Proof load testing of reinforced concrete slab bridges in the Netherlands

Proof load testing of reinforced concrete slab bridges in the Netherlands

Lantsoght, E.O.L. (TU Delft Steel & Composite Structures)
van der Veen, C. (TU Delft Steel & Composite Structures)
Boer, A. de (Ministry of Infrastructure and the Environment)
Hordijk, D.A. (TU Delft Steel & Composite Structures)

2017

The bridges built during the development of the Dutch road network after the Second World War are reaching their originally devised service life. A large subset of the Dutch bridge stock consists of reinforced concrete slab bridges. This bridge type often rates insufficient according to the recently introduced Eurocodes. Therefore, more suitable methods are developed to assess reinforced concrete slab bridges to help transportation officials make informed decisions about the safety and remaining life of the existing bridges.
If information about a bridge is lacking, if the reduction in structural capacity caused by material degradation is unknown, or if an assessment shows insufficient capacity but additional capacity can be expected, a bridge might be suitable for a field test. A proof load test demonstrates that a given bridge can carry a certain load level. In the Netherlands, a number of existing reinforced concrete slab bridges have been proof loaded, and one bridge has been tested to collapse. Bridges with and without material damage were tested. These bridges were heavily instrumented, in order to closely monitor the behavior of the bridge. Critical positions for bending moment and shear were studied.
Based on the proof load tests that were carried out over the past years, a set of recommendations for the systematic preparation, execution, and analysis of proof load test results is compiled. These recommendations will ultimately form the basis of the guideline for proof load testing for the Netherlands, which is currently under development.

http://resolver.tudelft.nl/uuid:5225b282-14b8-44f7-a721-7bfbfcc1d2ea

Transportation Research Board (TRB)

96th TRB 2017 Annual Meeting: Washington, USA

96th Annual Meeting of the Transportation Research Board, 2017-01-08 → 2017-01-12, Walter E. Washington Convention Center, Washington, United States

Institutional Repository

conference paper

© 2017 E.O.L. Lantsoght, C. van der Veen, A. de Boer, D.A. Hordijk