Calculation of load increase factors  for assessment of progres

Calculation of load increase factors for assessment of progres

کد آگهی : 5019

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نام Calculation of load increase factors for assessment of progres

ABSTRACT

Progressive collapse of building structures is a relatively rare event. However, the Consequences of progressive collapse may be catastrophic in terms of injuries and loss of lives. In addition, in many parts of the world including the United States of America, Europe, Asia, and recently, United Arab Emirates, there is a trend to build taller and more structurally complicated buildings with adventurous load paths. Therefore, structural design that takes into account the potential for progressive collapse is becoming critical. This paper outlines and discusses the process of estimating the load increase factor (LIF) needed for progressive collapse resistant design of steel building structures that takes into account the effects of component ductility on structural response following the initiation of collapse. LIF are used to account for the dynamic effects of column/wall removal when the designer opts for linear or nonlinear static analysis to assess the potential for progressive collapse. The approach recognizes the difference in response associated with deformation-controlled compared to force-controlled response quantities and structural elements. Emphasis in this paper is on the Alternate Path (AP) approach which is the most commonly used approaches for progressive collapse resistant design of building structure that fall under occupancy Category II.


AUTHOR : Osama Ahmed Mohamed

Case Studies in Structural Engineering 3 (2015) 11–18

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