• Title, Summary, Keyword: 복수강도 곡선

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A Study on the Strength of Concrete Filled Tubular Columns according to Data-Base (Data Base에 의한 CFT 기둥의 내력에 관한 연구)

  • Seo, Jeong-Hwan;Yang, Young-Sung
    • Journal of Korean Society of Steel Construction
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    • v.13 no.1
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    • pp.71-79
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    • 2001
  • The concrete filled tubular(CFT) columns have many excellent structural properites. such as high compressive strength high ductility and high absorption capacity However the confinement effect and limiting width-thickness ratio of CFT column have not yet been clarified. Therefore. this paper aims to clarify the confinement effect of steel tubes and strength of concrete filled steel tubular columns. And this paper presents results of a probabilistic analysis based on statistical data for strength of concrete filled steel tubular columns which has been tested in Korea for recent 10 years(1991.1~2000.6).

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A Study on the Buckling Strength of Centrally Compressed Stainless Steel Tubular Columns (중심압축하중을 받는 스테인리스 강관 기둥의 좌굴내력에 관한 연구)

  • Jang, Ho Ju;Yang, Young Sung
    • Journal of Korean Society of Steel Construction
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    • v.17 no.2
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    • pp.207-216
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    • 2005
  • The maximum strength of the stainless steel square and the circular hollow section columns, which are cold-formed and TIG welded, is experimented on and analyzed. The paper presents centrally compressed experiments, including stub column tests and coupon tests, on stainless steel pipe columns. A total of 24 stainless steel pipe column experiments are conducted, using the slenderness ratios ($L_k/r$ = 20, 30, 40, 50, 60, 70) as parameters. The experimental results were compared with the design standard curves, AIK-LSD and AISC-LRFD, AIJ-LSD, SIJ-ASD curves, and multiple column curves.

A Study on the Structural Property of Structural Steel Tubes under Axial Compression (중심압축력을 받는 일반구조용 강관의 구조성능에 관한 연구)

  • Kim, Jong Rak;Lee, Eun Taik;Lee, So Yeon;Baek, Ki Youl
    • Journal of Korean Society of Steel Construction
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    • v.20 no.3
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    • pp.437-444
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    • 2008
  • The use of imported structural steel tubes has been increased in domestic construction field because of its low price, but the mechanical properties of those steel tube are not verified exactly. This study includes coupon test and stub - column compression test on the structural steel tube. The compression test of stub - column was performed to characterize and quantify the material characteristic and strength of column compatibility, in which we compared the experiment formula and the abstract formula by the application of the LRFD standard formula and multiple column curve.

A Study on the Compression Strength of Structural Steel Tube Applied in Spatial Structure (공간구조에 적용되는 일반구조용 강관의 압축내력에 관한 연구)

  • Baek, Ki-Youl
    • Journal of Korean Association for Spatial Structures
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    • v.8 no.5
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    • pp.83-93
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    • 2008
  • Space truss is a rational system which forming large span in spatial structure and the steel tube is used well as a structure member in truss system. This study includes coupon test and Stub-column compression test on the structural steel tube. The compression test of Stub-column was performed to characterize and quantify the material characteristic and strength of column. In this study, we also researched the matter of compatibility, in which we compared the experiment formula and the abstract formula by the application of the LSD standard formula, SSRC and ECCS multiple column curve.

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