Experimental behaviour of damaged masonry arches strengthened with steel fiber reinforced mortar (SFRM)

Simoncello, Nicolò; Zampieri, Paolo; González-Libreros, Jaime; Pellegrino, Carlo

doi:10.1016/j.compositesb.2019.107386

Cited by 42 publications

(16 citation statements)

References 49 publications

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“…Steel fibers reinforced mortar was also used as an external strengthening method for structural member, such as beams and masonry walls [17][18]. The results prove the effectiveness of the steel fiber reinforced mortar in increasing strength and stiffness.…”

Section: Introductionmentioning

confidence: 85%

Cement-Based Mortar Panels Reinforced with Recycled Steel Fibers in Flexural Strengthening of Concrete Beams

Zamanzadeh

Hosseinzadeh

Bashiri

2021

Int. j. eng. technol. innov.

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The effectiveness of a strengthening technique devised for the concrete beams subjected to bending is presented in this study, where recycled-steel fiber-reinforced mortar (RSFRM) panels are used as an eco-friendly replacement for ordinary steel fibers. Different mix designs for RSFRM are first investigated experimentally by testing 160 × 400 × 400 mm3 notched beam-like specimens in 3-point bending, while 100 × 100 × 100 mm3 cubes are tested in compression, to optimize the mix design. Finite element (FE) analyses are carried out on strengthened and non-strengthened beams to investigate the effectiveness of the proposed strengthening technique based on RSFRM panels. Starting from the tests on notched beams, an inverse FE analysis is used to optimize the RSFRM’s parameters to be implemented into the numerical model. The results show that applying RSFRM panels not only markedly increases the load-bearing capacity of the beams (up to 3.19 times with 3% of fibers by volume), but also changes their fracture mechanism from brittle to ductile fracture.

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Section: Introductionmentioning

confidence: 85%

Cement-Based Mortar Panels Reinforced with Recycled Steel Fibers in Flexural Strengthening of Concrete Beams

Zamanzadeh

Hosseinzadeh

Bashiri

2021

Int. j. eng. technol. innov.

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“…When used in structural applications, the strength of FRPs will provide the load-bearing capacity of the structures [46,47]. The high strength-to-weight ratio, good insulation character, and excellent electrochemical corrosion resistance of FRPs lead them to be an alternative to the traditional steel reinforcement concrete, especially in coastal regions [48,49].…”

Section: Prefabricated Polymer Elementsmentioning

confidence: 99%

Recent Progress in Polymer-Based Building Materials

Shen

Jiang

Lin

et al. 2020

International Journal of Polymer Science

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With the development of human society, the requirements for building materials are becoming higher. The development of polymer materials and their application in the field of architecture have greatly enhanced and broadened the functions of building materials. With the development of material science and technology, many functional materials have been developed. Polymer materials have many excellent properties compared with inorganic materials, and they can also be improved to enhance functional properties by blending or adding various additives (such as flame retardants, antistatic agents, and antioxidants). In this paper, polymer-based building materials are introduced with three classes according to the applications, that is, substrates, coatings, and binders, and their recent signs of progress in the preparations and applications are carefully demonstrated.

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“…It shows that the UHPC reinforcement layer still has great bearing potential. In fact, the failure process of the masonry arch bridge reinforced with the steel fiber-reinforced mortar 10 Advances in Civil Engineering layer included brick cracking, the detachment of the reinforcement layer, the development of cracks on the layer surface, brick crashing, layer cracking, and the formation of hinges [29], and so do the failure process of concrete arch bridge reinforced with UHPC. However, the segment model test cannot continue to carry out the load process of the UHPC reinforcement layer alone because the original structure crushing marks the end of the test, so the segment model test fails to fully reflect the advantages of UHPC reinforcement.…”

Section: Ultimate Bearing Capacity Of the Segmentmentioning

confidence: 99%

Experiment on the Segment Model of a Plain Concrete Arch Bridge Reinforced with UHPC Composite Arch Circle

Wang

Zhou

Yang

et al. 2020

Advances in Civil Engineering

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This research aims to investigate the efficiency of strengthening of plain concrete (PLC) arches using UHPC. Thirteen segment arch models reinforced using normal concrete (NC, group N) or ultra-high performance concrete (UHPC, group U) were tested in this study. The failure mode, strain distribution, and calculation of bearing capacity of PLC arch bridges reinforced with UHPC arch circle were analyzed. The experimental results showed that the technology of chiseling and planting bars could provide sufficient bond strength on the interface between the UHPC reinforcement layer and NC substrate. Both groups showed one or two failure modes of the concrete crushing of the original structure and the interface failure. However, no cracks appeared in the UHPC reinforcement layer, indicating that there was still large bearing potential. The strain distribution of the whole section in group N was consistent with the plane section assumption. But, this phenomenon was not observed in group U since the strain of the reinforcement layer was ahead (R-side loading) or behind (L-side loading) that of original structures. A simplified calculation formula was used for calculating the bearing capacity of group U. It was accurate for specimens loaded on the L-side, and an enhancement coefficient of 0.15 should be considered for R-side loading specimens.

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Experimental behaviour of damaged masonry arches strengthened with steel fiber reinforced mortar (SFRM)

Cited by 42 publications

References 49 publications

Cement-Based Mortar Panels Reinforced with Recycled Steel Fibers in Flexural Strengthening of Concrete Beams

Cement-Based Mortar Panels Reinforced with Recycled Steel Fibers in Flexural Strengthening of Concrete Beams

Recent Progress in Polymer-Based Building Materials

Experiment on the Segment Model of a Plain Concrete Arch Bridge Reinforced with UHPC Composite Arch Circle

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