Seismic Vulnerability Assessment of Existing Building Stocks at Chandgaon in Chittagong City, Bangladesh
American Journal of Civil Engineering
Volume 3, Issue 1, January 2015, Pages: 1-8
Received: Sep. 17, 2014; Accepted: Dec. 21, 2014; Published: Jan. 15, 2015
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Authors
Atik Sarraz, Department of Civil Engineering, University of Information Technology and Sciences (UITS), Chittagong, Bangladesh
Md. Khorshed Ali, Department of Civil Engineering, University of Information Technology and Sciences (UITS), Chittagong, Bangladesh
Debesh Chandra Das, Department of Civil Engineering, University of Information Technology and Sciences (UITS), Chittagong, Bangladesh
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Abstract
The draft of Bangladesh National Building Code (BNBC)-2012 has been updated the seismic coefficient of 0.28g (with Zone III) for Chittagong region, which is larger than the previous of 0.15g (with Zone II). Chittagong is the largest port city and commercial capital of Bangladesh, which has many development activities as like of planned residential areas. Although BNBC code is up-to-date with earthquake provisions since 1993 with interpreting several new clauses and provisions, but in case of pre-code revision structures it is quite unsafe. Thus it is quite impossible to reduce earthquake damage without considering the safety of pre-code revision structures. In this regards earthquake vulnerability of Chandgaon Residential Area(R/A) has been assessed on the basis of potential structural vulnerability of more than 300 buildings. Initial results reveal that there have large varieties of construction practices, however, predominantly RCC structures were found. RVS score of these structures reveal that in general buildings are of minimum quality and further evaluation and strengthening of buildings is recommended. Walk down evaluation encountered several factors which were responsible for comparatively lower range of vulnerability scores.
Keywords
Chandgaon, BNBC, RVS, FEMA, Soft Story, Short Column
To cite this article
Atik Sarraz, Md. Khorshed Ali, Debesh Chandra Das, Seismic Vulnerability Assessment of Existing Building Stocks at Chandgaon in Chittagong City, Bangladesh, American Journal of Civil Engineering. Vol. 3, No. 1, 2015, pp. 1-8. doi: 10.11648/j.ajce.20150301.11
References
[1]
BNBC 2006, “Bangladesh National Building Code”, House and Building Research Institute, Dhaka, Bangladesh (http://buildingcode.gov.bd/), 2006.
[2]
Sella, G. F., T. H. Dixon, and A. Mao, “REVEL: A model for recent plate velocities from space geodesy, J. Geophys. Res., 107(B4), 2081, doi: 10.1029/2000JB000033, 2002.
[3]
Bilham, R.,“Earthquakes in India and the Himalaya: tectonics, geodesy and history”, Annals of Geophysics, Vol. 47, N. 2/3, April/June 2004.
[4]
Steckler, M. S., Akhter, S. H., Seeber, L. Collision of the Ganges-Brahmaputra Delta with the Burma Arc: Implications for earthquake hazard. Earth and Planetary Science Letters, 273, 367-378. doi 10.1016/j.epsl.2008.07.009, 2008.
[5]
Bilham, R., Gaur, V.K., and Molnar, P., Himalayan seismic hazard: Science, v. 293, p. 1442–1444, doi: 10.1126/science.1062584, 2001.
[6]
Mukhopadhyay, B., S. Dasgupta and S. Dasgupta, Clustering of earthquake events in the Himalaya – Its relevance to regional tectonic set-up. Gondwana Research 7(4): 1242-1247, 2004.
[7]
Mullick, M., F. Riguzzi and D. Mukhopadhyay, Estimates of motion and strain rates across active faults in the frontal part of eastern Himalays in North Bengal from GPS measurements. Terra Nova 21(5): 410-415, 2009.
[8]
Bolt B.A., Fault Zone Analysis for Seismic Hazards, Journal of Seismology, Vol. 1, No. 3, 1987.
[9]
Al-Hussaini, T.M., Hossain, T.R. and Al-Noman, M.N., “Proposed Changes to the Geotechnical Earthquake Engineering Provisions of the Bangladesh National Building Code”, Geotechnical Engineering Journal of the SEAGS & AGSSEA, Vol. 43, No.2, 1-7 (www.seags.ait.ac.th), 2012.
[10]
Ansary M.A. and Dhar A. S., “Earthquake Vulnerability Assessment of Cox's Bazar District”, A report to CDMP, Department of Civil Engineering, BUET, Bangladesh, 2009.
[11]
M. J. Alam, A.R. Khan and A. Paul, “Seismic Vulnerability Assessment of Existing RC Buildings in GIS Environment”, Online Proc. of Fourteenth World Conference on Earthquake Engineering (WCEE), Beijing, China (http://www.nicee.org/ wcee/index2.php), October 12-17, 2008.
[12]
CDMP (Comprehensive Disaster Management Programme), “Earthquake Risk Assessment of Dhaka, Chittagong and Sylhet City Corporation Area”, General report, Table A-8, Appendix B, pp. 113. Ministry of Food and Disaster Management, Govt. of Bangladesh, June 2009.
[13]
BBS (Bangladesh Bureau of Statistics), “Bangladesh Population Census 2011”, vol-3, Urban Area Report, Chittagong: Statistics Division, Ministry of Planning, Govt. of Bangladesh, 2011.
[14]
FEMA 154, “A Hand Book on Rapid Visual Screening of Buildings for Potential Seismic Hazards”, Handbook, Federal Emergency Management Agency, Washington DC, USA, 2002.
[15]
Sucuoglu, H. and Yazgan, U., “Simple Survey Procedures for Seismic Risk Assessment in Urban Building Stocks”, Seismic Assessment and Rehabilitation of Existing Buildings, NATO Science Series, IV/29, pp. 97-118, 2003.
[16]
Sudhir K Jain, Keya Mitra, Praseeda KI, “A Proposed Rapid Visual Screening Procedure for Seismic Evaluation of Buildings in India”, January, 2004.
[17]
Srikanth T., Kumar R. P., Singh, A. P., Rastogi, B. and Kumar, S., “Earthquake Vulnerability Assessment of Existing Buildings in Gandhidham and Adipur Cities Kachchh, Gujarat (India)”, European Journal of Scientific Research , Vol.41 No.3, pp. 336-353 (http://www.eurojournals.com/ejsr.html), 2010.
[18]
Ozcebe, G.,Yucemen, M. S., Aydogan, V., and A. Yakut, “Preliminary Seismic Vulnerability Assessment of Existing Reinforced Concrete Buildings in Turkey- Part I: Statistical Model Based on Structural Characteristics”, Seismic Assessment and Rehabilitation of Existing Buildings, NATO, Science Series IV/29, pp. 29-42, 2003.
[19]
Euro Code 8, “Design of structures for earthquake resistance-Part-1.”, European Standard PREN 1998–1. Draft no. 4. Brussels: European Committee for Standardization, 2001.
[20]
www.cdmp.org.bd/modules.php?name=Publications&download=13_Time_Predictable_Fault_Modeling__of_BD.pdf
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