recent wind-induced disasters and full-scale storm...
TRANSCRIPT
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Recent Wind-induced Disasters andFull-Scale Storm Simulator to Minimize
Future Wind-Related DisastersYukio Tamura
[email protected] Coordinator, Win Engineering JURC,
Tokyo Polytechnic UniversityProfessor, School of Civil Engineering,
Beijing Jiaotong University
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Strong Wind Events
Monsoon Extra-tropical Cyclone Tropical Cyclone
(Typhoon, Hurricane, Cyclone) Tornado Downburst Dust Devil Gravity Wind (Katabatic Wind) etc.
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From the Past to the Future
The past is history.The future is a mystery.And this moment is a gift.That’s why it’s called thepresent.
The past is history.The future is a mystery.
And this moment is a gift.
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The past is history.
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Max Peak Gust > 60m/s
Wind-induced Damage to Tall Buildings
(Osaka, Japan, ASAHI NEWS PAPER
Shiten’noji 5-story Pagoda47.8m-high (Wooden Structure)
Typhoon MurotoSep. 21, 1934.
1934
Japan
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Wind-induced Damage to Tall Buildings
Mole Antonelliana (Turin, Italy, 1953)LA DOMENICA DEL CORRIERE
“The Mole Antonelliana collapses. An extraordinary wind storm occurred in Turin on May 23, 1953, breaking off the spire of the famous monument, and causing the collapse of a 45-meter length. The Mole Antonelliana was the tallest masonry building in Europe (167.5m)”
1953
Italy
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Cyclone Bhora
1970
November 7 – 13, 1970India, East Pakistan (Bangladesh, 1971)
Recorded 1min Mean:Pressure: Economic Loss:Fatalities:
57m/s966hPa
0.46B USD300,000-500,000
Bangladesh
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TYPHOON 7513, 1975 5TYPHOON 7513, 1975 51975
Max Recorded Peak Gust67.8m/s
Damage due to Typhoon 7513Hachijo-Island
Japan
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Tornado Disasters in Bangladesh
Total Fatalities: Total Number of
Tornados Recognized: Fatalities > 100 people : Fatalities > 500 peopleEx. Tangail Tornado 1996: Manikganj Tornado 1989:
10,766
19920 Tornados 7 Tornados
700 Fatalities1,170 Fatalities
Statistics in 36 years (1961 – 1996)300/year
Bangladesh
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And this moment is a gift.
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Pressures acting on a low-rise building
(WindTunnelTest,ShimizuCorporation)
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+
-
-+
(Vertical Section)
Increase of Wind Forces due to Openings
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-
-
+
-
-
(Plane Section)
Increase of Wind Forces due to Openings
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Yamaguchi Information and Art Center, Typhoon Songda in 2004
Completed in 2003, Japan2004
Japan
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(Kyodo)
Damage to Steel RoofSPring-8, Hyogo-ken, Japan
Typhoon Chaba , 2004
Dimples
Striations2004
DS
S
Japan
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・Wooden Truss・Glass FiberTeflon Lined(t = 0.8mm)
Membrane Damage to Dome StructureTyphoon Songda(2004)
2004
Japan
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Damage due to Typhoon TokageOctober 20, 2004
Hiroshima
EngineeredNon-engineered
2004
Japan
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Nobeoka and Saroma TornadosDebris Impact
2006
Nobeoka (Sep. 17, 2006)
Saroma(Nov. 7, 2006)
Japan
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Damage Chain- Impacts of Wind-borne Debris - Damage to Openings/Cladding/Components- Sudden Change in Internal Pressure
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(Uematsu, 1992)
Damage Correlation
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T. Hayashi (2009)
Cyclone Sidr, November 15, 2007, Bangladesh
Lowest Pressure: 944hPaPeak Gust: 62 - 66m/s
69m/s(BMD)
