00390819

Component

http://onlinepubs.trb.org...rr/1984/950/950v2-011a.pdf

https://scholar.google.co...shaf&publication_year=1984

The findings of a current research project entitled Thermal Effects in Concrete Bridge Superstructures are highlighted. The research project is sponsored by NCHRP. A brief discussion of the mechanisms of heat transfer as they relate to bridge structures is presented, including the thermal coefficients of various types of different concrete composed of different aggregates. Also included are brief discussions on mean effective bridge temperatures, temperature differentials, and the response analysis for nonlinear temperature gradients. Two case studies of longitudinal thermal response selected from those conducted in the research from those conducted in the research project are included in this paper. The thermal gradients used in New Zealand, England, and Ontario, Canada, plus those recommended by the Post-Tensioning Institute, are included in the reesponse analysis. In addition, specific recommendations for improving the U.S. design provisions for thermal effects are included. (Author)

This paper appeared in Transportation Research Record Number 950, Volume 2, Second Bridge Engineering Conference, conducted by the Transportation Research Board and the Federal Highway Administration, September 24-26, 1984. Publication of this paper sponsored by Committee on Concrete Bridges. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01419841

p. 101-113

1984

Transportation Research Record

Bridge Engineering Conference, 2nd, 1984, Washington, DC, USA

03090036593

Figures (15) ; References (21) ; Tables (2)

Bridge superstructures; Coefficients; Concrete aggregates; Concrete bridges; Heat; Heat transfer; Nonlinear systems; Temperature; Thermal stresses

Longitudinal; Nonlinearity; Thermal response

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Dec 30 1984 12:00AM