Exposed column base plate connections in moment frames — Simulations and behavioral insights

2013 ◽  
Vol 84 ◽  
pp. 82-93 ◽  
Author(s):  
A.M. Kanvinde ◽  
S.J. Jordan ◽  
R.J. Cooke
Keyword(s):  
Base Plate ◽  
Moment Frames ◽  
Plate Connections ◽  
Column Base

scholarly journals Seismic Demands in Column Base Connections of Steel Moment Frames

2018 ◽  
Vol 34 (3) ◽  
pp. 1383-1403 ◽  
Author(s):  
Pablo Torres-Rodas ◽  
Farzin Zareian ◽  
Amit Kanvinde
Keyword(s):  
Time History ◽  
Base Plate ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Seismic Demands ◽  
Axial Forces ◽  
Plate Connections ◽  
Nonlinear Time History ◽  
Base Connections ◽  
Column Base

Methods for the seismic design of base connections in steel moment frames are well-developed and routinely utilized by practicing engineers. However, design loads for these connections are not verified by rigorous analysis. This knowledge gap is addressed through nonlinear time history simulations using design-level seismic excitation that interrogate demands in column base connections in 2-, 4-, 8-, and 12-story steel moment frames, featuring base connections that reflect current U.S. practice. The results indicate that: (1) for exposed base plate connections, lower bound (rather than peak) estimates of axial compression are suitable for design because higher axial forces increase connection strength by delaying base plate uplift; (2) even when designed as pinned (as in low-rise frames), base connections carry significant moment, which can be estimated only through accurate representation of base flexibility; and (3) the failure of embedded base connections is controlled by moment, which may be estimated either through overstrength or capacity-based calculations.

Interaction curves for column base-plate connections

1997 ◽  
Vol 44 (1-2) ◽  
pp. 69-89 ◽  
Author(s):  
G.N. Stamatopoulos ◽  
J.Ch. Ermopoulos
Keyword(s):  
Base Plate ◽  
Interaction Curves ◽  
Plate Connections ◽  
Column Base

Mathematical modelling of column base plate connections

1996 ◽  
Vol 36 (2) ◽  
pp. 79-100 ◽  
Author(s):  
John Ch. Ermopoulos ◽  
George N. Stamatopoulos
Keyword(s):  
Mathematical Modelling ◽  
Base Plate ◽  
Plate Connections ◽  
Column Base
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