Browse > Article

A Study on the Equations for Load Carrying Capacities of Concrete Filled tubular Square Column-to-Beam Connections with Combined Cross Diaphragm and Sleeves  

Choi, Sung Mo (서울시립대학교 건축공학과)
Jung, Do Sub (서울시립대학교 건축공학과)
Kim, Dae Joong (삼성물산 건설부문)
Kim, Jin Ho (포항산업과학연구원 강구조연구소)
Publication Information
Journal of Korean Society of Steel Construction / v.17, no.4, 2005 , pp. 419-429 More about this Journal
Abstract
The objective of this study is to clarify the structural features of members consisting of a connection, as part of the previous study on the CFT column-to-beam tensile connection with a combined cross diaphragm. This connection has the following merits: it evenly distributes the stress on the beam flange and the diaphragm and reduces the stress concentration by improving the stress transfer route and restraining the abrupt deformation of the diaphragm. Finite element analysis was performed to find out the stress transfer through the sleeve, which is an important member of the connection with a combined cross diaphragm. The length and thickness of the sleeve were used as variables for the analysis. The analysis results showed that the length and thickness of the sleeve did not influence the capacity of the connection and played the role of a medium for the transfer of the stress from the diaphragm to the filled concrete. It was proposed that the appropriate length of the sleeve have the same value as the diameter of the sleeve and that the appropriate ratio of the sleeve diameter to the sleeve thickness be 20. Two equations for the evaluation of the load carrying the capacity of the connection were also proposed through the modification of the evaluation equation suggested in the previous study.
Keywords
Concrete Filled steel Tube; Combined Cross Diaphragm; Sleeve; FEM; Ansys;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Atorod Azizinamini, Stephen P.Schneider (2004), Moment Connections to Circular Concrete- Filled Steel Tube Columns, Journal of Structural Engineering, ASCE, Vol. 130, No. 2
2 대한건축학회(1998), 강관구조 설계기준 및 해설
3 日本鋼構造協會(1996) 鋼構造の柱梁接合部の設計施工-兵庫 縣南部地震の被害を踏えて-
4 日本建築學會(1997), コンクリ-ト鋼管構造設計施工指針
5 최성모, 홍성덕, 김요숙, 김진호(2004), 복합십자형 다이아 프램으로 보강한 각형 CFT 기둥-보 인장측 접합부의 구조성능에 관한 연구, 대한건축학회 논문집(구조계), v.20 n.1
6 S.M. Choi, S.D. Hong, D.G. Kim, Y.S. Kim, J.H. Kim(2004), Structural Capacities of Tension Side for CFT Square Column-to-Beam Connections with Combined Cross Diaphragm, PSSC, 24-27, Mar., 2004
7 대한건축학회(2004), 콘크리트충전 강관구조 설계 및 시공 매뉴얼
8 T. C. Fung, C. K. Sho, T. K. Chan and Erni (2002), Stress Concentration Factors of Doubler Plate Reinforced Tubular T Joints, Journal of Structural Engineering, ASCE, Vol. 128, No. 11, pp. 1399-1412   DOI   ScienceOn
9 Davide, G., Pracker., Predicting the strength of branch plate-RHS connections for punching shear, Canadian Journal of Civil Engineering, Vol. 9, No. 3, pp. 458-467   DOI   ScienceOn
10 Gustavo Parra-Montesinos, James K. Wight (2001), Modeling Shear Behavior of Hybrid RCS Beam -Column Connections, Journal of Structural Engineering, ASCE, Vol. 127, No. 3
11 ANSYS Inc(2001), ANSYS Release 6.0-user's manual
12 최성모, 윤여상, 김요숙, 김진호(2004). 복합십자형으로 보 강한 콘크리트충전 각형기둥-보 접합부의 내진성능에 관한 실험적 연구. 대한건축학회논문집(구조계):v.20 n.1(2004-01)