Abstract
Bal Mandir is a Palladian style three-storied monument located in Kathmandu, Nepal. The monument was damaged by the 2015 Gorkha earthquake and part of the aggregate building was declared inoperable after post-earthquake damage assessment. Bal Mandir serves an orphanage and educational center for the orphans and homeless children; seismic performance of the monument is a crucial concern. Aiming to quantify the damage level of the aggregate masonry building, field reconnaissance was performed in preliminary to detailed level. Furthermore, ambient vibration tests were carried out to perform system identification of the building. The results of system identification were compared with that of finite element analysis and the results show that damage has caused detectable change in the dynamic properties of the structure. This paper reports some representative damage scenarios and the results of the finite element analysis as well system identification.
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