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Old June 6th, 2005, 12:26 PM   #1
Aboveday
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Hong Kong Stonecutters Bridge-- longest span cable-stayed bridges




June 5, 2005
Development

On track to the future



Works on the Route 8 expressway are progressing well with the first segment of the Stonecutter's Bridge steel deck due to be lifted into place by the end of next year.



The 15km route will stretch from Sha Tin to Tsing Yi, and at $15 billion is one of the Highways Department's largest and most challenging projects. In terms of cost and complexity, it is very similar to the roads that were constructed for the new airport on Chek Lap Kok, department Deputy Project Manager (Major Works) David English said.


2 stages

The dual three-lane expressway will be completed in two stages - Stage 1 between Sha Tin and Cheung Sha Wan will open to traffic in mid-2007, while Stage 2 from Cheung Sha Wan to Tsing Yi will be ready by mid-2008.



It is being constructed under seven civil engineering contracts together with a traffic control and surveillance system contract. It will provide full traffic control for the whole route from a centralised control room. The Civil Engineering & Development Department is constructing the vital T3 connecting section of the expressway in Tai Wai under a separate contract.



Mr English said: "On completion of Route 8 we will have erected over 8,000 concrete viaduct segments, all of which have been cast in the Mainland and shipped to Hong Kong and we will have excavated nearly 1.4 million cubic metres of rock, enough to fill Hong Kong's biggest building the International Finance Centre, to build 4km of tunnels."



Alternate route

Writing in the department's latest newsletter, Mr English said the strategic route will offer an alternative for residents in the northeast New Territories to get to the airport and the northwest New Territories, and for container vehicles to access container ports thereby relieving traffic congestion at the Lion Rock and Shing Mun Tunnels, and on Tai Po Road.



He said Stage 1 works, comprising three contracts - the Lai Chi Kok Viaduct, the Eagle's Nest Tunnel and Sha Tin Heights Tunnel - started in November 2002. The department achieved a milestone tunnel breakthrough for the Sha Tin Heights Tunnel, and the breakthrough for the 2km long Eagle's Nest tunnel is forecast for mid-2005.



About 100 pre-cast segments for the Lai Chi Kok Viaduct have already been erected by crane, and full erection is underway, using a 180-metre long gantry that places concrete segments up to 3.5 metres high and weighing up to 100 tonnes each.



On Stage 2, Mr English said works on the 1.2km Nam Wan Tunnel have been running smoothly, and are 55% complete. The first tube breakthrough was achieved in February and the second in May. Works on the tunnel concrete lining are being conducted and installation of lighting and ventilation equipment will start later this year.



"The West Tsing Yi Viaduct is also making good progress, with about 80% of the bridge structures completed and connection with the Cheung Ching Highway near the Tsing Ma Bridge in progress," he added.



Centre showpiece

Mr English said the works contract for Stonecutters Bridge was awarded in May last year and the bridge will be in place by mid-2008.


With a central span of 1,018 metres, the bridge will be one of the longest span cable-stayed bridges in the world, beating Tatara Bridge in Japan, the present record holder, by 130 metres.



"The deck will be suspended by cables from two towers nearly 300 metres in height, the same as Central Plaza in Wan Chai. The top section will be clad in stainless steel, which will be a world first."




Piling for the eastern backspan, comprising four piers and the east tower, has been completed, while piling for the western backspan and west tower is in progress.



The steel wire material for the stay cables is being made in Japan and is ready for delivery to its fabrication yard in Jiangyin in Jiangsu Province. The first segment of the steel deck is now being made in the Shanhaiguan fabrication yard, near the Great Wall's eastern entrance. The fabricated steel will then be shipped to Dongguan for assembly, before being delivered to Hong Kong for erection.



Mr English said the bridge will take four years to build, and the first segment is scheduled to be lifted into place at end-2006.



"The bridge is more than an engineering feat in which our engineers will no doubt take pride. It will also be a defining piece of architecture for Hong Kong and a reflection of the confidence of this world city to rise to the challenges of the new millennium. We look forward to the delivery of this strategically important project in mid-2008."

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Old June 6th, 2005, 12:28 PM   #2
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External lighting design by Arup
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Old June 6th, 2005, 12:32 PM   #3
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Old June 6th, 2005, 12:33 PM   #4
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Old June 6th, 2005, 01:27 PM   #5
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looks very gross
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Old June 6th, 2005, 02:17 PM   #6
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if you take KCR towards taiwai station from kln tong you can see overpasses being built over the railway line and the enterance of the tunnel's it's pretty a big project.

The interchange in the picture above is partly completed, around 50%. That was what i saw about 2 months ago, im not sure now.
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Old June 7th, 2005, 02:23 AM   #7
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Any Pics on the construction?
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Old June 8th, 2005, 02:11 AM   #8
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i differ with you there null~

Stonecutters'll be a beauty both night and day!!
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Old June 9th, 2005, 01:15 AM   #9
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OH yea, the lighting at top of the bridge might be able to change colours like the center.
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Old October 22nd, 2005, 11:34 AM   #10
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October 16, 2005
Government Press Release
Steel-concrete towers make bridge unique


On track: A bird's-eye view of Stonecutters Bridge's East Tower pile cap

Its steel-concrete towers will make Stonecutters Bridge unique in the world, with the last main span deck to be lifted in the first quarter of 2008, Highways Department Chief Engineer Michael Hui says.

