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Active Control of Pendulum Tuned Mass Dampers for Tall
ACTIVE CONTROL OF PENDULUM TUNED MASS DAMPERS FOR TALL BUILDINGS SUBJECT TO WIND LOAD Dissertation Submitted to The School of Engineering of the UNIVERSITY OF DAYTON In Partial Fulfillment of the Requirements for The Degree of Doctor of Philosophy in Engineering By Mohamed A. Eltaeb, M.S. UNIVERSITY OF DAYTON Dayton, Ohio December, 2017 ACTIVE CONTROL OF PENDULUM TUNED MASS DAMPERS FOR TALL BUILDINGS SUBJECT TO WIND LOAD Name: Eltaeb, Mohamed Ali APPROVED BY: ------------------------------------- ------------------------------------- Reza Kashani, Ph.D. Dave Myszka, Ph.D. Committee Chairperson Committee Member Professor Associate Professor Department of Mechanical Department of Mechanical and Aerospace Engineering and Aerospace Engineering ------------------------------------- ------------------------------------- Elias Toubia, Ph.D. Muhammad Islam, Ph.D. Committee Member Committee Member Assistant Professor Professor Department of Civil and Department of Mathematics Environmental Engineering ------------------------------------- ------------------------------------- Robert J. Wilkens, Ph.D., P.E. Eddy M. Rojas, Ph.D., M.A., P.E. Associate Dean for Research and Innovation Dean, School of Engineering Professor School of Engineering ii © Copyright by Mohamed A. Eltaeb All rights reserved 2017 ABSTRACT ACTIVE CONTROL OF PENDULUM TUNED MASS DAMPERS FOR TALL BUILDINGS SUBJECT TO WIND LOAD Name: Eltaeb, Mohamed A. University of Dayton Advisor: Dr. Reza Kashani Wind induced vibration in tall structures is an important problem that needs effective and practical solutions. TMDs in either passive, active or semi-active form are the most common devices used to reduce wind-induced vibration. The objective of this research is to investigate and develop an effective model of a single multi degree of freedom (MDOF) active pendulum tuned mass damper (APTMD) controlled by hydraulic system in order to mitigate the dynamic response of the proposed tall building perturbed by wind loads in different directions. -
Monthly Market Report
FEBRUARY 2016 MONTHLY MARKET REPORT SALES SUMMARY .......................... 2 HISTORIAL PERFORMANCE ......... 4 NOTABLE NEW LISTINGS ............. 7 SNAPSHOT ...................................... 8 CityRealty is the website for NYC real estate, providing high-quality listings and tailored agent matching for prospective apartment buyers, as well as in-depth analysis of the New York real estate market. MONTHLY MARKET REPORT FEBRUARY 2016 Summary MOST EXPENSIVE SALES The average sale price for Manhattan apartments dipped in the four weeks leading up to January 1, while the number of sales rose. The average price for an apartment—taking into account both condo and co-op sales—was $2.1 million, down from $2.2 million in the preceding month. The number of recorded sales, 1,020, rose a great deal from the 862 recorded in the preceding month. AVERAGE SALES PRICE CONDOS AND CO-OPS $30.5M 834 Fifth Avenue, #10B $2.1 Million 2 beds, 4 baths The average price of a condo was $2.7 million and the average price of a co-op was $1.4 million. There were 542 condo sales and 478 co-op sales. RESIDENTIAL SALES 1,020 $2.1B UNITS GROSS SALES One of the most expensive sales this month was in a grand, prewar co-op on the Upper East Side, while the other two were in the large new downtown condo development The Greenwich Lane. $26.0M The most expensive sale of the month was unit 10B in 834 Fifth Avenue, a two-bedroom, The Greenwich Lane, #PH8 four-bathroom apartment that closed for $30.5 million. The Rosario Candela-designed building 140 West 12th Street is considered one of the most desirable prewar co-ops in Manhattan. -
Leseprobe 9783791384900.Pdf
