Tower crane installation remove the matters needing attention

For the use of tower cranes, before the installation of technical preparation, installation personnel, installation and remove the matters needing attention are very important, the attention to detail can ensure the using performance of tower crane, and extend the service life of tower crane, etc. Tower crane installation note: removal tower crane technology preparation before installation and the matters needing attention: ( 1) According to the requirement of the tower crane specification and basic design data, check the quality of construction master project. Detection of tower crane foundation geometry size error, should be within the scope of the permit, determination of horizontal error size, in order to cushion iron. Tower crane foundation construction should meet the strength requirement of the scheme. ( 2) Details about the installation of the crane technology condition, safety personnel should be prepared, technical director shall hand over to treat to crane driver installation process and lifting the main parts of size, weight, height, crane agreed stopping place, arm length and main technical parameters such as elevation. ( 3) Call, head of the installation workers, crane crew and hoisting command staff meetings, common explanation to carry out the safety technical measures, special crane supporting foot work is responsible for personnel, supporting feet must achieve strong enough. Tower crane installation personnel and tools preparation work before: ( 1) Foundation construction: shall be fixed according to the construction scheme of Kentucky location assurance infrastructure, foundation bearing capacity is 200 kn / ㎡, or ensure that dense concrete, anchor bolt location deviation (2 mm or less Anchor bolt according to the instruction manual before installation drawing demands or construction scheme in processing) Prior to installation of tower crane, foundation concrete strength will reach more than 90%. ( 2) Attached ZhaoLiChu concrete strength by more than 70% or higher, embedded parts into position deviation in 5 mm or less. ( 3) The construction site according to the level 3 protection standards match the installed power box. ( 4) Before installation maintenance must be made to ensure that the tower crane performance is good. Construction site flat open, the road must level off, compaction, and have enough installation personnel. ( 5) Ready to hoisting machinery, installation tools, auxiliary equipment and technical data. ( 6) Before the installation must be installed after the disassembly scheme for examination and approval of the administrative department of industry, can install and remove. Tower crane disassembly precautions: ( 1) Remove the homework before the project director should organize all remove staff to study safety technical measures, technical clarificaiton, implement every work. Appoint someone who's in charge, delimit the safety area, it is forbidden to enter the work area, non-working personnel reinforced wall frame and connection bolt. ( 2) Remove the homework personnel responsibilities clear, hold position, must be absorbed in working, dynamic and observation tower crane upside down, is to stop the machine immediately to check, if any, the fault may not continue to remove has not been ruled out. ( 3) Aerial work personnel must fasten your seat belt, the antiskid shoes, wearing a helmet. ( 4) Check the hydraulic system to ensure stable normal, no jam, the phenomenon such as holes. ( 5) The tower height to stipulations removal, shall not be attached to the wall down the first device