Behavior of double K-BRB braces under lateral loading

作     者：Ali GHAMARI Hadi HAERI Amir JOHARI NAEIMI Zohreh NAJMI Vahab SARFARAZI Ali GHAMARI;Hadi HAERI;Amir JOHARI NAEIMI;Zohreh NAJMI;Vahab SARFARAZI

作者机构：Department of Civil EngineeringDarreh Shahr BranchIslamic Azad UniversityDarreh ShahrIran State Key Laboratory for Deep GeoMechanics and Underground EngineeringBeijing 100083China Department of Civil EngineeringAmirkabir University of TechnologyTehranIran Department of Structural EngineeringAria University of Science and SustainabilityTehranIran Department of Mining EngineeringHamedan University of TechnologyHamedanIran 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2021年第28卷第8期

页      面：2394-2406页

核心收录：

学科分类：0810[工学-信息与通信工程] 081405[工学-防灾减灾工程及防护工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0814[工学-土木工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：buckling resisting brace(BRB) stiffness ultimate strength ductility brace energy absorption 

摘      要：The buckling resisting brace(BRB)is an efficient system against lateral loads that enjoy high seismic energy absorption *** desirable behavior of BRBs has been confirmed,the stiffness of the system is not desirable that it can be compensated by changing the configuration of BRB *** so doing,the configuration in the form of double K(DK)is investigated to achieve more favorable ***,the required mathematical formulas were proposed to design the *** of DK system with other conventional BRB showed that the DK system has a better structural performance and is more economical(due to needing less core area)than other conventional *** results indicated that the DK system increases the lateral ultimate strength,lateral nonlinear stiffness,and energy ***,the DK configuration reduces the axial forces created in columns in the nonlinear *** material demand,created forces in the main frame,and also increasing of nonlinear stiffens by DK improve the structure’s safety.