Axial compressive experiments and structural behaviour estimation of CFS composite walls sprayed with LPM

Wang, Wanqian; Wang, Jingfeng; Zhao, Peng; Ja, Lili; Pan, Guangdong

doi:10.1016/j.jobe.2020.101305

Cited by 12 publications

(13 citation statements)

References 23 publications

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“…Fig. 8 Axial compressive load-displacement curves [6]. Six specimens were tested to explore the out-of-plane flexural behaviour of LEM-infilled CFS walls.…”

Section: Test Resultsmentioning

confidence: 99%

“…In an attempt to study the axial compressive behaviours of LEM-infilled CFS walls, five specimens had been designed and tested [6], with the uniform geometrical size of 1.2 m width and 2.7 m height. The specimens' detail information is illustrated in Figs.…”

Section: Test Specimenmentioning

confidence: 99%

“…In order to make up for the shortcomings of the traditional CFS structure and meet the requirements of sustainable development at the same time, a new type of lightweight mortars infilled CFS structure is proposed [1][2][3]. The research group of Prof. Wang in the Hefei University of Technology introduced a lightweight mortar, using desulfurization gypsum and expanded polystyrene (EPS) as main ingredients, into CFS walls [4][5][6]. The lightweight mortar wall was called LEM in brief.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Wang¹,

Wang²,

Guo³

2022

Sustain. Struct.

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The sustainable development of the engineering structures mainly depends on the environmental- friendly to structural components. This requires the development of sustainable and new materials and structures that would be a worthy alternative for the available. This paper proposed a novel type of cold-formed steel (CFS) shear wall which filling light EPS mortars (LEM) into the space of CFS framing. LEM-infilled CFS walls carry forward the merits of traditional CFS wall, for example lightweight, easy installation, superior earthquake resistance and efficient energy saving. Moreover, employing recycled desulfurization gypsum and EPS in the structural materials reduce environmental pollution. However, the behavior of LEM-infilled CFS wall is not fully explored yet, which results in the low understanding and application of the material around the world. Based on this background, a review of mechanical response tests will contribute to a better awareness. In this paper, three types of mechanical behaviours are discussed including axial compressive behaviour, out-of-plane flexural behaviour, and cyclic behaviour. The previous researches on the mechanical performance of LEM-infilled CFS walls were reviewed. And the typical failure patterns and general results were described and discussed. This work will provide an excellent reference to current practice and future exploration.

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“…Fig. 8 Axial compressive load-displacement curves [6]. Six specimens were tested to explore the out-of-plane flexural behaviour of LEM-infilled CFS walls.…”

Section: Test Resultsmentioning

confidence: 99%

Section: Test Specimenmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Wang¹,

Wang²,

Guo³

2022

Sustain. Struct.

Self Cite

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“…Thus, the development and investigation of CFS composite walls filled with lightweight materials have been a hot topic. Many studies [4,[10][11][12] investigating the structural performance of CFS composite walls filled with different lightweight materials indicated that the lightweight fillers could not only restrain the local buckling of the CFS frame effectively, but also improve the axial compressive capacity, cyclic performance and ductility.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation and Numerical Analyses on Cyclic Behavior of the Prefabricated Concrete Frame Infilled with CFS-CLPM Composite Walls

Liu

Wang

et al. 2022

Buildings

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A novel CFS composite wall filled with cement-based lightweight polymer material (CFS-CLPM composite wall) has been proposed and proven to have excellent architectural and mechanical performance. To promote its application in prefabricated concrete (PC) frame structures, two full-scale specimens were designed and tested under cyclic loading to investigate the failure mode, hysteretic response and energy dissipation of the PC frame infilled with the CFS-CLPM composite wall. The experimental results indicated that CFS-CLPM composite walls can significantly improve the lateral behavior of the PC frame in terms of load capacity, elastic stiffness and energy dissipation capacity, while slightly reducing its ductility because of the infill-frame interaction. Subsequently, finite element (FE) analyses for the PC frame infilled with CFS-CLPM composite walls were developed and verified against the experimental results. The force-transferring mechanisms between the PC frame and the CFS-CLPM composite walls were revealed by analyzing the stress distributions. The parametric analyses demonstrated that the influential parameters for lateral resistances of the PC frame structure infilled with CFS-CLPM composite walls were the strength of CLPM, the span-to-height ratio and the thickness of CFS-CLPM composite walls. Finally, a formula considering the mechanical contribution of the CFS-CLPM composite wall was proposed to predict the elastic lateral stiffness of the structures. The results of this study could provide a basis for the application of CFS-CLPM composite walls in PC frame structures.

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“…Apesar da crescente demanda, a difusão do conhecimento técnico sobre o sistema LSF ainda é pouco sólida e a execução inadequada do sistema pode causar um baixo desempenho acústico na edificação e comprometer o conforto do usuário. Esse fato está diretamente relacionado a função do isolamento acústico, impedindo que os ruídos externos entrem no ambiente (Gomes et al, 2013;Santos, 2017;Terrados-Cepeda & Lizana, 2020;Wang et al, 2020).…”

Section: Introductionunclassified

Avaliação do desempenho acústico da lã de PET e placa de vermiculita no sistema construtivo light steel framing

Rezende

Carrasco

Magalhães

2022

RSD

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A busca por construções mais racionalizadas e sustentáveis como o sistema Light Steel Framing (LSF) vem crescendo mundialmente junto à necessidade de um melhor desempenho acústico do sistema, da mesma forma que aumenta a demanda por pesquisas em materiais reciclados ou com baixo impacto ambiental. Assim, o objetivo desta pesquisa é determinar o coeficiente de absorção sonora de um sistema de multicamadas formado por lã de PET e por placas de vermiculita, para ser utilizado no interior das paredes do sistema construtivo LSF, por meio de tubos de impedância acústica, conforme a ASTM E 1050 (2019). Os ensaios foram realizados em amostras de diâmetro de 60 mm de lã de PET e placa de vermiculita de forma individual e em amostras com duas camadas, sendo uma das combinações com a placa de vermiculita na parte mais interna do tubo e a lã de PET logo à frente e a outra forma, invertendo suas posições. Os resultados mostraram que o melhor desempenho da absorção sonora para frequências acima de 1000 Hz foi o sistema com duas camadas, sendo a vermiculita na parte mais interna do tubo e a lã de PET na parte mais externa. O desempenho mais baixo foi a da lã de PET analisada de forma isolada, não apresentou valores superiores a 0,5 em toda a faixa de frequência analisada. Logo, foi possível concluir que a utilização em conjunto da placa de vermiculita com a manta de lã de PET é um sistema absorvedor capaz de otimizar o desempenho acústico do sistema LSF.

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Axial compressive experiments and structural behaviour estimation of CFS composite walls sprayed with LPM

Cited by 12 publications

References 23 publications

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Mechanical behavior analysis of LEM-infilled cold-formed steel walls

Experimental Investigation and Numerical Analyses on Cyclic Behavior of the Prefabricated Concrete Frame Infilled with CFS-CLPM Composite Walls

Avaliação do desempenho acústico da lã de PET e placa de vermiculita no sistema construtivo light steel framing

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