[1] Huang Qiao, Lin Yangzi, Ren Yuan, et al. Comprehensive evaluation method for superstructuresof prestressed concrete girder bridges [J]. Journal of Southeast University (English Edition), 2008, 24 (1): 64-68. [doi:10.3969/j.issn.1003-7985.2008.01.015]
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Comprehensive evaluation method for superstructuresof prestressed concrete girder bridges(
)
预应力混凝土梁桥上部结构综合评价方法
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 24
- Issue:
- 2008 1
- Page:
- 64-68
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2008-03-30
Info
- Title:
- Comprehensive evaluation method for superstructuresof prestressed concrete girder bridges
- 预应力混凝土梁桥上部结构综合评价方法
- Author(s):
- Huang Qiao1, 2, Lin Yangzi1, Ren Yuan1
-
1Institute of Bridge Engineering, Harbin Institute of Technology, Harbin 150090, China
2Institute of Bridge and Tunnel Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- bridge engineering; comprehensive evaluation; analytic hierarchy process(AHP)method; relative degree; weight modification
- PACS:
- U447
- DOI:
- 10.3969/j.issn.1003-7985.2008.01.015
- Abstract:
- A multi-level evaluation model for the superstructure of a damaged prestressed concrete girder or beam bridge is established, and the evaluation indices of the model as well as the rating standards are defined.A normal relative function about the evaluation indices of each element is developed to calculate the relative degree, and for each element there are no sub-level elements.When evaluating the elements in the sub-item level or the index level of the model, the weights of elements pertain to one adopted element, taking into account their degrees of deterioration.Since the relative degrees and structure evaluation scales on the damage conditions are applied to characterize the superstructure of damaged prestressed concrete girder bridges, this method can evaluate the prestressed structure in detail, and the evaluation results agree with the Code for Maintenance of Highway Bridges and Culvers(JTG H11—2004).Finally, a bridge in Jilin province is taken as an example, using the method developed to evaluate its damage conditions, which gives an effective way for bridge engineering.
- 建立针对缺损预应力混凝土梁桥上部结构的多层次评估模型, 提出模型中各项评价指标并初步确定其分级标准.构造正态关联函数计算确定无下属层元素评价指标与相应各评价等级的关联度, 并在对模型中分项层及指标层元素进行评价时, 考虑同下属于某元素的各元素的缺损状态进行权重修正计算.采用关联度及结构评定标度共同表征预应力混凝土梁桥上部结构的缺损状态, 故该方法可针对预应力结构进行细致的评价, 并且结果与现行《公路桥涵养护规范》的评价方法相统一.最后, 对吉林省某一实际桥梁缺损状态进行了详细的评估, 可作为算例供工程参考.
References:
[1] Estes Allen C, Frangopol Dan M.Bridge lifetime system reliability under multiple limit states[J].Journal of Bridge Engineering, 2001, 6(6):523-528.
[2] Wang Youzhi.Reliability evaluation and reinforcement for bridges[M].Beijing:China WaterPower Press, 2002:160-195.(in Chinese)
[3] Zhang Xinzhan.Study on bridge management systems[D].Xi’an:Chang’an University, 2000.(in Chinese)
[4] JTG H11—2004 Code for maintenance of highway bridges and culvers[S].Beijing:China Communications Press, 2003.(in Chinese)
[5] Li Hongji.Basics of fuzzy math and its practicality applications[M].Beijing:Science Press, 2005:352-386.(in Chinese)
[6] Zhang Xinpei.Construction reliability analysis and design[M].Beijing:Science Press, 2001:69-95.(in Chinese)
[7] Zhang Jianren, Liu Yang, Xu Fuyou, et al.Structure reliability theory and its applications in bridge engineering[M].Beijing:China Communications Press, 2003:99-119.(in Chinese)
[8] Ren Baoshuang, Qian Jiaru, Nie Jiangou, et al.Synthesized evaluation method for existing simple supported beam type RC bridge structures[J].China Civil Engineering Journal, 2002, 35(2):97-102.(in Chinese)
Memo
- Memo:
-
Biography: Huang Qiao(1958—), male, doctor, professor, qhuanghit@126.com.
Foundation item: The Science and Technology Program for Western Communication Construction of Ministry of Communications(No.200538181215).
Citation: Huang Qiao, Lin Yangzi, Ren Yuan. Comprehensive evaluation method for superstructures of prestressed concrete girder bridges[J].Journal of Southeast University(English Edition), 2008, 24(1):64-68.