System Identification and Finite Element Modelling of Damaged Bal Mandir Monument in Kathmandu After the 2015 Gorkha Earthquake

Rajesh Rupakhety*, Dipendra Gautam, Rabindra Adhikari, Pratyush Jha, Lalit Bhatt, Rewati Baruwal

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationProtection of Historical Constructions - Proceedings of PROHITECH 2021
EditorsIoannis Vayas, Federico M. Mazzolani
PublisherSpringer Science and Business Media Deutschland GmbH
Pages222-231
Number of pages10
ISBN (Print)9783030907877
DOIs
Publication statusPublished - 4 Dec 2021
Event4th International Conference on Protection of Historical Constructions, PROHITECH 2021 - Athens, Greece
Duration: 25 Oct 202127 Oct 2021

Publication series

NameLecture Notes in Civil Engineering
Volume209 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference4th International Conference on Protection of Historical Constructions, PROHITECH 2021
Country/TerritoryGreece
CityAthens
Period25/10/2127/10/21

Bibliographical note

Funding Information:
Acknowledgements. Authors acknowledge the support by Ram Udar Yadav, Gangesh Joshi, Binay Sah, Gokarna Motra, and others for supports. Rajesh Rupakhety acknowledges financial support from the University of Iceland Research Fund.

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

Other keywords

  • Ambient vibration
  • Finite element modeling
  • Gorkha earthquake
  • Greco-Roman monument
  • System identification

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