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The connecting materials of the steel structure project should meet the following requirements

Time：2020-07-08

Steel structure building construction is not only the need for steel structure this raw material, in the connection of various steel structure materials will use a part of the steel structure connection material, and steel structure connection material is required, to meet a certain standard to be put into use, now with the steel structure engineering to understand it!

1. The electrode used for manual welding of steel structure should comply with the provisions of the current national standard "carbon steel welding rod" GB/T 5l17 or "low alloy steel welding rod" GB/T 5118. The selected steel structure electrode model should be compatible with the mechanical properties of the main metal. For structures that directly bear dynamic load vibration load and need to check fatigue, low-hydrogen type electrodes should be used.

2. The welding wire and corresponding flux used in automatic welding or semi-automatic welding should be compatible with the mechanical properties of the main metal and should comply with the provisions of the current national standards.

3. Ordinary bolts should comply with the provisions of the current national standards "Hex Head Bolt C Grade" GB/T 5780 and "Hexagonal Head Bolt" GB/T 5782.

4. High-strength bolts should comply with the current national standards "High-strength Hex Head Bolts for Steel Structures" GB/T 1228, "High-strength Hex Nuts for Steel Structures" GB/T 1229, "High-strength Washers for Steel Structures" GB/T 1230, "

Technical Conditions for High-strength Hex Head Bolts, Large Hex Nuts and Washers for Steel Structures" GB/T 123l or "Torsion-shear high-strength bolt connection pair for steel structures" GB/T 3632, Technical Conditions for Twist-shear High-strength Bolt Connection Pairs for Steel Structures" GB/T 3633.

5. The material of the steel structure cylindrical head welding nail (bolt) connection should comply with the provisions of the current national standard "Cylindrical head welding nail" GB/T 10433 for arc bolt welding.

6. The rivet should adopt BL2 or BI specified in the current national standard "Carbon Steel Hot Rolled Round Steel for Standard Parts" GB/T 7l 5. Made of No. 3 steel.

I hope the above introduction to the standard requirements for the use of steel structure connection materials will help you, do you want to know more? Call the website consultation number directly and contact Xirong steel structure!

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The connecting materials of the steel structure project should meet the following requirements

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