OBSERVATION OF HISTORICAL MASONRY HOUSE BUILDINGS IN NEPAL BY MICRO-TREMOR MEASUREMENT

Abstract

This report describes the overseas field survey observing the ambient vibration characteristics of historical construction-style masonry buildings in Nepal. Most of these buildings are categorized as ‘non-engineered’ constructions without the proper structural design and adequate material production management. Micro-tremor measurement was conducted at the 13 historical masonry buildings in Nepal. The first natural frequencies of these buildings were evaluated and these values were compared with the ‘screening model analysis’ results. Moreover, vibration characteristics of every floor of selected 4 buildings and the influence of the out-of-plane vibrations of the masonry walls were also observed.