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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: Development of Design Criteria for Transit Guideways
Author(s): Andrzej S. Nowak and Hid N. Grouni
Publication: Journal Proceedings
Appears on pages(s): 387-395
Keywords: criteria; girgers; guideways; load factors; prestressed concrete; rapid transit railways; reliablity; safety factor; structural design.
Abstract:Genrally, transit guideways have been designed using highway and railway bridge design codes. However, there are significant differences berween structures supporting highwuy and roadway traffic and those supporting transit vehicles, particularly, in values and variations of load components. This may result in uneconomical solutions for transit structures. The procedure used to develop criteria for the design of transit guideways is described. Five transit systems were selected. Load components and their variations were determined. Then, load and resistance factors were calculated. The acceptance criterion was closeness of the calculated liability indices to the target safety level. Safety is measured in terms of a reliability index, and design criteria were developed for the ultimate and serviceability limit states.
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