NYC Walks — Guide to New Architecture JOHN HILL PHOTOGRAPHY BY PAVEL BENDOV Prestel Munich — London — New York BRONX 7 Columbia University and Barnard College 6 Columbus Circle QUEENS to Lincoln Center 5 57th Street, 10 River to River East River MANHATTAN by Ferry 3 High Line and Its Environs 4 Bowery Changing 2 West Side Living 8 Brooklyn 9 1 Bridge Park Car-free G Train Tour Lower Manhattan of Brooklyn BROOKLYN Contents 16 Introduction 21 1. Car-free Lower Manhattan 49 2. West Side Living 69 3. High Line and Its Environs 91 4. Bowery Changing 109 5. 57th Street, River to River QUEENS 125 6. Columbus Circle to Lincoln Center 143 7. Columbia University and Barnard College 161 8. Brooklyn Bridge Park 177 9. G Train Tour of Brooklyn 195 10. East River by Ferry 211 20 More Places to See 217 Acknowledgments BROOKLYN 2 West Side Living 2.75 MILES / 4.4 KM This tour starts at the southwest corner of Leonard and Church Streets in Tribeca and ends in the West Village overlooking a remnant of the elevated railway that was transformed into the High Line. Early last century, industrial piers stretched up the Hudson River from the Battery to the Upper West Side. Most respectable New Yorkers shied away from the working waterfront and therefore lived toward the middle of the island. But in today’s postindustrial Manhattan, the West Side is a highly desirable—and expensive— place, home to residential developments catering to the well-to-do who want to live close to the waterfront and its now recreational piers. -
Citicorp Center + Citigroup Center + 601 Lexington (Current)
http://www.601lexington.com/gallery/?pp_fID_1156=504 Ana Larranaga | Allie McGehee | Lisa Valdivia | Madison Van Pelt | Yiwen Zhang Location: 601 Lexington Avenue + 54th Street, New York NY 10022 Other Names: CitiCorp Center + CitiGroup Center + 601 Lexington (Current) Architects: Hugh Stubbins, William LeMessurier Chief Structural Engineer: William LeMessurier Years Built: 1974 - 1977 Year Opened: 1977 Cost: $195,000,000 http://adamkanemacchia.com/gallery/home/_akm0205-edit/ - CitiCorp Center is the first skyscraper in the U.S to be built with a tuned mass damper - The tower is the 6th highest building in NYC - The building was built for commercial office - Design for the building was drawn by William LeMessurier on his restaurant napkin - The office lobby was renovated in 1997 and a new lobby was built in 2010 - The structure was being fixed secretly at night Born: January 11th, 1912 - July 5th 2006 Birthplace: Birmingham, Alabama Education: Georgia Institute of Technology(Undergrad) Harvard University (Masters) Firm: Hugh Stubbins and Associates (won one of the 1st AIA Firm Awards) Projects: CitiCorp Center, Boston’s Federal Reserve Bank, Ronald Reagan Presidential Library, Landmark tower in Yokohama Awards: Gold Medal (Tau Sigma Delta), Honor Award AIA 1979 Born: June 1926 - June 2007 Birthplace: Pontiac, Michigan Education: Harvard University(BA Mathematics), Harvard Graduate School of Design, MIT (Masters in Engineering) Firm: LeMessurier Consultants Projects: Mah - LeMessurier System, Staggered Truss System, Tuned Mass Damper, -
Modern Engineering Tools and Tech
odern engineering tools and tech- as partitions, glazing, and the façade. Beyond niques enable structural engineers any noticeable harm caused by a single large dis- STRUCTURAL to continually redefine the limits placement, the accumulation of many cycles of of possibility. Nowhere is this amplitude can also cause fatigue failures. Mmore evident than in supertall buildings, where Wind-induced movement can cause two other PERFORMANCE controlling wind-induced sway has become a significant problems that affect a building’s critical aspect of project success. usability. The first, audible creaking and groan- The use of tuned mass damping systems has ing, seems to be especially prevalent where there performance issues relative become a mainstay in attaining this control, in is the greatest amount of relative motion between to extreme events large part because each custom-designed system building parts as the building deflects. Often can be tuned to match the as-built characteristics of occurring on the lower levels, these potentially the building. They also provide a much more effi- loud noises can make even a new building sound cient solution than adding more mass or stiffness. like a rickety old ship. One recent example is the Shanghai Tower which, The most common problem, however, is the when it opened in 2014, became China’s tallest perception of movement that comes from the building and the second tallest building in the acceleration of the ®building as it sways back and world. Even though the design of the 2,073-foot forth. This is an issue that designers must address (632-meter) tower was optimized to reduce wind to ensure occupants remain comfortable even as effects, the developer also chose to include a tuned the building moves. -
Luxuryletter April 2018.Key
a 72 Mercer St, PENTHOUSE W SOHO WWW.THELEONARDSTEINBERGTEAM.COM NEW: TROPHY FIFTH AVENUE DUPLEX LUXURYLETTER APRIL 2018 Irrational Luxuberance There is really no great explanation why the wealthiest people in the world - much wealthier now than at any other time in history - are not buying more luxury real estate than ever before. Interest rates, while rising, are low, many prices are down off their (asking) highs, sellers are more inclined to negotiate on price and there are more options to choose from……although in some areas there are shortages. But yes, there are some reasons to explain why the luxury market is not faring as well as it ought to be: • Pricing escalated too far too fast. Buyer fatigue caused markets to pause and when they did, some sellers blinked causing more downward price adjustments. • Sellers were spoiled by the speed of sales: now that has normalized, yet it still feels very slow compared to the Studio-54-style pace of 2014-2016. • Most buyers between 2012 and 2015 saw an almost certain upside in buying…..these same people don’t want to take a loss buying now in case they can buy later for less. • Many buyers between 2010 and 2015 were buying purely for investment purposes: who wants to buy an investment apartment in a market where there are many price drops? Which investor likes buying in a market where rental returns are a bit depressed, especially if they can wait? The few smart, non-herd-mentality investors though are buying now because they have better choices and can negotiate. -
Analysis of Technical Problems in Modern Super-Slim High-Rise Residential Buildings
Budownictwo i Architektura 20(1) 2021, 83-116 DOI: 10.35784/bud-arch.2141 Received: 09.07.2020; Revised: 19.11.2020; Accepted: 15.12.2020; Avaliable online: 09.02.2020 © 2020 Budownictwo i Architektura Orginal Article This is an open-access article distributed under the terms of the CC-BY-SA 4.0 Analysis of technical problems in modern super-slim high-rise residential buildings Jerzy Szołomicki1, Hanna Golasz-Szołomicka2 1 Faculty of Civil Engineering; Wrocław University of Science and Technology; 27 Wybrzeże Wyspiańskiego st., 50-370 Wrocław; Poland, [email protected] 0000-0002-1339-4470 2 Faculty of Architecture; Wrocław University of Science and Technology; 27 Wybrzeże Wyspiańskiego St., 50-370 Wrocław; Poland [email protected] 0000-0002-1125-6162 Abstract: The purpose of this paper is to present a new skyscraper typology which has developed over the recent years – super-tall and slender, needle-like residential towers. This trend appeared on the construction market along with the progress of advanced struc- tural solutions and the high demand for luxury apartments with spectacular views. Two types of constructions can be distinguished within this typology: ultra-luxury super-slim towers with the exclusivity of one or two apartments per floor (e.g. located in Manhattan, New York) and other slender high-rise towers, built in Dubai, Abu Dhabi, Hong Kong, Bangkok, and Melbourne, among others, which have multiple apartments on each floor. This paper presents a survey of selected slender high-rise buildings, where structural improvements in tall buildings developed over the recent decade are considered from the architectural and structural view. -
January 2016 the Future of NYC Real Estate
