INTERNATIONAL COMMERCE CENTRE 環球貿易廣場personal.cityu.edu.hk/.../stud_tech/100413_icc_e_book.pdfINTERNATIONAL COMMERCE CENTRE 環球貿易廣場 30 Construction & Contract

INTERNATIONAL COMMERCE CENTRE 環球貿易廣場

20 Construction & Contract News 2008 No. 2

建築承造雜誌二○○八年第二期 21

INTERNATIONAL COMMERCE CENTRE環球貿易廣場

環球貿易廣場

環球貿易廣場位於九龍機鐵站上蓋，樓高490

米，共118層，無論規模和質素均創立新標

準，項目由世界著名建築師Kohn Pedersen Fox Associates負責規劃，由新鴻基地產（新地）負責

發展及興建。環球貿易廣場於2010年落成後，將成

為全球第三高建築物。

環球貿易廣場是機鐵九龍站五至七期大型

綜合發展項目的主要部份。整個項目由甲級商廈

環球貿易廣場、豪宅「天璽」、兩間國際頂級酒店

W Hotel 和 The Ritz-Carlton Hotel、豪華服務式

住宅以及100萬呎大型主題商場「圓方」組成。其

中，全球第三高廈環球貿易廣場更是該大型發展項

目的主要部份。項目落成後，將與對岸現時全港最

高大廈國際金融中心組成「維港門廊」，成為21世

紀香港新標誌。

環球貿易廣場更實施了超過100項環保措施，

融入物業發展各環節，並落實多項環保科技，因

此榮獲香港環保建築協會頒發最高「白金」評級

(BEAM)。新地與香港理工大學共同合作，就中央空調系

統進行測試，研發一套精密的高智能系統，組件包

括中央智能指揮中心、環境能耗「監察眼」、24 小

時程式操作管家，及互動調節系統等。透過精確

的「監察眼」，收集環球貿易廣場的環境和能耗數

據，按照日夜四季的天氣變化，24 小時進行精密智

能分析，並按需要即時調節空調系統組件，務求以

最節能的方法，提供最適合的運作模式，策略性地

減低用電量。此技術應用於環球貿易廣場，較一般

商廈節能效果高出 15%，更有助科研發展。

環球貿易廣場同時引進結合保安控制的智能雙

層升降機系統，協調全體升降機的運作。乘客在大

堂以智能卡召喚升降機，智能系統隨即發出指令，

將前往相同樓層的乘客組合起來，並分配至指定升

降機，確保每次運作均達致最高效益。這套智能分

配系統能大幅減少升降機不必要的上落客及重新

啟動次數，較一般升降機系統節能效果高出12%，更

有助縮短乘客等候時間，提高商業活動的效率。

節約用電之餘，環球貿易廣場亦實施嶄新冷

凝水循環再用系統，亦成功收集整座大廈空調

系統產生的冷凝水，循環再用以冷卻空調水塔，

之後再應用於洗手間沖水系統。是項循環系統

規模龐大，預計每年可節約10,000平方米食水，

即相等於約四個奧林匹克標準泳池的容水量。

環球貿易廣場室內裝設數百個二氧化碳感應

器，監測空氣的二氧化碳含量，靈活因應辦公室的

人數，調動系統引入足夠鮮風量，維持室內空氣質

素，而大部份風管道上更裝有可拆卸式檢測點，

方便日後進行定期清潔及檢查。

整個項目投資逾200億元，預計由2008年年底

起至2010年分階段竣工。





Located atop the Airport Express Kowloon Station, the Kowloon Station Development project featuring a cutting-

edge commercial space, luxury residential development, modern retail and two 6-star hotels in a single location.

The developer, Sun Hung Kai Properties (SHKP), is investing over HK$20 billion in Kowloon Station Development Packages 5, 6 and 7, which is the largest integrated project Hong Kong has seen in recent years. The International Commerce Centre (ICC) is the centrepiece of SHKP's Kowloon Station development. Package 6 is the last component and will include the world's third-tallest building ICC, The Cullinan, a world-renowned W Hotel and Ritz Carlton, luxury serviced apartment residences and million-sq-ft Elements mall.

ICC is a vision of the future, born to life in the present and highlighted by extraordinary design, technology and spaciousness. The 490-metre, 118-storey tower will be the Hong Kong’s tallest building and a new landmark in Hong Kong. ICC has been designed by Kohn Pedersen Fox Associates with distinctive, ultra-modern architecture which sets new market standards.

ICC will have state-of-the-art intelligent facilities and infrastructure, as well as exceptional spaciousness with floors covering about 35,000 sq ft. Ceilings will rise as high as 3.15 metres and raised floors for cabling will appeal to major corporations looking for quality office space. ICC and Two IFC on the opposite shore will form a 'harbour gateway' and new symbol of Hong Kong in the 21st century.

