How To Buy Bridge Steel Plate

1. The importance of steel plate structure. Steel plate structure and components according to its use, location and the severity of damage results, can be divided into important, general and secondary three categories, different categories of use environment should choose different steel plates, heavy industrial building structures, long-span structures, high-rise or super high-rise civil buildings and heavy structures, etc., all belong to the first level structure, and should choose better quality steel plates; General industrial and civil buildings belong to the secondary structure, such structure of the steel plate quality requirements are not so detailed, so in the purchase can be in accordance with the use of the environment and construction use of ordinary quality steel.

2. Load of steel plate. The load of steel plate can be divided into static load and dynamic load, directly bear the dynamic load, such as in the crust structure activity more active area, should choose good toughness and good fatigue resistance steel; For structures bearing general static loads, Q235 steel with higher cost performance can be selected under normal temperature conditions.

3. Connection method of steel plate. Generally speaking, the connection method has two kinds of welding and non-welding, in the welding process, may produce welding deformation or other welding machine defects, resulting in cracks or brittle fracture of the structure, therefore, the welding structure of the material requirements should be more stringent.

4. Temperature and environment of the structure. The temperature and environment of the structure, as well as the corrosion medium, are one of the key points that need to be considered. At low temperature, structural members, especially welded structures and tensile members, are prone to low temperature cold and brittle fracture damage, and steel plates with low temperature brittle fracture resistance should be selected.

5. Thickness of steel plate. It is recommended that when purchasing, the thickness of the steel plate should be selected according to the needs of its own use scenario.

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