Before lifting the floor slabs, it is necessary to check the presence of design gaps between the columns and plate collars, between the slabs and walls of stiffening cores, as well as the cleanliness of the holes provided for the lifting rods.
Lifting of floor slabs should be carried out after the concrete reaches the strength specified in the project.
The equipment used should ensure a uniform rise of the floor slab with respect to all columns and stiffening cores. The deviation of the marks of individual reference points on the columns in the process of lifting should not exceed 0.003 span and should be no more than 20 mm, if other values are not provided for in the project.
Temporary fixing of slabs to columns and stiffening cores should be checked at each stage of lifting.
Structures raised to the design mark should be fixed with permanent fixings; at the same time, intermediate acceptance certificates of the structures completed by the installation shall be executed.
Что бы оставить комментарий войдите
Комментарии (0)