部分桥跨主梁病害严重的多跨梁桥技术状况评定方法探讨
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摘要
为了客观评定病害严重的多跨梁桥的技术状况,以总跨数为28跨的某枢纽匝道梁桥为工程背景,由于该桥构件数量多,局部桥跨存在严重病害,分别对全桥整体和病害严重桥跨组成的独立单元进行技术状况评定,并将两者进行对比分析。结果表明,独立单元评定结果与外观现状更相符,更客观和合理,其结果可与全桥整体评定结果相结合,对全桥安全状态进行评估。桥梁技术状况评定需采用全桥整体评定与局部桥跨独立单元评定相结合的方式,对全桥安全状态评估会更加合理可靠。
In order to objectively assess the technical status of the multi-span bridges with serious disease,the model of the whole bridge and the independent units composed of the bridge spans with serious diseases of a hub ramp beam bridge with 28 spans was evaluated and compared in terms of their technical status.There are a large number of components and some serious diseases in the local spans of this bridge. The results show that the evaluation results of independent units are more consistent with the appearance status,more objective and reasonable. Both of these two assessment results can be combined to assess the safety state of the whole bridge,which is more reasonable and reliable.
In order to objectively assess the technical status of the multi-span bridges with serious disease,the model of the whole bridge and the independent units composed of the bridge spans with serious diseases of a hub ramp beam bridge with 28 spans was evaluated and compared in terms of their technical status.There are a large number of components and some serious diseases in the local spans of this bridge. The results show that the evaluation results of independent units are more consistent with the appearance status,more objective and reasonable. Both of these two assessment results can be combined to assess the safety state of the whole bridge,which is more reasonable and reliable.
引文
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[2]赵铭伟.对现役桥梁技术状况三种评定方法的对比分析[J].水利与建筑工程学报,2016,14(2):207-211.ZHAO Mingwei. Comparative analysis of three assessment methods of active bridge technical condition[J]. Journal of Water Resources and Architectural Engineering,2016,14(2):207-211.
[3]申强.对公路桥梁技术状况评定的思考[J].中国公路,2017(10):31-33.SHEN Qiang. Reflections on the assessment of highway bridge technology status[J]. China Highway,2017(10):31-33.
[4]谢懿,季云峰,陈科桦.中外桥梁技术状况评估规范对比分析[J].中国市政工程,2016(z1):37-41.XIE Yi,JI Yunfeng,CHEN Kehua. Comparative analysis of evaluation specifications for Chinese and Foreign bridges[J]. China Municipal Engineering,2016(z1):37-41.
[5]王哲.基于模糊层次分析法的桥梁技术状况评估[J].交通科技,2016(5):68-71.WANG Zhe. Bridge technical condition evaluation based on fuzzy analytic hierarchy process method[J].Transportation Science&Technology,2016(5):68-71.
[6]李忠华,杨丽丽,崔永杰.《公路桥梁技术状况评定标准》应用存在问题及桥梁病害防治措施探讨[J].江西建材,2016(3):209.LI Zhonghua,YANG Lili,CUI Yongjie. Discussion on the problems existing in the application of"Technical Evaluation Standards for Highway Bridges"and prevention measures for bridge diseases[J]. Jiangxi Building Materials,2016(3):209.
[7]范宇丰.两个大跨径缆索承重桥梁技术状况评定规范(标准)的对比分析[J].公路交通技术,2016,32(6):71-76.FAN Yufeng. Comparative analysis of technical status assessment specification(standard)of two long-span cable-supported bridges[J]. Technology of Highway and Transport,2016,32(6):71-76.
[8]陈栋梁.桥梁技术状况评定方法比较研究[D].重庆:重庆交通大学,2013.CHEN Dongliang. Study on technical condition evaluation of bridges[D]. Chongqing:Chongqing Jiaotong University,2013.
[9]高志波.《公路桥梁技术状况评定标准》中构件评分方法探讨[J].四川理工学院学报(自然科学版),2013,26(1):64-66.GAO Zhibo. Discussion on component grading method in"Technical Evaluation Standards for Highway Bridges"[J]. Journal of Sichuan University of Science&Engineering(Natural Science Edition),2013,26(1):64-66.
[10]李宁.钢管混凝土拱桥技术状况评估体系中构件权重分析[J].公路交通技术,2017,33(2):55-58.LI Ning. Analysis of component weight in steel pipe concrete arch bridge technical condition evaluation system[J]. Technology of Highway and Transport,2017,33(2):55-58.
[11]梁鹏.桥梁技术状况评定方法、退化模型及巡检养护管理系统的集成与开发[D].西安:长安大学,2016.LIANG Peng. Integration and development of bridge technology status assessment method,degradation model and inspection maintenance management system[D]. Xi'an:Chang'an University,2016.
[12]张永强.《公路桥梁技术状况评定标准》应用中几个问题探讨[J].中外公路,2015,35(2):129-131.ZHANG Yongqiang. Discussion on several problems in the application of"Technical Evaluation Standards for Highway Bridges"[J]. Journal of China&Foreign Highway,2015,35(2):129-131.
[13]郭晓媛.加固后桥梁技术状况的评估方法研究[D].南宁:广西大学,2013.GUO Xiaoyuan. Research on evaluation method of bridge technology status after reinforcement[D]. Nanning:Guangxi University,2013.
[14]汪莲,左胜,邵亚会,等.公路桥梁技术状况评定标准技术问题研究[J].合肥工业大学学报(自然科学版),2015(11):1530-1535.WANG Lian,ZUO Sheng,SHAO Yahui,et al. Research on technical matters in standards for technical condition evaluation of highway bridges[J]. Journal of Hefei University of Technology(Natural Science Edition),2015(11):1530-1535.
[15]王刚,邹积坤.桥梁技术状况评定方法的合理性讨论与研究[J].市政技术,2016,34(3):82-85.WANG Gang,ZOU Jikun. Research and discussion on the rationality of evaluation method of bridge technical condition[J]. Municipal Engineering Technology,2016,34(3):82-85.