SHKP has incorporated over 100 different environmentally-friendly features in its ICC project. These include the new 'Energy Optimizer' air conditioning system and intelligent lifts. ICC will be the third tallest building in the world and it was given the top 'platinum' HK-BEAM ranking provisionally (Building Environmental Assessment Method) for its high environmental

International Commerce Centrestandards and green building specifications.

SHKP has worked with the Hong Kong Polytechnic University to develop an air-conditioning system with a central intelligent control, energy consumption monitors, 24-hour housekeeping and more. The system will collect data and analyze it for day-and-night and seasonal variations to provide a baseline for adjusting various aspects of the air conditioning to reduce energy consumption. ICC will be the first building equipped with the new environmental technology, which is expected to reduce energy consumption by 15 per cent compared with the average office building.

ICC will have Hong Kong's first intelligent lift system incorporating security control and coordinated operation. Passengers will be able to use a smart card in the lift lobby that will allow a computer to assign specific lifts to passengers heading for the same floor. This kind of traffic management is expected to significantly reduce the number of lift stops and starts and trips made, which is projected to use 12 per cent less power than most systems and reduce passengers' waiting time for better business efficiency.

These energy-saving measures are complemented by a new system to recycle condensed water from the air-conditioning system for use in the air-con cooling towers and then as toilet flushing water. The system has been designed to handle 10,000 cubic metres of water annually; enough to fill four Olympic-sized swimming pools.

ICC will have hundreds of CO2 detectors throughout the building to monitor air quality and adjust fresh air intake to the building according to usage so as to maintain indoor air quality. The ventilation system will also have removable service panels to facilitate regular inspection and cleaning.

The project is scheduled for completion in phases from the end of 2008 to 2010.



A Construction Highlight for

the International Commerce Centreat Kowloon Station, West KowloonPhoto Essay by Raymond Wong Wai-man

Early stage of work as seen in 2002 showing the layout of site and the facilities that equipped for the forming of diaphragm wall panels which would be used as the lining of the 76 m cofferdam



Commencement of the cofferdam excavation as seen in late 2003

Standard equipments for the construction of diaphragm wall as seen on site, including the

desanding plant (in the left photo) for the removal of excavated spoil through the circulating

bentonite slurry and the reverse circulation trench cutting machines (in the right photo).



Completion of the foundation raft up to

the third layer. The total depth of the raft is 9 m. The concreting process

is arranged to be placed in 5 layers as a means to control temperature

generated from concrete as well as to ease the

handling of large amount of concrete during work

Building section showing the construction

arrangement from the foundation raft up to the first outrigger set on 6/F

Core wall and the mega columns constructed within the cofferdam close to the ground level. Usual large-panel steel form was used up to4/F before the erection of the jump form



Construction of the floor system from ground to 1/F spanning from the core wall to the mega

columns using traditional timber panel formwork

Commencement of excavation on the side of the cofferdam to form the remaining portion of basement structure

Main building structure constructed up to 2/F

on which the jump form was erected for onward

construction of the core wall structure



Main building structure as seen in February 2006 with the jump form for the core wall and the climb form for the mega columns being erected

Overview seeing the construction of the basement using typical bottom-up arrangement with shoring support counter-act onto the completed main tower structure. The diaphragm wall panel as side to the previous cofferdam was demolished as the excavation process proceeds



Overview of the tower structure with the jump-

form for the core wall, climb-form for the

mega columns and a set of lift-form for an

appended wall (at the right orange in colour) in

position under typical-cycle operation

Close up of the gigantic jump-form system for the core wall construction



Close up of the lower portion of the main tower with the structural layout and floor system clearly seen

Close up of the core wall structure with a set of self-climbing loading platform being erected for the lifting of materials and equipments



Typical view of floor deck before concreting

Typical floor layout detail at the building corner on 15/F. The set-up of the climb-form for a mega column can also be observed



Installing the climb-form for the mega column as seen from the side . The steel shutter panel was not fixed onto the main frame of form at this stage

Setting of the climb form mounted on top of the column with the enclosing safe screen and work platform

Two sets of climb-form in szconized operating phase



Reinforcing bar of the mega columns being fixed with lapping coupler as seen on the work platform ready for concreting

General view of the jump-form for the core wall as seen on the platform deck. Due to the large size of the core wall (measured 32 m x 32 m), two separated sets of jump-form were installed and operated in stepped sequence to make each lifting more easy to handle

Reinforcement detail for the core wall as seen on the work platform. Grade 90 high strength concrete was used for the core wall and the mega columns from the basement up to 60/F in order to reduce the thickness of wall

