Abstract
The welded unreinforced flange-welded web (WUF-W) moment connection is one of seven prequalified connections for the special moment frames (SMF) specified in AISC 358-10. Previous studies reported that some WUF-W connections with a steep access hole slope failed before completing a loading cycle of 4% drift ratio. For investigating in detail the effect of access hole geometry including access hole slopes on the connection behavior, experimental tests require excessive costs and efforts because there are the large number of combinations of configuration parameters for access hole geometry. In this study, the cyclic behavior of WUF-W connections is evaluated using three-dimensional nonlinear finite element (FE) analyses with an adequate solid element and failure index. Based on the results of FEA, the effect of configuration parameters on the connection behavior is investigated.
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References
American Institute of Steel Construction Inc. (2010). Seismic provisions for structural steel buildings, ANSI/AISC 341-10, Chicago, IL.
American Institute of Steel Construction Inc. (2010). Prequalified connections for special and intermediate steel moment frames for seismic applications, ANSI/ AISC 358-05, Chicago, IL.
American Welding Society (2009). Structural welding codeseismic supplement, AWSD 1.8/D1.8M, Miami FL.
Dassault Systemes (2010). ABAQUS Analysis User’s Manual, Providence, RI.
El-Tawil, S., Mikesell, T., Vidarsson, E., Kunnath, S.K. (1998). “Strength and ductility of FR welded-bolted connections, SAC Joint Venture.” Rep. No. SAC/BD-98/01, Richmond, CA.
Han, S.W., Moon, K.H., Jung, J. (2014). “Seismic Performance Evaluation of Intermediate Moment Frames with Reduced Beam Section and Bolted Web Connections.” Earthquake Spectra, 31(24), pp. 1663–1681.
Kaufmann, E.J. (2001). “Characterization of cyclic inelastic strain behavior on properties of A572 Gr.50 and A913 Gr. 50 Rolled Sections.” ATLSS Rep. No. 01-13, Bethlegem, PA.
Krawinkler, H., Gupta, A., Medina, R., and Luco, N. (2000). “Loading histories for seismic performance testing of SMRF components and assemblies.” SAC Joint Venture, Rep. No. SAC/BD-00/10, Sacramento, CA.
Lee, D., Cotton, S.C., Hajjar, J.F., Dexter, R.J., and Ye, Y. (2005a). “Cyclic connections reinforced by alternative column stiffner details I: panel zone behavior and doubler plate detailing.” AISC Engineering Journal, 42(4), pp. 189–214.
Lee, D., Cotton, S.C., Hajjar, J.F., Dexter, R.J., Ye, Y. (2005b). “Cyclic connections reinforced by alternative column stiffner details II: panel zone behavior and doubler plate detailing.” AISC Engineering Journal, 42(4), pp. 215–238.
Lu, L.W., Ricles, J.M., Fisher, J.W. (2000). “Critical issues in achieving ductile behavior of welded moment connections.” Journal of Constructional Steel Research, 55, pp. 325–341.
Malley J. (1998). “SAC steel project: Summary of phase 1 testing investigation results.” Engineering Structures, 20(4-6), pp. 300–309.
Mao, C., Ricles, J., Lu, L.W., and Fisher, J. (2001). “Effect of local details on ductility of welded moment connections,” ASCE Journal of Structural Engineering, 127(9), pp.1036–1044.
Plumier, A. (1990). “New idea for safe structure in seismic zones.” Proceedings of LABSE Symposium, Belgium, Brussels, pp. 253–258.
Ricles, J.M., Mao, C., Lu, L.W., and Fisher, J.W. (2002). “Inelastic cyclic testing of welded unreinforced moment connections.” ASCE Journal of Structural Engineering, 128(4), pp. 429–440.
Ricles, J.M., Fisher, J.W., Lu, L.W., and Kaufmann, E.J. (2000). “Development of improved welded moment connections for earthquake-resistant design.” ASCE Journal of Structural Engineering, 58(19), pp. 565–604.
Roeder C.W. (2002). “Connection performance for seismic design of steel moment frames.” ASCE Journal of Structural Engineering, 128(4), pp. 300–309.
Richmond. (2000). Recommended seismic design criteria for new steel moment frame buildings, FEMA 350, CA.
Youssef, N.F.G., Bonowitz, D, and Gross, J.L. (1995). “A survey of steel moment resisting frame buildings affected by the 1994 Northridge earthquake.” National Institute of Standard and Technology, Rep. No. NISTIR-5625.
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Han, S.W., Kim, N.H. & Cho, S.W. Prediction of cyclic behavior of WUF-W connections with various weld access hole configurations using nonlinear FEA. Int J Steel Struct 16, 1197–1208 (2016). https://doi.org/10.1007/s13296-016-0057-0
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DOI: https://doi.org/10.1007/s13296-016-0057-0