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Behavior of steel fibers reinforced self-stressing and self-compacting concrete-filled steel tube subjected to bending
Graphical abstract
HighlightsStudy on steel fibers reinforced self-compacting self-stressing CFST under bending.Self-stress slightly increases flexural capacity and improves flexural rigidity.Steel fibers lengthen the elastic stage and improve flexural capacity.Design equations for the flexural capacity of FSSCFST specimens are proposed.
AbstractThis paper described an experimental work for steel fibers reinforced self-stressing and self-compacting concrete-filled steel tube (FSSCFST) specimens subjected to bending. The study aimed to evaluate the effect of self-stress and steel fibers on the behavior of self-compacting concrete filled steel tube (SCCFST) specimens. Twenty-seven SCCFST specimens reinforced with steel fibers, self-stress or their couple were tested under bending. The variables considered in the test were self-stress, thickness of steel tube, concrete strength and steel fiber volume percentage. Experimental results showed that the FSSCFST specimens behaved in a relatively ductile manner, but steel fibers and self-stress failed to change the failure mode of CFST specimens. Self-stress can slightly increase the flexural capacity and lead to a higher flexural rigidity. Steel fibers can lengthen the elastic stage and improve the flexural capacity of FSSCFST specimens. This beneficial effect of steel fibers decreased with the increasing of steel tube thickness. A formula was proposed to predict the flexural capacity of FSSCFST specimens, and the comparison between predictions and experiment results proved the accuracy of the formula.
Behavior of steel fibers reinforced self-stressing and self-compacting concrete-filled steel tube subjected to bending
Graphical abstract
HighlightsStudy on steel fibers reinforced self-compacting self-stressing CFST under bending.Self-stress slightly increases flexural capacity and improves flexural rigidity.Steel fibers lengthen the elastic stage and improve flexural capacity.Design equations for the flexural capacity of FSSCFST specimens are proposed.
AbstractThis paper described an experimental work for steel fibers reinforced self-stressing and self-compacting concrete-filled steel tube (FSSCFST) specimens subjected to bending. The study aimed to evaluate the effect of self-stress and steel fibers on the behavior of self-compacting concrete filled steel tube (SCCFST) specimens. Twenty-seven SCCFST specimens reinforced with steel fibers, self-stress or their couple were tested under bending. The variables considered in the test were self-stress, thickness of steel tube, concrete strength and steel fiber volume percentage. Experimental results showed that the FSSCFST specimens behaved in a relatively ductile manner, but steel fibers and self-stress failed to change the failure mode of CFST specimens. Self-stress can slightly increase the flexural capacity and lead to a higher flexural rigidity. Steel fibers can lengthen the elastic stage and improve the flexural capacity of FSSCFST specimens. This beneficial effect of steel fibers decreased with the increasing of steel tube thickness. A formula was proposed to predict the flexural capacity of FSSCFST specimens, and the comparison between predictions and experiment results proved the accuracy of the formula.
Behavior of steel fibers reinforced self-stressing and self-compacting concrete-filled steel tube subjected to bending
Lu, Yiyan (Autor:in) / Liu, Zhenzhen (Autor:in) / Li, Shan (Autor:in) / Li, Weijie (Autor:in)
Construction and Building Materials ; 156 ; 639-651
04.09.2017
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2017
| British Library Online Contents | 2017
| British Library Online Contents | 2017
| British Library Online Contents | 2018