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Method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm

A genetic algorithm and technical technology, applied in the field of bridge maintenance, can solve problems such as increased cost, service life of maintenance technology and different application conditions, and achieve good convergence, more scientific and objective decision-making results, and simple principles

Pending Publication Date: 2019-06-21
NORTHEASTERN UNIV
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Problems solved by technology

However, due to the different deterioration of the disease, the service life and application of the maintenance technology are also different. The maintenance technology selected by the decision-maker only based on the maintenance cost may fail due to multiple applications of the maintenance technology with poor comprehensive performance in the long-term maintenance process. increase cost

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  • Method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm
  • Method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm
  • Method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] The method for determining the optimal maintenance technology combination under multiple diseases provided by the present invention is aimed at expressway concrete bridges, which can comprehensively consider multiple attributes of maintenance technologies, and optimize the optimal maintenance technology combination for concrete bridges.

[0032] like figure 1 Shown, the detailed steps of the present invention are:

[0033] 1. Step 101: Determine the preferred indicators of the maintenance technology list;

[0034] According to the principle that the indicators are independent and unrelated to each other, the cost indicators, service life and applicable index are selected as the preferred indicators of the maintenance technology list of expressway concrete bridges under multi-disease conditions;

[0035] 2. Step 102: Carry out preliminary data process...

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Abstract

The invention belongs to the field of bridge maintenance, and particularly relates to a method for determining an optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm. According to the technical scheme, the method comprises the following steps that (1) determining maintenance technology list optimization indexes, wherein the maintenance technologylist optimization indexes comprise a cost index, a service life and an application index; (2) respectively carrying out data initial processing and normalization on the cost index, the adaptation index and the service life of the maintenance technology; (3) determining the weight value of each index by adopting a G1 method; (4) establishing a coefficient matrix of each index according to the normalized data; and (5) introducing a decision matrix, establishing a genetic algorithm multi-objective optimization model, and further determining an optimal maintenance technical list of the bridge under multiple diseases. The method for determining the optimal bridge maintenance technology combination under multiple diseases by using the genetic algorithm is wide in application range, simple in principle, convenient to use and good in reliability.

Description

technical field [0001] The invention belongs to the field of bridge maintenance, and in particular relates to a method for determining the optimal bridge maintenance technology combination under multiple diseases by using a genetic algorithm. Background technique [0002] With the development of the economy, China has built a large amount of infrastructure, and bridges, as the connection points of the transportation road network, have also been built in large numbers. By the end of 2017, China had built 832,500 road bridges with a total mileage of 52.2562 million meters. In the five years from 2013 to 2017, 97,200 new bridges were built in mainland China, and the newly added mileage reached 12.4782 million meters. At present, China is still focusing a lot of energy on building new bridges, but as time goes by, the number of new bridges will gradually decrease, and the number of bridges that need maintenance will gradually increase. Therefore, bridge maintenance plays an in...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/00G06N3/12
CPCY02A90/10
Inventor 齐锡晶唐梁康伟鑫廖若寒
Owner NORTHEASTERN UNIV
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