Ambient vibration dataset of a short-span cable-stayed bridge

A full-scale short-span cable-stayed bridge on a wind-exposed hill in New South Wales in Australia, was instrumented to assess its dynamic response to ambient vibration. The primary goal was to generate extensive datasets for Operational Modal Analysis (OMA) and develop new Structural Health Monitoring (SHM) techniques. Wind, vehicular, and pedestrian traffic on the bridge, and highway traffic beneath it, provided sufficient ambient vibration excitation. Uni-axial accelerometers were installed on the deck and cables, and a shear strain sensor was placed at one end of the bridge to measure traffic volume. Continuous ambient temperature recording was included due to its known impact on structural modal features. This data note presents four comprehensive datasets: 'A-Single-Day,' 'Seasonal,' 'Constant-Temperature,' and 'Damaged-Structure' which correspond to different environmental, operational, and structural conditions. These datasets are intended to support researchers by providing high-quality, real-world data that can be used for validating and developing OMA frameworks and SHM techniques. This paper fills a critical gap in the literature by making these detailed datasets available for broader research applications. Detailed descriptions of the instrumentation and data collection procedures are provided, along with discussions on the validity and plausibility of the datasets.