A preliminary analysis and discussion of the condominium building collapse in surfside, Florida, US, June 24, 2021
Xinzheng LU1(), Hong GUAN2, Hailin SUN3, Yi LI4, Zhe ZHENG1, Yifan FEI1, Zhi YANG2,4, Lingxiao ZUO3
1. Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Tsinghua University, Beijing 100084, China 2. School of Engineering and Built Environment, Griffith University Gold Coast Campus, Queensland 4222, Australia 3. China Architecture Design & Research Group Co., Ltd, Beijing 100044, China 4. Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China
On June 24, 2021, a 40-year-old reinforced concrete flat plate structure building in Miami suffered a sudden partial collapse. This study analyzed the overall performance and key components of the collapsed building based on the building design codes (ACI-318 and GB 50010). Punching shear and post-punching performances of typical slab-column joints are also studied through the refined finite element analysis. The collapse process was simulated and visualized using a physics engine. By way of these analyses, weak design points of the collapsed building are highlighted. The differences between the reinforcement detailing of the collapsed building and the requirements of the current Chinese code are discussed, together with a comparison of the punching shear and post-punching performances. The simulated collapse procedure and debris distribution are compared with the actual collapse scenes.
. [J]. Frontiers of Structural and Civil Engineering, 2021, 15(5): 1097-1110.
Xinzheng LU, Hong GUAN, Hailin SUN, Yi LI, Zhe ZHENG, Yifan FEI, Zhi YANG, Lingxiao ZUO. A preliminary analysis and discussion of the condominium building collapse in surfside, Florida, US, June 24, 2021. Front. Struct. Civ. Eng., 2021, 15(5): 1097-1110.
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