OPTIMUM DESIGN STEEL COMPOSITE GIRDERS

STEELS HAVING A VARIETY OF YIELD POINTS ARE NOW AVAILABLE TO THE CONSTRUCTION INDUSTRY, ALLOWING THE DESIGNER TO CHOOSE STRENGTH AS WELL AS SIZE TO MEET DESIGN REQUIREMENTS. THE USE OF A VARIETY OF STEEL STRENGTHS IN CONTINOUS, WELDED, COMPOSITE PLATE GIRDER BRIDGES IS BEING STUDIED TO PRODUCE MINIMUM COST STRUCTURES. THE SOLUTION WHICH IS REPORTED OBTAINS THE OPTIMUM DESIGN OF A GIRDER SUBJECT TO THE STANDARD SPECIFICATIONS OF THE AMERICAN ASSOCIATION OF STATE HIGHWAY OFFICIALS. SPAN LENGTHS, MATERIAL PROPERTIES, CONCRETE DECK DIMENSIONS, AND COST INFORMATION ON STEEL TYPES AND ON SPLICING OPERATIONS MUST BE GIVEN. THE CAPABILITY SELECTS THE OPTIMUM COMBINATION OF WEB HEIGHT, FLANGE WIDTH, PLATE THICKNESSES, AND THE ARRANGEMENT OF STEEL TYPES FOR A CONTINOUS GIRDER OF CONCTANT DEPTH. AN ITERATIVE SCHEME IS USED BETWEEN THE MATERIAL AND SPLICE LOCATION SELECTION AND THE DETERMINATION OF THE BEST WEB DEPTH AND FLANGE WIDTH. RESULTS ARE GIVEN FOR EXAMPLE PROBLEMS CONSIDERING SEVEN AVALILABLE STEELS FOR THE DESIGN OF A COMPOSITE PLATE GIRDER. /AUTHOR/

• Supplemental Notes:
  • Vol 92,no ST6,PROC PAPER 5001,PP 3-24
• Authors:
  • Goble, G G
• Publication Date: 1966-12

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge members; Composite structures; Concrete; Continuous structures; Costs; Design; Dimensional analysis; Economics; Flanges; Girder bridges; Joints; Length; Materials; Optimization; Plate girders; Splicing; Steel; Strength of materials; Structural plates; Webbing; Welds
• Uncontrolled Terms: Bridge spans; Plates; Welded joints
• Old TRIS Terms: Dimensional measurement; Optimum design
• Subject Areas: Bridges and other structures; Design; Economics; Finance; Highways; Materials;

Filing Info

• Accession Number: 00208267
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 6 1994 12:00AM