Non-linear finite element investigation on the behavior of CFRP strengthened steel square HSS columns under compression

Devi, Urmi; Amanat, Khan Mahmud

doi:10.1007/s13296-015-9013-7

Cited by 17 publications

(3 citation statements)

References 25 publications

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“…The increase percentage in axial strength and stiffness ranged from 6 to 71% and 10 to 17%, respectively. Urmi and Khan [14] investigated numerically using shell elements CFRP strengthening of square HSS columns (mild steel). Then, A parametric study was focused on selected non-compact AISC (American Institute of Steel Construction) steel square HSS columns.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Steel Square HSS Columns Strengthened with Polymer-mortar

Elsayed

Debaiky

Khalil

et al. 2019

AIR

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This paper presents the results of finite element (FE) analysis of axially loaded square hollow structural steel (HSS) columns, strengthened with polymer-mortar materials. Three-dimensional nonlinear FE model of HSS slender columns were developed using thin-shell element, considering geometric and material nonlinearity. The polymer-mortar strengthening layer was incorporated using additional layers of the shell element. The FE model has been performed and then verified against experimental results obtained by the authors [1]. Good agreement was observed between FE analysis and experimental results. The model was then used in an extended parametric study to examine selected AISC square HSS columns with different cross-sectional geometries, slenderness ratios, thicknesses of mortar strengthening layer, overall geometric imperfections, and level of residual stresses. The effectiveness of polymer-mortar in increasing the column’s axial strength is observed. The study also demonstrated that polymer-mortar strengthening materials is more effective for higher slenderness ratios. An equivalent steel thickness is also accounted for the mortar strengthened HSS columns to discuss the effectiveness of polymer-mortar strengthening system. The polymer-mortar strengthening system is more effective for HSS columns with higher levels of out-of-straightness. Level of residual stress has a slight effect on the gain in the column’s axial strength strengthened with polymer-mortar.

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation on Steel Square HSS Columns Strengthened with Polymer-mortar

Elsayed

Debaiky

Khalil

et al. 2019

AIR

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“…A relatively recent advent to compression members is the combination of metal and FRP tubes produced by external bonding fibers to the metal section. In axial compression applications, the motivation for strengthening thin-walled steel structures with FRP is to control buckling deformations and/or provide increased compression capacity [2]. Shaat and Fam (2006) [3] experimented short and long HSS columns with high modulus CFRP sheets and increase the column axial strength by up to 23%.…”

Section: Introductionmentioning

confidence: 99%

“…Bambach (2006Bambach ( ,2010aBambach ( ,2010b [6][7][8] experimented short hollow structural section(HSS) with different fiber layouts, and observed that the capacity and mean crush load of the composite metal-CFRP HSS exceed the sum of those for the individual metal HSS and CFRP HSS, by up to 1.8 times. A three dimensional finite element model has been developed by Devi [2], and the parametric studies show that the capacity increases with the increase in the number of CFRP layers. It is clear from the above literature review that FRP is good at strengthening the compression member, especially to the HSS columns.…”

Section: Introductionmentioning

confidence: 99%

Ultimate Capacity of Uniaxially Compressed Steel Plates Strengthened by CFRP

Tao

Cao

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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This paper presents experimental studies on the ultimate capacity of steel plates strengthened by Carbon Fiber-reinforced polymer (CFRP). Some 40 plates are tested under uniaxial compression along its longitudinal direction. The effect of CFRP pasting, plate slenderness ratio and the boundary conditions are illustrated on the studies. The study shows that the steel plates strengthened by CFRP exhibited higher capacity in comparison to similar plates without CFRP. It also can be seen that multi-layers CFRP pasting were better than the single layer, pasting multi-direction is better than pasting uni-direction, pasting the transverse layer outside is better than pasting the longitudinal layer outside, and the effect of longitudinal layer was better than the transverse layer.

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Study on Buckling Behavior of Prestressed CFRP-Reinforced Steel Columns by FEM and ANN

Feng

Meng

et al. 2021

Lecture Notes in Civil Engineering

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Non-linear finite element investigation on the behavior of CFRP strengthened steel square HSS columns under compression

Cited by 17 publications

References 25 publications

Numerical Investigation on Steel Square HSS Columns Strengthened with Polymer-mortar

Numerical Investigation on Steel Square HSS Columns Strengthened with Polymer-mortar

Ultimate Capacity of Uniaxially Compressed Steel Plates Strengthened by CFRP

Study on Buckling Behavior of Prestressed CFRP-Reinforced Steel Columns by FEM and ANN

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