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Uncertainty of concrete strength in shear and flexural behavior of beams using lattice modeling

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 306-325 doi: 10.1007/s11709-022-0890-5

Abstract: This paper numerically studied the effect of uncertainty and random distribution of concrete strength in beams failing in shear and flexure using lattice modeling, which is suitable for statistical analysis. The independent variables of this study included the level of strength reduction and the number of members with reduced strength. Three levels of material deficiency (i.e., 10%, 20%, 30%) were randomly introduced to 5%, 10%, 15%, and 20% of members. To provide a database and reliable results, 1000 analyses were carried out (a total of 24000 analyses) using the MATLAB software for each combination. Comparative studies were conducted for both shear- and flexure-deficit beams under four-point loading and results were compared using finite element software where relevant. Capability of lattice modeling was highlighted as an efficient tool to account for uncertainty in statistical studies. Results showed that the number of deficient members had a more significant effect on beam capacity compared to the level of strength deficiency. The scatter of random load-capacities was higher in flexure (range: 0.680–0.990) than that of shear (range: 0.795–0.996). Finally, nonlinear regression relationships were established with coefficient of correlation values (R2) above 0.90, which captured the overall load–deflection response and level of load reduction.

Keywords： lattice modeling     shear failure     flexural failure     uncertainty     deficiency     numerical simulation    

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An experimental study on the flexural behavior of heavily steel reinforced beams with high-strength concrete

Yasser SHARIFI, Ali Akbar MAGHSOUDI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 1,   Pages 46-56 doi: 10.1007/s11709-014-0237-y

Abstract: Present study describes an experimental research on the behavior of high-strength concrete beams in ultimateTests are reported in this study on the flexural behavior of high-strength reinforced concrete (HSRC)Based on the obtained results, the behavior of such members is more deeply reviewed.

Keywords： high-strength concrete (HSC) members     flexural behavior     reinforced concrete     experimental results     ultimate    

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Effect of bond enhancement using carbon nanotubes on flexural behavior of RC beams strengthened with

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 131-143 doi: 10.1007/s11709-021-0787-8

Abstract: experimental results showed the ability of the CNTs to delay the initiation of the cracks and to enhance the flexuralThe studied parameters included concrete strength, flexural reinforcement ratio, and CFRP sheet configurationThe numerical results showed that utilization of CNTs in CFRP production improved the flexural capacityIn case of using underside-strip, the longer or the wider the sheet, the higher was the flexural capacityThe flexural enhancement of RC beams by strengthening with CNTs-modified CFRP decreased with increasing

Keywords： RC beams     flexural     strengthening     CFRP     CNTs     finite element    

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Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 341-355 doi: 10.1007/s11709-013-0221-y

Abstract: based composite reinforcement with ability to withstand high elongation while exhibiting pseudo-elastic behavior

Keywords： re-centering     shape memory alloys     concrete     composite     fiber reinforced polymer     scanning electron microscopy    

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Flexural behavior of high-strength, steel-reinforced, and prestressed concrete beams

Qing JIANG, Hanqin WANG, Xun CHONG, Yulong FENG, Xianguo YE

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 227-243 doi: 10.1007/s11709-020-0687-3

Abstract: To study the flexural behavior of prestressed concrete beams with high-strength steel reinforcement andhigh-strength concrete and improve the crack width calculation method for flexural components with suchThe failure modes, flexural strength, ductility, and crack width of the specimens were analyzed.

Keywords： high-strength steel reinforcement     high-strength concrete     flexural behavior     crack width    

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Flexural-torsional buckling behavior of aluminum alloy beams

Xiaonong GUO,Zhe XIONG,Zuyan SHEN

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 163-175 doi: 10.1007/s11709-014-0272-8

Abstract: This paper presents an investigation on the flexural-torsional buckling behavior of aluminum alloy beamsMoreover, the span, loading location and slenderness ratio influence the flexural-torsional bucklingSecondly, besides the experiments, a finite element method (FEM) analysis on the flexural-torsional bucklingbehavior of AAB is also conducted.According to the analytical results, it is indicated that the FEM is reasonable to capture mechanical behavior

Keywords： flexural-torsional buckling     aluminum alloy beams (AAB)     finite element method (FEM)     theoretical formula    

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Experimental study on flexural behavior of ECC/RC composite beams with U-shaped ECC permanent formwork

Zhi QIAO, Zuanfeng PAN, Weichen XUE, Shaoping MENG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1271-1287 doi: 10.1007/s11709-019-0556-0

Abstract: The flexural performance of the ECC/RC composite beam has been investigated experimentally with eightUnder the same reinforcement configurations, ECC/RC composite beams exhibit increases in flexural performance

Keywords： engineered cementitious composite (ECC)     durability     ECC/RC composite beam     permanent formwork     flexural    

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Flexural behavior of ECC hollow beams incorporating different synthetic fibers

Ahmmad A. ABBAS, Farid H. ARNA ’OT, Sallal R. ABID, Mustafa ÖZAKÇA

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 399-411 doi: 10.1007/s11709-021-0701-4

Abstract: concrete beams, were tested in this study to evaluate the influence of cross-sectional hollowing on their flexural

Keywords： hollow beam     hollowing ratio     ECC     flexural strength     ductility     toughness    

