• Title/Summary/Keyword: 파형강판 합성단면

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Verification on the Axial and Flexural Plastic Resistance Analysis of Unconfined Corrugate Steel Sheet and Concrete Composite Section (비구속 파형강판 합성단면의 압축 및 휨 소성해석방법에 관한 분석)

  • Oh, Hongseob
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.26 no.3
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    • pp.1-10
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    • 2022
  • For the composite section of corrugated steel sheet and concrete, which is often used in soil structures, a conservative design method based on the ultimate strength state is still applied due to the difficulty of the analysis of compatibility condition. In this study, plastic analysis was performed on the flexural and axial strength of the composite section using two limit state design methods, LRFD and LSD. As a result of the analysis of the experimental results, the LRFD analysis value was interpreted as a conservative results for compressive strength, and it was analyzed that the effect of the concrete compressive strength was greater than the steel ratio of the steel plate. The flexural strength was analyzed to be in good agreement with the experimental results by the LSD analysis. From the parametric analysis on the design variables, the hogging moment, which is affected by the tensile strength of the steel plate, slightly decreased the increasing rate of the strength due to the influence of the bolts connection, but the sagging moment linearly increased according to the increment of steel reinforcement ratio.

An Experimental Study on Strength for the bolt connections of Composite using Deep Corrugated Strugated Plate (강합성 빔 보강 브릿지 플레이트의 이음부 보강에 따른 강도 평가에 대한 실험적 연구)

  • Oh, Hong-Seob;Jun, Beong-Gun;Lee, Ju-Won;Park, Sung-Rak
    • Proceedings of the Korea Concrete Institute Conference
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    • 2010.05a
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    • pp.93-94
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    • 2010
  • The purpose of this research is to evaluate the strength of the connections deep corrugated strugated plate. As the result a composite using Deep Corrugated Strugated Plate is have doubled improved compressive strength. Used 10,000KN and 5,000KN UTM to experiment.

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An Experimental Study on Flexural Strength of Deep Corrugated Steel Plate Composite Members by Steel Grade and Reinforcement Method (강종 및 보강방법에 따른 대골형 파형강판 합성부재의 휨성능에 관한 실험적 연구)

  • Kim, Yongjae;Oh, Hongseob
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.21 no.2
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    • pp.1-12
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    • 2017
  • In this study, It was purpose to provide preliminary data for extension of the applicability of deep corrugated steel plate composite members by steel grade and shear reinforcement method. From the result of flexural test on deep corrugated plates composite members using GR40 and SS590, positive moment capacity was increased about 28% by SS590 steel. But to change steel grade was proved to have insignificant effects for increasement of negative moment capacity. In the moment test result of same overlapping length, Increasement rate of positive and negative moment capacity was not significantly improved by increasing the number of bolt. It was estimated to be due to the characteristics of bolt connection such as distance between centers of bolts, edge distance of bolt. In the test result on the spacing of shear reinforcement, positive moment capacity was increased and deformation of negative moment was reduced as the distance decrease. In the test result on the shape of shear reinforcement, positive and negative moment resistance was increased about 2% ~ 7% by U shaped shear reinforcement. In conclusion It was estimated that moment capacity of deep corrugated steel plate composite members are depend on steel grade of deep corrugated steel plate, spacing of shear reinforcement and reinforcing bar.

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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Performance Evaluation of Encased-Concrete Bridge Plate(Deep Corrugated Steel Plate) Member (콘크리트 충전 브릿지 플레이트(대골형 파형강판) 부재의 성능평가)

  • Sim, Jong-Sung;Park, Cheol-Woo;Kim, Tae-Soo;Lee, Hyoung-Ho;Kang, Tae-Sung
    • Journal of the Korea Concrete Institute
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    • v.22 no.3
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    • pp.297-303
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    • 2010
  • The current encased-concrete deep corrugated steel plate has an arch type plate structure, which is a compressive strength-dominant structure that has a small moment due to its arch shape. Therefore, it increases the strength against compression by adding reinforcements to make concrete-filling spaces for increasing the compressive strength and forming cross sections that contain reinforced concrete. In this study, the safety factor of the new-concept encased-concrete bridge plate member was evaluated by comparing the compressive strength obtained from the compressive tests, flexural tests and the design compressive strength determined by using the Canadian Highway Bridge Design Code (CHBDC, 2003), which is a design standard for the encased-concrete bridge plate structures. The results of the safety factor evaluation using the design compressive strength and the test results showed that the safety factor was well above the appropriate value 2.0, which could be adjudged very conservative. If the safety factor based on this study results is considered and applied to the design, economical construction will be possible due to the reduced cross section and construction cost.

Structural Analysis of CBS (Composite Basement Wall System)-RIB Underground Structures Using Numerical Modeling (수치해석을 통한 강합성 빔보강 지하 구조물의 거동분석)

  • Yoo, Han-Kyu;Kim, Yeon-Sung
    • Journal of the Korean Geotechnical Society
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    • v.26 no.6
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    • pp.39-44
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    • 2010
  • In case of the design method, which is used in the inside and outside of the country, on corrugated multi plate structures, section modulus would be determined by assuming 2-dementioanl equivalent section of those structures. However, it is impossible to consider 3-dimentional effects when 2-dimentional design method is applied since structures are reinforced with a pattern of the 1200, 1600 mm reinforcements except the 800 mm reinforcement. Thus, in this study, technical specification standard is analyzed for the existing corrugated multi plate design methods, and section strengths, moments, and so on of equivalent and practical sections are compared and estimated using 3-dimentional FEM (finite element method) for semicircles and architectural features widely used. Based on the results of that analysis, analytical basis for 3-dimentional design of the CBS-RIB is suggested.