ARCHES GIVE OPEN LOOK TO WASHINGTON METRO STATIONS

An important feature of underground stations being constructed for the Washington Metro are massive concrete arches designed to avoid the need for roof support pillars. The stations are semicircular in cross-section with very low sidewalls joined by wide arches. Stations are 183 M long and 19.5 M wide with cast in place sidewalls and arches reaching a height of 10 M. Blaw-Knox movable steel forms used in the arch construction make use of one or more travellers providing a means for moving the forms and also support for the forms during placement and stripping. Details are given of construction methods used for casting the arches. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Publication Date: 1979-7-8

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00302962
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jan 30 1980 12:00AM