Seismic Performance Analysis of Meru (Bali Pagoda): Preliminary Study

Abstract

This study evaluates the earthquake-resistant performance of Meru, specifically level eleven, located in the Ulun Danu Batur Kintamani Temple Area, Bali Province. Despite the upper layer’s construction with wooden frames and panels, and the base layer’s masonry walls, Meru has remained remarkably undamaged by earthquakes since its establishment in 1968. The analysis encompasses Meru’s architectural forms, structural systems, building materials, and dynamic response to seismic activity. A 3D finite element model and nonlinear time history dynamic analysis methods were employed to investigate its earthquake resistance. The findings indicate that Meru can withstand credible maximum seismicity for a return period of 2500 years, and the natural period and modes of Meru have been determined. This study serves as an initial investigation into predicting and monitoring the behavior of Meru structures during earthquakes. Future research could involve experimental analysis of individual components and the overall structure to further validate the analytical model. As a result, this study offers significant insights into the upkeep and preservation of traditional Balinese historic buildings in an earthquake-prone area.