ON THE EFFECT OF THERMAL STRESSES CAUSED BY SUNLIGHT IN MULTI-SPANNED PRESTRESSED CONCRETE FRAME BRIDGE

THERMAL STRESSES CAUSED BY SEASONAL TEMPERATURE CHANGES HAVE BEEN WIDELY STUDIED & METHODS OF CALCULATION HAVE BEEN ESTABLISHED AS DESIGN CRITERIA. STUDIES OF THERMAL STRESS DUE TO DAILY TEMPERATURE CHANGE OR UNEVEN DISTRIBUTION OF TEMPERATURE, HOWEVER, ARE VERY FEW. TO KNOW THE EFFECTS OF TEMPERATURE CHANGES CAUSED BY DIRECT SUNLIGHT, FIELD MEASUREMENTS OF TEMPERATURE AND DEFLECTION ON AN ACTUAL PRESTRESSED CONCRETE BRIDGE WERE CARRIED OUT. IT WAS FOUND THAT THE EFFECT OF DIRECT SUNLIGHT MUST BE TAKEN INTO CONSIDERATION IN STRUCTURAL DESIGN. A PRACTICAL METHOD FOR THE CALCULATION OF THERMAL STRESS DUE TO DIRECT SUNLIGHT IS PROPOSED.

• Corporate Authors:

  Kajima Inst Constr Tech /Japan

  ,    
• Authors:
  • IWAKI, R
  • Nakayama, M
• Publication Date: 1969

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1-8
• Serial:
  • Publication of: Kajima Inst Constr Tech /Japan/
  • Publisher: Kajima Inst Constr Tech /Japan

Subject/Index Terms

• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00210111
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: Sep 25 1972 12:00AM