PROCESS OF MOUNTING OF PRESTRESSED STRUTFRAMED BEAM Russian patent published in 2003 - IPC

FIELD: construction industry. SUBSTANCE: invention can be used as process of mounting of prestressed strutframed beams employed in the capacity of bearing members of covering of buildings and structures, crane beams, etc. Process of mounting of prestressed strutframed beam includes attachment of struts of strut frame with guides on lower ends to stiffening beam, passing of draw bar through guides and its fixing on butts of stiffening beam. Upon attachment of struts of strut frame to stiffening beam finger tip of stressing strut of strut frame is entered into its groove. Then draw bar is passed into guides on ends of struts of strut frame, is anchored on ends of stiffening beam and is fixed in guide on end of stressing strut of strut frame with the aid of stoppers with conical rests. Thereafter temporary stirrup with stiff insert is mounted above protruding butt of finger tip and protruding part of finger tip is forced into groove in stiffening beam. Then fork-shaped pads are placed into clearance between butt of stressing strut of strut frame and stiffening beam and temporary stirrup with stiff insert is dismounted. Protruding part of finger tip is extended beyond limits of stiffening beam by value equal to elongation of draw bar in prestressing multiplied by cosine of angle confined between its axis and axis of stressing strut of strut frame. EFFECT: simplified process of mounting of prestressed strutframed beam and reduced labor input to process. 1 cl, 7 dwg