DOCSLIB.ORG

JUN 2 2 2'012 June 2012

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
JUN 2 2 2'012 June 2012 Strategies For Mitigating Wind-Induced Motion in Tall Buildings through Aerodynamic and Damping Modifications by Nnabuihe Nnamani B.Sc. in Civil & Environmental Engineering The George Washington University, 2011 Submitted to the Department of Civil & Environmental Engineering in Partial Fulfillment of the Requirements for the Degree of MASTER OF ENGINEERING IN CIVIL AND ENVIRONMENTAL ENGINEERING at the ASSACHUsETTs INSTrruTe Massachusetts Institute of Technology JUN 2 2 2'012 June 2012 © 2012 Massachusetts Institute of Technology LiB "RAR IE5 All rights reserved ARCHIVES Signature of Author: Department of Civil & Environmental Engineering May 18, 2012 Certified by: Jerome J. Connor Professor of Civil and Environmental Engineering Thesis Supervisor JI - 7A Accepted by II HeidiM. Nepf Chair, Departmental Committee for Graduate Students Strategies For Mitigating Wind-Induced Motion in Tall Buildings through Aerodynamic and Damping Modifications by Nnabuihe Nnamani Submitted to the Department of Civil & Environmental Engineering on May 18, 2012 in Partial Fulfillment of the Requirements for the Degree of Master of Engineering in Civil and Environmental Engineering ABSTRACT The advent of modern structural systems, spurred by advances in construction methodology and high strength materials, has driven the height of modern skyscrapers beyond what was once deemed possible. Although science and technology has been able to increase the strength of building materials such as steel and concrete, their material stiffness has remained virtually unchanged. The end result is a wave of taller, slender and more flexible skyscrapers that are very susceptible to wind-induced excitations. Ever mindful of the fact that human comfort levels are affected by perceived structural responses, engineers must employ various strategies to satisfy serviceability constraints. This thesis presents an overview, in addition to successful applications, of the various aerodynamic and damping modifications that are used to control wind-induced motion in tall buildings. Finally, a modified gyrostabilizer, akin to those used in luxury yachts, is proposed as a possible active control mechanism. The feasibility of this device was studied using simple statics and rigid body dynamics. Thesis Supervisor: Jerome J. Connor Title: Professor of Civil and Environmental Engineering ACKNOWLEDGEMENT I owe my deepest gratitude to my parents and family for being such as inspiration to me. I am very grateful for their trust, guidance and support in all my endeavors. I would also like to thank my thesis supervisor, Professor Jerome J. Connor, for his contributions and guidance throughout my research. Finally, I would like to acknowledge the Master of Engineering class of 2012 for their companionship throughout my time at MIT. I consider it a great pleasure to have had you all as classmates. 3 TABLE OF CONTENT A BSTRACT ................................................................................................................................................ 2 A CKN OW LEDG EM ENT ........................................................................................................................... 3 TA BLE O F CO N TENT .............................................................................................................................. 4 LIST O F FIGU RES ..................................................................................................................................... 5 INTRO D U CTIO N ...................................................................................................................................... 6 CH A PTER 1: W IN D IND U CED M OTION ........................................................................................ 9 DETERM IN ING W IND ................................................................................................................... 9 DETERMINING WIND LOAD AND STRUCTURAL RESPONSE.................................................... 10 W ind Tunnel Testing...................................................................................................................................11 Com putational Fluid Dynam ics ......................................................................................................... 12 CHAPTER 2: AERODYNAMIC MODIFICATIONS ...................................................................... 13 TAPERED CROSS SECTIONS AND SETBACKSA.CRO.E.T.I.NT.P.E.R.E.D.SS.SS..................................................... ........ 13 H ELICA L SHAPES ............................................................................................................................................... 15 ADDITION OF OPENINGS ................................................................................................................................ 16 CORNER M ODIFICATIONS ............................................................................................................................. 17 CHAPTER 3: SUPPLEMENTARY DAMPING MODIFICATION............................................... 20 PASSIVE DAM PING ............................................................................................................................................ 22 Tuned M ass Dam pers ................................................................................................................................. 22 Viscous and Viscoelastic Dam pers ................................................................................................... 25 ACTIVE DAM PING .............................................................................................................................................. 