In the steel structure before the installation of the basic parts of the site will often appear such a problem, the anchor bolt damage is not common, but recently there is a customer consultation on how to repair the anchor bolt damage, analysis of the reasons for the problem of anchor bolts And how to make up for such problems.
First, the basic anchor bolts thread damage, steel construction column can not be installed when the nuts and fastening, resulting in screw thread damage reasons are:
1. anchor bolts in the transport, disassembly process by the impact or improper storage, resulting in serious corrosion of the thread.
2. or after the installation of bolts did not take protective measures, subject to external damage.
3. On-site use of bolts for welding conductive zero line, the arc burns to damage the thread.
4. The use of bolts for pulling rope tension of the ligation point.
Due to the screw thread damage, can not screw into the nut tightening steel structure column and other components, will directly affect the structural force transmission and stability of the overall quality of steel construction will be unstable factors.
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