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| 预应力混凝土桥梁分析的虚拟层合单元法 | |
| 引用本文： | 亓兴军,项贻强,李小军,徐兴. 预应力混凝土桥梁分析的虚拟层合单元法[J]. 公路交通科技, 2006, 23(8): 76-80 |
| 作者姓名： | 亓兴军 项贻强 李小军 徐兴 |
| 作者单位： | 1. 山东建筑工程学院,土木工程系,山东,济南,250101 2. 浙江大学,土木工程系,浙江,杭州,310027 3. 中国地震局,工程力学研究所,黑龙江,哈尔滨,150080 |
| 基金项目： | 国家自然科学基金资助重点项目(50439030) |
| 摘 要： | 通过将预应力束对桥梁结构的作用转化为等效荷载,提出了用虚拟层合单元法分析预应力混凝土桥梁的方法。结合一座具体的桥梁进行了实例分析计算,同时利用有限元通用分析程序SuperSAP进行了对比。结果表明,采用虚拟层合单元法分析预应力混凝土桥梁能够给出令人满意的结果,并且具有划分单元数目少、计算效率高、适应性强的优点。 |
| 关 键 词： | 有限元 虚拟层合单元法 预应力混凝土 等效荷载 箱梁 |
| 文章编号： | 1002-0268(2006)08-0076-05 |
| 收稿时间： | 2005-04-15 |
| 修稿时间： | 2005-04-15 |
Analysis of Prestressed Concrete Bridge with Virtual Laminated Element Method |
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| QI Xing-jun,XIANG Yi-qiang,LI Xiao-jun,XU Xing. Analysis of Prestressed Concrete Bridge with Virtual Laminated Element Method[J]. Journal of Highway and Transportation Research and Development, 2006, 23(8): 76-80 | |
| Authors: | QI Xing-jun XIANG Yi-qiang LI Xiao-jun XU Xing |
| Affiliation: | Department of Civil Engineering, Shandong Institute of Architecture and Engineering, Shandong Jinan 250101, China; 2. Department of Civil Engineering, Zhejiang University, Zhejiang Hangzhou 310027, China; 3. Institute of Engineering Mechanics, China Earthquake Administration, Heilongjiang Harbin 150080, China |
| Abstract: | The effect of prestressed steel bars on bridge structure is transformed to the equivalent loads,then an approach of analyzing prestressed concrete bridge is presented with virtual laminated element method.Based on an actual bridge,the comparative analytical calculations are done with the proposed approach and the finite element general program Super SAP.The results indicate that the proposed approach can analyze the prestressed concrete bridge with satisfied calculation result,and it has the advantage of less element number,higher calculative efficiency and better suitabitity. |
| Keywords: | finite element virtual laminated element method prestressed concrete equivalent loads box-shape girders |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |