Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Study on axial compressive stiffness of RAC-encased RACFST composite columns
https://orcid.org/0000-0001-6722-1308
Abstract Twenty four specimens were designed to investigate the axial compressive stiffness of the recycled aggregate concrete(RAC)-encased recycled aggregate concrete-filled steel tube (RACFST) composite columns. The working mechanism of the RAC-encased RACFST composite column was investigated and the full range load–displacement curves of the composite columns were obtained. The interaction of each component of the composite column, i.e. the effect of the outer RAC from the stirrup and the steel tube, and the effect of the core RAC from the stirrup and the steel tube, were analyzed. The constitutive models of the outer unconfined RAC, the outer confined RAC, the core RAC were discussed. Thereupon, simple formulas were proposed to calculate the axial compressive stiffness of composite columns. These formulas can assist engineers to predict the axial deformation of structure in high-rise buildings more accurately.
Highlights The whole load–displacement curves and failure patterns of specimens were obtained. Working mechanism of RAC-encased RACFST composite columns was analyzed. Constitutive models for each component of the composite columns were adopted. The calculation methods of their axial compressive stiffness are presented and compared.
Study on axial compressive stiffness of RAC-encased RACFST composite columns
https://orcid.org/0000-0001-6722-1308
Abstract Twenty four specimens were designed to investigate the axial compressive stiffness of the recycled aggregate concrete(RAC)-encased recycled aggregate concrete-filled steel tube (RACFST) composite columns. The working mechanism of the RAC-encased RACFST composite column was investigated and the full range load–displacement curves of the composite columns were obtained. The interaction of each component of the composite column, i.e. the effect of the outer RAC from the stirrup and the steel tube, and the effect of the core RAC from the stirrup and the steel tube, were analyzed. The constitutive models of the outer unconfined RAC, the outer confined RAC, the core RAC were discussed. Thereupon, simple formulas were proposed to calculate the axial compressive stiffness of composite columns. These formulas can assist engineers to predict the axial deformation of structure in high-rise buildings more accurately.
Highlights The whole load–displacement curves and failure patterns of specimens were obtained. Working mechanism of RAC-encased RACFST composite columns was analyzed. Constitutive models for each component of the composite columns were adopted. The calculation methods of their axial compressive stiffness are presented and compared.
Study on axial compressive stiffness of RAC-encased RACFST composite columns
https://orcid.org/0000-0001-6722-1308
Abstract Twenty four specimens were designed to investigate the axial compressive stiffness of the recycled aggregate concrete(RAC)-encased recycled aggregate concrete-filled steel tube (RACFST) composite columns. The working mechanism of the RAC-encased RACFST composite column was investigated and the full range load–displacement curves of the composite columns were obtained. The interaction of each component of the composite column, i.e. the effect of the outer RAC from the stirrup and the steel tube, and the effect of the core RAC from the stirrup and the steel tube, were analyzed. The constitutive models of the outer unconfined RAC, the outer confined RAC, the core RAC were discussed. Thereupon, simple formulas were proposed to calculate the axial compressive stiffness of composite columns. These formulas can assist engineers to predict the axial deformation of structure in high-rise buildings more accurately.
Highlights The whole load–displacement curves and failure patterns of specimens were obtained. Working mechanism of RAC-encased RACFST composite columns was analyzed. Constitutive models for each component of the composite columns were adopted. The calculation methods of their axial compressive stiffness are presented and compared.
Study on axial compressive stiffness of RAC-encased RACFST composite columns
Cai, Min (Autor:in) / Ke, Xiaojun (Autor:in) / Xu, Deyi (Autor:in)
Thin-Walled Structures ; 162
12.02.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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