Fuzzy synthetic appraisement method influenced by bridge life cycle surroundings

A fuzzy comprehensive evaluation and environmental impact technology, applied in the field of bridge engineering, can solve problems such as the cumbersome calculation process of consistency inspection, and achieve the effect of improving objectivity, convenient operation and comprehensive indicators.

Inactive Publication Date: 2009-02-18
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Described IAHP method is: improved Analytic Hierarchy Process, this method overcomes the shortcomings such as the uncertainty of ordering of importance in the traditional Analytic Hierarchy Process (AHP method), the complexity of consistency check and the cumbersome nature of the whole calculation process, With better intuitiveness and simplicity

Method used

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  • Fuzzy synthetic appraisement method influenced by bridge life cycle surroundings
  • Fuzzy synthetic appraisement method influenced by bridge life cycle surroundings
  • Fuzzy synthetic appraisement method influenced by bridge life cycle surroundings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Example 1: Life cycle environmental impact assessment of Mohu Bridge in Wuhan

[0060] (1) Evaluation factor weight calculation

[0061] Using the method described above, the weight of the environmental impact index of the Mohu Bridge is obtained:

[0062] W 11 =(1.0)W 21 =(0.38,0.62)W 22 =(0.25, 0.25, 0.29, 0.21)W 23 =(1.0)

[0063] W 31 =(0.14, 0.12, 0.18, 0.10, 0.19, 0.17, 0.06, 0.04)

[0064] W 32 =(0.10, 0.17, 0.10, 0.13, 0.10, 0.06, 0.15, 0.19)

[0065] W 33 =(0.15, 0.17, 0.12, 0.13, 0.15, 0.17, 0.11)

[0066] W 34 =(0.15, 0.13, 0.18, 0.25, 0.24, 0.05)W 35 =(0.43, 0.31, 0.26)W 36 =(0.75, 0.25)

[0067] W 41 =(0.63,0.37)W 42 =(0.59,0.41)W 43 =(0.23, 0.25, 0.29, 0.23)

[0068] W 44 =(0.23, 0.26, 0.33, 0.18)W 45 =(1.0)

[0069] W 51 =(0.36, 0.19, 0.45)W 52 =(0.21, 0.27, 0.21, 0.31)

[0070] W 53 =(0.15, 0.17, 0.12, 0.13, 0.15, 0.17, 0.11)W 54 =(0.15, 0.13, 0.18, 0.25, 0.24, 0.05)

[0071] W 55 =(1.0)W 56 =(0.75, 0.25)

[0072] W 1 =(1.0...

Embodiment 2

[0114] Example 2: Life Cycle Environmental Impact Assessment of South Taizi Lake Bridge in Wuhan

[0115] (1) Evaluation factor weight calculation

[0116] The method is used to obtain the weight of the environmental impact index of the South Taizi Lake Bridge:

[0117] W 11 =(1.0)W 21 =(0.38,0.62)W 22 =(0.25, 0.25, 0.29, 0.21)W 23 =(1.0)

[0118] W 31 =(0.14, 0.12, 0.18, 0.10, 0.19, 0.17, 0.06, 0.04)

[0119] W 32 =(0.10, 0.17, 0.10, 0.13, 0.10, 0.06, 0.15, 0.19)

[0120] W 33 =(0.15, 0.17, 0.12, 0.13, 0.15, 0.17, 0.11)

[0121] W 34=(0.15, 0.13, 0.18, 0.25, 0.24, 0.05)W 35 =(0.43, 0.31, 0.26)W 36 =(0.75, 0.25)

[0122] W 41 =(0.63,0.37)W 42 =(0.59,0.41)W 43 =(0.23, 0.25, 0.29, 0.23)

[0123] W 44 =(0.23, 0.26, 0.33, 0.18)W 45 =(1.0)

[0124] W 51 =(0.36, 0.19, 0.45)W 52 =(0.21, 0.27, 0.21, 0.31)

[0125] W 53 =(0.15, 0.17, 0.12, 0.13, 0.15, 0.17, 0.11)W 54 =(0.15, 0.13, 0.18, 0.25, 0.24, 0.05)

[0126] W 55 =(1.0)W 56 =(0.75, 0.25)

[0127] W 1...

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Abstract

The invention relates to a fuzzy comprehensive assessment method of bridge life cycle environmental influence, comprising: using life cycle assessment technology provided by ISO14040 as basis, introducing fuzzy assessment theory in the environmental influence assessment, quantizing environmental influence index, determining index weight through analytic hierarchy process, and obtaining latent value of the environmental influence through the fuzzy comprehensive assessment. The bridge life cycle includes a designing phase, a raw material phase, a construction phase, a running and maintaining phase and a discarding phase. The invention is characterized by overall index, current assessment, convenient operation, small subjective effect and the like and wide application foreground.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and specifically relates to a fuzzy comprehensive evaluation method mainly used for objectively, quantitatively and comprehensively analyzing the environmental influences of various bridge life cycles. Background technique [0002] In recent years, a large number of bridges have been built in my country, which has also brought about a series of environmental problems. Among them, bridges across rivers and lakes have a particularly prominent impact on the environment during their life cycle, including water pollution, ecological deterioration, and air quality decline. The traditional environmental impact assessment is mainly aimed at the ecological system, regional planning and road construction, etc., but the research on the environmental impact assessment of the bridge life cycle is still in the exploratory stage, and the relatively lagging development of the environmental impact assessment meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N7/02
Inventor 刘沐宇高宏伟卢志芳赵志斌林驰
Owner WUHAN UNIV OF TECH
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