4th UNIVERSITI INDUSTRI SELANGOR'S CONVOCATION (31 October - 1 November)





On behalf of all GMK's member we would like to congrats all of this year graduates a HAPPY GRADUATION DAY. now all your hard work is paid off. time to get on with your life and be successful. have fun and take a lots of pictures!!!!




*Jon Mclaughlin: 4 Years

They tore my high school to the ground and
put a new wing in the east lot
On my old parking spot
It stands reminding me of how
I wish that i could travel back in time
Change my state of mind

So if you're still in your teens listen to me

It's hard to see beyond these walls
Of who (who) and who not to be
Socially
Maybe you're in you're out
But in the end when all your hats are in the air
Nobody's gonna care

So fair the weight
Freshmen hold on
It's only four years long
Then it's gone
And the queen of the nerds and the king of the prom get a job
Look at them now
She's living her dreams while he sleeps with his crown
So be cool, be hot, be weird
It's just four years

Next time you're walking through your school
Take at who's surrounding you
Or hounding you
Cause it's all just castles in the sand
When your tassel's on the left side of your head
You're never going back

So hope (?)
It's only four years long
Then it's gone
And the king of the nerds and the queen of the prom get a job
What did you know?
He's a CEO and she answers his phone
So be cool, be hot, be weird
It's just four years

And as for your grades I know they're important
Everyone wants to be a wiz
Cause all of it goes on permanent transcripts
I just don't know where mine is

So fair the weight
Freshmen hold on cause every homecoming court moves on
It's only four years long
Then it's gone
And the queen of the nerds and the king of the prom get a job
Look at them now
She's living her dreams while he sleeps with his crown
So be cool, be hot, be weird oh
So be hot, be wild, you're here oh
Be cool, be hot, be weird
It's just four years


PROTON'S LATEST PROJECT: TURBO ENGINE DERIVES FROM REGULAR CAMPRO'S

By Muhammad Huzairy
Proton Turbo Engine

I've recently browsing this very interesting car review website and was reading an interesting new project by our national car maker PROTON. this latest engine is to turbocharge the existing regular campro engine to produce an output similar to 2.0 liter engine power capacity. (the regular campro is 1.6 liter). turbocharged engine, a 150 horse power figure would probably be accompanied by 220Nm to 240Nm (2.0 liter engine normally aspirated around 140 to 150 horsepower.)

now..whats interesting is that a group of 70 engineers from proton were sent to lotus engineering in the uk. this is a good afford since lotus is one of the best carmaker around and fully own by proton, but even lotus cars used engine from toyota hehehehehe... i'm guessing both of them are learning something new...



the engine is due 2011..

more information go to www.paultan.org or http://paultan.org/topics/cars/malaysian-makes/proton/

p/s: the newscaster mention the output horsepower is 1600... is she crazy or what

Lotus Engineering’s new Versatile Vehicle Architecture (source: paultan.org) – INTERESTING STUFF TO READ

Evora Vva Pages            

MATLAB BASIC WORKSHOP




MATLAB BASIC WORKSHOP

DATE : 21 NOVEMBER 2009

TIME : 9.00 AM - 5.00 PM

VANUE : AUTOMATION LAB , FACULTY OF ENGINEERING

FEE : RM 5.00 PER PARTICIPANT

INTRESTED...PLEASE CONTACT

FITRI - 0125465725



COURSE OUTLINE :

MODULE 1 : INTRODUCTION TO MATLAB
- Introduce to MATLAB user interface
- Introduce to MATLAB variables and expession
- Plotting the graph


MODULE 2 : APPLICATION OF MATLAB
- Application in Control System
- Application in Fuzzy Logic

Happy Deepavali



Happy Deepavali to all student and lecturer.....from Gabungan Mahasiswa Kejuruteraan Unisel

Taipei 101 - Taipei Skyscraper



Taipei 101 (traditional Chinese: 台北101 / 臺北101), also known as the Taipei Financial Center, is a landmark skyscraper located in Xinyi District, Taipei, Taiwan. The building, designed by C.Y. Lee & Partners and constructed primarily by KTRT Joint Venture and Samsung Engineering & Construction is the world's tallest completed skyscraper according to the Council on Tall Buildings and Urban Habitat, the arbiter of tall building height. Taipei 101 received the Emporis Skyscraper Award in 2004. It has been hailed as one of the Seven New Wonders of the World (Newsweek magazine, 2006) and Seven Wonders of Engineering (Discovery Channel, 2005).The tower has become an icon of modern Taiwan. Fireworks launched from Taipei 101 feature prominently in international New Year's Eve broadcasts and the structure appears frequently in travel literature and international media.

The building contains 101 floors above ground and 5 floors underground. The name of the tower, pronounced simply as "one oh one" in English, reflects its floor count and carries additional symbolism in technology and Asian tradition .The structure's postmodern style gives a modern treatment to traditional features and invokes both Asian and international style elements. The tower is designed to withstand typhoons and earthquakes. A multi-level shopping mall adjoining the tower houses hundreds of fashionable stores, restaurants and clubs.

