«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

41卷

期数:

2024年02期

页码:

85-95

栏目:

桥隧工程

出版日期:

2024-03-30

文章信息/Info

Title:

Calculation methods for boundary conditions of relative humidity on steel bridge surface

文章编号:

1673-2049(2024)02-0085-11

作者:

陈 莎¹,刘永健^1,2,3,王 壮¹,郝新跃¹

(1. 长安大学 公路学院,陕西 西安 710064; 2. 长安大学 公路大型结构安全教育部工程中心,陕西 西安 710064; 3. 重庆大学 土木工程学院,重庆 400044)

Author(s):

CHEN Sha¹, LIU Yongjian^1,2,3, WANG Zhuang¹, HAO Xinyue¹

(1.School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Research Center of Highway Large Structure Engineering on Safety of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 3.School of Civil Engineering, Chongqing University, Chongqing 400044, China)

关键词:

桥梁工程;  相对湿度;  边界条件;  温度场;  腐蚀;  钢桥

Keywords:

bridge engineering;  relative humidity;  boundary condition;  temperature field;  corrosion;  steel bridge

分类号:

U448.36

DOI:

10.19815/j.jace.2024.03010

文献标志码:

A

摘要:

表面相对湿度是决定钢桥腐蚀速度的重要因素,精确计算表面相对湿度的关键在于选取合适的温度场边界条件,因此进行了拱肋模型相对湿度测试试验,利用有限元分析软件ABAQUS的DFLUX与UVARM子程序实现了钢桥表面相对湿度计算,并对比分析了不同太阳辐射、辐射换热及对流换热的计算方法对钢桥表面相对湿度模拟结果的影响。结果表明:太阳辐射强度对表面相对湿度的影响主要集中在日出、日落时段,采用Hottle模型计算的日总太阳辐射偏大,导致表面相对湿度偏低,建议使用实测太阳辐射数据计算太阳辐射热流密度; 天空及地面的辐射换热对表面相对湿度的影响不容忽视,利用简单的大气辐射换热替代天空、地面辐射换热,会导致结构吸收热量增加,表面相对湿度显著减小,建议在计算辐射换热热流密度时考虑天空温度、地面温度的影响; 白天对流换热对结构有降温作用,促使表面相对湿度升高,夜晚对流换热作用对结构有升温作用,促使表面相对湿度降低,目前对流换热系数计算方法多基于混凝土结构开展,后续可进行适用于计算钢桥表面相对湿度的对流换热系数研究。

Abstract:

The surface relative humidity is an important factor determining the corrosion rate of steel bridges,and the key to accurately calculate surface relative humidity is selecting appropriate boundary conditions of temperature field. Therefore, the relative humidity tests on the arch rib model was conducted, the finite element analysis software ABAQUS with the DFLUX and UVARM subroutines was used to calculate the surface relative humidity of the steel bridge. A comparative analysis was conducted on the effects of different solar radiation, radiative heat transfer, and convective heat transfer calculation methods on the surface relative humidity of the steel bridge. The results show that the influence of solar radiation intensity on surface relative humidity is mainly concentrated during sunrise and sunset periods. The daily total solar radiation tends to overestimate using the calculation method of Hottle model, leading to lower surface relative humidity. It is recommended to calculate the solar radiation heat flux density based on the measured solar radiation data. The effects of radiation heat transfer with sky and ground on the surface relative humidity should not be ignored. Substituting simple radiation heat transfer with atmospheric for radiation heat transfer with sky and ground will lead to an increase in heat absorption by the structure and a significant decrease in surface relative humidity. It is recommended to consider the effects of sky temperature and ground temperature when calculating the heat flux density of radiative heat transfer. During the day, convective heat transfer has a cooling effect on the structure, causing the surface relative humidity to increase. At night, convective heat transfer has a warming effect on the structure, causing the surface relative humidity to decrease. Currently, the studies on calculation methods of convective heat transfer coefficient are mostly based on concrete structures. It is suggested to conduct research on convective heat transfer coefficients suitable for calculating the surface relative humidity of steel bridges in the future.

