• Title/Summary/Keyword: Rectangular steel tube column-to-H beam connection

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Structural Performance Evaluation of Seismic Wide-flanged Beam-to-Rectangular Steel Tube Column Connection Details (내진 각형강관 기둥-H형강 보 접합상세의 구조성능평가)

  • Jang, Bo-Ra;Shim, Hyun-Ju;Kim, Yong-Ick;Chung, Jin-An;Oh, Young-Suk;Kim, Sang-Seup;Choi, Byong-Jeong;Lee, Eun-Taik
    • Journal of Korean Society of Steel Construction
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    • v.22 no.4
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    • pp.305-312
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    • 2010
  • The objective of this paper is to examine the structural performance of steel moment-resisting frames on the various connection details of Seismic Wide-flanged Beam-to-Rectangular Steel Tube Column connections. Although compared to an H-shaped steel tube, a rectangular steel tube has many advantages and is more efficient, its application is limited due to the lack of experience in using it and the connection details. Existing steel moment connections using the rectangular steel tube are mainly used through plate diaphragms. The processing of construction of the rectangular steel tube is so complicated that it is hard to apply it in the field. In this study, the structural performance and the earthquake capacity of the connection details that do not cut the rectangular steel tube column were investigated. A comparative analysis of the strength, rigidity, and energy absorption capacity of the welded connection details using an end-plate and a haunch was also performed.

Performance Evaluation of Connection of Seismic Rectangular Steel Tube Column-H Beam Using One-side Bolts (원사이드 볼트를 이용한 내진 각형강관 기둥-H형강 보 접합부의 구조성능평가)

  • Shim, Hyun-Ju;Jang, Bo-Ra;Chung, Jin-An;Lee, Eun-Taik
    • Journal of Korean Society of Steel Construction
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    • v.22 no.4
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    • pp.355-363
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    • 2010
  • The objective of this study is to examine the structural performance on the Rectangular Steel Tube Column-to-H Beam connections using one-side bolts and T-stub. Although a rectangular steel tube comparing with a H-shaped steel has many advantages and is more efficient, its application is limited due to the lack of experiences and connection details. Existing steel moment connections using the rectangular steel tube are mainly using through plate diaphragms. Its processing of construction is so complicated that it is hard to apply in the field. In this study, the structural performance and the earthquake capacity for T-stub connection with one-side bolts were investigated. And it is performed a comparative analysis of strength, rigidity, total rotation and energy absorption capacity for the various connection details.

Experimental Evaluation of New Seismic Connections between Rectangular Steel Tube Column and H-shaped Beam (각형강관 기둥-H형강 보 신형상 내진접합부의 실험적 평가)

  • Jin, Jooho;Kim, DooHwan;Kim, Hyunsook;Shin, Jinwon;Park, Kooyun;Lee, Kyungkoo
    • Journal of Korean Society of Steel Construction
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    • v.30 no.2
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    • pp.77-85
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    • 2018
  • A through diaphragm is often used to ensure their stiffness for moment-resisting connections using rectangular steel-tube column and H-shaped beam. The through-diaphragm connections, however, have some difficulties for their applicabilities to the field due to the complexity of the fabrication and construction processes. This study thus proposes a new modular system of steel structures assembled only using bolts without welding, by bringing a connection module composed of rectangular steel-tube column, H-shaped beam and oneway bolt onto the site. An experimental study to evaluate the seismic performance of the proposed connection details based on the new modular system is then conducted. The length and type of the inner reinforcement plate are considered as the primary design parameters, and the strength, stiffness, ductility and energy dissipation capability of the new connections are experimentally analyzed by comparison to those of conventional through diaphragm connections.

A Study on the Strength of H Beam-to-Rectangular Tube Column Connections with Exterior Diaphragms by Simplified Tension Test (단순 인장 실험에 의한 외부 스티프너를 갖는 각형 강관기둥과 H형강보 접합부의 최대내력에 대한 연구)

  • Park, Jong Won;Kang, Hae Kwan;Lee, Sang Hoon;Kim, Young Chan
    • Journal of Korean Society of Steel Construction
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    • v.10 no.1 s.34
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    • pp.25-35
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    • 1998
  • A moment connection of H beam-to-rectangular tube column with external stiffeners was proposed. A formula to predict the ultimate strength of the connection was derived based on the yield line mechanism. Experimental investigation was performed to determine the applicability of the connection type and the strength formula. The ultimate strengths computed by the formula agreed well with the experimental values.

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Structural Behavior of Beam-to-Column Connections of Rectangular CFT Structures having Different Diaphragm Opening (콘크리트충전 각형강관구조의 다이아프램 개구부 형상에 따른 기둥-보 접합부 구조적 거동)

  • Kim, Ki Hoon;Lee, Myung Jae
    • Journal of Korean Society of Steel Construction
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    • v.27 no.3
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    • pp.289-298
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    • 2015
  • The steel tube of Concrete-Filled Tube(CFT) confines the concrete and the concrete restrains the buckling of the tube, The objective of this study is to investigate the influences of the opening shape of the through diaphragm in case of the rectangular CFT column-to-beam connection through the structural experiment. The experiment results are compared with analysis results obtained by using the FEM program. These results are shown that strength of the rectangular CFT column-to-beam connection have similar structural performance regardless of the opening shape if opening areas of the through diaphragm are same. Also in case the connection area/shape of the through diaphragm and the flange of H-beam are similar, it was ascertained that the bending stress occurred at the beam can be transferred to the column through the diaphragm.