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Exploring the mechanical properties of steel- and polypropylene-reinforced ultra-high-performance concrete through numerical analyses and experimental multi-target digital image correlation

Frontiers of Structural and Civil Engineering   Pages 1228-1248 doi: 10.1007/s11709-023-0931-8

Abstract: prismatic beam specimens (total fiber by volume = 1%, and 2%) were tested under compressive, tensile, and flexuralThe obtained experimental data were subsequently used to discuss influential parameters, i.e., flexuralFurthermore, nonlinear regression analyses were conducted to obtain the flexural load-deflection curvesThe results showed that the MT-DIC method was capable of estimating the tensile and flexural responses

Keywords： UHPC     MT-DIC     flexural behavior     tensile behavior     steel fiber     polypropylene fiber    

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Hybrid flexural components: Testing pre-stressed steel and GFRP bars together as reinforcement for flexural

Mohammed FARUQI, Oved I. MATA, Francisco AGUINIGA

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 352-360 doi: 10.1007/s11709-017-0453-3

Abstract: However, the flexure behavior of a hybrid system reinforced by the combination of pre-stressed steelThe experimental flexural strength and deflection of slabs were compared with their respective sizes

Keywords： Partial pre-stressing     composite structures     GFRP bars    

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Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 378-389 doi: 10.1007/s11709-021-0706-z

Abstract: The results of the flexure test were collected and analyzed, and the flexural strength, the rate of damageThe results of the experimental tests showed that the flexural strength of the invented reinforcementMoreover, the flexural cracks decreased to a significant extent, manifesting extremely small and narrowwere verified through numerical simulations, which demonstrated excellent similarities between the flexural

Keywords： three-point flexure test     softening stage     flexural crack     flexural strain    

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Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1017-1028 doi: 10.1007/s11709-022-0871-8

Abstract: The effect of size on the biaxial flexural strength (BFS) of Portland cement mortar was investigated

Keywords： testing     apparatus & methods     plain concrete     tensile properties     biaxial flexural strength     triangular    

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The ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 191-201 doi: 10.1007/s11709-021-0792-y

Abstract: by backscattered electron images and by consequences to the compressive (Fc) and flexural

Keywords： cement fineness     interfacial transition zone     compressive and flexural strength    

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Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1251-1270 doi: 10.1007/s11709-019-0554-2

Abstract: RC columns are not only frequently constructed, but also their composite behavior makes the capacityIn the current article, novel empirical approaches are presented for predicting flexural, shear and axial

Keywords： flexural-shear-axial failure     drift capacity     reinforced concrete columns     statistical analysis     fragility    

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Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 704-721 doi: 10.1007/s11709-023-0941-6

Abstract: In this study, the flexural and longitudinal shear performances of two types of precast lightweight steel–ultra-highOwing to its better integrity, the CUS exhibits greater flexural stiffness and a higher ultimate bearingthe design parameters of the CUS, a parametric study is conducted to investigate their effects on the flexural

Keywords： precast steel–UHPC composite beam     flexural performance     longitudinal shear performance     parametric study    

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Title Author Date Type Operation

Uncertainty of concrete strength in shear and flexural behavior of beams using lattice modeling

Journal Article

An experimental study on the flexural behavior of heavily steel reinforced beams with high-strength concrete

Yasser SHARIFI, Ali Akbar MAGHSOUDI

Journal Article

Effect of bond enhancement using carbon nanotubes on flexural behavior of RC beams strengthened with

Journal Article

Experimental flexural behavior of SMA-FRP reinforced concrete beam

Adeel ZAFAR, Bassem ANDRAWES

Journal Article

Flexural behavior of high-strength, steel-reinforced, and prestressed concrete beams

Qing JIANG, Hanqin WANG, Xun CHONG, Yulong FENG, Xianguo YE

Journal Article

Flexural-torsional buckling behavior of aluminum alloy beams

Xiaonong GUO,Zhe XIONG,Zuyan SHEN

Journal Article

Experimental study on flexural behavior of ECC/RC composite beams with U-shaped ECC permanent formwork

Zhi QIAO, Zuanfeng PAN, Weichen XUE, Shaoping MENG

Journal Article

Flexural behavior of ECC hollow beams incorporating different synthetic fibers

Ahmmad A. ABBAS, Farid H. ARNA ’OT, Sallal R. ABID, Mustafa ÖZAKÇA

Journal Article

Exploring the mechanical properties of steel- and polypropylene-reinforced ultra-high-performance concrete through numerical analyses and experimental multi-target digital image correlation

Journal Article

Hybrid flexural components: Testing pre-stressed steel and GFRP bars together as reinforcement for flexural

Mohammed FARUQI, Oved I. MATA, Francisco AGUINIGA

Journal Article

Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Journal Article

Effect of size on biaxial flexural strength for cement-based materials by using a triangular plate method

Hakan T TURKER

Journal Article

The ITZ microstructure, thickness, porosity and its relation with compressive and flexural strength of

Journal Article

Enhanced empirical models for predicting the drift capacity of less ductile RC columns with flexural,

Mohammad Reza AZADI KAKAVAND, Reza ALLAHVIRDIZADEH

Journal Article

Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete

Journal Article