Gantry crane splicing site construction requirements which

      Gantry crane is Hengjia in workshops, warehouses and empty field for material lifting material lifting equipment.  gantry crane  laying on both sides of the bridge along the elevated track longitudinally running, you can take advantage of the space under the bridge lifting material from ground equipment obstacles. Indoor and outdoor industrial and mining enterprises in the iron and steel industry, railways, ports and logistics flow and other departments and sites have been widely used, is the most widely used, the largest number of a lifting machinery.
      bridge gantry crane  parts splicing What construction requirements
    A) the transverse flange plates and web butt welds not arranged in the same section beams, door cranes are staggered welds should be more than 200mm.
    2) flange plate, web and the beam transverse butt welds should be the size of the fillet weld stiffeners are staggered, with the large reinforcing plate stagger ≥ 150mm, with small reinforcing plate stagger ≥ 50mm.
       Main LIANG Cheng-rail longitudinal fillet welds and fillet welds other arrangement with four longitudinal girder flange plate and the fillet weld web connections,  overhead gantry crane  with wide flange side rail box girder structure.
       Gantry crane bridge in the manufacture, the walkway side of the welding residual stress after the drawing, when the transport and use of the process after the release of residual stress, resulting in two main beams inward lateral bending; And the main beam in the horizontal inertia loads, press lateral stiffness to allow a certain bending conditions, will cause a large bending deformation superposition.