Steel structure installation precautions

Hits：1431 Time：2017-3-30

　　Steel structure installation has many installation points and matters needing attention, according to the state of the steel structure in accordance with their own professional summary of the steel structure in the installation of easy to make the following situation of installation notes:
1 position measurement
According to the design data, the horizontal elevation, axis and column spacing of the foundation were measured. At the top of the base, the cross line of the two axis is shown as the positioning datum of the mounting column.
2 column installation
In order to eliminate the influence of the error of the length of the column on the elevation of the column, the 1m is taken as the section of theoretical elevation from the upper plane of the bracket. On the upper surface of the column bottom plate, the cross line of the vertical and horizontal axis through the center of the column is marked as the benchmark for the installation and positioning of the column. Installation of the column and the basis of the cross line overlap, first with the level of the column on the basis of the theoretical elevation of the mark to correct the elevation of the column, and then pad pad pad, tighten the screws. Then two theodolite from the axis of the two axis to correct the verticality of the column, to meet the requirements of the use of double nut bolts tightened. For the single unstable column, the temporary protection measures can be added. For the design of column support column, with the help of the installation of column support, to enhance the stability of the structure.
3 crane beam installation
Before installation of the crane beam, it should be checked, when the deformation is not over time to install. A single piece of crane girder hoisting should be promptly with the bracket bolts, and the connecting plate between the edge and the column beam connection, with the level of instrument and theodolite collimation adjustment, to meet the requirements after the bolt is tightened.
4 roof beam installation
When the roof beam is assembled on the ground, the components should be checked. When the component deformation is not overrun, there is no sediment and other debris on the friction surface of high-strength bolts, and the friction surface can be formed and dried, then the ground can be assembled on the ground. When the utility model is assembled, the component is padded by a non oil sleeper, and both sides of the member are supported by wooden bars to enhance the stability. The assembly of roof beam is taken as a unit between two columns:
胜邦钢结构

Straightness of beam;
The size of the bolt hole which is connected with other components (such as column). Adjust the inspection to meet the requirements, tighten the high strength bolts.
5 accessories installation
Roofing purline, wall purlin installed at the same time. Before the installation of purlin, check the deformation of the component, such as a gauge for processing, remove surface oil and sediment component. The number of purlin as a group, with a cross in the hoisting, after installation, check the purlin slope. The requirements of purlin linearity control in the allowable deviation range, or by connecting bolts (if necessary cushion) to be adjusted.
6 re inspection, welding, repair paint
After the completion of the installation of all the components of the re inspection, adjustment, to meet the design requirements, on-site welding, repair of the damaged parts of the paint repair.

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