Earthquakes and Structures

  • 제24권6호
  • /
  • Pages.393-404
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  • 2023
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Two scale seismic analysis of masonry infill concrete frames through hybrid simulation

  • Cesar Paniagua Lovera (Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria) ;
  • Gustavo Ayala Milian (Instituto de Ingenieria, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria)
  • 투고 : 2023.01.08
  • 심사 : 2023.04.23
  • 발행 : 2023.06.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the application of hybrid-simulation-based adapter elements for the non-linear two-scale analysis of reinforced concrete frames with masonry infills under seismic-like demands. The approach provides communication and distribution of the computations carried out by two or more remote or locally distributed numerical models connected through the OpenFresco Framework. The modeling consists of a global analysis formed by macro-elements to represent frames and walls, and to reduce global degrees of freedom, portions of the structure that require advanced analysis are substituted by experimental elements and dimensional couplings acting as interfaces with their respective sub-assemblies. The local sub-assemblies are modeled by solid finite elements where the non-linear behavior of concrete matrix and masonry infill adopt a continuum damage representation and the reinforcement steel a discrete one, the conditions at interfaces between concrete and masonry are considered through a contact model. The methodology is illustrated through the analysis of a frame-wall system subjected to lateral loads comparing the results of using macro-elements, finite element model and experimental observations. Finally, to further assess and validate the methodology proposed, the paper presents the pushover analysis of two more complex structures applying both modeling scales to obtain their corresponding capacity curves.

키워드

과제정보

This research was supported by the General Directorate for Affairs of Academic Personnel (DGAPA) of the National Autonomous University of Mexico (UNAM), through the PAPIIT project number IN106917. This research was also possible thanks to the graduate scholarship of the first author by National Council for Science and Technology (CONACyT) and to the meaningful contributions of Dr. Jaime Retama, member of the same research group.

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