Seismic behavior of concrete-filled double-skin steel tube/moment-resisting frames with beam-only-connected precast reinforced concrete shear walls

• Autorzy: Hu, Yi , Zhao, Junhai , Zhang, Dongfang , Chen, Yanxiong
• Języki publikacji: EN

Abstrakty

EN

Concrete-filled double-skin steel tube (CFDST) attracts attention from researchers for it exhibits high strength, good ductility and energy dissipation capacity. In this paper, CFDST frame with beam-only-connected precast reinforced concrete shear wall system is pro-posed, and all the joints used high-strength bolt connection to realize fully-prefabricated construction. Three specimens were tested to obtain the seismic performance and coopera-tive mechanism of such proposed systems, and the contribution of beam-only-connected precast reinforced concrete shear wall (BRW) was quantified by comparing the results of these specimens. The results show that: (1) the BRW cooperated well with the CFDST frames, and it significant enhanced the lateral stiffness and strength of the CFDST frame; (2) all specimens tolerated more than 4% inter-story drift ratio, indicating that the specimens have good lateral deformation capacity; (3) the specimen with two pieces of BRW (BF-BRW-B) exhibited better ductility ratio by comparing with the specimen without BRW (BF) and with only one piece of BRW (BF-BRW-A); (4) relative brittle failure was occurred on the BRW in BF-BRW-A due to the shear force, which resulted in significant strength degradation and ductility reduction of the specimen, but two BRWs in BF-BRW-B could mitigate such situations. Lastly, equations were proposed to predict the lateral resistance of the test specimens.

Słowa kluczowe

PL

struktura kompozytowa; ściana żelbetowa; konstrukcja prefabrykowana

EN

concrete-filled double-skin steel tube; composite structures; RC shear walls; prefabricated structures; seismic behavior

• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 4
• Strony: 967--980
• Opis fizyczny: Bibliogr. 35 poz., fot., rys., tab., wykr.

Twórcy

autor

Hu, Yi

• School of Civil Engineering, Chang'an University, Xi'an 710061, China,

autor

Zhao, Junhai

• School of Civil Engineering, Chang'an University, Xi'an 710061, China,

autor

Zhang, Dongfang

• School of Civil Engineering, Chang'an University, Xi'an 710061, China

autor

Chen, Yanxiong

• School of Civil Engineering, Chang'an University, Xi'an 710061, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)

Identyfikatory

DOI

10.1016/j.acme.2019.04.009