NONLINEAR ANALYSIS OF GRID SYSTEMS

A method is proposed for the nonlinear analysis of grid systems. The structure is loaded incrementally and the current stiffness matrices of each member are evaluated using a numerical procedure and the moment-curvature and torsion-twist relationships of the grid elements. The member stiffness matrices are used to develop the global stiffness matrix of the grid structure. In other respects, the method is very much similar to linear elastic analysis of grid framework. A bridge structure is analyzed using a computer program, developed by incorporating the proposed method. The program is able to predict the nonlinear characteristics of the structure such that it can reduce the girder moments and (or) the total material costs.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03151468
• Corporate Authors:

  National Research Council of Canada

  Research Journals
  Ottawa, Ontario K1A 0R6,   Canada 
• Authors:
  • Tharmabala, T
• Publication Date: 1989-6

Media Info

• Features: Figures; References;
• Pagination: p. 300-307
• Serial:
  • Canadian Journal of Civil Engineering
  • Volume: 16
  • Issue Number: 3
  • Publisher: National Research Council of Canada
  • ISSN: 0315-1468
  • Serial URL: http://www.nrcresearchpress.com/loi/cjce

Subject/Index Terms

• TRT Terms: Breaking loads; Bridges; Computer programs; Costs; Grids (Transmission lines); Nonlinear systems; Stiffness; Structural analysis
• Old TRIS Terms: Slab-on-girder
• Subject Areas: Bridges and other structures; Finance; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00486837
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 31 1989 12:00AM