The steel bars generally used for bridges are: ordinary steel du bars: R235, HRB335, HRB400, KL400. Prestressed dao steel bars: stranded zhuan, steel wire, fine-rolled threaded shu steel. For details, please refer to: "Technical Specification for Construction of Bridges and Culverts" to select steel bar models.
Extension: Bridge steel mesh: also known as: welded steel mesh, steel welded mesh, steel welded mesh, steel welded mesh, steel mesh, etc. The longitudinal and transverse steel bars are arranged at a certain interval and are at right angles to each other, all Meshes where the intersections are welded together. Reinforced mesh is used in beams, columns, floors, roofs, walls, concrete pavements, bridge deck paving, airport runways, tunnel linings, box culverts, dock floors, prefabricated components and other fields of industrial and civil houses.
The welding procedure of the steel mesh is controlled by computer to ensure the welding quality and the stability of the steel mesh spacing without losing the strength and cross-sectional area of the original steel. The use of steel welded mesh can save 30% to 40% of steel, shorten the construction period by 80%, save labor by 60%, and greatly reduce costs, thereby bringing huge economic and social benefits.
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