Kangaroo Point Green Bridge

Dynamic structural analysis with high-frequency accelerometer data, confirming comfort and safety for Brisbane’s new pedestrian and cyclist river crossing.

The Kangaroo Point Green Bridge Project

The Kangaroo Point Green Bridge is a significant pedestrian and cyclist bridge in Brisbane, linking the city’s CBD to Kangaroo Point across the Brisbane River. Featuring a cable-stayed design with an asymmetrical span and single mast, this iconic bridge emphasizes green mobility and enhances connectivity. Its unique architecture supports future community activities, aiming to become a modern urban focal point for residents and visitors.

The Challenges

The primary challenge for this project was to ensure comfort and safety for bridge users under various load conditions. Sixense was tasked with performing a complex modal analysis to assess the dynamic response of the bridge deck and cables. The lightweight design of the bridge required precise testing methods to capture accurate data and ensure that the bridge would meet performance standards.

What We’ve Delivered

Sixense delivered a robust dynamic analysis solution for the Kangaroo Point Green Bridge, which included the temporary installation of accelerometers at critical points on the deck and cables. These sensors allowed for comprehensive vibration measurements, capturing dynamic responses under various loading scenarios, including pedestrian movement and ambient vibrations. The data gathered enabled Sixense to conduct in-depth dynamic analyses, assessing modal parameters and damping characteristics to verify that the bridge met comfort and safety standards.
Through a series of dynamic tests, Sixense confirmed that the bridge is safe and comfortable for pedestrians and cyclists, contributing to Brisbane City Council’s mission to build a more sustainable, accessible city. The Kangaroo Point Green Bridge now serves as an essential, eco-friendly link within Brisbane’s infrastructure.