Fatalities/missing:Family Affected:People Affected:Houses Damaged:Crops Damaged (acre):Trees Destroyed:
Disaster Management Information CentreDisaster Management Bureau (DMB)Ministry of Food and Disaster Management
4,2342,064,0268,923,2591,518,9422,472,9444,065,316
2007
Bangladesh
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Temporary Shutdown of Nuclear Power Plants by Tornado
April 16, 2011, Dominion Virginia Power, Surry County, Virginia, USA : 2 reactors shut down
April 27, 2011, Browns Ferry Nuclear Plant, Athens, Alabama, USA : 3 reactors shut down
Knock-down of external power lines Back up generators kicked in at the plant
2011
USA
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B = 10.91m
D=
7.57
5mWeight of 2F RoofW = 81kN
ベランダ
Lift-up CriticalWind SpeedVLU = 77m/sVLU = 56m/s
Due to WindowPane Breakage
Blow-off of Second Floor Roof
Tsukuba Tornado (JMA F3)May 6, 2012
2012
Japan
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Koshigaya Tornado(F2)September 2, 2013(around 2:00pm)Blown-Off of a Light Weight House
Overturning W.S. 49m/sLift‐up W.S. 59m/s
More than 50m/s
2012
Japan
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Typhoon Haiyan (Yolanda in Philippines)
Lowest 895hPa
November 8, 2013Max 3s gust 57 m/s (observed)Max 3s gust 78 m/s (estimated)
Nov. 49:00
Nov. 1121:00
Death & Missing 7,986 NDRRMC (2014/01/14)
Nov. 8, 2013
2013
The Philippines
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Meteorological Information
JTWC: 105 m/s(3s Peak Gust)87.5m/s(1min Mean)
JMA:TyphoonPosition Table
895 hPa(2013/11/8)65 m/s(10min Mean)90 m/s(3s Peak Gust)
NDRRMC:SWB 76 m/s(3s Peak Gust)
Roxas City, Capiz:
78 m/s(3s Peak Gust)
57 m/s(3s Peak Gust)
Recorded Maximum Wind Speed and Lowest Pressure (PAGASA)
Guiuan, Samar: 910 hPa(2013/11/8/5:00)
Estimated from Pressures2013
The Philippines
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Meteorological Information
Early Morning, November 8, 2013
: 65~69 m/s (3s Peak Gust)
: All records were lost due to a 7m-high storm surge
Tacloban Airport Weather Station
Visual Observationby an Officer:
2013
The Philippines
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Bending Deformation of RebarsTanauan, Leyte
Evaluated Peak Gust: 65m/s~70m/s
2013
The Philippines
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Tanauan, LeyteTanauan School of Craftsmanship
Inside View
Damage to Roof
Negative Internal Pressure due to Jalousie Windows
External Pressure onGable-end Wall
+-Large Resultant Force
- Low strength of CHB wall - Insufficient connection to substructure
2013
The Philippines
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Completely Destroyed Buildings
Eastern Visayas State UniversityTanauan, Leyte
2013
The Philippines
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- Gable End Stiffener- Appropriate End Finishing
Debris Imprints
(by Japanese Government Aid)2013
Eastern Visayas State UniversityTanauan, Leyte
The Philippines
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Sagkahan National High School Palo, Leyte
End Stiffener
Almost no damageAppropriate end finishing
(by Japanese Government Aid)2013
The Philippines
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Basey, SamarBasey Central II Elementary School
Gable End Stiffener
Minor Damage
Right: Serious Damage to Roof
Debris Imprint
(by Japanese Government Aid)
2013
The Philippines
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Palo, LeyteLeyte Convention Center
Windward Frames
Beam Support Beam Support
Windward Frames
Collapse
Leeward Frames(High Stiffness)
2013
The Philippines
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Ventilating Openings
Windward Frame
Palo, LeyteLeyte Convention Center
2013
The Philippines
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EGS Contact Center
Windward Gable End
Palo, Leyte
2013
The Philippines
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Cyclone HudhudOctober 7 – 14, 2014
Pressure: 960hPa (Min. estimated 937hPa, JTWC)Wind Speed:55m/s (3s Gust, Indian Met. Dept.)
