Laterally turning method of large panel framework type workpiece

The invention relates to a laterally turning method of a large panel framework type workpiece. The laterally turning method comprises the following steps: firstly, putting the workpiece horizontally, and hoisting by adopting a crane, wherein a forged steel bilateral hooked head is adopted for hoisting; secondly, arranging two hoisting points along the length direction; thirdly, hoisting by four equal-length steel wire ropes; fourthly, binding the workpiece horizontally at the hoisting point I and the hoisting point II respectively by adopting the same mode; fifthly, adjusting the steel wire ropes so as to enable the reservation length of the head parts to be equal to that of the tail parts; sixthly, hanging the steel wire ropes to the bilateral hook head respectively; and seventhly, hoisting the workpiece by the crane slowly, wherein one side of the workpiece is always kept to be in contact with the ground in the hoisting process until the workpiece turns over by 90 degrees. Compared with the prior art, the laterally turning method has the beneficial effects that the lateral turning operation of the large panel framework type workpiece can be completed by only one crane and the steel wire ropes, so that the time and cost waste for designing and manufacturing a special lifting appliance is prevented; the rotation operation and the turning operation of the laterally erected workpiece also can realized; the laterally turning method is simple, feasible, safe and reliable.