基于等效龄期的超长混凝土结构温度场模拟分析与监测

作者：唐国旺¹,李建华¹,骆杰¹,邓强¹,赵中军¹,贾向阳¹,袁荟凯²

作者简介：

唐国旺,高级工程师,E⁃mail: 3002180015@ email. cugb.edu. cn

作者单位：

1. 北京城建集团有限责任公司,北京 100088; 2. 清华大学,北京 100084

基金项目：

∗国家自然科学基金 (52308316)

摘要：

以合肥新桥机场 T2 航站楼 3 层楼板为例,对超长混凝土结构温度场进行了深入分析. 结合等效龄期和温度的影响,构建混凝土的温度场模型,模拟混凝土的水化放热和热传导过程,并对比分析模拟结果与现场监测数据,验证了模型的精确性和实用性. 研究表明,温度峰值主要出现在水化反应的初期阶段,且不同位置的温度峰值因散热条件不同而异;优化混凝土配合比和跳仓法施工顺序,可降低水化热积累,优化超长混凝土结构施工.

关键词：混凝土;温度场;水化热;等效龄期;有限元分析

English：

Taking the three floor slab of Hefei Xinqiao Airport Terminal T2 as an example, thetemperature field of super⁃long concrete structure is analyzed in depth. Combined with the influence ofequivalent age and temperature, the temperature field simulation model of concrete is constructed tosimulate the hydration heat release and heat conduction process of concrete. The accuracy andpracticability of the model are verified by comparing the simulation results with the field monitoring data.The results show that the peak temperature mainly occurs in the early stage of hydration reaction, and thepeak temperature at different positions varies with the heat dissipation conditions. Optimizing the concretemix ratio and the construction sequence of the jump method can reduce the accumulation of hydration heatand optimize the construction of super⁃long concrete structures.

