Earthquakes and Structures

  • 제17권4호
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  • Pages.399-409
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  • 2019
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Pseudo-dynamic and cyclic loading tests on a steel-concrete vertical hybrid structure

  • Wang, Bo (School of Civil Engineering, Chang'an University) ;
  • Wu, Tao (School of Civil Engineering, Chang'an University) ;
  • Dai, Huijuan (School of Civil Engineering, Xi'an University of Science and Technology) ;
  • Bai, Guoliang (School of Civil Engineering, Xi'an University of Architecture and Technology) ;
  • Wu, Jian (Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University)
  • 투고 : 2019.04.21
  • 심사 : 2019.08.28
  • 발행 : 2019.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the experimental investigations on the seismic performance of a peculiar steel-concrete vertical hybrid structural system referred to as steel truss-RC tubular column hybrid structure. It is typically applied as the supporting structural system to house air-cooled condensers in thermal power plants (TPPs). Firstly, pseudo-dynamic tests (PDTs) are performed on a scaled substructure to investigate the seismic performance of this hybrid structure under different hazard levels. The deformation performance, deterioration behavior and energy dissipation characteristics are analyzed. Then, a cyclic loading test is conducted after the final loading case of PDTs to verify the ultimate seismic resistant capacity of this hybrid structure. Finally, the failure mechanism is discussed through mechanical analysis based on the test results. The research results indicate that the steel truss-RC tubular column hybrid structure is an anti-seismic structural system with single-fortification line. RC tubular columns are the main energy dissipated components. The truss-to-column connections are the structural weak parts. In general, it has good ductile performance to satisfy the seismic design requirements in high-intensity earthquake regions.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Natural Science Foundation of Shaanxi Province, China Postdoctoral Science Foundation

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피인용 문헌

  1. Cyclic loading test of abnormal joints in SRC frame-bent main building structure vol.20, pp.4, 2019, https://doi.org/10.12989/eas.2021.20.4.417