64 Used software: Scia Engineer CAE Housing & Buildings 2 Grontmij Stoel Partners Contact Cornelis Bergsma Address Haydnstraat 2 8031ZA Zwolle, Netherlands Phone +31 384554600 Email [email protected] Website www.stoelpartners.nl / www.grontmij.com The consulting engineering firm Grontmij Stoel Partners (GSP) operates in mainly two disciplines. Grontmij Stoel Partners Building advises its clients in the field of building science. Project management, the development of drawings, specifications and calculations and monitoring on site are among its services. Clients are private companies, public agencies, architects, housing associations, project management offices and contractors. Grontmij Stoel Partners Consulting Engineers advises its clients in the field of building structures. On the basis of the design ideas of architects, Grontmij Stoel Partners designs structures. For architects, Grontmij Stoel Partners Consulting Engineers can act as a facilitator to complete their design. For Grontmij Stoel Partners an important principle in the design of building structures is the cooperation with the design team. GSP will support the architectural design and if possible even enhance it. The simultaneous design by architect and engineer in workshops at the start of a project has a positive influence on the outcome of the project. The mission of Grontmij Stoel Partners is: to give ‘independent, professional and pleasant’ advice to clients in building sector. Grontmij Stoel Partners has 31 employees. Introduction For Groene Land Achmea an office building was constructed to house 1100 employees. The building has 18.000 m2 of office space and a 9.000 m2 large parking garage that can keep up to 300 vehicles. In total 642.800kg of structural steel and ca. 9.100 m3 of concrete was used. The high-rise part of the building reaches 41,5 m divided over eleven storeys (including a technical installation level). The low-rise part of the building reaches 26,3 m divided over 7 storeys. The bottom four layers of the building contain a parking garage situated over two storeys and two storeys of office space. Construction The construction of the building consists of two separate structures: a concrete structure for the skeleton of the middle and lower part of the building and a mainly steel skeleton for the slanted tower. The concrete skeleton consists of round prefab columns and beams supporting a hollow floor with an in situ concrete top. Horizontal forces on the building are transported via the floors to the lift-shafts. These lift-shafts constructed of prefab concrete are situated in the high-rise and low-rise part of the building and ensure stability. Achmea office, Zwolle A fascinating sea of columns, made of concrete and steel, supports this intriguing building. The outward stepping structure of the high-rise part immediately attracts ones attention. Lightweight composite steel/ concrete floors supported by steel beams and columns which cross each other make this, out of the ordinary looking, structure possible. One can immediately understand that complex computer software was used to calculate the forces in the structure of this stylish building. Owner: Achmea Architect: LKSVDD General Contractor: Salverda - Trebbe Engineering Office: Stoel Partners Zwolle Construction Start: 01/02/2006 Construction End: 27/10/2007 Location: Zwolle, Netherlands Project Information Short Description
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