27 Active M ass Driver.......................................................................................................................................27 Hybrid M ass Dam per .................................................................................................................................. 28 SEM I ACTIVE DAM PERSS.................................................................................................................................. 29 M agneto-rheological (M R) dam per ................................................................................................ 29 Electro-rheological Dam per.....................................................................................................................31 Active Variable Stiffness ............................................................................................................................ 31 CHAPTER 4: PROPOSED DAMPING MODIFICATION ........................................................... 33 GYROSTABILIZER .............................................................................................................................................. 33 UN DERSTANDDER T NS IN G GYROSCOPIC .............................................................................................. 34 CON CEIVA BLE DESIGN .................................................................................................................................... 37 M echanism of a Gyroscope Attached to an exterior w all............................................................40 W ind loading on M odel..............................................................................................................................43 M odified Gyrostabilizer Design .............................................................................................................. 44 CONCLUSION ......................................................................................................................................... 48 REFERENCES ......................................................................................................................................... 50 4 LIST OF FIGURES Figure 1: Effects of Perceived Accelerations in Humans...........................................7 Figure 2: Patterns of w ind m otion................................................................................ 9 Figure 3: Vertical W ind Profile.................................................................................. 10 Figure 4: Chicago's Trump Tower in Wind Tunnel...................................................11 Figure 5: Burj Khalifa in Dubai, UAE........................................................................... 13 Figure 6: Proposed Kingdom Tower in Jeddah, Saudi Arabia.................14 Figure 7: Infinity Tow er in Dubai, UAE...................................................................... 15 Figure 8: Shanghai Tower in Shanghai, China............................................................16 Figure 9: Shanghai W orld Financial Center................................................................ 17 Figure 10: Various Corner Modifications.................................................................. 17 Figure 11: T aip ei 101 .................................................................................................. 18 Figure 12: Aqua Tow er in Chicago, USA.................................................................... 19 Figure 13: Undamped Response (left) and Damped Response (right)...................20 F ig u re 14 : T M D ................................................................................................................. 2 2 Figure 15: Pendulum TM D in Taipei 101.......................................................................23 Figure 16: Sliding
Load more

Recommended publications
  • Shanghai Tower Construction & Development Co., Ltd
    Autodesk Customer Success Story Shanghai Tower Construction & Development Co., Ltd. COMPANY Shanghai Tower Rising to new heights with BIM. Construction & Development Co., Ltd. Shanghai Tower owner champions BIM PROJECT TEAM for design and construction of one of the Gensler Thornton Tomasetti Cosentini Associates world’s tallest (and greenest) buildings. Architectural Design and Research Institute of Tongji University Shanghai Xiandai Engineering Consultants Co., Ltd. Shanghai Construction Group Shanghai Installation Engineering Engineering Co., Ltd. Autodesk Consulting SOFTWARE Autodesk® Revit® Autodesk® Navisworks® Manage Autodesk® Ecotect® Analysis AutoCAD® Autodesk BIM solutions enable the different design disciplines to work together in a seamless fashion on a single information platform—improving efficiency, reducing Image courtesy of Shanghai Tower Construction and Development Co., Ltd. Rendering by Gensler. errors, and improving Project summary featuring a public sky garden, together with cafes, both project and building restaurants, and retail space. The double-skinned A striking new addition to the Shanghai skyline is performance. facade creates a thermal buffer zone to minimize currently rising in the heart of the city’s financial heat gain, and the spiraling nature of the outer district. The super high-rise Shanghai Tower will — Jianping Gu facade maximizes daylighting and views while Director and General Manager soon stand as the world’s second tallest building, reducing wind loads and conserving construction Shanghai Tower Construction and adjacent to two other iconic structures, the materials. To save energy, the facility includes & Development Co., Ltd. Jin Mao Tower and the Shanghai World Financial its own wind farm and geothermal system. In Center. The 121-story transparent glass tower will addition, rainwater recovery and gray water twist and taper as it rises, conveying a unique recycling systems reduce water usage.
