Strengthening the 100‐year‐old reinforced concrete dome of the Centennial Hall in Wrocław

A century after its construction, the reinforced concrete dome of Centennial Hall in Wrocław—once the world's largest—was successfully strengthened using external prestressing techniques. This innovative approach addressed structural weaknesses in the 65-meter-diameter dome, ensuring its longevity while preserving its modernist architectural significance. The study involved a detailed assessment of the hall's condition, numerical simulations to model stress distribution, and the implementation of prestressing cables along the lower tension ring. Recognized as a UNESCO World Heritage Site for its pioneering engineering, Centennial Hall's renovation serves as a case study in sustainable heritage conservation, balancing structural integrity with historical preservation.

Onysyk, J., Biliszczuk, J., Prabucki, P., Sadowski, K., & Toczkiewicz, R. (2014). Strengthening the 100‐year‐old reinforced concrete dome of the Centennial Hall in Wrocław. Structural Concrete, 15(1), 30–37. Portico. https://doi.org/10.1002/suco.201300007