The effect of elevated temperatures on the compressive section capacity of pultruded GFRP profiles

Khaneghahi, Mohammad Houshmand; Najafabadi, Esmaeil Pournamazian; Bazli, Milad; Oskouei, Asghar Vatani; Zhao, Xiao Ling

doi:10.1016/j.conbuildmat.2020.118725

Cited by 34 publications

(16 citation statements)

References 36 publications

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“…For the selection of GFRP specimens, the variables investigated were (i) the composition of matrix; polyester or phenolic resins [ 28 ] and (ii) the effect of elevated temperatures [ 29 ]. A total of 40 pultruded GFRP bars manufactured in accordance with BS EN 13706-1:2002 [ 30 ] and measuring 150 mm × 20 mm× 5 mm were tested as per Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Material Selection and Characterization for a Novel Frame-Integrated Curtain Wall

Gargallo

Cordero²,

García-Santos

2021

Materials

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Curtain walls are the façade of choice in high-rise buildings and an indispensable element of architecture for a contemporary city. In conventional curtain walls, the glass panels are simply supported by the metal framing which transfers any imposed load to the building structure. The absence of composite action between glass and metal results in deep frames, protruding to the inside, occupying valuable space and causing visual disruption. In response to the limited performance of conventional systems, an innovative frame-integrated unitized curtain wall is proposed to reduce structural depth to one fifth (80%) allowing an inside flush finish and gaining nettable space. The novel curtain wall is achieved by bonding a pultruded glass fiber reinforced polymer (GFRP) frame to the glass producing a composite insulated glass unit (IGU). This paper selects the candidate frame and adhesive materials performing mechanical tests on GFRP pultrusions to characterize strength and elasticity and on GFRP-glass connections to identify failure module and strength. The material test results are used in a computer-based numerical model of a GFRP-glass composite unitized panel to predict the structural performance when subjected to realistic wind loads. The results confirm the reduction to one fifth is possible since the allowable deflections are within limits. It also indicates that the GFRP areas adjacent to the support might require reinforcing to reduce shear stresses.

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Section: Methodsmentioning

confidence: 99%

Material Selection and Characterization for a Novel Frame-Integrated Curtain Wall

Gargallo

Cordero²,

García-Santos

2021

Materials

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“…Owing to excellent anti-corrosion behavior, high durability, as well as high strength-to-weight ratio, FRP has been increasingly utilized in the field of civil engineering [32,[67][68][69][70][71][72]. FRP-strengthened concrete piles and columns are able to decrease the cost remarkably compared to concrete piles and columns reinforced by steel, particularly in harsh marine environments [36,[73][74][75][76].…”

Section: Concrete-filled Frp Tubesmentioning

confidence: 99%

Concrete filled FRP–PVC tubular columns used in the construction sector: A review

Bazli

Rahmani

et al. 2020

jcc

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“…Glassman et al [14] investigated the mechanical properties of steel A588 at temperature coming up to 815 • C by taking into consideration Young's modulus, yield stress, fracture toughness, ultimate stress and surface hardness. Khaneghahi et al [15] investigated the behavior of glass fiber reinforced polymer (GFRP) profiles compressed at higher temperature. Jo et al [16] examined the buckling of compressed plate structure at high temperature.…”

Section: Introductionmentioning

confidence: 99%

Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

2021

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The paper deals with numerical and experimental investigations of the channel section column subjected to heating and compression at elevated temperature. The analyzed columns were made of titanium alloy (Grade 2) and simply supported on both ends. The research procedure involved initial compression of the column (i), heating the preloaded column (ii) and compression of the column at elevated temperature to failure (iii). The tests were performed at temperatures from 23 °C to 300 °C. Numerical calculations were carried out in the Ansys® software and involved the application of bilinear and multilinear isotropic hardening. It has been revealed that the temperature increase in a statically indeterminate system causes a decrease in the load-carrying capacity of the profile. An increase in temperature by 27 °C causes a reduction of the load-carrying capacity by 10%, while compression at temperature 300 °C reduces the nominal load-carrying capacity of the profile by half. Most of the proposed numerical procedures allowed for accurate estimation of reaction forces during heating and maximum compressive forces recorded during compression at elevated temperatures. The correctness of the determined material characteristics and the suitability of shell models for estimation of the response of a thin-walled structure subjected to thermomechanical loading was confirmed.

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The effect of elevated temperatures on the compressive section capacity of pultruded GFRP profiles

Cited by 34 publications

References 36 publications

Material Selection and Characterization for a Novel Frame-Integrated Curtain Wall

Material Selection and Characterization for a Novel Frame-Integrated Curtain Wall

Concrete filled FRP–PVC tubular columns used in the construction sector: A review

Heating and Compression at Elevated Temperature of Thin-Walled Titanium Channel Section Columns

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