49m/s (3min mean)
2014
India
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9611 BillionUSD
・Andaman and Nicobar Islands ・Andhra Pradesh ・Odisha・Chhattisgarh ・Madhya Pradesh ・Uttar Pradesh ・Nepal
FatalitiesEconomic LossAffected Area
Damage to Buildings(1) Light Roofs(2) Glass Facades (3) Canopy Roofs of Gas-stations
Cyclone HudhudOctober 7 – 14, 2014
(Achal Mittal, CSIR-CBRI Roorkee)2014
India
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The Number of Fatalities due to Natural Hazards in Japan
(Disaster Prevention White Paper, Cabinet Office, Japan, 2008)
7,000
6,000
5,000
4,000
3,000
2,000
1,000
0 1950 1960 1970 1980 1990 2000 2011
Disaster Countermeasure Basic Act 1961
Tohyamaru Typhoon 1954Kanogawa Typhoon 1958Isewan Typhoon 1959
Makurazaki Typhoon 1945
Typhoon Kathleen 1947Fukui Earthquake 1948
Nankai Earthquake 1946
Great East Japan Earthquake 2011
19,100Kobe Earthquake 1995
Japan
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The Number of Fatalities1951-1990 (Fukumasa, 1992)
The
Num
ber
of F
atal
ities
Index of Typhoon Size and Intensity
←The Os
Japan
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Total Collapse Ratio of Wooden HousesBased on Hayashi & Mitsuta (1992) and Ishizaki et al.(1970)
T6618T7709
T7513T6816
T7705T5915
T9119
V 5
10 20 5030 70 100
100
10
1
0.1
0.01
0.001
%To
tal C
olla
pse
Rat
io o
f W
oode
n H
ouse
s
Peak Gust V (m/s)
Before 1980
Japan
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Rate of Damaged Residential Houses due to Typhoon Mireille (T9119)
General Insurance Rating Organization of Japan (1998)
Wind Speed (3s gust) Vp (m/s)
Damage RateR (%)
20 0.008630 0.180040 1.600050 8.700060 34.00000
(Cost of Damage > 200,000JPY)
Japan
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Reduction of the Number of Fatalities
Reasons
Improvement of Quality of Houses Development of Weather Forecast and Typhoon
Prediction Techniques(Weather Satellite, Computer Simulation) Development of Communication Technology such as
TV, Internet, Cell-phone→ Reduction of Fatalities
Development and Improvement of Disaster Prevention Measures
Development and Improvement of Infrastructures such as Rivers, Ports, Roads, etc.
Development of Wind Resistant Design Methods
Japan
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Toward More Realistic Experiments
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45
Win
d Sp
eed
Pres
sure
99 fans
(Cao et al.)
Unsteady Flow Simulation Control of Turbulence Scale
Active Multi-fans Wind TunnelMiyazaki University (1997)
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46
Active Multi-fans Climate Wind TunnelTokyo Polytechnic University (2010)
- Individually controllable 48 fans- Velocity, Temperature, Humidity
・Skin Temperature・Sweating・Brain Waves・Heart Rate・Human Comfort
Environmental Field
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Jules Verne Climatic Wind Tunnel (CSTB)
Rain 200mm/hSnow 200mm/h (10m×10m)
Max. Wind Speed 80m/s
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Jules Verne Climatic Wind Tunnel (CSTB)Wind Resistance・Full-scale Low-rise Houses・Roofing ・Walls
Aerodynamic characteristics・Train・Car
Combined Phenomena・Rain・Snow・Solar Heating
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Toward “Full-scale” Simulation
- 50y, 100y, 1000y-recurrence Very Rare Events : being under-controlled
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The Three Little Pigs’ Project, UWO
G. Kopp et al., 2008
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Rain!
