Thesis Proposal

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An Undertaking of Bhaktapur Municipality KHWOPA ENGINEERING COLLEGE PURBANCHAL UNIVERSITY THESIS PROPOSAL ON Seismic vulnerability Assessment of Traditional Buildings Post Graduate Department of Earthquake Engineering Presented by: Shyam Sundar Basukala (067/ME/10) April 2012

Transcript of Thesis Proposal

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An Undertaking of Bhaktapur Municipality

KHWOPA ENGINEERING COLLEGEPURBANCHAL UNIVERSITY

THESIS PROPOSALON

Seismic vulnerability Assessment of Traditional Buildings

Post Graduate Department of Earthquake Engineering

Presented by:

Shyam Sundar Basukala

(067/ME/10)

April 2012

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Introduction:

• Earthquake is destructive natural disasters

• Nepal is earthquake prone area

• Traditional building stock in Bhaktapur city is of

Masonry structures (with mud and Timber floor)

• Seismic vulnerability (measures of seismic strength or

capacity of buildings)

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Why seismic vulnerability assessment?

• Seismic vulnerability is needed for

– to understand the current condition of the structures

– To reduce the damage of buildings during earthquake

– To determine method of strengthening

– for the allocation of rescue forces and equipment to

vulnerable area

– Assessment is not done yet in selected area

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Vulnerability assessment methods:

• Seismic vulnerability assessment methods as per their

requirement in content to their country

– Rapid Visual Screening of Seismically Hazardous Building

(FEMA 154)

– HAZUS (HAZARD US)

– Risk Assessment Tools for Diagnosis of Urban Area against

Seismic Disasters (RADIUS)

– Seismic Vulnerability Assessment according to EMS-98

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Continue………

• In context of Nepal the above methods have some

deficiencies

– Difference in material and technique of building construction

– Traditional building topology

– There is not its own assessment method in Nepal

– Relation between these above methods are not workout

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Literature Review:

• G.M. Calvi, R. Pinho, G. Magenes, J.J. Bommer, L.F. Restrepo-Vélez and

H. Crowley "DEVELOPMENT OF SEISMIC VULNERABILITY ASSESSMENT METHODOLOGIES OVER THE PAST 30 YEARS"

The seismic vulnerability of a structure can be described as its susceptibility to damage by ground shaking given level of damage to a given building type due to a scenario earthquake. The various methods for vulnerability assessment that have been proposed in the past for use in loss estimation can be divided into two main categories: empirical or analytical, both of which can be used in hybrid.

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Continue………• Md. J. B. Alam, M. A. Ansary, M. S. Rahman, Z. Uddin Ahmed, A. B. A.

Imtiaz and M. M. Hossain

ASSESSMENT OF VULNERABILITY OF CRITICAL INFRASTRUCTURES DUE TO EARTHQUAKE IN SYLHET CITY AND MANAGEMENT

In this paper, results are presented on the assessment of seismic vulnerability of buildings in Zone III of Sylhet city, Bangladesh. This study was based on a methodology for earthquake vulnerability analysis using Rapid Visual Screening (RVS) and a structural scoring system (S value >2 indicating Seismic safety). The survey showed that most of the buildings studied in the city fell in the category of seismically moderate to high risk range (S value of 2 or less). Criteria for construction of seismically safe buildings have been proposed.

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Objective:

• Prepare inventory of buildings stock of a specific

area of Bhaktapur city.

• Determine the topology of buildings.

• Determination of materials conditions (damage state).

• To assess seismic performance of building.

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Continue………

• To determine the seismic vulnerability index of

buildings in research area.

• To find out the appropriate methods of vulnerability

assessment in context of Nepal.

• Preparation of base map in GIS with Vulnerability

of buildings

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Methodology:

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Proposed Planning:

Activities2069

Bishak Jestha Ashad Sharwan Bhadra Asoj

Literature Review     

Data collection and Selection of building        

Analytical modeling       

Result interpretation         

Report preparation         

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References:

• FEMA 178-1992, (1992), “NEHRP Handbook for the Seismic Evaluation of Existing Buildings”,Building Seismic Safety Council, Washington, DC.

• Earthquake Vulnerability Assessment of Existing Buildings in Gandhidham and Adipur Cities Kachchh, Gujarat (India)

Terala Srikanth, Ramancharla Pradeep Kumar, Ajay Pratap Singh, Bal Krishna Rastogi, Santosh Kumar.

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Thank You