    [Show full text]
  • CTBUH Journal
    About the Council The Council on Tall Buildings and Urban Habitat, based at the Illinois Institute of Technology in CTBUH Journal Chicago and with a China offi ce at Tongji International Journal on Tall Buildings and Urban Habitat University in Shanghai, is an international not-for-profi t organization supported by architecture, engineering, planning, development, and construction professionals. Founded in 1969, the Council’s mission is to disseminate multi- Tall buildings: design, construction, and operation | 2014 Issue IV disciplinary information on tall buildings and sustainable urban environments, to maximize the international interaction of professionals involved Case Study: One Central Park, Sydney in creating the built environment, and to make the latest knowledge available to professionals in High-Rise Housing: The Singapore Experience a useful form. The Emergence of Asian Supertalls The CTBUH disseminates its fi ndings, and facilitates business exchange, through: the Achieving Six Stars in Sydney publication of books, monographs, proceedings, and reports; the organization of world congresses, Ethical Implications of international, regional, and specialty conferences The Skyscraper Race and workshops; the maintaining of an extensive website and tall building databases of built, under Tall Buildings in Numbers: construction, and proposed buildings; the Unfi nished Projects distribution of a monthly international tall building e-newsletter; the maintaining of an Talking Tall: Ben van Berkel international resource center; the bestowing of annual awards for design and construction excellence and individual lifetime achievement; the management of special task forces/working groups; the hosting of technical forums; and the publication of the CTBUH Journal, a professional journal containing refereed papers written by researchers, scholars, and practicing professionals.
    [Show full text]
  • July 2016 Form Follows Physics
    ® July 2016July Form follows Physics follows Form S T R U C T U R E A Joint Publication of NCSEA | CASE | SEI How wind tunnel shaping workshops have become practice that suggest any structure with a height- an invaluable tool for architects and engineers in to-width aspect ratio over 4:1 or 5:1 would be STRUCTURAL search of high rise buildings’ optimal form. sensitive to wind effects. Many of the buildings oday, a great deal is known about that have benefited from in-depth wind tunnel how wind affects tall buildings differ- testing have aspect ratios of 10:1 or 12:1, values ANALYSIS ently than it does shorter structures. well beyond a code’s applicability. With such However, wind-related design issues high slenderness ratios, the structure has a very are usually considered much later in the design high degree of flexibility, which also means it has discussing problems, solutions, T process than they should be to achieve structures long periods of vibration. Generally speaking, idiosyncrasies, and applications that have optimal performance with minimal structures with longer periods of vibration attract of various analysis methods cost. Wind engineers traditionally interact with more energy from the wind, which increases their structural engineers after the conceptual design motion during a windstorm. phase when basic decisions about the building Crosswind effects can also be significant. Shorter, form and structural system have already been squatter buildings tend to be dominated by wind made. A better approach is to bring the entire induced drag, so the form drag of the build- building team up to speed on potentially chal- ing is what governs the loads.
