SHEAR FORCES IN EDGE ZONES OF CONCRETE SLABS

The design of slabs is dependent on an understanding of the manner in which internal forces and moments are mobilised. The paper examines linear slab behaviour in zones near free edges. It is shown that analysis based on thick-plate theory provide predictions consistent with test data and 3-dimensional analysis, whereas analyses based on classical or thin-plate theory do not. Two cases are examined in which design against shear failure can be critical. These are a skew bridge slab and a flat building slab. In both cases, the internal actions are shown to be different to those commonly assumed. It is shown that finite element analysis, using the heterosis formulation for `thick-plate' theory, requires a mesh considerably finer than that commonly used in edge zones for reliable results to be provided. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14665123
• Corporate Authors:

  Institution of Structural Engineers

  11 Upper Belgrave Street
  London,   United Kingdom  SW1X 8BH
• Authors:
  • Cope, R J
  • Rao, P V
• Publication Date: 1984-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 87-92
• Serial:
  • Structural Engineer
  • Volume: 62A
  • Issue Number: 3
  • Publisher: Institution of Structural Engineers
  • ISSN: 1466-5123

Subject/Index Terms

• TRT Terms: Analysis; Bridge decks; Concrete; Failure; Finite element method; Linear systems; Mathematical models; Shear strength; Shear stress; Skew bridges; Slabs; Structural plates; Thin plates
• Uncontrolled Terms: Edges; Shear forces; Thick plates
• ITRD Terms: 3482: Bridge deck; 4755: Concrete; 5520: Failure; 6490: Finite element method; 6484: Linear system; 6473: Mathematical model; 5531: Shear; 3491: Slab
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00386071
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Jul 30 1984 12:00AM