Seismic isolation strategies for major buildings€¦ · Seismic isolation strategies for major...
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a 687 Lead Rubber Bearing (LRB) a Along with sliding bearing a Effective period T eff = 3.3 s a Effective damping ξ eff = 30 % a Displacement capacity ± 380 mm MARMARA HOSPITAL, TURKEY (retrofit) a 210 Friction Pendulum (PS) a From 4,000 kN to 20,000 kN vertical capacity a Radius R=4 m a Effective period T eff = 3.45 s a Effective damping ξ eff = 16 % a Displacement capacity ± 500 mm NATIONAL PALACE MUSEUM, TAIWAN (new) a 262 rubber isolator Ø1000 (HDRB) a Along with 36 Fluid Viscous Damper (FD) 1750 kN capacity a Isolation period of 3.3 s a Displacement capacity ± 700 mm BUCHAREST CITY HALL, ROMANIA (retrofit) Seismic isolation strategies for major buildings Charles CYNOBER 1 , Mauro SARTORI 2 , Burak TÜRKDÖNMEZ 3 , François TRONEL 4 1 Freyssinet - France, 2 FPC Italia - Italia, 3 Freysaş - Turkey, 4 Freyrom - Romania ID: 667 Contact www.freyssinet.com Follow us on: Contact C V 5 C V 5 Earthquake protection devices ISOSISM® range To discover the whole range of the ISOSISM® products you can ask for our brochure In areas subjected to large earthquakes, the seismic protection of major buildings is a priority for the society. Operational administrative centers, fire stations and hospitals are required for the crisis management. Other buildings such as schools and main museums represent as well a huge social value. Abstract a Protects occupants and equipment in the building a Reduces overall seismic demand c Generate savings in structural material quantities a Structure remains elastic for design earthquake c Reduced maintenance cost Benefits of seismic base isolation Elastomer Anchor dowel Steel reinforcement Screw Outer plate Lead core Anchor plate Outer plate Anchor dowel Elastomer Anchor plate Reinforcement Screw Bottom anchor plate Top anchor plate Primary sliding surface Secondary sliding surface Sliding material Slider Clevis mounting Rod Piston Body Clevis mounting Clevis + Pin Clevis + Pin α Figure 1. Freyssinet ISOSISM products used in buildings’ base isolation a Building isolation system design a Device design, production and testing a Device Installation on site FREYSSINET offers full service Key parameters for overall seismic demand reduction: a Increase flexibility a Increase damping Introduction 5% 30% acceleration period Increase flexibility Increase damping 5% 30%
Transcript of Seismic isolation strategies for major buildings€¦ · Seismic isolation strategies for major...
a 687 Lead Rubber Bearing (LRB)a Along with sliding bearinga Effective period Teff = 3.3 sa Effective damping ξeff = 30 %a Displacement capacity ± 380 mm
MARMARA HOSPITAL, TURKEY (retrofit)
a 210 Friction Pendulum (PS)a From 4,000 kN to 20,000 kN vertical capacity
a Radius R=4 ma Effective period Teff = 3.45 sa Effective damping ξeff = 16 %a Displacement capacity ± 500 mm
NATIONAL PALACE MUSEUM, TAIWAN (new)
a 262 rubber isolator Ø1000 (HDRB)a Along with 36 Fluid Viscous Damper (FD) 1750 kN capacity
a Isolation period of 3.3 sa Displacement capacity ± 700 mm
BUCHAREST CITY HALL, ROMANIA (retrofit)
Seismic isolation strategiesfor major buildings
Charles CYNOBER1, Mauro SARTORI2, Burak TÜRKDÖNMEZ3, François TRONEL4
1Freyssinet - France, 2FPC Italia - Italia, 3Freysaş - Turkey, 4Freyrom - Romania
ID: 667
Contactwww.freyssinet.comFollow us on:
Contact
C V 5C V 5
Earthquake protection devices ISOSISM® range
To discover the whole range of the ISOSISM® products you can ask for our brochure
In areas subjected to large earthquakes, the seismic protection of major buildings is a priority for the society. Operational administrative centers, fire stations and hospitals are required for the crisis management. Other buildings such as schools and main museums represent as well a huge social value.
Abstract
a Protects occupants and equipment in the buildinga Reduces overall seismic demand c Generate savings in structural material quantitiesa Structure remains elastic for design earthquake c Reduced maintenance cost
Benefits of seismic base isolation
2.3.a Isosism® isolators
Elastomer
Anchor dowel
Steel reinforcementScrew
Outer plate
Lead core Anchor plate
Outer plate
Anchor dowel
Elastomer
Anchor plateReinforcement
Screw
Bottom anchor plate
Top anchor plate
Primary sliding surface
Secondary sliding surface
Sliding material
Slider
2.3.b Isosism® dampers
α
α
α
Clevis mountingRodPiston
Body
Clevis mounting
Clevis + Pin
Clevis + Pin
2.3.b Isosism® dampers
α
α
α
2.3.b Isosism® dampers
α
α
α
Figure 1. Freyssinet ISOSISM products used in buildings’ base isolation
a Building isolation system design a Device design, production and testing
a Device Installation on site
FREYSSINET offers full service
Key parameters for overall seismic demand reduction:a Increase flexibilitya Increase damping
Introduction
5%
30%
acce
lera
tion
period
Increase flexibility
Increase damping
5%
30%
