ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W2, 243-250, 2017
https://doi.org/10.5194/isprs-annals-IV-2-W2-243-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
 
17 Aug 2017
DIGITAL RECORDING AND NON-DESTRUCTIVE TECHNIQUES FOR THE UNDERSTANDING OF STRUCTURAL PERFORMANCE FOR REHABILITATING HISTORIC STRUCTURES AT THE KATHMANDU VALLEY AFTER GORKHA EARTHQUAKE 2015
S. Shrestha1, M. Reina Ortiz1, M. Gutland2, R. Napolitano3, I. M. Morris3, M. Santana Quintero4, J. Erochko2, S. Kawan5, R. G. Shrestha6, P. Awal7, S. Suwal8, S. Duwal8, and D. K. Maharjan9 1Carleton Immersive Media Studio (CIMS), Carleton University, 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada
2Department of Civil and Env. Engineering, Carleton University, 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada
3Department of Civil and Env. Engineering, Princeton University, E-208 E-Quad Princeton, NJ 08544, USA
4Carleton Immersive Media Studio (CIMS), 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada
5Nepal Engineering College
6Bhaktapur Municipality
7UNESCO Kathmandu Office
8Khwopa Engineering College
9National Society of Earthquake Technology
Keywords: IT Documentation, Risk Preparedness, Nepal, Built Heritage, Natural Hazards, Capacity-Building, Digital Workflows for Heritage Conservation, 3D Imaging, Georadar, Photogrammetry, Electronic Distance Measurements (EDM), Computer-Aided Drawing. Abstract. On 25 April 2015, the Gorkha earthquake of magnitude 7.8, severely damaged the cultural heritage sites of Nepal. In particular, the seven monument zones of the Kathmandu Valley World Heritage Site suffered extensive damage. Out of 195 surveyed monuments, 38 have completely collapsed and 157 partially damaged (DoA, 2015). In particular, the world historic city of Bhaktapur was heavily affected by the earthquake. There is, in general, a lack of knowledge regarding the traditional construction technology used in many of the most important temple monuments in Bhaktapur. To address this limitation and to assist in reconstruction and rehabilitation of the area, this study documents the existing condition of different historic structures in the Kathmandu Valley. In particular, the Nyatapola Temple is studied in detail. To record and document the condition of this temple, a combination of laser scanning and terrestrial and aerial photogrammetry are used. By also including evaluation of the temple and its supporting plinth structure using non-destructive evaluation techniques like geo-radar and micro-tremor dynamic analysis, this study will form the basis of a structural analysis study to assess the anticipated future seismic performance of the Nyatapola Temple.
Conference paper (PDF, 2138 KB)


Citation: Shrestha, S., Reina Ortiz, M., Gutland, M., Napolitano, R., Morris, I. M., Santana Quintero, M., Erochko, J., Kawan, S., Shrestha, R. G., Awal, P., Suwal, S., Duwal, S., and Maharjan, D. K.: DIGITAL RECORDING AND NON-DESTRUCTIVE TECHNIQUES FOR THE UNDERSTANDING OF STRUCTURAL PERFORMANCE FOR REHABILITATING HISTORIC STRUCTURES AT THE KATHMANDU VALLEY AFTER GORKHA EARTHQUAKE 2015, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., IV-2/W2, 243-250, https://doi.org/10.5194/isprs-annals-IV-2-W2-243-2017, 2017.

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