Located in the vibrant cultural and heritage district of Bugis in Singapore, DUO is a new real-estate development which opens at the end of 2017. This high rise has 2,082 tonnes of HISTAR® steel sections in its foundations, with the steel produced by ArcelorMittal Differdange in Luxembourg. The use of our steel sections allowed the contractor to save both time and weight.
DUO comprises residences, offices, a hotel and retail space. It is designed by German-born Ole Scheeren, the architect behind the design of landmark projects such as the CCTV headquarters in Beijing, the MahaNakhon, Bangkok's tallest skyscraper, as well as The Interlace, iconic residential development in Singapore and World Building of the Year in 2015.
Weight saving of 20% thanks to HISTAR®
ArcelorMittal contributed to the construction of the DUO Residences tower, which is still under construction. We supplied 2,082 tonnes of HISTAR® 460 steel sections produced in Differdange, Luxembourg, which were used to build the foundations of the tower using the top-down method.
What is the top-down method?
The top-down method is a composite method to build foundations. King post piles are put in the ground and while digging around them, slabs of concrete are put on top of them. At the same time, construction of the top structure starts. When arriving at the bottom, concrete is put around the king post piles for fire resistance. When the foundations of the building are completed, the building is already partially built, resulting in reduced construction time for the contractor.
The top-down method using our steel sections offers many advantages:
- Weight saving of 20% compared to grade S355M (instead of using 2 sections in grade S355M, only one section in grade S460M/HISTAR® 460 was necessary)
- Smallest hole to drill in the soil
- Less fabrication work
- No splicing needed
- Fast to install
A 26 metre-long King post pile in HISTAR® 460
An impressive panorama of Singapore
Located in the centre of Singapore, in a neighbourhood that is home to historical sites and national monuments, the DUO project is composed of two towers, DUO tower (39 floors) and DUO Residences (49 floors). DUO is developed by M+S Pte Ltd, owned by Malaysia's strategic investment fund, Khazanah Nasional Berhad and Singapore's state-owned investment company, Temasek Holdings. CapitaLand is the project manager of DUO.
Pictures 1 & 4 © Buro-OS