Yx85-250-500 galvanized floor bearing plate can meet the requirements of rapid construction of main steel structure, provide a firm operation platform in a short time, and adopt the flow construction of multi-layer laying profiled steel plate and layered pouring concrete slab. So what should be paid attention to in the construction of yx85-250-500 galvanized floor bearing plate?The spacing of steel structure column grid is generally 5 ~ 9.0m × 8 ~ 15m, the spacing of secondary beams is 3M, and the blanking length of floor support plate is 4.97 ~ 8.97m. It is difficult to transport and install, especially when the floor bearing plate is vertically hoisted from the arc area, it is difficult to pass through the secondary beam from top to bottom, which interferes with the normal welding process of the secondary beam. If the cutting length is controlled at 3-6M, the problem that the secondary beam cannot be lifted during vertical transportation can be avoided. The floor bearing plate shall be hoisted with special soft sling. Check whether the soft sling is torn or cut during each lifting. When the floor bearing plate is placed on the steel beam, the probe shall be prevented. During laying, the operators shall fasten the safety belt and ensure that the safety belt is fixed on the surrounding safety rope during laying. Penetration spot welding is adopted for welding. Before welding, the welding current shall be adjusted by preparing the remaining materials for arc striking test welding. Since there is no horizontal formwork and vertical support at the bottom of the floor bearing plate, the distribution should not be too concentrated during concrete pouring, and the flat vibrator should be used for vibration in time.