Introduction Buildings Habitat Urban - Regional …global.ctbuh.org/resources/presentations/using... · · 2015-02-24Taipei 101. 台北. 101. 大厦 ... Passive Tuned Mass Damper

Introduction

• Supplemental Damping Systems

• Early Applications

• Tuned Mass Dampers

• Tuned Liquid Dampers

Mass: 660 Tonne (main) 2 x 4 Tonne (pinnacle) Style: Simple Pendulum (main) X/Y Table on bearings (pinnacle) Status: Completed 2004

© Council on Tall Buildings

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RWDI阻尼器项目业绩（部分） RWDI Damper Credentials (Partial)

PROJECTS 项目

DAMPER STYLE 阻尼器类型

PROJECTS 项目

DAMPER STYLE 阻尼器类型

Taipei 101 台北101大厦 Taipei, Taiwan 台湾台北

Passive Tuned Mass Dampers (TMD) – in both tower and spire 被动调谐质量阻尼器－塔楼和塔尖

均有设置

Shenzhen Bridge 深港西部通道大橋 Shenzhen, China – Hong Kong 中國深圳 - 香港

Passive Tuned Mass Damper (TMD)

被动调谐质量阻尼器

Shanghai Center 上海中心 Shanghai, China 中国上海



Sakhalin 1 - Drilling Rig 库页岛1号钻井平台调谐质量阻尼器

Tuned Mass Damper (TMD) 调谐质量阻尼器

731 Lexington Avenue (Bloomberg Tower) 莱克星顿大道731号 (彭博塔) New York City, New York 美国纽约



Songdo City Block 125 松岛市125街区 New Songdo City, Korea 韩国仁川新松岛市

Tuned Liquid Column Damper (TLCD)

调谐液体柱阻尼器

Park Hyatt Tower 柏悅酒店塔楼 Chicago, Illinois 美国芝加哥



One Penn Plaza One Penn 广场 Philadelphia, Pennsylvania 美国宾州费城

Tuned Liquid Column Damper (TLCD)

调谐液体柱阻尼器

Trump Tower Trump 塔楼 New York City, New York 美国纽约



432 Park Avenue 432公园大道住宅塔楼 New York City, New York 美国纽约



Petronas Towers 双子塔 Kuala Lumpur, Malaysia 马来西亚吉隆坡

Passive Tuned Mass Dampers (TMD)


Princess Tower 公主塔 Dubai, UAE 阿聯酋迪拜

Passive Tuned Slosh Dampers 被动调谐液体阻尼器

… …


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Tuned Mass Dampers

A TMD is a damped secondary

inertial system which consists

of a mass attached to the

building (generally at a location

with maximum motion) through

a spring and damping

mechanism, usually a viscous

damping device.

m c

k


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Equations of Motion

[ ] [ ] [ ] ( ){ } ( ){ }tFxFxKxCxM envTMD +=++ &&&

x is the vector representing the floor-by-floor coordinates, as well as coordinates (relative to the TMD floor) for the TMD

[M] is a matrix which contains the mass and mass moment of inertia of each floor, as well as the mass of the TMD

{FTMD(x)} is a vector which takes into account the nonlinear coupling forces {Fenv(t)} is the force vector which takes a different form depending on whether wind or seismic excitation is being considered © Council on Tall B

uildings

and Urban Habitat

Simple-pendulum TMD Taipei 101 - 660 T ball-shaped TMD


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Dual-stage pendulum TMD


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Simple pendulum with variable restoring force TMD

• The available space for a

supplemental damping

system installation is usually

limited.

• RWDI/Motioneering

developed “simple pendulum

with variable restoring force

TMD” to allow extension of

the period of a pendulum.


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• A negative restoring

force proportional to

amplitude is applied.

• The frequency of this

system can be

adjusted © Council on Tall Buildings

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The TMD system is comprised of 6

general component categories:

1. cables

2. mass block assemblies

3. mechanical linkages

4. articulating support columns

5. viscous damping devices

6. snubbing system


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Simple pendulum with variable restoring force TMD -mass block assemblies-

• There are two mass block

assemblies. These are designed

to move in conjunction with

each other, but are supported

by different means.

• TMD consumes much less

space than a singular-mass

passive TMD system.


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Simple pendulum with variable restoring force TMD - mechanical linkages-

• The TMD interface

assembly is a set of

mechanical linkages that

inter-connect the primary

and secondary mass

block assemblies so that

these systems are motion

dependent.


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Simple pendulum with variable restoring force TMD - mechanical linkages-


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Simple pendulum with variable restoring force TMD -articulating support columns-

• Columns shall be installed so that

the secondary mass block is

plumb and precisely aligned with

the primary mass block.

• They shall exhibit very low friction

properties at rotational joints to

allow for ease of motion of

secondary mass block.


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Simple pendulum with variable restoring force TMD -articulating support columns-


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• Viscous damping devices (VDDs)

are linked between the primary

mass of the TMD and the structure.

• A certain proportion of the

vibration energy is absorbed by

these units as they extend and

contract due to the TMD’s relative

motions.

Simple pendulum with variable restoring force TMD -viscous damping devices-


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Simple pendulum with variable restoring force TMD -viscous damping devices-


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• Larger TMD displacements during

higher return period wind or seismic

events must be controlled to ensure

that local damage is not caused.

• The snubbing system limits the

excessive TMD motions with the use

of four auxiliary shock absorbers.

Simple pendulum with variable restoring force TMD -snubbing system-


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Simple pendulum with variable restoring force TMD -snubbing system-


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• In comparison with TMD, the advantages associated with

tuned liquid dampers include low initial cost, nearly

maintenance free operation and simplicity in frequency

tuning.

• Disadvantages are the effectiveness of water mass

participation in motion, uncertainties associated with

nonlinear behavior effects and generally higher floor space

requirements.

• TSD can be combined with Fire fighting water tanks.

Tuned Liquid Dampers


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Princess Tower, Dubai, UAE

TSD阻尼器


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Tuned Liquid Dampers


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Concluding Remarks

• Implementation of supplemental damping systems has

gained considerable recognition around the world for the

mitigation of wind-induced motions.

• The acceptance of these innovative systems is based on a

balance between serviceability performance targets,

construction cost and the complexity of implementation in

an actual building.


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• Every tall building has unique characteristics that must be

carefully investigated to determine which type of

supplemental damping system can best achieve the target

performance.

• The assessment should consider a wide range of factors

that are critical in achieving the desired performance.

• Careful consideration at early design stages is key to a

successful implementation of a supplemental damping

system.

Concluding Remarks


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Documents

Introduction Buildings Habitat Urban - Regional …global.ctbuh.org/resources/presentations/using... · · 2015-02-24Taipei 101. 台北. 101. 大厦 ... Passive Tuned Mass Damper