MODEL ANALYSIS AND DESIGN OF CABLE STAYED BRIDGES

THE USE OF MODELS AS A DIRECT AID IN ANALYSIS AND DESIGN OF CABLE STAYED BRIDGES HAS BEEN INVESTIGATED. SUCH BRIDGES DISPLAY NONLINEAR BEHAVIOR BECAUSE OF LARGE DISPLACEMENTS AND BENDING MOMENT AXIAL FORCE INTERACTION. TO EVALUATE THE INTERNAL STRESSES AND DISPLACEMENTS UNDER THE ACTION OF DEAD AND LIVE LOADS, THE MODEL ANALYSIS WAS PERFORMED IN TWO STAGES. IN THE FIRST STAGE, THE BEHAVIOR OF THE STRUCTURE WAS ASSUMED TO BE LINEAR. IN THE SECOND STAGE, THE DATA OBTAINED ON THE BASIS OF LINEARITY WERE ADJUSTED TO TAKE INTO ACCOUNT THE ACTUAL NONLINEAR BEHAVIOR. TO REDUCE STRESSES AND DISPLACEMENTS DUE TO DEAD LOAD BY POSTTENSIONING THE CABLES, A PROCEDURE WAS DEVELOPED TO DETERMINE THE MAGNITUDE OF THE POSTTENSIONING FORCES REQUIRED IN CABLES TO ATTAIN THE REDUCTION SPECIFIED. THE EXPERIMENTAL DATA OBTAINED AS A RESULT OF THE MODEL INVESTIGATION WERE COMPARED WITH A THEORETICAL ANALYSIS PERFORMED ON THE CDC 3300 DIGITAL COMPUTER. /AUTHOR/

• Supplemental Notes:
  • Proc Vol 48, PAPER 7375, PP 439-464
• Authors:
  • Troitsky, M S
  • Lazar, B E
• Conference:
  • Inst Civil Engineers Proc, London /UK/
• Publication Date: 1971-3

Subject/Index Terms

• TRT Terms: Analysis; Bridge design; Bridges; Cables; Dislocation (Geology); Information processing; Live loads; Nonlinear systems; Posttensioning; Static loads; Stresses; Structural design
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209435
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 2 1971 12:00AM