Taipei 101 is owned by the Taipei Financial Center Corporation and managed by the International division of Urban Retail Properties Corporation based in Chicago. The name originally planned for the building, Taipei World Financial Center, was derived from the name of the owner. The original name in Chinese was literally, Taipei International Financial Center (traditional Chinese: 臺北國際金融中心; pinyin: Táiběi Guójì Jīnróng Zhōngxīn).

Taipei 101 was overtaken in height on July 21, 2007 by the Burj Dubai in Dubai, UAE, upon the completion of that building's 141st floor. The title of "world's tallest building" still rests with Taipei 101, however, as international architectural standards define a "building" as a completed structure capable of being occupied. The Burj Dubai is expected to reach completion in December 2009.

Features

Height


Height comparison of Taipei 101 with the Willis Tower, the Petronas Towers, and the Empire State Building.

Taipei 101 has 101 stories above ground and five underground. Upon its completion Taipei 101 claimed the official records for:
  • Ground to highest architectural structure (spire): 509.2 metres (1,670.60 ft). Previously held by the Petronas Towers 452 m (1,483 ft).
  • Ground to roof: 449.2 m (1,473.75 ft). Formerly held by the Willis Tower 442 m (1,450 ft).
  • Ground to highest occupied floor: 439.2 m (1,440.94 ft). Formerly held by the Willis Tower 412.4 m (1,353 ft).
  • Fastest ascending elevator speed: 16.83 m/s (55.22 ft/s) (60.6 km/h, 37.7 mi/h).
  • Largest countdown clock: On display every New Year's Eve.
  • Tallest sundial. (See 'Symbolism' below.)
The record for greatest height from ground to pinnacle remains with the Willis Tower in Chicago (USA): 527 m (1,729 ft). In 2008, the Shanghai World Financial Center overtook Taipei 101 in roof height and highest occupied floor.

Taipei 101 was the first building in the world to break the half-kilometer mark in height.It was the first "world's tallest building" to be constructed in the new millennium.

Taipei 101 displaced the Petronas Towers in Kuala Lumpur, Malaysia, as the tallest building in the world by 57.2 m (188 ft). It also displaced the 85-story, 347.5 m (1,140 ft) Tuntex Sky Tower in Kaohsiung as the tallest building in Taiwan and the 51-story, 244.2 m (801 ft) Shin Kong Life Tower as the tallest building in Taipei.


Taipei 101 endures a typhoon

Various sources, including the building's owners, give the height of Taipei 101 as 508.0 m (1,667 ft), roof height and top floor height as 448.0 m (1,470 ft) and 438.0 m (1,437 ft). This lower figure is derived by measuring from the top of a 1.2 m (4 ft) platform at the base. CTBUH standards, though, include the height of the platform in calculating the overall height, as it represents part of the man-made structure and is above the level of the surrounding pavement.

Construction


Location of Taipei 101's largest tuned mass damper.


The main tuned mass damper
at top Taipei 101

Taipei 101 is designed to withstand the typhoon winds and earthquake tremors common in its area of the Asia-Pacific. Planners aimed for a structure that could withstand gale winds of 60 m/s (197 ft/s, 216 km/h, 134 mi/h) and the strongest earthquakes likely to occur in a 2,500 year cycle.



Skyscrapers must be flexible in strong winds yet remain rigid enough to prevent large sideways movement (lateral drift). Flexibility prevents structural damage while resistance ensures comfort for the occupants and protection of glass, curtain walls and other features. Most designs achieve the necessary strength by enlarging critical structural elements such as bracing. The extraordinary height of Taipei 101 combined with the demands of its environment called for additional innovations on the part of engineers.

The design achieves both strength and flexibility for the tower through the use of high-performance steel construction. Thirty-six columns support Taipei 101, including eight "mega-columns" packed with 10,000-psi concrete.Every eight floors, outrigger trusses connect the columns in the building's core to those on the exterior.

These features combine with the solidity of its foundation to make Taipei 101 one of the most stable buildings ever constructed. The foundation is reinforced by 380 piles driven 80 m (262 ft) into the ground, extending as far as 30 m (98 ft) into the bedrock. Each pile is 1.5 m (5 ft) in diameter and can bear a load of 1,000 metric tons (1,100 short tons) - 1,320 metric tons (1,460 short tons).The stability of the design became evident during construction when, on March 31, 2002, a 6.8-magnitude earthquake rocked Taipei. The tremor was strong enough to topple two construction cranes from the 56th floor, then the highest, and killed five people in the accident. An inspection afterwards showed no structural damage to the building and construction soon resumed.

