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Title:

Seismic Retrofit of Aerial Stations: Bay Area Rapid Transit, San Francisco, California

Accession Number:

01475327

Record Type:

Component

Availability:

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Washington, DC 20001 USA
Order URL: http://www.trb.org/Main/Blurbs/169693.aspx

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Order URL: http://worldcat.org/isbn/9780309286787

Abstract:

Given the high risk of earthquakes in the San Francisco Bay Area, California, and the essential role of the Bay Area Rapid Transit (BART) system in the region, the BART Earthquake Safety Program has attracted great public attention since the program began. This paper presents a seismic evaluation and describes the retrofit of 11 aerial stations within the BART system. All 11 stations are to be retrofitted to meet safety performance requirements; three of these stations also were retrofitted to meet operability performance requirements. The analytical approaches, seismic vulnerability of as-built stations, and the measures proposed for the BART retrofit effort are presented in detail. It was found that existing bent cap beams and footing caps were insufficient to resist the overstrength demands from columns. Joints between columns and bent caps and joints between columns and footings needed to be strengthened as well. The stations could be upgraded to achieve safety and operability performance requirements through the use of various retrofit measures (e.g., bent cap bolsters, infill walls, fiber-reinforced polymer wraps for columns, footing partial overlays, and footing enlargements).

Monograph Title:

Structures 2013, Volume 2

Monograph Accession #:

01495452

Report Numbers:

13-0566

Language:

English

Authors:

Wang, Huanzi
Ng, Shirley
Abdel-Karim, Ahmad M
Weston, Dan

Pagination:

pp 3–12

Publication Date:

2013

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Issue Number: 2332
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

9780309286787

Media Type:

Print

Features:

Figures (10) ; Maps; References (11) ; Tables (1)

Geographic Terms:

Subject Areas:

Bridges and other structures; Maintenance and Preservation; Public Transportation; Railroads; Terminals and Facilities; I24: Design of Bridges and Retaining Walls

Files:

PRP, TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:14PM

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