ANALYSIS OF CONCRETE BOX BEAMS USING SMALL-COMPUTER CAPACITY

Following the generalized co-ordinate method of Vlasov, simple beam theory has been extended to treat torsional, distortional and shear-lag effects in straight, thin-walled box beams of uniform section. Single-cell or multi-cell sections with side cantilevers can be analysed, and the structure can be single-span or continuous. Examples suitable for use in design are given, and all the calculations have been performed on a non-programmable hand calculator. Comparisons are made with the results of finite strip and finite element computations. It is expected that, when the method of hand analysis has been programmed, computing times will be so short that interactive design procedures will become feasible, making it possible to develop relatively simple design rules which take adequately into consideration the types of structural action specific to box beams. A physical understanding of box-beam behaviour is facilitated by the use of the theory given here. As the elastic solution developed satisfies equilibrium, it can be factored to give a lower bound to the collapse load, for use in limit state design. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0721012531
• Corporate Authors:

  Cement and Concrete Association

  Wexham Spring
  Slough SL3 6PL, Buckinghamshire,   England 
• Authors:
  • Maisel, B I
• Publication Date: 1982-12

Media Info

• Features: Figures; References; Tables;
• Pagination: 87 p.
• Serial:
  • Library Bibliography Series
  • Issue Number: 5
  • ISSN: 185112-002-5

Subject/Index Terms

• TRT Terms: Beams; Box beams; Box girders; Bridge design; Bridges; Cantilevers; Computer graphics; Computers; Concrete; Deformation; Design; Failure; Finite element method; Hand; Loads; Mathematical analysis; Mechanical elasticity; Minicomputers; Shear strength; Structural analysis; Structural design; Structural mechanics; Torsion; Ultimate load design
• Uncontrolled Terms: Concrete beams; Interactive graphics; Shear lag; Structural behavior
• ITRD Terms: 6471: Analysis (math); 3474: Box girder; 3450: Cantilever; 4755: Concrete; 5595: Deformation; 9011: Design (overall design); 8673: Digital computer; 5912: Elasticity; 5520: Failure; 6490: Finite element method; 2002: Hand (human); 5567: Load; 5531: Shear; 5512: Torsion
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00399436
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0 7210 1253 1
• Files: ITRD, TRIS
• Created Date: Aug 25 2004 2:43AM