INFLUENTIAL MODE OF IMPERFECTION OF CARRYING CAPACITY OF STRUCTURES

The development is described of a relatively simple procedure to obtain the mode of imperfection that causes the maximum reduction in the carrying capacity of a discretized structure from that of the corresponding perfect structure. The problem is formulated as an optimization problem of the loading intensity with nonlinear equality constraints. The constraint equations consist of nonlinear equilibrium equations, the singularity of tangential stiffness matrix, and the norm of imperfections. This optimization problem can be transformed into solving a system of simultaneous nonlinear equations that is relatively easier to solve. The method has been applied successfully to plane and space truss examples.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/07339399
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Nishino, F
  • Hartono, W
• Publication Date: 1989-10

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 2150-65
• Serial:
  • Journal of Engineering Mechanics
  • Volume: 115
  • Issue Number: 10
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9399
  • EISSN: 1943-7889
  • Serial URL: http://ascelibrary.org/journal/jenmdt

Subject/Index Terms

• TRT Terms: Bearing capacity; Equations; Equilibrium methods (Structural analysis); Stiffness; Structural analysis; Trusses
• Uncontrolled Terms: Structural adequacy
• Old TRIS Terms: Equilibrium methods, structural; Imperfection mode
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00489390
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 30 1989 12:00AM