Instrumentation Results of New Manual for Assessing Safety Hardware Crash Tested Barriers for William P. Lane, Jr. Bridge
Two new bridge barriers were crash tested in accordance with AASHTO Manual for Assessing Safety Hardware (MASH) guidelines for future use on the William P. Lane Bridge over the Chesapeake Bay: (1) a combination barrier consisting of a reinforced concrete parapet with a top steel rail evaluated for Test Level 4 (TL-4); and (2) a combination barrier consisting of a steel parapet with a top steel rail evaluated for test levels TL-4 and TL-5. For the first test configuration, the reinforced concrete barrier was attached to a representative overhang deck slab using anchor rods. In the vicinity of the vehicle impact points, load cells were installed to measure forces in anchor bolts, and strain gauges were attached to reinforcing bars to resolve measured strain data into forces through the overhang deck slab. In the second test configuration, the steel barrier was supported by evenly spaced representative floorbeams using a bolted base plate connection. Strain gauges were attached to elements of the barrier at support locations adjacent to the vehicle impact point to evaluate force transfer through the barrier system into the base plate connections. Linear potentiometers were installed to measure lateral dynamic deflection of the barrier near the vehicle impact region. This paper presents the analysis results of the force, strain, and displacement data measured in the barrier and deck structural components during crash load testing.
- Record URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- © National Academy of Sciences: Transportation Research Board 2021.
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Authors:
- Hopper, Travis
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0000-0003-4786-2436
- Lopez, Maria
- Eshenaur, Scott
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0000-0002-8707-5413
- Publication Date: 2021
Language
- English
Media Info
- Media Type: Web
- Features: References;
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Publisher: Sage Publications, Incorporated
- ISSN: 0361-1981
- EISSN: 2169-4052
- Serial URL: http://journals.sagepub.com/home/trr
Subject/Index Terms
- TRT Terms: Anchor bolts; Bridge railings; Crash tests; Parapets; Reinforced concrete; Steel
- Identifier Terms: AASHTO Manual for Assessing Safety Hardware; William Preston Lane Jr. Memorial Bridge
- Geographic Terms: Chesapeake Bay
- Subject Areas: Bridges and other structures; Design; Highways;
Filing Info
- Accession Number: 01788054
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Nov 15 2021 6:00PM