Seismic design or retrofit of buildings with metallic structural fuses by the damage-reduction spectrum

作     者：Li Gang Jiang Yi Zhang Shuchuan Zeng Yan Li Qiang 

作者机构：State Key Laboratory of Structural Analysis of Industrial Equipment Dalian University of Technology CCCC Third Harbor Consultants Co. Ltd Xiamen Hordor Architecture & Engineering Design Group Co. Ltd 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2015年第14卷第1期

页      面：85-96页

核心收录：

学科分类：081405[工学-防灾减灾工程及防护工程] 08[工学] 0815[工学-水利工程] 081503[工学-水工结构工程] 0814[工学-土木工程] 

基　　金：National Natural Science Foundation of China under Grant Nos.11372061 and 91315301 

主　　题：seismic design structural fuse damage-reduction spectrum retrofit 

摘      要：Recently, the structural fuse has become an important issue in the field of earthquake engineering. Due to the trilinearity of the pushover curve of buildings with metallic structural fuses, the mechanism of the structural fuse is investigated through the ductility equation of a single-degree-of-freedom system, and the corresponding damage-reduction spectrum is proposed to design and retrofit buildings. Furthermore, the controlling parameters, the stiffness ratio between the main frame and structural fuse and the ductility factor of the main frame, are parametrically studied, and it is shown that the structural fuse concept can be achieved by specific combinations of the controlling parameters based on the proposed damage-reduction spectrum. Finally, a design example and a retrofit example, variations of real engineering projects after the 2008 Wenchuan earthquake, are provided to demonstrate the effectiveness of the proposed design procedures using buckling restrained braces as the structural fuses.