基于可靠性分析的桥梁结构变形检测方法研究
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摘要
针对普通桥梁结构变形检测方法执行效率低下、测量精度有限等问题,设计基于可靠性分析的新型桥梁结构变形检测方法。首先通过确定形变极值响应面的方式,计算可靠性遗传算子,完成桥梁形变量的可靠性分析。然后利用上述分析结果,在一定条件下,对遗传算子进行训练优化,定义桥梁结构的基本形变检测参数,再通过选择合适检测处理软件的方式,对所有执行数据进行规范整理,完成基于可靠性分析桥梁结构变形检测方法的搭建。最后模拟桥梁结构形变状态设计对比实验,结果表明与变形检测方法相比,应用基于可靠性分析的桥梁结构变形检测方法后,测量精度最大值提升至87%以上,有效缓解执行效率低下情况。
Aiming at the problems of inefficient execution and limited measurement accuracy of common bridge structure deformation detection methods,a new bridge structure deformation detection method based on reliability analysis is designed.Firstly, the reliability genetic operator is calculated by determining the response surface of deformation extremum,and the reliability analysis of bridge deformation is completed.Then using the above analysis results,under certain conditions,the genetic operator is trained and optimized to define the basic deformation detection parameters of the bridge structure,and then through the selection of appropriate detection processing software,all the execution data are standardized and sorted out to complete the bridge structure deformation detection method based on reliability analysis.Finally,the comparative experiment of the deformation state design of the bridge structure is simulated.The results show that compared with the deformation detection method,the maximum measurement accuracy of the bridge structure deformation detection method based on reliability analysis is increased to more than 87%,and the inefficiency of the implementation is effectively alleviated.
Aiming at the problems of inefficient execution and limited measurement accuracy of common bridge structure deformation detection methods,a new bridge structure deformation detection method based on reliability analysis is designed.Firstly, the reliability genetic operator is calculated by determining the response surface of deformation extremum,and the reliability analysis of bridge deformation is completed.Then using the above analysis results,under certain conditions,the genetic operator is trained and optimized to define the basic deformation detection parameters of the bridge structure,and then through the selection of appropriate detection processing software,all the execution data are standardized and sorted out to complete the bridge structure deformation detection method based on reliability analysis.Finally,the comparative experiment of the deformation state design of the bridge structure is simulated.The results show that compared with the deformation detection method,the maximum measurement accuracy of the bridge structure deformation detection method based on reliability analysis is increased to more than 87%,and the inefficiency of the implementation is effectively alleviated.
引文
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[2]曹跃进,唐海洋,李文鹏.便携设备单片集成Boost型DC/DC转换器的分析与应用[J].电子设计工程,2017,25(23):143-146.
[3]何振鹏,谢海超,徐唐进,等.基于摩擦学和结构动力学的内燃机曲轴结构可靠性研究[J].润滑与密封,2017,42(10):35-42.
[4]赫中营,王根会,叶爱君,等.基于拟可积Hamilton系统的铁路桥梁动力可靠度计算研究[J].铁道学报,2016,38(5):110-116.
[5]徐健,周志祥,唐亮,等.基于谱系聚类分析的桥梁结构模态参数自动化识别方法研究[J].振动与冲击,2017,36(11):206-214.
[6]王浩,徐梓栋,陶天友,等.基于小波变换的苏通大桥非平稳抖振响应演变谱实测研究[J].工程力学,2016,33(9):164-170.
[7]向绿林,贺国京,沈晴晴,等.基于风险分析-可靠度混合法预制梁板运、架施工安全评估[J].铁道科学与工程学报,2016,13(9):1872-1878.
[8]胡锐光,何敏,陈成.基于不同规范的钢结构连续梁桥反应谱法分析[J].合肥工业大学学报:自然科学版,2016,39(9):1231-1234.
[9]孙瑄,张建国,王丕东,等.基于广义退化的机械结构模糊时变可靠性分析[J].北京航空航天大学学报,2016,42(8):1731-1738.
[10]卢剑伟,王馨梓,吴唯唯,等.路面随机激励下轻型货车驱动桥壳疲劳可靠性分析[J].汽车工程,2016,38(1):122-126.
[11]潘传姣.基于NRTK技术的GNSS在桥梁结构变形监测中的应用研究[J].公路工程,2017,42(4):204-210.
[12]万华平,钟剑,任伟新.考虑替代模型不确定性的结构动力特性全局敏感性分析[J].应用数学和力学,2018,39(1):1-10.
[13]孙志礼,李瑞,闫玉涛,等.一种用于结构可靠性分析的Kriging学习函数[J].哈尔滨工业大学学报,2017,49(7):146-151.
[14]刘艳杰,张红,刘旭东.基于精确大地测量技术对公路桥梁结构变形监测研究[J].公路工程,2016,41(5):185-189.
[15]郭健,裘力奇,张新军,等.基于小波包分析的桥梁支座损伤识别试验研究[J].浙江工业大学学报,2016,44(6):695-698.
[16]李强,余峰,经薇.耦合振动对桥梁结构变形检测精度仿真[J].计算机仿真,2016,33(6):127-131.