ANIDIS - L'ingegneria Sismica in Italia, ANIDIS XIX & ASSISi XVII - 2022

Dimensione del carattere:  Piccola  Media  Grande

Complex Modal Shapes Superposition Response Spectrum Method and Response History Analysis method of Seismically Isolated Structures in China

Ping Tan, Kui Yang, Jiajun Tan, Wenzhi Zheng

Ultima modifica: 2022-08-10


Seimical isolation technology has become a practical strategy for seismic-resistant design. Many countries have accelerated the research and engineering application of seismic isolation buildings and the design procedures of seismic isolation buildings, which is suitable for national conditions, are formulated. This study introduces the newly issued Building Seismic Isolation Design Standards of China, in which an integrated direct design method for isolation structures is proposed. The framework of the proposed design method is based on the idea of the Complex-mode-superposition response spectrum, which is different from the traditional two-stage seismic reduction coefficient design method. The new standard design spectrum for a seismically isolated building is given in this standard. The dynamic history analysis method, the integrated direct design method, and the  seismic reduction coefficient  design method are employed to conduct the seismic isolation design using the seismically isolated benchmark model, respectively. To facilitate the comprehensive comparisons of the seismic isolation design codes from various countries, some important design parameters and analysis results obtained from the China standard are reported and evaluated in this study.  


Keywords Building; Seismic Isolation Design Standards; Seismically Isolation Benchmark Model; CCQC; Design Parameters; Design Method


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