TEMPERATURE DIFFERENCES IN BRIDGES: BASIS OF DESIGN REQUIREMENTS

It is shown how the magnitude of temperature differences in both concrete bridge decks and the concrete deck slabs of composite bridge decks under various depths of surfacing may be determined by using a simple modification to the method of calculation of bridge temperatures described in TRRL Report LR 561. Empirical methods are used to estimate the magnitude of temperature differences in the steel areas of composite decks and in steel box decks. Values of effective bridge temperatures likely to co-exist with maximum positive and reversed temperature differences are given, and the influence of depth of surfacing on minimum and maximum effective bridge temperatures is discussed. The clauses relating to temperature differences in a new British Standards Institution document on bridge loading, BS 5400, are based on the information contained in this Report, and the Department of Transport Technical Memorandum No. BE1/77 is to be revised to include this information. /Author/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • EMERSON, M
• Publication Date: 1977

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 39 p.

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge design; Bridges; Concrete; Loads; Slabs; Steel; Structural design; Surfacing; Temperature
• Uncontrolled Terms: Loading
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00174436
• Record Type: Publication
• Report/Paper Numbers: TRRL Lab Report 765
• Files: TRIS, ATRI
• Created Date: Jun 14 1978 12:00AM