Experimental Evaluation of Dynamic Amplification Factor for Box Culverts

It is well established that moving traffic imparts a dynamic pulse through bridges and bridge type structures. Many times this pulse induces force effects greater than those produced by static loads alone. In order to account for these effects, codified specifications for bridge design and condition evaluation call for the use of a dynamic amplification factor (DAF) to be applied to static loads. The DAF can be experimentally determined by dividing a structure’s maximum dynamic response by its static response. This factor has been studied in depth for conventional bridge types, however little research has been conducted on buried bridge structures, culverts, and pipes. In this study the dynamic response of reinforced concrete box culverts is measured and compared to the culvert’s static response. Results suggest that current specifications mandate overly conservative values for DAF in some instances.

• Supplemental Notes:
  • This paper was sponsored by TRB committee AFF70 Standing Committee on Culverts and Hydraulic Structures.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Wells, Andrew
  • Shenton III, Harry W
  • Manahiloh, Kalehiwot Nega
  • Wenczel, Gary
• Conference:
  • Transportation Research Board 96th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2017-1-8 to 2017-1-12
• Date: 2017

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 15p
• Monograph Title: TRB 96th Annual Meeting Compendium of Papers

Subject/Index Terms

• TRT Terms: Box culverts; Dynamic loads; Field tests; Reinforced concrete; Specifications
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01626572
• Record Type: Publication
• Report/Paper Numbers: 17-06223
• Files: TRIS, TRB, ATRI
• Created Date: Feb 27 2017 9:25AM