Key points for seismic design of high-rise steel structures
The construction period of the steel structure project is generally shorter than that of the reinforced silica structure project. The steel structure project is carried out in the factory workshop for more than one hour. In recent years, the manufacturers engaged in the processing of steel structures in China have sprung up, but there are few manufacturers with real technical strength and capable of undertaking large-scale and complex steel structure projects. These manufacturers are currently mainly collected and detained in some provinces and cities in southern China. Due to the quality of the steel structural components processed and manufactured in the factory, it is essential for the on-site installation of the steel structure engineering and the safety and stability of the overall structure. Therefore, the qualified supervising engineer is stationed in the factory to supervise the whole process of production and processing of steel structural members. It is an important content that the supervision work must be indispensable. The supervision work is mainly carried out in the following three items:
l, select excellent manufacturers in the selection of steel component manufacturers, mainly to assess the following items
1 enterprise qualification level;
2 business management model;
3 enterprise processing capacity, including the following:
a, the advanced level of processing equipment;
b. The situation of enterprise technical management personnel and skilled workers;
c. The performance of the enterprise completing the same type of engineering processing tasks;
d, the company's deepening design capabilities;
e. The annual processing capacity of the enterprise (tons), the ratio of the processing capacity of the project to the annual processing capacity. 4 If the distance between the manufacturer and the construction site is far away, the problem of temporary stacking materials for transportation should be considered.
2. Formulating an effective and feasible supervision plan For the supervision and construction work, the supervision plan is equivalent to the supervision plan of the project, and is a programmatic document with guiding intentions. In the supervision plan, the following should be mainly Aspects of content supervision: bidding documents, processing contracts, design documents, relevant technical standards, specifications, etc. Scope and content of supervision: It should include the whole process of manufacturing, pre-assembly, packaging and transportation of components. Supervision objectives: Decompose and implement quality, schedule and cost control objectives. Supervision procedures and measures: should include the supervision program block diagram, pre-, in-, and post-control of the supervision process. The key points for the supervision work of the supervision work should be determined by the following items: Qualification review of relevant personnel. Inspection of the main processing equipment. Inspection of processing process assurance measures. Side station supervision of welding process evaluation. Ultrasonic non-destructive testing of full penetration first and second welding. Detection of stud welding. Detection of high-strength bolts. Monitoring of the assembly of some components at the factory top.
The above contents are compiled according to the problems encountered by the students in the actual work, for reference, if there is any problem, please communicate and correct in time.
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