DETERMINING STRESS IN CONCRETE STRUCTURES, FURTHER NOTES ON THE METHOD OF IDENTICAL STRAINS. PART 2

IN THE SECOND PART OF THE ARTICLE FURTHER CASES OF THE APPLICATION OF THE METHOD OF IDENTICAL STRAINS ARE DISCUSSED. IN THESE CASES, WHICH CONCERN THE CONSTRUCTION OF BRIDGES, TEST SPECIMENS ARE CAST ON SITE AND LOADED IN LABORATORY CREEP RIGS IN ORDER TO ASSESS THE STRESS IN VARIOUS SECTIONS OF THE BRIDGE CONSTRUCTION. THE RESULTS OF THESE TESTS SHOW THAT THE SEASONAL VOLUME CHANGES WHICH OCCUR IN CONCRETE STRUCTURES MAKE THE METHOD OF IDENTICAL STRAINS A NECESSITY WHEN ESTIMATING STRESSES FROM MEASURED STRAINS THAT OCCUR DURING PRESTRESSING OPERATIONS. IT WAS CONCLUDED THAT THE METHOD, PREVIOUSLY DISCUSSED, OF WATERPROOFING SPECIMENS BY BONDING WITH A WATERPROOFING MEMBRANE, HAS BEEN SHOWN TO GIVE SIMILAR SHRINKAGE IN THE SPECIMENS TO THAT IN THE STRUCTURE AND HAS THEREFORE BEEN ADOPTED FOR USE WITH THE METHOD OF IDENTICAL STRAINS.

• Authors:
  • TYLER, R G
• Publication Date: 1971-7

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 761-4
• Serial:
  • Civil Eng & Public Works Review /UK/
  • Volume: 66
  • Issue Number: 780

Subject/Index Terms

• TRT Terms: Bridges; Cast in place structures; Construction; Deformation; Prestressed concrete; Seasons; Shrinkage; Stresses; Waterproofing materials
• Uncontrolled Terms: Seasonal variations
• Subject Areas: Bridges and other structures; Construction; Highways; Materials;

Filing Info

• Accession Number: 00214372
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: TRIS
• Created Date: Sep 25 1972 12:00AM