Steel Space Frames: Optimizing the Future of Ore Storage
Control of 3D Space Coordinate of Steel Space Frame
For steel space frame structure, precision instruments must be used for the spatial positioning of ball joints. Therefore, it is necessary to convert the original coordinates into polar coordinates, and to determine the spatial position of the spherical node by means of point angle ranging and elevation positioning. The theodolite, far-infrared rangefinder, and level can be used to achieve the design accuracy. Numerous data from around the world show that positioning with the center of the dot and mounting from the outer ring inward has more advantages, it can reduce the closure error. According to the hoisting capacity, we divide it into four ring belts from the outside to the center, and adopt flow operation. After the small units are prefabricated on the ground, they are assembled one by one. The small-unit ball nodes on each annular belt are provided with ball bases on the scaffolding. The three-dimensional space coordinates of this base completely correspond to the spherical nodes of the small unit after the measurement. Dimensions and coordinates should be checked and recorded. Due to the flow of water from the outside to the inside, the three-meter positioning method can be realized. The ball base on the scaffold should be made into a form that is easy to adjust, and it should be temporarily fixed after adjustment.
The above is an introduction to the control of the three-dimensional space coordinates of the steel space frame, which can help you understand the space frame structure faster. Of course, you can go to our homepage to see more related content.
Precautions for installation of steel structure space frame in autumn and winter
1. According to the average temperature specification, the data map of the installation sequence of the steel components is compiled, and the installation is carried out in strict accordance with the sequence during construction.
2. When assembling the space frame components, expand and assemble from the inside to the outside according to the order specified by the process, and do a test to determine the shrinkage value of the weld that needs to be reserved during the assembly at low temperature.
3. When the steel components are made at normal temperature and installed at low temperature, the shrinkage of the components should be fully considered according to the difference in ambient temperature, and technical measures to adjust the deviation should be taken during construction.
4. The columns and main beams installed at negative temperature should be corrected immediately. After the correct position correction, they should be permanently fixed immediately. The components installed on the same day should form a stable space system.
5. When the high-strength bolted joint is installed, the friction surface of the component shall not have snow and ice, and shall not be in contact with dirt, oil and other stolen goods.
6. When using steel cables to hoist steel components, anti-slip spacers should be added, and the gusset plates that are lifted at the same time as the components, and the fixtures and other items that the installer needs to use are securely tied with ropes.
7. When the steel structure space frame is installed on site, it is necessary to build a protective shed in case of rain and snow or when the wind speed is above 6m/s.
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