Wall of Wind: University of Florida
F. Masters, K. Gurley and D. Prevatt, 2008
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Test ChamberPlan = 44.2m44.2mHeight = 18.2m
Wind Storm GeneratorInstitute for Business and Home Safety (IBHS)
Research Institute, Chester, SC, USA (2010)
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IBHS Research InstituteMax Wind Speed 53m/s: Category 3 Hurricane
F2 Tornado
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IBHS Research Institute・105 Axial Flow Fans- 350hp/each- Φ=1.68m・3 layers and 5 columns:
15 cells are independently controlled. ・30Mega Watt(100KV Transmission Line)
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(October 17, 2013)
Wind Engineering, Energy & Environment (WindEEE) DomeUniversity of Western Ontario, Canada
Inner Dome Diameter: 25mOuter Return Dome Diameter: 40mTornado-Like Flow: 6mEquivalent of F3 Fujita Scale Winds
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The future is a mystery.
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Global Warming?Climate Change?
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Power dissipation index PDI and Sea Surface Temperature SST
(K. Emanuel, Nature, Vol.436, 2005)
PDI :Power Dissipation IndexSST:Sea Surface TemperatureHadlSST:Hadley Center Sea Ice and SSTData Set
West Pacific Region
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Number of Typhoons,Close by,and Landfalls
JMA
1951-2013(63years)Number of Typhoons
Close byTyphoons
Landfalls
Japan
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Number of Winter Thunders
(Kobayashi, 2006)
1931-2001 in Japan
1940 1950 1960 1970 1980 1990 2000Year
5
43
21
0
Num
ber o
f Day
s w
ith L
ight
ning
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Reported Disasters in the World
500M
400M
300M
200M
100M
01900 1920 1940 1960 1980 2000
2008
500
400
300
100
200
0
500K
400K
300K
200K
100K
0
Number of Disasters
Affected
Fatalities
(EMDAT: Center for Research on the Epidemiology of Disasters)
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Total Amount of Reported Economic Losses by All Natural Disasters
Billion US$
USA
Japa
nC
hina
(Disaster Statistics, UN/ISDR)
208.
8817
2.36 (1991-2005)
364.
94
1. USA 2. Japan 3. China
: 24 BillionUSD/year: 14 BillionUSD/year: 12 BillionUSD/year
(2兆4千億円/年)(1兆4千億円/年)(1兆2千億円/年)
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Number of Devastating Disasters and Accompanying Economic Losses
Wind
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Performance validation of buildings and structures against rare devastating hazards:・Ambiguous estimation from incidentally happened damage marks ・like Groping in the Dark
↓ Accordingly・・・・Repetition of similar damage・Accumulation of tremendous human and economic losses
Repeating Disasters
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Conclusions of post disaster reports of 50years ago and the present are almost the same … ……….
・・・No
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Accurate evaluation of wind-resistant performance of buildings and structures
To Stop Repetition!
Especially, evaluation of performance of cladding and component systems
→ Investigation of fracture process of materials and systems
→ Full-scale tests under controlled environment
→ Full-scale Storm Simulator
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400 Million USD
- selected as one of the Most Important National Projects in 2014
by Science Council of Japan
Full-Scale Storm Simulator (FSSS) and Meteorological Hazards Science Park
(MHSP)Proposed by Y. Tamura
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Project Outline Full-Scale Storm Simulator (FSSS)
・Rain: 200mm/h・Snow: 200mm/h・Hail ・Fire ・Solar heating
◇ Reproduction of extreme events of several hundreds/thousands recurrence years
◇ Full-scale simulation under controlled environment・Highest level of Typhoon/tornado winds in Japan: 80m/s
・Simulation of multiple hazards
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・Workshops, Seminars, Conferences, …..
