|Table of Contents|

Finite element simulation of inside-outside temperature gradient and thermal stress for abutment mass concrete(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2016年02期
Page:
18-26，36
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Finite element simulation of inside-outside temperature gradient and thermal stress for abutment mass concrete
Author(s):
SUN Zeng-zhi1;  TIAN Jun-zhuang1;  SHI Qiang2;  LIU Wei2;  CHEN Hua-xin1;  XU Qin-wu3;  ZHANG Ben1
1. School of Materials Science and Engineering, Chang’an University, Xi’an 710064, Shaanxi, China; 2. Ordos Wanli Bridge Group Co., Ltd., Ordos 017000, Inner Mongolia, China; 3. The Transtec Group, Austin 78731, Texas, USA
Keywords:
material engineering;  mass concrete;  temperature field;  thermal stress;  numerical analysis;  crack
PACS:
U443.2
DOI:
-
Abstract:
Aimed at the earlier temperature cracks of mass concrete during construction, a 3D finite element model of mass concrete was built based on the abutment of Laoshangou Highway Bridge in Inner Mongolia, and the effects of content of fly ash, pouring temperature, environmental temperature, and maintenance measure on central temperature, temperature difference between inside and outside, and surface tensile stress of abutment were analyzed. Simulation result shows that the surface tensile stress of concrete increases with the content decrease of fly ash, the decline increases when the content exceeds 30%, and the central temperature, the temperature difference between inside and outside, and the surface tensile stress decrease with the increasse of adding dosage of fly ash, so effective adding fly ash can reduce the hydration heat of concrete and prevent the occurrence of cracks due to the surface temperature difference. When the pouring temperature increases from 5 ℃ to 30 ℃, the highest central temperature of concrete increases from 40.3 ℃ to 58.1 ℃, the maximum temperature difference between inside and outside increases from 8.6 ℃ to 19.0 ℃, and the maximum tensile stress increases from 0.93 MPa to 1.66 MPa. The highest central temperature of concrete and the maximum temperature difference between inside and outside appear in advance, and the surface tensile stress increases linearly along with the increase of pouring temperature. The temperature difference between inside and outside and the surface tensile stress decrease with the increase of environmental temperature, and the relationship between the surface tensile stress and the environmental temperature is linear basically. The better curing condition is, the smaller the temperature difference between inside and outside is, the slower the increase speed of surface tensile stress is, the later the occurred time of maximum surface tensile stress is, which are beneficial to control the cracks. 1 tab, 31 figs, 23 refs.

References:

