LATERAL LOAD EFFECTS IN INSTABILITY PROBLEMS

STRUCTURES LIABLE TO AN EULER TYPE INSTABILITY ARE EXAMINED, AND THE EFFECTS OF APPLIED LATERAL LOADINGS, WHICH REMAIN FIXED IN MAGNITUDE AND DIRECTION, ARE CONSIDERED. WORKING RULES, WHICH CAN BE USED TO DESCRIBE THE BEHAVIOR, AND HENCE USED IN THE DESIGN OF THROUGH BRIDGES OR BEAM STRUCTURES, ARE EVOLVED, WHILE A SERIES OF IMPROVING MATHEMATICAL MODELS OF REAL STRUCTURAL BEHAVIOUR ARE DEVELOPED. THE STUDY OF LATERAL AND TORSIONAL LOADINGS EFFECTS ON EXTREME INSTABILITY DEFORMATION FOR THROUGH BRIDGES HAS SHOWN THAT THESE BRIDGES DEFORM MAINLY THROUGH THE BENDING ACTION OF THE FLOOR BEAMS AND THESE LOADINGS DO CHANGE THE STIFFNESS OF THE LOADED SYSTEM. A METHOD FOR DESCRIBING THE DEFORMATIONS SUSTAINED BY THE COMBINED LOADING IS OUTLINED. FOR BRIDGES WHICH DEFORM MAINLY THROUGH THE BENDING ACTION OF THE SIDE WEBS, LATERAL LOADINGS DO NOT REINFORCE THE INSTABILITY EFFECTS, AND HENCE, THE DEFORMATIONS FROM THE COMBINED LOADINGS SHOULD BE OBTAINED BY LINEAR SUPERPOSITION.

• Supplemental Notes:
  • Vol Ce Ii, NO 1, PP 47-52, 9 FIG, 1 TAB, 4 REF, 3 APP
• Authors:
  • Kjar, A R
• Publication Date: 1969-4

Media Info

• Serial:
  • Inst Engrs Civil Eng Trans /Australia/

Subject/Index Terms

• TRT Terms: Beams; Bending; Bridge design; Bridges; Deformation; Instability; Loads; Mathematical models; Structural analysis; Structural design; Structural mechanics; Struts; Torsion
• Uncontrolled Terms: Lateral loads; Loading; Structural behavior
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209178
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 30 1970 12:00AM