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Volume 17, issue 10 | Copyright
Nat. Hazards Earth Syst. Sci., 17, 1725-1739, 2017
https://doi.org/10.5194/nhess-17-1725-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 06 Oct 2017

Research article | 06 Oct 2017

A procedure to select ground-motion time histories for deterministic seismic hazard analysis from the Next Generation Attenuation (NGA) database

Duruo Huang1, Wenqi Du2, and Hong Zhu3 Duruo Huang et al.
  • 1Department of Civil and Environmental Engineering and Institute for Advanced Study, Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, China
  • 2Institute of Catastrophe Risk Management, Nanyang Technological University, Singapore
  • 3Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Kowloon, Hong Kong SAR, China

Abstract. In performance-based seismic design, ground-motion time histories are needed for analyzing dynamic responses of nonlinear structural systems. However, the number of ground-motion data at design level is often limited. In order to analyze seismic performance of structures, ground-motion time histories need to be either selected from recorded strong-motion database or numerically simulated using stochastic approaches. In this paper, a detailed procedure to select proper acceleration time histories from the Next Generation Attenuation (NGA) database for several cities in Taiwan is presented. Target response spectra are initially determined based on a local ground-motion prediction equation under representative deterministic seismic hazard analyses. Then several suites of ground motions are selected for these cities using the Design Ground Motion Library (DGML), a recently proposed interactive ground-motion selection tool. The selected time histories are representatives of the regional seismic hazard and should be beneficial to earthquake studies when comprehensive seismic hazard assessments and site investigations are unavailable. Note that this method is also applicable to site-specific motion selections with the target spectra near the ground surface considering the site effect.

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The paper presents a simple procedure to select ground-motion time histories with target response spectra for deterministic seismic hazard analysis from the Next Generation Attenuation database using a recently proposed search engine. The recommended time histories can reasonably reflect region-specific seismic hazards and can be used as basic results that are serviceable for common engineering practice.
The paper presents a simple procedure to select ground-motion time histories with target...
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