This paper presents a series of laboratory experiments on a scaled reinforced concrete bridge deck as well as results of a pilot project on an existing bridge. The ultimate goal is to develop a structural health monitoring system based on evaluation of the dynamic bending stiffness which would be derived from easy to use measurement devices. The experiments are aimed at measuring the deflection for static load, and the dynamic response due to a moving mass, representing a traffic load. The two types of applied sensors are accelerometers and linear variable differential transducer (LVDT). Lab results include dynamic response from uncracked, partial cracked and fully cracked conditions, which influenced the dynamic stiffness. Changes of stiffness therefor is to be believed to be a parameter for crack conditions. The concept has been applied to an existing bridge to prove its value.
|Title of host publication||Life-Cycle of Engineering Systems|
|Subtitle of host publication||Emphasis on Sustainable Civil Infrastructure|
|Editors||J. Bakker, D.M. Frangopol, K. van Breugel|
|Place of Publication||Delft|
|Number of pages||10|
|Publication status||Published - 16 Oct 2016|
|Event||5th International Symposium on Life-Cycle Engineering 2016: Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure - Delft, Netherlands|
Duration: 16 Oct 2016 → 19 Oct 2016
Conference number: 5
|Conference||5th International Symposium on Life-Cycle Engineering 2016|
|Abbreviated title||IALCCE 2016|
|Period||16/10/16 → 19/10/16|
Mostafa, N., Loendersloot, R., Tinga, T., Reitsema, A. D., & Hordijk, D. A. (2016). Monitoring dynamic stiffness that predicts concrete structure degradation. In J. Bakker, D. M. Frangopol, & K. van Breugel (Eds.), Life-Cycle of Engineering Systems: Emphasis on Sustainable Civil Infrastructure Delft: IALCCE.