参考文献/References:

[1] 侯保荣.中国腐蚀成本[M].北京:科学出版社,2017.
HOU Baorong.The cost of corrosion in China[M].Beijing:Science Press,2017.
[2]下里哲弘,有住康則,押川渡,等.鋼橋の腐食劣化メカニズムの解明と耐久性診断に関する研究[R].沖縄:琉球大学,2012.
TETSUHIRO S,YASUNORI A,KAWAWATARI O,et al.Elucidation of corrosion deterioration mechanism and durability diagnosis[R].Okinawa:University of the Ryukyus,2012.
[3]LICHTENSTEIN A G.The silver bridge collapse recounted[J].Journal of Performance of Constructed Facilities,1993,7(4):249-261.
[4]National Transportation Safety Board.Highway accident report collapse of a suspended span or interstate route 95 highway bridge over the Mianus River Greenwich[R].Washington:NTTS,1984.
[5]杉浦邦征.2021年10月に発生した六十谷水管橋崩落調査報告書[R].大阪:日本土木工学会関西支社,2021.
SUGIURA B.A Report on the collapse of the Roppongi river bridge in October 2021[R].Osaka:Kansai Branch of JSCE,2021.
[6]刘永健,陈 莎,王 壮.钢桥大气腐蚀微环境与长寿基因[J].建筑科学与工程学报,2023,40(5):1-19.
LIU Yongjian,CHEN Sha,WANG Zhuang.Atmospheric corrosion micro-environment and longevity genes of steel bridges[J].Journal of Architecture and Civil Engineering,2023,40(5):1-19.
[7]Corrosion of metals and alloys-corrosivity of atmospheres-classification,determination and estimation:ISO 9223:2012[S].Geneva:International Organization for Standardization,2012.
[8]LIAO J S,MATSUI S,KUSHIDA M,et al.Prevention of corrosion inside steel box girder of bridge[J].Doboku Gakkai Ronbunshu,2003,2003(749):137-148.
[9]VELEVA L,ALPUCHE-AVILES M A.Time of wetness(TOW)and surface temperature characteristics of corroded metals in humid tropical climate[M]//TOWNSEND H E.Outdoor Atmospheric Corrosion.West Conshohocken:ASTM International,2009:48-58.
[10]今井亮太,宮宗哲也,麻生稔彦.鋼鈑桁橋の結露評価に関する考察[J].構造工学論文集 A,2020,66A:443-451.
IMAI R,MIYASOU T,ASO T.An evaluation of dew condensation on steel plate girder bridges[J].Collected Papers on Structural Engineering A,2020,66A:443-451.
[11]立花周作,麻生稔彦.金属サンドイッチパネル製カバーによる防食法の腐食環境改善効果に関する検証[J].土木学会論文集A1(構造·地震工学),2020,76(3):456-466.
TACHIBANA S,ASO T.A study on the effect of cover anticorrosive technique to improve corrosion environment[J].Journal of Japan Society of Civil Engineers,Ser A1:Structural Engineering & Earthquake Engineering:SE,2020,76(3):456-466.
[12]王 壮,刘永健,唐志伟,等.基于日照阴影识别的桁式拱肋三维温度场模拟方法[J].中国公路学报,2022,35(12):91-105.
WANG Zhuang,LIU Yongjian,TANG Zhiwei,et al.Three-dimensional temperature field simulation method of truss arch rib based on sunshine shadow recognition[J].China Journal of Highway and Transport,2022,35(12):91-105.
[13]BAI Y X,LIU Y J,LIU J,et al.Temperature gradient of composite PK girder based on monitoring and long-term simulation[J].Structures,2023,57:105214.
[14]闫新凯,刘永健,刘 江,等.钢板组合梁温度作用的极值统计模型[J].东南大学学报(自然科学版),2022,52(5):856-865.
YAN Xinkai,LIU Yongjian,LIU Jiang,et al.Extreme value statistical model of temperature action of steel plate composite girder[J].Journal of Southeast University(Natural Science Edition),2022,52(5):856-865.
[15]彭友松.混凝土桥梁结构日照温度效应理论及应用研究[D].成都:西南交通大学,2007.
PENG Yousong.Studies on theory of solar radiation thermal effects on concrete bridges with application[D].Chengdu:Southwest Jiaotong University,2007.
[16]张 宁,刘永健,刘 江,等.高原高寒地区H形混凝土桥塔日照温度效应[J].交通运输工程学报,2017,17(4):66-77.
