| 用高阶曲线有限条法分析混凝土曲线梁桥 |
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| 引用本文： | 瞿尔仁,张家慧.用高阶曲线有限条法分析混凝土曲线梁桥[J].合肥工业大学学报(自然科学版),1996(3). |
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| 作者姓名： | 瞿尔仁 张家慧 |
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| 作者单位： | 合肥工业大学，安徽省公路勘测设计院 |
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| 摘 要： | 针对工程中提出的曲线梁桥的新课题，为了有效地进行全桥分析，获取设计所需的纵向、横向内力，文章采用高阶有限条法（ＨｉｇｈｏｒｄｅｒＦｉｎｉｔｅＳｔｒｉｐＭｅｔｈｏｄ）分析等截面曲线梁桥。其形函数用Ｈｅｒｍｉｔ函数法构造，形式简洁、运用能量原理从基于薄板的几何矩阵和基于线弹性的内力矩阵导出了单元刚度矩阵，采用ＦＯＲＴＲＡＮ－７７语言完成了编程工作．经过算例比较．说明了高阶曲线有限条法的简洁性和高精度性。
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| 关 键 词： | 曲线梁桥 高阶曲线有限条 全桥分析 刚度法 实用程序 |
STRUCTURAL ANALYSIS OF CONCRETE CURVED BRIDGE BY HIGHER ORDER FSM |
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| Qu Erren,Zhang Jiahui.STRUCTURAL ANALYSIS OF CONCRETE CURVED BRIDGE BY HIGHER ORDER FSM[J].Journal of Hefei University of Technology(Natural Science),1996(3). |
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| Authors: | Qu Erren Zhang Jiahui |
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| Institution: | Qu Erren;Zhang Jiahui (Hefei University of Technology)(Anhui Institute of Highway Surveying&.Designing) |
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| Abstract: | Curved girder bridge is a new task given by engineering practice.The paper adopts HO3-FSM to analyse curved bridge with same section, so we can obtain longitudinal and crossing forces for bridge complete analysis. The briefer shape functions are builty by means of Hermit method, the element stiffness matrix is derived according to principle of minimum potential energy from the strain metrix of thin plate and the stress matrix of lineral elastic mass. The accomplishment of HO3-FSM program and calculating examples prove that the HO curved strip method is briefer and preciser. |
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| Keywords: | curved girder bridge higher order ESM bridge complete analysis stiffness method utility program |
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