Reinforcing concrete box girder bridges with external post-tensioning and steel
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Bibliographic Details
| Author(s): |
Jaap van Lier
Marco Pronk |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Conference: Assessment, Upgrading and Refurbishment of Infrastructures, Rotterdam, The Netherlands, 6-8 May 2013 | ||||
| Published in: | IABSE Conference, Rotterdam, May 2013 | ||||
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| Page(s): | 240-241 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813806735606 | ||||
| Abstract: |
The webs of the box girders of the Lower Rhine Bridge at Heteren (The Netherlands) have insufficient shear resistance. The bridge needed to be reinforced by introducing a vertical, upward force into the bridge a short distance from the bearing. An unique structure was designed for this purpose, using external post-tensioning applied to the bridge at an angle of approximately 32 degrees. A steel structure was attached under the bridge which bears the vertical and horizontal forces that are released. The reactive forces in the bridge are redirected to the abutments by means of a steel deviator. The reinforcement was successfully implemented as described and was completed in 2010. |
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| Keywords: |
steel concrete box girder bridge bearing post-tensioning strand transverse reinforcement
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