| 王磊,刘寒冰,吴斌暄,高慧婷.六面体单元下预应力等代荷载计算[J].计算力学学报,2005,22(6):785~787 |
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| 六面体单元下预应力等代荷载计算 |
| Calculation for equivalent loads of prestress in hexahedron element |
| 修订日期：2003-11-13 |
| DOI：10.7511/jslx20056152 |
| 中文关键词: 预应力 等代荷载 六面体单元 几何形状 桥梁 |
| 英文关键词:prestress,equivalent loads,hexahedron element |
| 基金项目:教育部博士点专项基金(2030183925)资助项目 |
| 王磊 刘寒冰 吴斌暄 高慧婷 |
| [1]吉林大学交通学院,吉林长春130022 [2]吉林建筑工程学院,吉林长春130021 |
| 摘要点击次数: 1167 |
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| 中文摘要: |
| 对于具有复杂几何形状的桥梁，用体单元进行有限元分析有得天独厚的优势。预应力在有限元分析中一般按等代荷载考虑，但体单元的预应力等代荷载计算很少见到讨论。笔者提出一种运用高斯积分和牛顿迭代法的数值算法计算体单元情况下的预应力等代荷载，该方法能够适应各种复杂的预应力钢束形状。经过算例检验，该方法有很高的精度。 |
| 英文摘要: |
| For the bridge of complex geometry shape,body element analysis has excellent advantage in the FE analysis.Prestress is converted normally into equivalent loads in the finite element analysis,but calculation of equivalent loads of prestress in body element is very few to be discussed.The authors put forward a kind of numerical method combined with the Newton iterative algorithm and Gauss integral algorithm,this method can meet be used to calculate the equivalent loads of prestress in the various complex steel in bundle shapes.Through the final regular inspection,this method has been proved to have very high precision. |
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