| 大体积混凝土早期温度发展规律及温度控制 |
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| 引用本文： | 吕建福,汪东杰,巴恒静.大体积混凝土早期温度发展规律及温度控制[J].混凝土,2006(4):23-24,42. |
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| 作者姓名： | 吕建福 汪东杰 巴恒静 |
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| 作者单位： | 1. 哈尔滨工业大学土木工程学院,黑龙江,哈尔滨,150006
2. 杭州市交通设施建设处,浙江省,杭州,310005 |
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| 摘 要： | 本文通过对桥栋大体积混凝土的温度测试,获得混凝土内部瞬时的温度场和温度发展规律.事先安装冷却管减缓混凝土内部水泥水化,控制内部的温升,并根据现场实测温度调整表面覆盖层的厚度进行养护,这样可以减小表层与中心温差,从而可以减少或杜绝混凝土的表面和内部的微裂缝.此外根据工程实际利用有限元软件ANSYS,进行混凝土温度场的数值模拟.
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| 关 键 词： | 温升规律 降温措施 ANSYS数值分析 温度场分布 |
| 文章编号： | 1002-3550-（2006）04-0023-03 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-03-16 |
The Rule of Temperature development and temperature Controlled of mass concrete |
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| LV Jian-fu,WANG Dong-jie,BA Heng-jing.The Rule of Temperature development and temperature Controlled of mass concrete[J].Concrete,2006(4):23-24,42. |
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| Authors: | LV Jian-fu WANG Dong-jie BA Heng-jing |
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| Affiliation: | 1 School of Civil Engineering, Harbin Institute of Technology Harbin, 150006, Zhejiang Province, China;2 Hangzhou Communication Project Management Department, Hangzhou , 310005, Heilongjing Province, China |
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| Abstract: | Through having measured the temperature of bridge pier mass concrete, instant internal concrete temperature field and the rule of temperature development was obtained. Pre-embedding cooling duct in concrete slow up cement hydration rate , control the internal concrete temperature rise and according to measured temperature to adjust the cover thickness, so it reduce internal-surface temperature difference. Thus it reduce or avoid the crack arising. Additionally, according to engineering practice utilizing finite software- ANSYS, the temperature distribution of mass concrete was got through mathematical analysis. |
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| Keywords: | the rule of temperature rise cooling method ANSYS mathematical analysis the distributionof temperaturefield |
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