METHOD FOR STRAIGHTENING OF CRANE UNDERWAY Russian patent published in 1998 - IPC

FIELD: bridge crane underway construction. SUBSTANCE: performed is levelling of crane underway made up of at least three sections with each of them accommodating girder resting on supporting column. Determined are values of deviation of girders from straight line in vertical and horizontal planes above each of columns. Girders are connected by removable cover plates above intermediate columns, and released are anchor bolts which fasten girders on extreme columns. For vertical displacement of track sections with released fasteners, middle section of underway track is subjected to load by mass of crane. For vertical displacement of girders in zones of intermediate columns, released are anchor bolts on these columns, and corresponding extreme sections of underway track are subjected to load by mass of crane. EFFECT: high efficiency. 2 dwg