The vertical deviation of the tower crane is permissible
I have answered this question before. In the industry standard "technical specification" construction site mechanical equipment inspection (JGJ160-2008), in the form of mandatory provisions stipulated: basic height of tower crane installed to the design rules, the tower axis of lateral verticality deviation of bearing surface should not be greater than 0.4%; After attachment, the following vertical deviation should not be greater than 0.2%. The "basic height" of "design rules" in "strong rules" is the "maximum independent installation height" on the site.
The construction tower crane installation and use, remove the safety technical regulations on JGJ196-2010 have specific provision: the tower verticality deviation: allowed under no-load without wind condition, the tower axis of lateral verticality deviation of bearing surface should not be greater than 4 per thousand. After attachment, the following vertical deviation should not be greater than 2 ‰. According to the installation status of tower crane, the vertical deviation tolerance is divided into 4/1000 or 2/1000. Tower crane's largest independent installation height (not the biggest installation height should be attached to the wall, there are provisions in the instructions) and the height of the free end (tower wall attached to the highest point above the tower crane under axisymmetrical height, there are provisions in the instructions) the verticality deviation allowed range is 4/1000; The vertical deviation below the point of the tower is 2/1000.
The independent height is four thousandths, and the attachment height is two thousandths below the highest wall.
The vertical deviation range of the central resection machine is allowed within four thousand.
