LOAD DISTRIBUTION IN SKEWED BRIDGES TREATED IN SPACE

Four simply-supported skewed railway bridges of the same span, but with various angles of skew, were studied. The bridges were composed of two main girders connected together by two end transverse bracings and an upper and a lower wind bracing. Maximum bending moments in the main girder, and reactions and forces in the bracings were obtained for a vertical load moving along the center line of the bridge by using the ordinary planar method of calculation, and by treating them as space structures. The maximum bending moments decrease significantly with the decrease in the angle of skew, as do the reactions at the acute end, while at the obtuse ends, a considerable increase in reaction occurs. The values of the bending moments and reactions are presented in tables as a function of the skew. The end transverse bracings and wind bracings are subject to enormous horizontal forces due to vertical loading. The calculation of these forces is possible only by treating the bridges as space structures, and they are plotted as a function of the angle of skew.

• Corporate Authors:

  Marcel Dekker, Incorporated

  270 Madison Avenue
  New York, NY  United States  10016
• Authors:
  • Aggour, M S
• Publication Date: 1979

Media Info

• Features: References;
• Pagination: p. 185-206
• Serial:
  • Journal of Civil Engineering Design
  • Volume: 1
  • Issue Number: 2
  • Publisher: Marcel Dekker, Incorporated

Subject/Index Terms

• TRT Terms: Bending moments; Bridge design; Bridges; Design; Girder bridges; Structural design
• Uncontrolled Terms: Design criteria
• Old TRIS Terms: Skew
• Subject Areas: Bridges and other structures; Design; Railroads;

Filing Info

• Accession Number: 00325901
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Feb 18 1981 12:00AM