부산대학교 도서관

The collapse of Champlain Towers South in Surfside, Florida, was a significant structural building failure in the United States. The investigation into the collapse has identified "punching shear failure" as a contributing factor. This occurs when columns break through weak concrete slabs, leading to the collapse of the building. The use of cost-effective flat-plate construction, commonly found in residential buildings, may have made the structure more vulnerable. Similar collapses in the past have also been attributed to punching shear failure. The investigation by Matthew Fadden and his team determined that the collapse was primarily caused by improper structural design and misplaced steel reinforcement. The pool deck, which was not built to support the specified load and had additional weight added over time, was a focal point of the investigation. The National Institute of Standards and Technology (NIST) also discovered flaws in the slab-column connections within the pool deck, including insufficient steel reinforcement and incorrect placement of reinforcement bars. This tragedy highlights the need for improved protocols for evaluating the safety of aging structures, as well as enhanced maintenance and inspections. [Extracted from the article]