| 大型高架桥无支架盖梁施工过程模板受力特性的3D-FEM模拟分析 |
| |
| 引用本文： | 徐智华,汪铁钧,黄醒春.大型高架桥无支架盖梁施工过程模板受力特性的3D-FEM模拟分析[J].上海交通大学学报,2011(Z1). |
| |
| 作者姓名： | 徐智华 汪铁钧 黄醒春 |
| |
| 作者单位： | 上海市第二市政工程有限公司;上海交通大学海洋水下工程科学研究院; |
| |
| 摘 要： | 以上海S32高速公路闵浦大桥西侧引桥段的盖梁施工为例,通过合理的边界条件处理,基于ABAQUS有限元分析软件建立了复杂结构的3D-FEM模型,并以混凝土弹性模量和泊松比的变化模拟实际施工,进而分析无支架盖梁的受力状态.计算结果与现场实测的结果基本吻合,为无支架盖梁施工技术的研究分析提供了参考方法.研究表明:混凝土浇注完成约10 h左右,即具有90%的设计强度,基本能承受自身重力荷载,盖梁的竖向及横向荷载逐渐向混凝土转移;同时,该时间的确定为现场确定拆模时间、提高施工进度提供了依据.
|
| 关 键 词： | 无支架盖梁 混凝土相变 3D-FEM模型 施工仿真模拟 |
Three Dimensional FEM Simulation of Formwork Mechancical Property During the Construction of Large High-bridge Support-free Capping Beam |
| |
| XU Zhi-hua,WANG Die-jun,HANG Xing-chu.Three Dimensional FEM Simulation of Formwork Mechancical Property During the Construction of Large High-bridge Support-free Capping Beam[J].Journal of Shanghai Jiaotong University,2011(Z1). |
| |
| Authors: | XU Zhi-hua WANG Die-jun HANG Xing-chu |
| |
| Institution: | XU Zhi-hua1,WANG Die-jun,HANG Xing-chu(1.Shanghai No.2 Manicipal Engineering CO.,Ltd.,Shanghai 200065,China,2.School of NavalArchitecture,Ocean and Civil Engineering,Shanghai Jiaotong University,Shanghai 200240,China) |
| |
| Abstract: | Although the support-free capping beam techniques have been widely applied to various areas,engineering accidents happen due to lack of accurate numrical analysis.Take the capping beam construction of west sied approach-bridge of Shanghai S32 Highway Min-Pu Bridge as an example,by taking reasonable treatment of boundary conditions,the three dimensional Finite Element Method(FEM) model of complex structure has been set up based on ABAQUS FEM software.The simulation of practical construction with different co... |
| |
| Keywords: | support-free capping beam concrete phase change 3-D FEM model construction simulation |
| 本文献已被 CNKI 等数据库收录！ |
|
