Seismic performance of buckling-restrained reduced beam section connection for steel frames

2021 ◽  
Vol 181 ◽  
pp. 106622
Author(s):  
Chenyu Liu ◽  
Jing Wu ◽  
Luqi Xie
Keyword(s):  
Seismic Performance ◽  
Steel Frames ◽  
Reduced Beam Section ◽  
Beam Section

Seismic Performance Evaluation of Intermediate Moment Frames with Reduced Beam Section and Bolted Web Connections

2015 ◽  
Vol 31 (2) ◽  
pp. 895-919 ◽  
Author(s):  
Sang Whan Han ◽  
Ki Hoon Moon ◽  
Seong-Hoon Hwang ◽  
Bozidar Stojadinovic
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Moment Frames ◽  
Seismic Performance Evaluation ◽  
Reduced Beam Section ◽  
Rotation Capacity ◽  
Special Moment Frames ◽  
Story Drift ◽  
Beam Section ◽  
B Test

A reduced beam section with a bolted web (RBS-B) connection is permitted for use only in intermediate moment frames (IMF) according to the ANSI/AISC 358-05. This is because some RBS-B test specimens failed to achieve 4% total rotation capacity, which is the minimum story drift angle required for special moment frames (SMF). Several studies reported that some RBS-B connections could experience brittle connection fracture during earthquakes, which can also be detrimental to the seismic performance of IMF systems with RBS-B connections. For investigating whether IMFs with RBS-B connections provide a satisfactory seismic performance, this study evaluated the seismic performance of IMFs with pre-qualified RBS-B connections following the ATC-63 procedure. Twenty-four model buildings were designed according to current seismic design provisions. Several IMFs with RBS-B connections do not satisfy the acceptance criteria specified in ATC-63.

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