Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Mohsenzadeh, Sajjad; Maleki, A.; Yaghin, Mohammad Ali Lotfollahi

doi:10.5829/ije.2019.32.12c.06

Cited by 4 publications

(5 citation statements)

References 18 publications

(20 reference statements)

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“…The slump flow diameter of specimens containing 0, 0.25, 0.5, 0.75, 1 and% GF were decreased 0.14, 0.29, 2.4, and 2.7 %. Fibers prevent the flowability of cement paste [38,39]. Güneyisi et al [40] showed that using 1% GF reduces the slump flow diameter by about 6% [40].…”

Section: Fresh Concrete Resultsmentioning

confidence: 99%

Strengthening of RC Beams Using SCC Jacket Consisting of Glass Fiber and Fiber-Silica Fume Composite Gel

Mohsenzadeh

Maleki

Lotfollahi-Yaghin

2021

IJE

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In this paper, strengthening of RC beams with self-consolodating concrete (SCC) jacket containing glass fiber (GF) and fiber-silica fume composite gel (FSCG) were investigated. FSCG can use as a substitute for a part of the cement that contains silica fume powder, polypropylene fibers, superplasticizer, concrete waterproof, and some other admixtures. In order to evaluate the performance of the proposed jacket, twelve beams were strengthened and a control beam was made. The variables included the amount of glass fibers consumed in the jacket (0, 0.25, 0.5, 0.75, 1 and 1.25% by volume) and the amount of FSCG gel (0 and 7%), respectively. Fresh and hardened concrete properties and flexural capacity of RC beams were investigated. The use of FSCG in RC jackets can compensate well for the deficiency in strength due to the GF entry into the concrete matrix. High affinity of these materials improve the cohesion between cement and GFs. RC jackets containing GF and FSCG increased the beams' energy absorption capacity by about 89 to 463%, depending on the percentages of GFs. RC jacket containing GF and FSCG delays the growth of the primary crack and it can significantly increase the maximum load. Also, Glass Fiber Reinforced Polymer (GFRP) sheets have poor performance compared to the proposed method due to separation from the surface of the strengthened beams, and their load-bearing capacity and energy absorption are lower.

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Section: Fresh Concrete Resultsmentioning

confidence: 99%

Strengthening of RC Beams Using SCC Jacket Consisting of Glass Fiber and Fiber-Silica Fume Composite Gel

Mohsenzadeh

Maleki

Lotfollahi-Yaghin

2021

IJE

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“…The traction-separation response was described by three failure modes: opening (mode I), sliding I (mode II), and sliding II (mode III). Through literature, many experimental and numerical works have been determined the cohesive damage parameters between the FRCM composite and concrete [13][14][15][16][17] and these values will guide the researcher in the future studies. Based on these studies, the CBM parameters including initial elastic stiffness ( 0 ) in kN/mm, maximum shear stress ( ) , and fracture energy ( ) N/mm, are ranged between (1.5-9.85), (0.2-1.5), and (0.24-1.5); respectively.…”

Section: Frcm-concrete Interface Modelmentioning

confidence: 99%

“…Most of the previous studies focused on theoritical and numerical studies of structures strengthened with FRP systems [14][15][16][17]. A numerical finite element analysis of RC beams strengthened with EB-FRP techniques was implemented [18].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Flexural Behavior of Concrete Beams Strengthened with Fiber Reinforced Cementitious Matrix Considering Different Concrete Compressive Strength and Steel Reinforcement Ratio

Aljazaeri

Al-Jaberi

2021

IJE

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Concrete structures retrofitted with fiber reinforced cementitious matrix (FRCM) have become widespread due to their mechanical and durability performances. However, the behavior of FRCMstrengthened RC members under service loads is still a concern, and more efforts need to be done. In this study, a nonlinear three-dimensional finite element (FE) model has been developed to study the performance of reinforced concrete (RC) beams strengthened by (FRCM). The model was validated against the experimental results gathered from six beams tested under three-points bending. Consequently, the primary numerically studied parameters were longitudinal steel reinforcement ratio and concrete compressive strength. A cohesive damage parameters were investigated to represent the experimental results. Also, the theoretical flexural capacity of strengthened beams based on ACI-549.4R code was evaluated based on the numerical method results. As a conclusion, the numerical results are in a very good agreement with the experimental ones regarding yielding load, ultimate load, and failure mode. In addition, the developed models from parametric studies concluded the insignificant effect of concrete compressive strength on increasing the ultimate capacity of strengthened beam. However, the steel reinforcement ratio has a major impact on enhancing the ultimate capacity of strengthened beams.

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“…It has accelerated the advancements in numerous fields of research, such as fluid mechanics, mechanics of structures, fracture mechanics, heat conduction, and biomechanics. It has been proven that this approach, which is labor-intensive to build, calculate, and analyze models, is successful in resolving problems of design improvements [ 30 , 31 , 32 ]. The Abaqus FEM code has been effectively used in much culvert-related research for design and analysis [ 16 , 33 , 34 , 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Haunch Geometry and Additional Steel Reinforcement on Load Carrying Capacity of Reinforced Concrete Box Culvert

et al. 2023

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The culverts are used to safely convey water under railways, highways, and overpasses. They are utilized in drainage areas or water channels and in areas where the bearing capacity of soil is low. The design and construction of this crucial infrastructure need to be improved to meet contemporary demands of reliability and affordability. Precast reinforced box culverts are popular alternatives as they ensure strength, durability, rigidity, and economy. This research seeks to develop an effective and affordable design improvement procedure for a precast box culvert using modern numerical tools. The Finite Element Method (FEM) based approach is used in studying the effects of haunch geometry and additional steel reinforcement on the load-bearing capacity of box culverts. A conventional box culvert is analyzed to create the numerical models in the Abaqus FEM code and to investigate the load-bearing capacity of culverts with an expanded span. The outcomes of the study reveal the critical places for stress concentration as well as the location of maximum damage. It is found that haunch geometry and additional reinforcement at these critical places significantly affect the load-carrying capacity of a culvert. From the comparison of capacity curves of models with and without haunches and diagonal reinforcement, it is found that a 25% increase in load-carrying capacity is achievable with the recommended changes. The proposed design improvement technique can be employed for the cost-effective and safe design of a concrete box culvert with larger span lengths and high water-flowing capacities. The findings of this study are expected to assist practitioners in strength enhancement tasks of box culverts for increased structural stability and drainage efficiency.

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Experimental and Numerical Study of Energy Absorption Capacity of Glass Reinforced SCC Beams

Cited by 4 publications

References 18 publications

Strengthening of RC Beams Using SCC Jacket Consisting of Glass Fiber and Fiber-Silica Fume Composite Gel

Strengthening of RC Beams Using SCC Jacket Consisting of Glass Fiber and Fiber-Silica Fume Composite Gel

Numerical Study on Flexural Behavior of Concrete Beams Strengthened with Fiber Reinforced Cementitious Matrix Considering Different Concrete Compressive Strength and Steel Reinforcement Ratio

Influence of Haunch Geometry and Additional Steel Reinforcement on Load Carrying Capacity of Reinforced Concrete Box Culvert

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