Investigating the effects of structural pounding on the seismic performance of adjacent RC and steel MRFs - Publikacja - MOST Wiedzy

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Investigating the effects of structural pounding on the seismic performance of adjacent RC and steel MRFs

Abstrakt

An insufficient separation distance between adjacent buildings is the main reason for structural pounding during severe earthquakes. The lateral load resistance system, fundamental natural period, mass, and stiffness are important factors having the influence on collisions between two adjacent structures. In this study, 3-, 5- and 9-story adjacent reinforced concrete and steel Moment Resisting Frames (MRFs) were considered to investigate the collision effects and to determine modification factors for new and already existing buildings. For this purpose, incremental dynamic analysis was used to assess the seismic limit state capacity of the structures using a developed algorithm in OpenSees software including two near-field record subsets suggested by FEMA-P695. The results of this paper can help engineers to approximately estimate the performance levels of MRFs due to pounding phenomenon. The results confirm that collisions can lead to the changes in performance levels, which are difficult to be considered during the design process. In addition, the results of the analyses illustrate that providing a fluid viscous damper between adjacent reinforced concrete and steel structures can be effective to eliminate the sudden changes in the lateral force during collision. This approach can be successfully used for retrofitting adjacent structures with insufficient in-between separation distances.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Bulletin of Earthquake Engineering nr 19, strony 317 - 343,
ISSN: 1570-761X
Język:
angielski
Rok wydania:
2021
Opis bibliograficzny:
Kazemi F., Miari M., Jankowski R.: Investigating the effects of structural pounding on the seismic performance of adjacent RC and steel MRFs// Bulletin of Earthquake Engineering -Vol. 19, (2021), s.317-343
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s10518-020-00985-y
Weryfikacja:
Politechnika Gdańska

wyświetlono 46 razy

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