    [Show full text]
  • Read Book Skyscrapers: a History of the Worlds Most Extraordinary
    SKYSCRAPERS: A HISTORY OF THE WORLDS MOST EXTRAORDINARY BUILDINGS PDF, EPUB, EBOOK Judith Dupre, Adrian Smith | 176 pages | 05 Nov 2013 | Black Dog & Leventhal Publishers Inc | 9781579129422 | English | New York, United States Skyscrapers: A History of the Worlds Most Extraordinary Buildings PDF Book By crossing the boundaries of strict geometry and modern technologies in architecture, he came up with a masterpiece that has more than a twist in its tail. Item added to your basket. Sophia McCutchen rated it it was amazing Nov 27, The lowest-priced brand-new, unused, unopened, undamaged item in its original packaging where packaging is applicable. Standing meters high and weighing half a million tons, Burj Khalifa towers above its city like a giant redwood in a field of daisies. The observation deck on the 43rd floor offers stunning views of Central, one of Hong Kong's busiest districts. It was the tallest of all buildings in the European Union until London's The Shard bumped it to second in The Shard did it, slicing up the skyline and the record books with its meter height overtaking the Commerzbank Headquarters in Frankfurt by nine meters, to become the highest building in the European Union. That it came about due to auto mogul Walter P. Marina Bay Sands , 10 Bayfront Ave. Heather Tribe rated it it was amazing Dec 01, Standing 1, feet tall, the building was one of the first to use new advanced structural engineering that could withstand typhoon winds as well as earthquakes ranging up to a seven on the Richter scale. Construction — mainly using concrete and stone — began around 72AD and finished in 80AD.
    [Show full text]
  • PB198 Wind Report
    Pedestrian Wind Assessment Cambridge Discovery Park April 13, 2016 RWDI # 1602140 Cambridge Discovery Park Building 400/500 Cambridge, MA Pedestrian Wind Assessment RWDI # 1602140 April 13, 2016 SUBMITTED TO Eric Weyant Senior Associate ADD Inc, now with Stantec 311 Summer Street Boston MA 02210-1723 [email protected] SUBMITTED BY Rowan Williams Davies & Irwin Inc. 650 Woodlawn Road West Guelph, Ontario, Canada N1K 1B8 519.823.1311 Hanqing Wu, Ph.D., P.Eng. Technical Director / Principal [email protected] Bill Smeaton, P.Eng. Senior Project Manager / Principal [email protected] This document is intended for the sole use of the party to whom it is addressed and may contain information that is privileged and/or confidential. If you have received this in error, please notify us immediately. ® RWDI name and logo are registered trademarks in Canada and the United States of America Reputation Resources Results Canada | USA | UK | India | China | Hong Kong | Singapore www.rwdi.com Pedestrian Wind Assessment Cambridge Discovery Park April 13, 2016 RWDI # 1602140 1. Introduction Rowan Williams Davies & Irwin Inc. (RWDI) was retained by ADD Inc. to assess the potential pedestrian wind conditions for the proposed Cambridge Discovery Park Building 400/500 Project located in Cambridge, MA (Image 1). We understand the project consists of a new 4-story bridge connecting two 6-story buildings with a roadway between them. There are concerns about the wind conditions around and under the bridge. The objective of this assessment is therefore to provide a qualitative evaluation of wind comfort conditions and recommend mitigation measures, if necessary.
    [Show full text]
  • Entuitive Tall Buildings
    TALL BUILDINGS HIGH PERFORMANCE ENTUITIVE IS COLLABORATING WITH DEVELOPERS, ARCHITECTS AND BUILDERS TO DESIGN AND ENGINEER HIGH PERFORMANCE TALL BUILDINGS THAT ARE DEFINING CITY SKYLINES Urban centres around the globe are experiencing unprecedented growth. With limited land resources, cities are increasingly building towers – both for commercial and residential developments. Entuitive’s Tall Buildings team consists of structural engineers, building envelope specialists and technologists with decades of experience in delivering high-rise buildings through innovative and value driven solutions. DELIVERING VALUE It’s our ambition to help clients realize the best performing buildings that support their vision and commercial objectives. Through a holistic, integrated and highly collaborative approach, we draw on the wide-range of expertise wielded by Entuitive’s professionals to develop advanced structural and envelope solutions that deliver multiple dimensions of building performance with greater life-cycle economies. OPTIMIZING PERFORMANCE With extensive experience in tall buildings, deep knowledge of the latest building materials and construction methods, and sophisticated modeling techniques, our engineers and building envelope specialists focusing on solutions that enhance building performance. We strive to deliver a high degree of occupant comfort by mitigating the effects of wind-induced vibration. Our designs consider building resilience to natural and man-made events including seismic, extreme weather and blast. And we consistently optimize our structural and envelope solutions with an eye to improving efficiency at every stage while minimizing costs. AN ADVANCED APPROACH We use BIM and the latest technologies to enhance collaboration and coordination in order to deliver projects on-time and on- budget. We also go beyond BIM and utilize computational design and parametric modelling to assist architects in unleashing their creativity while optimizing the building structure – affording greater constructability, cost-savings and reduced time to market.
