TEMPERATURE DISTRIBUTION AND RESULTING DEFORMATIONS IN PRESTRESSED CONCRETE BEAMS

LA DISTRIBUCION DE TEMPERATURA Y SUS COMPONENTES DE DEFORMACION EN VIGAS DE CONCRETEO PRETENSADO

This article describes a detailed study of temperature distribution and deformation of prestressed concrete box girders, 35 and 46 M long, which were used to build the deck of the bridge over the maracaibo lake. Temperatures were measured with electronic contact thermometers, and deformations caused by variations in temperature were recorded with strain gauges and observations of vertical movements. The results show that temperature distribution in the cross-section of the girder tends to be parabolic. There exists a phase difference between the extreme values of temperature and deformation. /TRRL/

• Corporate Authors:

  Instituto de Materiales y Modelos Estructurales

  Univ Central de Venezuela; Apartado 50,361 Sabana Grande
  Caracas,   Venezuela 
• Authors:
  • GUNTHER, A
• Publication Date: 1969-7-9

Language

• Spanish

Media Info

• Features: Figures; References;
• Pagination: p. 39-73
• Serial:
  • IMME Boletin Tecnico
  • Issue Number: 27

Subject/Index Terms

• TRT Terms: Beams; Box girders; Bridge decks; Deformation; Measuring instruments; Motion; Prestressed concrete; Prestressing; Strain gages; Temperature
• Uncontrolled Terms: Temperature distribution
• Geographic Terms: South America; Venezuela
• ITRD Terms: 6155: Apparatus (measuring); 3472: Beam; 3474: Box girder; 3455: Bridge; 5586: Deflection; 5595: Deformation; 9016: Distribution (gen); 6720: Expansion; 4796: Prestressed concrete; 6722: Temperature
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00097057
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jul 24 1975 12:00AM