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.
Highlights
The rapid growth of the urban population and consequent pressure on limited space have considerably influenced city residential development
Dual systems comprising core wall systems and moment-resisting frames are used as resistance systems in tall buildings
By using active actuators in the braces, three different building heights were controlled under external excitations where concrete shear walls were used as secondary lateral load-resisting system in the buildings
Summary
The rapid growth of the urban population and consequent pressure on limited space have considerably influenced city residential development. The structure uses its internal energy to dissipate external energy. A large number of studies have been conducted on the active control concept (Yang et al 2004; Kwok et al 2006). These systems are able to control the structure displacements, accelerations and internal forces by using external energy and providing a direct counteracting force by the actuators. Using this strategy for controlling structures against external excitation has limitations because of some technological and economic aspects (Symans and Constantinou 1999), as well as the
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Advanced Structural Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
