Moscow -- The 'Four Suns' luxury residential complex in Moscow, which is built over two underground railway lines, has elastic mounting for vibration protection, supplied by Austrian specialists Getzner Werkstoffe.
The 110 000- sq.m Moscow development by the Office Stroj construction company is the largest elastic-mounting building project in the company's history, said Buers, Austria-based Getzner.
Key to this project's success was Getzner's ability to offer a solution customised to the situation. The complex is situated on a common base plate, upon which four 8 to10-storey residential buildings are located. The foundations were built as a monolithic, reinforced-concrete, solid plate.
"We can adapt both the thickness and parameters of the materials to suit the individual case. This allows us to devise very economical solutions," points out Andreas Stofleth, project manager at Getzner.
To insulate the buildings against vibration, the developers decided on elastic mounting using Getzner's polyurethane material Sylomer, in the form of elastic floor and wall supports under the foundation of the residential block and on the surfaces of the foundation walls.
The elastic bearing beneath the baseplate consisted of a 37- mm thick layer of Sylomer, while 25-mm of the PU material was applied to the foundation walls.