| 日照下钢管混凝土哑铃形拱肋截面的温度场有限元计算 |
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| 引用本文： | 柯婷娴,陈宝春,刘振宇.日照下钢管混凝土哑铃形拱肋截面的温度场有限元计算[J].长沙交通学院学报,2008,24(4):12-17. |
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| 作者姓名： | 柯婷娴 陈宝春 刘振宇 |
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| 作者单位： | 福州大学,土木工程学院,福建,福州350002 |
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| 基金项目： | 福建省重大科技项目
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| 摘 要： | 提出了考虑日照作用的钢管混凝土哑铃形拱肋截面温度场的计算方法．将日照下钢管混凝土哑铃形拱肋截面简化为由若干直平面组成，把边界上的太阳辐射作用等效为周围大气温度的升高，略去了影响较小的长波辐射热流，应用有限元程序ANSYS进行了算例计算，验证了该方法的可行性．分析结果表明：拱轴倾角会影响日照作用下各截面的温度场，但这种影响较小，工程应用中可忽略，视各截面温度场为相同，从而将拱肋的空间温度场问题简化为拱肋截面的二维温度场问题．
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| 关 键 词： | 钢管混凝土 日照 温度场 哑铃形 边界条件 有限元法 简化计算 |
FE calculation on temperature field in dumbbell-shaped section of CFST arch under solar radiation |
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| KE Ting-xian,CHEN Bao-chun,LIU Zhen-yu.FE calculation on temperature field in dumbbell-shaped section of CFST arch under solar radiation[J].Journal of Changsha Communications University,2008,24(4):12-17. |
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| Authors: | KE Ting-xian CHEN Bao-chun LIU Zhen-yu |
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| Institution: | KE Ting-xian,CHEN Bao-chun,LIU Zhen-yu(College of Civil Engineering,Fuzhou University,Fuzhou 350002,China) |
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| Abstract: | A calculation method is put forward for the temperature field in dumbbell-shaped section of concrete filled steel tubular arch under solar radiation.In this method,dumbbell-shaped section is simplified as composed of several straight planes in calculating its solar effect,and the solar radiation on boundary is considered as increasing atmosphere temperature.The heat flux from longwave radiation is neglected because its effect is very small.A case study is carried out by this method with ANSYS software and t... |
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| Keywords: | concrete filled steel tube solar radiation temperature field dumbbell-shaped section boundary condition finite element method simplified calculation |
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