1The project management department is set up at the construction site of steel structure engineering, and the project manager system is implemented. The dynamic management method of “rectangular system, dynamic management, target control and node assessment” is implemented in the construction site.

 　　2The company’s excellent, experienced and well coordinated management personnel are selected to be the project manager of the project, and an engineer is selected to be the technical director, who is fully responsible for the technical problem handling and quality control of the project.

 　　3Organize the construction personnel to be familiar with the construction drawings and relevant technical data, understand the construction and acceptance standards, and prepare the detailed steel structure engineering construction scheme. 

Three dimensional steel structure engineering construction

　　4Before the commencement of construction, the technical personnel shall make a careful technical disclosure to the team, master the construction key points, and lay a good foundation for ensuring the installation quality of steel structure engineering.

 　　5From the preparation of steel structure construction to the completion and operation of the whole process, each step must be strictly controlled to ensure the work quality of each link.

 　　6Formulate the quality control table of each process, decompose the process, determine the installation content and quality requirements of each process, and record the inspection situation in self inspection, mutual inspection and special inspection.Before the implementation of the next process, verify and check the control records of the above process, and then continue the construction on the basis of the previous process, and be responsible for the next process.

 　　7Steel structure engineering implementation process handover disclosure work.At the end of the previous process, a handover disclosure system should be established for the next process. First, the implementation personnel of the previous process should make the disclosure. If the next process finds that the previous process is unqualified, it has the right to refuse the construction. Before the superior department confirms this, the normal requirements of the next process should be protected. After confirmation, the previous process should be ordered to correct and then the next process should be constructed. 

Process flow chart of steel structure engineering

　　8Inspection departments and personnel at all levels shall conduct on-site inspection of all links, closely combine the management and operation levels, and form a quality system mechanism of “top-down connection and horizontal coordination”.

 　　9According to the construction procedures of steel structure engineering, organize reasonable construction, civilized construction, assign tasks, clearly put forward quality requirements, and earnestly achieve “four insistences” and “four prohibitions”.

 The “four insistences” are as follows:

 　　A. Adhere to the principle of who is responsible for the construction quality;

 　　B. Adhere to the review and inspection system of finished products;

 　　C. Adhere to the system of “three inspections and two evaluations” (self inspection, special inspection, mutual inspection, preliminary evaluation and re evaluation);

 　　D. Adhere to quality inspection and evaluation.

 ”Four prohibitions” are:

 　　A. Construction is not allowed to start without proper preparation;

 　　B. No construction is allowed without quality assurance measures;

 　　C. Do not start work until you are familiar with the design drawings;

 　　D. No construction is allowed without technical and safety disclosure.

 　　10On site steel structure construction personnel should do a good job in the installation of data and software, fill in accurate, true and synchronized with the hardware, the inspectors should check the software at the same time when checking the hardware.

 　　11The quality assurance system of steel structure engineering shall be established and operated in the construction.

 　　12During the fabrication and installation of steel structure, the self inspection, mutual inspection and special inspection system shall be strictly implemented. The next process can only be carried out after the self inspection of each process reaches the excellent standard. The inspection work shall be carried out by personnel. The components that do not meet the quality objectives shall be marked and repaired in time to prevent the unqualified products from flowing into the next process. 

Three dimensional steel structure engineering construction site drawing

　　13The construction shall be carried out in strict accordance with the design drawing of steel structure engineering, and the post technical responsibility system and technical disclosure system shall be seriously implemented. The technical disclosure work must be simple and easy to understand, and the construction process card system shall be implemented.The construction process card must indicate the technical points and precautions of single project, and indicate the process, detection content and standard, so as to make the construction process card become the code of conduct to guide the project.

 　　14Strict material management system for steel structure engineering shall be formulated. Raw materials, semi-finished products and components required for the project must be high-quality products provided by qualified suppliers. Products without certificates are not allowed to enter the factory.

 　　15Formulate the steel structure delivery system, strengthen the quality management in the transportation process, and reduce the deformation caused by transportation and hoisting.

 　　16Block diagram of quality assurance system for steel structure engineering: (as shown in the figure below) 

Block diagram of construction quality assurance system for steel structure engineering