Structural reliability of RC frames under sudden column removal scenarios considering static and dynamic methods
|
|
|||||||||||
Bibliographic Details
| Author(s): |
Luchuan Ding
(PhD student, Department of Structural Engineering and Building Materials, Ghent University, Ghent, Belgium)
Ruben Van Coile (Professor, Department of Structural Engineering and Building Materials, Ghent University, Ghent, Belgium) Wouter Botte 
(Postdoc, Department of Structural Engineering and Building Materials, Ghent University, Ghent, Belgium)
Robby Caspeele
(Professor, Department of Structural Engineering and Building Materials, Ghent University, Ghent, Belgium)
|
||||
|---|---|---|---|---|---|
| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
|
|||||
| Page(s): | 1789-1796 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.1789 | ||||
| Abstract: |
The alternative load path (ALP) method is widely used to investigate the performance of reinforced concrete (RC) buildings in case of progressive collapse (or disproportional collapse) scenarios. This kind of analysis can be carried out either in a static way or in a dynamic way. In this contribution, these methods are compared by means of nonlinear static and nonlinear dynamic analysis methods. A 5-storey RC frame subjected to two different sudden column removal scenarios is adopted as a case study. The probabilistic analysis considers 12 random variables. On the basis of the stochastic results, a dynamic amplification factor (DAF) is calculated. The mean values of the DAF are 1.114 and 1.102 for the external column removal scenario (Case A) and the internal column removal scenario (Case B), respectively. Compared to the failure probabilities obtained through a static analysis, the failure probabilities for the incremental dynamic analysis results are 184.0% and 180.7% higher for Case A and Case B, respectively. |
||||
| Keywords: |
structural reliability dynamic analysis dynamic amplification factor RC frame incremental dynamic analysis pushdown analysis sudden column removal scenario
|
||||
| Copyright: | © 2021 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
||||