Structural health monitoring is a multi-disciplinary branch of engineering that has the potential to improve decision making through the use of measurements. Recent developments in sensing technology and data-acquisition systems enable engineers to deploy dense sensor arrays for infrastructure monitoring at an affordable cost. The monitoring of infrastructure has become more and more common and the number of infrastructure that are continuously monitored is increasing. The bottleneck is data interpretation and this task is even more challenging in the presence of environmental effects such as variations in humidity, wind and temperature. My research activities aim to address this challenge. It involves structural identification, damage detection and measurement system design