Regional lightning disaster risk evaluation method

Abstract

The invention provides a regional lightning disaster risk evaluation method. The method is characterized by comprising the following steps of: (a), determining regional lightning disaster risk evaluation index systems U; (b), making danger level standards V for each evaluation index system; (c), calculating the weight coefficient W of each index by quoting an analytic hierarchy process; (d), calculating the membership degree of each quantitative index by quoting a membership degree function; (e), performing fuzzy comprehensive evaluation and calculating a correlation matrix; and (f) determining a risk level and a risk source and proposing lightning protective measures. The method is wide in application range, and meets the lightning risk evaluation in different industries such as flammables and explosives, railways, large-scale bridges and travels, and different types of buildings (structures). Various types of regional lightning risks are subjected to qualitative and quantitative comprehensive analysis by adopting a reasonable hierarchical comprehensive analysis method, so that the problem that influencing factors at each level are difficult to quantify is effectively solved.

Description

technical field [0001] The present invention relates to an evaluation method, specifically a Regional Lightning Disaster Risk Assessment Method . Background technique [0002] First of all, the existing lightning disaster risk assessment methods, such as the assessment methods in IEC62305-2 (risk management), GB / T21714 and other standards, can basically only assess a single building, and are not suitable for multiple buildings in a large area. The lightning disaster risk assessment of buildings (structures) is mainly due to the wide application of computers, electronic products and network equipment. After a building (structure) is struck by lightning, the impact on its surrounding buildings (structures) becomes more The more obvious, therefore, the assessment of the lightning disaster risk in the project area is not simply the sum of the risks of each building (structure) as the lightning disaster risk of the entire project area. Secondly, the existing lightning disaster ...

AI Technical Summary

Problems solved by technology

[0002] First of all, the existing lightning disaster risk assessment methods, such as the assessment methods in IEC62305-2 (risk management), GB / T21714 and other standards, can basically only assess a single building, and are not suitable for multiple buildings in a large area. The lightning disaster risk assessment of buildings (structures) is mainly due to the wide application of computers, electronic products and network equipment. After a building (structure) is struck by lightning, the impact on its surrounding buildings (structures) becomes more The more obvious, therefore, the lightning disaster risk in a project area is not simply superimposed on the risk of each building (structure) as the lightning disaster risk of the entire project area

Secondly, the existing lightning disaster risk assessment method is based on the premise that the overall lightning protection design scheme of the assessment project must be provided, which cannot meet the needs of providing site selection planning and lightning protection design for the project; The lightning disaster risk assessment conclusion is single, and the lightning disaster risk assessment reports for different types of buildings (structures) are almost the same, which is not practical; and the source of the lightning disaster risk is not clear, and the operability is not strong

Images