Necessity of steel structure inspection

1. Steel structure detection can reduce potential safety hazards

Factory buildings, greenhouses, exhibition halls, waiting halls, etc. are generally steel grid structures. If these steel structures have been in service for 10-20 years, their bearing capacity and stability are declining, and there are many potential safety hazards. Therefore, for the steel structure construction needs that have been used for a long time, the quality inspection of the steel structure can be carried out comprehensively to judge its overall performance, and the corresponding maintenance plan can be formulated according to the inspection results, which can effectively reduce the construction safety hazards.

2. Steel structure inspection can improve the performance of construction engineering

The construction of steel structures is generally complex, which is assembled by multiple steels through electric welding and other methods. There are also many problems that need attention and may occur. The steel structure inspection technology of these connection points can ensure the quality of raw materials, weld connection quality, etc., so as to ensure the performance of the construction project from the whole.

3. Steel structure inspection reduces construction period and improves economic benefits

Regular steel structure inspection can find and deal with problems in a timely manner. On the basis of timely loss stop, optimization suggestions for each link are proposed to minimize the project duration and improve economic benefits.

It is very necessary to strengthen the steel structure detection, which is not only conducive to promoting the benign development of China's construction industry, but also to achieve the optimization of all structures in the construction industry. Therefore, we must speed up the steel structure detection technology and its application, so as to better promote the overall development level of China's construction industry.

The on-site inspection of steel structure workshop should include the following work contents:

1. Collect the design drawings, construction records, construction acceptance, engineering geological investigation reports and other data of the tested steel structure plant construction.

2. According to the drawings provided by the entrusting party, investigate whether the structural layout and dimensions of the tested steel structure workshop are consistent with the drawings, and whether the use and load of the workshop are changed during the operation.

3. Check the structural status of the steel structure plant on the site. In this process, full inspection or random sampling inspection can be used. The inspection items include: structural appearance defect inspection, steel hardness inspection, component connection inspection, fireproof coating thickness inspection, anti-corrosion coating thickness inspection, structural component size deviation, structural component deformation inspection and plant foundation status survey.

The safety of industrial steel structure workshop is a problem that every manager needs to pay attention to, and the steel structure workshop should be inspected regularly.

In the process of application, if there are process transformation and structural transformation of the plant, it is necessary to determine the safety and earthquake resistance of the plant. After reviewing the structure and bearing capacity of the plant from the beginning, modeling and accounting, we can understand the safety of the main structure of the plant in detail, provide comprehensive and detailed data for the later plant transformation, and ensure the structural safety and the smooth progress of the later transformation.

When checking the cement structure of steel structure, the method of concrete utilization shall be understood and detailed judgment shall be made accordingly. In residential construction, concrete structures can be seen everywhere, with steel foundations. Concrete materials can be seen everywhere in steel structure walls and roof structures. The inspection of steel structure concrete construction should be carried out in the following ways:

1. Field mapping of structure and frame elevations. Draw the plane of the steel structure and the elevation of the frame.

2. Judgment of concrete structure composition proportion. Generally speaking, the ratio of reinforcement to concrete in the walls of buildings should be 1:2 or 1:2.5 to meet the residents' requirements for wall strength and durability. According to this requirement, the judge has a reasonable basis for determining the proportion of concrete structure components.

3. Determine the material condition of concrete column or beam. If the concrete structure inclines and cracks during the inspection of steel structure, such steel structure can be called dangerous house. Fourth, the bearing capacity of concrete structures. In residential structure, concrete structure does not exist independently, but combined with masonry and steel. Its existence mode can effectively control the service life of concrete structure. For the masonry structure judgment of steel structure, the judge needs to evaluate the seismic performance, anti tendency and wind resistance of masonry structure.