The Distance Control Of Steel Trestle Bar Is Different

In order to improve the bearing capacity of the structure, a favorable force is applied to the component in advance. The steel trestle adopts materials to eliminate the cracks caused by live load, which can make the site joint of concrete structure safe and reliable. Steel trestle adopts pre-stress technology, which is suitable for various construction methods without support, and can be used for concrete bridge, so as to reduce its cost and reduce driving noise.

When welding, welding is performed at the intersection of each flat steel and cross bar, so that it can be fixed to ensure the quality of the product. The distance of the load flat steel and the distance of the bar should be specifically designed and tested, and the distance of the load flat steel is generally controlled between 40 mm and the distance of the bar is controlled between 165 mm.
The compression lock of the steel grid plate is fixed by pressing the cross bar into the loaded flat steel through the press. The welding process of the steel grid plate should be selected according to the material and thickness table of the grid plate, and then adjust the welding current to weld the sample with different currents. After checking that the diameter of the molten core meets the requirements, adjust the pressure, welding time and current within the appropriate range for welding and testing the sample.

Thick plate or quenched material can not tear out round holes and convex, but the diameter of the molten core can be judged by the shear fracture, and low power measurement and stretching test are needed to determine the penetration rate. It is better to have a little bubble, because the density of the good resin is larger, it will produce fewer small bubbles, and you can carry out a load-bearing test on the hot-dip galvanized grid plate to see whether the facility will be deformed.