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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: Failure Modes of Elastomeric Bearings and the Influence of Manufacturing Methods
Author(s): Charles W. Roedr, John F. Stanton, and Andrew W. Taylor
Publication: Special Publication
Appears on pages(s): 279-296
Keywords: bearings; bridge bearings; buildings; cracking (fracturing); failure mechanisms; fatigue (materials); pads; polychloroprene; rubber; stability; Design
Abstract:Elastomeric bearings and bearing pads are used in bridges and precast concrete buildings. They support large gravity loads while accommodating movements due to creep, relaxation, and thermal expansion. The design criteria for these bearings are often simplistic, and their modes of failure are frequently not understood by the design engineer. The paper describes the modes of failure of elastomeric bearings. These include yield and rupture of the reinforcement, delamination of reinforcement, cracking or tearing of the rubber, fatigue, and instability. Experimental results are summarized, and the influence of different manufacturing techniques are illustrated. The results show the importance of careful design and manufacture of these bearings, which help guide the engineer toward improved design procedures.
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