ANALYSIS OF CONTINUOUS SKEW CONCRETE GIRDER BRIDGES

SKEW BRIDGES COMPOSED OF A DECK SLAB MONOLITHIC WITH TWO MAIN GIRDERS OVER ONE OR MORE SPANS ARE ANALYZED. IT IS SHOWN THAT WITH TORSION-STIFF GIRDERS THE SKEW ANGLE CAN HAVE CONSIDERABLE EFFECT ON THE SHEAR AND BENDING MOMENTS OF THE GIRDERS. A NUMERICAL METHOD OF ANALYSIS IS PRESENTED WHICH GIVES INFLUENCE COEFFICIENTS FOR DEFORMATION, REACTIONS, BENDING MOMENTS, SHEAR AND TORSION OF THE GIRDERS AS WELL AS THE TRANSVERSE BENDING OF THE SLAB. THE METHOD IS SUITABLE FOR DESIGN OFFICE CALCULATION. THE EFFECT OF VARIATION ON CROSS-SECTION OF THE MAIN GIRDERS OR THICKNESS OF THE SLAB AND THE EFFECT OF STIFFENING CROSS GIRDERS ARE INCLUDED. THE WHOLE PROCESS OF CALCULATION IS PROGRAMMED FOR DIGITAL COMPUTERS, AND RESULTS OF ANALYSIS OF BRIDGES WITH DIFFERENT TORSION-BENDING STIFFNESS RATIOS AND DIFFERENT SKEW ANGLES ARE PRESENTED. SAMPLES OF TEST RESULTS ON BRIDGE MODELS ARE GIVEN. TESTS INCLUDE A MODEL OF A BRIDGE WITH TOP AND BOTTOM SLABS FORMING ONE BOX SECTION. /RRL/A/

• Supplemental Notes:
  • pp 137-169, 15 FIG, 2 TAB, 1 PHOT, 19 REF
• Corporate Authors:

  Intl Symp Concr Bridge Des Proc /Can

  ,    
• Authors:
  • Ghali, A
• Publication Date: 1969

Subject/Index Terms

• TRT Terms: Bending moments; Calculation; Concrete; Cross sections; Digital computers; Girder bridges; Numerical analysis; Shear strength; Skew bridges; Skewed structures; Slabs; Stiffness; Thickness; Torsion
• Uncontrolled Terms: Computation; Skew angle
• Old TRIS Terms: Test results
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208680
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: Nov 23 1970 12:00AM