Zhuhai Banzhang Mountain Footbridge and Observation Tower
The Banzhang Mountain Footbridge spans 625m in length, connecting the eastern and western mountains of the Banzhang Mountain Trail. It features a spectacular 25m tall spiral walkway and a 230m bridge crossing over an existing highway. The unique design of the footbridge and spiral walkway reflects a dynamic architectural and aesthetic statement, and an engineering masterpiece.
There is art in the way the footbridge’s curvy geometry balances form and function. We implemented a conventional steel girder for steady performance, with steel composite and reinforced concrete to address the footbridge’s complex shape and workload. The spiral walkway tower structure combines a steel exoskeleton and internal reinforced concrete lift core to follow the deck geometry and achieve overall lateral stability.
"Our multi-disciplinary consultant team adopted cutting-edge systems and technologies to accommodate the complex geometry of this structure. We strived to enhance the project’s overall stability, efficiency and appearance, while also reducing construction waste. Given the long-span and lightweight design of the structure, we also used a Fourier Series function to model pedestrian comfort levels." Dong Chen, Director.
The Banzhang Mountain Footbridge is a unique structure featuring spiral geometries designed to satisfy multiple requirements while complying with local and international guidelines.