A Numerical Model to Evaluate Fire-Resistant Capacity of the Reinforced Concrete Members

Hwang, Jin-Wook; Ha, Sang-Hee; Lee, Yong-Hoon; Kim, Wha-Jung; Kwak, Hyo–Gyoung

doi:10.4334/jkci.2013.25.5.497

Cited by 4 publications

(1 citation statement)

References 28 publications

(10 reference statements)

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“…[20] The author's group developed LDSS with a chemical composition of Fe-18.28Cr-5.68Mn-2.38Mo-0.39W-0.30N-0.035C (in wt%). [11,24,25] In this Ni-free LDSS, the γ-phase was stabilized by Mn and N, and Mo and W were used to improve the corrosion resistance. [10,19,26] We have conducted systematic studies on this LDSS in terms of microstructures, mechanical properties, and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Lee

Park

et al. 2022

steel research int.

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The effects of grain refinement on the resistance to pitting corrosion and passive film properties of lean duplex stainless steel (Fe–18.28Cr–5.68Mn–2.38Mo–0.39W–0.30N–0.035C, wt%) are studied. For this purpose, the grain size of this alloy is adjusted to 3, 7, and 17 μm through an annealing process after cold rolling. The pitting corrosion resistance is evaluated through potentiodynamic polarization tests in aqueous solutions containing Cl−. The grain size reduction enhances the resistance to pitting corrosion of the alloy. Mott–Schottky analysis and X‐Ray photoelectron spectroscopy analysis on the passive films show that, as the grain size decreases, the density of point defects of the film decreases, the film thickness increases, and the cation fraction of Cr of the film increases. The improved resistance to pitting corrosion by grain refinement is attributed to the formation of the thick and dense passive film with a high Cr content.

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Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Lee

Park

et al. 2022

steel research int.

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Clarification of the Thermal Properties of Intumescent Paint and Suggestion of the Required Fire Protection Thickness for Steel and Composite columns

Kim

Ok²,

Choi³

2015

J. Korean Soc. Adv. Comp. Struc.

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A Numerical Model of Reinforced Concrete Members Exposed to Fire and After-Cooling Analysis

Hwang¹,

Kwak²

2015

jcoseik

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This paper introduces a numerical analysis method for reinforced-concrete(RC) members exposed to fire and proposes considerations in designing RC structures on the basis of the comparison between numerical results and design codes. The proposed analysis method consists of two procedures of the transient heat transfer analysis and the non-linear structural analysis. To exactly evaluate the structural behavior under fire, two material models are considered in this paper. One is "Under-Fire" condition for the material properties at the high temperature and the other one is "After-Cooling" condition for the material properties after cooling down to air temperature. The proposed method is validated through the correlation study between experimental data and numerical results. In advance, the obtained results show that the material properties which are fittable to the corresponding temperature must be taken into account for an accurate prediction of the ultimate resisting capacity of RC members. Finally, comparison of the numerical results with the design code of EN1992-1-2 also shows that the design code needs to be revised to reserve the safety of the fire-damaged structural member.

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A Numerical Model to Evaluate Fire-Resistant Capacity of the Reinforced Concrete Members

Abstract: ‫قۦ‪জ‬‬ ՜Ԝʽ ߏŖࡓν࣡ ‫ۆۦ‪ҙ‬‬ ս࠘Ͽʝ ф ǴজՁɠ३Ե ኤ‫ˬ‬ 1) ᱦG ᆓ␌Ꭷ 2) ᱦG ίˤጃ 3) ᱦG ᆋՌ 4) ᱦG ၈ዣဈ 5)-4,

Cited by 4 publications

References 28 publications

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Clarification of the Thermal Properties of Intumescent Paint and Suggestion of the Required Fire Protection Thickness for Steel and Composite columns

A Numerical Model of Reinforced Concrete Members Exposed to Fire and After-Cooling Analysis

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