大跨度悬索桥钢箱梁除湿系统湿源定位算法研究  

Research on moist source positioning algorithm of dehumidification system of steel box girder of long-span suspension bridge

作　　者：张啸晨 蒋振雄 杨玉冬 李洪涛[2] 阮静 ZHANG Xiaochen;JIANG Zhenxiong;YANG Yudong;LI Hongtao;RUAN Jing(CCCC Highway Planning and Design Consultants Co.,Ltd.,Beijing 100088,China)

机构地区：[1]中交公路规划设计院有限公司,北京100088 [2]江苏省交通工程建设局,江苏南京210004

出　　处：《工业安全与环保》2023年第S01期103-106,共4页Industrial Safety and Environmental Protection

摘　　要：提出一种大跨度悬索桥钢箱梁除湿系统的湿源定位算法,以求在确定湿源的位置后精准送风。该算法通过钢箱梁内部传感器测量的温湿度数据,建立并求解伴随场微分方程组,再利用马尔可夫链蒙特卡洛(MCMC)法采样的结果确定湿源的最大可能位置,并与算例中的湿源位置相比较,验证定位算法的准确性。结果表明,湿源定位算法求得的湿源位置与算例较为吻合,具有较高的实用性。This paper proposes an algorithm for locating the moist air source in the dehumidification system of a lar-ge-span suspension bridge's steel box girder,which aims to deliver air accurately after determining the location of the moist air source.Firstly,the algorithm utilizes temperature and humidity data measured by sensors inside the steel box girder to establish and solve a set of adjoint field differential equations.Secondly,the Markov Chain Monte Carlo(MCMC)method is used for sampling to determine the maximum possible location of the moist air source.Finally,the accuracy of the positioning algorithm is verified by comparing the result with the moist air source location in the calculation example.The research indicates that the moist air source location obtained by the algorithm agrees well with the example and has high practical value.

关 键 词：悬索桥 钢箱梁 除湿系统 伴随场 湿源定位 MCMC 

分 类 号：U448.25[建筑科学—桥梁与隧道工程] U445.7[交通运输工程—道路与铁道工程]