Assessment method and system for building damage after fire

Abstract

The invention provides an assessment method for building damage after fire, and the assessment method for the building damage after the fire includes the following steps: 1. collecting data of a scene of the fire, 2. modeling the scene of the fire according to the data of the scene of the fire and carrying out fire simulation in the scene of the fire for achieving fire simulation results, 3. analyzing the fire simulation results, 4. establishing a finite element model, and adding second data to the finite element model for finite element analysis so as to obtain finite element analysis results, 5. carrying out safety assessment for the finite element results. Provided is a corresponding system. The assessment method for the building damage after the fire can be widely used for the fire reappearance and the practice of the safety design of the building structure after the fire, not only can improve the accuracy and reliability of the reappearance of the building fire, but also can greatly save time and cost for the reappearance of the building fire and the safety design of the structure. Therefore, the assessment method for the building damage after the fire has an important theoretical guiding significance and a practical value.

Description

technical field [0001] The invention relates to a numerical simulation fire system, in particular to a numerical simulation damage assessment system after a fire, in particular to a post-fire building damage assessment method and system. Background technique [0002] In recent years, building fires have occurred frequently, not only causing significant loss of personnel and property, but also causing major damage to building structures, and even collapse. If there is no safety assessment of the accident building after the fire, it will not be sure whether it can continue to be used. If it is directly rebuilt or demolished, it will waste a lot of manpower and financial resources. Therefore, the damage assessment of the building after the fire is becoming more and more important. [0003] Fire simulation software has become more and more mature. It can detect the reproduction of the entire fire process and the change of gas volume in the fire process, but there are still many ...

AI Technical Summary

Problems solved by technology

[0004] First, it is impossible to make a judgment on the internal stress change of the building structure

[0005] Second, it is impossible to make a judgment on the microscopic deformation of the building

[0007] First, it may cause secondary physical damage to the building structure

[0008] Second, it is impossible to make a relatively accurate assessment of the overall building structure performance

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