Flexural behaviour of precast steel fibres reinforces concrete composite slabs with different shapes

doi:10.18280/acsm.440307

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	Flexural behaviour of precast steel fibres reinforces concrete composite slabs with different shapes
	Luo, Bin
刊名	Annales de Chimie: Science des Materiaux
	2020-06-01
卷号	44 期号:3 页码:199-209
关键词	Aggregates Bending moments Concrete aggregates Elastoplasticity Fiber reinforced materials Load testing Precast concrete Reinforced concrete Shotcreting Trusses Ceramic aggregates Concrete composites Different shapes Fibre reinforced Flexural performance Load-deflection curve Recycled aggregate concrete Static load tests
ISSN号	01519107
DOI	10.18280/acsm.440307
英文摘要	This paper aims to disclose the flexural behaviours of concrete composite slabs (CCSs) with different materials and shapes. For this purpose, eight types of CCSs were prepared with three kinds of materials (i.e. natural concrete, steel fibre-reinforced slit ceramic aggregate concrete (SFRSCAC) and steel fibre-reinforced recycled aggregate concrete (SFRRAC)) and five different shapes (i.e. rough surface, rectangular-rib, cross-rib, bar truss and bar truss with rectangular-rib). Thus, eight full-size CCS were established and subjected to static load tests. Then, the load-deflection curves, load-rebar strain curves, load-concrete strain curves and strain-depth relationship were analysed in details. Finally, the calculation methods were proposed for the cracking and ultimate bending moments of the CCS. The results show that: (i) under the vertical load, the eight specimens shared similar flexural behaviours and all underwent the elastic phase, elastic-plastic phase and failure phase; (ii) the crack resistance of both SFRSCAC and SFRRAC were greatly improved through the addition of steel fibres; (iii) the shape of the bottom plate has a major impact on the flexural performance of the CCS, especially in the elastic-plastic phase and the failure phase; (iv) the effect of the bottom plate should be considered in the calculation of the cracking moment, and the contribution of steel fibres to the tensile zone should be taken into account for the calculation of ultimate bending moments of the CCSs fabricated by SFRSCAC or SFRRAC. © 2020 Lavoisier. All rights reserved.
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	International Information and Engineering Technology Association
WOS记录号	WOS:000566503600007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150828]
专题	土木工程学院
作者单位	Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Luo, Bin. Flexural behaviour of precast steel fibres reinforces concrete composite slabs with different shapes[J]. Annales de Chimie: Science des Materiaux,2020,44(3):199-209.
APA	Luo, Bin.(2020).Flexural behaviour of precast steel fibres reinforces concrete composite slabs with different shapes.Annales de Chimie: Science des Materiaux,44(3),199-209.
MLA	Luo, Bin."Flexural behaviour of precast steel fibres reinforces concrete composite slabs with different shapes".Annales de Chimie: Science des Materiaux 44.3(2020):199-209.