Monitoring dynamic behavior of bridges: Case study of bridge in Aceh Indonesia.

Traffic load has rapidly risen and this trend continuously grow due to increase demand in freight transports. Heavy vehicles (e.g., articulated trucks) have become prevalent in Indonesia for transporting domestic road freights. Ageing road infastructures (e.g., bridges) subject to increasing demand from heavy traffic load could considerably affect the existing road infrastructures may fail to satisfy specified structural requirements. Further, dynamic effects and excessive deformation induced by heavy traffic load may cause an accelerated rate of bridge structural deterioration and finally resulting in the reduced bridge residual service life. Consequently, many of these bridges are required major improvement, even reconstruction of bridge structures decisions in the future. As such there is a need to monitor bridge structures over time to ensure that they have the sufficient capacity to resist the intended design loads. This paper presents and discusses a real-time structural monitoring of bridge which can be used for assessing bridge structural health by measuring its dynamic response (e.g., frequency) using accelerometer-based sensors. The methodology for transformation of the measured accelerations to relative displacements and natural frequency was also described. The existing condition of a highway bridge located in Aceh Indonesia has been investigated using accelerometer sensor to estimate the bridge dynamic responses. The results of study show that vibration measurement using accelerometer sensor can capture the bridge dynamic responses which contribute to further assessment of possible failures of the structure and ultimately the prediction of service life of bridgesand assessment of bridge structures require an innovative technique which could potentially be used for rapid damage identification and provide reliable information. This paper presents a review on bridge dynamic monitoring using accelerometer and microwave radar interferometry (IBIS-S) for Structural Health Monitoring (SHM) of bridges. In particular, this study reviews the advantages and disadvantages of the measurement used in the recent studies. This review could provide preliminary information for researchers in the selection of the appropriate approaches related to the bridge dynamic monitoring. [ABSTRACT FROM AUTHOR]