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2023-09-283、main measures of quality control
3.1、Improve the quality of staff
The steel structure space frame production, construction and installation staff are the main undertakers of the space frame construction work. Their professional ability and technical level are directly related to the quality of the space frame steel structure and the construction effect of the building. Therefore, the professionalism of the staff should be strengthened. Training, regularly organize them to carry out business learning, learn theoretical knowledge and actual installation technology and experience related to the production and installation of steel structure space frame, and conduct business assessment. The assessment results must be related to the staff’s quantitative assessment and year-end performance, mostly for Provide staff with the opportunity to go out for visits and training, understand the manufacturing process and installation technology of space frame steel structures of other companies, broaden their horizons, and refer to advanced steel structure design schemes at home and abroad to improve steel structure space frame and apply them to specific In construction projects, if possible, increase capital investment, hire professional and technical personnel, increase technical force for the staff team, improve the technical level of staff, and strengthen the overall construction of staff.
3.2、Do a good job in the quality control of component installation and welding
In the installation and construction of the steel structure space frame, the accuracy of the installation is the key. The construction measurement control network must be strictly inspected and re-inspected. At the same time, the periodic inspection of the equipment is inspected, and the usable state of the test equipment is used to improve the accuracy of engineering measurement and inspection. degree. Strengthen the technical clarification work before installation, and the technical person in charge of the project is responsible for this work, so that the installation staff can clarify the installation process and technical points, use theodolite and total station to carry out the whole tracking measurement during the installation process, and control the accuracy of steel structure installation. Welding is an important link in the installation and construction of steel structure space frame. Strengthening the quality control of engineering installation welding is an important part of the quality management of steel structure space frame. The post responsibility system and layered management are adopted to clarify the quality responsibility scope of each person, and the team leader is responsible for assigning welding tasks and inspecting welding quality, and the staff responsible for quality inspection conducts the final inspection. Ultrasonic flaw detection is carried out on all welds at the first grade level. If there is any problem, it will be repaired in time and joint liability will be investigated. Strict standards for the use of welding materials, storage and baking should be carried out according to the specific requirements of materials for temperature and time, a registration system for welding materials should be established and improved, and relevant regulations on welding processes should be followed during operation to ensure welding quality.
3.3、Strengthen the quality management of component processing and production
Component processing is the foundation of the steel structure space frame. Only when the quality of the components is excellent and meets the design requirements can the safety and quality of the project be guaranteed. Therefore, it is necessary to strictly control the quality management of parts processing and production, and use CNC steel plate cutting machines for processing. The production workshop strictly follows the reasonable processing requirements of the drawings. Components with high precision and standards that meet the design requirements.
3.4、Do a good job in corrosion control of steel structures
According to the corrosion-prone characteristics of steel materials, how to control the anti-corrosion of steel materials should be fully considered during the processing and production of steel structure grid components. During the construction of buildings, in order to beautify buildings, construction workers often use aluminum or zinc Spray on the steel structure; because aluminum and zinc are highly mobile metals, it is easy to chemically react with the surrounding materials to form new substances, and these new substances have a strong corrosive effect, so in the process of spraying the steel The corrosion effect of the structural space frame will be more severe. If a layer of anti-corrosion protective structure is applied to the steel structure space frame as a protective layer, it can prevent corrosion. The protective coating has high resistance, good adhesion effect, and dense hydrophobicity. And other advantages, so it has a very good anti-corrosion effect, and the application of the protective layer effectively avoids safety accidents caused by corrosion of steel structures.
3.5、Improving the fire performance of steel structure space frame
Safety and fire protection is an important content of construction safety management. Therefore, fire prevention issues should be paid attention to during the processing of steel structure components. First, on-site investigation of the construction site is required, and then the fire protection design for steel structure processing and production should be formulated in combination with relevant regulations. Plan, according to the specific characteristics of the building, comprehensively analyze where the steel structure space frame needs to be installed, whether the protective material has good fire performance, the weight that the steel structure may increase after using protective measures, how much space it may occupy, and the difficulty of construction and installation. According to the actual situation and the amount of funds required, choose a practical and scientific method for the fire protection design of the steel structure space frame. Then improve the fire performance of the steel structure grid, prevent and avoid when a fire occurs, the burden of rescue will be increased due to the fall of the steel structure space frame, and even danger will be caused.
With the marketization of the economy, people pay more and more attention to the quality and appearance of buildings, and construction engineering enterprises are facing a severe test. With the diversification of building structures, the application of steel structure space frame construction technology in building construction is becoming more and more popular. By analyzing the problems existing in the construction of steel structure space frame, this paper discusses the overall hoisting method, high-altitude bulk method, high-altitude sliding The construction and installation technologies of steel structure space frame such as moving method, strip or block installation method, adopt to improve the quality of staff, do a good job in the quality control of component installation and welding, strengthen the quality management of component processing and production, and do a good job in the corrosion of steel structures. Take measures to control and improve the fire performance of the steel structure space frame, strengthen quality management, and improve the stability and strength of the building.
