Development of seismic force requirements for buildings in Taiwan

        Juin-Fu Chai , Tsung-Jen Teng and Keh-Chyuan Tsai

Center for Research on Earthquake Engineering, Chinese Taipei

Abstract: This paper describes static and dynamic procedures to calculate seismic demand specified by the current
seismic design code for buildings in Taiwan, which was issued in 2005. For design levels with a return period of 475 years, the
design spectral response acceleration can be developed for general sites, near-fault sites and Taipei Basin. In addition, in order
to prevent building collapse during extremely large earthquakes and yielding of structural components and elements during
frequent small earthquakes, the required seismic demands at the maximum considered earthquake level (MCE, 2%/50 years)
and operational level are also included in the new seismic design code. For dynamic analysis procedures, both the response
spectrum method and time history method are specified in the new seismic design code. Finally, procedures to generate
spectrum compatible ground motions for time history analysis are illustrated in this paper.

Keywords: building code; seismic force requirement; design spectrum; spectrum compatible design ground motion; site
effect; near-fault; basin effect



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