Thornton-Tomasetti Engineers along with Evergreen Consulting Engineering designed a 660 metric tons (728 short tons)steel pendulum that serves as a tuned mass damper, at a cost of NT$132 million (US$4 million).Suspended from the 92nd to the 88th floor, the pendulum sways to offset movements in the building caused by strong gusts. Its sphere, the largest damper sphere in the world, consists of 41 circular steel plates, each with a height of 125 mm (4.92 in) being welded together to form a 5.5 m (18 ft) diameter sphere.Another two tuned mass dampers, each weighing 6 metric tons (7 short tons),sit at the tip of the spire. These prevent damage to the structure due to strong wind loads.

Taipei 101's characteristic blue-green glass curtain walls are double glazed, offer heat and UV protection, and can sustain impacts of 7 metric tons (8 short tons).

Symbolism


Shadow of Taipei 101 tower in the late afternoon. The adjoining park (bottom) acts as the face of a sundial.

Taipei 101, like all spire structures, participates in the symbolism of the axis mundi: a world center where earth and sky meet and the four compass directions join.

The height of 101 floors commemorates the renewal of time: the new century that arrived as the tower was built (100+1) and all the new years that follow (January 1 = 1-01). It symbolizes high ideals by going one better on 100, a traditional number of perfection. The number also evokes the binary numeral system used in digital technology. 

The main tower features a series of eight segments of eight floors each. In Chinese-speaking cultures the number eight is associated with abundance, prosperity and good fortune. In cultures that observe a seven-day week the number eight symbolizes a renewal of time (7+1). In digital technology the number eight is associated with the byte, being 8 bits. A bit is the basic unit of information.

The repeated segments simultaneously recall the rhythms of an Asian pagoda (a tower linking earth and sky, also evoked in the Petronas Towers), a stalk of bamboo (an icon of learning and growth), and a stack of ancient Chinese ingots or money boxes (a symbol of abundance). The four discs mounted on each face of the building where the pedestal meets the tower represent coins. The emblem placed over entrances shows three gold coins of ancient design with central holes shaped to imply the Arabic numerals 1-0-1.





Ruyi figure over a Taipei 101 entrance

Curled ruyi figures appear throughout the structure as a design motif. The ruyi is an ancient symbol associated with heavenly clouds. It connotes healing, protection and fulfilment. It appears in celebrations of the attainment of new career heights.Each ruyi ornament on the exterior of the Taipei 101 tower stands at least 8 m (26 ft) tall. The sweeping curved roof of the adjoining mall culminates in a colossal ruyi that shades pedestrians. Though the shape of each ruyi at Taipei 101 is traditional, its metallic interpretation is plainly modern.

At night the bright yellow gleam from its pinnacle casts Taipei 101 in the role of a candle or torch upholding the ideals of liberty and welcome. From 6:00 to 10:00 each evening the tower's lights display one of seven colours in the spectrum. The colours coincide with the days of the week:



Day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Color
Red
Orange
Yellow
Green
Blue
Indigo
Violet


The cycle through the spectrum connects the tower with the rich symbolism of rainbows as bridges linking earth to sky and earth's peoples to one another.

Millennium Park adjoins Taipei 101 on the east and connects the landmark further with the symbolism of time. The design of the circular park allows it to double as the face of a sundial. The tower itself casts the shadow to indicate afternoon hours for the building's occupants. The park's design is echoed in a clock that stands at its entrance. The clock runs on energy drawn from the building's wind shear.


Feng shui fountain outside Taipei 101

Taipei 101, like many of its neighbours, shows the influence of feng shui philosophy. An example appears in the form of a large granite fountain at the intersection of Songlian Road and Xinyi Road near the tower's east entrance.A ball at the fountain's top spins toward the tower. As a work of public art, the fountain offers a contrast to the tower in texture even as its design echoes the tower's rhythms. Yet the fountain also serves a practical function in feng shui philosophy. A T intersection near the entrance of a building represents a potential drain of positive energy, or ch'i, from a structure and its occupants. Flowing water placed at such spots remedy the situation by generating a positive inward flow of ch'i. The fountain applies a traditional solution to a traditional challenge yet its design remains modern.

Taipei 101 merges ancient motifs and ideas with modern techniques and materials. As a landmark it renews the symbolism of all tall towers as cosmic centers. Its interplaying symbols speak of optimism, abundance, and the ever-renewing cycles of time.

Interior


Taipei 101 Mall

Taipei 101 is the first record-setting skyscraper to be constructed in the twenty-first century. Appropriately it exhibits a number of technologically advanced features as it provides a center for business and recreation.
The original 2004 fiber-optic and satellite Internet connections permitted transfer speeds up to a gigabyte per second.

The double-deck elevators built by the Japanese Toshiba Elevator and Building Systems Corporation (TELC) set a new record in 2004 with top ascending speeds of 16.83 m (55.22 ft) per second (60.6 km/h, 37.7 mi/h). This speed is 34.7 percent faster than the previous record holders of the Yokohama Landmark Tower elevator, Yokohama, Japan, which speeds of 12.5 m (41 ft) per second (45.0 km/h, 28.0 mi/h). Taipei 101's elevators sweep visitors from the fifth floor to the 89th-floor observatory in only 37 seconds.Each elevator features an aerodynamic body, full pressurization, state-of-the art emergency braking systems, and the world's first triple-stage anti-overshooting system. The cost for each elevator is NT$80 million (US$2.4 million).

