discusses several case histories on which unusual and arduous design criteria were developed at points of bearing. Concepts such as uplift, rotation in plan, seismic design, flexible guiding, replaceability, and high horizontal forces are described in detail as they apply to various structures. Testing procedures and requirements on specific projects are also examined and evaluated.
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