|Table of Contents|

Analysis of Vertical Temperature Gradient Effects of Concrete Girder Bridges with Different Cross Sections(PDF)

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

Issue:
2022年02期
Page:
97-110
Research Field:
桥梁工程
Publishing date:

Info

Title:
Analysis of Vertical Temperature Gradient Effects of Concrete Girder Bridges with Different Cross Sections
Author(s):
XING Zi-han1;  LIU Yong-jian1; 2;  YAN Xin-kai1;  WANG Xiao-long3;  LIU Jiang1
(1. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China; 2. Engineering Research Center for Large Highway Structure Safety of Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China; 3. CCCC Second Highway Engineering Co., Ltd, Xi'an 710065, Shaanxi, China)
Keywords:
bridge engineering;  concrete girder bridge;  temperature gradient;  temperature effect;  effect comparison;  span;  cross-section form;  structural system
PACS:
TU973.2
DOI:
10.19815/j.jace.2021.04090
Abstract:
In order to analyze the difference of vertical temperature gradient patterns of concrete girder bridge in different specifications and evaluate the influence degree of vertical temperature gradient effect on concrete girder bridge, the vertical temperature gradient patterns of concrete girder bridge in different national and industrial codes were summarized. The differences of the effect calculation results were discussed from the gradient curve form and the temperature base values. More than 20 concrete girder bridges with different structural systems, spans and cross sections were selected to calculate the effect under two typical vertical positive temperature gradients, including the deformation of the bridge and the stresses in the section. The temperature effects were compared with the effect induced by the self-weight and the vehicle loads. The results show that there are significant differences in the form of gradient curve and the base value of temperature in different vertical temperature gradient patterns, which equally influence the calculation results of temperature effect calculation results. The greater the influence depth of the top temperature difference is, the greater the deformation and secondary bending moment of the bridge, and the greater the self-equilibrium pressure stress is at the bottom edge of the section when the bottom heating part is considered. Different pavement types and climate conditions lead to different temperature base values in bridges, which may lead to a 1.5-2.0 times difference of temperature effects. For the middle and small span concrete girder bridges with same structural system and cross section, the proportions of self-weight effect increase, and the proportions of vehicle and temperature effect decrease with the increase of span, but the relative proportions of temperature and vehicle effects basically remain unchanged. The temperature effect proportions of T-girders are higher than that of hollow slab and small-box girder with the same structural system and span, which are 0.6%-16.5%. The temperature effect accounts for a large proportion of some effect types. The deformation of the girder and the stress on the top edge of the section in the middle and small span simple-supported concrete girder bridge caused by the temperature effect are equivalent to that of the self-weight and vehicle effect. The stresses on the top edge of the section in the middle and small span continuous girder bridge caused by temperature gradient can exceed that of the self-weight and vehicle effect, or even the sum of them, and the stress on the bottom edge of the section at the pier can be equivalent to that of the self-weight and vehicle effect. The temperature stresses on the top edge of the long-span continuous box girder bridge are several times bigger than that induced by vehicle effect. Considering the influences of pavement type and climate condition, the proportion of temperature effect may be higher in the bridge with larger temperature base value.

References:

