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Stiffened concrete-filled steel tubes: A systematic review
Abstract The behavior of concrete filled steel tubular (CFST) elements with different types of stiffening measures has been wildly investigated during the past two decades through experimental, analytical, and numerical approaches. The previous studies highlighted the importance of the presence of internal and external stiffeners to enhance the structural performance of CFST elements under different loading conditions. In this paper, a systematic methodology is proposed in order to rigorously review the current knowledge in literature about stiffened CFSTs. The reviewed studies include tests of static axial compression, pure bending and combined of static loading actions as well as the cyclic behavior and the fire resistance. A coherent taxonomy regarding the research of stiffened CFSTs is proposed based on the loading conditions besides their cross-sectional shape and type of stiffeners. The study also presents a number of practical applications of stiffened CFSTs in different engineering projects. Finally, concluding remarks, current research gap and future research directions on stiffened CFST are provided and discussed.
Highlights The resulting taxonomy provides an extensive list of the prior research landscape of stiffened CFST that can help researchers to discover new research lines that have not been explored yet. The review illustrated the importance of using internal and external stiffeners under different loading conditions. The vast majority of prior research was conducted on a square or rectangular CFST with internal stiffeners. More attention needs to be given to examine the behavior of CFSTs under bending, combined action, and fire conditions.
Stiffened concrete-filled steel tubes: A systematic review
Abstract The behavior of concrete filled steel tubular (CFST) elements with different types of stiffening measures has been wildly investigated during the past two decades through experimental, analytical, and numerical approaches. The previous studies highlighted the importance of the presence of internal and external stiffeners to enhance the structural performance of CFST elements under different loading conditions. In this paper, a systematic methodology is proposed in order to rigorously review the current knowledge in literature about stiffened CFSTs. The reviewed studies include tests of static axial compression, pure bending and combined of static loading actions as well as the cyclic behavior and the fire resistance. A coherent taxonomy regarding the research of stiffened CFSTs is proposed based on the loading conditions besides their cross-sectional shape and type of stiffeners. The study also presents a number of practical applications of stiffened CFSTs in different engineering projects. Finally, concluding remarks, current research gap and future research directions on stiffened CFST are provided and discussed.
Highlights The resulting taxonomy provides an extensive list of the prior research landscape of stiffened CFST that can help researchers to discover new research lines that have not been explored yet. The review illustrated the importance of using internal and external stiffeners under different loading conditions. The vast majority of prior research was conducted on a square or rectangular CFST with internal stiffeners. More attention needs to be given to examine the behavior of CFSTs under bending, combined action, and fire conditions.
Stiffened concrete-filled steel tubes: A systematic review
Alatshan, Faesal (Autor:in) / Osman, Siti Aminah (Autor:in) / Hamid, Roszilah (Autor:in) / Mashiri, Fidelis (Autor:in)
Thin-Walled Structures ; 148
30.12.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Seismic performance of stiffened concrete-filled double skin steel tubes
Elsevier | 2020
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