The invention discloses a symmetrical dismounting construction method for an attachment device of a tower crane. Firstly, after the tower crane is adjusted to be balanced, supporting rods are fastened to standard sections through steel wire ropes by means of rope tensioners, through-wall bolts of an attachment connection base are dismounted, and the supporting rod in the direction of a cargo boom is dismounted through a tower crane lifting hook in a suspension mode; then, a symmetrical dismounting steel wire rope is bound on the back of a main hoist, and a ring beam sleeve frame and the supporting rod which are attached in the direction of a balance boom are dismounted in the mode that the back bound steel wire rope and a main hoist rope operate synchronously through a fixed pulley fixed to the balance boom. When the ring beam sleeve frame of the semi-side attachment device in the direction of the balance boom is dismounted, a ring beam sleeve frame attached in the direction of the cargo boom is firstly fastened to the standard sections through the steel wire ropes by means of the rope tensioners, and is prevented from falling off when flange connection bolts are dismounted. Finally, the ring beam sleeve frame in the direction of the cargo boom is dismounted through the tower crane lifting hook in the suspension mode. According to the method, construction is safe, reliable, easy, convenient, scientific and efficient, and civilized construction and the construction environment are guaranteed to the greatest extent.
Symmetrical dismounting construction method for attachment device of tower crane
2015-06-10
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
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