June 2, 2011
Mir Mustafizur Rahman
Private Secretary to Mayor
Dhaka City Corporation
Location : Latitude from 20 degree 34' to 26
degree 38' north. Longitude from 88 degree 01'
to 92 degree 41' east.
» Estimated population 150 million.
Area : » Total: 144,000 sq km.
» Land: 133,910 sq km.
Boundary : Bounded by India from the north, east
» Water: 10,090 sq km.
and west, Myanmar (Burma) from the southGDP Growth rate : 6.21% (2007-08)
east and the Bay of Bengal from the south.
Population Growth rate : 2.02%
Rainfall : Lowest 47" and highest 136". Climate : Tropical; cool, dry winter (October to
March); hot, humid summer (March to June);
Education : Literacy 62.49%
cool, rainy monsoon (June to October).
Dhaka was established as capital
during Mogol period in 1608. Till
1717, Dhaka was capital of
Bangla, Bihar & Urissha. In 1905,
Dhaka became capital of East
Bengal & Asam. In 1947 Dhaka
became the provincial capital of
East Pakistan. In 1971, Dhaka
became capital of Bangladesh.
Dhaka in 1800
East Bengal and
Chokbazar in 1908
Dhaka in 2011
Population of Dhaka is about 12 million
Area of Dhaka City Corporation 360 sq. km.
Annual population growth rate : about 6% .
Hazards of Bangladesh
Disaster Characteristic in Bangladesh : Flood, Cyclone, Wind storm,
droughts, Earthquake, Landslide, River erosion, Tsunami, Salinity, Water
lodging, epidemic etc.
Cattle death by Cyclone
Hazards of Bangladesh (Cont.)
Bangladesh -Earthquake Risk
Fire in Slum
forest after Cyclone
6 story building collapsed- died 21, 25/02/2006
Shakhari Bazar-June 2004, died 19
Begun Bari- 1 June 2010, died 25
collapsed nine-story garment
factory near Dhaka April 12,
2005. 73 bodies in the ruins of
the nine-storey building.
Around 100 people were
26 February, 2007, fire in a 11 storied building, died 2
Feb. 2, 2006. thousands of
December 15, 2007, slum – south of
13 march. 2009, fire in a high rise commercial
building, died 5
November 21, 2008, Begunbari slum.
June 3, 2010, Nimtoli, Dhaka, died 123.
DCC conducted six day workshop on "Disaster management in Dhaka city”, 120 (One Hundred
Twenty) ward commissioners, 40 representatives from different NGOs, 10 imams of different
mosque, 20 officials of Fire Services Civil Defense and 20 other peoples attended.
Dhaka City Corporation in association with Disaster Management Bureau arranged a day-long
training workshop on “search and rescue of earthquake disaster” for the word commissioners,
DCC Officials, journalists and volunteers.
DCC take active role in the “Mock Exercise” at Dupkhola Play Ground, organised by Disaster
DCC took part in a Rally organised by Comprehensive Disaster Management Program (CDMP) to
make awareness on Earth Quake among the city dwellers.
DCC has taken part in Marine Air Ground Task Force Technical Warfare Simulation (MTWS)
Command Post Exercise (CPX) “Exercise Durjoge Durnibar 2008”.
DCC identified more than 500 risky buildings in Socio-economic survey.
“Disaster Management Volunteer Group” in every ward is under process.
Imposed “National Building Code” for construction every building.
GIS based contingency plan, vulnerable assessment & rescue plan.
Workshop on “Use of Earthquake Risk Maps and Validation of Scenario Based
Earthquake Contingency Plan for Dhaka City” help on 24/08/09 at Nagar Bhaban
Workshop on “Climate Change & Disaster Management” was held in Zone-1 office,
DCC on 12/03/2010.
“Technical survey for identification of
vulnerable and risky 113 buildings in heritage
and non-heritage areas of Dhaka City”
GENERAL STATISTICS: (Number of
Relation between Day and Night Stay by People
Biren Bosh Street
APPARENT QUALITY OF BUILDINGS
Biren Bosh Street
Correlation plot Building Age and Structural Type
Biren Bosh Street
Risk Group VS. No. of Storey
TOR of the project
Out come of the vulnerability analysis and
Methodology of structural assessment
Different Levels of Survey
Retrofitting and renovation decision making
Available Methodologies for
1. Rapid Visual Screening – (RVS) FEMA154, FEMA155
2. FEMA 310 – Detailed structural Analysis
3. IITK- GSDMA ‘3 Tier’ vulnerability assessment Checklist
4. Turkish Vulnerability assessment methodology
5. Rapid Screening of Masonry building – Prof. Arya
6. Old Masonry Building Indexes – J. Rouqe
Other Ref and standards1. BNBC 2006 Seismic Code
2. Indian Standard Seismic Code, IS-1893
3. ASTM Material Testing
DESIGN OF THE ASSESSMENT
LEVEL 3 SURVEY
LEVEL 1 & 2 SURVEY
DEFECT AND EXTENT
SAMPLE FROM SITES
Engineering Survey work
Structural Crack in URM building
Diaphragm Discontinuity (Courtyard)
Cracks in infill wall
Cracks in Structural Units of URM
Deterioration of Masonry Units
Narrow Stair Case
Nonstructural Vulnerable components
Crack in Arch type lintel
Vulnerable supports on ground floor
Settlement of inclined brick
FORCE BALANCE IN
Damage to stair way entrance
TEMPORARY RETROFITTING WITH
Crack in arch lintel
Poor condition of Electrical system
Side view of the tiles floor
Floor Construction style
• Water bodies, Water hydrant
• Emergency Responses
• Fire Service
• Rescue activities
• Disaster supply kits
• Medical services
• Evacuation center (Temporary Shelter)
• Water & Food Delivery
• Temporary housing
• Recovery Plan (Infrastructure & Housing Reconstruction, Urban Planning,
Economic Vitalization, Life Recovery)
• Land Readjustment
• Community participation
• Safety precautions, Awareness, School Level Education
Removal of the extended portion on old
structures and restraining the owner from
further construction on old structures
Retrofitting of the failed masonry arches
Supporting Heavy Overhang with Columns
Prepare Action Plan for City Corporation
Disaster Management Committee (CCDMC)
where Mayor is the Chairperson of the
Experts say that 72 thousand buildings will be distorted if earthquake
occurs with rector scale 6.6 or 7 in Dhaka. 70 thousand people will die if it
happens at night. 800 educational institutes will be collapsed.
Earthquake can’t predict and can’t prevent. By managing we can
minimize our loses. Pre-earthquake phase, preparedness, mitigation and
prevention are concepts to work on. Post-disaster, immediate rescue and
relief measures including temporary sheltering soon after an earthquake
until about 3 months later and re-construction and re-habilitation
measures for a period of about six months to three years need to follow.
To summarize, the most effective measures of risk reduction are predisaster mitigation, preparedness and preventive measures to reduce
vulnerability and expeditious, effective rescue and relief actions
immediately after the occurrence of the earthquake.
It is not the earthquake rather it is the building that kills people.
Disaster preparedness for Safer Communities Safer Communities for Sustainable Development