Wire Rope Flexural Bonded Strengthening System on RC-Beams: A Finite Element Simulation

Haryanto, Yanuar; Gan, Buntara Sthenly; Maryoto, Agus

doi:10.14716/ijtech.v8i1.2734

Cited by 15 publications

(8 citation statements)

References 8 publications

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“…This type of behavior has also been reported elsewhere for RC beams and posttensions continuous tendons. 25,26 Cracking patterns obtained using ATENA (see Figure 35) also find a close agreement with those observed experimentally (see Figure 36). In general, ATENA was able to predict peak load and its corresponding mid-span deflection, crack patterns, and failure mode of FPP girder with a good accuracy.…”

Section: Finite Element Analysis Resultssupporting

confidence: 80%

“…A slight lower peak load was observed for analytical prediction in comparison to the experimental curve which can be acceptable given that the model did not overestimate the peak load. This type of behavior has also been reported elsewhere for RC beams and posttensions continuous tendons 25,26 . Cracking patterns obtained using ATENA (see Figure 35) also find a close agreement with those observed experimentally (see Figure 36).…”

Section: Finite Element Analysissupporting

confidence: 89%

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Structural behavior of full‐scale precast posttensioned girder with substandard transverse reinforcement–experimental and analytical study

Joyklad

Sirisonthi

Chaiyasarn

et al. 2022

Structural Concrete

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Rapid expansion of developed cities create problems mainly attributed to traffic congestions. Recently, Bangkok has faced rapid growth and the expanded neighborhoods require convenient public transport to be linked with central Bangkok and other parts of Thailand. Monorails can be an exceptional alternative to conventional skylines and subways thankfully to their excellent climbing abilities, lower noise, shorter constructions periods, and their capabilities to be adapted within limited spaces. Recently, Mass Rapid Transit Authority adopted monorail system to facilitate public in Bangkok's expanding neighborhoods. A four‐span continuous posttensioned girder system has been proposed for the straddle monorail system. Current study focuses on the structural response of full‐scale precast posttensioned (FPP) end girders in the proposed monorail system. Results suggested that the girder remained undamaged under service load while exhibiting a linear load versus vertical deflection response. Failure under ultimate load was accompanied by crushing of concrete, buckling of compression longitudinal bars and posttension tendons at the midspan. Further, experimental rosette strains suggested that concrete strains remained well below the ultimate of strains in the vicinity of high shear zones of the girder. Therefore, these results augment that the proposed design practice is safe against shear and the proposed girder can safely be used as the end girder in four‐span straddle monorail system. Nonlinear analysis of the girder was performed using advanced tool for engineering nonlinear analysis by adopting its built‐in constitutive laws for concrete and steel reinforcement. Predicted analytical response of FPP was in good agreement with experimental results in terms of load‐deflection curves, crack patterns, and failure mode.

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Section: Finite Element Analysis Resultssupporting

confidence: 80%

Section: Finite Element Analysissupporting

confidence: 89%

Structural behavior of full‐scale precast posttensioned girder with substandard transverse reinforcement–experimental and analytical study

Joyklad

Sirisonthi

Chaiyasarn

et al. 2022

Structural Concrete

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“…The service life of reinforced concrete structures decreases. To repair the decreasing capacity load of the beam, it can be strengthened by using wire rope [13].…”

Section: Introductionmentioning

confidence: 99%

Drying Shrinkage of Concrete Containing Calcium Stearate, (Ca(C18H35O2)2), with Ordinary Portland Cement (OPC) as a Binder: Experimental and Modelling Studies

et al. 2020

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This work investigates the effect of calcium stearate (Ca(C18H35O2)2) on concrete shrinkage behaviors by using experimental testing. The test specimens are cubes with each dimension given as 100 × 100 × 285 mm for shrinkage tests and cylinders with 150 mm diameter and 300 mm height for compressive strength tests. The calcium stearate with fractions of 0, 0.1, 0.2, and 0.3% from the weight of cement are used in the tests. The results showed that the shrinkage occurred in amounts of 0.079, 0.062, 0.065, and 0.060 mm for the specimens containing calcium stearate of 0, 0.1, 0.2, and 0.3%, respectively. Moreover, we also perform shrinkage modelling to explore a possibility to incorporate the calcium stearate fraction into the standard concrete shrinkage model. There are three well-known shrinkage models used here, i.e., the Sakata, the Japan Standard and the Bazant-Baweja models, where only the latter one is capable to capture our experimental results very well for different fractions of calcium stearate.

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“…Other studies showed that the flexural strength in the region of positive moment increased and had a ratio of 1.86 [12]. Optimisation via an initial pre-stressing force on the bonded strengthening and two pieces of steel wire rope shows that an initial pre-stressing force of 20% gave the highest flexural strength improvement [13,14]. Another method involved the addition of steel rebars in a compression block for reinforced concrete Tbeams which were strengthened with steel wire ropes in the region of negative moment; this method resulted in an increase in flexural strength and had a ratio of 2.93 [15].…”

Section: Introductionmentioning

confidence: 99%

On the Performance of Steel Wire Rope as the External Strengthening of Rc Beams With Different End-Anchor Types

et al. 2018

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This work investigated the performance of steel wire rope as an external strengthening for reinforced concrete beams with different end-anchor types. A study is conducted on reinforced concrete beams with the size of 100 mm x 150 mm x 1000 mm, consisting of 1 beam without strengthening (BTP); 1 beam strengthened with 2 steel wire ropes of diameter 6 mm with end-anchor type 1 (BPA1); and 1 beam strengthened with 2 steel wire ropes of diameter 6 mm with end-anchor type 2 (BPA2). It is found that the external strengthening of reinforced concrete beams using steel wire rope has the advantage of better serviceability due to its higher ductility than the beam without strengthening. The load-carrying capacity of reinforced concrete beams, which are externally strengthened with steel wire ropes, shows a significant increase of up to 60%. All specimens meet the minimum ductility requirements; in this case, the strengthening beams have other advantages, i.e. improved performance in preventing brittle failure. In this study, the increased stiffness is associated proportionately with the increased strength. This is supported by previous findings which suggest that the stiffness cannot be completely separated and independent of the strength. The failure in all specimens appeared in the same phases and all specimens experienced flexural failure. The ratios of end-anchor type 1 to end-anchor type 2 were close to 1 for all the parameters studied, which means that both types of end-anchor make an equally good contribution to the performance of steel wire rope.

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Wire Rope Flexural Bonded Strengthening System on RC-Beams: A Finite Element Simulation

Cited by 15 publications

References 8 publications

Structural behavior of full‐scale precast posttensioned girder with substandard transverse reinforcement–experimental and analytical study

Structural behavior of full‐scale precast posttensioned girder with substandard transverse reinforcement–experimental and analytical study

Drying Shrinkage of Concrete Containing Calcium Stearate, (Ca(C18H35O2)2), with Ordinary Portland Cement (OPC) as a Binder: Experimental and Modelling Studies

On the Performance of Steel Wire Rope as the External Strengthening of Rc Beams With Different End-Anchor Types

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