Effect of Axial Force Fluctuation in Supporting Columns on Earthquake Response of Traditional Wooden Japanese Temple

Abstract

This study examines the effect of axial force fluctuation in supporting columns of a traditional wooden temple on the seismic response of the structure. The main structure and high wooden stage of the Kiyomizu Temple, a Japanese national treasure located in Kyoto, were reconstructed in 1633 following a fire. The temple was modeled numerically for three-dimensional inelastic earthquake response analysis. An inelastic vertical spring was set at the base of each column to represent uplift during an earthquake, coupled with a horizontal spring set to represent variable friction corresponding to the varying axial force of the column. The results reveal that axial force fluctuation has little effect on the maximum seismic response of the structure. However, this effect does influence the residual displacement of each column, particularly near the perimeter of the structure.

Seismic assessment of Japanese traditional wooden structure by dynamic interaction numerical analysis of surrounding ground

“…For more details of these properties, see (Suzuki et al 2007). The appropriateness of the model was confirmed by comparing the numerical natural frequencies of the analytical model and the microtremor measurements by Suzuki et al (2007). The first natural frequencies were 1.6 Hz and 1.8 Hz in the North-South direction, and the second were 1.7 Hz and 1.9 Hz in the East-West direction, respectively.…”

“…The nonlinear spring properties are shown in Table 1. For more details of these properties, see (Suzuki et al 2007). The appropriateness of the model was confirmed by comparing the numerical natural frequencies of the analytical model and the microtremor measurements by Suzuki et al (2007).…”

“…Fujita et al (2004) discussed the vibration characteristics of a newly built traditional timber pagoda based on the results of earthquake monitoring and micro tremor measurements. Fujita et al (2008) conducted analyses for shaking table tests conducted for a traditional timber pagoda in 2004-2006. Mori et al (2007 showed the effect of axial force fluctuation of supporting columns for the seismic performance of the main wooden building of this study by conducting three-dimensional nonlinear earthquake response analyses.…”

“…5). Suzuki et al (2007) conducted a field investigation, and clarified the profiles, section size of the support columns, clay walls, slabs and penetrating beams, and plain and side view. The plain and section views are shown in Figs.…”

“…Mori et al (2007 showed the effect of axial force fluctuation of supporting columns for the seismic performance of the main wooden building of this study by conducting three-dimensional nonlinear earthquake response analyses. Suzuki et al (2007) examined the effect of a stage on the earthquake response of the traditional structure and showed that non-rigid floor assumption affects the response of the stage of the structure.…”