Effect of Bridge Deck on Performance of GRS Bridge Abutments

The purpose of this study is to determine how the bridge deck affects the static and dynamic performance of the geosynthetic reinforced soil (GRS) bridge abutments. This research involves a numerical model representing the realistic field conditions of GRS bridge abutments, including a reinforced soil wall and a single-span deck that laterally restrains the top of the wall, rather than an equivalent surcharge load only. The numerical simulation was used to evaluate the effects of horizontal restraint from the deck on the GRS wall displacements and reinforcement loads at the end of construction and under harmonic base acceleration. The results of the numerical analysis revealed significant differences in the performance of GRS bridge abutments under static and dynamic loading when the bridge deck effect was considered. Notably, the inclusion of a bridge deck led to a substantial reduction in facing lateral displacements, lower geogrid loads, and improved performance in terms of sill horizontal deflection and settlement.

• Record URL:
  • https://doi.org/10.1061/9780784485842.020
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784485842
• Supplemental Notes:
  • © 2024 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Alizadeh, Vahid
• Conference:
  • Geo-Structures 2024
  • Location: Pittsburgh Pennsylvania, United States
  • Date: 2024-11-17 to 2024-11-20
• Publication Date: 2024

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 212-221
• Monograph Title: Geo-Structures 2024: Innovation and Experience with Earth Retaining Structures

Subject/Index Terms

• TRT Terms: Bridge abutments; Bridge decks; Dynamic loads; Geosynthetics; Mathematical models; Mechanically stabilized earth; Retaining walls; Static loads
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways;

Filing Info

• Accession Number: 01938449
• Record Type: Publication
• ISBN: 9780784485842
• Files: TRIS, ASCE
• Created Date: Nov 30 2024 11:49AM