| 江市特大桥箱梁混凝土水化热温度实测与分析 |
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| 引用本文： | 杨建斌,方志,何俊荣,马智慧.江市特大桥箱梁混凝土水化热温度实测与分析[J].中南公路工程,2013(6):65-69. |
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| 作者姓名： | 杨建斌 方志 何俊荣 马智慧 |
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| 作者单位： | [1]湖南省怀通高速公路建设开发有限公司,湖南怀化418116 [2]湖南大学土木工程学院,湖南长沙410082 |
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| 摘 要： | 混凝土水化热是引起箱梁产生早期裂缝的主要因素之一。本文对江市特大桥19#墩右幅0#块箱梁混凝土水化热温度场进行了现场实测，并用Midas／Civil软件建立有限元模型进行了仿真分析，计算值和实测值吻合良好。基于实测和分析结果对内外温差控制、混凝土配合比设计及早期开裂控制提出若干建议，对箱梁开裂控制工作具有指导性意义。
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| 关 键 词： | 水化热 温度场 有限元分析 |
Field Test and Analysis on Hydration Heat Temperature of Concrete Box Girder in Jiangshi Bridge |
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| YANG Jianbin,FANG Zhi,HE Junrong,MA Zhihui.Field Test and Analysis on Hydration Heat Temperature of Concrete Box Girder in Jiangshi Bridge[J].Central South Highway Engineering,2013(6):65-69. |
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| Authors: | YANG Jianbin FANG Zhi HE Junrong MA Zhihui |
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| Affiliation: | 1. Hunan Huaitong Expressway Construction ＆ D 2. School of Civil Engineering, Hunan University, evelopment Ltd, Huaihua, Hunan 418116, China ; Changsha, Hunan 410082, China) |
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| Abstract: | Hydration heat of concrete is one of the main factors generating the early cracks of box girder. In this paper, field test on temperature distribution of the box girder of Jiangshi bridge was con- ducted and the finite element model was established for the simulation analysis. The calculated and the measured values coincide well. Based on the results, some suggestions were made for inside and outside temperature difference control, the mix design of concrete, and early cracking control. |
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| Keywords: | hydration heat temperature field finite element analysis |
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