- Tytuł:
- Investigation of the Occurrence of Progressive Collapse in High-Rise Steel Buildings with Different Braced Configurations
- Autorzy:
-
Saberi, Hamid
Saberi, Vahid
Sadeghi, Abbasali
Pooyasefat, Abbas
Noroozinejad Farsangi, Ehsan - Powiązania:
- https://bibliotekanauki.pl/articles/2051568.pdf
- Data publikacji:
- 2021
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
high-rise steel buildings
progressive collapse
nonlinear dynamic analysis
Alternative Path Method
APM
concentric bracing
GSA guideline
wysokie budynki stalowe
postępujące zawalenie
łańcuch uszkodzeń konstrukcji
metoda APM - Opis:
- The progressive collapse phenomenon refers to a chain of damages in a structure where all or a large part of the structure is destroyed by an initial local collapse in it, which can lead to very disastrous results. Therefore, the prevention of progressive collapse has become a necessary action in the design and analysis of buildings and it is vital to investigate this topic more accurately. This study aims to present a proposed pattern in the configuration of braces at the height of a high-rise steel building for reducing the probability of progressive collapse. In this regard, the vertical displacement of 18-story structure with four scenarios of column removal and five concentric bracing patterns including V, Inverted V, X, discontinuous X-bracing at height, and a combination of Xbracing in the side spans and discontinuous X-bracing at height in the middle spans are investigated and compared. In this study, the Alternative Path Method (APM) is used based on the GSA guideline for the analysis of progressive collapse. The results of this research showed that the use of X-bracing in the side spans and discontinuous X-bracing in the middle spans in nonlinear static and dynamic analyses performed better in reducing the probability of progressive collapse than other bracing configurations. Finally, it is recommended to use discontinuous X-bracing at the height that would place the bracings in one direction and providing alternative paths for force transferring in the structure.
- Źródło:
-
Civil and Environmental Engineering Reports; 2021, 31, 4; 33-54
2080-5187
2450-8594 - Pojawia się w:
- Civil and Environmental Engineering Reports
- Dostawca treści:
- Biblioteka Nauki
Artykuł