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논문 기본 정보

자료유형
학술저널
저자정보
de Souza Bastos, Leonardo (Civil Engineering Postgraduate Programme [PGECIV], Faculty of Engineering [FEN], State University of Rio de Janeiro [UERJ]) Guerrero, Carolina Andrea Sanchez (Civil Engineering Postgraduate Programme [PGECIV], Faculty of Engineering [FEN], State University of Rio de Janeiro [UERJ]) Barile, Alan (Civil Engineering Postgraduate Programme [PGECIV], Faculty of Engineering [FEN], State University of Rio de Janeiro [UERJ]) da Silva, Jose Guilherme Santos (Civil Engineering Postgraduate Programme [PGECIV], Faculty of Engineering [FEN], State University of Rio de Janeiro [UERJ])
저널정보
테크노프레스 Coupled systems mechanics Coupled systems mechanics 제8권 제2호
발행연도
2019.1
수록면
169 - 184 (16page)

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This research work presents a study that aims to assess the dynamic structural behaviour and also investigate the human comfort levels of a reinforced concrete building, when subjected to nondeterministic wind dynamic loadings, considering the effect of masonry infills on the global stiffness of the structural model. In general, the masonry fills most of the empty areas within the structural frames of the buildings. Although these masonry infills present structural stiffness, the common practice of engineers is to adopt them as static loads, disregarding the effect of the masonry infills on the global stiffness of the structural system. This way, in this study a numerical model based on sixteen-storey reinforced concrete building with 48 m high and dimensions of $14.20m{\times}15m$ was analysed. This way, static, modal and dynamic analyses were carried out in order to simulate the structural model based on two different strategies: no masonry infills and masonry infills simulated by shell finite elements. In this investigation, the wind action is considered as a nondeterministic process with unstable properties and also random characteristics. The fluctuating parcel of the wind is decomposed into a finite number of harmonic functions proportional to the structure resonant frequency with phase angles randomly determined. The nondeterministic dynamic analysis clearly demonstrates the relevance of a more realistic numerical modelling of the masonry infills, due to the modifications on the global structural stiffness of the building. The maximum displacements and peak accelerations values were reduced when the effect of the masonry infills (structural stiffness) were considered in the dynamic analysis. Finally, it can be concluded that the human comfort evaluation of the sixteen-storey reinforced concrete building can be altered in a favourable way to design.

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