“damage to commercial buildings from wind, storm...
TRANSCRIPT
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
““Damage to Commercial Buildings Damage to Commercial Buildings from Wind, Storm Surge and Debrisfrom Wind, Storm Surge and Debris””
A Presentation by:Gilberto Mosqueda
Assistant Professor, Department of Civil Structural and Environmental Engineering, University at Buffalo
In collaboration with:Keith Porter
California Institute of Technology
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Structural Damage Structural Damage InvestigationsInvestigations
Examine damage to large engineered structures, primarily bridges and commercial buildingsAssess structural damage from a multi-hazard perspectiveIdentify uses of seismic design principles to mitigate hurricane damage
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Engineered BuildingsEngineered Buildings
Building structures investigated Schools HospitalsCasino hotelsApartment buildingsOffice buildingsParking structuresOthers
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
HospitalsHospitals
Singing River Hospital in Pascagoula remained operational with some nonstructural damage
WindowsEntrance canopy
Good performance appears largely due to good glazing
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
SchoolsSchoolsD’Iberville High School, north of Biloxi
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
University of Southern Mississippi University of Southern Mississippi Marine Education Center in BiloxiMarine Education Center in Biloxi
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Buildings in Downtown Buildings in Downtown GulfportGulfport
Few structures collapsed
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Buildings in Downtown Buildings in Downtown GulfportGulfport
Most engineered buildings suffered only nonstructural damageBroken windows resulted in water damage at upper stories2-3 ft storm surge flooded first level
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Buildings in Downtown Buildings in Downtown GulfportGulfport
Blast-resistant building performed well -only 2 broken windows, but first story floodedMost buildings unoccupied -restoration under way
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Gulfport Coastal HotelsGulfport Coastal HotelsSignificant nonstructural damage to exterior and interior
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Gulfport Coastal HotelsGulfport Coastal Hotels
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Damage to hurricaneDamage to hurricane--resistant buildings resistant buildings
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Partial Collapse of Building Partial Collapse of Building Due to Barge ImpactDue to Barge Impact
Impact
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Partial Collapse of Parking Partial Collapse of Parking Structure Due to Barge ImpactStructure Due to Barge Impact
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Collapse of Parking Structures Collapse of Parking Structures Due to Storm SurgeDue to Storm Surge
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Collapse of Parking Structures Collapse of Parking Structures Due to Storm SurgeDue to Storm Surge
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Collapse of Parking Structures Collapse of Parking Structures Due to Storm SurgeDue to Storm Surge
Deck supports
Clip angles
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Collapse of Parking Structures Collapse of Parking Structures Due to Storm SurgeDue to Storm Surge
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Some parking structures Some parking structures performedperformed wellwell
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Partial collapse of parking Partial collapse of parking structures in Biloxistructures in Biloxi
Partial collapse –storm surge
No structural damage
Partial collapse –impact
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Glazing damage to downtown Glazing damage to downtown New Orleans office buildingsNew Orleans office buildings
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Glazing damage at New Glazing damage at New Orleans Hyatt RegencyOrleans Hyatt Regency
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Undamaged but unusableUndamaged but unusable……No potable waterNo potable water
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Xavier University Flood Xavier University Flood DamageDamage
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
Preliminary Lessons LearnedPreliminary Lessons Learned
Structural damage observed was caused byFlooding and moldStorm surgeSurge-borne debris (casino barges)
Structural damage from storm surge occurred to concrete structures that were not adequately restrained
Precast concrete floors in parking structures Simply supported spans of bridge
Significant glazing damage occurred to structures that were downwind of gravel roofsMold may require demolition of thousands of New Orleans homes and buildings
MULTIDISCIPLINARY CENTER FOR EARTHQUAKE ENGINEERING RESEARCH
Examining Extreme Events: Hurricane Katrina’s Impacts – November 2, 2005
MultihazardMultihazard aspectsaspects
Similar losses occur in earthquakes & hurricanesPrecast parking structures suffered similar damage during 1994 Northridge earthquake Seismic resistant details have been developed for precast construction and could be useful for storm surge resistant design
Photo Credit: Los Angeles Times