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Steel structure fire resistance design method based on ESSFF

A technology of expert system and design method, applied in computing, special data processing applications, instruments, etc., can solve problems such as the lack of fire resistance design software, meet the requirements of fire resistance performance, strengthen and repair fire resistance performance, improve fire resistance The effect of fire performance

Inactive Publication Date: 2014-06-25
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the aspect of steel structure design, 3D3S space bar system steel structure CAD software, STS software, etc. have been developed in China, but there is a lack of software in fire resistance design

Method used

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  • Steel structure fire resistance design method based on ESSFF
  • Steel structure fire resistance design method based on ESSFF
  • Steel structure fire resistance design method based on ESSFF

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] This embodiment introduces in detail the fire resistance design of the steel structure before the fire.

[0057] designer according to image 3 To operate, input the type, distribution, and quantity of combustibles in the proposed building into the expert system. If there is no such combustible information in the expert system information database, it can be added to the expert system through human-computer interaction, so that the proposed building can be calculated. The total calorific value released by the combustion of combustibles in buildings; according to Figure 4 Carry out the operation, input the information such as the total calorific value released by the combustibles of the proposed building, the area of ​​the fire room, and the thermal inertia of the fire room into the expert system, and the fire load density in the proposed building can be calculated; according to Figure 5 To operate, input the fire load density in the proposed building and the opening ...

Embodiment 2

[0061] This embodiment introduces in detail the fire-resistant design of the steel structure after fire.

[0062] Figure 9 It is a flow chart of building structure treatment after fire; Figure 10 It is a flow chart of damage assessment of steel structure buildings after fire; Figure 11 The content of damage assessment of steel structure buildings after fire includes three parts: component identification, subunit identification and identification unit identification, and each part also needs to evaluate safety, usability and reliability; Figure 12 For the content and process of fire scene survey, according to Figure 12 Operation, you can understand the situation of the fire scene; according to Figure 13 After the fire site investigation is input into the expert system, the maximum temperature of the structure after the fire and the temperature field distribution of the structure after the fire can be obtained, and then the local damage and overall damage of the structu...

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Abstract

The invention discloses a steel structure fire resistance design method based on the ESSFF. The steel structure fire resistance design method based on the ESSFF comprises the steel structure fire resistance design before fire treatment and steel structure reinforcement and restoration design after fire treatment. The steel structure fire resistance design before fire treatment comprises the specific steps that an in-situ temperature field when a fire occurs is determined through the ESSFF, the elevated temperature of a steel structural member is determined through calculation when the fire occurs, the yield strength and the elasticity modulus of the steel structure member under the high temperature condition are calculated, and the fire resistance design of the steel structure member is conducted. Compared with the prior art, the steel structure fire resistance design method based on the ESSFF has the advantages that the ESSFF is adopted to serve as a design tool, the steel structure member is designed according to the influence of the temperature field on a fire site on the steel structure member, and the requirement of the steel structure member for fire resistance is met; meanwhile, by the adoption of the method, reinforcement and recovery of the fire resistance of the steel structure member can be achieved after the fire, and the fire resistance of the steel structure is improved.

Description

technical field [0001] The invention belongs to the field of fire-resistant design of steel structure buildings, and relates to a fire-resistant design method of steel structures based on an expert system. Background technique [0002] With the rapid development of computer technology, various fields are using computer languages ​​(Visual C++﹑Visual Basic, etc.) to write programs to solve corresponding complex problems. At present, domestically developed 3D3S space bar system steel structure CAD software, STS software, etc. in the aspect of steel structure design, but there is a lack of software in fire resistance design. The invention uses the developed steel structure fire-resistant design expert system (ESSFF) software as a tool to provide quantitative basis for the steel structure fire-resistant design, so that the steel structure fire-resistant design is more standardized and rationalized. Contents of the invention [0003] Purpose of the invention: The technical pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 范圣刚舒赣平桂鹤阳丁智霞刘飞
Owner SOUTHEAST UNIV
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