NONLINEAR RESPONSE OF COMPOSITE STEEL-CONCRETE BRIDGES

This paper is concerned with the overload behavior of a composite beam-slab type highway bridge consisting of steel stringers supporting a cast-in-place reinforced concrete slab. A nonlinear finite element analysis is used to determine the complete state of stress and deformation at any level of overload. A layered model together with an incremental iterative procedure is employed to determine the response of the bridge in the post-elastic range. The results of this analysis are compared with available experimental results for the case of a simply supported bridge. The bridge response under overloads is investigated and the effects of some major design parameters are studied. Among these parameters are: beam size, torsional constant, slab thickness, Poisson's ratio, yield stress of steel girders and the ratio of transverse to longitudinal stiffness of the slab. The results obtained from this computer analysis compare favorably with experimental results in the elastic and the post-elastic range.(a) /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00457949
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • WEGMULLER, A W
  • Amer, H N
• Publication Date: 1977-4

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 161-169
• Serial:
  • Computers and Structures
  • Volume: 7
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0045-7949

Subject/Index Terms

• TRT Terms: Beams; Bridge decks; Bridges; Cast in place structures; Composite structures; Computer programs; Concrete bridges; Deflection; Elasticity (Mechanics); Finite element method; Loads; Mathematical models; Oversize loads; Poisson ratio; Reinforced concrete; Slabs; Steel; Stresses; Stringers; Structural analysis
• Uncontrolled Terms: Composite bridges; Models; Overloads
• Old TRIS Terms: Poissons ratio
• ITRD Terms: 3472: Beam; 3455: Bridge; 3482: Bridge deck; 5586: Deflection; 5567: Load; 4794: Reinforced concrete; 3491: Slab; 8645: Software; 5573: Stress analysis
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00159792
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Analytic
• Files: ITRD, TRIS
• Created Date: Apr 12 1978 12:00AM