Seismic Design of Gusset Plate Connections in Concentrically Braced Frames

Abstract:

In concentrically braced frames (CBF), gusset plates as the connected members are subjected to forces not only from brace but also from frame action. When the braced frame is deformed, the beam-column connection will deform, and the deformation of beam-column connection either “open” or “close” as the brace under “compression” or “tension”. Therefore, the design of gusset plate should consider the effect of such frame action, in addition of the brace axial load. Six finite element models were developed using ABAQUS to investigate the force distribution of gusset plate under the two actions. It is noted that force in gusset plate can be divided into two parts and frame action is so small that can be neglected during brace buckling.

• Periodical: Key Engineering Materials (Volume 763)
• Pages: 141-148
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.763.141
• Online since: February 2018
• Authors: Yao Cui*, Wei Zhang, Jia Chen Zhang, Qi Tang
• Keywords: Concentrically Braced Frames, Finite Element Analysis (FEA), Gusset Plate, Seismic Design

References

[1] NIST. Seismic design of steel special concentrically braced frame systems,. (NIST GCR 13-917-24). Gaithersburg: National Institute of Standards and Technology, (2013).

[2] AISC. Seismic provisions for structural steel buildings,. Chicago: American Institute of Steel Construction, (2010).

[3] Yoo J.H., Roeder C.W., Lehman D.E. Analytical performance simulation of special concentrically braced frames,. Journal of Structure Engineering 134, No. 6, pp: 881–889, (2008).

DOI: 10.1061/(asce)0733-9445(2008)134:6(881)

[4] Lehman D.E., Roeder C.W., Herman D., Johnson S., Kotulka B. Improved seismic performance of gusset plate connections,. Journal of Structure Engineering 134, No. 6, pp: 890–901, (2008).

DOI: 10.1061/(asce)0733-9445(2008)134:6(890)

[5] Johnson S., Improved seismic performance of special concentrically braced frames,. Master Thesis. Seattle(Washington): Department of Civil Engineering, University of Washington, (2005).

[6] Kaneko K., Kasai K., Motoyui S., Sueoka T., Azuma Y., Ooki Y. Analysis of beam-column-gusset components in 5-story value-added frame, Proceedings of the 14th world conference on Earthquake Engineering, Beijing, China, (2008).

[7] Chou C.C., Liu C.H., Pham D.H. Steel buckling-restrained braced frames with single and dual corner gusset connections: seismic tests and analysis, Earthquake Engineering and Structural Dynamics 41, No. 7, pp.1137-1156, (2012).

DOI: 10.1002/eqe.1176

[8] Lin P.C., Tsai K.C., Wu A.C., Chuang M.C., Seismic design and test of gusset connections for buckling-restrained braced frames, Earthquake Engineering and Structural Dynamics 43, No. 4, pp.565-587, (2014).

DOI: 10.1002/eqe.2360