[1] 刘永健,刘 江,张 宁.桥梁结构日照温度作用研究综述[J].土木工程学报,2019,52(5):59-78.
LIU Yong-jian,LIU Jiang,ZHANG Ning.Review on Solar Thermal Actions of Bridge Structures[J].China Civil Engineering Journal,2019,52(5):59-78.
[2]刘永健,刘 江.钢-混凝土组合梁桥温度作用与效应综述[J].交通运输工程学报,2020,20(1):42-59.
LIU Yong-jian,LIU Jiang.Review on Temperature Action and Effect of Steel-concrete Composite Girder Bridge[J].Journal of Traffic and Transportation Engineering,2020,20(1):42-59.
[3]LIU J,LIU Y J,YAN X K,et al.Statistical Investigation on the Temperature Actions of CFST Truss Based on Long-term Measurement[J].Journal of Bridge Engineering,2021,26(8):04021045.
[4]ELBADRY M,GHALI A.Thermal Stresses and Cracking of Concrete Bridges[J].Journal of the American Concrete Institute,1986,83(6):1001-1009.
[5]LEE J H.Behavior of Precast Prestressed Concrete Bridge Girders Involving Thermal Effects and Initial Imperfections During Construction[J].Engineering Structures,2012,42:1-8.
[6]韩 石,刘永健,王振华,等.高寒地区组合梁斜拉桥施工阶段温度效应研究[J].建筑科学与工程学报,2021,38(5):107-117.
HAN Shi,LIU Yong-jian,WANG Zhen-hua,et al.Study on Temperature Effect of Composite Girder Cable-stayed Bridge During Construction in Alpine Region[J].Journal of Architecture and Civil Engineering,2021,38(5):107-117.
[7]PRIESTLEY M J N.Design of Concrete Bridges for Temperature Gradients[J].Journal of the American Concrete Institute,1978,75(5):209-217.
[8]Bridge Manual.Section 3:Design Loading:SM061[S].Wellingtion:Transit New Zealand,2003.
[9]刘 江,刘永健,白永新,等.混凝土箱梁温度梯度模式的地域差异性及分区研究[J].中国公路学报,2020,33(3):73-84.
LIU Jiang,LIU Yong-jian,BAI Yong-xin,et al.Regional Variation and Zoning of Temperature Gradient Pattern of Concrete Box Girder[J].China Journal of Highway and Transport,2020,33(3):73-84.
[10]AASHTO LRFD Bridge Design Specification[S].Washington:AASHTO,2012.
[11]IMSEN R A,VANDERSHAF D E,SCHAMBER R A,et al.Thermal Effects in Concrete Bridge Super Structures[R].Washington DC:American Association of State Highway and Transportation Officials,1985.
[12]公路桥涵设计通用规范:JTG D60—2015[S].北京:人民交通出版社,2015.
General Specifications for Design of Highway Bridges and Culverts:JTG D60—2015[S].Beijing:China Communications Press,2015.
[13]Eurocode 1:Actions on Structures — Part1-5:General Actions — Thermal Actions:EN 1991-1-5[S].Brussels:European Committee for Standardization,2003.
[14]Steel,Concrete and Composite Bridges — Part 2:Specification for Loads:BS5400-2(1978)[S].London:British Standards Institution,1978.
[15]刘兴法.混凝土结构的温度应力分析[M].北京:人民交通出版社,1991.
LIU Xing-fa.Analysis of Thermal Stress in Concrete Structure[M].Beijing:China Communications Press,1991.
[16]铁路桥涵混凝土结构设计规范:TB 10092—2017[S].北京:中国铁道出版社,2017.
Code for Design of Concrete Structures of Railway Bridge and Culvert:TB 10092—2017[S].Beijing:China Railway Publishing House,2017.
[17]曾庆响,韩大建,马海涛,等.预应力混凝土箱梁桥的温度效应分析[J].中南大学学报(自然科学版),2010,41(6):2360-2366.
ZENG Qing-xiang,HAN Da-jian,MA Hai-tao,et al.Analysis of Temperature Effects on Prestressed Concrete Box Girder Bridges[J].Journal of Central South University(Science and Technology),2010,41(6):2360-2366.
[18]薛 刚,孟煜童,白纬宇.大跨度混凝土连续箱梁桥运营阶段的温度场分析[J].工程力学,2017,34(增):116-121.
XUE Gang,MENG Yu-tong,BAI Wei-yu.Temperature Field Analysis of Large-span Concrete Continuous Box-girder Bridge in Operation Stage[J].Engineering Mechanics,2017,34(S):116-121.
[19]卫俊岭,王 浩,茅建校,等.混凝土连续箱梁桥温度场数值模拟及实测验证[J].东南大学学报(自然科学版),2021,51(3):378-383.
