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Paper Information

Journal:   INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING   MARCH 2016 , Volume 8 , Number 1; Page(s) 29 To 44.
 
Paper: 

OPTIMAL PLACEMENT OF ACTIVE BRACES BY USING PSO ALGORITHM IN NEAR-AND FAR-FIELD EARTHQUAKES

 
 
Author(s):  MASTALI M.*, KHEYRODDIN A., SAMALI B., VAHDANI R.
 
* DEPARTMENT OF CIVIL ENGINEERING, ISISE, MINHO UNIVERSITY, CAMPUS DE AZUREM, 4800-058 GUIMARAES, PORTUGAL
 
Abstract: 

One of the most important issues in tall buildings is lateral resistance of the load-bearing systems against applied loads such as earthquake, wind and blast. Dual systems comprising core wall systems (single or multi-cell core) and moment-resisting frames are used as resistance systems in tall buildings. In addition to adequate stiffness provided by the dual system, most tall buildings may have to rely on various control systems to reduce the level of unwanted motions stemming from severe dynamic loads.
One of the main challenges to effectively control the motion of a structure is limitation in distributing the required control along the structure height optimally. In this paper, concrete shear walls are used as secondary resistance system at three different heights as well as actuators installed in the braces. The optimal actuator positions are found by using optimized PSO algorithm as well as arbitrarily. The control performance of buildings that are equipped and controlled using the PSO algorithm method placement is assessed and compared with arbitrary placement of controllers using both near- and far-field ground motions of Kobe and Chi–Chi earthquakes.

 
Keyword(s): POLE ASSIGNMENT METHOD NEAR- AND FAR-FIELD EARTHQUAKES PSO ALGORITHM OPTIMAL ACTUATOR POSITION
 
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