Seismic performance of high-strength steel fabricated eccentrically braced frame with vertical shear link

2017 ◽  
Vol 137 ◽  
pp. 262-285 ◽  
Author(s):  
Ming Lian ◽  
Mingzhou Su
Keyword(s):  
Seismic Performance ◽  
High Strength Steel ◽  
High Strength ◽  
Vertical Shear ◽  
Braced Frame ◽  
Shear Link ◽  
Eccentrically Braced Frame

Seismic Performance of Eccentrically Braced Frames with Shear Link

2020 ◽  
Vol 35 ◽  
pp. 55-68
Author(s):  
Sara Ansari ◽  
Javad Tashakori ◽  
Javad Razzaghi
Keyword(s):  
Plastic Deformation ◽  
Seismic Performance ◽  
Braced Frames ◽  
Eccentrically Braced Frames ◽  
Braced Frame ◽  
Shear Link ◽  
Plastic Rotation ◽  
Eccentrically Braced Frame ◽  
Shear Links ◽  
Ultimate Limit

The push-over nonlinear evaluation of four eccentrically braced frame performance was conducted to assess the plastic deformation and location of plastic hinges in buildings with six, nine, twelve and fifteen stories. The excessive plastification of out-of-beam members is revealed in the majority of these buildings while the AISC design provision allows the moderate plastification in these members. Therefore, the beams out of link might be in danger of fracture of web and flange. Likewise, this was controversial evidence in Chrischurch earthquakes. In order to modify this problem either using fixed connection of braced members or using the very short shear links which have less end moment force than out-of-link beams moment strength are recommended. By this modification, the response modification coefficients are calculated for these buildings which are almost equal to the provision value. The maximum plastic rotation of shear links recommended by provisions (0.08 radian) is the upper ultimate limit to prevent emerging of out-of-link member`s instability.

Experimental Study on Seismic Behavior of High Strength Steel Composite K-Type Eccentrically Braced Frames

2013 ◽  
Vol 838-841 ◽  
pp. 559-563
Author(s):  
Liu Sheng Duan ◽  
Ming Zhou Su ◽  
Hui Li
Keyword(s):  
High Strength Steel ◽  
Seismic Behavior ◽  
Cyclic Load ◽  
Failure Modes ◽  
High Strength ◽  
Eccentrically Braced Frames ◽  
Braced Frame ◽  
Eccentrically Braced Frame ◽  
Steel Composite ◽  
Energy Absorbing

High strength steel composite K-type eccentrically braced frame is a new structural system, in which the link is made from low yield point steel and the others are made from high strength steel. In order to study the seismic behavior of such a structure, four one-bay one-story 1/2 scaled plane specimens were tested under the monotonic and cyclic load respectively. The failure modes and the main indexes of seismic behavior of specimens with various links length were analyzed. The results show that this new structural form is good at energy dissipation and ductility, and the way of energy absorbing by shear yield is better than by flexure yield. Under cyclic load, the main failure were concentrated at links, while the other parts of the eccentrically braced frame kept in elastic status. This kind of structure is an excellent dual resistance system and easy to rehabilitate after earthquake.

Seismic performance of eccentrically braced frame with vertical link using PBPD method

2012 ◽  
Vol 23 (1) ◽  
pp. 1-21 ◽  
Author(s):  
M. A. Shayanfar ◽  
A. R. Rezaeian ◽  
A. Zanganeh
Keyword(s):  
Seismic Performance ◽  
Braced Frame ◽  
Eccentrically Braced Frame
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