WEI Jun-ling,WANG Hao,MAO Jian-xiao,et al.Numerical Simulation and Test Verification for Temperature Field of Concrete Continuous Box Girder Bridges[J].Journal of Southeast University(Natural Science Edition),2021,51(3):378-383.
[20]雷 笑,叶见曙,王 毅.日照作用下混凝土箱梁的温差代表值[J].东南大学学报(自然科学版),2008,38(6):1105-1109.
LEI Xiao,YE Jian-shu,WANG Yi.Representative Value of Solar Thermal Difference Effect on PC Box-girder[J].Journal of Southeast University(Natural Science Edition),2008,38(6):1105-1109.
[21]陶 翀,谢 旭,申永刚,等.基于概率分析的混凝土箱梁温度梯度模式[J].浙江大学学报(工学版),2014,48(8):1353-1361.
TAO Chong,XIE Xu,SHEN Yong-gang,et al.Study on Temperature Gradient of Concrete Box Girder Based on Probability Analysis[J].Journal of Zhejiang University(Engineering Science),2014,48(8):1353-1361.
[22]ABID S R,TAYSI N,OZAKCA M.Experimental Analysis of Temperature Gradients in Concrete Box-girders[J].Construction and Building Materials,2016,106:523-532.
[23]SONG X M,MELHEM H,LI J,et al.Effects of Solar Temperature Gradient on Long-span Concrete Box Girder During Cantilever Construction[J].Journal of Bridge Engineering,2016,21(3):04015061.
[24]GU B,ZHOU F Y,GAO W,et al.Temperature Gradient and Its Effect on Long-span Prestressed Concrete Box Girder Bridge[J].Advances in Civil Engineering,2020,2020(9):1-18.
[25]HAN Q H,MA Q,XU J,et al.Structural Health Monitoring Research Under Varying Temperature Condition:A Review[J].Journal of Civil Structural Health Monitoring,2021,11(1):149-173.
[26]吴海军,何 立,韦 跃.预应力混凝土梁桥挠度监测的温度效应分离方法[J].重庆交通大学学报(自然科学版),2020,39(8):66-71,83.
WU Hai-jun,HE Li,WEI Yue.Temperature Effect Separation Method of Deflection Monitoring of Prestressed Concrete Girder Bridge[J].Journal of Chongqing Jiaotong University(Natural Science),2020,39(8):66-71,83.
[27]XU X,HUANG Q,REN Y,et al.Modeling and Separation of Thermal Effects from Cable-stayed Bridge Response[J].Journal of Bridge Engineering,2019,24(5):04019028.
[28]ZHOU Y,XIA Y,CHEN B,et al.Analytical Solution to Temperature-induced Deformation of Suspension Bridges[J].Mechanical Systems and Signal Processing,2020,139:106568.
[29]吴海军,袁光杰,屈浩然,等.常见中小跨混凝土梁桥的恒活载效应比例关系研究[J].重庆交通大学学报(自然科学版),2019,38(8):33-38.
WU Hai-jun,YUAN Guang-jie,QU Hao-ran,et al.Constant Live-load Effect Ratio of Common Small and Medium Span Concrete Beam Bridges[J].Journal of Chongqing Jiaotong University(Natural Science),2019,38(8):33-38.
[30]交通部专家委员会.公路桥梁通用图[M].北京:人民交通出版社,2008.
Expert Committee of the Ministry of Communication.General Map of Highway and Bridges[M].Beijing:China Communications Press,2008.
[31]王永宝,赵人达,张双洋.桥梁结构温度场测点布置方法[J].沈阳建筑大学学报(自然科学版),2016,32(2):271-278.
WANG Yong-bao,ZHAO Ren-da,ZHANG Shuang-yang.Research on Measuring Points Distribution in the Temperature Field of Bridge Structure[J].Journal of Shenyang Jianzhu University(Natural Science),2016,32(2):271-278.
[32]任 翔,黄平明,韩万水.混凝土薄壁箱形结构横向温度应力解析计算方法[J].中国公路学报,2012,25(1):76-82.
REN Xiang,HUANG Ping-ming,HAN Wan-shui.Transverse Temperature Stress Computation Method of Concrete Thin-wall Box-shape Structure[J].China Journal of Highway and Transport,2012,25(1):76-82.
[33]刘永健,刘 江,张 宁,等.钢-混凝土组合梁温度效应的解析解[J].交通运输工程学报,2017,17(4):9-19.
LIU Yong-jian,LIU Jiang,ZHANG Ning,et al.Analytical Solution of Temperature Effects of Steel-concrete Composite Girder[J].Journal of Traffic and Transportation Engineering,2017,17(4):9-19.

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Last Update: 2022-03-20