Initially, the anchor bolts have a gradual stability, t […]
Initially, the anchor bolts have a gradual stability, the role is to firmly connect the cast iron platform and the
foundation to avoid displacement and overturning during work. The cast iron slab is leveled with shim iron during
installation and then fixed with foot bolts. What are his fixed steps?
Preliminary fixation: Use the short steel bar head as the support of the foundation beam, stand on the platform
cushion, and weld it firmly with the foundation beam to prevent the foundation beam from shifting;
The second step of fixing: each anchor bolt is used to weld the short steel bar, and the bolt is supported on the
cushion layer. After the bolt is finally fixed, the bolt support foot is welded to the reinforcement mesh of the
platform to fix the anchor bolt to prevent construction. Displacement.
The third step is fixing: the location of the positioning stirrups is determined, and the positioning stirrups are
used to assist in fixing the anchor bolts. After the anchor bolts are fixed, a positioning stirrup is set in the
middle of the anchor bolts, and each bolt is welded horizontally with steel bars to make a closed stirrup to ensure
the cross section of the anchor bolts, and the bolts and foundation beams are integrated by welding with steel bars .
Four-step fixation: Set a positioning stirrup on the top of the anchor bolt, so that the positioning stirrup and the
short column are integrated into one.
Adjust with a calibrated theodolite, and review the overall planar position of each bolt group, which should meet the
dimensional accuracy requirement of no more than 2MM; use a spirit level to measure the height of the bolt group, and
should meet the dimensional accuracy requirement of no more than 2MM; use a vertical line to straighten Verticality,
to ensure that the error is within 1MM. After checking that the dimensional accuracy meets the requirements, remove
the positioning steel plate and all nuts.