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A Numerical Study on the Static Strength of Tubular X-Joints With an Internal Ring Stiffener  

Ryu Yeon-Sun (부경대학교 해양공학과)
Cho Hyun-Man (삼성물산 건설부분)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.18, no.3, 2005 , pp. 265-275 More about this Journal
Abstract
The objective of this paper is to numerically assess the behavior of tubular X-joints with an internal ing stiffener, and to evaluate the reinforcement effect of a ring stiffener, and to establish the strength formulae. Nonlinear finite element analysis is used to compute the static strength of axially loaded tubular joints. Numerical and experimental results are in good agreement for tubular X-joints. The chord lengths of simple and ring-stiffened X-joints are suggested to reduce chord end effect. And, internal ring stiffener is found to be efficient In improving static strength of tubular X-joints. Maximum strength ratios are calculated as $1.5\sim3.5$. Regression analyses are performed considering practical size of ring stiffener and strength estimation formulae for tubular X-joints with an internal ring stiffener are proposed.
Keywords
tubular X-joint; tubular member; static strength; finite element method; ring stiffener; reinforcement effect;
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1 Karamonos, S.A ., Romeniin, A ., War-denier, J. (2000) On the Fatigue Design of K-Joint Tubular Girders, International Journal of Offshore and Polar Engineering, 10(1), pp.50-56
2 Moffat, D. G., et. al.(1994) Strength of T and DT Tubular Joints in Offshore Structure, Rep. No. A/169, Univ. of Liverpool, Liverpool, UK
3 Togo, T. (1967) Experimental Study on Mechanical Behavior of Tubular Joints, Doctoral dissertation, Osaka University, Japan
4 김재동(1996) 해양구조물 원통형 연결부의 구조강도에 대한 실험적 연구, 박사학위논문, 충남대학교, p.210
5 조현만, 류연선(2002) X형 관이음부 강도에 대한 주부재길이 영향, 대한토목학회 학술발표회 발표집, 대한토목학회, pp.301-304
6 Kang, C. T., Moffat D. G ., Mistry, J.(1998) Strength of DT Tubular Joints with Brace and Chord Compression, Journal of Structural Engineering, ASCE, 124(7) No. 7, pp.775-783   DOI   ScienceOn
7 American Petroleum Institute(1993) Recommended Practice for Planning, Designing and Constructing Fixed Offshore Platforms, APIRP2A
8 Marshall, P. W.(1992) Design of Welded Tubular Connections, Basis and Use of AWS Code Provision, Elsevier Science Publishers
9 Vegte , G. J.(995) Static Strength of Uniplanar and Multiplanar Tubular T-and Xrjoints, Doctoral dissertation, Delft Univ. of Technology, The Netherlands, p.378
10 Packer, J. A ., Henderson, J. E.(1997) Hollow Structural Section Connections and Trussest A Design Guide), Canadian Institute of Steel Construction, Toronto, Canada
11 Thandavamoorthv , T. S ., et al.(1999) Behavior of Internally Ring-stiffened Joints of Offshore Platforms, Journal of Structural Engineering, ASCE, 125(1), pp.1348-1352   DOI
12 ANSYS(2002) ANSYS-User Manual, Swanson Analysis System Inc., Houston, USA
13 Cho, H. M., Ryu, Y. S. (2002) Effect of Internal Ring Stiffener on the Ultimate Strength of Tubular X-joints, Proceeding of the 2'nd International Conference on Advances in Structural Engineering and Mechanics, ASEM, pp.18
14 Rhee , H. C. (1992) Comparison of Finite element Stress Solutions of Multi-Plane Tubular Joint With and Without Ring and Longitudinal Stiffeners, OTC Paper 6942
15 조현만, 류연선, 김정태(2000) X형 관이음부의 보강방법에 따른 극한강도해석, 한국전산구조공학회 학술발표회 논문집, 한국전산구조공학회, pp.230-237
16 Architectural Institute of Japan(2002) Recommendation for the Design and Fabrication of Tubular Truss Structures in Steel(in Japanese), AIJ, Japan
17 조현만, 류연선(2002) 환보강 T형 관이음부의 강도산정식, 한국전산구조공학회 학술발표회 논문집, 한국전산구조공학회 15(2), pp.533-540