January 2016 http://therealdeal.com/issues_articles/the-future-of-nyc-real-estate-2/ The Future of NYC real estate Kinetic buildings and 2,000-foot skyscrapers are just around the corner By Kathryn Brenzel The Hudson Yards Culture Shed, a yet-to-be-built arts and performance space at 10 Hudson Yards, just might wind up being the Batmobile of buildings. Dormant, it’s a glassy fortress. Animated, it will be able to extend its wings so-to-speak by sliding out a retractable exterior as a canopy. The design is a window into the future of New York City construction — and the role technology will play. This isn’t to say that a fleet of moving buildings will invade New York anytime soon, but the projects of the future will be smarter, more adaptive and, of course, more awe-inspiring. “I think you’re going to start having more and more facades that are more kinetic, that react to the environment,” said Tom Scarangello, CEO of Thornton Tomasetti, a New York-based engineering firm that’s working on the Culture Shed. For example, Westfield’s Oculus, the World Trade Center’s new bird-like transit hub, features a retractable skylight whose function is more symbolic than practical: It opens only on Sept. 11. As a whole, developers are moving away from the shamelessly reflective glass boxes of the past, instead opting for transparent-yet-textured buildings as well as slender, soaring towers à la Billionaires’ Row. They are already beginning to experiment with different building materials, such as trading steel for wood in the city’s first “plyscraper,” which is being planned at 475 West 18th Street. -
List of World's Tallest Buildings in the World
Height Height Rank Building City Country Floors Built (m) (ft) 1 Burj Khalifa Dubai UAE 828 m 2,717 ft 163 2010 2 Shanghai Tower Shanghai China 632 m 2,073 ft 121 2014 Saudi 3 Makkah Royal Clock Tower Hotel Mecca 601 m 1,971 ft 120 2012 Arabia 4 One World Trade Center New York City USA 541.3 m 1,776 ft 104 2013 5 Taipei 101 Taipei Taiwan 509 m 1,670 ft 101 2004 6 Shanghai World Financial Center Shanghai China 492 m 1,614 ft 101 2008 7 International Commerce Centre Hong Kong Hong Kong 484 m 1,588 ft 118 2010 8 Petronas Tower 1 Kuala Lumpur Malaysia 452 m 1,483 ft 88 1998 8 Petronas Tower 2 Kuala Lumpur Malaysia 452 m 1,483 ft 88 1998 10 Zifeng Tower Nanjing China 450 m 1,476 ft 89 2010 11 Willis Tower (Formerly Sears Tower) Chicago USA 442 m 1,450 ft 108 1973 12 Kingkey 100 Shenzhen China 442 m 1,449 ft 100 2011 13 Guangzhou International Finance Center Guangzhou China 440 m 1,440 ft 103 2010 14 Dream Dubai Marina Dubai UAE 432 m 1,417 ft 101 2014 15 Trump International Hotel and Tower Chicago USA 423 m 1,389 ft 98 2009 16 Jin Mao Tower Shanghai China 421 m 1,380 ft 88 1999 17 Princess Tower Dubai UAE 414 m 1,358 ft 101 2012 18 Al Hamra Firdous Tower Kuwait City Kuwait 413 m 1,354 ft 77 2011 19 2 International Finance Centre Hong Kong Hong Kong 412 m 1,352 ft 88 2003 20 23 Marina Dubai UAE 395 m 1,296 ft 89 2012 21 CITIC Plaza Guangzhou China 391 m 1,283 ft 80 1997 22 Shun Hing Square Shenzhen China 384 m 1,260 ft 69 1996 23 Central Market Project Abu Dhabi UAE 381 m 1,251 ft 88 2012 24 Empire State Building New York City USA 381 m 1,250 -
The Bloom Is on the Roses
20100426-NEWS--0001-NAT-CCI-CN_-- 4/23/2010 7:53 PM Page 1 INSIDE IT’S HAMMERED TOP STORIES TIME Journal v. Times: Story NY’s last great Page 3 Editorial newspaper war ® Page 10 PAGE 2 With prices down and confidence up, VOL. XXVI, NO. 17 WWW.CRAINSNEWYORK.COM APRIL 26-MAY 2, 2010 PRICE: $3.00 condo buyers pull out their wallets PAGE 2 The bloom is on the Roses Not bad for an 82-year-old, Adam Rose painted a picture of a Fabled real estate family getting tapped third-generation-led firm that is company that has come a surpris- for toughest property-management jobs known primarily as a residential de- ingly long way from its roots as a veloper. builder and owner of upscale apart- 1,230-unit project.That move came In a brutal real estate market, ment houses. BY AMANDA FUNG just weeks after Rose was brought in some of New York’s fabled real es- Today, Rose Associates derives as a consultant—and likely future tate families are surviving and some the bulk of its revenues from a broad just a month after Harlem’s River- manager—for another distressed are floundering, but few are blos- menu of offerings. It provides con- A tale of 2 eateries: ton Houses apartment complex was residential property, the vast soming like the Roses.In one of the sulting for other developers—in- taken over, owners officially tapped Stuyvesant Town/Peter Cooper Vil- few interviews they’ve granted,first cluding overseeing distressed prop- similar starts, very Rose Associates to manage the lage complex in lower Manhattan. -
