Disproportionate collapse is a pressing issue in current design practice. Numerous causes are possible – especially forms of extreme loading, such as blast, fire earthquake, or vehicle collisions. But it is the mechanism and its prevention which are of especial interest and concern.
After the World Trade Centre collapse of 2001 interest was sparked, and it is now imperative for a building engineer to have sufficient knowledge on both the analysis and design against disproportionate collapse. Detailed structural design guidance for preventing this has been developed in Europe and US – such as BS5950 in UK, and guidance from the Department of Defense and the General Services Administration in US. However, this is the first systematic textbook in the market to help design engineers or structural engineering students to properly understand this guidance.
As progressive collapse analysis is a distinctive and complicated procedure, it normally requires an ability to use a modern commercial finite element package, and this book features a detailed introduction to the use of FE programs such as ABAQUS in progressive collapse analysis. In addition, case studies are performed using 3D FE models based on various types of structures such as multi-storey buildings, long span space structures, and bridges. These models replicate real collapse incidents and prestigious construction projects, such as progressive collapse analysis of the Twin Towers, structural fire analysis of World Trade Center 7, blast analysis of the Murrah Federal Building and progressive collapse analysis of the Millau Viaduct, which help designers to fully understand the failure mechanisms and effective mitigation methods in practice.
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