ULTIMATE STRENGTH OF REINFORCED CONCRETE GRID AND SLAB BRIDGES.

A METHOD BASED ON PLATIC THEORY AND INCLUDING TORSIONAL RESISTANCE IS DESCRIBED FOR ESTIMATING THE ULTIMATE LOAD OF MEDIUM-SPAN REINFORCED CONCRETE GRID AND SLAB BRIDGES. FOUR 15-FT SPAN BRIDGES WERE TESTED TO FAILURE. THE RESULTS ARE COMPARED WITH THEORETICAL VALUES BASED ON BOTH ELASTIC AND PLASTIC THEORIES. THE METHOD BASED ON PLATIC THEORY GIVES A REASONABLY GOOD ESTIMATE OF THE ULTIMATE LOAD OF THE STRUCTURE. A PROCEDURE IS DESCRIBED FOR MINIMUM-WEIGHT DESIGN OF SUCH STRUCTURES ON THE BASIS OF PLASTIC THEORY AND LINEAR PROGRAMMING. /RRL/A/

• Supplemental Notes:
  • pp 361-384, 16 FIG, 5 TAB, 4 PHOT, 16 REF
• Corporate Authors:

  Intl Symp Concr Bridge Des Proc /Can

  ,    
• Authors:
  • Pillai, S U
  • Lash, S D
• Publication Date: 1969

Subject/Index Terms

• TRT Terms: Breaking loads; Concrete bridges; Elasticity (Mechanics); Estimating; Failure; Grates; Plasticity; Reinforced concrete; Slabs; Theory; Torsion; Ultimate strength
• Old TRIS Terms: Elastic theory; Gridworks (Structures); Plastic theory; Test results
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208691
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Nov 18 1970 12:00AM