Compressive strength of reinforced concrete column confined by composite material

Lin, Huei‐Jeng; Liao, Chin-I

doi:10.1016/j.compstruct.2003.11.001

Cited by 74 publications

(26 citation statements)

References 16 publications

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“…Various confinement strength model have been reported by [17] to predict the compressive fractured strength of con-fined column namely, [18]; Hoshikuma et al; Hoppel et al; Samaan et al; Xiao and Wu. ; most of them experimentally validated.…”

Section: Confined Concrete Strength Modelmentioning

confidence: 99%

Modified Push-out Tests for Determining Shear Strength and Stiffness of HSS Stud Connector-Experimental Study

Prakash¹,

Anandavalli²,

Madheswaran³

et al. 2012

CMATERIALS

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This paper presents, modified push-out tests conducted for the determination of shear strength and stiffness of high strength steel (HSS) studs. The HSS studs having ultimate strength of 900 MPa and yield strength of 680 MPa are used in the modified push-out specimens. The reinforced concrete slabs of push-out specimens which have provided dimensions as recommended by BS5440 part-v, but with enhanced transverse reinforcement for higher splitting strength. Enhancement of splitting strength is considered due to confinement of the concrete with hoop type transverse reinforcement at smaller spacing. Mander's model is considered to estimate the enhancement in the splitting strength due to increase in the confined compressive strength of concrete. Novelty of this study may be considered in highlighting the importance of confined concrete strength while designing pushout specimens. Experimental value of shear strength of HSS studs is found to fall in between the extreme bounds specified by the Eurocode 4 formulae. Further improvements are possible by the addition of steel fibres concrete in the vicinity of HSS studs embedded in RC slab of push-out specimens.

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Section: Confined Concrete Strength Modelmentioning

confidence: 99%

Modified Push-out Tests for Determining Shear Strength and Stiffness of HSS Stud Connector-Experimental Study

Prakash¹,

Anandavalli²,

Madheswaran³

et al. 2012

CMATERIALS

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“…Therefore, number of confinement models has been developed to model the stressstrain behavior of circular confined concrete [3][4][5][8][9]17,19,[22][23][24][25][26].…”

Section: Shape and Geometries Of Cross-sectionmentioning

confidence: 99%

State-of-the-art Studies on the FRP-confined Concrete

Sun¹,

Luo²

2017

Proceedings of the 2016 International Conference on Architectural Engineering and Civil Engineering

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Abstract-The application of FRP in civil engineering has emerged as a popular method of column retrofitting and strengthening. Numerous experimental studies have proven that the confinement with FRP-wrap or tube encasement could enhance the strength, ductility and durability of concrete columns. The variation of each distinct experimental test result to its actual mean value is the general cause of modeling inaccuracy, and this appears to be a lack of consensus among the research community. This paper critically reviewed the current experimental studies with the emphasis on the revelation of the mechanical behavior of FRP-confined concrete and analytical study of its behavior. Lastly, some comments are made on the development trends of study on the mechanical behavior of FRP-confined concrete columns.

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“…The current database [1,[4][5][6][7][8]11,12,[21][22][23]41,42,[49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] composed of n = 198 averaged data was updated with n = 40 data [9,10,[22][23][24][25][26]35,64] from the recent literature on HSC, UHSC, and UHPC for the FRP sheet types mentioned above. Meanwhile, UHSC and UHPC strength data in the literature are available up to 113.6 and 188 MPa, respectively.…”

Section: Reference Failure Criterion For Rock Modified Form For Frp Cmentioning

confidence: 99%

A Design-Oriented Combined Model (7 MPa to 190 MPa) for FRP-Confined Circular Short Columns

Girgin

2015

Polymers

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This study addresses a design oriented combined model to predict the ultimate strengths and ultimate strains in an extensive range of unconfined strength (7 to 190 MPa) for the axially loaded fiber-reinforced polymer (FRP)-wrapped circular short columns. Modified Hoek-Brown strength criterion, which was previously extended to FRP-confined concrete from 7 to 108 MPa, is revisited and verified. An empirical strength model beyond 108 MPa encompassing ultra-high strength concrete (UHSC) and ultra-high performance concrete (UHPC) data, as well as empirical strain models, are defined to accomplish the design oriented combined model. This article especially focuses on the verification of the proposed strain models. The assessment performances of those models for carbon FRP (CFRP) and glass FRP (GFRP) confinement are compared with specific models in the current literature. Strength and strain predictions for UHSC and UHPC are integrated into the design oriented combined model as well. The assessments on this model agree with the experimental results in high accuracy.

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Compressive strength of reinforced concrete column confined by composite material

Cited by 74 publications

References 16 publications

Modified Push-out Tests for Determining Shear Strength and Stiffness of HSS Stud Connector-Experimental Study

Modified Push-out Tests for Determining Shear Strength and Stiffness of HSS Stud Connector-Experimental Study

State-of-the-art Studies on the FRP-confined Concrete

A Design-Oriented Combined Model (7 MPa to 190 MPa) for FRP-Confined Circular Short Columns

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