| 钢管混凝土拱肋施工过程截面温度特性分析 |
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| 引用本文： | 刘振宇,陈宝春.钢管混凝土拱肋施工过程截面温度特性分析[J].公路交通科技,2006,23(5):48-51. |
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| 作者姓名： | 刘振宇 陈宝春 |
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| 作者单位： | 福州大学土木建筑工程学院 福建福州350002 |
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| 基金项目： | 福建省重大科技项目(2003F007) |
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| 摘 要： | 应用大型通用程序对钢管混凝土构件截面温度场进行计算。对不同的水化热计算模型进行比较分析,认为复合指数式较为合适。对钢管壁厚、管径、混凝土导热系数等参数对钢管混凝土拱肋施工过程截面温度特性的影响进行了分析,结果表明:钢管壁厚影响较小,而管径的影响较大;混凝土导热系数对截面温度场有一定的影响,但对于同一种骨料的混凝土其影响不大。
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| 关 键 词： | 桥梁工程 温度场 钢管混凝土 拱桥 有限元 施工 |
| 收稿时间： | 2004-09-07 |
Thermal Property Analysis of Concrete Filled Steel Tubular Arch Rib During Construction |
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| LIU Zhen-yu, CHEN Bao-chun.Thermal Property Analysis of Concrete Filled Steel Tubular Arch Rib During Construction[J].Journal of Highway and Transportation Research and Development,2006,23(5):48-51. |
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| Authors: | LIU Zhen-yu CHEN Bao-chun |
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| Institution: | College of Civil Engineering and Architecture, Fuzhou University, Fujian Fuzhou 350002, China |
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| Abstract: | The temperature field of concrete filled steel tubular member is calculated by using general finite element program.Compared with other models for cement hydration heat,the compound exponent model is regarded as the appropriate one.Steel thickness,diameter of tube and thermal conductive coefficient of concrete are chosen as parameters.Parametric study indicates that steel thickness has little influence on the temperature field of CFST arch rib during construction,while diameter of tube has great influence.The thermal conductive coefficient of concrete has some influence on the temperature field;however,for the concrete with same aggregate,the coefficient varies in small range,so its influence is limited. |
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| Keywords: | Bridge engineering Temperature field Concrete filled steel tubular Arch bridge Finite element Construction |
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