earthquake resistant building technologies
TRANSCRIPT
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Earthquake-Resistant Building Technologies
MYO ZIN AUNG 28J16121 Ship Design Lab. (NAOE)
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ContentsBase IsolationDampersTuned Mass DamperTuned Liquid DamperSome famous buildingsBuilding Elevation ControlInvisibility CloaksOthers 2
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Base Isolation
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Base Isolation
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Base Isolation
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Base Isolation Bearings
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Base Isolation - Comparison
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Dampers
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Some Seismic Energy Dissipation Devices
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Oil Damper - Shock Absorber
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Viscous Dampers
Hydraulic Damper12
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A Damper in E4 Building
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Friction Damper
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Friction Damper for Tension–
Compression Brace
Pall Friction Dampers
Energy is absorbed by surfaces with friction between them against each other
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Friction Damper
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Yielding Damper
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Plastic Deformation (Yielding) of metal absorb significant amount of seismic energy.
But I am sure you don’t want such kind of deformation of the structure after the earthquake.Even if the structure is not collapsed totally, the building must be demolished for the future safety
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Yielding Damper
17Honeycomb Damper System
Energy is absorbed by deformation of the metal
Metallic Yielding-Friction Damper (MYFD)
Before
After
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Scorpion Yielding Connector (SYC)modular, replaceable, standardized hysteretic fuses
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Bracing
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Infill shear trusses - University of California
dormitory
Construction of Pearl River Tower X-bracing
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Bracing
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VA Hospital. Combination of yielding damper and viscous damper across the whole building
Not Only Safe But Also Attractive
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Tuned Mass Damping
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Taipei 101 Financial Tower - Taipei, Taiwan
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Taipei 101 TMD
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The largest damper sphere in the world, consists of 41 circular steel plates of varying diameters, each 125 mm (4.92 in) thick, welded together to form a 5.5 m (18 ft.) diameter sphere.
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Halving the Shaking Due to Long-Period Earthquake Ground Motion at Shinjuku Mitsui BuildingJapan’s First Rooftop-Installed Ultra-Large Vibration Control Device (Approx. 1,800 tons)
Shinjuku Mitsui Building
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Building @ 111 West 57th Street
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Tuned Liquid Column Damper (TLCD)
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Cemindo Tower (Jakarta, Indonesia)
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One Rincon Hill - San Francisco, California
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Tuned Liquid Damper - One Rincon Hill
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Tokyo Skytree, Japan
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A reinforced concrete core runs through the heart of the structure core-wall construction to increase seismic performance at lower cost.
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Tokyo Skytree
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One Rincon Hill – Earthquake Engineering
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One Rincon Hill – Earthquake Engineering
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Building elevation control
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Building elevation control (Cont;)
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Transamerica Pyramid building in San Francisco, California
Ryugyong HotelPyongyang, North Korea Burj Khalifa, Dubai, UAE
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Seismic Invisibility Cloak• Concentric plastic rings are installed underground in the top if three feet if soil.
• Harder layers are further from the building. Each time the wave hits a softer layer it is deflected off its initial path.
• Once past the building the wave can continue on their path.
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Test of Seismic Invisibility CloaksAlluvial basin in southern France
• The French team created its so-called metamaterial by drilling three lines of empty boreholes 5 metres deep in a basin of silted clay up to 200 metres deep.
• They strongly reflect the seismic waves. But one problem with this kind of array is that the reflected waves could end up doing more damage to buildings nearby
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Shear Walls
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Steel Plate Shear Wall (SPSW) consists of steel infill plates bounded by boundary
elementsReinforced Concrete Shear Wall
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Steel and FRP jacketing
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Steel Jacketing FRP Jacketing
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Restrain cables for Bridges
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Monorail StationOsaka University
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Thank You!