Bending performance of ECC-RC composite beam reinforced with textile
•TRECC-RC composite beam has good crack control ability.•The crack width of TRECC-RC composite beam reduced with increase of textile ratio.•The textile can improve the bearing capacity of TRECC-RC composite beam.•Textile ratio can improve the stiffness of TRECC-RC composite beams slightly. To invest...
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Veröffentlicht in: | Construction & building materials 2021-06, Vol.287, p.123079, Article 123079 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | •TRECC-RC composite beam has good crack control ability.•The crack width of TRECC-RC composite beam reduced with increase of textile ratio.•The textile can improve the bearing capacity of TRECC-RC composite beam.•Textile ratio can improve the stiffness of TRECC-RC composite beams slightly.
To investigate the bending performance of composite beams comprising engineered cementitious composites and reinforced concrete (ECC-RC), which are reinforced with a textile (TRECC-RC composite beams), thirteen beams were designed and tested, including one reinforced concrete (RC) beam, three ECC-RC composite beams and nine TRECC-RC composite beams. The test variables included the ECC height ratio and textile ratio. The results revealed that all TRECC-RC composite beams underwent ductile failure with the features of tension steel yielding, partial textile fracture, and concrete crushing. Compared with ECC-RC composite beam, the TRECC-RC composite beam also exhibited a remarkable capacity of crack control and the textile application further reduced the crack width. Both the ECC height ratio and textile ratio had a minor effect on the crack distribution of the TRECC-RC composite beam. The textile effectively improved the bearing capacity even if the ECC height was reduced. The ECC height ratio had a minor effect on the stiffness of the TRECC-RC composite beam; however, the textile ratio resulted in slight improvement. The plane section assumption is valid for all composite beams. |
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ISSN: | 0950-0618 1879-0526 |
DOI: | 10.1016/j.conbuildmat.2021.123079 |