A 660 metric ton (728 short ton) tuned mass damper stabilizes the tower against movements caused by high winds. The damper can reduce up to 40% of the tower's movements .

The observatories are located in the 91st and 89th floors.

Two restaurants have opened on the 85th floor: Diamond Tony's, which offers European-style seafood and steak, and Shin Yeh 101 (欣葉), which offers Taiwanese-style cuisine. Occupying all of the 86th floor is Japanese restaurant XEX.




The multi-story retail mall adjoining the tower is home to hundreds of fashionable stores, restaurants, clubs and other attractions. The mall's interior is modern in design even as it makes use of traditional elements. The curled ruyi symbol is a recurring motif inside the mall. Many features of the interior also observe feng shui traditions.

Observatories

Taipei 101 features an Indoor Observatory (89th floor) and an Outdoor Observatory (91st floor).[24] Both offer 360-degree views and attract visitors from around the world.

The Indoor Observatory stands 383.4 m (1,258 ft) above ground. The elevator, running at 1010 meters per minute, takes visitors from the 5th floor to the 89th floor in 37 seconds. The Indoor Observatory offers a comfortable environment, large windows with UV protection, recorded voice tours in eight languages, and informative displays and special exhibits. Here one may view the skyscraper's main damper, nicknamed "Damper Baby", and buy food, drinks and gift items.

Two more flights of stairs take visitors up to the Outdoor Observatory. The Outdoor Observatory, at 391.8 m (1,285 ft) above ground, is the second-highest observation deck ever provided in a skyscraper and the highest such platform in Taiwan.

The Indoor Observatory is open twelve hours a day (10:00 am–10:00 pm) throughout the week as well as on special occasions; the Outdoor Observatory is open during the same hours as weather permits. Tickets may be purchased on site in the shopping mall (5th floor) or in advance through the Observatory's web site .Tickets cost NT$400 (US$13) and allow access to the 88th through 91st floors via high-speed elevator.

Art

Many works of art appear in and around Taipei 101. These include:
  • Rebecca Horn (Germany). Dialogue between Yin and Yang. 2002. Steel, iron.
  • Robert Indiana (USA). Love and 1-0. 2002. Aluminum.
  • Ariel Moscovici (France). Between Earth and Sky. 2002. Rose de la claret granite.
  • Chung Pu (Taiwan). Global Circle. 2002. Black granite, white marble.
  • Jill Watson (Britain). City Composition. 2002. Bronze.
The Indoor Observatory hosts a regular series of exhibitions. The artists represented include Wu Ching (gold sculpture), Ping-huang Chang (traditional painting) and Po-lin Chi (aerial photography).

Tenants

A number of enterprises maintain offices in Taipei 101. A few that have been featured in public announcements include these:
  • ABN AMRO Bank, 1/F
  • Anthony's Group Holding Company Ltd, 37/F
  • Bayer Taiwan, 53/F - 54/F
  • The Boston Consulting Group, 61/F
  • Cosmos Bank, 5th Floor
  • DBS Bank Ltd, 28/F, Unit B
  • Emirates Advocates Taiwan (Emirates Trade Commission)
  • The Executive Centre, 37/F
  • Fulland Securities Consultant Company Ltd (a Hantec Group subsidiary), 24/F
  • GoldBank of Taiwan
  • Google Taiwan, 73/F
  • HVB Bank
  • ING Antai
  • ING SITE (affiliate of Internationale Nederlanden Groep N.V., or ING)
  • ING SCE (affiliate of Internationale Nederlanden Groep N.V., or ING)
  • Jones Lang LaSalle
  • KPMG
  • McKinsey & Company Taiwan
  • PeopleSearch Taiwan
  • People's King
  • SABIC Asia Pacific Pte Ltd
  • Starbucks Coffee
  • Taiwan Ratings Corporation
  • Taiwan Stock Exchange Corporation (TSEC)
  • Winterthur Life Taiwan
Restaurants in the tower include XEX, Diamond Tony's and Shin Yeh 101 (欣葉).Hundreds of international dining establishments and retail outlets also operate in the adjoining mall.

Chronology

Important dates in the planning and construction of Taipei 101 include the following:
Date
Event
October 20, 1997
Development and operation rights agreement signed with Taipei City government.
January 13, 1998
Ground-breaking ceremony.
August 10, 1998
Construction license awarded for 101 stories.
April 13, 1999
Design change to 509.2 m height approved by Taipei City government.
June 7, 2000
First tower column erected.
June 13, 2001
Taipei 101 Mall topped out.
May 13, 2003
Taipei 101 Mall obtains occupancy permit.
July 1, 2003
Taipei 101 Tower roof completed.
October 17, 2003
Pinnacle placed.
November 14, 2003
Taipei 101 Mall opens.
April 15, 2004
Council on Tall Buildings and Urban Habitat (CTBUH) certifies Taipei 101 as world's tallest building.
November 12, 2004
Tower obtains occupancy permit.
December 31, 2004
Tower opens to the public.
January 1, 2005
First New Year fireworks show begins at midnight.

