Residential and Office building in Amsterdam

Residential and Office building in Amsterdam

Building use

Other

Country/Region

Netherlands

Overview

The development is composed of two different and distinct parts: a residential block made with reinforced concrete and a steel office portion of 10 stories. The building is designed with a clear engagement for social and environmental sustainability. The residential is a socially-responsible development, offering affordable housing for recent immigrants and students. Environmental sustainability is on the contrary exploited through the design of flexible spaces that can be re-concerted in the future, the use of demountable construction solutions and of recycled materials and the creation of a material passport, a database of the material properties, installation systems, and possible future reuse or recycling opportunities that will serve at the end of life of the building.

Basic information (construction date, number of stories, gross floor area, adopted design code, engineer(s), Contractor(s), etc.)

Construction date: 2021-2-23
Number of stories: 10
Gross floor area: 5,400m2 GLA, of which 10,000m2 office, 480m2 retail, 300 m2 café-restaurant, and 130 apartments
Adopted design code: –
Engineer(s): Pieters Bouwtechniek
Contractor(s): Buiting Staalbouw

Issue and/or innovation

The office portion of the Crossover development is designed to achieve the maximum flexibility for eventual future changes of use. The structure has therefore to be designed with as little impediments to the interior layout as possible, minimizing the size of vertical beams and the thickness of the floor assembly.

Reason for composite solution

Hollow-core slabs on integrated steel beams guarantee thin and flat floors that can also handle large overhangs (up to 9 m) at the sloping front of the office while the columns made with concrete-filled steel tubes represent a common solution in the Netherlands to provide inherent fire resistance to steel framed buildings.

Specific solution/technical details

The office part of the building is made with a vertical steel frame and horizontal composite floor beams with floor slabs. The vertical structure has circular steel columns filled with concrete for fireproofing reasons while the bracing diagonal elements are realized with H profiles and intumescent paint. The floor system is made with H profiles and prefabricated hollow-core concrete slabs. Composite action is developed thanks to the final concrete layer that acts compositely with the steel beams by means of shear studs.

Impact or effectiveness

The important design principle of circularity has been implemented in easily dismantled construction parts, that are just as easy to reassemble for new projects. The same applies to the facade, which is itself partly the result of material reuse. To facilitate the reuse of the building parts in the future, CrossOver has a materials passport. All materials and elements used are registered in Madaster, with the necessary information about properties and performance, current application and subsequent application options.