Monitoring and Inspection of a Fiber Reinforced Polymer (FRP) Road Bridge
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Bibliographic Details
| Author(s): |
Markus Gabler
(Arup, Dusseldorf, Germany; formerly: Institute for Building Structures and Structural Design (ITKE), U. o. Stuttgart, Germany)
Eberhard Pelke (Hessen Mobil, Wiesbaden, Germany) Jan Knippers (Institute for Building Structures and Structural Design (ITKE), University of Stuttgart, Germany) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 1296-1303 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.1291 | ||||
| Abstract: |
The Friedberg Bridge in Germany was the first FRP - steel composite road bridge in Europe when it was opened to traffic in 2008. The bridge has a span of 27 m and a total width of 5 m. It had been designed for full vehicle live load as per EN 1991 with the then applicable NA for Germany. An extensive senor network had been installed to investigate the structural behavior of the bridge when subjected to daily temperature cycles and live loads. The bridge has also been visually inspected over the first years of use. This contribution will present the sensor readings during load tests and daily temperature cycles. The results allow for assessment of the load bearing behavior of the FRP deck and adhesive interface of the deck to the steel girders as well as long-term effects. This can be used for calibration of a detailed FEA model of the bridge, which can be used for future design tasks of FRP bridges. For example, the analysis shows that the contribution of the surfacing layer as well as the parapets is non-negligible for proper modeling of the structural behavior. The load testing was supplemented by visual inspections, which didn’t showed any visible damage to the adhesive layer nor the FRP deck. |
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| Keywords: |
adhesive FRP GFRP maintenance sensors monitoring SHM
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