Experimental study of a new type of high-strength monolithic square-section concrete columns with spiral stirrups

• Autorzy: Xianchao Zheng , Liyun Fan , Zhao Jun

Identyfikatory

DOI

10.24425/ace.2023.147662

• Języki publikacji: EN

Abstrakty

EN

In this paper, four full-scale concrete columns with high-strength spiral stirrups (HSSS) are constructed and tested under low-cycle repeated loading. The specimens consisted of two cast-in-place columns and two precast concrete columns encased by a partly square steel pipe and bolt bars. The structural analysis of the HSSS columns of precast concrete conducted here is novel, and past experimental data for this are not available. To assess the seismic behavior and failure mechanisms of the new connections, quasi-static tests were carried out on columns prefabricated with them and cast-in-place specimens. The responses of all columns were compared, and the results showed that the failure modes of all columns are the large eccentric damage, and the destruction of all specimens occur at the column foot. The anti-seismic property of the precast HSSS concrete columns was comparable to that of the HSSS cast-in-place columns. A comparison of such performance parameters as energy dissipation and coefficient of ductility revealed that the precast HSSS concrete columns are suitable for use in earthquake zones.

Słowa kluczowe

EN

square section; concrete column; steel pipe; bolt bar; hysteresis analysis; high strength steel; spiral stirrup; low-cycle load; repeated load

PL

przekrój kwadratowy; kolumna betonowa; rura stalowa; pręt śrubowy; analiza histerezy; stal o wysokiej wytrzymałości; strzemię spiralne; obciążenie niskocyklowe; obciążenie wielokrotne

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 4
• Strony: 319--337
• Opis fizyczny: Bibliogr. 24 poz., il., tab.

Twórcy

autor

Xianchao Zheng

• Department of Civil and Architecture Engineering, Hezhou University, Hezhou, China

• https://orcid.org/0000-0003-3924-2309

autor

Liyun Fan

• Department of Civil and Architecture Engineering, Hezhou University, Hezhou, China

• https://orcid.org/0009-0004-9104-6967

autor

Zhao Jun

• Department of Civil and Architectural Engineering, Anyang Institute of Technology, Anyang, China

• https://orcid.org/0000-0002-1933-9851

Bibliografia

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Uwagi

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