Can the attached arm of the tower crane be welded?
The following points: the calculation of tower crane according to the instructions provided with the attachment of the building, a maximum load attachment device (Fig. 14-44), therefore, should be in the way of adhering bar load as the design or check attached bar section basis.
The calculation of the attachment of tower crane mainly includes three parts: attachment rod calculation, connection calculation of attached bearing and calculation of attached frame. (1) the attachment bar calculates the attachment bar and is calculated by the compression member of the pivot shaft hinged at both ends. 1) the internal forces of the attached rod and the internal force of the connecting rod are taken as required by the instruction; if the specification does not specify, or when the spacing between the two supports connected with the building is changed, the calculation shall be carried out.
The attached arm of a tower crane can not be welded and can only be bolted.Adhesion calculation of tower craneTower crane attachment (anchor) device structure, internal force and installation requirements in the use of narrative instructions so in the tower crane installation and use, the use of units can be executed according to the requirements, do not need to calculate, only when the tower crane installation position to the building from the over manual provisions, to increase attached rod (Zhi Chenggan) two, spacing or attached rod connected with a building when changing to attached calculation.
