1. Method for anti-corrosion and anti-corrosion of communication towers
All components of steel tower structure (ground bolts) All of them need to be rust-proofed. Generally, hot-dip galvanizing should be used, which requires 30 years of corrosion resistance. 2. The thickness of the rust-preventing layer requires that the thickness of the galvanized layer of the member should meet the following requirements: (1) For members having a thickness greater than or equal to 5 mm, the thickness of the galvanized layer shall be not less than 86 μm; (2) For members having a thickness of less than 5 mm, the thickness of the galvanized layer shall be not less than 65 μm. 3. Other requirements The galvanized layer of the component shall have practical lubrication. No burrs, diffuse tumors and excessive agglomeration shall be allowed at the joints, and there shall be no defects such as pickling and iron. The galvanized zinc layer should be uniform and firmly bonded to the base metal, and it will not peel off or bulge after hammering. 4. Anti-corrosion and anti-corrosion requirements for the bottom bolt and the sole plate. The bolts on the top surface of the base should be exposed to the anti-rust method before the steel tower structure device, and properly protected to prevent bolt corrosion and damage. The gap between the bottom of the steel column foot (flange) and the base is densely ground with fine stone concrete after the steel tower installation is completed. After commissioning and testing, the tower foot and anchor bolts at the foot of the tower should be closed with low-strength grade concrete and the thickness of the protective layer should not be less than 50mm. The communication tower contractor should be responsible for lifetime maintenance. After installing the tower for one year, the verticality of the tower should be re-examined and corrected. After the correction, the contractor of the tower installation shall pour the exposed anchor bolts with fine stone concrete to prevent the anchor bolts from corroding. 3. The iron tower is generally inspected every six months. In addition, every time there is a wind, earthquake or other special situation of level 8 or above, it should be fully inspected. Every inspection must be responsible, detailed records, maintenance files, and should be dealt with in a timely manner if there is any problem.
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