EFFECTS OF DIFFERENTIAL TEMPERATURE ON CONTINUOUS PRESTRESSED CONCRETE BRIDGES

DIFFERENTIAL TEMPERATURE VARIATIONS ACROSS A CONCRETE BOX SECTION, CAUSED BY THE TOP SLAB HEATING UP FASTER THAN THE SOFFIT, MAY INDUCE UNDESIRABLE STRESSES AND DEFLECTIONS, PARTICULARLY DURING CONSTRUCTION, IN CONTINUOUS PRESTRESSED CONCRETE BRIDGES. AN EQUIVALENT LINEAR TEMPERATURE DISTRIBUTION IS USED TO CALCULATE THE STRESSES AND DEFLECTIONS PRODUCED, THEIR MAGNITUDE BEING DEPENDENT UPON THE TEMPERATURE DIFFERENCE, THE COEFFICIENT OF LINEAR EXPANSION, THE DEPTH OF THE CROSS SECTION AND THE DEGREE OF INDETERMINANCY OF THE STRUCTURE. /RRL(A)/

• Supplemental Notes:
  • Vol Ce 12, NO 1, PP 29-32, 7 FIG, 5 REF
• Corporate Authors:

  Civil Engineering Trans /Australia

  ,    
• Authors:
  • Maher, D R
• Publication Date: 1970-4

Subject/Index Terms

• TRT Terms: Box girders; Bridges; Continuous structures; Cross sections; Deflection; Expansion; Linear elasticity; Prestressed concrete; Stresses; Temperature; Thermal expansion
• Uncontrolled Terms: Temperature distribution
• Old TRIS Terms: Linear expansion
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208718
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Jul 18 1971 12:00AM