Field application of Z-spike rejuvenation to salvage timber railroad bridges.

Gutkowski, Richard M.; Miller, Nathan J.; Radford, Donald W.; Colorado State University

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.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Field application of Z-spike rejuvenation to salvage timber railroad bridges.

2011-12-01
By Gutkowski, Richard M. ; Miller, Nathan J. ; Radford, Donald W.

[PDF-17.96 MB]

Select the Download button to view the document

This document is over 5mb in size and cannot be previewed

English

Details You May Also Like

Details:

Creators:

Gutkowski, Richard M. ; Miller, Nathan J. ; Radford, Donald W.

Gutkowski, Richard M. ; Miller, Nathan J. ; Radford, Donald W. Less -
Corporate Creators:

Colorado State University
Subject/TRT Terms:

[+]

Highway Maintenance Maintenance Maintenance Practices Railroad Bridges Railroad Bridges--Maintenance And Repair Repairing Shear (Mechanics) Wooden Bridges Wooden Bridges--Maintenance And Repair
Publication/ Report Number:

MPC 11-245
Resource Type:

Tech Report
Geographical Coverage:

North Dakota
Corporate Publisher:

Mountain-Plains Consortium
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.
Format:

PDF
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:487894ca8899b5ccb92cfa5aa8b8411d691ea017e8bbe4f8b7764cd3e3f8a85f
Download URL:

https://rosap.ntl.bts.gov/view/dot/24186/dot_24186_DS1.pdf
File Type:

No Additional Files

More +

Field application of Z-spike rejuvenation to salvage timber railroad bridges.

Details:

Supporting Files

You May Also Like