[1]	肖建庄,宋志文,张枫. 混凝土导热系数试验与分析[ J]. 建筑材料学报,2010,13(1):17⁃21.XIAO J Z, SONG Z W, ZHANG F. An experimental study onthermal conductivity of concrete [ J ]. Journal of buildingmaterials,2010,13(1):17⁃21.
[2]	杨秋玲,马可栓. 大体积混凝土水化热温度场三维有限元分析[J]. 哈尔滨工业大学学报,2004,36(2):261⁃263.YANG Q L,MA K S. Analysis of massive concrete 3⁃dimensionalfinite element hydrated heat temperature field [ J]. Journal ofHarbin Institute of Technology,2004,36(2):261⁃263.
[3]	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 G L, HUANG F Y, SHEN H, et al. Research ontemperature field and thermal stress of hydration heat in massiveconcrete of construction period[J]. Concrete,2005(2):86⁃88.
[4]	段峥,马朝雷,王莉莉. 现浇大体积混凝土裂缝的成因与防治[J]. 混凝土,2003(5):48⁃48,58.DUAN Z, MA C L, WANG L L. The reasons and preventivemeasures of the cracking on mass concreting[ J]. Concrete,2003(5):48⁃48,58.
[5]	戴镇潮. 大体积混凝土的防裂[J]. 混凝土,2001(9):9⁃11.DAI Z C. Cracking control of mass concrete[ J]. Concrete,2001(9):9⁃11.
[6]	沈炳龙,王兵,陈波,等. 低磁性四元胶凝材料体系自密实混凝土的制备与性能研究 [J]. 施工技术(中英文), 2025, 54(19): 1⁃7.SHEN B L, WANG B, CHEN B, et al. Preparation and properties of self⁃compacting concrete with low magneticquaternary cementitious material system [ J ]. Constructiontechnology, 2025,54 (19): 1⁃7.
[7]	陈军校. 大体积混凝土水化热模拟及温控方案优化[D]. 大连:大连交通大学,2023.CHEN J X. Simulation of hydration heat of mass concrete andoptimization of temperature control scheme [ D]. Dalian:DalianJiaotong University,2023.
[8]	陈鹏,钟恩,胡其,等. 基于仿真分析的跳仓法在厦门翔安国际机场中的应用 [ J]. 施工技术 ( 中英文), 2024, 53 ( 5):26⁃31.CHEN P, ZHONG E, HU Q, et al. Application of jumpingwarehouse method based on simulation analysis in XiamenXiang􀆳an International Airports [ J ]. Construction technology,2024,53(5):26⁃31.
[9]	郑巍,李厚波,王懿晟,等. 超长底板混凝土配合比设计与跳仓法有限元分析[J]. 建筑施工,2024,46(2):164⁃168.ZHENG W,LI H B,WANG Y S,et al. Mix proportion design ofsuper⁃long floor concrete and finite element analysis of alternatebay construction method [ J ]. Building construction, 2024, 46(2):164⁃168.
[10]	李友顺. 大体积桥梁承台温度场模拟及养护方法研究[D].西安:西安工业大学,2016.LI Y S. Simulation of temperature field and research onmaintenance method of large volume bridge pile cap[D]. Xi’an:Xi’an Technological University,2016.
[11]	赵一博. 气温骤降对大体积混凝土温度场的影响研究[D].西安:西安建筑科技大学,2023.ZHAO Y B. Effect of air temperature drop on the temperaturefield of mixed soil with human accumulation [ D]. Xi’an:Xi’anUniversity of Architecture and Technology,2023.
[12]	许开成,易彬,张立卿,等. 酸雨环境下掺锂渣钢筋混凝土柱有限元分析[J]. 华东交通大学学报,2021,38(3):7⁃14.XU K C,YI B, ZHANG L Q, et al. Finite element analysis ofreinforced concrete column mixed with lithium slag under acidrain[J]. Journal of East China Jiaotong University,2021,38(3):7⁃14.
[13]	夏雄,吴炎,胡坤,等. 大体积混凝土温度演变规律研究[ J].混凝土,2017(6):152⁃156,160.XIA X,WU Y,HU K,et al. Research on temperature evolutionlaw in mass concrete[J]. Concrete,2017(6):152⁃156,160.
[14]	陆汝林,吴炎,李荟楠,等. 筏板基础大体积混凝土放热温度场数值模拟研究[J]. 混凝土,2024(2):188⁃192.LU R L,WU Y,LI H N,et al. Numerical simulation research onheat release temperature field of raft foundation mass concrete[J]. Concrete,2024(2):188⁃192.
[15]	朱伯芳. 混凝土绝热温升的新计算模型与反分析[ J]. 水力发电,2003,29(4):29⁃32.ZHU B F. A new computing model for the adiabatic temperaturerise of concrete and the method of back analysis [ J ]. Waterpower,2003,29(4):29⁃32.
[16]	王艳,孙雪. 混凝土绝热温升模型研究[J]. 公路交通科技(应用技术版),2017,13(10):31⁃33.WANG Y,SUN X. Study on adiabatic temperature rise model ofconcrete[J]. Highway traffic technology ( application technologyedition),2017,13(10):31⁃33.
[17]	陈川,王起才,张戎令,等. 水灰比以及水化程度对水泥水化计算模型的影响[J]. 混凝土,2014(7):32⁃36.CHEN C,WANG Q C,ZHANG R L,et al. Comput ing model foradiabat ic temperature rise of cement paste considering the effectof degree of hydrat ion and water⁃cement rat io of cement paste[J]. Concrete,2014(7):32⁃36.
[18]	王艳,孙雪. 混凝土绝热温升模型研究[J]. 公路交通科技(应用技术版),2017,13(10):31⁃33.WANG Y,SUN X. Study on adiabatic temperature rise model ofconcrete[J]. Highway traffic technology ( application technologyedition),2017,13(10):31⁃33.
[19]	郑伟,袁中夏,乔宏霞,等. 考虑水化度影响的大体积混凝土温度场分析[J]. 材料导报,2024,38(S1):254⁃260.ZHENG W, YUAN Z X, QIAO H X, et al. Temperature fieldanalysis of mass concrete considering the influence of hydrationdegree[J]. Materials reports,2024,38(S1):254⁃260.
[20]	LEE Y,KIM J K. Numerical analysis of the early age behavior ofconcrete structures with a hydration based microplane model[J].Computers & structures,2009,87(17 / 18):1085⁃1101.

混凝土 > 2026年 第卷 第10期