Stonecutters Bridge, straddling Rambler Channel with a main span of 1,018 metres, is a key feature of Route 8 connecting Sha Tin and Tsing Yi. Other features of the 13.6km-long route include three tunnels, with lengths ranging from 1km to 2.1km.

World's longest bridge span

Mr Hui tells news.gov.hk that Route 8 is technically comparable to highway projects under the Airport Core Programme, although it is smaller in scale.

"In terms of road length, projects under the Airport Core Programme reached 34km, while Route 8 is only 13.6km. However, Route 8 includes one long-span cable-stayed bridge, Nam Wan Tunnel, Eagle's Nest Tunnel and Sha Tin Heights Tunnel, making it comparable to the Airport Core Programme which comprises the Lantau Link, Cheung Tsing Tunnel and Western Harbour Crossing.

"When compared with cable-stayed bridges - Ting Kau Bridge and Kap Shui Mun Bridge - in Hong Kong, the construction of Stonecutters Bridge will be more challenging as its main span will measure about 1,018 metres, one of the world's longest."

Mr Hui pointed out Stonecutters Bridge's two circular tapered mono-towers will reach a height of almost 300 metres - only 100 metres lower than Two ifc, the tallest building in Hong Kong. Maintenance gantries will be installed on top of the towers to provide inspection access.

Steel-concrete composite structure

Another unique feature of the bridge towers is their composite structure. The top 118-metre steel 'skin' creates a modern look for the bridge, echoing Hong Kong's unique position as one of the most cosmopolitan and vibrant cities in Asia, Mr Hui said.

Straddling Rambler Channel at the entrance to the busy Kwai Chung Container Port, Stonecutters Bridge will have a clearance height and width of 73.5 metres and 900 metres for the passage of super container vessels. It will use 224 stay cables, weighing 7,000 tonnes, the longest one stretching 540 metres. They will radiate like a fan from the tower to the deck.

To ensure safe and smooth marine traffic during the bridge's construction, Mr Hui said a marine traffic liaison group has been set up with representatives from the contractor, container terminal operators and relevant Government departments.

Smooth marine traffic assured

"The contractor has to make reference to vessel schedules, weather and current before deciding when to lift the bridge decks over Rambler Channel. The first deck will be lifted over the sea in mid-2007. The last deck will be erected in the first quarter of 2008, closing the bridge gap. Each deck will weigh about 500 tonnes."

Taking part in the project for years, Mr Hui said the most challenging event he has experienced so far was the international design competition held in 2000, in which a winning design was chosen as the reference scheme and was developed during the detailed design stage.

"It was the first time the Government held such a contest. Therefore we had to sort out everything ourselves, from poster design to inviting adjudicators. While the work pressure was very heavy, it was a challenging task. After the event, we prepared a design competition memorandum which has become a useful reference within the Government.

"The Mainland has also made reference to Hong Kong and held contests to get the best designs for bridge projects, such as the Sutong Bridge in Jiangsu and the Third Nanjing-Changjiang Bridge," he said.

Another big challenge to come

Mr Hui expected another big challenge in 2008, the moment before the last bridge deck is lifted.

"Unlike vehicular flyovers which are rigid in appearance, cable-stayed bridges are more flexible and will be subject to vibration when the wind blows. As a cantilevering construction method will be deployed, the arms will be built out piece by piece from the bridge towers until the halves meet.

"Therefore, the bridge will be the most flexible before the last bridge deck is erected to connect the arms. This will also be the most critical moment for us. We will devise measures to keep the level of vibration to the minimum."

Works on Stonecutters Bridge, at a cost of $2.76 billion, started in April last year and are scheduled to end in mid-2008.
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Old November 5th, 2005, 02:00 AM   #11
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great update
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Old November 5th, 2005, 03:19 AM   #12
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Quote:
Originally Posted by null
looks very gross

I agree. There's something that looks weird about cable stayed bridges. Suspension bridges look much more elegant. Maybe this will look better in real life though. It looks very ugly in the renedering.
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Old November 5th, 2005, 04:11 AM   #13
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wow!! it looks HUGE!!
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Old November 9th, 2005, 07:28 PM   #14
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Any updates?
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Old March 10th, 2006, 08:12 PM   #15
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Any updates? Pictures?
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Old May 27th, 2006, 04:41 PM   #16
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Updates?
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Old May 31st, 2006, 03:13 AM   #17
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Update for May,2006 of the Stonecutters Bridge


The Location of this bridge





A bigger maps of the bridge's location





Another Skyview of the Bridge plan

Last edited by Ar3Man; May 31st, 2006 at 03:43 AM.
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Old May 31st, 2006, 03:18 AM   #18
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A clear side view



http://www.hyd.gov.hk/eng/major/majo...c/hy200226.pdf
A very detail information for the whole project

Last edited by Ar3Man; May 31st, 2006 at 03:43 AM.
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Old May 31st, 2006, 03:30 AM   #19
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East Back Span
06EB51 Screen Size Image General view
06EB52 Screen Size Image Pier 1E – crosshead falsework
06EB53 Screen Size Image Pier 1E – fixing of reinforcement in progress
06EB54 Screen Size Image Pier 2E – crosshead falsework

Last edited by Ar3Man; May 31st, 2006 at 03:46 AM.
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Old May 31st, 2006, 03:35 AM   #20
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East Tower
06ET51 Screen Size Image General view
06ET52 Screen Size Image General view
06ET53 Screen Size Image Reinforcement fixing in progress
06ET54 Screen Size Image Reinforcement fixing in progress

Last edited by Ar3Man; May 31st, 2006 at 03:46 AM.
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