Beam-to-CFT High-Strength Joints with External Diaphragm. II: Numerical Simulation of Joint Behavior
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Structural Engineering
Volume 143, Issue 5
Abstract
The paper presents the outcome of a finite-element numerical investigation program developed and carried out in connection to a set of experimental investigations performed on welded beam-to-column joints, with columns realized as concrete-filled tubes (CFT) with rectangular hollow sections (RHS). The current study was aimed to calibrate a set of numerical models, to conduct a parametric study, and to validate the proposed design procedure. Joint models were calibrated, and additional parameters were investigated numerically, such as: influence of the concrete core, influence of the axial force in the column, response of one-way and two-way joints. It was shown that (1) the influence of concrete core was proved to be low for the single sided RBS or CP joint assemblies, but significant corresponding to joints with strengthened beam, (2) the response of the joint assembly was not affected by the presence of the axial compression force in the column, and (3) the connection solution with external diaphragms was characterized by an adequate response considering one-way and two-way joints. The current study evidenced a good conception and design of the reduced beam section (RBS) and cover plate (CP) joints. In particular, the study proved the feasibility of using higher steel grades in columns and joint components, and the use of an external diaphragm for the transfer the loads from the beam to the side walls of the rectangular hollow section (RHS) steel tube.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The research leading to these results has received funding from the European Community’s Research Fund for Coal and Steel (RFCS) under grant agreement no. RFSR-CT-2009-00024 “High Strength Steel in Seismic Resistant Building Frames” (HSS-SERF). [Additional information is available within the Final Report of the project; see Dubina et al. (2015)].
References
Abaqus v6.11 [Computer software]. Dassault Systèmes, Waltham, MA.
Abaqus v6.7 [Computer software]. Dassault Systèmes, Waltham, MA.
Ahmed, B., and Nethercot, D. A. (1998). “Effect of column axial load on composite connection behavior.” Eng. Struct., 20(1–2), 113–128.
Ali, A., Farid, B., and AL-Janabi, A. (1990). “Stress-strain relationship for concrete in compression made of local materials.” J. King Abdulaziz Univ. Eng. Sci., 2(1), 183–194.
Calado, L., Castiglioni, C. A., and Bernuzzi, C. (2000). “Seismic behavior of welded beam-to-column joints: experimental and numerical analysis.” Proc., IV Workshop on Connections in Steel Structures, American Institute of Steel Construction, Chicago.
CEN (European Committee for Standardization). (2004). “Design of composite steel and concrete structures—Part 1: General rules and rules for buildings.” Eurocode 4: EN 1994-1-1, Brussels, Belgium.
CEN (European Committee for Standardization). (2006). “Design of steel structures—Part 1-5: Plated structural elements.” Eurocode 3: EN 1993-1-5, Brussels, Belgium.
Chou, C. C., Wu, C. C., Jao, C. K., and Wang, Y. Y. (2006). “Weakened and strengthened steel moment connections.” Porc., 4th Int. Conf. on Earthquake Engineering, National Center for Research on Earthquake Engineering, Chinese Taiwan Society for Earthquake Engineering, Taipei, Taiwan.
Dubina, D., et al. (2015). “High strength steel in seismic resistant building frames (HSS-SERF).”, RFCS Publications, European Commission, Bruxelles, Belgium.
Dutta, A., Dhar, S., and Acharyya, S. K. (2010). “Material characterization of SS 316 in low-cycle fatigue loading.” J. Mater. Sci., 45(7), 1782–1789.
Kiamanesh, R., Abolmaali, A., and Ghassemieh, M. (2010). “The effect of stiffeners on the strain patterns of the welded connection zone.” J. Constr. Steel Res., 66(1), 19–27.
Kim, Y. J., Shin, K. J., and Kim, W. J. (2008). “Effect of stiffener details on behavior of CFT column-to-beam connections.” Int. J. Steel Struct., 8(2), 119–133.
Korotkov, V., Poprygin, D., Ilin, K., and Ryzhov, S. (2004). “Determination of dynamic reaction in concrete floors of civil structures of nuclear power plant in accidental drops of heavy objects.” ABAQUS Users’ Conf., ABAQUS, Boston, 399–408.
Nip, K. H., Gardner, L., Davies, C. M., and Elghazouli, A. Y. (2010). “Extremely low cycle fatigue tests on structural carbon steel and stainless steel.” J. Constr. Steel Res., 66(1), 96–110.
Schäfer, D., et al. (2010). “Modern plastic design for steel structures (final report).” Directorate-General for Research, Bruxelles, Belgium.
Shi, Y., Wang, M., and Wang, Y. (2011). “Experimental and constitutive model study of structural steel under cyclic loading.” J. Constr. Steel Res., 67(8), 1185–1197.
Shin, K.-J., Kim, Y.-J., Oh, Y.-S., and Moon, T.-S. (2004). “Behavior of welded CFT column to h-beam connections with external stiffeners.” Eng. Struct., 26(13), 1877–1887.
Vegte, G. J., and Makino, Y. (2004). “Numerical simulations of bolted connections—Implicit versus explicit approach.” Connections in steel structures V, Delft Univ. of Technology, Delft, Netherlands, 89–98.
Vulcu, C., Stratan, A., Ciutina, A., and Dubina, D. (2016). “Beam-to-CFT high-strength joints with external diaphragm. I: Design and experimental validation.” J. Struct. Eng.,.
Vulcu, C., Stratan, A., and Dubina, D. (2012). “Seismic resistant welded connections for MRF of CFT columns and I beams.” Proc., 7th Int. Workshop on Connections in Steel Structures, European Convention for Constructional Steelwork, Brussels, Belgium.
Zhang, X., and Ricles, J. M. (2006a). “Experimental evaluation of reduced beam section connections to deep columns.” J. Struct. Eng., 346–357.
Zhang, X., and Ricles, J. M. (2006b). “Seismic behavior of reduced beam section moment connections to deep columns.” J. Struct. Eng., 358–367.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 143 • Issue 5 • May 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Oct 10, 2015
Accepted: Sep 8, 2016
Published ahead of print: Jan 16, 2017
Published online: Jan 17, 2017
Published in print: May 1, 2017
Discussion open until: Jun 17, 2017
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.