History



Taipei 101's Millennium Park (seen from the Indoor Observatory, noon)

Planning for Taipei 101 began in 1997 during Chen Shui-bian's term as Taipei mayor. Talks between merchants and city government officials initially centered on a proposal for a 66-story tower to serve as an anchor for new development in Taipei's 101 business district. By the time the ground-breaking ceremony took place on January 13, 1998 planners were considering taking the new structure to a more ambitious height. Ten months later the city granted a license for the construction of a 101-story tower on the site. Construction proceeded and the first tower column was erected in summer 2000.

Taipei 101's roof was completed three years later on July 1, 2003. Ma Ying-jeou, in his first term as Taipei mayor, fastened a golden bolt to signify the achievement. Three months later the pinnacle was placed.
The formal opening of the tower took place on New Year's Eve 2004. President Chen Shui-bian, Taipei Mayor Ma Ying-jeou and Legislative Speaker Wang Jin-pyng cut the ribbon. Open-air concerts featured a number of popular performers, including singers A-Mei and Sun Yan Zi. Visitors rode the elevators to the Observatory for the first time. A few hours later the first fireworks show at Taipei 101 heralded the arrival of a new year.

Events

Taipei 101 is the site of innumerable special events. Art exhibits, as noted above, regularly take place in the Observatory. A few noteworthy dates since the tower's opening include these.
  • December 25, 2004 - French rock and urban climber Alain Robert makes an authorized climb to the top of the pinnacle in four hours.
  • February 28, 2005 - Former American president Bill Clinton visits and signs copies of his autobiography.
  • April 19, 2005 - Tower displays the formula E=mc2 in lights to celebrate the 100th anniversary of the publication of Einstein's theory of relativity. The display, the largest of 65,000 such displays in 47 countries, is part of the international celebration Physics Enlightens the World.
  • November 20, 2005 - First annual Taipei 101 Run Up features a race up the 2,046 steps from floors 1 to 91. Proceeds benefit Taiwan's Olympic teams. Men's race is won by Paul Crake of Australia (10 minutes, 29 seconds) and women's race by Andrea Mayr of Austria (12 minutes, 38 seconds).
  • October 20, 2006 - Tower displays a pink ribbon in lights to promote breast cancer awareness. The ten-day campaign is sponsored by Taipei 101's ownership and Estée Lauder.
  • December 12, 2007 - Austrian base jumper Felix Baumgartner survives an unauthorized parachute jump from Taipei 101's 91st floor.
  • June 15, 2008 - Taipei 101 Run Up features 2,500 participants. Men's race is won by Thomas Dold of Germany (10 minutes, 53 seconds); 2007 champion Marco De Gasperi of Italy finishes second and Chen Fu-tsai of Taiwan finishes third. Women's race is won by Lee Hsiao-yu of Taiwan (14 minutes, 53 seconds).

New Year's Eve fireworks

Since 2003, Taipei 101 has turned off the lights from the lower parts to the upper parts to count down for the new year; After 2007, it changed to lighting the building up from the lower parts to the upper parts.
  • 2003–2004: Spinning lights were temporarily placed on the floor 91 for the sound and light show, but no fireworks were used.
  • 2004–2005: The first fireworks display after the building was completed. The whole show last for 35 seconds and the fireworks were shot from a balcony.
  • 2005–2006: Lengthened the time of the fireworks display, from 35 seconds to 128 seconds. Dozens of entertainers attended the 5-hour-long New Year's Eve party. Sony sponsored the event, its advertisement was placed on the building after the fireworks display.
  • 2006–2007: The sponsor was again Sony and the time was extended again, to 188 seconds. The budget for the event was about $1,000,000.
  • 2007–2008: Further expansion, not of the duration, but the number of fireworks. There were 9,000 fireworks used in the previous year, but this year 12,000 were used.
  • 2008–2009: The main theme was "Love Taiwan With Your Heart In 2009". Four colours, red, blue, green and yellow, represented happiness, macroscopic views, sustainability, and passion, respectively.

Proposed Projects

Taipei 202 (traditional Chinese: 臺北202 or 台北202) is a proposed 202-story skyscraper to be built in Taipei, Taiwan. Planners have said that the building may be built in Taipei City's proposed Financial District to be located in the Zhongzheng and Daan districts, or may be built alongside Taipei 101.

Burj Dubai - World Tallest Skyscraper




Burj Dubai (Arabic: برج دبي‎ "Dubai Tower"), a supertall skyscraper under construction in Dubai, United Arab Emirates, is the tallest man-made structure ever built, at 818 m (2,684 ft). Construction began on 21 September 2004, and the tower is expected to be completed and ready for occupancy by the end of 2009.