    [Show full text]
  • Structural Developments in Tall Buildings: Current Trends and Future Prospects
    © 2007 University of Sydney. All rights reserved. Architectural Science Review www.arch.usyd.edu.au/asr Volume 50.3, pp 205-223 Invited Review Paper Structural Developments in Tall Buildings: Current Trends and Future Prospects Mir M. Ali† and Kyoung Sun Moon Structures Division, School of Architecture, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA †Corresponding Author: Tel: + 1 217 333 1330; Fax: +1 217 244 2900; E-mail: [email protected] Received 8 May; accepted 13 June 2007 Abstract: Tall building developments have been rapidly increasing worldwide. This paper reviews the evolution of tall building’s structural systems and the technological driving force behind tall building developments. For the primary structural systems, a new classification – interior structures and exterior structures – is presented. While most representative structural systems for tall buildings are discussed, the emphasis in this review paper is on current trends such as outrigger systems and diagrid structures. Auxiliary damping systems controlling building motion are also discussed. Further, contemporary “out-of-the-box” architectural design trends, such as aerodynamic and twisted forms, which directly or indirectly affect the structural performance of tall buildings, are reviewed. Finally, the future of structural developments in tall buildings is envisioned briefly. Keywords: Aerodynamics, Building forms, Damping systems, Diagrid structures, Exterior structures, Interior structures, Outrigger systems, Structural performance, Structural systems, Tall buildings Introduction Tall buildings emerged in the late nineteenth century in revolution – the steel skeletal structure – as well as consequent the United States of America. They constituted a so-called glass curtain wall systems, which occurred in Chicago, has led to “American Building Type,” meaning that most important tall the present state-of-the-art skyscraper.
    [Show full text]
  • Title: the Wind Engineering of the Burj Dubai Tower Author
    ctbuh.org/papers Title: The Wind Engineering of the Burj Dubai Tower Author: Peter Irwin, RWDI Subjects: Building Case Study Wind Engineering Keyword: Wind Publication Date: 2005 Original Publication: CTBUH 2005 7th World Congress, New York Paper Type: 1. Book chapter/Part chapter 2. Journal paper 3. Conference proceeding 4. Unpublished conference paper 5. Magazine article 6. Unpublished © Council on Tall Buildings and Urban Habitat / Peter Irwin Peter A. Irwin, Ph.D., P.E. Rowan Williams Davies & Irwin Peter Irwin became president of Rowan Williams Davies & Irwin in 1999. His experience in wind engineering includes extensive research and consulting in wind loading, aeroelastic response, wind tunnel methods, instrumentation, and the supervision of hundreds of wind engineering studies of major structures. Examples of tall buildings he has worked on include the Petronas Towers in Kuala Lumpur, Malaysia, the 1,666-foot (508- meter) Taipei 101 in Taiwan, and the 1,312-foot (400-meter) Two International Finance Centre, one of the tallest in Hong Kong. He is currently working on the Burj Dubai in the United Arab Emirates which will be over 2,297 feet (700 meters) tall. Dr. Irwin earned his Ph.D. in Mechanical Engineering from McGill University. He is a registered professional engineer in the provinces of Ontario, Alberta, and British Columbia, and is a fellow of the CSCE. He has published over 120 papers and won several awards for his work, including the Canadian Society for Civil Engineering’s Gzowski Medal in 1995. He serves on several committees for codes and standards, such as the Standing Committee on Structural Design for the Canadian Building Code and the wind committee of the U.S.
