| Title |
Evaluation of Wireless MEMS Sensor for System Identification of Building Structures |
| Authors |
Kim Hong-Jin ; Kim Boung-Yong ; Kim Wha-Jung |
| Keywords |
MEMS ; System Identification ; Finite Element Model Updating |
| Abstract |
A great interest has been rising on securing safety and the maintenance of structures in the civil engineering and construction fields due to the increase in the number of large structures and social infrastructures as well as collapses of bridges and high rise buildings. MEMS (Micro-Electro-Mechanical System), one of the technologies that are rapidly applied to the evaluation of the integrity of structures, has advantages of being adequate for wireless monitoring owing to the low cost and low electricity consumption, and ease of installation. In this paper, the evaluation of the wireless MEMS system has been conducted using the shaking table and a full scale shear building. The effectiveness of wireless MEMS system has been verified by comparing the results of the evaluations of MEMS accelerometer and traditional accelerometer. To assess the applicability, the wireless MEMS monitoring system is applied to a full-scale building structure with hybrid mass damper(HMD) system. The building is a 5-story steel building and the HMD is mounted on the 4th floor to vibrate the building. The field evaluation results indicate that the wireless MEMS monitoring system is reliable and robust for the health monitoring of buildings. |