LIMIT STATE DESIGN OF A COMPOSITE BOX GIRDER BRIDGE

Composite steel and concrete box girder bridges designed according to rules developed by Mattock, Johnston and others from an elastic folder plate method of analysis are rapidly replacing composite plate girder construction for bridges of moderate span. This paper describes an investigation into the load factors given by a typical bridge designed to such rules when analyzed according to limit state criteria. Critical limit states are determined and it is shown that the rules give a design that has load factors less than unity for some limit states and unnecessarily large for others. It is shown that if the bridge were redesigned to limit state criteria, a saving of 12 percent would be possible. This is a somewhat smaller saving than can be made by applying the same methods to more traditional forms of construction. /Author/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 294-318
  • Serial:
    • Volume: 6
    • Issue Number: Pt5

Subject/Index Terms

Filing Info

  • Accession Number: 00261427
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Oct 22 1974 12:00AM