Proof load testing of the viaduct De Beek

Conference paper (2017)

Authors

E.O.L. Lantsoght Steel & Composite Structures - CEG
R.T. Koekkoek Steel & Composite Structures - CEG
Y. Yang Steel & Composite Structures - CEG
C. van der Veen Steel & Composite Structures - CEG
A de Boer Ministry of Infrastructure and the Environment
D.A. Hordijk Steel & Composite Structures - CEG
Research Group
Steel & Composite Structures (CEG) (TU Delft)
Copyright: © 2017 E.O.L. Lantsoght, R.T. Koekkoek, Y. Yang, C. van der Veen, A. de Boer, D.A. Hordijk
Sensors Existing bridges Bending moment capacity Slab bridges Load testing Proof load testing Reinforced concrete bridges
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Published Date

2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Engineering Structures

Research Group

Steel & Composite Structures

Abstract

Proof load testing can be a suitable method to show that a bridge can carry the required loads from the code without distress. This paper addresses the preparation, execution, and analysis of a proof load test on a four-span reinforced concrete solid slab bridge, viaduct de Beek. The bridge has one lane in each direction, but was restricted to a single lane, since an assessment showed that the capacity is not sufficient to allow both lanes. For this proof load test, the bridge was heavily equipped with sensors, so that early signs of distress can be seen. The difficulty in this test was that, for safety reasons, only the first span could be tested, but that the lowest ratings were found in the second span. A direct approval of the viaduct by proof loading was thus not possible, and an analysis was necessary after the field test. The result of this analysis is that only by allowing 6.7% of plastic redistribution in the second span, sufficient capacity can be demonstrated.