Project Outline Meteorological Hazards Science
Park (MHSP) ◇ Experience and learning of extremely
rare events◇ Knowledge dissemination on various
meteorological hazards◇ Understanding of actual conditions of
various disasters◇ Education for disaster risk reduction◇ Measures to cope with multiple hazards
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Various Structures, Building Systems, Building Materials, Claddings/Components, Steel Towers, Power Transmission Systems, Wind Power Generators, Photovoltaic Generators, Roof Mounted Facilities, Agricultural Facilities, Livestock Facilities, Fisheries Facilities, Transportation Systems, etc.
Outline of FSSS & MHSP
・160 Active‐control Fans・90Mega Watt
Full-scale reproduction of extremely rare events and capturing of phenomena
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Joint Usage System Promotion of Participation of Industries
Direct and instantaneous contribution and restoration of results to society
Development and performance check of: - Building systems and construction methods
- Building materials- Wind power generators- Photovoltaic power generator- Roof mounted products・・・・・・・・・・・・・・・・・
Tight collaboration with insurance industry
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Ripple Effects in Other Fields
Emergence of Several Decades- / Several Hundreds Years- Recurrence Rare Events
Relief from Reynolds Number Problem
Systematic Research and Envisage of Full-scale Rare Phenomena under Controlled Excitations
Investigation of Fracture Process Free from Indirect Understanding/
Observation based on Scaled Models
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Examples of Insurance Money Paid for Typhoon Damage in Japan- Typhoon Mireille in 1991: 5.7 Billion USD- 10 Landfall-Typhoons in 2004:
7.5 Billion USD
Social and Economic Value (1/3)
→Economic Losses due to Wind Disasters:3 ~ 4 Billion USD/Year
Insurance Money Paid for Wind Disasters in Japan: 1.4 Billion USD/Year
Economic Losses due to All Natural Disasters in Japan: 14 Billion USD/Year
(5千7百億円)
(7千5百億円)
(1千4百億円)
(1兆4千億円)
(3千~4千億円)
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Future Increase of Disaster Challenged due to Population Aging
→ Almost 80% of Economic Losses due to Natural Disasters in the World are caused by Extreme Winds and Accompanying Water Hazards
Social and Economic Value (2/3)
Recent Significant Increase of Devastating Wind Disasters and Floods
Recent Significant Increase of Economic Losses due to Natural Disasters
→ Future Acceleration of the Increasing Trend due to Global Warming and Climate Change
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2% Reduction of the Economic Losses by Full-scale Storm Simulator
→ 280 Million USD Profit every year in Japan
Social and Economic Value (3/3)
→ 10-year-Accumulation: 2.8 Billion USD Profit in Japan
2 or 3-Decade Delay→ 6 Billion – 9 Billion USD Loss in Japan
→ Immeasurable Value of the Facility
(280億円)
(2千8百億円)
(6千億円~9千億円)
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Devastating Disasters threaten Business Continuity Planning (BCP)
Urgency and Necessity (1/2)
Accumulation of Enormous Economic Losses due to Natural Disasters Provides Invisible Heavy Blow to Nation’s Activities Disaster Risk Reduction is International
Obligations to Realize BCP and Sound Economic Development
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Improvement of Vulnerability of Buildings, Structures, Power Transmission Systems, Wind/Solar Power Generation Systems, Agricultural/ Systems, Livestock Systems, Fishing Systems, and so on to Meteorological Hazards
Urgency and Necessity (2/2)
→ Nation’s Fundamental Aspects to Maintain and to Develop Economic and Social Systems
→ Immeasurable Contributions of the Full-scale Storm Simulator
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Raising Fire Insurance Premium Asahi Newspaper, FNN News, etc. October 23, 2013
3 – 5% Raising of Fire Insurance Premium for Houses in 2015
..... because the amount of insurance money paid for recent disasters such as typhoons, heavy rains, tornados has increased and the income and expenditure balance of insurance companies has deteriorated…………
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The future should notbe a mystery!