The bridge plate has A3q used for riveting bridge structure and 16Q used for welding bridge structure; Low alloy steel for bridge structure is 12Mnq, 12MnVq, 15MnVNq, 16Mnq, etc. The thickness of bridge plate is 4.5~50 mm. The main use of bridge plate: used for building railway Bridges, highway Bridges, cross-sea Bridges, etc., requirements have higher strength, toughness and bear the load and impact of rolling stock, and to have outstanding fatigue resistance, a certain low temperature toughness and atmospheric corrosion resistance. The steel for tether welding Bridges should also have good welding performance and low notch sensitivity.
Bridge plate is also called support steel plate, leveling steel plate, groove steel plate, etc., which is usually used for the material Q235 or Q345 steel is the common steel plate material model. The gap between the support and the cushion stone should also be filled with epoxy resin mortar. The wedge-shaped steel plate should not only ensure the density of the gap but also achieve the same strength as the cushion stone. After the support is installed, the embedded steel plate of the beam bottom support is connected with the steel plate of the upper cover of the support.
Railway or highway Bridges bear the impact load of vehicles, bridge plate requirements have a certain strength, toughness and T outstanding fatigue resistance, and the surface quality of steel requirements are high. Basic open hearth steel is often used in bridge steel plate, and common low alloy steel such as 16 manganese, 15 manganese alum nitrogen (YB168-70) tether welding bridge steel plate should also have good welding performance and low notch sensitivity.
Bridge plate formwork is used to build railway or highway bridge steel formwork. It is widely used in construction engineering with its characteristics of many uses, beautiful appearance of concrete pouring molding, the wide application of bridge plate is also in line with the policy of "replacing wood with steel" in our country. The thickness of steel plate is 4-20mm, the width is 1.0-4m and the length is 2.0-16m.
