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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: Experimental Studies of Prestressed Thin Plate Structures
Author(s): John F. Brotchie
Publication: Journal Proceedings
Appears on pages(s): 87-95
Keywords: concrete panels; concrete slabs; creep properties; deflection; flat
concrete plates; hyperbolic parabolic shells; loads (forces); models; moments;optimization;prestressed concrete;prestressing steels;research; shells (structural forms);structural design.
Abstract:This paper desciribes experimental studies of two thin prestressed ocncrete structures designd for controlled performance under service loads. The first of these is a flat plate structure with rectangular panels and this is considered in particular. This study complements theoretical studies of flat plate structures conduted in the CSIRO devision of Building Research, Australia, shic lead to the development of simple direct design techniques. It describes a third scale model of a prestressed flat plate structure with draped tendons designed in accordance with these direct design techniques. The plate was tested initially inder long-term constant uniform loading and finally under short-term incremented uniform loading to failure. The other structure was a hyperbnolic parabolic shell which differed in that the cocrete section was of variable thickness, the middle surface was curved, and the dircet design techniques and its long-term performance under service loading is reported. In each case, performance was closely controlled through the direct design techniques and compares well with the design criteria adopted.
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