Earthquake-Resistant Building Technologies

MYO ZIN AUNG 28J16121 Ship Design Lab. (NAOE)

ContentsBase IsolationDampersTuned Mass DamperTuned Liquid DamperSome famous buildingsBuilding Elevation ControlInvisibility CloaksOthers 2

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Base Isolation

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

Some Seismic Energy Dissipation Devices

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Oil Damper - Shock Absorber

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Viscous Dampers

Hydraulic Damper12

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

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

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

Bracing

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Infill shear trusses - University of California

dormitory

Construction of Pearl River Tower X-bracing

Bracing

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VA Hospital. Combination of yielding damper and viscous damper across the whole building

Not Only Safe But Also Attractive

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

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.

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

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

Shear Walls

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Steel Plate Shear Wall (SPSW) consists of steel infill plates bounded by boundary

elementsReinforced Concrete Shear Wall

Steel and FRP jacketing

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Steel Jacketing FRP Jacketing

Restrain cables for Bridges

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Monorail StationOsaka University

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Thank You!