Earthquake protection of reinforced concrete structures with infill walls using PUFJ and FRPU systems

• Autorzy: Kwiecień Arkadiusz , Akyildiz Ahmet Tugrul

Identyfikatory

DOI

10.24425/ace.2023.146076

Warianty tytułu

PL

Ochrona przed trzęsieniami ziemi konstrukcji żelbetowych ze ścianami wypełniającymi przy użyciu systemów PUFJ i FRPU

• Języki publikacji: EN

Abstrakty

EN

Advancements in technology and material sciences lead new solutions to be used in civil engineering. PolyUrethane Flexible Joints (PUFJ) and Fiber Reinforced PolyUrethanes (FRPU) are among those innovative solutions. PUFJ implemented systems comprise of seismic preventive buffer material between masonry infill walls and reinforced concrete (RC) frames, whereas FRPU solution is designed for covering the wall surfaces with thin composite strips. Both methods are primarily developed for increasing the ductility capacities of buildings while sustaining the overall structural strength without compromising on the safety of these systems against earthquakes. In this article, test results of the quasi-static cyclic experiments as well as dynamic tests on the shake tables including harmonic forces operating in resonance are presented. Moreover, numerical analyses are performed in order to comprehend the behavior of PUFJ implemented frames constituted with different masonry materials than above which are under various loading conditions. The outcomes confirmed the high efficiency of the proposed solutions, which at the same time meet the strict requirements of the modern seismic standards.

PL

Postępy w technologii i materiałoznawstwie prowadzą do nowych rozwiązań wprowadzanych w inżynierii lądowej. Wśród tych innowacyjnych rozwiązań znajdują się podatne złącza poliuretanowe (PUFJ) i poliuretany wzmocnione włóknami (FRPU). Systemy PUFJ instalowane są pomiędzy murowanymi ścianami wypełniającymi a ramami żelbetowymi jako anty-sejsmiczny element buforowy, natomiast systemy FRPU są przeznaczone do wzmacniania powierzchni ścian cienkimi pasami kompozytowymi. Obie metody zostały opracowane w celu zwiększenia ciągliwości budynków, przy jednoczesnym utrzymaniu ich ogólnej nośności, a tym samym w celu zwiększenia bezpieczeństwa użytkowania tych budynków w trakcie trzęsień ziemi. W artykule przedstawiono wyniki badań elementów w skali naturalnej pod quasi-statycznymi obciążeniami cyklicznymi oraz obciążeniami dynamicznymi na stole sejsmicznym i pod działaniem sił harmonicznych w rezonansie. Ponadto zostały przeprowadzone analizy numeryczne, mające na celu poznanie zachowania się podobnych konstrukcji z innymi materiałami murowymi współpracującymi z PUFJ, które poddane zostały różnym warunkom obciążenia. Wyniki potwierdziły wysoką skuteczność proponowanych rozwiązań, które jednocześnie spełniają surowe wymagania współczesnych norm sejsmicznych.

Słowa kluczowe

EN

anti-seismic protection; cyclic loading; resonance loading; polymer flexible joint; dynamic test; shake table; PUFJ; fibre reinforced polyurethane; FRPU; reinforced concrete frame; infill wall

PL

ochrona sejsmiczna; obciążenie cykliczne; obciążenie rezonansowe; złącze polimerowe podatne; badanie dynamiczne; stół sejsmiczny; PUFJ; poliuretan wzmocniony włóknami; FRPU; rama żelbetowa; ściana wypełniająca

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 3
• Strony: 199--216
• Opis fizyczny: Bibliogr. 35 poz., il., tab.

Twórcy

autor

Kwiecień Arkadiusz

• Cracow University of Technology, Faculty of Civil Engineering, Cracow, Poland

• https://orcid.org/0000-0002-6169-5585

autor

Akyildiz Ahmet Tugrul

• Cracow University of Technology, Faculty of Civil Engineering, Cracow, Poland

• https://orcid.org/0009-0002-8360-4709

Bibliografia

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