    [Show full text]
  • Structural Design Challenges of Shanghai Tower
    Structural Design Challenges of Shanghai Tower Author: Yi Zhu Affiliation: American Society of Social Engineers Street Address: 398 Han Kou Road, Hang Sheng Building City: Shanghai State/County: Zip/Postal Code: 200001 Country: People’s Republic of China Email Address: [email protected] Fax: 1.917.661.7801 Telephone: 011.86.21.6057.0902 Website: http://www.thorntontomasetti.com Author: Dennis Poon Affiliation: Council on Tall Buildings and Urban Habitat Street Address: 51 Madison Avenue City: New York State/County: NY Zip/Postal Code: 10010 Country: United States of America Email Address: [email protected] Fax: 1.917.661.7801 Telephone: 1.917.661.7800 Website: http://www.thorntontomasetti.com Author: Emmanuel E. Velivasakis Affiliation: American Society of Civil Engineers Street Address: 51 Madison Avenue City: New York State/County: NY Zip/Postal Code: 10010 Country: Unites States of America Email Address: [email protected] Fax: +1.917.661.7801 Telephone: +1.917.661.8072 Website: http://www.thorntontomasetti.com Author: Steve Zuo Affiliation: American Institute of Steel Construction; Structural Engineers Association of New York; American Society of Civil Engineers Street Address: 51 Madison Avenue City: New York State/County: NY Zip/Postal Code: 10010 Country: United States of America Email Address: [email protected] Fax: 1.917.661.7801 Telephone: 1.917.661.7800 Website: http://www.thorntontomasetti.com/ Author: Paul Fu Affiliation: Street Address: 51 Madison Avenue City: New York State/County: NY Zip/Postal Code: 10010 Country: United States of America Email Address: [email protected] Fax: 1.917.661.7801 Telephone: 1.917.661.7800 Website: http://www.thorntontomasetti.com/ Author Bios Yi Zhu, Senior Principal of Thornton Tomasetti, has extensive experience internationally in the structural analysis, design and review of a variety of building types, including high-rise buildings and mixed-use complexes, in both steel and concrete.
    [Show full text]
  • An All-Time Record 97 Buildings of 200 Meters Or Higher Completed In
    CTBUH Year in Review: Tall Trends All building data, images and drawings can be found at end of 2014, and Forecasts for 2015 Click on building names to be taken to the Skyscraper Center An All-Time Record 97 Buildings of 200 Meters or Higher Completed in 2014 Report by Daniel Safarik and Antony Wood, CTBUH Research by Marty Carver and Marshall Gerometta, CTBUH 2014 showed further shifts towards Asia, and also surprising developments in building 60 58 14,000 13,549 2014 Completions: 200m+ Buildings by Country functions and structural materials. Note: One tall building 200m+ in height was also completed during 13,000 2014 in these countries: Chile, Kuwait, Malaysia, Singapore, South Korea, 50 Taiwan, United Kingdom, Vietnam 60 58 2014 Completions: 200m+ Buildings by Countr5,00y 0 14,000 60 13,54958 14,000 13,549 2014 Completions: 200m+ Buildings by Country Executive Summary 40 Note: One tall building 200m+ in height was also completed during ) Note: One tall building 200m+ in height was also completed during 13,000 60 58 13,0014,000 2014 in these countries: Chile, Kuwait, Malaysia, Singapore, South Korea, (m 13,549 2014 in these Completions: countries: Chile, Kuwait, 200m+ Malaysia, BuildingsSingapore, South byKorea, C ountry 50 Total Number (Total = 97) 4,000 s 50 Taiwan,Taiwan, United United Kingdom, Kingdom, Vietnam Vietnam Note: One tall building 200m+ in height was also completed during ht er 13,000 Sum of He2014 igin theseht scountries: (Tot alChile, = Kuwait, 23,333 Malaysia, m) Singapore, South Korea, 5,000 mb 30 50 5,000 The Council
