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连续刚构桥承台施工中的温度分析
引用本文:王解军 梁锦锋 王明明. 连续刚构桥承台施工中的温度分析[J]. 中南公路工程, 2005, 30(4): 86-90
作者姓名:王解军 梁锦锋 王明明
作者单位:湖南大学结构工程研究所,湖南长沙410082
摘    要:
现场测试了预应力混凝土连续刚构桥2个不同厚度的承台施工过程的温度变化,按理论方法分析了冷却水对降低混凝土水化热引起的最高温度的贡献,并且将理论分析结果与实测结果进行了比较。结果表明,对于厚度较大的承台,冷却水对降低混凝土最高温度的作用更加明显。

关 键 词:连续刚构桥 大体积混凝土承台 施工过程 水化热 冷却水 温度分析
文章编号:1002-1205(2005)04-0086-05
收稿时间:2005-06-24
修稿时间:2005-06-24

Temperature Analysis for Construction of Supporting Terraces in Continuous Frame Bridge
WANG Jiejun, LIANG Jinfeng, WANG Mingming. Temperature Analysis for Construction of Supporting Terraces in Continuous Frame Bridge[J]. Central South Highway Engineering, 2005, 30(4): 86-90
Authors:WANG Jiejun   LIANG Jinfeng   WANG Mingming
Affiliation:Hunan University, Changsha, Hunan 410082, China
Abstract:
The changes of temperature during construction process for two supporting terraces with different thickness, in a continuous frame bridge, are spot test in this paper. Contributions of cooling water for reducing the highest temperature arisen by concrete hydrate heats are analyzed according to theoretical method. It also compares both results of theoretical analysis and actual test here. The result shows that cooling water makes a more obvious effect on reducing the highest temperature to the thicker supporting terrace.
Keywords:mass concretes supporting terraces   construction process   hydrate heat   cooling water  temperature analysis
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