Evaluation of Security Grade of Fatigue Crack of Steel Box Girder

doi:10.3969/j.issn.1674-0696.2013.sup.1.11

Journal of Chongqing Jiaotong University(Natural Science) ›› 2013, Vol. 32 ›› Issue (增1): 772-775.DOI: 10.3969/j.issn.1674-0696.2013.sup.1.11

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Evaluation of Security Grade of Fatigue Crack of Steel Box Girder

Cheng Miao，Ji Bohai，Fu Zhongqiu，Shen Danwen，Zhu Wei

School of Civil Engineering ＆ Transportation，Hohai University，Nanjing 210098，Jiangsu，China

Received:2013-01-26 Revised:2013-03-26 Online:2013-06-30 Published:2015-03-12

钢箱梁疲劳裂纹安全性等级评价方法

程苗，吉伯海，傅中秋，沈丹雯，朱伟

河海大学土木与交通学院，江苏南京210098

作者简介:程苗(1987—)，男，安徽安庆人，硕士，主要从事桥梁维护与管理方面的研究。E-mail:super.yzzy@gmail.com.
基金资助:
国家自然科学基金项目( 1278166) ; 高等学校博士学科点专项科研基金项目( 20120094110009) ; 江苏省交通科学研究计划项目 ( 2011Y09-1)

Abstract

Abstract: Ｒeferring to the existing evaluation methods，a fuzzy comprehensive evaluation method was applied in the evaluation of the security grade of the fatigue crack of steel box girder． According to the structural characteristics of the steel box girder，corresponding factors set and appraisal set were determined，and then mathematical model was established． Therefore， the weighting of each evaluation index is determined and corresponding evaluation standards were also classified． According to the proposed standard，the evaluation of the security grade of fatigue crack of steel box girder can be performed．

Key words: steel box girder, fatigue crack, fuzzy comprehensive evaluation

摘要： 参考现有评价方法，将模糊综合评价法应用在钢箱梁疲劳裂纹安全性等级评价上。根据钢箱梁的结构特点，确定相应的因素集和评价集，建立数学模型，确定各评价指标的权重，并划分了相应的评价等级标准。根据此标准可对钢箱梁疲劳裂纹的安全性等级作出评价。

关键词: 钢箱梁, 疲劳裂纹, 模糊综合评价

CLC Number:

U446.2

Cheng Miao，Ji Bohai，Fu Zhongqiu，Shen Danwen，Zhu Wei. Evaluation of Security Grade of Fatigue Crack of Steel Box Girder[J]. Journal of Chongqing Jiaotong University(Natural Science), 2013, 32(增1): 772-775.

程苗，吉伯海，傅中秋，沈丹雯，朱伟. 钢箱梁疲劳裂纹安全性等级评价方法[J]. 重庆交通大学学报（自然科学版）, 2013, 32(增1): 772-775.

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Evaluation of Security Grade of Fatigue Crack of Steel Box Girder

钢箱梁疲劳裂纹安全性等级评价方法

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