Seismic behavior of precast concrete coupled shear walls with yielding-based and friction-based coupling beams

• Autorzy: Fang Qiang , Sun Jian , Qiu Hongxing , Dal Lago Bruno , Chen Weihong

Identyfikatory

DOI

10.1007/s43452-023-00647-1

• Języki publikacji: EN

Abstrakty

EN

An innovative bolt-connected precast concrete (PC) shear wall structural system has recently been proposed for middle and high-rise buildings in seismic regions. As a further research step, this paper aims to investigate the seismic behavior of PC coupled shear wall with different types of dissipative coupling beams. The quasi-static cyclic tests on two PC coupled shear wall specimens with friction-based coupling beam (FCB) and yielding-based coupling beam (YCB) were conducted. Moreover, nonlinear finite element models of the specimens were established and validated with the experimental results. The results demonstrated that the proposed dissipative coupling beams can effectively couple the wall panels in elastic field, whilst they can sustain large plastic deformation adding to the structural assembly a relevant source of energy dissipation under thresholded actions. Whilst the specimen with YCB exhibited large overstrength in plastic field, the specimen with FCB provided a more stable plateau capacity associated to enhanced deformation capacity, ductility and energy dissipation. Moreover, the FCB resulted practically undamaged and immediately reusable at the end of the test, whilst the YCB was found highly plasticized and locally torn. In addition, the detailed finite element models of the test specimens accurately predicted the experimental behavior.

Słowa kluczowe

EN

precast concrete coupled wall; dissipative coupling beam; seismic behavior; quasi static cyclic test; numerical simulation

PL

ściana betonowa; badanie sejsmiczne; badanie cykliczne; symulacja numeryczna

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2023
• Tom: Vol. 23, no. 2
• Strony: art. no. e104, 2023
• Opis fizyczny: Bibliogr. 42 poz., rys., tab., wykr.

Twórcy

autor

Fang Qiang

• Space Structures Research Center, Guizhou University, Guiyang 550025, China
• Key Laboratory of Structural Engineering of Guizhou Province, Guizhou University, Guiyang 550025, China

autor

Sun Jian

• Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China

autor

Qiu Hongxing

• Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China

autor

Dal Lago Bruno

• Department of Theoretical and Applied Sciences, Insubria University, 21100 Varese, Italy

autor

Chen Weihong

• College of Civil Engineering, Fuzhou University, Fuzhou 350116, China

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).