Steel-fibre high-strength concrete prisms confined by rectangular ties under concentric compression

Júnior, Humberto Correia Lima; Giongo, José Samuel

doi:10.1007/bf02480514

Cited by 16 publications

(8 citation statements)

References 3 publications

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“…Mean SD COV ACI Code (4) 1.0 0.185 0.598 0.227 37.964 CAN C ode (5) 1.0 0.262 0.622 0.224 36.008 NZS Code (6) 1.0 0.185 0.588 0.224 38.047 BS Code (7) 0.988 0.340 0.780 0.155 19.887 J&G Method (8) 1.0 0.186 0.567 0.212 37.352 I&M Method (9) 1.0 0.219 0.627 0.226 36.005 Shukur Method (10) 1.0 0.252 0.678 0.232 34.204 A&S Method (11) 1.0 0.260 0.674 0.228 33.792 AFREM Method (12) 1.0 0.185 0.598 0.227 37.965 CMB Method (13) 1.599 0.999 1.065 0.116 10.878 Al-Bakri Method (14) 3.280 1.007 1.346 0.412 30.623 Proposed Method [2] 1.434 0.831 1.016 0.103 10.102…”

Section: Max Minmentioning

confidence: 99%

“…This leads to a drop in the safety with rising l/h ratio. J&G (8) , Proposed [1], CMB (13) , AL-Bakri (14) , Proposed [2], Rangan (15) , Abbas (16) and Proposed [3] method give higher values P test /P calculate with increasing, of l/h ratio. This leads safety with rising l/h ratio.…”

Section: Figure (5): Comparison Between Experimental Data and Calcula...mentioning

confidence: 99%

“…with increasing e/h in ACI (4) , CAN (5) , NZ (6) and BS (7) Codes but in other methods still in almost the same level with increasing e/h. Effect of %: Figure (8) show the effect of increasing reinforcement ratio on uniaxial load. This figure show that some resistance predictions of test capacity are safe for the specimens columns in ACI (4) , CAN (5) , NZ (6) and BS (7) Codes, J&G (8) , I&M (9) , Shukur (10) , A&S (11) and AFREM (12) Methods.…”

Section: Figure (5): Comparison Between Experimental Data and Calcula...mentioning

confidence: 99%

“…Junior and Giongo (J&G) (8) : suggested that the magnified rectangular stress block factor   is a coefficient calculated as following:…”

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confidence: 99%

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Influence of Uniaxial Loading on the Strength of Slender Columns

AL-Najafi¹

2016

ETJ

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A column is said to be slender if its cross-sectional dimensions are small compared with its length, and its strength is reduced by second-order deformations. Several methods are available for slender column design including codes and researchers. A number (135) of slender column tests is used in this work; from the literature are reanalysis by different methods. Using these tests' results new proposal formulae are made for slender column design. When compared to existing methods the proposed one gives better correlation with test results. The proposed methods were derived using regression analyses for the based on different parameters. Theoretical analyses of columns are sampled to study the major variables affecting the column for each method of analysis. The paper is mainly concerned with making suggest and comparison between several methods analyzing slender columns.

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Section: Max Minmentioning

confidence: 99%

Section: Figure (5): Comparison Between Experimental Data and Calcula...mentioning

confidence: 99%

Section: Figure (5): Comparison Between Experimental Data and Calcula...mentioning

confidence: 99%

“…Junior and Giongo (J&G) (8) : suggested that the magnified rectangular stress block factor   is a coefficient calculated as following:…”

mentioning

confidence: 99%

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Influence of Uniaxial Loading on the Strength of Slender Columns

AL-Najafi¹

2016

ETJ

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“…The advantage of SFRC is that collapse under the compression at high strain compared to normal concrete so it behaved a ductile compressive behavior. Many studies [26][27][28][29][30] proved that use of steel fiber in high strength concrete columns improved its ductility, confinement, deformation, and prevented premature cover falling. Some researchers 2,4 used the fibers to improve the columns performance.…”

Section: Introductionmentioning

confidence: 99%

Behavior of RC columns incorporating with steel and recycled plastic fibers under eccentric load: An experimental work

Fayed

Mansour

2023

Structural Concrete

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There was a dearth of research into the behavior of eccentric RC columns reinforced with fibers, particularly recycled plastic fiber (RF) reinforced columns. The effect of employing end hooked steel fiber (EF) and RF on the performance of eccentric columns was explored in this experiment. Under compressive eccentric load, eight RC columns of 150 × 150 × 1000 mm with a 2% longitudinal reinforcement ratio were tested up to failure. The ratio of load eccentricity to column dimension was 15%. The fiber content (Vf) was variable. Both EF and RF had a Vf of 1%, 2%, and 3%. The applied load was recorded axial/lateral displacement and transverse/longitudinal reinforcement strain. The ultimate load (Pu), ultimate displacement, yield load, stiffness, and ductility index (∆) were all calculated to investigate column behavior. Results showed that adding fibers prevented the concrete cover separation hence prevented the sudden failure as it happened in the control column without fiber (P0). 1% RF and 2% EF enhanced Pu by 10.4% and 34.8%, respectively, while fiber content 3% decreased Pu. Stiffness of columns containing 1% RF and 2% EF was 16.3% and 33.8% higher than that of P0, respectively. The use of 1% and 2% EF delayed yield load, resulting in improved column performance. All fiber contents significantly improved ductility, with enhancement rates ranging from 4.2% with 3% RF to 146.2% with 3% EF. Also, use of 1% RF increased ductility by 70.6%.

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Mechanical Behavior of Slender Composite Columns under Axial Compression Load

Abdulla

2019

KSCE J Civ Eng

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Steel-fibre high-strength concrete prisms confined by rectangular ties under concentric compression

Cited by 16 publications

References 3 publications

Influence of Uniaxial Loading on the Strength of Slender Columns

Influence of Uniaxial Loading on the Strength of Slender Columns

Behavior of RC columns incorporating with steel and recycled plastic fibers under eccentric load: An experimental work

Mechanical Behavior of Slender Composite Columns under Axial Compression Load

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