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http://dx.doi.org/10.12989/eas.2017.12.4.449

Study on the effects of various mid-connections of x-brace on frame behavior  

Hadianfard, Mohammad Ali (Department of Civil and Environmental Engineering, Shiraz University of Technology)
Hashemi, Ali (Department of Civil and Environmental Engineering, Shiraz University of Technology)
Gholami, Mohammad (Department of Civil and Environmental Engineering, Shiraz University of Technology)
Publication Information
Earthquakes and Structures / v.12, no.4, 2017 , pp. 449-455 More about this Journal
Abstract
Using X-braced frames in steel structures is a current procedure to achieve good strength against lateral loads. Study on mid-connections of X-braces and their effects on frame behavior is a subject whose importance has been more or less disregarded by researchers. Experimentally inspecting models involves considerable expense and time; however, computer models can be more suitable substitutes. In this research, a numerical model of X-braced frame has been analyzed using finite element software. The results of pushover analysis of this frame are compared with those of the experimental test. With the help of computer model, the effects of different mid-connection details on ductility and lateral strength of the frame are inspected. Also performances of bolted and welded connections are compared. Taking into account ductility and strength, this study suggests details of a decent pattern for the mid-connection.
Keywords
steel structures; X-brace; mid-connection; ductility; lateral strength;
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Times Cited By KSCI : 8  (Citation Analysis)
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1 Zahrai1a, S.M. and Jalali, M. (2014), "Experimental and analytical investigations on seismic behavior of ductile steel knee braced frames", Steel Compos. Struct., 16(1), 1-21.   DOI
2 Caruso-Juliano, A., Gallagher, A., Morrison, T.E. and Rogers, C.A. (2014), "Seismic performance of single-storey steel concentrically braced frame structures constructed in the 1960s", Can. J. Civ. Eng., 41(7), 579-593.   DOI
3 Cheng, J.J.R, Yam, M.C. and Hu, S.Z. (1993), "Elastic buckling strength of gusset plate connections", J. Struct. Eng., ASCE, 120(2), 538-559.   DOI
4 Davaran, A., Gelinas, A. and Tremblay, R. (2012), "Experimental seismic response of slotted connections at the intersection of HSS braces in x-bracing systems", ASCE/SEI Structures Congress, Chicago IL, March.
5 Davaran, A. and Hoveidae, N. (2009). "Effect of mid-connection detail on the behavior of cross-bracing systems", J. Constr. Steel Res., 65(4), 985-990.   DOI
6 Deliktas, B. and Mizamkhan, A. (2014), "Modeling nonlinear behavior of gusset plates in the truss based steel bridges", Struct. Eng. Mech., 51(5), 809-821.   DOI
7 Fang, C., Yam, M.C., Cheng, J.R. and Zhang, Y. (2015), "Compressive strength and behaviour of gusset plate connections with single-sided splice members", J. Constr. Steel Res., 106, 166-183.   DOI
8 Guneyisi, E.M. and Ameen, N. (2014), "Structural behavior of conventional and buckling restrained braced frames subjected to near-field ground motions", Earthq. Struct., 7(4), 553-570.   DOI
9 Hadianfard, M.A. and Khakzad, A.R. (2016), "Inelastic buckling and post-buckling behavior of gusset plate connections", Steel Compos. Struct., 22(2), 411-427.   DOI
10 Hadianfard, M.A., Khakzad, A.R. and Vaghefi, M. (2015), "Analysis of the effect of stiffener on the buckling capacity and non-elastic behavior of bracing gusset plates", Scientia Iranica, Transaction A, Civil Engineering, 22(4), 1449-1456.
11 Hassan, M.M., Ramadan, H.M., Naeem, M. and Mourad, S.A. (2014), "Behavior of gusset plate-to-CCFT connections with different configurations", Steel Compos. Struct., 17(5), 735-751.   DOI
12 Hibbitt, K. (2010), ABAQUS standard user's manual version 6.10. Sorensen Inc., Pawtucket (RI).
13 Rajasekaran, S. and Wilson, A.J. (2013), "Buckling and vibration of rectangular plates of variable thickness with different end conditions by finite difference technique", Struct. Eng. Mech., 46(2), 269-294.   DOI
14 Mahmoudi, M. and Zaree, M. (2011), "Evaluation the over strength of concentrically steel bracing frame systems considering members post-buckling strength", Int. J. Civ. Eng., 9(1), 65-80.
15 Moni, M., Moradi, S. and Alam, M.S. (2016), "Response modification factors for steel buckling restrained braced frames designed as per NBCC 2010", Can. J. Civ. Eng., 43(8), 702-715.   DOI
16 Park, R. and Priestley, M.J.N. (1987), "Evaluation of ductility of structures and structural assemblages from laboratory testing", Struct. J., ACI, 84(1), 61-76.
17 Salawdeh, S. and Goggins, J. (2016), "Direct displacement based seismic design for single storey steel concentrically braced frames", Earthq. Struct., 10(5), 1125-1141.   DOI
18 Thornton, W.A. (1984), "Bracing connection for heavy construction.", Eng. J., AISC, 121(3), 139-148.
19 Tremblay, R., Archambault, M.H. and Filiatrault, A. (2003), "Seismic response of concentrically braced steel frames made with rectangular hollow bracing members", J. Struct. Eng, 129(12), 1626-1636.   DOI
20 Unal, A. and Kaltakci, M.Y. (2016), "Seismic behavior of Concentrically steel braced frames and their use in strengthening of reinforced concrete frames by external application", Steel Compos. Struct., 21(4), 687-702.   DOI
21 Whitmore, R.E. (1952), Experimental investigation of stresses in gusset plates, Bulletin No. 16, Engineering Experiment Station, University of Tennessee.
22 Yamashita, T. (2012), "Seismic performance of x-braces of equalleg angle", 15th WCEE, Lisboa University, Lisbon, Portugal.