Monitoring structural responses during load testing of reinforced concrete bridges: a review
Open Access
- 18 April 2022
- journal article
- review article
- Published by Taylor & Francis Ltd in Structure and Infrastructure Engineering
- Vol. 18 (10-11), 1558-1580
- https://doi.org/10.1080/15732479.2022.2063906
Abstract
Nowadays, with the aging of the bridges and the advancements in technology, load testing has emerged as an effective method to assess existing concrete bridges with missing information, or where analytical methods do not provide an accurate assessment. Two types of load tests are identified: diagnostic load tests and proof load tests. Both rely on field measurements of parameters or structural responses of the bridge during the test. A diagnostic load test measures the response of the bridge so that analytical models can be calibrated and evaluated. In a proof load test, the bridge directly demonstrates that it can carry a certain load. Since large loads are applied, the bridge needs to be carefully monitored. In this case, monitoring the measurements provide a warning to avoid damage. This paper reviews the literature on reported load tests and the measurement techniques used during these tests. It also includes a review of traditional and recently developed sensing technologies. Finally, the measurement requirements for diagnostic and proof load tests are given as well as a flow chart to guide engineers in the selection process of appropriate monitoring and measurement techniques during load tests. This paper can serve engineers during the preparation of a load test.Keywords
This publication has 71 references indexed in Scilit:
- Optical imaging for low-cost structural measurementsProceedings of the Institution of Civil Engineers - Bridge Engineering, 2014
- Monitoring of Structures and Mechanical Systems Using Virtual Visual Sensors for Video Analysis: Fundamental Concept and Proof of FeasibilitySensors, 2013
- Monitoring of Civil Infrastructures by Interferometric Radar: A ReviewThe Scientific World Journal, 2013
- Photographic strain monitoring during full-scale failure testing of Örnsköldsvik bridgeStructural Health Monitoring, 2012
- Two-dimensional digital image correlation for in-plane displacement and strain measurement: a reviewMeasurement Science and Technology, 2009
- Interferometric radar vs. accelerometer for dynamic monitoring of large structures: An experimental comparisonNDT & E International, 2008
- Smart aggregates: multi-functional sensors for concrete structures—a tutorial and a reviewSmart Materials and Structures, 2008
- Acoustic emission for monitoring a reinforced concrete beam subject to four-point-bendingConstruction and Building Materials, 2007
- Digital image correlation analysis of crack behavior in a reinforced concrete beam during a load testCanadian Journal of Civil Engineering, 2006
- Load Distribution and Shear Strength Evaluation of an Old Concrete T-Beam BridgeTransportation Research Record: Journal of the Transportation Research Board, 2000