Behaviour of fibre-reinforced RPC columns under different loading conditions

Hadi, Muhammad N.S.; Al-Tikrite, Ahmed

doi:10.1016/j.conbuildmat.2017.08.173

Cited by 22 publications

(9 citation statements)

References 22 publications

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“…An experimental investigation was conducted by Hadi and Al-Tikrite [25] and Al-Tikrite and Figure 3 shows the details of the experimentally tested specimens. Table 1 presents the main test matrix of the experimental work conducted by…”

Section: Summary Of the Experimental Programmentioning

confidence: 99%

“…The influence of steel fibre on the axially loaded members such as reinforced RPC columns has been investigated by Hadi and Al-Tikrite [25] and Al-Tikrite and Hadi [26]. It was reported that the inclusion of steel fibres in the reinforced RPC columns has effectively influenced the load carrying capacity and the ductility of the columns.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, the analytical axial load-bending moment interaction diagram of the RPC column reinforced with different types of steel fibres has not been investigated as yet. As such, this study ; as a complementary study for the studies conducted by Hadi and Al-Tikrite [25] and Al-Tikrite and Hadi [26]; investigate analytically the axial load-bending moment (P-M) interaction diagrams of the RPC columns that included different types of steel fibre (industrial and waste) in individual and hybrid forms. A stress-strain model for unconfined fibrous RPC was used to construct the P-M interaction diagrams.…”

Section: Introductionmentioning

confidence: 99%

“…A stress-strain model for unconfined fibrous RPC was used to construct the P-M interaction diagrams. The experimental investigations of Hadi and Al-Tikrite [25] and Al-Tikrite and Hadi [26] on the behaviour of RPC column reinforced with and without different types of steel fibres tested under concentric, eccentric and flexural loadings was used for validation. Also, the influence of the steel fibres properties such as aspect ratio on the performance of the fibrous RPC columns under different loading conditions is investigated analytically in this research paper.…”

Section: Introductionmentioning

confidence: 99%

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Axial-flexural interaction diagram of RPC columns reinforced with steel fibres

Al-Tikrite

Hadi

2019

Structures

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This paper presents analytical modelling of the axial-flexural behaviour of Reactive Powder Concrete (RPC) columns reinforced with and without steel fibres of different types (industrial and waste) in individual and hybrid forms. An analytical stress-strain model for unconfined RPC was used for the analysis of the axial loads and bending moments of the fibrous RPC columns. The layer-by-layer numerical integration method was used to calculate the axial load and bending moments in this study. The analytically developed axial load-bending moment (P-M) interaction diagrams were validated by using experimental results from the literature. A para-metric study was carried out to investigate the influence of the properties of steel fibres on the axial-flexural behaviour of fibrous RPC columns. It was found that the analytical unconfined stress-strain model used in this study well estimates the maximum axial loads and the maximum bending moments of the RPC columns reinforced with and without different types of steel fibres. Also, the influence of the properties of steel fibres is more pronounced at eccentric and flexural loading

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Section: Summary Of the Experimental Programmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Axial-flexural interaction diagram of RPC columns reinforced with steel fibres

Al-Tikrite

Hadi

2019

Structures

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“…e outcomes showed the hybridization between macrofiber and deformed fiber resulted in better ductility compared to only one kind of steel fiber addition or no fiber [19].…”

Section: Introductionmentioning

confidence: 99%

Structural Behavior of Ultrahigh‐Performance Fiber‐Reinforced Concrete Thin‐Walled Arch Subjected to Asymmetric Load

Yang

Zhou

Wang

et al. 2019

Advances in Civil Engineering

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Ultrahigh-performance fiber-reinforced concrete (UHPFRC) is an innovative material in the field of bridge engineering. With superior mechanical characteristics, this new material reduced the structural self-weight and extended the span of modern bridges. A series of tests should be conducted to establish reliable design rules for UHPFRC structures. This paper aimed at determining the compressive behavior of UHPFRC for thin-walled arch section design and a comparison was made with a normal concrete (NC) arch. Eighteen axial compression columns for arch section design and arches under asymmetric load were tested in this paper. Behaviors of the arches were assessed using various mechanical properties, including the failure pattern, load-deflection relationship, strain analysis, and analytical investigation. A finite element model (FEM) considering the material and geometric nonlinearity was developed to predict the behavior of the UHPFRC arch. Results indicated that a wall thickness of 50 mm with stirrups effectively restrained instability failure of the thin-walled compression columns. The cracking load and the ultimate load of the UHPFRC arch increased by 60% and 34%, respectively, when comparing with the NC arch. It showed the UHPFRC arch had higher load capacity and outstanding durability. The failure mode of the UHPFRC arch was similar to that of the NC arch, which belonging to the destruction of multihinges. However, the appearance of the plastic hinges was delayed, and a better elastic-plastic performance was obtained when using UHPFRC. The analytical formula for calculating the ultimate load of the UHPFRC arch was derived with high precision by using the limit equilibrium method. The results of the FEM showed good agreement with test results, and they were able to predict the behavior of the UHPFRC arches.

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