The Building Appraisal Technology Of Fire Door Manufacturers Is Becoming More And More Mature

Based on this theory, fire door manufacturers measure the structural reliability by probability, which is called structural reliability. To sum up, we have understood the concept of structural reliability and the requirements of structure, applicability and durability. Building inspection and appraisal, which we call building reliability appraisal, is a process of performance inspection, test and comprehensive analysis for the role of existing buildings, structural resistance and their relationship, so as to evaluate the actual reliability of their structures., Just like the Barbell Weight borne by weightlifters, the various loads borne by buildings are called action. The ability of building structures to resist external effects after completion is just like the strength of weightlifters themselves. We become structural resistance.

It is obvious that these two factors are independent of each other. The effect of the fire door manufacturer will not change due to the change of resistance, and vice versa. In addition, it is obvious that when the effect is greater than the resistance, it is not. When the effect is equal to the resistance, it is a limited state. When it is less than the resistance, the structure is. Therefore, the design and construction of the building is to ensure that the building is in a state, and the work to be done for reliability appraisal is to accurately find out the actual situation of action and structural resistance through investigation, detection, test and other means, and then comprehensively evaluate the relationship between the two through calculation analysis, empirical analysis and other means, Thus, the actual reliability of building structure refers to the classification of building appraisal methods. The development of building appraisal methods is also a long process, and the progress of building appraisal theory and technology must rely on the development of theories such as structural design, structural calculation, construction technology and testing methods. With the progress of social science and technology, civil engineering has been continuously improved, some traditional methods have been abandoned, and some more scientific and reasonable technologies continue to appear.

Especially in recent years, with the development and progress of various detection means, the house identification technology of fire door manufacturers is becoming more and more mature. Review the past and understand the current situation. At present, the common house appraisal methods in the industry include traditional experience method, special building appraisal method and practical appraisal method. In the past, the industry lacked certain appraisal specifications, and technicians had no standard requirements to follow. In addition, the lack of detection means also made technicians unable to accurately understand the structural conditions. Therefore, The appraisal can only be carried out based on the experience and theoretical knowledge of individuals or a few appraisers, relying on experienced technicians to carry out a small amount of on-site detection and necessary recalculation, and then give the evaluation results based on their personal knowledge and experience. Obviously, the appraisal conclusion of this method will have different consequences from person to person due to the level difference of appraisers, which is unreasonable. However, It should be pointed out that this method is still used in the case of sudden accidents in some buildings and the need to issue temporary appraisal conclusions as soon as possible due to the requirements of public opinion. However, in this case, the technicians who make appraisal conclusions often have a high theoretical level in the industry Very experienced technical experts. For example, a high-rise apartment on Jiaozhou Road, Yuyao Road, Shanghai caught fire due to illegal operation of unlicensed welders. People were killed and others injured in the fire.. After the accident, it is necessary to report the accident and the damage of the building structure as soon as possible