Bridge steel bridge girder steel mesh, also known as: Welded steel mesh, welded steel, welded mesh, welded steel mesh, steel mesh, and so is the longitudinal reinforcement and transverse reinforcement were arranged in a certain distance and at right angles to each other, all of them. Crosspoint mesh are welded together. Applications: Since the 20th century, welded steel has been widely used in the construction industry. Scope: bridges, subways, highways, airport runways, floor high-rise building, dam and port construction of reinforced concrete structures and so on. Welded mesh in bridge engineering applications primarily used in municipal bridges and highway bridge deck pavement, the transformation of the old bridge, pier crack and so on. Thousands of applications through domestic bridge construction quality inspection showed that the welded steel bridge deck pavement significantly improve the quality of the protective layer thickness of more than 97% pass rate, improve flatness deck deck almost no cracks, paving speed increased by 50%, reduce bridge deck about 10% of the project cost. Technical Standards "welded steel reinforced concrete" GB / T1 "welded steel Technical specification for concrete structures" JGJ1 "reinforced concrete rolled ribbed steel bars" GB1 "cold-rolled ribbed steel bars" GB1 specification: load rating form pavement reinforcement spacing -A grade rebar diameter Weight city car - Super 20 hung 120 no asphalt surface layer of the concrete bridge deck 100 × 100 8-10 7.9 × 12.33 asphalt surface layer of the concrete bridge deck 100 × 100 6-9 4.44 × 9.98 150 × 150 7-10 4.03 × 8.22 -B level city car - Super 20 hung 100 no asphalt surface layer of the concrete bridge deck 100 × 100 8-9 7.9 × 9.98 asphalt surface layer of concrete bridge pavement surface 100 × 100 6-7 4.44 × 6.04 150 × 150 7-8 4.03 × 5.26 level and below -15 car load without asphalt surface layer of concrete bridge deck 150 × 150 8-10 5.26 × 8.22 asphalt concrete deck surface layer of pavement 150 × 150 6-7 2.96 × 4.03