Design of load-bearing precast concrete buildings to resist progressive collapse

摘要

Progressive collapse occurs when the localized failure of one component in a building initiates cascading failure of adjacent components, potentially resulting in the collapse of the entire structure or at least a disproportionately large part of the structure. Design to resist progressive collapse, also referred to as disproportionate collapse, requires improved connectivity and continuity between components so that the components in a building that surround a failed supporting component can redistribute loads without failing themselves, though they may sustain heavy damage in doing so.