ZHANG Ning,LIU Yongjian,LIU Jiang,et al.Temperature effects of H-shaped concrete pylon in arctic-alpine plateau region[J].Journal of Traffic and Transportation Engineering,2017,17(4):66-77.
[17]赵人达,王永宝.日照作用下混凝土箱梁温度场边界条件研究[J].中国公路学报,2016,29(7):52-61.
ZHAO Renda,WANG Yongbao.Studies on temperature field boundary conditions for concrete box-girder bridges under solar radiation[J].China Journal of Highway and Transport,2016,29(7):52-61.
[18]GOFF J A,GRATCH S.Low-pressure properties of water from -160 to 212℉[J].Transactions of the American Society of Heating and Ventilating Engineers,1946,52:95-121.
[19]HOTTEL H C.A simple model for estimating the transmittance of direct solar radiation through clear atmospheres[J].Solar Energy,1976,18(2):129-134.
[20]LIU B Y H,JORDAN R C.The interrelationship and characteristic distribution of direct,diffuse and total solar radiation[J].Solar Energy,1960,4(3):1-19.
[21]COLLARES-PEREIRA M,RABL A.The average distribution of solar radiation-correlations between diffuse and hemispherical and between daily and hourly insolation values[J].Solar Energy,1979,22(2):155-164.
[22]SRIDHAR V,ELLIOTT R L.On the development of a simple downwelling longwave radiation scheme[J].Agricultural and Forest Meteorology,2002,112(3/4):237-243.
[23]GREVE A,BREMER M.Measured thermal behaviour of radio telescopes[M]//GREVE A,BREMER M.Thermal Design and Thermal Behaviour of Radio Telescopes and Their Enclosures.Berlin:Springer,2010:173-261.
[24]ALDUCHOV O A,ESKRIDGE R E.Improved Magnus form approximation of saturation vapor pressure[J].Journal of Applied Meteorology,1996,35(4):601-609.
[25]ELBADRY M M,GHALI A.Nonlinear temperature distribution and its effects on bridges[J].Structural Engineering International,1983,3:169-191.
[26]BRANCO F A,MENDES P A.Thermal actions for concrete bridge design[J].Journal of Structural Engineering,1993,119(8):2313-2331.
[27]LARSSON O,THELANDERSSON S.Estimating extreme values of thermal gradients in concrete structures[J].Materials and Structures,2011,44(8):1491-1500.
[28]SAETTA A,SCOTTA R,VITALIANI R.Stress analysis of concrete structures subjected to variable thermal loads[J].Journal of Structural Engineering,1995,121(3):446-457.
[29]LEE J H.Investigation of extreme environmental conditions and design thermal gradients during construction for prestressed concrete bridge girders[J].Journal of Bridge Engineering,2012,17(3):547-556.
[30]魏光坪.单室预应力混凝土箱梁温度场及温度应力研究[J].西南交通大学学报,1989,24(4):90-97.
WEI Guangping.Research for temperature fields and temperature stresses of prestressed concrete single-box girder bridge[J].Journal of Southwest Jiaotong University,1989,24(4):90-97.
[31]LIU H B,CHEN Z H,CHEN B B,et al.Studies on the temperature distribution of steel plates with different paints under solar radiation[J].Applied Thermal Engineering,2014,71(1):342-354.
[32]程从亮,李 萍.聚氨酯涂料红外发射率性能研究[J].激光与红外,2007,37(10):1067-1070.
CHENG Congliang,LI Ping.Study on infrared emittance property of polyurethane coatings[J].Laser & Infrared,2007,37(10):1067-1070.
[33]周林仁,李绍基,陈 兰.表面粗糙度对混凝土对流换热影响的试验研究[J].华南理工大学学报(自然科学版),2023,51(7):81-89.
ZHOU Linren,LI Shaoji,CHEN Lan.Experimental investigation into effect of surface roughness on convective heat transfer of concrete[J].Journal of South China University of Technology(Natural Science Edition),2023,51(7):81-89.

