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A bim-based earthquake damage evaluation method for sprinkler systems in buildings

A technology of sprinkler system and fire extinguishing system, which is applied in the field of earthquake damage evaluation of building sprinkler system based on BIM, and can solve problems such as no good solution

Active Publication Date: 2019-10-18
UNIV OF SCI & TECH BEIJING
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AI Technical Summary

Problems solved by technology

[0007] For the evaluation of the fire extinguishing performance of sprinkler systems, the existing research has not yet found a good solution

Method used

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  • A bim-based earthquake damage evaluation method for sprinkler systems in buildings
  • A bim-based earthquake damage evaluation method for sprinkler systems in buildings
  • A bim-based earthquake damage evaluation method for sprinkler systems in buildings

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Embodiment Construction

[0037] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

[0038] The invention provides a BIM-based seismic damage evaluation method for a building sprinkler fire extinguishing system.

[0039] figure 1 This is the flow chart of the realization of the BIM-based spray seismic damage evaluation method. like figure 1 As shown, the realization of this method mainly includes four parts: building and sprinkler system modeling, sprinkler component seismic damage assessment, sprinkler system performance evaluation, and secondary fire simulation. The specific implementation steps are as follows:

[0040] (1) Building and sprinkler system modeling:

[0041] In order to obtain the building and sprinkler models required for fire numerical simulation, the building and sprinkler models were firstly mo...

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Abstract

The invention provides a BIM-based building water spray suppression system earthquake damage evaluation method and belongs to the technical field of civil engineering disaster prevention and reduction. The method comprises the four parts of building and spray system modeling, spray component earthquake damage evaluation, spray system performance evaluation and secondary fire simulation, wherein first, a conversion method for a building and automatic water spray suppression system from a BIM to a fire numerical model is designed; second, a water spray suppression system component earthquake damage evaluation method based on a next-generation performance-based design standard FEMA P-58 and structure time-history analysis is proposed, and an evaluation method for fire-extinguishing performance of a spray system based on a tree structure is further proposed; and last, fire simulation under a damaged spray system and fire simulation under a normal spray system are performed in a fire numerical simulation platform FDS. Through the method, overall fire-extinguishing performance of the spray system after an earthquake can be given, influences of spray earthquake damage to a building fire are quantified, and an important evaluation tool is provided for enhancing prevention of a building earthquake secondary fire.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and mitigation in civil engineering, in particular to a BIM-based earthquake damage evaluation method for a sprinkler fire extinguishing system in buildings. Background technique [0002] After the building is hit by an earthquake, it is often accompanied by serious secondary fires, causing huge casualties and property losses. The automatic sprinkler system is an important means of building fire prevention. However, earthquakes will cause damage to the automatic sprinkler system in the building. Once a secondary fire occurs in the building, the damaged automatic sprinkler system may be difficult to prevent the development of the fire, resulting in serious consequences. , aggravating the disaster. In order to prevent the above-mentioned serious disaster of secondary fire caused by earthquake, it is necessary to simulate the spread of secondary fire under the earthquake damage of automa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 许镇张宗才袁静雨
Owner UNIV OF SCI & TECH BEIJING
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