Parametric Finite-Element Modeling for Exposed Steel Moment Frame Column Baseplate Connections Subjected to Lateral Loads
Publication: Journal of Structural Engineering
Volume 144, Issue 6
Abstract
The behavior of steel column baseplate connections in moment frames subjected to lateral loads has been the subject of numerous experimental investigations, giving rise to a variety of methods for determining strength and stiffness characteristics appropriate for design. However, there has been limited work to develop, and particularly to verify, general methods for predicting connection-level moment-rotation response. Although predictive methods have been implemented within the context of single test programs, a broadly verified, generalized modeling approach is lacking. This paper presents a rapid parametric numerical modeling approach for analysis of exposed, moment frame baseplate connections of many configurations subject to combined axial and moment loads. The accuracy of the models is verified using experimental results from five distinct test programs. An example parametric analysis is presented to demonstrate the usefulness of the procedure and illustrate how subtle design changes may impact the moment-rotation behavior, evolution of stress and strain in various components, and failure modes.
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Acknowledgments
This research was funded in part by Hilti Corporation and by the University of California, San Diego. The authors gratefully acknowledge the support of these organizations. The authors would also like to thank Dr. Ulrich Bourgund, Dr. Phillip Grosser, Dr. Roberto Piccinin, and John Silva for their input. Opinions, findings, and conclusions are those of the authors, and do not necessarily reflect the views of the sponsoring organizations.
References
ACI (American Concrete Institute). (2013). “Building code requirements and specification for masonry structures and companion commentaries.” ACI 530-13, Farmington Hills, MI.
ACI (American Concrete Institute). (2014). “Building code requirements for structural concrete and commentary.” ACI 318-14, Farmington Hills, MI.
ASIC. (2005). Steel construction manual (including electronic resources), Chicago.
Astaneh, A., Bergsma, G., and Shen, J. H. (1992). “Behavior and design of base plates for gravity, wind and seismic loads.” Proc., National Steel Construction Conf., AISC, Chicago.
ASTM. (2007). “Standard specification for anchor bolts, steel, 36, 55, and 105-ksi yield strength.” ASTM F1554-07a, West Conshohocken, PA.
ASTM. (2009). “Standard specification for alloy steel and stainless steel bolting for high temperature or high pressure service and other special purpose applications.” ASTM A193-09, West Conshohocken, PA.
ASTM. (2011). “Standard specification for quenched and tempered alloy steel bolts, studs, and other externally threaded fasteners.” ASTM A354-11, West Conshohocken, PA.
ASTM. (2012). “Standard specification for carbon steel bolts, studs, and threaded rod 60000 PSI tensile strength.” ASTM A307-12, West Conshohocken, PA.
ASTM. (2013). “Standard test method for compressive strength of hydraulic cement mortars (using 2-in. or [50-mm] cube specimens).” ASTM C109-13, West Conshohocken, PA.
ASTM. (2015). “Standard specification for anchor bolts, steel, 36, 55, and 105-ksi yield strength.” ASTM F1554-15, West Conshohocken, PA.
Burda, J., and Itani, A. (1999). “Studies of seismic behavior of steel base plates.”, Univ. of Nevada, Reno, NV.
Clark, P., Frank, K., Krawinkler, H., and Shaw, R. (1997). “Protocol for fabrication, inspection, testing, and documentation for beam column connection tests and other experimental specimens.”, SAC Joint Venture, Richmond, CA.
CEN (European Committee for Standardization). (2009). “Eurocode 3: Design of steel structures. 1-8: Design of joints.” EN 1993-1-8: 2005/AC, Brussels, Belgium.
Fahmy, M. (1999). “Seismic behavior of moment-resisting steel column bases.” Ph.D. dissertation, Univ. of Michigan, Ann Arbor, MI.
Fisher, J. M., and Kloiber, L. A. (2006). Design guide 1: Base plate and anchor rod design, 2nd Ed., AISC, Chicago.
Gomez, I., Deierlein, G., and Kanvinde, A. (2010). “Exposed column base connections subjected to axial compression and flexure.”, AISC, Chicago.
Grauvilardell, J., Lee, D., Hajjar, J., and Dexter, R. (2005). “Synthesis of design, testing, and research on steel column base connections in high-seismic zones.”, Univ. of Minnesota Structural Engineering, Minneapolis.
Hilti, A. G. (2017). “Profis anchor software.” ⟨https://www.us.hilti.com/content/hilti/W1/US/en/engineering/software/profis/profis-anchor.html⟩ (Jan. 28 2017).
Kanvinde, A., Grilli, D., and Zareian, F. (2012). “Rotational stiffness of exposed column base connections: Experiments and analytical models.” J. Struct. Eng., 549–560.
Kanvinde, A., Jordan, S., and Cooke, R. (2013). “Exposed column base plate connections in moment frames: Simulations and behavioral insights.” J. Constr. Steel Res., 84, 82–93.
Krawinkler, H., Gupta, A., Medina, R., and Luco, N. (2000). “Development of loading histories for testing of steel beam-to-column assemblies.”, SAC Joint Venture, Richmond, CA.
LSTC (Livermore Software Technology Corporation). (2013). LS-DYNA keyword user’s manual, Vol. I–III, Livermore, CA.
Picard, A., and Beaulieu, D. (1985). “Behavior of a simple column base connection.” Can. J. Civ. Eng., 12(1), 126–136.
Python version 2.7 [Computer software]. Python Software Foundation, Wilmington, DE.
Risa Technologies, Inc. (2013). “Rapid interactive structural analysis: Base plate and anchorage analysis & design.” ⟨https://risa.com/documents/risabase/RBGenRef_v210.pdf⟩ (Jul. 24, 2016).
Rodas, P., Zareian, F., and Kanvinde, A. (2016). “Hysteretic model for exposed column–base connections.” J. Struct. Eng., 04016137.
Salmon, C., Schenker, L., and Johnston, G. (1957). “Moment-rotation characteristics of column anchorage.” Trans. ASCE, 122(5), 132–154.
Targowski, R., Lamblin, D., and Guerlement, G. (1993). “Baseplate column connection under bending: Experimental and numerical study.” J. Constr. Steel Res., 27(1–3), 37–54.
Trautner, C. (2016). “Improvements in connection robustness and reduction of seismic demands by ductile anchorage design.” Ph.D. dissertation, Univ. of California, San Diego.
Trautner, C., and Hutchinson, T. (2013). “Structural base plate connection component testing—Phase I.”, Univ. of California, San Diego.
Trautner, C., and Hutchinson, T. (2014). “Structural base plate connection component testing—Phase II.”, Univ. of California, San Diego.
Trautner, C., Hutchinson, T., Copellini, M., Grosser, P., Bachman, R., and Silva, J. (2017a). “Developing ductility using concrete anchorage.” ACI Struct. J., 114(01), 101–112.
Trautner, C., Hutchinson, T., Grosser, P., and Silva, J. (2015). “Effects of detailing on the cyclic behavior of steel baseplate connections designed to promote anchor yielding.” J. Struct. Eng., 04015117.
Trautner, C., Hutchinson, T., Grosser, P., and Silva, J. (2017b). “Investigation of steel column–baseplate connection details incorporating ductile anchors.” J. Struct. Eng., 04017074.
Wald, F., and Jaspart, J. (1998). “Stiffness design of column bases.” J. Constr. Steel Res., 46(1), 245.
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Information
Published In
Journal of Structural Engineering
Volume 144 • Issue 6 • June 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Sep 12, 2016
Accepted: Sep 19, 2017
Published online: Mar 27, 2018
Published in print: Jun 1, 2018
Discussion open until: Aug 27, 2018
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