Improving the Performance of Low-Level Vibration Measurement of Structures with a Low-Cost Structural Health Monitoring System

Abstract

Monitoring the performance of various structures such as buildings of different sizes, bridges, or observation towers, whether they are old structures that are historically significant or new structures that need to have user confidence in their use. To do this, it is necessary to have measuring equipment installed to always monitor the vibration of the structures. This data can then be analyzed to determine the responses of structures from different types of loading. Currently, the use of vibration monitoring equipment on structures is not widely used due to the high cost of high precision of the equipment. Additionally, there may be limitations in developing lower-cost equipment for monitoring the performance of structures, especially for the low-level of vibration. Therefore, this study aims to improve the performance of low-level vibration monitoring of structures using a low-cost structural health monitoring system and to make it sufficient for practical use on various types of structures in the future. The results from this study found that increasing the number of vibration measuring devices to two sets can improve the efficiency of detecting low-level vibrations. On average, the improvement is approximately about 10-15%.