[1] 朱伯芳.混凝土坝温度控制与防止裂缝的现状与展望[J].水利学报,2006,37(12):1424-1432.ZHU Bo-fang. Current situation and prospect of temperature control and cracking prevention technology for concrete dam[J]. Journal of Hydraulic Engineering, 2006, 37(12): 1424-1432.(in Chinese)
[2] 俞亚南,张 巍,申永刚.大体积承台混凝土早期表面开裂控制措施[J].浙江大学学报:工学版,2010,44(8):1621-1628.YU Ya-nan, ZHANG Wei, SHEN Yong-gang. Control measures for preventing crack on the surface of mass concrete abutment in early stage[J]. Journal of Zhejiang University: Engineering Science, 2010, 44(8): 1621-1628.(in Chinese)
[3] LIN Feng, SONG Xiao-bin, GU Xiang-lin, et al. Cracking analysis of massive concrete walls with cracking control techniques[J]. Construction and Building Materials, 2012, 31: 12-21.
[4] YIKICI T A, CHEN Hung-liang. Use of maturity method to estimate compressive strength of mass concrete[J]. Construction and Building Materials, 2015, 95: 802-812.
[5] AMIN M N, KIM JS, LEE Y, et al. Simulation of the thermal stress in mass concrete using a thermal stressmeasuring device[J]. Cement and Concrete Research, 2009, 39(3): 154-164.
[6] CHU I, LEE Y, AMIN M N, et al. Application of a thermal stress device for the prediction of stresses due to hydration heat in mass concrete structure[J]. Construction and Building Materials, 2013, 45: 192-198.
[7] 罗超云,李志生, 周 立.嘉绍大桥承台超大体积混凝土无冷却水管温控技术研究[J].公路,2012(7):101-106.LUO Chao-yun, LI Zhi-sheng, ZHOU Li. Technical research on temperature control of mass concrete without cooling water pipe of Jiashao Bridge pile cap[J]. Highway, 2012(7): 101-106.(in Chinese)
[8] ZORDAN T, BRISEGHELLA B, LIU Tao. Finite element model updating of a tied-arch bridge using Douglas-Reid method and Rosenbrock optimization algorithm[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1(4): 280-292.
[9] LIU Xing-hong, ZHANG Chao, CHANG Xiao-lin, et al. Precise simulation analysis of the thermal field in mass concrete with a pipe water cooling system[J]. Applied Thermal Engineering, 2015, 78: 449-459.
[10] BRIFFAUT M, BENBOUDJEMA F, TORRENTI J M, et al. Numerical analysis of the thermal active restrained shrinkage ring test to study the early age behavior of massive concrete structures[J]. Engineering Structures, 2011, 33(4): 1390-1401.
[11] MATTHIEU B, FARID B, TORRENTI JM, et al. Analysis of semi-adiabatic tests for the prediction of early-age behavior of massive concrete structures[J]. Cement and Concrete Composites, 2012, 34(5): 634-641.
[12] HA J H, JUNG Y S, CHO Y G. Thermal crack control in mass concrete structure using an automated curing system[J]. Automation in Construction, 2014, 45: 16-24.
[13] 李潘武,曾宪哲,李博渊,等.浇筑温度对大体积混凝土温度应力的影响[J].长安大学学报:自然科学版,2011,31(5):68-71.LI Pan-wu, ZENG Xian-zhe, LI Bo-yuan, et al. Influence of placement temperature on mass concrete temperature stress[J]. Journal of Chang’an University: Natural Science Edition, 2011, 31(5): 68-71.(in Chinese)
[14] 李 涛,张洵安,高 娃.基于ANSYS的大体积混凝土温度应力的研究[J].混凝土,2010(12):43-46.LI Tao, ZHANG Xun-an, GAO Wa. Research on thermal stress of the mass concrete based on ANSYS[J]. Concrete, 2010(12): 43-46.(in Chinese)
[15] LI Yan, NIE Lei, WANG Bo. A numerical simulation of the temperature cracking propagation process when pouring mass concrete[J]. Automation in Construction, 2014, 37: 203-210.
[16] 苗胜军,丛启龙,任奋华,等.基于ANSYS的大体积混凝土的水化热模拟研究[J].四川建筑科学研究,2009,35(2):194-197.MIAO Sheng-jun, CONG Qi-long, REN Fen-hua, et al. Simulation study of massive concrete hydration heat based on ANSYS[J]. Sichuan Building Science, 2009, 35(2): 194-197.(in Chinese)
[17] KIM Y R, KHIL B S, JANG S J, et al. Effect of barium-based phase change material(PCM)to control the heat of hydration on the mechanical properties of mass concrete[J]. Thermochimica Acta, 2015, 613: 100-107.
[18] KLEMCZAK B A. Modeling thermal-shrinkage stresses in early age massive concrete structures-comparative study of basic models[J].Archives of Civil and Mechanical Engineering, 2014, 14(4): 721-733.
[19] 季日臣,夏修身,陈尧隆.承台大体积混凝土温度场计算与温控防裂措施[J].混凝土,2006(9):92-94.JI Ri-chen, XIA Xiu-shen, CHEN Yao-long. Temperature field calculation and preventing crack measure in massive concrete about pillar abutment[J]. Concrete, 2006(9): 92-94.(in Chinese)
[20] 袁广林,黄方意,沈 华,等. 大体积混凝土施工期的水化热温度场及温度应力研究[J].混凝土,2005(2):86-88.YUAN Guang-lin, HUANG Fang-yi, SHEN Hua, et al. Research on temperature field and thermal stress of hydration heat in massive concrete of construction period[J]. Concrete, 2005(2): 86-88.(in Chinese)
[21] 胡昌斌,孙增华,王丽娟.水泥混凝土路面早龄期温度场性状与控制方法[J].交通运输工程学报,2013,13(5):1-9.HU Chang-bin, SUN Zeng-hua, WANG Li-juan. Characteristic and control method of early-age temperature field for cement concrete pavement[J]. Journal of Traffic and Transportation Engineering, 2013, 13(5): 1-9.(in Chinese)
[22] 闫海华,李 东,周红兵,等.大型基础承台水化热分析与裂缝控制[J].工业建筑,2005,35(增):862-866,871.YAN Hai-hua, LI Dong, ZHOU Hong-bing, et al. Hydration heat analysis and crack control of large baseplate[J]. Industrial Construction, 2005, 35(S): 862-866, 871.(in Chinese)
[23] HONORIO T, BARY B, BENBOUDJEMA F. Evaluation of the contribution of boundary and initial conditions in the chemo-thermal analysis of a massive concrete structure[J]. Engineering Structures, 2014, 80: 173-188.

Memo

Memo:
-
Last Update: 2016-04-20