Eureka Tower

Eureka Tower

Eureka Tower, Southbank, Melbourne, as viewed from Rialto Towers
Record height
Tallest in Melbourne since 2006[I]
Preceded by 120 Collins Street
General information
Status Complete
Type Residential Apartment Building, Observation Tower
Architectural style Modern
Location Melbourne, Victoria, Australia
Coordinates 37°49′18″S 144°57′52″E / 37.82167°S 144.96444°E / -37.82167; 144.96444Coordinates: 37°49′18″S 144°57′52″E / 37.82167°S 144.96444°E / -37.82167; 144.96444
Construction started August 2002
Completed October 2006
Cost U$415m in 2006[1]
Height
Architectural 297.3 metres (975 ft)[2][3]
Top floor 292.3 metres (959 ft)[2]
Observatory 282 metres (925 ft)[2]
Technical details
Floor count 91 plus 1 underground[3]
Floor area 123,000 m2 (1,323,961 sq ft)[2]
Design and construction
Architect Fender Katsalidis
Developer Eureka Tower Pty Ltd
Main contractor Grocon
References
[2]

Eureka Tower is a 297.3-metre (975 ft) skyscraper located in the Southbank precinct of Melbourne, Victoria, Australia.[3] Construction began in August 2002 and the exterior completed on 1 June 2006. The plaza was finished in June 2006 and the building was officially opened on 11 October 2006.[4] The project was designed by Melbourne architectural firm Fender Katsalidis Architects and was built by Grocon (Grollo Australia). The developer of the tower was Eureka Tower Pty Ltd, a joint venture consisting of Daniel Grollo (Grocon), investor Tab Fried and one of the Tower's architects Nonda Katsalidis. It was the world's tallest residential tower when measured to its highest floor,[5] until surpassed by Ocean Heights and the HHHR Tower in Dubai. It is the second tallest building in Australia, behind Q1, Queensland, and is the tallest to roof (excluding spire).[6] As of 2016 it is the 15th tallest residential building in the world.

Design and features

Eureka Tower is named after the Eureka Stockade, a rebellion during the Victorian gold rush in 1854. This has been incorporated into the design, with the building's gold crown representing the gold rush and a red stripe representing the blood spilt during the revolt.[7] The blue glass cladding that covers most of the building represents the blue background of the stockade's flag and the white lines also represent the Eureka Stockade flag. The white horizontal stripes also represent markings on a surveyor's measuring staff.[8]

At the base of the tower is an art installation containing bees inside a white box, resembling a manmade beehive. There are two regular sized bees outside the box, and one queen bee on the top. The gold color of the bees complements the gold at the top of the tower. The installation was created by Richard Stringer and Nonda Katsalidis, and was complete in December 2007.[9]

When measured either by the height of its roof, or by the height of its highest habitable floor, Eureka Tower was the tallest residential building in the world when completed. It is also currently the building with the most floors available for residential occupancy in the world. The building stands 297 metres in height, with 91 storeys above ground plus one basement level. It is one of only seven buildings in the world with 90 or more storeys and is the equal 77th tallest building in the world. It is also the second-tallest building in Australia and the tallest building in Melbourne. The single level basement and first 9 floors contain car parking. The building's proximity to the water table as well as the Yarra River made the construction of a basement car park uneconomical. In all, there are 84 floors of apartments (including some floors shared between car parking and apartments), with the remainder being used for building facilities and the observation deck.

According to the ranking system developed by the U.S.-based Council on Tall Buildings and Urban Habitat, the Eureka Tower qualifies as the tallest building in three of the four categories in which heights are ranked, namely height to the floor of the highest occupied floor of the building. For comparison, the Q1 apartment tower on the Gold Coast has its highest habitable floor (the observation deck), reaching a height of 235 m (771 ft), some 62 m (203 ft) lower than Eureka Tower's highest habitable floor. Q1's highest penthouse apartment is 217 m (712 ft) whilst Eureka's penthouse is 278 m (912 ft) high. However, the spire attached to the top of Q1 exceeds the Eureka Tower in the other two categories, namely "Height to the tip of spire, pinnacle, antenna, mast or flag pole" – in this case, spire – and height to architectural top of the building.

Specifications

Floors 82 to 87, marketed as Summit Levels, contain only one apartment per floor, each with an original price of A$7 million for the unfurnished floor space alone.[10]

The highest floors of the tower house an observation deck (level 88), restaurant[11] (level 89), communications room and balcony (90) and water tanks (90 and 91). A system of pumps constantly moves water between the two 300,000 litre tanks to counteract wind-induced oscillations.[7]

Observation deck (Eureka Skydeck 88)

Looking north-east over Melbourne CBD from Skydeck 88, with reflections in the tower's gold plated windows
The Terrace as seen from ground, The Edge observation cube seen at left
Eureka Tower from across the river

The observation deck (Eureka Skydeck 88) occupies the entire 88th floor of the Eureka Tower and is the highest public vantage point in a building in the Southern Hemisphere at 285 m (935 ft). It opened to the public on 15 May 2007. An entry fee applies to access the Skydeck.

