Quadrio shopping centre in Prague 1 has undergone a revitalisation of the entrance from the lobby of the metro station Národní třída, expansion of the gastronomic zone and modernisation of the air conditioning. The design documentation and
author’s supervision was provided by the Obermeyer Helika design and construction consulting company. The construction works, which were carried out while the building was in full operation, were completed on schedule and all public areas are now open to visitors.
„This project presented a significant technical challenge due to the need to keep the building fully operational during the construction modifications,“ said Ing. Martin Schejbal, senior project engineer at Obermeyer Helika. „Particularly challenging was the coordination of work in the already fully utilized installation shafts and the precise timing of the ventilation system replacement. We also found it technically interesting to use custom-made one-metre-long drill bits for core drilling in confined spaces, and to move 2.5‑tonne dry coolers on the roof to install new fans,“ adds Martin Schejbal.
Quadrio is responding to the growing demand for quality fast food, which is why two new gastro units have been created as part of the foodcourt’s construction modifications. There has also been an expansion of the public arcade at the Delmart and Vapiano area. High-quality premium materials were used in the expanded areas, highlighting the thoughtful interior design with attention to detail.
In view of the increased demands of the new facilities, the air handling system was significantly upgraded and the exhaust air extraction system was strengthened. This solution ensured an optimal indoor climate throughout the entire arcade. The existing exhaust fan on the roof with a capacity of 35,500 m3 /h, which had previously extracted air from the food court, was replaced by five new fans. „To accommodate the new fans, two dry coolers weighing 2,500 kg had to be moved to the roof. This very demanding project required meticulous preparation and a detailed schedule, with individual activities coordinated to the tens of minutes. From the fan removal, to the fitting of the new cabinets, programming in MaR, to the installation of the last elbow of the HVAC ductwork. The entire upgrade has significantly improved the overall air handling system of the arcade and contributed to energy savings,“ adds Martin Schejbal of Obermeyer Helika, who provides information on the revitalisation of the Prague Quadrium.
Last but not least, the entrance area from the lobby of the Národní metro station has also undergone a complete transformation. The two existing carousel doors have been replaced by three new, larger modern carousel doors, which ensure a smoother passage for visitors.
Photos exterior: Quadrio shopping centre in Prague 1, source: CPI Property Group
Photos interior: Quadrio shopping centre in Prague 1, source: Obermeyer Helika a.s., Veronika Fialová
