coverimage
Dubai News

'Crowning moment' for Expo 2020 Al Wasl dome

date

19-Sep-2019

Dubai: The final piece of the Al Wasl dome was successfully lifted into place today after months of planning and a complex construction operation. Al Wasl dome encircles the Al Wasl Plaza that sits at the heart of the Expo 2020 Dubai site.
 
It will be the focal point for the celebrations over the six months from 20 October 2020 to 10 April 2021, and is set to become Dubai’s newest iconic landmark. More than one million man hours have been completed on the structure to date.The crowning of the dome is a key milestone for Expo 2020 Dubai, with all permanent Expo-led construction on track to be completed by the end of the year, say officials.
 
Fitting the steel crown: one chance to get it right:
The dome’s huge steel crown was positioned in an inspiring feat of precision engineering. Enclosing a space of 724,000 cubic metres and standing 67.5 metres tall (higher than the Leaning Tower of Pisa), the 130-metre-wide domed steel trellis is made up of 1,162 individual curved steel sections. According to Chief Development and Delivery Officer Expo 2020 Dubai, Ahmed Al Khatib, “The trellis canopy has stretched fabric for shading.
 
The grand trellis serves as both an inspirational and performative architectural feature to enhance the use of Al Wasl. It includes integrated lighting and projection systems for events, and will form a stunning 360-degree projection surface, with projections visible both from within and outside the dome, providing a unique visitor experience. It will be fitted with state-of-the-art projectors by audio-visual experts Christie, Expo 2020’s Official Displays and Projection Partner” Al Khatib calls this the “most exhilarating day of my entire career. We had one chance to get this right.”
 
New architectural marvel:
Shaikh Ahmed Bin Saeed Al Maktoum, Chairman of the Expo Dubai 2020 Higher Committee, President, Dubai Civil Aviation Authority, Chairman, Dubai Airports, Chairman and Chief Executive, Emirates Airline and Group, said: “The crowning of the Al Wasl dome is a significant landmark not just for Expo 2020 Dubai but for the whole of Dubai and the UAE. This new architectural marvel joins a long list of inspiring designs that our country has created through collaboration, sheer hard work and the unending, ambitious vision of our leadership and people.”
 
Weighing 550 tonnes of moulded steel, Al Wasl dome’s 22.5-metre crown had to be precisely positioned on top of the vertical trellis, with a margin of error of only three millimetres. It was completed using a technique called strand-jacking. Including the structures and equipment required to lift the dome during this process, the total weight was 830 tonnes — equivalent to 600 saloon cars.
 
How it was done:
Eighteen hydraulic jacks, aided by steel lifting ropes connected to 18 freestanding temporary columns, were used to slowly raise the curved steel crown. It was positioned directly on top of the trellis already in place 45 metres above the ground, and attached using 53 temporary connection brackets. Working through the night, 800 engineers and construction technicians carefully monitored every millimetre of the process, using GPS indicators throughout to ensure perfect alignment. To retain the geometry of the trellis structure as it was lifted, a series of tension cables was installed, connecting the perimeter of the trellis crown to a central temporary compression ring. Multiple test lifts were conducted to measure the movement of the structure as it was lifted off the ground.
 
The tensioned cables were adjusted until the trellis perimeter connection points were in the positions required for the full lift to commence. Calling this one of the most challenging engineering operations in the world, Al Khatib said: “Lifting such a large and heavy structure involved a huge number of variables. Something as simple as a shift in direction of the wind or change in air temperature could have had a big impact on our calculations, so constant monitoring and reassessment was essential throughout the process.”
 
Al Wasl dome’s crowning was the culmination of 14 months of preparation, beginning when the final pieces of the dome’s steel trellising left Italy on 26 June 2018. The individual elements first arrived in Dubai in July 2018 and the crown was carefully assembled at ground level before being raised into place. Now positioned, the final piece of Al Wasl dome will be welded to the rest of the trellis, a process that will take 25 days to complete.
 
The urban room:
The Al Wasl Plaza has been designed to form a grand ‘urban room’, a meeting place that creates a shaded microclimate that simultaneously encompasses vibrant performances and natural landscaping. The name Al Wasl means ‘connection’ in Arabic.
 

More Related News

Jonathan Roxmouth on how he gets into the mindset (and prosthetics) of an iconic role

..

16-Oct-2019

He was incredibly loved by many students, parents and school staff

..

16-Oct-2019

The UAE-based businesswoman thought of the concept as a remedy to stress

..

16-Oct-2019

Leaders head meeting of officials responsible for economic cooperation between UAE, Russia

..

16-Oct-2019

Emirates Delivers to allow customers to shop online from US retailers

..

16-Oct-2019

Messages could be removed or demoted for egregious conduct violating terms of service

..

16-Oct-2019

The Instagram star will attempt to host the largest HIIT Class this October

..

15-Oct-2019

Emirates ordered 150 777X jets, including 777-8 variants, in 2013

..

15-Oct-2019

Russian president on Middle East tour, will visit UAE Tuesday

..

15-Oct-2019

Trade negotiations also ended in protest over Ankara’s offensive into Syria

..

15-Oct-2019


Related Links_


Google ADS

Other Info_

..

Health Care

Multi Specialty medical facilities, government hospitals & private clinics

..

Education

Nurseries, Kindergardens, Schools, Colleges, Universities & Higher Education

..

Popular Restaurants

Dining in Dubai - selection of restaurants where you can relax & enjoy a variety of cuisines of choice

Jobs at Dubai_

Find latest Dubai Jobs & Vacancies from placement agencies, employers & recruitment consultants in Dubai, Abu Dhabi & other Emirates in UAE.

Dubai Tours & Packages_

Book quality Dubai tours, best Dubai holiday packages with visas & Dubai hotel booking with special offers & discounts

Warnning

Unsupported Browser

This website includes CSS elements that your browser does not support. Please upgrade your browser to a current version, then come back and try again.

Upgrade your Browser for more experience

Chrome Firefox Safari Edge