The Skydeck features thirty viewfinders that help visitors to pinpoint numerous significant landmarks around all parts of Melbourne, along with several free binoculars. There is a small outside area called The Terrace which is closed in high winds. There is also a glass cube called The Edge, which extends itself from the building to hang over the edge of the tower and add to the viewing experience.

On 10 January 2005, Grocon, the firm building Eureka Tower, proposed adding a 53.8 m (176.5 ft) communications mast/observation tower. The proposal is currently before the local planning commission. This mast would be a significant structure, used for providing an adventure climb to the tip of the summit.

On 16 April 2006, a new proposal was announced that the construction company and developers were considering options for the building to have a "skywalk" that would take daring people up 350 metres high. The proposed structure may also include a communications tower.

The Edge

Skydeck 88 features The Edge – a glass cube which projects 3 m (10 ft) out from the building with visitors inside, suspended almost 300 m (984 ft) above the ground. When one enters, the glass is opaque as the cube moves out over the edge of the building. Once fully extended over the edge, the glass becomes clear.[12]

Air plant experiment

From June 2013, Grant Harris, environmental scientist, Stu Jones structural engineer, and Lloyd Godman ecological artist carried out an experiment placing Tillandsia plants on 4 locations on the tower. Two different species were placed at four levels: 56, 65, 91, and on top at level 92. These plants grow with no soil or watering / nutrient system and on Eureka Tower were exposed to the elements where they proved to grow through winter, salt winds over 200 km/h and a hot dry summer. The plants were checked over a 12-month period, grew and even flowered. As far as can be ascertained this is the highest building with plants on and the experiment paved the way for utilizing Tillandsia on high-rise buildings.

Construction

Looking upwards along the Eureka Tower

Construction began August 2002[1] and took 4 years and 2 months.[5]

The tower was built using reinforced concrete using a slipform method. Eureka Tower's lift core superseded the height of Rialto Towers on 9 November 2004.

On 23 May 2006, the crane on top of the tower was dismantled by a smaller crane, which was dismantled by a smaller crane that could be taken down the service elevator.

Eureka Tower has 24 carat (99.9%) gold plated glass windows on the top 10 floors of the building. Installation of the gold glass was completed in March 2006. Apartment owners and tenants had taken up residence in the building between Ground Level and Level 80 as of July 2006.

On 11 October 2006, the tower was officially opened by then Premier of Victoria, Steve Bracks.[4]

Construction methods

A 2-floor Grocon-Lubeca jumpform system was used to halve work time, concrete and joints required in the core, as well as increasing structural integrity. [13][14]

Grocon purchased the Singapore company Lubeca in 2000, and then did more R&D to design the 2-floor jumpform system.[15]

Eureka Climb

Since 2012 the Eureka Climb event has been held annually. Participants climb 1642 steps to the observation deck.The current record is 7 minutes to climb up 88 floors.[16]

See also

References

  1. 1 2 3 "Eureka Tower, Melbourne, Australia: 34th tallest building in the world". Skyscraperpicture.com. Retrieved 24 September 2011.
  2. 1 2 3 4 5 "Eureka Tower - The Skyscraper Center". Council on Tall Buildings and Urban Habitat.
  3. 1 2 3 "Eureka Tower, Melbourne". Retrieved 2007-10-24.
  4. 1 2 "Tallest tower opens in Melbourne". The Australian. Australian Associated Press. 11 October 2006. Archived from the original on 16 January 2009. Retrieved 27 October 2012.
  5. 1 2 3 "Eureka tower officially opens". The Age. Melbourne. 11 October 2006.
  6. ↑ "Q1 Tower, Gold Coast City". Emporis. Retrieved 22 September 2016. Height(roof) 245.00 m
  7. 1 2 Eureka Tower Facts
  8. ↑ Eureka Skydeck 88: English Visitor Guide Archived 1 March 2015 at the Wayback Machine.
  9. ↑ "Queen Bee @ Eureka Tower". www.onlymelbourne.com.au. Retrieved 22 September 2016.
  10. ↑ http://www.propertyobserver.com.au/international/eureka-tower-penthouse-hoped-to-fetch-sky-high-price/2011083051361
  11. ↑ "Eureka 89". Eureka 89. Retrieved 24 September 2011.
  12. ↑ "Experience the terrifying Edge at Eureka Tower". Herald Sun. news.com.au. 29 April 2007.
  13. ↑ "Eureka Tower, Melbourne, Victoria". Design Build Network. Retrieved 22 September 2016.
  14. ↑ "Will Grocon become the king of speed builders?". ITP.net. 17 June 2006. Retrieved 24 September 2011.
  15. ↑ Zoe Naylor (17 June 2006). "Rose Tower achieves quickest cycles - Media". Arabian Business. Retrieved 24 September 2011.
  16. ↑ Eureka Climb About Eureka Climb Retrieved April 8, 2015
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