• Title, Summary, Keyword: 가셋트-강관접합부

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A Study on Eccentric Joint of K-type Gusset-Tube Connection (K형 가셋트-강관 접합부의 편심접합에 관한 연구)

  • Kim, Woo Bum;Kim, Kap Sun;Chung, Soo Young
    • Journal of Korean Society of Steel Construction
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    • v.13 no.1
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    • pp.81-89
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    • 2001
  • Experiments and the parametric based on finite element model were conducted to investigate the behavior and strength of a gussettube connection concerned with eccentricity and selenderness ratio. Because of limitations in loading capacity the specimens were fabricated with 1/3 scale of full size. Of primary interest here are the ultimate strength of connections having eccentricity caused by lateral loads. As a result the effect of eccentricity on the buckling strength was examined and the validity of the finite element model adopted in this study was verified through comparing with test results.

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An Study on the Stiffened Effect of K-type Tubular Connection (강관 K형 접합부의 보강효과에 관한 연구)

  • Kim, Woo Bum;Lee, Young Jung;Kim, Kap Sun;Chung, Soo Young
    • Journal of Korean Society of Steel Construction
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    • v.13 no.6
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    • pp.609-619
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    • 2001
  • It is almost impossible to evaluate the ultimate strength theoretically, because the behavior of Gusset-Tube connection stiffened with rib-plate is considerably complicate. Therefore in this study a finite element model of gusset-tube connection stiffened with rib-plate was established. The validity of finite element analysis was examined through comparing with previous experimental result and the behavior and strength of the connection was examined. From the parametric study considering lateral force ratio, eccentricity, gusset length based on finite element model, the stiffened effect was estimated and stiffening method was proposed.

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A Study on the Ultimate Strength of Tube-Gusset Connection Considering Eccentricity (편심이 고려된 강관-가셋트 접합부의 극한 내력)

  • Kim, Woo Bum
    • Journal of Korean Society of Steel Construction
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    • v.13 no.2
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    • pp.201-210
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    • 2001
  • A numerical analysis and experimental study were performed to investigate the behavior and strength of tube-gusset connection subjected to axial and lateral forces. To investigate the behavior of the connections, experiment was conducted by applying three directional loads. Local buckling and local plastic bending deformation of the connection were observed from the test. Analytical results were compared with test results for the limited cases. Primary interests here are the effect of eccentricity on the strength of the connection. To suggest a formula for the strength of tube-gusset connection, lateral forces were replaced with equivalent wall moment and eccenrtric vertical component force of lateral force. Ultimate strength formula for the each force was proposed. Finally, nondimensionalized ultimate strength interaction relationships between the wall moment of tube($M_w$), vertical axial force($P_v$), and eccentric vertical component of lateral force($P_e$) were formulated through parametric study.

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Study on the Ultimate Strength of Gusset Plate-Circular Hollow Section(CHS) Joint Stiffened with Rib-plate by End Restraint (단부 구속을 받는 리브 보강 플레이트 원형강관 X형 접합부의 극한내력 도출에 관한 연구)

  • Kim, Woo-Bum;Park, Hyun-Ho
    • Journal of Korean Society of Steel Construction
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    • v.24 no.4
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    • pp.383-398
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    • 2012
  • A finite element analysis study was performed to investigate the behavior and strength of a Plate-Circular Hollow Section joint stiffened with Rib-plate, Since The strength of plate-Circular Section joint is reduced by joint of stress and local plastic deformation which is caused by wall moment, rib plates are attached to the upper and lower Plate-Circular Hollow Section joint for redistribution of stress. The behaviors of joints stiffened with Rib-plate according to shape of rib and reinforcing method, etc are different from those of joints which is not stiffened. However, the criterion of hollow structural section was limited on some parts. Therefore, this study intends to investigate the behavior and structural capacity of Plate-Circular Hollow Section joints stiffened with Rib-plate and compare the Finite element analysis with the Design Equation. Finally, this study proposes the reasonable ultimate strength formula through the comparisons with other design guide.