Upload
others
View
4
Download
0
Embed Size (px)
Citation preview
California’s Next
are you prepared?
California Seismic Safety Commission
a guide for decision-makersa guide for decision-makers
California’s Next
are you prepared?
earthearthquakequake
3
when they happen, managerswill be held accountable!
• Death and injuries to staff and the public• Collapse of buildings and other facilities• Disruption of emergency response• Damage from fire, flooding, or hazardous
chemical release• Loss of power, water, gas, and telephone• Shutdown of normal operations
Understand the Risk (What Can Go Wrong!)
Upgrade Vulnerable Facilities
Develop Emergency Response &Recovery Plans
Specify Desired Earthquake Performancewhen Constructing New Facilities
Encourage the Community to Prepare
• Strengthen high risk buildings• Anchor or brace critical equipment
Every Public Agency Manager Needs to ...
4
understand the risk
Courtesy TRINET
The potential intensity of future ground shaking is well-known.
Courtesy USGS
The vulnerabilityof typical build-ing constructiontypes is alsowell-known.
Wood Frame
Steel Frame
Ti lt-up
Precast Concrete
Equipment
Moderate
Low
Low
Medium
Medium
Medium
High
Medium
Strong
Medium
Medium
High
High
High
Very High
High
Very Strong
High
High
Col lapse N
Collapse N
Collapse N
Collapse N
Very High
Table of Building Vulnerability*
* This table indicates approximate vulnerabilities - specificbuilding vulnerability requires review by a qualified structuralengineer.
Ground Shaking
UnreinforcedMasonry (brick)
OlderConcrete Frame
ò Find YourBuilding Type
5
upgrade vulnerable facilities
Importantelectrical andmechanicalequipmentcan be cost-effectivelybraced andanchored toprevent damage and to minimizethe potential for prolonged dis-ruption of operations.
New Anchorage
New Bracing
Mill Valley’s City Hall and Fire Station bothoccupied an older, seismically vulnerable
concrete building. Thebuilding was upgradedto the level of essentialservice facility criteriaat a fraction of thereplacement cost whilestill preserving itshistorical value.
6
Design New Facilities for Desiredearthquake Performance
Viscous dampers wereintegrated into the 15-story steel frame of thenew Hiram W. JohnsonState Office Building inSan Francisco to provideassurance that govern-mental services would beavailable in the immediatepost-earthquake period.
Los Angeles County FireDepartment’s new Fire Com-munication & Control Facility(FCCF) was constructed usingperformance-based designcriteria, exceeding that pro-vided in the conventionalbuilding code. This base-isolated building is expectedto remain fully operationalfollowing a severe earthquake.
Designing new facilities to meet specific post-earthquakeperformance goals is the most cost-effective mitigationmeasure.
Rockwell Interna-tional has adoptedstrict performancestandards for thedesign of its newfacilities and hasretrofitted its existingbuildings and equip-ment to minimizefuture earthquakelosses.
develop emergency responseand recovery plans
7
Following the 1987 WhittierNarrows earthquake, CaliforniaFederal Savings restoredoperation of its severelydamaged headquarters throughimplementation of itsEmergency Response Plan.
encourage the communityto prepare
Prepared for the California Seismic Safety Commission by EQE International, Inc.
Photo Credits: California Federal Savings Bank, City of Mill Valley, EQE International,EQUIIS Photographic Database, Los Angeles County Fire Department, Rockwell Interna-tional, TRINET, & USGS.
Estimate Your Earthquake RiskDevelop an Earthquake Loss Reduction ProgramIntegrate Loss Reduction into YourCapital PlanningIdentity Mitigation Funding Sources(Consider Insurance Savings, Bonds, Hazard MitigationGrants, Tax Credits,...)
---
-
To Find Out How...To Find Out How...
Next StepsNext Steps
Ask for ...
A Toolkit forDecision-Makers(ssc report 99-04)
and
mitigationsuccess stories
(SSC Report 99-05)
Proposition 122 Product 2.2Earthquake Risk Management: A Guide for Decision-Makers (SSC Report 99-06)Copyright © 1999 California Seismic Safety Commission
State of CaliforniaGray Davis, Governor
1755 Creekside Oaks Drive, Suite 100Sacramento, California 95833http://www.seismic.ca.govPhone: (916) 263-5506FAX: (916) 263-0594
Seismic Safety Commission