Carbon-fibre composites for strengthening steel structures

Linghoff, Dag; Haghani, Reza; Al‐Emrani, Mohammad

doi:10.1016/j.tws.2008.10.019

Cited by 83 publications

(34 citation statements)

References 8 publications

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“…the soffit if a beam in positive bending is assumed, see Fig. 6) [37,54,57,[88][89][90][91][92][93][94][95][96][97]. The bonded FRP plate can enhance not only the ultimate load but also the stiffness of the beam (especially when a high modulus CFRP is used) [90,93,98,99]; the latter means that the strains in the beam are reduced under the same load and the first yielding of the beam is delayed.…”

Section: Flexural Strengthening Of Steel Beamsmentioning

confidence: 99%

“…A number of failure modes (Fig. 7) are possible for such FRP-plated steel beams, including: (a) in-plane bending failure [96]; (b) lateral buckling [37]; (c) plate-end debonding [41,97]; and (d) intermediate debonding due to local cracking or yielding away from the plate ends [37]. Additional failure modes include: (e) local buckling of the compression flange; and (f) local buckling of the web.…”

Section: Flexural Strengthening Of Steel Beamsmentioning

confidence: 99%

“…Many existing analytical studies [33,90,95,96,100,101] on FRP-plated steel beams adopted this simple assumption, which means that the prediction of debonding failures was beyond their scope. Nevertheless, research on debonding failures has attracted considerable attention worldwide (e.g.…”

Section: Flexural Strengthening Of Steel Beamsmentioning

confidence: 99%

See 2 more Smart Citations

Strengthening of steel structures with fiber-reinforced polymer composites

Teng

Fernando

2012

Journal of Constructional Steel Research

465

177

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Section: Flexural Strengthening Of Steel Beamsmentioning

confidence: 99%

Section: Flexural Strengthening Of Steel Beamsmentioning

confidence: 99%

See 1 more Smart Citation

Strengthening of steel structures with fiber-reinforced polymer composites

Teng

Fernando

2012

Journal of Constructional Steel Research

465

177

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“…Buildings of major importance, such as hospitals, facilities of fire brigades or crisis management centres are designed in accordance with the applicable standards [4]. Methods of strengthening these structures, mainly constructed of reinforced concrete or steel frame (for example using the fiber-reinforced cementitious composite [4]), are subjected to many tests, including experimental and numerical ones [5][6][7][8][9]. There are many methods of retrofitting masonry structures, including methods for strengthening cracked walls using high-strength composite materials and a rigid adhesive with low deformability [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dynamics of Wooden House Wall Panels with Different Thermal Isolation

2019

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Wood frame buildings are very popular in regions that are exposed to different dynamic excitations including earthquakes. Therefore, their seismic resistance is really important in order to prevent structural damages and human losses. The aim of the present paper is to show the results of experimental tests focused on the dynamic response of wall panels of a wooden frame building with thermal isolation made of mineral wool and polyurethane foam. Firstly, the static and the dynamic mechanical analysis (DMA) tests were conducted so as to determine the basic thermomechanical properties of the analyzed isolation materials. Then, the elements of the exterior walls with two types of thermal insulation were tested under harmonic excitation for different amplitudes of displacement. The results of the static material tests indicate that the polyurethane foam behaves in a highly nonlinear way both during compression and tension. Moreover, the results of the DMA tests show that the storage and loss modulus of the polyurethane foam are significantly larger in relation to the values obtained for the mineral wool. The results of the dynamic tests on wall panels show that the use of polyurethane foam as thermal isolation leads to a substantial increase in stiffness and damping properties, as compared to the case when the mineral wood is used.

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“…One of the earliest examples of the open steel section strengthening is the improvement of steel I-girders conducted by Mertz and Gillespie Jr [15] to enhance flexural characteristics. The double symmetrical I-sections beams were strengthened with different combinations of adhesive-CFRP laminates and loaded in four-point bending [16]. Colombi and Poggi [17] tested H-steel beams strengthened externally by one layer and two layers of CFRP strips using two different adhesives.…”

Section: Introductionmentioning

confidence: 99%

Utjecaji orijentacije slojeva CFRP traka na ojačanje šupljih čeličnih elemenata

2015

JCE

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This paper studies the effects of orientation of CFRP (carbon fibre reinforced polymer) strip layers on the improvement of bearing capacity of strengthened steel-made circular hollow elements. The four point bending test was conducted, and elements were subjected to bending until failure. The improvement of bearing capacity of strengthened tubular steel elements is presented in terms of failure load, stiffness, composite beam action, and modes of failure. Beams strengthened with CFRP strips with two longitudinal layers and one layer along the periphery performed better than the beams reinforced with one longitudinal layer and two layers along the periphery. Utjecaji orijentacije slojeva CFRP traka na ojačanje šupljih čeličnih elemenata U ovom se radu proučavaju utjecaji orijentacije slojeva CFRP traka (polimera ojačanih ugljičnim vlaknima) na poboljšanje nosivosti ojačanih čeličnih kružnih šupljih elemenata. Provedeno je ispitivanje savijanjem uz djelovanje sila u četiri točke, a elementi su opterećeni na savijanje do sloma. Poboljšanje nosivosti ojačanih cijevnih čeličnih elemenata analizirano je s obzirom na silu otkazivanja, krutost, kompozitno djelovanje i vrstu sloma. Nosači armirani CFRP trakama s dva uzdužna sloja i jednim po obodu pokazuju bolje ponašanje od nosača armiranih s jednim uzdužnim slojem i dva sloja po obodu.

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Carbon-fibre composites for strengthening steel structures

Cited by 83 publications

References 8 publications

Strengthening of steel structures with fiber-reinforced polymer composites

Strengthening of steel structures with fiber-reinforced polymer composites

Experimental Study on Dynamics of Wooden House Wall Panels with Different Thermal Isolation

Utjecaji orijentacije slojeva CFRP traka na ojačanje šupljih čeličnih elemenata

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