est suspension

The bridge crane lifting off the ground 0. 3-0. 5m, after 10min after no abnormality, further shaking bridge crane testing, inspection winches, masts, ropes and anchor cable winds of reliability, all normal , continue lifting.
(5) install the operating room
The bridge crane lifting off the ground about 2.5m high, setting up the sleepers under the crane heap, so that the crane resting on the sleepers on the heap, and then installed in the operating room on the frame. Zhuangwan cab car after adjusting the position, this position was calculated to determine the mast lifting points on both sides to reach equilibrium.
Then leave the sleeper crane helicopter heap a small distance, carefully adjusting the position of the car, make sure to balance again after fixing the car. Check other lifting forklift jacks, safe and reliable confirmation only after the lifting style lifting.Bridge crane within the plant, because the top rail from the roof chord close, plus overhead cranes are larger in size and weight, it is not mechanized lifting. SMEs often use a single mast crane lifting the overall standing, so you can improve efficiency, shorten the construction period and reduce high-altitude operations, the construction procedure is as follows.