Rehabilitation of a Viaduct Subjected to a Landslide Thrust
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Bibliographic Details
| Author(s): |
Luis Fargier-Gabaldon
Rosendo Camargo-Mora |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 17th IABSE Congress: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, Chicago, USA, 17-19 September 2008 | ||||
| Published in: | IABSE Congress Chicago 2008 | ||||
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| Page(s): | 362-363 | ||||
| Total no. of pages: | 9 | ||||
| Year: | 2008 | ||||
| DOI: | 10.2749/222137908796292993 | ||||
| Abstract: |
The viaduct No. 1 located on the Caracas-La Guaira highway was affected by a landslide thrust detected in 1987. The structure consisted of three parallel double-hinged arch ribs built without longitudinal reinforcement, spanning over 152 m., and two approach viaducts located at either side of the arch rib span. This paper summarizes the rehabilitation measures conducted on the structure to extend its service life, which included the construction of redundant gravity and lateral load resisting systems, external post-tensioning of the arch ribs and the design of a plastic hinge at the crown of the ribs. |
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| Keywords: |
arch bridges plastic hinge retrofitting landslide external post-tensioning Concrete Structures structural rehabilitation
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