Tests on FRP-retrofitted tension-controlled eccentric and biaxial high strength concrete columns

Hassan, Wael M.; Hodhod, Osama A.; Hilal, M.S.; Bahnasaway, H.H.

doi:10.1016/j.compstruct.2021.114536

Cited by 5 publications

(3 citation statements)

References 38 publications

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“…The experimental M u of the SSRHSC columns assembled in this paper are also presented in Table 2, in which the experimental M u of the columns under eccentric axial compression was computed using Equation (24) and the experimental M u of columns subjected to four-point flexural load was computed using Equation (25).…”

Section: Column Designationmentioning

confidence: 99%

“…4,[20][21][22] However, the majority of these investigations paid attention to the response of circular HSC columns with FRP strengthening, 23,24 and only a few investigations were concerned with the response of square or rectangular HSC columns with FRP strengthening. [25][26][27][28] Although, in practice, square SRHSC (SSRHSC) columns are often found and usually resist combined flexural and axial loads (eccentric axial compression), 25,27,29,30 only two studies concerned with the response of FRP strengthened SSRHSC (FRPS-SSRHSC) columns under eccentric axial compression. 31,32 For FRPS-SSRHSC columns under eccentric axial compression, only one study 31 evaluated the influence of the vertical FRP strengthening on the performance of the SSRHSC columns.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the great potential of FRP for strengthening HSC columns, a significant number of investigations have been devoted to FRP strengthened HSC columns and HSC filled FRP tube (fiber oriented in transverse direction only) in order to capture the stress–strain response and performance of HSC columns with FRP strengthening 4,20–22 . However, the majority of these investigations paid attention to the response of circular HSC columns with FRP strengthening, 23,24 and only a few investigations were concerned with the response of square or rectangular HSC columns with FRP strengthening 25–28 . Although, in practice, square SRHSC (SSRHSC) columns are often found and usually resist combined flexural and axial loads (eccentric axial compression), 25,27,29,30 only two studies concerned with the response of FRP strengthened SSRHSC (FRPS‐SSRHSC) columns under eccentric axial compression 31,32 .…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new approach for the strength interaction diagram of FRP strengthened square steel reinforced high strength concrete columns

Mai,

Sheikh,

Nguyen

et al. 2023

Structural Concrete

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This paper proposed a new approach for the strength interaction diagram (N‐M diagram) of FRP strengthened square steel reinforced high strength concrete (SSRHSC) column, considering the influence of the applied load eccentricity on the ultimate conditions of FRP strengthened high‐strength concrete (HSC). The analytical model for the strength interaction diagram of FRP strengthened SSRHSC (FRPS‐SSRHSC) columns, which incorporated the stress–strain models of constitutive materials into the rectangular stress block (RSB) method, was developed and verified against test data. The strength interaction diagrams of FRPS‐SSRHSC columns developed based on the proposed analytical model matched well with the test results, while the strength interaction diagrams developed using available design codes overestimated the experimental strength interaction diagrams. The effect of confinement ratio and longitudinal FRP strengthening on the strength interaction diagrams was examined via parametric analyses. It was found that longitudinal strengthening had a negligible influence on the axial load and bending moment when the axial load was applied at a small eccentricity but had a substantial influence when the axial load was applied at a large eccentricity.

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Section: Column Designationmentioning

confidence: 99%