Seismic energy dissipation performance of anti-buckling bracing and component composition parameters analysis

• Autorzy: Zhang Wei , Lv Lei , Li Xincheng , Ouyang Xinhong , Fu Zhongqiu

Identyfikatory

DOI

10.24425/ace.2025.153351

• Języki publikacji: EN

Abstrakty

EN

Through the finite element method, the finite element models of three kinds of buckling-restrained brace components: cross-shaped square steel tube support, cross-shaped circular steel tube support, and circular steel tube support are established. The hysteretic performance of buckling-restrained braces under cyclic loading is analyzed, and the influence of component parameters on the mechanical performance of three kinds of buckling-restrained braces is further analyzed. The results show that the three types of buckling restrained braces have good hysteretic energy dissipation performance, and the cross-shaped square steel tube brace has the best hysteretic energy dissipation performance. The influence of the restraint stiffness ratio of the buckling-restrained brace on the mechanical properties of the three types of buckling-restrained braces is consistent.With the increase of the restraint ratio, the buckling-restrained brace reaches full-section yield. The increase of the width-thickness ratio of the inner core element will cause the yield lag of the buckling-restrained brace, while the lower width-thickness ratio of the inner core element will cause excessive stress concentration. Therefore, it is suggested that the width-thickness ratio of the inner core element should be between 5 and 10. The initial imperfection and connection stiffness of buckling-restrained braces have little effect on the bearing capacity of buckling-restrained braces.

Słowa kluczowe

EN

buckling restrained brace; component parameter; hysteresis curve; hysteresis performance; performance analysis; seismic energy dissipation

PL

usztywnienie; zabezpieczenie przed wyboczeniem; parametr komponentu; krzywa histerezy; wydajność histerezy; analiza wydajności; rozpraszanie energii sejsmicznej

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2025
• Tom: Vol. 71, nr 1
• Strony: 577--594
• Opis fizyczny: Bibliogr. 26 poz., il., tab.

Twórcy

autor

Zhang Wei

• Department of Architecture and Civil Engineering, Zhejiang Tongji Vocational College of Science and Technology, Hangzhou, P.R. China

• https://orcid.org/0009-0000-3334-1184

autor

Lv Lei

• Department of Architecture and Civil Engineering, Zhejiang Tongji Vocational College of Science and Technology, Hangzhou, P.R. China

• https://orcid.org/0009-0007-7735-2476

autor

Li Xincheng

• College of Civil and Transportation Engineering, Hohai University, Nanjing, P.R. China

• https://orcid.org/0009-0008-1171-6019

autor

Ouyang Xinhong

• JSTI GROUP, Nanjing, P.R. China

• https://orcid.org/0009-0005-8678-7522

autor

Fu Zhongqiu

• College of Civil and Transportation Engineering, Hohai University, Nanjing, P.R. China

• https://orcid.org/0009-0001-0703-1155

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