ERECTION METHOD OF BRIDGE BEAM

摘要

PURPOSE: To simplify erection equipment and construction work so as to improve economy and constructing performance in the erection method of a bridge beam by a support system span-by-span precast block construction method. CONSTITUTION: In the erection method of a bridge beam by a support system span-by-span precast block construction method, a bridge crane 14 is installed across two parallel girders 11a forming an erected girder 11, and a travel device 15 is provided at the lower part of the bridge crane 14. A block 3 transported by a trailer 24 on bridge cross beams 2 in an erection completed span is lifted by the bridge crane 14. The bridge crane 14 travels in the axial direction of a bridge on the erected girder 11 while hanging the block 3 and lowers the block 3 in a specified position. The blocks 3 are jointed in regular succession to complete erection work in one span.