Concreting of 50m high steel columns, Berlin central station

This article describes the use of concrete to fill composite structural columns, in railway station buildings in the city of Berlin, Germany. The building's vertical loads are carried by composite columns where steel structures are filled under pressure through inlets at the section foot, using a specific flowing consistency of concrete. Compression members of the frameworks were also designed as composite columns and were concreted in an upright position to ensure no voids were included, before being tilted into their final position. The flowing concrete used self-compacting concrete technology to determine the correct plasticiser: a polycarboxylic ethers-based plasticiser was used with a plasticiser surplus to ensure workability and constant consistency. An increased powder content is required and organic viscosity agents improve the stability. At the site, an experimental column was erected and tests carried out on the resulting concrete before work was completed on the building. (A)

Language

  • English

Media Info

  • Pagination: 32-36
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01043783
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Mar 9 2007 8:24AM