Issue 45

D. Yang et alii, Frattura ed Integrità Strutturale, 45 (2018) 45-52; DOI: 10.3221/IGF-ESIS.45.04 52 A CKNOWLEDGMENTS he authors wish to thank the Natural Science Foundation of China for financially supporting the research in the paper through the grant NO.51478334 and Henan Science and Technology Department supporting the research in the paper through the grant NO.122102210087 and NO.182102310918. R EFERENCES [1] Han, L. H. and Yang, Y. F. (2007). Modern technology of concrete-filled steel tubular structures, 2nd ed. Beijing, PR China: China Architecture & Building Press. [2] Han, L. H., Li, W. and Bjorhovde, R. (2014). Developments and advanced applications of concrete-filled steel tubular (CFST) structures: Members, Journal of Constructional Steel Research, 100, pp. 211-228. [3] Wingerde, A. M. V., Packer, J. A. and Wardenier, J. (1995). Criteria for the Fatigue Assessment of Hollow Structural Section Connections, Journal of Constructional Steel Research, 35, pp. 71-115. [4] Recommended practice for fatigue strength analysis of offshore steel structures, DNV RP-C203, (2001). [5] Zhao X. L., Herion, S. and Packer, J. A. (2001). Design Guide for Circular and Rectangular Hollow Section Welded Joints under Fatigue Loading, CIDECT and TUV-Verlag, German. [6] Hobbacher, A. F. (2008). Recommendations for Fatigue Design of Welding Joints and Components, International Institute of Welding, doc. XIII-2151-07/XV-1254-07. [7] AWS D1.1-2008. Structure Welding Code-Steel, the American National Standards Institute, American Welding Society, (2008). [8] Packer, J. A., Mashiri, F. R., Zhao, X. L. and Willibald, S. (2007). Static and fatigue design of CHS-to-RHS welded connections using a branch conversion method, Journal of Constructional Steel Research, 63, pp. 82-95. [9] Mashiri, F. R. and Zhao, X. L. (2010). Square hollow section (SHS) T-joints with concrete-filled chords subjected to in-plane fatigue loading in the brace, Thin-Walled Structures, 48, pp. 150-158. [10] Mashiri, F. R., Zhao, X. L. and Tong, L. W. (2013). Fatigue tests and design of thin CHS–SHS T-joints under cyclic in-plane bending, J Civil Struct Health Monit., 3, pp. 129-140. [11] Wang, K., Tong, L. W., Zhu, J., Zhao, X. L. and Mashiri, F. R. (2013). Fatigue Behavior of Welded T-Joints with a CHS Brace and CFCHS Chord under Axial Loading in the Brace, Journal of Bridge Engineering., 18, pp. 142-152. [12] Kim, I. G., Chung, C. H., Shim, C. S. and Kim, Y. J. (2014). Stress concentration factors of N-joints of concrete-filled tubes subjected to axial loads, Int J Steel Struct., 14, pp. 1-11. [13] Qian, X. D., Jitpairod, K., Marshall, P. and Swaddiwudhipong, S., Ou, Z. Y., Zhang, Y., Pradana, M. R. (2014). Fatigue and residual strength of concrete-filled tubular X-joints with full capacity welds, Journal of Constructional Steel Research, 100, pp. 21-35. [14] Tong, L. W., Xu, G. W., Liu, Y. Q., Yan, D. Q. and Zhao, X. L. (2015). Finite element analysis and formulae for stress concentration factors of diamond bird-beak SHS T-joints, Thin-Walled Structures, 86, pp. 108-120. [15] Tong, L. W., Xu, G. W., Yan, D. Q. and Zhao, X. L. (2016). Fatigue tests and design of diamond bird-beak SHS T- joints under axial loading in brace, Journal of Constructional Steel Research, 118, pp. 49-59. [16] Tong, L. W., Zheng, H. Z., Mashiri, F. R. and Zhao, X. L. (2013). Stress-Concentration Factors in Circular Hollow Section and Square Hollow Section T-Connections: Experiments, Finite-Element Analysis, and Formulas, Journal of Structural Engineering, 139, pp. 66-81. [17] Technical Specification for Structures with Steel Hollow Sections (CECS 280:2010), Beijing, China; China Plan Press., (2010). [18] Technical Specification for Welding of Steel Structure of Building (JGJ 81-2002), Beijing, China; China Construction Industry Press., (2002). [19] Code for Design of Steel Structures (GB 50017-2013), Beijing, China; China Standard Press., (2010). [20] SIMULIA. Abaqus 6.12. Analysis User’s Manual, (2013). [21] Tong, L. W., Yang, D. L. and Zhao, X. L. (2013). Experimental Study on Fatigue Behaviour of Welded CHS-to- Concrete Filled SHS T-joints. Journal of Variation and Shock, 2, pp. 99-105. T