| 混凝土底板温度及温度应力影响参数分析 |
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| 引用本文： | 侯景鹏,刘立军,陈晨. 混凝土底板温度及温度应力影响参数分析[J]. 东北电力学院学报, 2009, 29(6): 11-14 |
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| 作者姓名： | 侯景鹏 刘立军 陈晨 |
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| 作者单位： | 东北电力大学,建筑工程学院,吉林,吉林,132012 |
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| 摘 要： | 借助参数化设计语言(APDL)分析了水泥品种及标号、结构尺寸、外界约束对混凝土底板温度及温度应力的影响.结果表明:与普通硅酸盐水泥525相比,普通硅酸盐水泥425、矿渣水泥425可使底板最大拉应力分别减低约21%、37%;底板平面尺寸增大,压应力几乎保持不变,拉应力增大,发展较为平缓;底板厚度越大,出现最高温度的龄期越晚,底板降温时持续高温时间更长,且温度应力随厚度增大而增大.
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| 关 键 词： | 混凝土底板 水泥品种 结构尺寸 外部约束 温度应力 |
Analysis of Parameters Affecting Temperature and Thermal Stress in Concrete Slab |
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| HOU Jing-peng,LIU Li-jun,CHEN Chen. Analysis of Parameters Affecting Temperature and Thermal Stress in Concrete Slab[J]. Journal of Northeast China Institute of Electric Power Engineering, 2009, 29(6): 11-14 |
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| Authors: | HOU Jing-peng LIU Li-jun CHEN Chen |
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| Affiliation: | HOU Jing-peng,LIU Li-jun,CHEN Chen (Architecture Engineering College of Northeast Dianli University,Jilin,132012) |
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| Abstract: | Both temperature and thermal stresses of concrete slab affected by cement types and cement grades, structural dimensions,and external restraint are analyzed based on ANSYS Parametric Design Language(AP-DL). Results show compared with ordinary Portland cement 525,ordinary Portland cement 425 and slag cement 425 decrease thermal stresses by 21%and by 37%respectively;tensile stresses increase with increasing planar dimensions though compressive stresses remain unchanged;increasing in thickness of slab not only... |
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| Keywords: | concrete slab cement types structural dimension external restraint thermal stress |
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