Earthquake Hazard for Nonstructural Elements-Isık Ülkün Neusser

7/24/2019 Earthquake Hazard for Nonstructural Elements-Isık Ülkün Neusser

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Earthquake Hazard forNonstructural Elements



Earthquake-Resistant Design (ERD) Philosophy that is currently agreed upon

internationally for buildings requires that,

- Minor earthquake shaking is resisted with NO damage to SEs and NSEs;

- Moderate shaking with MINOR damage to SEs, but SOME damage to NSEs; and - Severe (and infrequent) shaking with damage to SEs, but with NO collapse of SEs

But , It is insufficient for SEs for NSEs of both normal buildings Thus, a REVISED ERD

Philosophy is required for normal buildings as

- Minor earthquake shaking resisted with NO damage to SEs and NSEs,

- Moderate shaking with NO damage to SEs and NSEs, and

-Severe shaking with damage to SEs but with no structural collapse, and with no

permanent damage to NSEs;

for critical & lifeline buildings as- Minor earthquake shaking resisted with NO damage to SEs and NSEs,

- Moderate shaking with NO damage to SEs and NSEs, and

- Severe shaking with MINOR damage to SEs, and all NSEs available for immediate use in

the aftermath

Reference : Introduction to Earthquake Protection of Non-Structural Elements in Buildings, Gujarat State Disaster Management Authority ,

C. V. R. Murty Rupen Goswami A. R. Vijayanarayanan R. Pradeep Kumar Vipul V. Mehta





REVISED

REVISED

for critical and

lifeline buildings



Lifeline & Critical Buildings

Hospitals,

Schools,

Administrative centres,

Fire service and police stations,

Community halls



A ward room in Loon community hospital, wrecked by the earthquake

https://www.ifrc.org/es/noticias/noticias/asia-pacific/philippines/mounting-health-concerns-in-the-aftermath-of-the-bohol-earthquake-as-hospitals-destroyed-63670/



http://latimesblogs.latimes.com/lanow/2010/05/my-entry-1.html



Architectural non structural Elements

- Partitions , Ceilings and Soffits

- Computer access floors

- Curtain wall, Windows and Glazing

- Permanent Ornamentation

- Claddings

Other non structural Elements

- Also mechanical, electrical, and plumbing (MEP) components such as

HVAC units, ducts, conduits, and pipes

- furniture, fixtures, and equipment

- and other building contents.


http://slidepdf.com/reader/full/earthquake-hazard-for-nonstructural-elements-isik-uelkuen-neusser 8/33Reference : Field Manual FEMA 74-FM / September 2005 prepared by Wiss, Janney, Elstner Associates, Inc



Photo courtesy of Degenkolb Engineers

Photo courtesy of Wiss, Janney, Elstner Associates

Appropriately braced partial height stud partition

Failure of inadequately braced partial height partitionsPARTİTİONS



Partıtıon free to slıdeat top but restraıned

laterally

Reference: https://www.fema.gov/earthquake-publications/fema-e-74-reducing-risks-nonstructural-earthquake-damage-chapter-6321#2

















Reference : Introduction to Earthquake Protection of Non-Structural Elements in Buildings, Gujarat State Disaster Management Authority ,C. V. R. Murty Rupen Goswami A. R. Vijayanarayanan R. Pradeep Kumar Vipul V. Mehta



Plywood overlay Reinforced concrete overlay

Reference: National Research Council Canada http://www.nrc-cnrc.gc.ca/ctu-

http://www.nrc-cnrc.gc.ca/ctu-




Reference : Field Manual FEMA 74-FM / September 2005 prepared by Wiss, Janney, Elstner Associates, Inc



Reference: CUREE , Nonstructural Earthquake Damage 2009

CEİLİNG







GLAZİNG



WİNDOWS AND GLAZİNG

Tempered glass Laminated glass




MASONARY PARAPHETS



Reference: National Research Council Canada http://www.nrc-cnrc.gc.ca/ctu-

















http://www.nbcbayarea.com/news/local/Unexpected-Quake-Risks-In-California-Public-Schools-291100881.html

Light fixtures :The lights can be sharp and heavy and can directly fall on the head



Toppled cabinets, 1994 Northridge Earthquake.: Wiss, Janney, Elstner Associates, FEMA 77




Fitting bookshelves with edge restraints or elastic cords to keep books from falling



Building Utility Elements



Fuel Tanks and Distribution




Gas or fuel supply pipe




Reference : Introduction to Earthquake Protection of Non-Structural Elements in Buildings Gujarat State Disaster Management Authority

Toppling of gas cylinders

Pullout of electrical control panel

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Earthquake Hazard for Nonstructural Elements-Isık Ülkün Neusser