Seismic retrofit of cruciform-shaped columns in the Aurora Avenue Bridge using FRP wrapping.

McLean, David I.; Walkenhauer, Brian J.; Washington State University. Department of Civil and Environmental Engineering

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ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.

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Seismic retrofit of cruciform-shaped columns in the Aurora Avenue Bridge using FRP wrapping.

2010-08-01
By McLean, David I. ; Walkenhauer, Brian J.

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English

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Details:

Creators:

McLean, David I. ; Walkenhauer, Brian J.

McLean, David I. ; Walkenhauer, Brian J. Less -
Corporate Creators:

Washington State University. Department of Civil and Environmental Engineering
Subject/TRT Terms:

[+]

Bridge Design Bridges--Design And Construction Columns Columns, Concrete--Maintenance And Repair Columns, Concrete--Protection Concrete Earthquake Resistant Design Fiber-reinforced Plastics. Fiber Reinforced Plastics
Publication/ Report Number:

WA-RD 753.1
Resource Type:

Tech Report
Geographical Coverage:

Washington
Edition:

Research report.
Corporate Publisher:

Washington State University
Abstract:

Experimental tests were conducted on seven 1/3-scale column specimens to evaluate the vulnerabilities of existing cruciform-shaped columns and to develop appropriate retrofit measures that address the identified vulnerabilities. The specimens represented both solid and split columns in the Aurora Avenue Bridge in Seattle, Washington. The as-built specimens failed at low ductility levels due to shear distress. Fiber reinforced polymer (FRP) jackets with FRP inserts to anchor the jackets in the column reentrant corners along with steel confinement collars to provide confinement in the hinging regions were used to retrofit the column specimens. The retrofitted specimens developed plastic hinging in the column, with enhanced strength, energy and ductility capacities. Guidelines were presented for designing the various components of the retrofit measures.
Format:

PDF
Funding:

T4120-15
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:c31ff6a8d7913341a8ebf9fc14e86b6b88c103b99f1700b6f35ce09c9e6cb69b
Download URL:

https://rosap.ntl.bts.gov/view/dot/18456/dot_18456_DS1.pdf
File Type:

[PDF-18.14 MB]