Full-Scale Crash Test and Design Guidelines for Traffic Barriers on Top of MSE Walls
Millions of square meters of mechanically stabilized earth (MSE) retaining walls are constructed annually in the United States. When used in highway fill applications, these MSE walls are typically constructed with a roadside barrier system supported on the edge of the wall. This barrier system generally consists of an L shape concrete structure so that if a vehicle hits the vertical part of the L shape (barrier), the horizontal part of the L (moment slab) provides the resisting moment during the impact. This paper addresses the proper design of the barrier system against sliding and overturning, and of the MSE wall system against pull out and rupture of the reinforcement as well as flexural and shear failure of the wall panels. These design guidelines are developed in terms of AASHTO LRFD procedures. In order to verify the new guidelines, a full-scale pick-up truck crash test was conducted. The MSE wall reinforcement was instrumented and the measured data is presented.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Kim, Kang Mi
- Briaud, Jean-Louis
- Bligh, Roger P
- Abu-Odeh, Akram
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Conference:
- Transportation Research Board 89th Annual Meeting
- Location: Washington DC, United States
- Date: 2010-1-10 to 2010-1-14
- Date: 2010
Language
- English
Media Info
- Media Type: DVD
- Features: Figures; Photos; References; Tables;
- Pagination: 27p
- Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Bridge design; Crash tests; Design; Flexural strength; Mechanically stabilized earth; Retaining walls
- Identifier Terms: AASHTO LRFD Bridge Design Specifications
- Uncontrolled Terms: Attachments (Traffic barriers)
- Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01152282
- Record Type: Publication
- Report/Paper Numbers: 10-2231
- Files: TRIS, TRB
- Created Date: Mar 16 2010 6:12AM