The building is part of the 2 km2 (0.8 sq mi) flagship development called "Downtown Burj Dubai" at the "First Interchange" along Sheikh Zayed Road, near Dubai's main business district. The tower's architect is Adrian Smith, who worked with Skidmore, Owings and Merrill (SOM) until 2006.The Chicago-based architecture and engineering firm SOM is in charge of the project.The primary builders are Samsung Engineering & Construction and Besix along with Arabtec.Turner Construction Company was chosen as the construction manager.


The total budget for the Burj Dubai project is about US$4.1 billion, and for the entire new "Downtown Dubai", US$20 billion.Mohamed Ali Alabbar, the CEO of Emaar Properties, speaking at the Council on Tall Buildings and Urban Habitat 8th World Congress, said that the price of office space at Burj Dubai had reached US$4,000 per sq ft (over US$43,000 per m2) and that the Armani Residences, also in Burj Dubai, were selling for US$3,500 per sq ft (over US$37,500 per m2).

Height

Timeline

  • 21 September 2004: Emaar contractors begin construction.
  • February 2007: Surpasses the Sears Tower (since renamed to the Willis Tower) as the building with the most floors.
  • 13 May 2007: Sets record for vertical concrete pumping on any building at 452 m (1,483 ft), surpassing the 449.2 m (1,474 ft) to which concrete was pumped during the construction of Taipei 101.
  • 21 July 2007: Surpasses Taipei 101, whose height of 509.2 m (1,671 ft) made it the world’s tallest building.
  • 12 August 2007: Surpasses the Sears Tower (Willis Tower) antenna, which stands 527.3 m (1,730 ft).
  • 3 September 2007: Becomes the second-tallest freestanding structure, surpassing the 540 m (1,772 ft) Ostankino Tower in Moscow.
  • 12 September 2007: At 555.3 m (1,822 ft), becomes the world's tallest freestanding structure, surpassing the CN Tower in Toronto.
  • 7 April 2008: At 629 m (2,064 ft), surpasses the KVLY-TV Mast to become the tallest man-made structure.
  • 17 June 2008: Emaar announces that Burj Dubai's height is over 636 m (2,087 ft) and that its final height will not be given until it is completed in September 2009.
  • 1 September 2008: Height tops 688 m (2,257 ft), making it the tallest man-made structure ever built, surpassing the previous record-holder, the Warsaw Radio Mast in Konstantynów, Poland.
  • 17 January 2009: Topped out at 818 m (2,684 ft).
  • 1 October 2009: Emaar announces that the exterior of the building is completed.

Current records

  • Tallest structure: 818 m (2,684 ft) (previously KVLY-TV mast - 628.8 m (2,063 ft))
  • Tallest freestanding structure: 818 m (2,684 ft) (previously CN Tower - 553.3 m (1,815 ft))
  • Building with most floors: 160 (previously World Trade Center - 110)
  • World's highest elevator installation
  • Worlds fastest elevators at speed of 64 km/h or 18 m/s (59 ft/s)(previously Taipei 101 – 16.83 m/s)
  • Highest vertical concrete pumping (for a building): 601 m (1,972 ft) (previously Taipei 101 - 449.2 m (1,474 ft))
  • Highest vertical concrete pumping (for any construction): 601 m (1,972 ft)(previously Riva del Garda Hydroelectric Power Plant - 532 m (1,745 ft))
  • The first world's tallest structure in history to include residential space
Note: Additional records for tallest skyscraper are considered unofficial. On 20 July 2007, the head of the Council on Tall Buildings and Urban Habitat (CTBUH), Antony Wood, said "We will not classify it as a building until it is complete, clad and at least partially open for business to avoid things like the Ryungyong [sic] project. Taipei 101 is thus officially the world's tallest until that happens."

History of height increases


Burj Dubai compared to some other well-known tall structures.


A visual comparison of Burj Dubai's (far right) height with that of surrounding buildings at dusk.

Though unconfirmed, Burj Dubai has been rumoured to have undergone several planned height increases since its inception. Originally proposed as a virtual clone of the 560 m (1,837 ft) Grollo Tower proposal for Melbourne, Australia's Docklands waterfront development, the tower was redesigned with an original design by Skidmore, Owings and Merrill discussed below. Marshall Strabala, an SOM architect who worked on the project until 2006, recently said that Burj Dubai was designed to be 808 m (2,650 ft) tall.However, contradictory information abounds regarding the official height of the building, and it will only acquire the title of world's tallest building upon completion in 2009.

The design architect, Adrian Smith, felt that the uppermost section of the building did not culminate elegantly with the rest of the structure, so he sought and received approval to increase it to the currently planned height. It has been explicitly stated that this change did not include any added floors, which is fitting with Smith's attempts to make the crown more slender.However, the top of the tower has a steel frame structure, unlike the lower portion's reinforced concrete. The developer, Emaar, has stated this steel section may be extended to beat any other tower to the title of tallest.

