Installation points of column in steel structure plant construction

1. The elevation observation point and center line mark should be set before the steel component device. For the observation point and mark setting position of a steel structure plant building project should be consistent, and the following provisions are provided: First, the elevation observation point should be set in accordance with the following provisions: The elevation observation point should be set on the basis of the bull leg (shoulder dyeing) supporting surface to facilitate the observation; A column without a backbone should be based on the center of the last device hole where the mass end of the column connects with the truss. Then, the setting of the center line mark should conform to the following provisions: a central mark is set in the direction of the upper surface line on the column bottom plate, and a central mark is set on both sides of the line direction; A center line is arranged in the upper and vertical directions of the column body surface, and a center mark is arranged in the bottom, middle (ox leg or shoulder beam) and top of each center line; A central mark is arranged on the outer surface of the two columns in the direction of the line.
2.During the construction of steel structure plant, the multi-section column device should be assembled into a whole by components and then lifted.
3, the correction of the steel device should be the following provisions: exclude the temperature difference caused by sunlight garden surface irradiation; Column perpendicularity should be controlled according to temperature (pitch). After the adjustment and fixing of crane beam, roof frame device and crane beam, steel column should be retested, and timely adjustment should be made if the deviation exceeds the allowable deviation.
4. Timely fixing measures should be added after hoisting the columns with large slenderness ratio.
5. The device of column support should be carried out after the column is aligned, and the device of column support should be installed under the condition of ensuring the perpendicularity of the column.
6.Quality is the life of construction engineering, steel structure plant construction is the primary attention to quality, only quality first, the enterprise can be long-term, and only good technology and correct and reasonable operation method, to ensure the high quality of the project.