Self-supporting element for roof structures and combinations thereof Patent #: 3978635
ApplicationNo. 05/757973 filed on 01/10/1977
US Classes:52/222, TENSIONED OR FLEXED SHEET FACING52/644, Arcuate chord52/650.3, Openwork deck, walkway, ceiling, etc.52/654.1, Parallel trellises or sheets held by disparate connector52/691, Truss with inclined lower chord52/693, Diagonal bracing52/745.08Using prefabricated unit
ExaminersPrimary: Braun, Leslie A.
Attorney, Agent or Firm
International ClassesE04B 7/12 (20060101)
E04B 7/08 (20060101)
AbstractA characteristic feature of the present invention lies in that in the building roofing structure is made of a number of similar elements in the form of an arch and a tie beam. The tie beam of each arch is made of at least one panel with a framework comprising longitudinal chords and cross-pieces and of a prestressed sheet covering connected to the framework.