Switch-reference in the Northeast Caucasus

A composite truss system useful in building applications for form work or permanent installation. Full section chords, struts, couplers, connectors and brace components of tubing are provided in standard sizes for cooperative interconnection and use to provide trusses of various length, height and inclination. Fastener elements may be used at selected positions or openings to provide desired adaptability for various job site requirements. Close interfit and telescoping of elements assures efficient load transfer, assembly and shipment. Job site handling of sectional deck forms is aided through use of a plurality of joined together truss sections mounted on roller or jack units providing height adjustment and form release features.