Repair/Retrofit Anchorage Designs for Bridge Rails

Williams, William F.{25227}; Buth, C. Eugene{55355}; Menges, Wanda L.; Texas A&M Transportation Institute

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Repair/Retrofit Anchorage Designs for Bridge Rails

2007-03-01
By Williams, William F.{25227} ; Buth, C. Eugene{55355} ; Menges, Wanda L.

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English

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Alternative Title:

dhesive Anchors for Retrofit/Repair of Bridge Rails
Creators:

Williams, William F.{25227} ; Buth, C. Eugene{55355} ; Menges, Wanda L.

Williams, William F.{25227} ; Buth, C. Eugene{55355} ; Menges, Wanda L. Less -
Corporate Creators:

Texas A&M Transportation Institute
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Bridge Railings Bridges And Other Structures Design Durability Durability Tests Epoxy Resins Highways I24: Design Of Bridges And Retaining Walls Repairing Retrofitting
Publication/ Report Number:

FHWA/TX-06/0-4823-T1-1 ; Report 0-4823-T1-1

FHWA/TX-06/0-4823-T1-1 ; Report 0-4823-T1-1 Less -
Resource Type:

Tech Report
Geographical Coverage:

Texas ; United States

Texas ; United States Less -
TRIS Online Accession Number:

01047429
Edition:

Technical Report September 2003 – May 2006
Corporate Publisher:

Texas A&M Transportation Institute
Abstract:

This project focused on developing alternative rail anchorage systems for the T501 and T203 bridge rail systems. The project considered only epoxy adhesive anchoring systems for each of these railings, for use in repair and retrofit situations. Strength data on the existing T501R “bolt-through” retrofit design is not well-defined. A tested retrofit design for the T203 did not exist at the time of starting this project. During this project, documented data on the strength characteristics of the conventionally anchored T501 and T203 bridge rail systems were obtained. These data were analyzed and used to develop alternate rail anchorage systems for both the T501 and T203 bridge rails. Long-term durability of epoxy anchoring systems was also considered based on information provided by the epoxy adhesive manufacturer. The retrofit/repair strengths from the dynamic and static testing for both the T501 and the T203 compared very closely to the dynamic and static strengths of the conventionally anchored (As-Is) strengths capacities. In summary, the strengths of the retrofit designs were very close and in some tests exceeded the calculated capacities of the bridge rails. The static strengths were very close to the dynamic 50 millisecond average strengths recorded from the dynamic tests. The new retrofit/repair designs developed and tested for this project are recommended for implementation for use on any new or existing bridge projects. The use of commercial adhesive anchor systems (Hilti RE 500 Adhesive Anchoring System) was very successful in achieving the strengths needed to adequately anchor the retrofit/repair reinforcement for both the T501 and the T203 bridge rails. The information learned from this project can be used to retrofit and repair other bridge rail designs in the future.
Format:

PDF
Funding:

Project 0-4823-T1
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:ca82060329dfe31d654e7d6907b988b29f40591a2851b172707330a27f7255cc
Download URL:

https://rosap.ntl.bts.gov/view/dot/37988/dot_37988_DS1.pdf
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Repair/Retrofit Anchorage Designs for Bridge Rails

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