Experimental Study and Theoretical Analysis of Ultimate Strength for Steel Tubular Joint of UHV Transmission Towers

Abstract:

Both experimental research and theoretical analysis of ultimate strength for steel tubular tower joint are developed. The experimental data comprise four different specifications of steel tube, that is, without ribbed plate, with 1/4 annular ribbed plate, with 1/2 annular ribbed plate and with annular ribbed plate. This paper considers that the ultimate strength of steel tubular joint depend on the following four parameters, that is, the ratio of length of joint plate to outer diameter of steel tube B/D, outer diameter D, axial force and ratio of length of annular plate to outer diameter of steel tube R / D as well as the ratio of thickness of annular plate to thickness of steel tube. Furthermore, a recommended formula of the ultimate strength of steel tubular joint is derived by the potential energy principle and the principle of virtual work in elasticity and plasticity based on the failure modes of experimental specimens. It is demonstrated that the applicability of the recommended formula is better.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 84-100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.84
• Online since: September 2014
• Authors: An Liang Jiao, Zheng Liang Li, Hong Jun Liu
• Keywords: Power Transmission Tower, Ribbed Plate, Steel Tubular Joint, Ultimate Strength, Virtual Work Principle

References

[1] Electricity transmitting steel tubular tower manufacture norm[M], The Japanese steel tubular association, 1985, 6.

[2] Saeko S. Experimental study on strength of tubular steel structures[J]. Journal of Society of steel construction, 1974, 10(112): 37―68.

[3] Recommendations for the design and fabrication of tubular structures in steel[S]. Architectural Institute of Japan, (1990).

[4] Packer J A, Henderson J E. Design guide for hollow structural section connections[S]. Canadian: Canadian Institute of Steel Construction, (1992).

[5] Soh C K, Chan T K, Yu S K. Limit analysis of ultimate strength of tubular X-Joints[J]. Journal of Structural Engineering, ASCE, 2000, 126(7): 790―797.

DOI: 10.1061/(asce)0733-9445(2000)126:7(790)

[6] Wang B, Hu N, Kurobane Y. Damage criterion and safety assessment approach to tubular joints[J]. Engineering Structure, Elsevier2000, 22(5): 424―434.

DOI: 10.1016/s0141-0296(98)00134-5

[7] Kim Woo-Bum. Ultimate strength of tube-gusset plate connections considering eccentricity[J]. Engineering Structures , Elsevier2001, 23(11): 1418―1426.

DOI: 10.1016/s0141-0296(01)00050-5

[8] Lie S T, Lee C K, Wong S M. Modeling and mesh generation of weld profile in tubular Y-joint[J]. Journal of Constructional Steel Research, Elsevier, 2001, 57(5): 547―567.

DOI: 10.1016/s0143-974x(00)00031-6

[9] T.C. Fung, C.K. Soh, W.M. Gho, Ultimate capacity of completely overlapped tubular joints. II: Behavioural study[J], Journal of Constructional Steel Research 57 (2001) 881–906, (2000).

DOI: 10.1016/s0143-974x(01)00014-1

[10] S.P. Chiew, C.K. Soh, T.C. Fung, A.K. Soh, Numerical study of multiplanar tubular DX-joints subject to axial loads[J], Computers and Structures 72 (1999) 749-761, (1998).

DOI: 10.1016/s0045-7949(98)00217-x

[11] T.C. Fung , C.K. Soh, W.M. Gho, F. Qin, Ultimate capacity of completely overlapped tubular joints I. An experimental investigation[J], Journal of Constructional Steel Research 57 (2001) 855–880.

DOI: 10.1016/s0143-974x(01)00013-x

[12] Yiyi Chen, Zuyan, Zhan Shen. Three lines limit-analysis model for chs K-joints and its verificationby tests[J]. China Civil Engineering Journal, 1999, 32(6): 26―31. (In Chinese).

[13] Shice Yu, Bingnan Sun, Yin Ye. Experimental study and theoretical analysis of ultimate strength for steel tubular joint of tall towers[J]. Engineering Mechanics, 2004, 21(3): 155―161. (In Chinese).

[14] Elchalakani M, Zhao X L, Grzebieta R H. Plastic mechanism analysis of circular tubes under pure bending[J]. International Journal of Mechanical Sciences, Elsevier, 2002, 44(6): 1117―1143.

DOI: 10.1016/s0020-7403(02)00017-6

[15] Zeinoddini M, Harding J E, Parke G A R. Contribution of ring resistance in the behavior of steel tubes subjected to a lateral impact[J]. International Journal of Mechanical Sciences, Elsevier, 2000, 42(12): 2303―2320.

DOI: 10.1016/s0020-7403(99)00099-5

[16] Suh M S. Plastic analysis of dented tubes subjected to combined loading[D]. Massachusetts: Massachusetts Institute of Technonlogy, (1987).

[17] Wierzbicki T, Suh M S. Indentation of tubes under combined loading[J]. International Journal of Mechanical Sciences, Elsevier, 1988, 30(3-4): 229―248.

DOI: 10.1016/0020-7403(88)90057-4