DEVELOPMENT OF LOAD RATING PROCEDURES FOR U.S. MASONRY ARCH BRIDGES

A service load testing program involving seven stone arch bridges in the State of Ohio has been conducted. The results of the testing program have indicated for the most part linear responses from in-service masonry arch structures, even at loads well above the calculated collapse load for the arch ring alone. The analysis of the structures by linear elastic frame analysis has shown the ability of this type of analysis to match the response of stone arch structures in the linear range. Because of the ability to match the actual response in the area of interest, land because it is within the grasp of all practicing structural engineers, linear elastic frame analysis is proposed as a tool for the rating of stone arch highway bridges. The strength of the arch ring can be determined by drawing an envelope of its full plastic capacity for a realistic value of the strength of the masonry. The strength of the structure is found to depend heavily on the stiffness of the abutments, and very little on the elastic modulus of the masonry. The stiffening effect of spandrel walls and fill can be accounted for by allowing the thrust line to pass a slight distance out of the back of the arch ring. Reasonable values are advanced for the elastic constants and the strength of the masonry, but further testing is required to validate the use of these values. For the covering abstract see ITRD E111699.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0947644320
• Corporate Authors:

  ENGINEERING TECHNICS PRESS

  46 CLUNY GARDENS
  EDINBURGH,   United Kingdom  EH10 6BN
• Authors:
  • Boothby, T E
  • LAMAN, J A
• Conference:
  • PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON STRUCTURAL FAULTS AND REPAIR, HELD THE ASSEMBLY ROOMS, EDINBURGH, UK, 8 JULY 1997. VOL 1: EXTENDING THE LIFE OF BRIDGES
• Publication Date: 1997

Language

• English

Media Info

• Features: References;
• Pagination: p. 179-87

Subject/Index Terms

• TRT Terms: Arch bridges; Conferences; Elasticity (Mechanics); Evaluation and assessment; Loads; Masonry construction; Strength of materials
• ITRD Terms: 3427: Arch bridge; 8525: Conference; 5912: Elasticity; 9020: Evaluation (assessment); 5567: Load; 4529: Masonry; 5544: Strength (mater)
• Subject Areas: Data and Information Technology; Planning and Forecasting;

Filing Info

• Accession Number: 00824034
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-947644-32-0
• Files: ITRD
• Created Date: Feb 6 2002 12:00AM