Improved Geometric Design of Bridge Asphalt Plug Joints
Asphalt plug joints (APJs) have several advantages over traditional bridge joints. They are easy and cheap to install and have good surface flatness. However, widespread application of APJs in bridges has been hindered by frequently observed premature failures. Detailed finite-element simulations are conducted to develop a better understanding of the parameters that influence APJ response under traffic and thermal loading conditions. The computational model employs a time and temperature dependent viscoplastic material model and is validated by comparing model results to previously published experimental data. The key parameters investigated are gap plate width, gap plate thickness, gap plate edge geometry, and geometry of the interface between pavement and APJ. The resulting information is synthesized into a proposed alternative APJ design that minimizes local demands deemed to be responsible for the observed early failures.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
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Authors:
- Park, Philip
- El-Tawil, Sherif
- Park, Sang-Yeol
- Publication Date: 2011-1
Language
- English
Media Info
- Media Type: Print
- Features: Bibliography; Figures; Tables;
- Pagination: pp 158-165
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Serial:
- Journal of Bridge Engineering
- Volume: 16
- Issue Number: 01
- Publisher: American Society of Civil Engineers
- ISSN: 1084-0702
- Serial URL: http://ojps.aip.org/beo
Subject/Index Terms
- TRT Terms: Bridges; Finite element method; Geometric design; Loads; Structural plates
- Uncontrolled Terms: Asphalt plug joints; Computational models; Premature failure
- Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01328106
- Record Type: Publication
- Files: TRIS
- Created Date: Jan 21 2011 1:03PM