ELASTIC BEHAVIOUR OF REINFORCED CONCRETE CORED AND CELLULAR BRIDGE DECKS

The purpose of this investigation was to: a) evaluate theoretically using concrete models some plate parameters ( transverse flexible stiffness, transverse shear stiffness, flexible parameter, torsional stiffness) of reinforced concrete covered and cellular bridge decks; b) study the elastic behaviour of reinforced concrete and cellular slab decks. To evaluate transverse flexible stiffness and transverse stiffness, model transverse slices of cored and cellular decks were tested under pure bending and combined bending and shear. The nature of the stress distribution across the cores and cells was also studied. Torsion tests, point load and abnormal load tests were also carried out on four model concrete slabs. Experimental results were compared and correlated with analytical results based on two dimensional finite element and grillage methods of analysis. The effects of shear deformation on the structural behaviour of the bridge decks was studied. The effects of cracking on concrete under stress, and the presence of web and tensile reinforcement in concrete were considered in the analysis. Recommended values of plate parameters for concentric and eccentric cored and cellular decks were provided as were recommendations as to the choice of aspect ratios for efficient structural arrangement and on design method. (TRRL)

• Corporate Authors:

  University of Liverpool

  Department of Civil Engineering, Brownlow Street
  Liverpool,   United Kingdom  L69 3GQ
• Authors:
  • Sawko, F
  • Banerjee, B
• Publication Date: 1973-8

Media Info

• Features: References;
• Pagination: v.p.

Subject/Index Terms

• TRT Terms: Bridge decks; Cellular structures; Deformation curve; Design; Elasticity (Mechanics); Finite element method; Fracture mechanics; Grilles; Reinforced concrete bridges; Stiffness; Structural analysis; Structural mechanics; Torsion tests
• Uncontrolled Terms: Structural behavior
• Old TRIS Terms: Grillage design
• ITRD Terms: 6471: Analysis (math); 3482: Bridge deck; 5586: Deflection; 9011: Design (overall design); 5912: Elasticity; 4502: Expanded material; 6490: Finite element method; 6205: Model (not math); 4794: Reinforced concrete; 5531: Shear; 3491: Slab; 5931: Stiffness; 5575: Stress (in material); 6255: Test; 5512: Torsion
• Subject Areas: Bridges and other structures; Design; Highways; Materials;

Filing Info

• Accession Number: 00470627
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 31 1988 12:00AM