Net Section Fracture Assessment of Welded Rectangular Hollow Structural Sections
Rectangular Hollow Sections (RHS) because of their high resistance to tension, as well as compression, are commonly used as a bracing member with slotted gusset plate connections in steel structures. Since in this type of connection only part of the section contributes in transferring the tensile load to the gusset plate, shear lag failure may occur in the connection. The AISC specification decreases the effective section net area by a factor to consider the effect of shear lag for a limited connection configuration. This study investigates the effective parameters on the shear lag phenomenon for rectangular hollow section members connected at corners using a single concentric gusset plate. The results of the numerical analysis show that the connection length and connection eccentricity are the only effective parameters in the shear lag, and the effect of gusset plate thickness is negligible because of the symmetric connection. The ultimate tensile capacity of the suggested connection in this study were compared to the typical RHS connection presented in the AISC and the similar double angle sections connected at both legs. The comparison indicates that tensile performance of the suggested connection in this study because of its lower connection eccentricity is much higher than the typical slotted connection and double angle connections. Therefore, a new equation is suggested based on the finite element analyses to modify the AISC equation for these connections.
AISC Committee. "Specification for structural steel buildings (ANSI/AISC 360-16)." American Institute of Steel Construction, Chicago-Illinois (2016).
Munse, William H., and Eugene Chesson. "Riveted and bolted joints: net section design." Journal of the Structural Division 89, no. 1 (1963): 107-126.
Chesson, Eugene, and William H. Munse. "Riveted and bolted joints: Truss-type tensile connections." Journal of the Structural Division 89, no. 1 (1963): 67-106.
Fang, Cheng, Angus C.C. Lam, and Michael C.H. Yam. “Influence of Shear Lag on Ultimate Tensile Capacity of Angles and Tees.” Journal of Constructional Steel Research 84 (May 2013): 49–61. doi:10.1016/j.jcsr.2013.02.006.
Fang, Cheng, Angus C.C. Lam, Michael C.H. Yam, and K.S. Seak. “Block Shear Strength of Coped Beams with Single-Sided Bolted Connection.” Journal of Constructional Steel Research 86 (July 2013): 153–166. doi:10.1016/j.jcsr.2013.03.019.
Saidani, M. “Behaviour of Welded T-End Connection to Rectangular Hollow Section (RHS) in Axial Tension.” Journal of Constructional Steel Research 64, no. 4 (April 2008): 447–453. doi:10.1016/j.jcsr.2007.10.003.
Abedin, Mohammad, Shervin Maleki, Nafiseh Kiani, and Esmail Shahrokhinasab. “Shear Lag Effects in Angles Welded at Both Legs.” Advances in Civil Engineering 2019 (September 22, 2019): 1–10. doi:10.1155/2019/8041767.
Abedin, Mohammad, and Armin B. Mehrabi. “Effect of Cross-Frames on Load Distribution of Steel Bridges with Fractured Girder.” Infrastructures 5, no. 4 (April 1, 2020): 32. doi:10.3390/infrastructures5040032.
Soo Kim, Tae, and Hitoshi Kuwamura. “Finite Element Modeling of Bolted Connections in Thin-Walled Stainless Steel Plates Under Static Shear.” Thin-Walled Structures 45, no. 4 (April 2007): 407–421. doi:10.1016/j.tws.2007.03.006.
Salih, E.L., L. Gardner, and D.A. Nethercot. “Numerical Investigation of Net Section Failure in Stainless Steel Bolted Connections.” Journal of Constructional Steel Research 66, no. 12 (December 2010): 1455–1466. doi:10.1016/j.jcsr.2010.05.012.
Girão Coelho, Ana M., and Frans S.K. Bijlaard. “Experimental Behaviour of High Strength Steel End-Plate Connections.” Journal of Constructional Steel Research 63, no. 9 (September 2007): 1228–1240. doi:10.1016/j.jcsr.2006.11.010.
Može, Primož, and Darko Beg. “High Strength Steel Tension Splices with One or Two Bolts.” Journal of Constructional Steel Research 66, no. 8–9 (August 2010): 1000–1010. doi:10.1016/j.jcsr.2010.03.009.
Dusicka, Peter, and Gregory Lewis. “High Strength Steel Bolted Connections with Filler Plates.” Journal of Constructional Steel Research 66, no. 1 (January 2010): 75–84. doi:10.1016/j.jcsr.2009.07.017.
Ke, Ke, Y.H. Xiong, Michael C.H. Yam, Angus C.C. Lam, and K.F. Chung. “Shear Lag Effect on Ultimate Tensile Capacity of High Strength Steel Angles.” Journal of Constructional Steel Research 145 (June 2018): 300–314. doi:10.1016/j.jcsr.2018.02.015.
