基于ABAQUS的地铁车站大体积混凝土温度影响因素研究

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发布时间：2020-01-06 00:00:00

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基于ABAQUS的地铁车站大体积混凝土温度影响因素研究

Study on the influencing factors of mass concrete temperature in subway station based on ABAQUS software

2024年第12期

大体积混凝土；温度场；等效龄期；ABAQUS软件；组合控温

Mass concrete; Temperature field; Equivalent age; ABAQUS software; Combined temperature control

2024年第12期

10.19761/j.1000-4637.2024.12.098.07

曹玉新1，寇帅2，霍曼琳2，*，王国义3，任少伟2，边崇2，刘亚轩2

1.中电建铁路建设投资集团有限公司，北京 100060；2.兰州交通大学土木工程学院，甘肃兰州 730070；3.中电建成都建设投资有限公司，四川成都 610218

曹玉新1，寇帅2，霍曼琳2，*，王国义3，任少伟2，边崇2，刘亚轩2

曹玉新,寇帅,霍曼琳,等.基于ABAQUS的地铁车站大体积混凝土温度影响因素研究[J].混凝土与水泥制品,2024(12):98-104.

CAO Y X,KOU S,HUO M L,et al.Study on the influencing factors of mass concrete temperature in subway station based on ABAQUS software[J].China Concrete and Cement Products,2024(12):98-104.

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摘要：依托成都地铁19号线二期工程双流机场2航站楼东站车站项目，利用ABAQUS软件建立了顶板混凝土温度场模型，研究了粉煤灰掺量（0、10%、20%、30%、40%、50%）、入模温度（10、15、20、25 ℃）、保温材料种类[土工布、聚苯乙烯板（以下简称EPS）、橡塑海绵]和保温层开始覆盖时间（0、20、30、40、50 h）对大体积混凝土温度场的影响，并优选出了较优组合控温方案。结果表明：在单因素作用下，混凝土试件的最大里表温差均低于25 ℃，满足相关规范要求，但内部降温速率均高于2.0 ℃/d；基于规范要求和实际工程项目施工条件，优选出的组合控温方案为粉煤灰掺量20%或30%、入模温度15 ℃、浇筑后30 h覆盖橡塑海绵。 Abstract: Based on the Chengdu Metro Line 19 Phase Ⅱ Shuangliu Airport Terminal 2 East Station project, the temperature field model of the roof concrete was established by using ABAQUS software, and the effects of fly ash content(0, 10%, 20%, 30%, 40%, 50%), casting temperature(10, 15, 20, 25 ℃), type of thermal insulation[geotextile fabrics, polystyrene boards (EPS), and rubber-plastic sponge] and starting time of insulation coverage(0, 20, 30, 40, 50 h) on the temperature field of mass concrete were investigated, and the better combination of temperature control program was preferred. The results show that, under the action of a single factor, the maximum value of temperature difference between the inside and outside of the concrete specimen is lower than 25 ℃, which meets the relevant specification requirements, but the internal cooling rate is higher than 2.0 ℃/d. Based on the specification requirements and the actual project construction conditions, the preferred combined temperature control program is as follows: the content of fly ash is 20% or 30%, the casting temperature is 15 ℃, and the rubber-plastic sponge is covered after pouring for 30 h.

英文名 : Study on the influencing factors of mass concrete temperature in subway station based on ABAQUS software

刊期 : 2024年第12期

关键词 : 大体积混凝土；温度场；等效龄期；ABAQUS软件；组合控温

Key words : Mass concrete; Temperature field; Equivalent age; ABAQUS software; Combined temperature control

刊期 : 2024年第12期

DOI : 10.19761/j.1000-4637.2024.12.098.07

文章编号 :

基金项目 :

作者 : 曹玉新1，寇帅2，霍曼琳2，*，王国义3，任少伟2，边崇2，刘亚轩2

单位 : 1.中电建铁路建设投资集团有限公司，北京 100060；2.兰州交通大学土木工程学院，甘肃兰州 730070；3.中电建成都建设投资有限公司，四川成都 610218

曹玉新1，寇帅2，霍曼琳2，*，王国义3，任少伟2，边崇2，刘亚轩2

曹玉新,寇帅,霍曼琳,等.基于ABAQUS的地铁车站大体积混凝土温度影响因素研究[J].混凝土与水泥制品,2024(12):98-104.

CAO Y X,KOU S,HUO M L,et al.Study on the influencing factors of mass concrete temperature in subway station based on ABAQUS software[J].China Concrete and Cement Products,2024(12):98-104.

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摘要

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结论

参考文献

引用本文

Abstract: Based on the Chengdu Metro Line 19 Phase Ⅱ Shuangliu Airport Terminal 2 East Station project, the temperature field model of the roof concrete was established by using ABAQUS software, and the effects of fly ash content(0, 10%, 20%, 30%, 40%, 50%), casting temperature(10, 15, 20, 25 ℃), type of thermal insulation[geotextile fabrics, polystyrene boards (EPS), and rubber-plastic sponge] and starting time of insulation coverage(0, 20, 30, 40, 50 h) on the temperature field of mass concrete were investigated, and the better combination of temperature control program was preferred. The results show that, under the action of a single factor, the maximum value of temperature difference between the inside and outside of the concrete specimen is lower than 25 ℃, which meets the relevant specification requirements, but the internal cooling rate is higher than 2.0 ℃/d. Based on the specification requirements and the actual project construction conditions, the preferred combined temperature control program is as follows: the content of fly ash is 20% or 30%, the casting temperature is 15 ℃, and the rubber-plastic sponge is covered after pouring for 30 h.

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基于ABAQUS的地铁车站大体积混凝土温度影响因素研究

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