General view of the jump-form for the core wall as seen on the platform deck. Due to the large size of the core wall (measured 38m x 38m), two separated sets of jumpform were installed and operated in stepped sequence to make each lifting more easy to handle



Unlike other outrigger system used to stiffen the structural frame of highrise tower, ICC employed a set of cast-in-situ RC outrigger system, tensioned in various stages, to gain time in design and fabrication of the members. The photo (left) shows a set of anchor block on the side of the mega column. The photo (above) is another set situated inside the core wall

In order to facilitate the lifting of huge amount of materials to support the construction works, besides the provision of 4 sets of tower cranes and a concrete boom mounted on the top of the core, a temporary access tower with link bridge constructed in steel is also installed for the lifting of workers and materials. The photo (left) shows the external view of the access tower and the material hoist. The photo (above) shows the detail of the mounting



External view of the tower as seen in October 2006 showing all the major structural parts of the tower were under construction at its typical cycle. This included the core wall structure, the finger wall (wall appended to the core wall up to 60/F), the mega columns and the floor deck. Note all the spacious entrance canopy framework with about 30 m headroom on the lower right corner of photo.



Gradual progress of the tower structure as seen in early to mid 2007 with the installation of curtain wall for the lower floors which scheduled for the obtaining of the temporary operation permit by November 2007



External view of the ICC Tower from the roof of Sorrento (擎天半島) in September 2007, January and April 2008



The structural frame for the entrance canopy hood under construction

View of the landscape garden on the podium deck of Kowloon Station as seen from the roof of Sorrento by the end of 2006. The Harbour Side (君臨天下, left) and two service apartment/ hotel blocks (The Cullinan, 天璽) are on the sides of the ICC Tower. While the landscape garden, by that time still under construction, was part of the provision of the shopping mall, the Elements project



View of the ICC Tower in March 2008 from the roof of Sorrento with the other

propertiy developments on the sides

Exterior view of the canopy hood



Interior view of the entrance lobby (inside the canopy) as seen in June 2008. The tower by the time was leased and in use under a temporary operation permit

The completed landscape garden and the spatial layout leading to various property developments as seen in May 2008. The entrance hood to MTR Kowloon Station is situated in the centre of the garden. A square on a lower level of podium outside the entrance canopy to the ICC Tower and other greening facilities can also be seen in the upper part of the podium



Height of tower structure ......................................... 490 mAverage floor plate area ................................... 3,000 sq mTotal floor area ............................................. 280,000 sq m

Key datesProcession of site ............................................. June 2003Obtaining of temporary occupation permit .... December 2007Expected full occupation ........................... February 2010Opening of the hotel ........................................ End of 2010

Use of floor spaces (floor number is for reference only)Office spaces ................................................... 8/F to 98/FHotel apartment ...................... 101/F to roof, total 14 floorsSky lobby ................................................................... 43/FObservation deck ...................................................... 99/FOutrigger spaces are used as mechanical floors

Construction/ structural features- A 76 m diameter cofferdam lined with 1.5 m-thick

diaphragm wall panels was formed to facilitate the construction of the 9 m-deep foundation raft and core wall structure of tower using bottom up arrangement

- Basement in 2 levels is constructed using semi bottom-up arrangement due to limited space and the existence of the MTR tunnel tube crossing within 6 m on the side of the tower foot-print

- Grade 90 concrete is used up to 60/F. The other portion of tower structure uses mainly Grade 45 and Grade 60 concrete

- Four sets of outrigger are provided at 6/F, 42/F, 78/F and 100/F. Except for the one on 6/F which is constructed in in-situ prestressed design, the upper ones are in fabricated structural steel with an inner frame embedded in the core wall

- Two sets of jump-form were used (in stepped operating mode) for the construction of the core wall from 2/F up to 100/F with some dimension re-alignment at a few floor locations with the outrigger frame or where thickness of core wall reduced

- Connecting joint between the outrigger and mega column is provided with design to cater for the differential deflection similar to the IFC2 project

- General composite frame structure is used for the tower up to 100/F, with the central core, an external steel frame rested onto 8 mega columns which span about 16 m

- Hotel floors from 101/F upward are constructed in in-situ method using Grade 60 reinforced concrete and traditional large panel form, with a transfer structure at 101/F

- Total amount of structural material consumed Concrete ................................................... 240,000 cu m Reinforcing bar ........................................... 98,000 tons Structural steel ............................................ 27,000 tons

Fast Facts

Information compiled by Raymond Wong Wai-man

INTERNATIONAL COMMERCE CENTRE 環球貿易廣場personal.cityu.edu.hk/.../stud_tech/100413_icc_e_book.pdfINTERNATIONAL COMMERCE CENTRE 環球貿易廣場 30 Construction & Contract

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