| 抛物线拱变位引起的内力计算一般公式 |
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| 引用本文： | 邓德员.抛物线拱变位引起的内力计算一般公式[J].科学技术与工程,2011,11(6). |
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| 作者姓名： | 邓德员 |
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| 作者单位： | 华南理工大学土木与交通学院,广州,510640 |
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| 基金项目： | 华南理工大学亚热带建筑科学国家重点实验室开发课题，重点实验室开发课题 |
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| 摘 要： | 本文采用结构力学方法，从弹性中心法出发，推导出抛物线拱变位引起的内力计算一般公式和抛物线拱的两拱脚转角位移方程。通过极限逼近得到与直梁一致的杆端转角位移方程。本文还通过算例用有限元软件验证了内力计算公式。
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| 关 键 词： | 弹性中心法 抛物线拱 转角位移方程 直梁 |
| 收稿时间： | 2010/11/28 0:00:00 |
| 修稿时间： | 2010/11/28 0:00:00 |
General formula for calculating internal forces of parabolic arch caused by deflection |
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| dengdeyuan.General formula for calculating internal forces of parabolic arch caused by deflection[J].Science Technology and Engineering,2011,11(6). |
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| Authors: | dengdeyuan |
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| Institution: | LI Xin-ping,DENG De-yuan,ZHANG Yun-fan(College of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,P.R.China) |
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| Abstract: | This paper uses the structural mechanics method,starts from the method of elastic center method,derives the general formula for calculating internal forces of parabolic arch caused by the deflection and the rotational displacement equation for parabolic arch.By using the method of limit approximation can obtain the same result as straight beam. Also ,some example calculated by finite element software is showed to verify the formula. |
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| Keywords: | method of elastic center parabolic arch rotational displacement equation straight girder |
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