Goggins, J.M., B.M. Broderick, A.Y. Elghazouli, and A.S. Lucas. “Experimental Cyclic Response of Cold-Formed Hollow Steel Bracing Members.” Engineering Structures 27, no. 7 (June 2005): 977–989. doi:10.1016/j.engstruct.2004.11.017.
Hancock, GJ. “Cold-Formed Steel Structures: Research Review 2013–2014.” Advances in Structural Engineering 19, no. 3 (February 17, 2016): 393–408. doi:10.1177/1369433216630145.
Han, Sang-Wan, Wook Tae Kim, and Douglas A. Foutch. “Seismic Behavior of HSS Bracing Members According to Width–Thickness Ratio Under Symmetric Cyclic Loading.” Journal of Structural Engineering 133, no. 2 (February 2007): 264–273. doi:10.1061/(asce)0733-9445(2007)133:2(264).
Haddad, Madhar, Tom Brown, and Nigel Shrive. “Finite Element Modeling of Concentric HSS Braces under Cyclic Loading.” Canadian Journal of Civil Engineering 38, no. 5 (May 2011): 493–505. doi:10.1139/l11-022.
Haddad, Madhar, Tom Brown, and Nigel Shrive. “Experimental Cyclic Loading of Concentric HSS Braces.” Canadian Journal of Civil Engineering 38, no. 1 (January 2011): 110–123. doi:10.1139/l10-113.
Haddad, Madhar. “Concentric Tubular Steel Braces Subjected to Seismic Loading: Finite Element Modeling.” Journal of Constructional Steel Research 104 (January 2015): 155–166. doi:10.1016/j.jcsr.2014.10.013.
Dowswell, Bo, and Stacey Barber. “Shear Lag in Rectangular Hollow Structural Sections Tension Members: Comparison of Design Equations to Test Data.” Practice Periodical on Structural Design and Construction 10, no. 3 (August 2005): 195–199. doi:10.1061/(asce)1084-0680(2005)10:3(195).
Ling, T.W., X.L. Zhao, R. Al-Mahaidi, and J.A. Packer. “Investigation of Shear Lag Failure in Gusset-Plate Welded Structural Steel Hollow Section Connections.” Journal of Constructional Steel Research 63, no. 3 (March 2007): 293–304. doi:10.1016/j.jcsr.2006.05.006.
Zhao, X. L. "Finite element analysis of slotted end tubular connections." In Tubular Structures XI: 11th International Symposium and IIW International Conference on Tubular Structures, vol. 11, p. 237. CRC Press, 2006.
Korol, R. M. “Shear Lag in Slotted HSS Tension Members.” Canadian Journal of Civil Engineering 23, no. 6 (December 1, 1996): 1350–1354. doi:10.1139/l96-943.
Cheng, J J. Roger, G L Kulak, and Heng-Aik Khoo. “Strength of Slotted Tubular Tension Members.” Canadian Journal of Civil Engineering 25, no. 6 (December 1, 1998): 982–991. doi:10.1139/l98-025.
Willibald, S, J A Packer, and G Martinez-Saucedo. “Behaviour of Gusset Plate Connections to Ends of Round and Elliptical Hollow Structural Section Members.” Canadian Journal of Civil Engineering 33, no. 4 (April 1, 2006): 373–383. doi:10.1139/l05-052.
Willibald, S., J. A. Packer, G. Martinez Saucedo, and R. S. Puthli. "Shear lag in slotted gusset plate connections to tubes." In Proceedings of the ECCS/AISC Workshop, Connections in Steel Structures V: Innovative Steel Connections, pp. 3-5. 2004.
Packer, J.A. “Tubular Brace Member Connections in Braced Steel Frames.” Tubular Structures XI (October 2, 2017): 3–11. doi:10.1201/9780203734964-1.
Roquete, Lucas, Arlene Maria Cunha Sarmanho, Ana Amélia Oliveira Mazon, and João Alberto Venegas Requena. “Influence of Shear Lag Coefficient on Circular Hollow Sections with Bolted Sleeve Connections.” REM - International Engineering Journal 70, no. 4 (December 2017): 393–398. doi:10.1590/0370-44672014700220.
Documentation, Dassault ABAQUS. "ABAQUS/CAE Doc." Simulia: Providence, RI, USA (2016).
Guo, Hui. "Shear lag effect on welded hot-rolled steel channel in tension." M.Sc. thesis, University of Alberta (2005): 1435-1435.
- There are currently no refbacks.
Copyright (c) 2020 Mohammad Abedin, Nafiseh Kiani, Esmail Shahrokhinasab, Sohrab Mokhtari
This work is licensed under a Creative Commons Attribution 4.0 International License.