    [Show full text]
  • Aesthetics of Chinese Tall Buildings Author
    CTBUH Research Paper ctbuh.org/papers Title: Aesthetics of Chinese Tall Buildings Author: Richard Lee, Junior Partner, C.Y. Lee & Partners Architects/Planners Subjects: Architectural/Design History, Theory & Criticism Keyword: Cultural Context Publication Date: 2019 Original Publication: 2019 Chicago 10th World Congress Proceedings - 50 Forward | 50 Back Paper Type: 1. Book chapter/Part chapter 2. Journal paper 3. Conference proceeding 4. Unpublished conference paper 5. Magazine article 6. Unpublished © Council on Tall Buildings and Urban Habitat / Richard Lee Aesthetics of Chinese Tall Buildings Abstract Richard Lee CTBUH Regional Representative Partner While Western aesthetics dominate the world at this time, the rise of the East has led China to re- C.Y. Lee & Partners Architects/ examine its Eurocentric view towards aesthetics. China has been long been a fertile laboratory Planners for foreign architects to create exciting and wild structures, but this explosion has led to an Taipei, Taiwan, China urban landscape littered with tall buildings that have little, if anything to do with the indigenous Richard Lee received a bachelor’s and master’s cultural heritage. This dilemma came to the forefront in Taiwan when it envisioned creating a degree from the University of Pennsylvania. world-class supertall building that would serve as a “coming-out” to the world stage. Instead After graduation, he worked at KPF in New York, followed by Handel Architects. In 2004, Lee moved of employing a foreign architect, they chose a native Chinese architect. Drawing from Chinese to Shanghai to join C.Y. Lee & Partners. After 2006, aesthetics and sensibilities, the resulting TAIPEI 101 showed that a building could resonate with he relocated to the main office in Taipei, where the indigenous population and culture in a deeply spiritual way, while simultaneously instilling a he was promoted to junior partner in 2016.
    [Show full text]
  • The Global Tall Building Picture: Impact of 2018
    Tall Buildings in Numbers The Global Tall Building Picture: Impact of 2018 In 2018, 143 buildings of 200 meters’ height or greater were completed. This is a slight decrease from 2017’s record-breaking total of 147, and it brings the total number of 200-meter-plus buildings in the world to 1,478, marking an increase of 141 percent from 2010, and 464 percent from 2000, when only 262 existed. Asia continued to be the most dominant region in terms of skyscraper construction, and China within it, as in several years previously. For more analysis of 2018 completions, see “CTBUH Year in Review: Tall Trends of 2018,” pages 40-47. World’s Tallest Building Completed Each Year Starting with the year 2003, these are the tallest buildings that have been completed globally each year. 800 m Guangzhou CTF Finance Centre Burj Khalifa 530 m/1,739 ft 828 m/2,717 ft Dubai Guangzhou 700 m Shanghai World Financial Center Shanghai Tower Makkah Royal Clock Tower 492 m/1,614 ft 632 m/2,073 ft Two International Finance Centre 601 m/1,972 ft Ping An Finance Center Shanghai Shanghai 412 m/1,352 ft Mecca 599 m/1,965 ft Hong Kong Shenzhen 600 m One World Trade Center Trump International Hotel & Tower China Zun TAIPEI 101 541 m/1,776 ft 423 m/1,389 ft KK100 528 m/1,731 ft 508 m/1,667 ft New York City Chicago 442 m/1,449 ft Beijing Taipei Shenzhen 500 m JW Marriott Marquis Hotel Dubai Tower 2 Shimao International Plaza 355 m/1,166 ft 333 m/1,094 ft Dubai Shanghai Rose Rayhaan 400 m by Rotana Q1 Tower 333 m/1,093 ft 323 m/1,058 ft Dubai Gold Coast 300 m 200 m 100 m 2011
    [Show full text]