DEVICE FOR PREVENTION OF BREAKING AND STRAIGHTENING AND INCREASING CARRYING CAPACITY OF CRANE RUNWAY BEAM Russian patent published in 2003 - IPC

FIELD: construction engineering. SUBSTANCE: invention is aimed at straightening of metal structures of shops with heavy-duty cranes. Proposed device includes crane runway beam supported in middle of span and connected by X-shaped column. Said X-shaped column forms two intermediate supports in thirds of beam span. Recess is made in base of column to accommodate power jack engaging with base of column and carrying base. EFFECT: prevention of breaking of crane runway beam at excessive development of fatigue cracks, reduced material usage in structure. 1 ex, 5 dwg