相似文献/References:

[1]刘荣桂,刘德鑫,延永东,等.CFRP筋复合型锚具锚固性能研究[J].建筑科学与工程学报,2013,30(02):9.
　LIU Rong-gui,LIU De-xin,YAN Yong-dong.[J].Journal of Architecture and Civil Engineering,2013,30(02):9.
[2].《建筑科学与工程学报》征稿简则[J].建筑科学与工程学报,2013,30(02):127.
[3]李加武,黄森华,王新.开口断面斜拉桥主梁动力特性的有限元简化计算[J].建筑科学与工程学报,2013,30(04):59.
　LI Jia-wu,HUANG Sen-hua,WANG Xin.Finite Element Simplified Computation for Dynamic Characteristics of Cable-stayed Bridge Girder with Opening Section[J].Journal of Architecture and Civil Engineering,2013,30(02):59.
[4]任 伟,盖轶婷,王 锦.混凝土自锚式悬索桥过程控制状态分析[J].建筑科学与工程学报,2014,31(03):45.
　REN Wei,GAI Yi-ting,WANG Jin.Analysis of Process Control State About Concrete Self�瞐nchored Suspension Bridge[J].Journal of Architecture and Civil Engineering,2014,31(02):45.
[5]李加武,周 琴,黄森华.简支梁桥铅芯橡胶支座减震特性研究[J].建筑科学与工程学报,2014,31(03):124.
　LIU Xin-hua,LI Jia-wu,ZHOU Qin,et al.Research on Seismic Isolation Characteristics of LRB for Simply Supported Beam Bridge[J].Journal of Architecture and Civil Engineering,2014,31(02):124.
[6]韦建刚,黄 蕾,李佩元,等.旧空心板简支梁桥的连续化改造加固研究[J].建筑科学与工程学报,2014,31(04):103.
　WEI Jian-gang,HUANG Lei,LI Pei-yuan,et al.Research on Continuous Transformation and Reinforcement for Old Simply Supported Hollow Slab Bridge[J].Journal of Architecture and Civil Engineering,2014,31(02):103.
[7]周 帅,曾永平,杨国静,等.桥梁箱型吊杆涡振与驰振耦合振动的数值模拟[J].建筑科学与工程学报,2015,32(02):84.
　ZHOU Shuai,ZENG Yong-ping,YANG Guo-jing,et al.Numerical Simulation on Coupled Vibration of Vortex-induced Vibration and Galloping Vibration for Box Hangers of Bridges[J].Journal of Architecture and Civil Engineering,2015,32(02):84.
[8]赵士良,韩万水,鲁永飞,等.重载交通条件下装配式RC板桥抗裂性分析[J].建筑科学与工程学报,2015,32(04):73.
　ZHAO Shi-liang,HAN Wan-shui,LU Yong-fei,et al.Crack Resistance Analysis on Prefabricated RC Slab Bridge Under Heavy Traffic[J].Journal of Architecture and Civil Engineering,2015,32(02):73.
[9]贡金鑫,江力财,赵尚传,等.桥梁拉吊索用不锈钢钢丝腐蚀性能及斜拉索时变可靠度研究[J].建筑科学与工程学报,2015,32(05):8.
　GONG Jin-xin,JIANG Li-cai,ZHAO Shang-chuan,et al.Study on Corrosion Properties of Stainless Steel Wire for Cable Use and Time-variant Reliability of Stay Cable of Bridge[J].Journal of Architecture and Civil Engineering,2015,32(02):8.
[10]李立峰,刘守苗,吴文朋.氯离子侵蚀效应对RC桥墩抗震性能的影响[J].建筑科学与工程学报,2015,32(05):56.
　LI Li-feng,LIU Shou-miao,WU Wen-peng.Influence of Chloride Ion Corrosion on Seismic Performance of Reinforced Concrete Piers[J].Journal of Architecture and Civil Engineering,2015,32(02):56.

备注/Memo

备注/Memo:

收稿日期:2024-03-04
基金项目:国家自然科学基金项目(51978061)

通信作者:刘永健(1966-),男,工学博士,教授,博士生导师,E-mail:liuyongjian@chd.edu.cn。

常用功能

更新日期/Last Update: 2024-03-25