Abu Dhabi Report H22012
Abu Dhabi Report H2 2012 “2012 was a pivotal year for the Abu Dhabi real estate market with the delivery of significant new developments which have raised the quality of living and working standards in the capital. The residential sub-sectors are now becoming more clearly defined by qualitative factors with tenants seeking value for money. In 2013 we expect to see a widening segregation in rental rates between the popular new developments, which, with occupancy levels rising, will be able to sustain rental levels and in some cases achieve growth, and the less popular older stock, that will continue to see rents come under downward pressure as landlords compete to maintain occupancy.“ Paul Maisfield, Associate Director & General Manager Abu Dhabi, Asteco Property Management Abu Dhabi Supply Estimates 2012 New Supply 2013 Scheduled New Supply Average Apartment Rental Rates (AED’000/pa) Apartments (in units) 9,000 12,000 Studio 1 BR 2 BR 3 BR Villas (in units) 6,000 5,000 From To From To From To From To Offices (in m2) 312,000 290,000 Marasy -- 87 110 135 170 185 237 Marina Square 55 65 75 85 110 130 140 180 Nation Towers - - 95 100 145 170 165 300 Reef Downtown - - 55 65 70 75 85 95 Residential Market Overview Rihan Heights -- 95 122 130 150 155 190 We estimate that approximately 15,000 new homes have been delivered to the Abu Dhabi market Saadiyat Beach Apartments -- 81 128 130 163 165 206 over the course of 2012, with a further 17,000 scheduled for completion in 2013. -
Tall Buildings Tall Building Projects Worldwide
Tall buildings Safe, comfortable and sustainable solutions for skyscrapers ©China Resources Shenzhen Bay Development Co., Ltd ©China Resources Tall building projects worldwide Drawing upon our diverse skillset, Arup has helped define the skylines of our cities and the quality of urban living and working environments. 20 2 6 13 9 1 7 8 16 5 11 19 3 15 10 17 4 12 18 14 2 No. Project name Location Height (m) 1 Raffles City Chongqing 350 ©Safdie Architect 2 Burj Al Alam Dubai 510 ©The Fortune Group/Nikken Sekkei 3 UOB Plaza Singapore 274 4 Kompleks Tan Abdul Razak Penang 232 5 Kerry Centre Tianjin 333 ©Skidmore Owings & Merrill 6 CRC Headquarters Shenzhen 525 ©China Resources Shenzhen Bay Development Co Ltd 7 Central Plaza Hong Kong 374 8 The Shard London 310 9 Two International Finance Centre Hong Kong 420 10 Shenzhen Stock Exchange Shenzhen 246 ©Marcel Lam Photography 11 Wheelock Square Shanghai 270 ©Kingkay Architectural Photography 12 Riviera TwinStar Square Shanghai 216 ©Kingkay Architectural Photography 13 China Zun (Z15) Beijing 528 ©Kohn Pederson Fox Associates PC 14 HSBC Main Building Hong Kong 180 ©Vanwork Photography 15 East Pacific Centre Shenzhen 300 ©Shenzhen East Pacific Real Estate Development Co Ltd 16 China World Tower Beijing 330 ©Skidmore, Owings & Merrill 17 Commerzbank Frankfurt 260 ©Ian Lambot 18 CCTV Headquarters Beijing 234 ©OMA/Ole Scheeren & Rem Koolhaas 19 Aspire Tower Doha 300 ©Midmac-Six Construct 20 Landmark Tower Yongsan 620 ©Renzo Piano Building Workshop 21 Northeast Asia Trade Tower New Songdo City 305 ©Kohn Pedersen Fox Associates PC 22 Guangzhou International Finance Centre Guangzhou 432 ©Wilkinson Eyre 23 Torre Reforma Mexico 244 ©L Benjamin Romano Architects 24 Chow Tai Fook Centre Guangzhou 530 ©Kohn Pederson Fox Associates PC 25 Forum 66 Shenyang 384 ©Kohn Pedersen Fox Associates PC 26 Canton Tower Guangzhou 600 ©Information Based Architecture 27 30 St.