Tall Buildings in Numbers World’s Tallest Buildings with Dampers

As tall buildings continue to be built in seismically-active and cyclone-prone areas, the need to augment the structures of Types of Dampers these buildings with dynamic modification devices (in this case, dampers) to counteract these forces is growing. This AMD = Active Mass Damper TLD = Tuned Liquid Damper data report graphically summarizes the findings of the ATMD = Active TMD = Tuned Mass Damper BRB = Buckling Restrained Brace VD = Viscous Damper CTBUH Research project Study on Tall Building Damping HMD = Hybrid Mass Damper VED = Viscoelastic Damper Technologies, sponsored by Bouygues Construction (see also TLCD = Tuned Liquid Column Damper Damping Technologies for Tall Buildings, page 42). See the research paper on page 42 for more details about each damper type. ›› See the full list of buildings with dampers at ctbuh.org/damping

Tallest 10 Completed Buildings with Dampers

Shanghai World Financial Center Ping An Finance Center , 2008 , 2012 Shenzhen, 2017 Building Height: 492 m Building Height: 413 m Building Height: 599 m Damper Position: 90F/394 m Damper Position: 98F/363 m (estimated) Shanghai, 2015 Damper Position: 113F/556 m Type of Damper: ATMD Type of Damper: TLD Type of Damper: TMD Building Height: 632 m Petronas Twin Towers 1 & 2 Damper Position: Kuala Lumpur, 1998 125F/581 m Dubai, 2012 101 Building Height: 452 m Type of Damper: TMD Building Height: 392 m Taipei, 2004 Damper Position: within four legs under Damper Position: 86F/306 m Building Height: 508 m skybridge (approx. 150 m above ground floor) Type of Damper: TMD Damper Position: Type of Damper: TMD 600 m 88F/378 m Type of Damper: TMD , 2015 Building Height: 426 m Dubai, 2008 Damper Position: Building Height: 360 m 85F/397 m Damper Position: 450 m Type of Damper: TMD 48–49F/212 m Type of Damper: TMD

300 m

150 m

Shanghai Tower’s damper The ball-shaped pendulum Only 30% of the is celebrated by a special damper at % World’s 20 Tallest public “skyspace” with an is on public view, and is Buildings are equipped abstract scultpure atop commemorated with a with dampers. the damper enclosure. 30 mascot called “Damper Baby.”

48 | Tall Buildings in Numbers CTBUH Journal | 2018 Issue III BRB Tallest 50 Buildings with Dampers HMD 2% Mixed Includes buildings under construction 2% 2% AMD VED Hotel 2% 4% Steel 2% TLCD 8% 4% Steel/Concrete ATMD 8% 4% Office Composite 22% Mixed-Use Concrete/Steel 36% TLD TMD 48% 14% 14% 48%

Residential VD 26% Concrete 34% 20%

By Function By Primary Structural Material By Damper Type

All 250 m+ Buildings with Dampers, by Location

Moscow

Toronto Seattle 2 Tianjin 11 2 Incheon 3 New York Urumqi Beijing Osaka 2 Tokyo Shanghai Chongqing 6 3 Izumisano Doha Suzhou 2 Taipei 8 Shenzhen Jeddah Dubai Hong Kong Taguig City

2 Kuala Lumpur

2 Sydney Melbourne HIGHEST LOWEST

Wind Risk Single 250 m+ building in city

Seismic Risk # Number of 250 m+ buildings in city

The Shinjuku Center Tower, Tokyo The damper at 111 West 57th (1979) was retrofi tted with 288 Street, New York City, will weigh distributed oil dampers in 2009, 726 metric tons – more than 3.5 which reduced movement by 20% Statues of Liberty. 288 during the 2011 Tohuku earthquake.

CTBUH Journal | 2018 Issue III Tall Buildings in Numbers | 49