Whether modern or modern buildings and structures are in use, they not only need normal management and maintenance, but also need timely repairs after several years of normal use. Only in this way can it effectively complete the functions conferred by the original design and extend its service life. Of course, sometimes buildings will inevitably need to be reinforced and remodeled due to unreasonable design, improper use in later periods, changes in usage, or the development of the times. It is necessary to thoroughly analyze the safety, usability and durability of the original appearance, and then make a safe and feasible plan based on the obtained results.

An indispensable step in structural reliability appraisal is to test the structure, and the test results will become one of the key reference factors for reliability appraisal. At the same time, it can also play an important reference role when reviewing the structure. The inspection is mainly to understand the appearance of the structure or component to be inspected and make a basic judgment through the method of preliminary observation. Testing refers to understanding the physical, mechanical and chemical properties and geometric characteristics of structural components through instrumental measurement. Inspection and testing are linked together as testing, so testing and identification are relatively important. Without testing and identification, its repair, maintenance and reinforcement are blind, and in the end it will have a negative effect and affect the use of the building.

The detection has the following different classifications. According to sub-projects, it can be divided into foundation inspection, foundation inspection, beam inspection, column inspection, wall inspection, etc. According to different structural materials, it can be divided into masonry structure inspection, concrete structure inspection, steel structure inspection, wood structure inspection and so on. According to different structural purposes, it can be divided into civil building structure testing, industrial building structure testing, and bridge structure testing. The appraisal includes: according to the content of the appraisal project, it can be divided into the quality of the project, the impact of adjacent construction, the safety status of existing buildings/structures, the feasibility of building/structure reconstruction, the cause and impact of engineering accidents, and post-disaster appraisal.

Now, if you want to strengthen its buildings and structures and other construction projects, safety appraisal is the indispensable first project. Only when the safety appraisal is passed can the next step be taken. It can be said that the significance of structural identification is not limited to technical or economic aspects, and it will have a profound impact on social security and stability. It provides a design basis for maintenance, reinforcement or transformation, and at the same time, it also provides ideas for relevant staff to propose specific reinforcement and transformation design schemes. Structural appraisal can also reduce unnecessary costs and save time for owners and construction parties.

After the appraisal is completed, the reinforcement construction is carried out. Reinforcement is also the top priority of the project. The safety reinforcement of the building can effectively avoid the occurrence of disasters. In contrast, if the house continues to be used without identification and reinforcement, the life safety will be endangered by accidental natural or man-made factors, and the cost will be much higher. Reinforcement can prevent trouble before it happens, and it is better to take precautions than to make up for it. The economic benefits of reinforcement are very significant.

I also mentioned that the appraisal is divided into different classifications. The later reinforcement can be reinforced according to the results of the appraisal, so each step of the construction is closely linked.