Tecnostrutture lands in India, alongside two native companies, for a major project at the ITC Welcome Hotel Dwarka, a prestigious hotel in the centre of the Indian capital. The NPS® system was chosen primarily for its guaranteed speed and seismic performance.
The hotel structure, which consists of a thirteen-storey central body surrounded by a three-storey horseshoe-shaped portion, has undergone a large-scale project by raising the perimeter volumes from three to a total of thirteen floors.
The design themes
1. Sub-founding intervention and reinforcement of the pillars.
2. Seismic resistance. Tecnostrutture designed a structural solution that, through seismic isolators, would make it possible to adapt an existing building both
to horizontal actions, that are increased by the increase in mass, and to the new vertical actions.
3. Ten storeys constructed with a seismic-resistant system without the use of bracing. It's also fire resistant for up to 120 minutes.
4. Three metal staircases straddling the structural joints.
The NPS® advantages
The use of the NPS® system and the operational capabilities of Tecnostrutture brought considerable advantages to the work being carried out at Welcome Hotel Dwarka.
1. Contained thicknesses. As Engineer Stefano China, Tecnostrutture's Technical Director, recalls, "The NPS® system makes it possible to reduce the overall sections of the structures, considerably facilitating the work of superelevation, especially in a reality such as India where most of the structures are made of concrete and as a result they are massive and bulky".
2. Self-supporting up to 4 metres. There is no need for temporary propping of the beams during erection, reducing construction time and allowing work phases to overlap.
3. Tekla's BIM environment made it possible to design and send into production about 350 tonnes of complex steelwork in 55 working days, with an average of 6.3 tonnes per day, proving that the same steelwork can be produced in about half the time of that designed with more traditional software. This important advantage is certainly due to the possibility of drawing nodes in the database, but also to the easier management of the rod positions, even managing to create workshop standards by exploiting designer-defined output templates.