Investigation of progressive collapse in intermediate RC frame structures

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Investigation of progressive collapse in intermediate RC frame structures

Author: Alireza Pachenari, Abolghassem Keramati and Zahra Pachenari | Size: 370 KB | Format: PDF | Quality: Unspecified | Publisher: Wiley | Year: 2010 | pages: 10

A large part of common reinforced concrete (RC) structures are designed as intermediate moment resisting
frames. However, current progressive collapse studies have not paid much attention to these frames. In this
study, based on the acceptance criteria of the UFC 4-023-03 document, the infl uence of some external and
corner column removal cases are evaluated by nonlinear procedures in all storeys of a regular structure.
Although this structure considers the acceptance criteria of nonlinear dynamic analyses, nonlinear static
analyses require additional reinforcement in beam supports in the top two storeys. Compared to dynamic
analyses, it is also concluded that static analyses are more conservative in the estimation of maximum
vertical displacement and shear force in beams.

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