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“...KATHMANDU VALLEY AFTER GORKHA EARTHQUAKE 2015
S. Shrestha3’*, M. Reina Ortiz3, M. Gutlandb, R. Napolitanoc, I. M. Morrisc, M. Santana Quinterod, J. Erochkob, S. Kawane, R.G. Shresthaf, P.Awal8, S. Suwal h, S. Duwalh, D.K. Maharjan1
3 Carleton Immersive Media Studio (CIMS), Carleton University, 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada, sujan. shrestha@carleton. ca
b Department of Civil and Env. Engineering, Carleton University, 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada, Jeffrey. Erochko@carlet on. ca
c Department of Civil and Env. Engineering, Princeton University, E-208 E-Quad Princeton, NJ 08544, USA, rkn2@princeton.edu, imorris@princeton. edu
d Carleton Immersive Media Studio (CIMS), 1125 Colonel by drive, Ottawa, On, K1S 5B6 Canada, Mario.santana@carleton.ca eNepal Engineering College fBhaktapur Municipality gUNESCO Kathmandu Office h Khwopa Engineering College ‘National Society of Earthquake Technology
COMMISSION II
KEYWORDS: IT Documentation, Risk Preparedness, Nepal,...”
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“...well as technical and formal features identified during the course of the work, should be included. This record should be placed in archives of a public institution and made available to research workers.”
In the case of the Kathmandu Valley, recording and documentation of the cultural heritage are as important as any other phase of conservation, from the repair, to alteration, to intervention work. Without documentation, important existing character-defining elements of the structures, in both a visual and structural sense, may be lost during restoration. It is particularly important to document these buildings to both record them in the case of future disasters and also to be able to evaluate their performance in the previous earthquake and the likely performance in the future.
1.3 Part B: Structural Investigation
Historic building investigation is needed for acquisition of data related to material properties, construction techniques, hidden voids, inclusions, masonry and timber decay, ...”
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“...suspected to differ in construction technology from other temple plinths in the region. Because of this, the seismic influence of the plinth on the temple superstructure is not clear. Since there are many other monuments in the area that collapsed during the earthquake that also sits atop high-rise plinths, a better understanding of this particular plinth design and behaviour will contribute towards the conservation and restoration of those totally collapsed monuments.
In general, the workflow for carrying out this research project is divided into two parts as described previously: documentation and structural investigation. Many of these workflows were also applied to the evaluations of the other sites.
For recording and documentation of Nyatapola Temple, multiple digital tools were used. Recent developments in computer and information technologies have resulted in a wider range of options to document heritage structures with high precision.
The digital workflow used for field work was as...”
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“...be used for further structural investigation of the seismic response of the temple.
Following the collection of geometric, morphological, damage, and other information on structural elements, a finite element analysis or combined discrete element analysis will be conducted to evaluate the seismic behaviour of the Nyatapola Temple in a separate study.
4. SCOPE OF ADDITIONAL WORK
In addition to the documentation and evaluation of Nyatapola Temple, the Carleton University - Princeton University team worked in collaboration with local Nepali colleagues to perform the following additional documentation and analysis work:
At Bhaktapur Durbar Square:
• Vatsala Temple - Georadar evaluation of the plinth structure to confirm excavation results, determine inner sanctum construction, and use this information to validate survey parameters (velocity and dielectric constant) and construction material reflections.
• Big Bell - Georadar evaluation of the supporting structure and photogrammetry.
At Dattatreya...”
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