Concrete CoalitionConcrete Coalition Toolkit

Concrete Coalition

Earthquake Engineering Research Institute (EERI)

Pacific Earthquake Engineering Research Center (PEER)

Applied Technology Council (ATC)

Hildebrand Hall

Olive View Hospital

Kaiser Permanente

St. John’s Hospital

Barrington Office Building

Van Nuys Holiday Inn

Kobe - January 16,1995

Consequences of earthquakes for the US

Event Deaths Economic Loss

Previous 1989 Loma Prieta 62 $10 billion

1994 Northridge 57 $20 billion

1995 Kobe Japan >5,500 $250 billion

$200 billion2,000 – 6,000

Scenario Newport-Inglewood Fault (M7)

$200 billion3,000 – 8,000

Repeat of 1906 San Francisco

$33 billion>1,600Seattle Fault Scenario (M6.7)

$100 billion>4,000Hayward Fault Scenario (M7)Projected

$250 billion>5,5001995 Kobe Japan

$20 billion571994 Northridge

$10 billion621989 Loma PrietaPrevious

Economic LossDeathsEvent

Consequences of earthquakes for the US

11

Algeria

Armenia

Colombia

India

TurkeyPhilippines

Mexico

Japan

U.S.A.

Chances of Dying if a Major Earthquake Occurs

San Francisco 1 in 1000Istanbul 1 in 50

How many killers are there?

“50% of the casualties are coming from 5% of the buildings.” Kircher et al., 2006

OperationalHeavyCollapse

Mexico City, 1985

Erzincan, 19920

20

40

60

80

100

Percentage

Kobe, 1995

Luzon, 1990

Otani (1999)

The “Challenge”

Some concrete buildings constructed before the 1970’s might be dangerous.

Where are they ? Which ones are dangerous ?

The “Next” Challenge

Retrofit is expensiveHow can we do better to reduce costs ?

The Challenge of “Reality”

These buildings do not exist in a seismic vacuum.

What are the economic and social implications?

How can we develop community retrofit programs the represent the interests of all stakeholders?

Initial California OES Effort Local representatives gather existing information/data.

◦ Inventories◦ Design and construction history◦ Ordinances and programs◦ Case histories

Assemble into accessible database◦ Research◦ Program development◦ Public policy credibility

Concrete Coalition

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www.concretecoalition.org