Investigation of Steel-Stringer Bridges: Substructure and Superstructure, Volume II

Problems with unknown bridge foundations in Iowa are often associated with timber substructures. Timber piles are subject to biological and physical deterioration, which makes quantifying in-service pile capacity difficult. Currently there are no reliable means to estimate the residual carrying capacity of an in-service deteriorated pile; and thus, the overall safety of the bridge cannot be determined. The lack of reliable evaluation methods can lead to conservative and costly maintenance practices. This research study was undertaken to investigate procedures for assessing bridge substructures, and evaluating procedures for rehabilitating/strengthening/replacing inadequate substructure components. The report includes an extensive literature review, a field reconnaissance study of 49 bridges, a survey of substructures, and finally a laboratory study evaluating selected repair methods.

• Record URL:
  • http://publications.iowa.gov/id/eprint/19977
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/39527
• Corporate Authors:

  Iowa State University, Ames

  Center for Transportation Research and Education
  2711 South Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664

  Iowa Department of Transportation

  800 Lincoln Way
  Ames, IA  United States  50010
• Authors:
  • White, David
  • Mekkawy, Mohamed
  • Klaiber, Wayne
  • Wipf, Terry J
• Publication Date: 2007-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; References; Tables;
• Pagination: 293p

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge foundations; Bridge substructures; Bridge superstructures; Bridges; Evaluation; Laboratory studies; Literature reviews; Load tests; Nondestructive tests; Rehabilitation; Repairing; Steel; Stiffness; Stringers; Structural strengthening; Support piles; Timber
• Geographic Terms: Iowa
• Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance;

Filing Info

• Accession Number: 01081216
• Record Type: Publication
• Report/Paper Numbers: IHRB Project TR-522, CTRE Project 04-184
• Files: NTL, TRIS, STATEDOT
• Created Date: Nov 26 2007 9:55AM