Delay

Emaar Properties announced on 9 June 2008 that construction of Burj Dubai was delayed by upgraded finishes and will be completed only in September 2009.An Emaar spokesperson said "The luxury finishes that were decided on in 2004, when the tower was initially conceptualized, is now being replaced by upgraded finishes. The design of the apartments has also been enhanced to make them more aesthetically attractive and functionally superior."A revised completion date of 2 December 2009 has been announced.

Architecture and design


Supertall cross-section comparisons.



Photo in January 2008 shows the 3-lobed structure.



A Hymenocallis flower showing 6 spokes, as pattern for the 3-lobed design.

The tower is designed by Skidmore, Owings and Merrill, which also designed the Willis Tower in Chicago, Illinois and 1 World Trade Center in New York City, among numerous other famous high-rises. The building resembles the bundled tube form of the Willis Tower, but is not a tube structure. Its design is reminiscent of Frank Lloyd Wright's vision for The Illinois, a mile high skyscraper designed for Chicago.

According to Marshall Strabala, an SOM architect who worked on the building's design team, Burj Dubai was designed based on the 73-floor "Tower Palace Three", an all-residential building in Seoul, South Korea. In its early planning, Burj Dubai was intended to be entirely residential.





Emaar Properties has also engaged GHD,an international multidisciplinary consulting firm, to assist with the design, review and assessment involved in the construction process.

The design of Burj Dubai is derived from patterning systems embodied in Islamic architecture, with the triple-lobed footprint of the building based on an abstracted version of the flower Hymenocallis.The tower is composed of three elements arranged around a central core. As the tower rises from the flat desert base, setbacks occur at each element in an upward spiralling pattern, decreasing the cross section of the tower as it reaches toward the sky. There are 26 terraces in Burj Dubai. At the top, the central core emerges and is sculpted to form a finishing spire. A Y-shaped floor plan maximizes views of the Persian Gulf. Viewed from above or from the base, the form also evokes the onion domes of Islamic architecture. During the design process, engineers rotated the building 120 degrees from its original layout to reduce stress from prevailing winds. At its tallest point, the tower sways a total of 1.2 m (3.9 ft).


To wash the 162 floors of habitable space of Burj Dubai, a horizontal track has been installed on the exterior of Burj Dubai at three levels 40, 73 and 109. Each track holds a 1,500 tonne bucket machine which moves horizontally and then vertically using heavy cables. The first of the 18 buckets is being tested on the south side of the Burj Dubai at level 40. The top of the spire, however,is reserved for specialist window cleaners, who brave the heights and high winds dangling by ropes to clean the top panels.

More than 1,000 pieces of art will adorn the interiors of Burj Dubai, while the lobby of Burj Dubai will have the artwork of 196 bronze and brass alloy cymbals representing the 196 countries of the world. The visitors in the lobby will be able to hear a distinct timbre as the cymbals, plated with 18-carat gold, are struck by dripping water, intended to mimic the sound of water falling on leaves.

A total of 24,348 pieces of cladding have been installed, with the last piece, spanning six-metres in length, yet to be installed.
The exterior cladding of Burj Dubai will consist of 142,000 m2 (1,528,000 sq ft) of reflective glazing, and aluminium and textured stainless steel spandrel panels with vertical tubular fins. The cladding system is designed to withstand Dubai's extreme summer temperatures. Additionally, at its projected height the exterior temperature at the top of the building will be 6 °C (11 °F) cooler than at its base.

The interior will be decorated by Giorgio Armani. An Armani Hotel, the first of four by Armani, will occupy the lower 37 floors.Floors 45 through 108 will have 700 private apartments on 64 floors (which, according to the developer, sold out within eight hours of being on the market). An outdoor zero-entry swimming pool will be located on the 78th floor of the tower. Corporate offices and suites will fill most of the remaining floors, except for a 123rd floor lobby and 124th floor (about 440 m (1,444 ft)) indoor/outdoor observation deck. The spire, itself over 200 m (700 ft) tall, will hold communications equipment.Burj Dubai is expected to hold up to 35,000 people at any one time.A total of 56 elevators will be installed, the fastest rising and descending at up to 10 m/s (33 ft/s).Engineers had considered installing the world's first triple-deck elevators, but the final design calls for double-deck elevators.

The graphic design identity work for the Burj Dubai is the responsibility of Brash Brands, who are based in Dubai. Design of the global launch events, communications, and visitors centers for the Burj Dubai have also been created by Brash Brands as well as the roadshow exhibition for the Armani Residences, which are part of the Armani Hotel within the Burj Dubai, which toured Milan, London, Jeddah, Moscow and Delhi.

Dubai Fountain

Outside, and at a cost of Dh 800 million (US$217 million), a record-setting fountain system was designed by WET Design, the California-based company responsible for the fountains at the Bellagio Hotel Lake in Las Vegas. Illuminated by 6,600 lights and 50 colored projectors, it is 275 m (900 ft) long and is shooting water 150 m (490 ft) into the air, accompanied by a range of classical to contemporary Arabic and world music.On 26 October 2008 Emaar announced that based on results of a naming contest the fountain would be called the Dubai Fountain.

