Obiekt
Tytuł: Application of buckling restrained braces to upgrade vertical stiffness of existing RC frames
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Tytuł publikacji grupowej:
Abstract:
In this paper, based on the RC frame structure of an industrial building, the finite element model of the structure is developed, according to the Chinese code for seismic design of buildings [9]. Considering the lack of seismic performance, the buckling restrained brace (BRB) is adopted for seismic retrofitting, and various configurations of buckling restrained support are considered for reinforcement. ; The elastic response spectrum analysis (RSA) and direct integration nonlinear time history analyses (NL-TH) are carried out for the frame structure before and after reinforcement using ETABS finite element software. From the joints displacement, inter-story displacement, inter-story shear force, acceleration, energy dissipation, and other aspects of the seismic response of the strengthened structure and the non-strengthened structure, the comparison has been made. ; The effect of buckling restrained support and common support on the existing building structure is verified through analytical modeling. After reinforcement, there is a 40%, 39.3%, 40%, 36.4%, and 38.3% reduction in the first period of vibration after the building is strengthened by inverted BRB, V BRB, two-story BRB, single BRB, and ordinary steel braces, respectively. Strengthening of the structure by buckling restrained braces and ordinary steel braces both decrease the original building displacement by more than 50% from the first to the fourth floor. ; Under severe earthquakes, the use of BRB reduced the column shear by 46.6%; similarly, the incorporation of ordinary steel braces reduced the column shear by 4.72%. It is concluded that using buckling restrained braces will increase the vertical stiffness of the structure to a very high extent.
Opis:
tytuł dodatkowy: Prace z Inżynierii Lądowej i Środowiska
Wydawca:
Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
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DOI:
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Źródło:
Civil and Environmental Engineering Reports (CEER), no 30, vol. 3
Jezyk:
Licencja CC BY-NC-ND 3.0:
Prawa do dysponowania publikacją:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Jednostki organizacyjne > Wydział Budownictwa, Architektury i Inżynierii Środowiska
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Typy utworów > Artykuły
- Zielonogórska Biblioteka Cyfrowa > Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > Civil and Environmental Engineering Reports (CEER) > Civil and Environmental Engineering Reports (CEER) (2020)
Data ostatniej modyfikacji:
2023-03-23
Data dodania obiektu:
2023-03-23
Liczba wyświetleń treści obiektu:
92
Wszystkie dostępne wersje tego obiektu:
https://zbc.uz.zgora.pl/publication/79592
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Wyświetl opis w formacie OAI-PMH:
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| Nazwa wydania | Data |
|---|---|
| Application of buckling restrained braces to upgrade vertical stiffness of existing RC frames | 2023-03-23 |
