What are the special requirements for bridge steel plates during the manufacturing process?

Bridge steel plate is a thick steel plate specially used for manufacturing bridge structural parts. It is made of special steel types such as carbon steel and low alloy steel for bridge construction. The steel number is marked with q at the end. The manufacturing process of bridge steel plates has the following special requirements:
Dimensional accuracy: Steel structural parts need to ensure their dimensional accuracy during the manufacturing process to ensure the stability and safety of the bridge. In order to meet high-precision requirements, advanced processing technologies such as CNC cutting and CNC bending are usually used in the manufacturing process to ensure the dimensional accuracy and geometric consistency of components.
Strength and stiffness: Since bridges need to bear huge loads, steel structural members need to have high strength and stiffness to ensure the stability and load-bearing capacity of the bridge. In order to improve the strength of steel structural parts, high-strength steel is usually used during the manufacturing process, and appropriate processing and heat treatment are performed to increase its strength and hardness.
Surface quality: The surface quality of steel plates for bridges should comply with relevant national standards, such as GB/T 8923-2008 "Steel surface corrosion grade and rust removal grade before coating", etc. The surface should be free of cracks, bubbles, scars, folds and other defects, and should be treated with rust prevention. 
Quality control: Strict quality control should be carried out during the manufacturing process to ensure that the flatness, edge neatness, surface quality, etc. of the steel plate meet the requirements.
These special requirements ensure the quality and performance of bridge steel plates to meet the needs of bridge construction.