Welcome to ROSA P | Field application of Z-spike rejuvenation to salvage timber railroad bridges. - 24186 | US Transportation Collection
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Field application of Z-spike rejuvenation to salvage timber railroad bridges.
  • Published Date:
    2011-12-01
  • Language:
    English
Filetype[PDF-17.96 MB]


This document cannot be previewed automatically as it exceeds 5 MB
Please click the thumbnail image to view the document.
Field application of Z-spike rejuvenation to salvage timber railroad bridges.
Details:
  • Corporate Creators:
  • Publication/ Report Number:
    MPC 11-245
  • Resource Type:
  • Geographical Coverage:
  • OCLC Number:
    792963712
  • Corporate Publisher:
  • NTL Classification:
    NTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and Structures ; NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance ;
  • Format:
  • Abstract:
    The technique of rejuvenating wood and timber members by shear spiking (vertically inserting fiberglass reinforced polymer rods into deteriorated members) evolved over several years of laboratory research at Colorado State University (CSU). Specimens, including layered or split nominal 2 x 4 members, full-scale wood railroad ties, intentionally damaged individual railroad bridge stringers, a full-scale three span bridge chord, and deteriorated/damaged bridge stringers and chords obtained from the field were successfully enhanced in stiffness by the application. The successful stiffening of such members in the laboratory led to the need to examine the application of the technique in actual bridges in the field.

    This report details the outcomes of shear spiking two open-deck, timber trestle railroad bridges and examining the effectiveness under applied loading. The bridges were made available to the researchers by the Union Pacific Railroad and were located in their Southern Region. The first site was located in the vicinity of Houston, Texas, specifically in Eagle Lake - a region of typically hot, humid climate, albeit being cool, damp, and sometimes rainy, conditions at the time of the study. The second site was located in the vicinity of Midland, Texas, specifically Stanton, Texas - in an extremely hot, dry climate at the time of the study. Each bridge was multi-span, but only one span was shear spiked in each case. Also, each was located along an in-service mainline railroad track and, due to rated physical condition, were scheduled to have their stringers replaced, making them available for experimentation but on a relatively fast-fuse basis.

  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like:
Submit Feedback >