THE ASSESSMENT OF STRESS RESULTANTS AND DISPLACEMENTS IN BRIDGE DECKS BY THE USE OF DISTRIBUTION COEFFICIENTS
This paper presents a simple but accurate method of determining stress resultants and displacements in simply supported bridge decks due to a variety of live loading specifications. The current work augments previous displacement techniques described by the authors as the D-Type method, and retains the essential procedure and simplicity. The semicontinuum method is explained in principle and then applied to a simple bridge deck consisting of a reinforced concrete slab on prestressed Y-beams. A table is presented showing the accuracy of the method compared with the more traditional grillage and finite element approaches which can be very time consuming and produce much superfluous data. A table of distribution coefficients is also presented and used to illustrate the method, and a computer program option is provided which requires very little input compared with finite element packages, and which produces a distribution profile across the width of a deck for both longitudinal bending moments and displacements at any given cross section. The method is shown to be simple and reliable and presents a challenge to bridge engineers to break out of the strait-jacket of conventional analysis techniques with confidence. (A) For the covering abstract see IRRD 882313.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0419212108
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Corporate Authors:
E and F Spon Limited
2-6 Boundary Road
London, England -
Authors:
- PAPASSOTIRIOU, N V
- RYALL, M J
- Conference:
- Publication Date: 1996
Language
- English
Media Info
- Features: References;
- Pagination: p. 769-78
Subject/Index Terms
- TRT Terms: Beams; Bridge decks; Bridges; Conferences; Loads; Measurement; Motion; Stresses
- ITRD Terms: 3472: Beam; 3455: Bridge; 3482: Bridge deck; 8525: Conference; 5567: Load; 6136: Measurement; 5483: Movement; 5575: Stress (in material)
- Subject Areas: Bridges and other structures;
Filing Info
- Accession Number: 00729515
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 0-419-21210-8
- Files: ITRD
- Created Date: Dec 26 1996 12:00AM