Construction

Concept of the monthly construction




Burj Dubai aerial closeup in March 2008.

The tower is being constructed by a South Korean company, Samsung Engineering & Construction, which also built the Petronas Twin Towers and the Taipei 101.Samsung Engineering & Construction is building the tower in a joint venture with Besix from Belgium and Arabtec from UAE. Turner is the Project Manager on the main construction contract.

The primary structural system of Burj Dubai is reinforced concrete. Over 45,000 m3 (58,900 cu yd) of concrete, weighing more than 110,000 tonnes (120,000 ST; 110,000 LT) were used to construct the concrete and steel foundation, which features 192 piles buried more than 50 m (164 ft) deep.When completed, Burj Dubai's construction will have used 330,000 m3 (431,600 cu yd) of concrete and 39,000 tonnes (43,000 ST; 38,000 LT) of steel rebar, and construction will have taken 22 million man-hours.

As construction of the tower progressed, it became increasingly difficult to vertically pump the thousands of cubic metres of concrete that were required. The previous record for pumping concrete on any project was set during the extension of the Riva del Garda Hydroelectric Power Plant in Italy in 1994, when concrete was pumped to a height of 532 m (1,745 ft). Burj Dubai exceeded this height on 19 August 2007, and as of 8 November 2007 concrete was pumped to a delivery height of 601 m (1,972 ft).

In Burj Dubai, concrete was pumped to the 156th floor, while the remaining structure was built of lighter steel. Burj Dubai is highly compartmentalised, with refuge floors built every 30 floors, where people can shelter on their long walk down to safety in case of an emergency.

Special mixes of concrete are made to withstand the extreme pressures of the massive building weight; as is typical with reinforced concrete construction, each batch of concrete used was tested to ensure it could withstand certain pressures.

The consistency of the concrete used in the project was essential. It was difficult to create a concrete that could withstand both the thousands of tonnes bearing down on it and Persian Gulf temperatures that can reach 50 °C (122 °F). To combat this problem, the concrete was not poured during the day. Instead, ice was added to the mixture and it was poured at night when the air is cooler and the humidity is higher. A cooler concrete mixture cures evenly throughout and is therefore less likely to set too quickly and crack. Any significant cracks could have put the entire project in jeopardy.

The unique design and engineering challenges of building Burj Dubai have been featured in a number of television documentaries, including the Big, Bigger, Biggest series on the National Geographic and Five channels, and the Mega Builders series on the Discovery Channel.

Floor plans

The following is a breakdown of floors as noted by Glasssteelandstone.com
Floors
Use
160-206
Mechanical
156-159
Transmission
155
Mechanical
139-154
Office
136-138
Mechanical
125-135
Office
124
Observatory
111-123
Office
109-110
Mechanical
76-108
Residential
73-75
Mechanical
43-72
Residential
40-42
Mechanical
19-39
Hotel
17-18
Mechanical
5-16
Hotel
4
Hotel, Mechanical
3
Hotel, restaurant
2
Hotel, lobby
1
Hotel, lobby, restaurant
Concourse
Restaurant, lobby
B1-B2
Parking, Mechanical

Labour controversy

Burj Dubai is being built primarily by poor immigrants from South Asia.Press reports indicated in 2006 that skilled carpenters at the site earned UK£4.34 a day, and labourers earned UK£2.84.

On 21 March 2006, about 2,500 workers upset over buses that were delayed for the end of their shifts rioted, damaging cars, offices, computers, and construction equipment.A Dubai Interior Ministry official said the rioters caused almost UK£500,000 in damage.Most of the workers involved in the riot returned the following day but refused to work.

As of 17 June 2008 there are 7,500 skilled workers employed in the construction of Burj Dubai.

Purpose

Burj Dubai has been designed to be the centerpiece of a large-scale, mixed-use development that will include 30,000 homes, nine hotels such as the Burj Dubai Lake Hotel & Serviced Apartments, 3 hectares (7.4 acres) of parkland, at least 19 residential towers, the Dubai Mall, and the 12-hectare (30-acre) man-made Burj Dubai Lake.

The building has returned the title of Earth's tallest free-standing structure to the Middle East—a title not held by the region since 1311 when Lincoln Cathedral in England surpassed the height of the Great Pyramid of Giza, which had held the title for almost four millennia.

The decision to build Burj Dubai is reportedly based on the government's decision to diversify from an oil-based economy to one that is service- and tourism-oriented. According to officials, it is necessary for projects like Burj Dubai to be built in the city to garner more international recognition, and hence investment. "He [Sheikh Mohammed bin Rashid Al Maktoum] wanted to put Dubai on the map with something really sensational," said Jacqui Josephson, a tourism and VIP delegations executive at Nakheel Properties.

Progression of the construction of Burj Dubai









souce : wikipedia