Limit Value of T-Shape Prestressed Concrete Bridge for Traffic Safety

Based on the theory of energy random analysis for train derailment, the safety of running trains on five bridges of which lateral vibration amplitudes surpass limit values given by existing code is analyzed. The calculated results manifest that the existing limits value of bridge lateral vibration amplitude for traffic safety are too conservative. A new method for establishing the limit value of bridge lateral vibration amplitude for traffic safety is proposed on the basis of the analysis theory for train derailment. The detailed steps of the method included presentation of condition for derailment prevention determination of the critical system of beam and pier for derailment prevention, and calculations of limit value of bridge lateral vibration amplitude of the system of beam and pier for traffic safety. With the method, the limit values of lateral vibration amplitude for traffic safety of 32 m and 24 m long T-shape prestressed concrete bridge are determined as L/3980 and L/4411 respectively. Finally, L/4500 is determined as the recommended limit value of lateral amplitude of T-shape prestressed concrete bridge for traffic safety.

• Record URL:
  https://doi.org/10.1061/41039(345)214
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784410394
• Supplemental Notes:
  • © 2009 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Zhou, Zhihui
  • Zeng, Qingyuan
• Conference:
  • Second International Conference on Transportation Engineering
  • Location: Chengdu , China
  • Date: 2009-7-25 to 2009-7-27
• Publication Date: 2009-7

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1293-1298
• Monograph Title: International Conference on Transportation Engineering 2009

Subject/Index Terms

• TRT Terms: Concrete bridges; Derailments; Prestressed concrete; Railroad bridges; Traffic safety; Vibration
• Geographic Terms: China
• Subject Areas: Bridges and other structures; Railroads; Safety and Human Factors; I80: Accident Studies;

Filing Info

• Accession Number: 01529812
• Record Type: Publication
• ISBN: 9780784410394
• Files: TRIS, ASCE
• Created Date: Nov 12 2013 1:38PM