Dynamic Responses of East Temple Pagoda of Subashi Temple under Seismic Loads

Abstract: To better protect earthen heritage sites, software FLAC3D was used to analyze the seismic response of the east temple pagoda of the Subashi Temple, and the seismic-induced displacement and stresses of the pagoda and the acceleration amplification factor and Fourier spectra of seismic waves were investigated. The results show that the pagoda produces a permanent displacement and has a tensile stress concentration under seismic loads. The seismic acceleration is weaken below the ground but amplified above the ground. The amplification factor of seismic acceleration raises with the increase of height away from the ground surface and reaches to 2.5 at the top of the pagoda. Both foundation soil and the pagoda top have a filter function to high-frequency waves, and low-frequency waves are amplified at the top of the pagoda.