The effect of stiffener on behavior of reduced beam section connections in steel moment-resisting frames

2015 ◽  
Vol 15 (4) ◽  
pp. 827-834 ◽  
Author(s):  
M. Tahamouli Roudsari ◽  
F. Abdollahi ◽  
H. Salimi ◽  
S. Azizi ◽  
A. R. Khosravi
Keyword(s):  
Steel Moment Resisting Frames ◽  
Reduced Beam Section ◽  
Moment Resisting Frames ◽  
Moment Resisting ◽  
Beam Section

VULNERABILITY REDUCTION OF STEEL MOMENT RESISTING FRAMES BY MEANS OF REDUCED BEAM SECTION

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Rosario Montuori
Keyword(s):  
Seismic Load ◽  
Steel Moment Resisting Frames ◽  
Reduced Beam Section ◽  
Load Combination ◽  
Plastic Mechanism ◽  
Moment Resisting ◽  
Final Design ◽  
Mechanism Control ◽  
Beam Section ◽  
The Cost

The idea and the developed example of this work are based on the attainment of seismic performance improvement by simply trimming the flanges of the beam-ends. This strategy is to be applied by considering both the results of the theory of plastic mechanism control and the rules assuring the yielding of reduced beam sections (RBS) when seismic loads are applied to the structure. The results of such strategy are not always effective. In fact, there are several conditions that are to be satisfied in order to obtain an actual seismic improvement. Notwithstanding, when these conditions are satisfied, the cost of intervention can be considered as negligible. For this reason, this strategy can be very interesting and the rules applied in this work can clarify which is the effect of RBS taking into account all the parameters playing a role in the final design, i.e. existing column sections, resistance and ductility of existing connections, vertical loads acting in seismic load combination, amount of the reduction of beam section and its distance from the connection.

Performance-based assessment of seismic-resilient steel moment resisting frames equipped with innovative column base connections

Structures ◽  
2021 ◽  
Vol 32 ◽  
pp. 1646-1664
Author(s):  
Elena Elettore ◽  
Annarosa Lettieri ◽  
Fabio Freddi ◽  
Massimo Latour ◽  
Gianvittorio Rizzano
Keyword(s):  
Steel Moment Resisting Frames ◽  
Moment Resisting Frames ◽  
Performance Based Assessment ◽  
Moment Resisting ◽  
Base Connections ◽  
Column Base

Collapse risk of pre-Northridge tall steel moment-resisting frames in the Seattle basin during large-magnitude subduction earthquakes

2021 ◽  
Vol 244 ◽  
pp. 112751
Author(s):  
Carlos Molina Hutt ◽  
Shervin Zahedimazandarani ◽  
Nasser A. Marafi ◽  
Jeffrey W. Berman ◽  
Marc O. Eberhard
Keyword(s):  
Large Magnitude ◽  
Steel Moment Resisting Frames ◽  
Moment Resisting Frames ◽  
Subduction Earthquakes ◽  
Moment Resisting
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