THE PERFORMANCE OF MODEL COMPOSITE BRIDGE DECKS CONSTRUCTED WITH OPEN SANDWICH SLABS

A new form of lightweight roadway deck for composite bridges utilising externally reinforced concrete is proposed. Tests to destruction on four quarter-scale model bridge decks incorporating both open sandwich and inverted catenary deck slabs are described. The choice of an appropriate adhesive to form the necessary shear connection between concrete and steel is vital. The three decks constructed with such an adhesive exhibited at collapse a factor of safety of three over design hb load. The fourth deck failed at twice the design load. With inverted catenary decks sufficient horizontal restraint is developed to reduce the crown bending moment to 30% of that expected in a simple beam, but the critical failure mechanism is punching shear. The open sandwich deck exhibited a ductile failure with extensive yielding of the soffit plate. Finite element calculations are shown to provide a reasonable prediction of behaviour within the elastic range. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02625075
• Corporate Authors:

  Construction Press

  Longman House, Burnt Mill
  Harlow, Essex CM20 2JE,   England 
• Authors:
  • MAYS, G C
  • Ong, KCG
  • Wong, C K
  • CUSENS, A R
• Publication Date: 1983-8

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 151-163
• Serial:
  • International Journal of Cement Composites and Lightweight Concrete
  • Volume: 5
  • Issue Number: 3
  • Publisher: Longman Group UK Limited
  • ISSN: 0262-5075

Subject/Index Terms

• TRT Terms: Adhesives; Bending moments; Bridge decks; Composite materials; Composite structures; Concrete; Cracking; Ductility; Epoxy resins; Failure; Fasteners; Finite element method; Glue; Platens; Puncture resistance; Reinforced concrete; Sandwich construction; Scale models; Shear reinforcement; Shear stress; Slabs; Steel; Strength of materials; Structural models; Test procedures; Tests
• Uncontrolled Terms: Punching shear; Shear connectors
• Old TRIS Terms: Finite elements
• ITRD Terms: 3482: Bridge deck; 9005: Composite; 4755: Concrete; 5211: Cracking; 7468: Epoxy resin; 5520: Failure; 4539: Glue; 6205: Model (not math); 3491: Slab; 4542: Steel; 5544: Strength (mater); 6255: Test; 6288: Test method
• Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00381194
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM