• Title/Summary/Keyword: EC 합성보강

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A Study on the Fire Resistance of yLRC Composite Columns with Steel Sheet Forms and Angles (강재 영구거푸집을 사용한 yLRC 합성기둥의 내화성능 연구)

  • Kim, Bo Ram;Kang, Seong Deok;Kim, Hyung Geun;Kim, Myeong Han;Kim, Sang Dae
    • Journal of Korean Society of Steel Construction
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    • v.20 no.3
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    • pp.365-375
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    • 2008
  • The main objective of this paper is to study the behaviour of yLRC composite columns at elevated temperatures by experimental test. The effects of load ratios, cross-section size and fire protection for the yLRC columns were investigate d by the test and compared using the heat transfer analysis perfo rmed based on the finite element program ANSYS 10.0 using the ISO834 standard fire curve, following the main guidelines proposed by the EC4 Part 1.2. As heat transfer is the movement of heat by conduction, convection, and radiation, and as temperature inside an object varies by position and time, time. As the steel's thermal conductivity is higher than that of concrete, steel loses its strength rapidly in a high-temperature situation such as a fire. Fire resistance performance of the yLRC composite column under fire conditions was evaluated througheat transfer analysis for parametric study.

An analytical study on corrugated steel plate lining in cut-and-cover tunnel (개착식 터널에서 파형강판 라이닝 적용을 위한 해석적 연구)

  • Kim, Jung-Ho;Chung, Hyung-Sik
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.6 no.1
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    • pp.3-16
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    • 2004
  • A finite element method is used for the force analysis of semicircular arch shaped corrugated steel plate lining. The assessment of stability and behavior for several conditions are executed from the analysis of soil-structure interaction in accordance with CHBDC (Canadian Highway Bridge Design Code, 2000). One fortieth scaled model tests were conducted on the semicircular arch lining to verify the FEM analysis results under the earth-load conditions.

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