Flexural behavior and design of reinforced fiber concrete members

Document Type

Conference Proceeding

Publication Date

12-1-1987

Abstract

The use of reinforced fiber concrete in buildings in order to come up with an adequate section to resist a flexural failure has been under investigation by engineers in the past decade. In this paper, design and analysis methodologies will be discussed so that this type of construction can be successfully developed by engineers. In the first part of this paper, results from thirteen beams which were tested at New Jersey Institute of Technology will be presented to show the nature of the flexural behavior. These beams are for: 1) normal concrete; 2) high strength concrete; and 3) lightweight concrete with and without fibers. Most of the results from these tests have not been reported previously. A computer program will also be shown which accurately predicts the flexural behavior of these beams and other reinforced fiber concrete members. With these test results and computer program, inelastic and elastic behavior in flexure will be discussed. The main part of the paper will be concentrated on analysis and design methods. All past methods of analysis will be discussed (such as Williamson, Henager and Doherty, Swamy and Al-Ta'ans, etc.) briefly. A method which has been developed by NJIT will be explained for analyzing of regular singlyreinforced, doubly reinforced, and "T" beams. The Pb criteria will be explained for each case. Analysis equations and design methodology will be shown for each type of beam. Hence, this paper will show the state-of-the-art in analysis with the examples, and presents a rational scheme for design to be used by the design engineer which will help in the adoption of such a construction material.

Identifier

0000401640 (Scopus)

Publication Title

American Concrete Institute ACI Special Publication

ISSN

01932527

First Page

517

Last Page

563

Volume

SP-105

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