Active tendons control of structures using block pulse functions

作者：Ghaffarzadeh Hosein^*; Younespour Amir

来源：Structural Control and Health Monitoring, 2014, 21(12): 1453-1464.

DOI：10.1002/stc.1656

• active control
• active tendon
• block pulse functions
• linear quadratic regulator
• seismic response

Structural active control is one of the most efficient systems available to protect building structures from destructive effects of earthquakes. Active control efficiency is highly dependent on control algorithm. One of the most important and challenging components of structural control is the development of an accurate analytical approach having less computational expenses. Block pulse functions have been studied and applied frequently in recent years as a basic set of functions for signal characterizations in systems science and control. The proposed method evolves minimizing computational expenses of analytical approaches by a novel method to suppress the responses of the structure based on block pulse functions. To prove the validity and feasibility of the proposed control method, numerical simulations of earthquake-excited 10-story shear buildings with active tendons are performed, and comparative results are presented. The uncontrolled and controlled responses of structural system are obtained by using the proposed method and compared with linear quadratic regulator method. The results reveal that the proposed method can be beneficial in reducing seismic responses of structures with high accuracy and less computational expenses.

• 出版日期2014-12