Abstract
The responses and damages of cold-formed steel (CFS) structures under near-fault ground motions are not clear currently, which are important for seismic design of CFS structures. This paper investigates the effects of near-fault ground motions on a 6-story CFS building. Three groups of records were chosen from the same events and different stations. The mean damage index of the first-story wall increases by 6.9∼18.7% and 34.3∼53.4% under the near-fault (no-pulse) and near-fault (pulse-like) records, respectively. The effects of near-fault earthquakes should be considered, and the Park-Ang seismic damage index is more appropriate for the seismic design of CFS buildings.
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