As a key part of the gas station building, the installation quality is directly related to the safety, functionality and durability of the gas station. The following is the detailed process and points of gas station space frame installation:
Preparation before installation
1.Design program review
Carefully review the design drawings of the space frame of the gas station to ensure that the design is in line with the relevant building codes, safety standards and the actual use of the gas station needs. The design should specify the structural form of the rack, rod specifications, connection, load calculation and other key information, and should be reviewed and signed by professional structural engineers to confirm.
For example, for the gas station space frame in earthquake-prone areas, the design should fully consider the seismic requirements and adopt appropriate seismic construction measures, such as increasing the number of diagonal braces and improving the strength of node connections.
2.Site investigation and measurement
Conduct a comprehensive survey of the gas station construction site, including topography, surrounding buildings, underground pipelines and other conditions. Accurately measure the size of the installation site to ensure that it is consistent with the design drawings, to provide an accurate basis for the positioning and installation of the space frame.
If the actual situation on site is found to have deviations from the design, it should be communicated with the design unit in time to negotiate the adjustment program, so as to avoid problems in the installation process. For example, if there is a large slope on the ground at the site, it may be necessary to carry out special treatment for the foundation of the space frame to ensure the level of the space frame after installation.
3.Material and equipment preparation
According to the design requirements, purchase the space frame rods, node connectors, steel and other materials that meet the quality standards, and carry out strict quality inspection. The materials should have quality documents, such as material report of steel, product certification and so on.
Prepare complete installation of mechanical equipment required, such as cranes, welding machines, latitude and longitude instruments, level meters, etc., and ensure that the equipment has good performance and reliable operation. Before installation, debug and calibrate the equipments, such as the accuracy calibration of latitude and longitude instrument and level meter, to ensure the accuracy of measurement data.
4.Personnel organization and training
Form a professional installation and construction team, including project manager, technical person in charge, welder, installation workers and so on. The construction personnel should have rich experience in space frame installation and relevant qualification certificates, and be familiar with the installation process and technical requirements.
Before installation, technical briefing and safety training should be conducted for the construction personnel to make them clear about the installation tasks, quality standards, safety precautions and so on. For example, train the welders to master the correct welding process and operating standards to ensure that the welding quality meets the requirements; the installation of workers for the safety of work at height training, so that they are proficient in the use of safety protection equipment.
The space frame installation process
1.Foundation construction and acceptance
According to the design requirements for gas station space frame foundation construction, the foundation form usually have independent foundation, bar foundation, etc.. In the process of foundation construction, we should strictly control the quality of reinforcement binding, concrete pouring and other links to ensure that the strength, size and location of the foundation are accurate.
After the foundation construction is completed, acceptance is carried out. Acceptance includes concrete strength testing of the foundation (rebound method, core drilling method, etc.), measurement of foundation dimensions, axial deviation checking, etc. Only after the foundation acceptance is qualified, the installation of the space frame can be carried out.
2.Processing and production of space frame rods and nodes
The space frame rods and nodes are processed in the factory according to the design drawings. The cutting of rods should adopt high-precision cutting equipment, such as CNC plasma cutting machine, to ensure the length of rods and the precision of the end cuts. The processing of the node connectors should ensure their accurate size and high precision of the holes to meet the good connection with the rods.
Processing completed rods and nodes should be quality inspection, including appearance inspection (cracks, corrosion and other defects), dimensional deviation inspection (such as the length of the rod, diameter deviation, node aperture deviation, etc.), weld quality inspection (for welded nodes, the use of flaw detection methods to check the internal quality of welding). Qualified rods and nodes should be numbered and categorized for easy transportation and installation.