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| 沉管结构预制全过程温度和应力仿真分析 | |
| 引用本文： | 罗垚,柳献,王胜年.沉管结构预制全过程温度和应力仿真分析[J].结构工程师,2012,28(2):46-52. |
| 作者姓名： | 罗垚 柳献 王胜年 |
| 作者单位： | 1. 同济大学地下建筑工程系,上海,200092 2. 同济大学地下建筑工程系,上海 200092;同济大学岩土及地下工程教育部重点实验室,上海 200092 3. 中交四航工程研究院有限公司,广州,510231 |
| 基金项目： | 国家自然科学基金资助项目，国家科技支撑计划 |
| 摘 要： | 针对工厂法沉管预制施工工艺进行沉管结构温度场和应力场仿真分析。采用室内力学和热工试验得到混凝土材料力学参数和热学参数,考虑预制全过程各阶段变化的力学边界条件和热学边界条件,应用有限元方法建立仿真模型,得到了沉管结构温度场和应力场的发展规律。 |
| 关 键 词： | 沉管结构 温度应力 仿真分析 大体积混凝土 |
A Temperature and Stress Simulation of Immersed Tunnel during Precasting |
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| LUO Yao , LIU Xian , WANG Shengnian.A Temperature and Stress Simulation of Immersed Tunnel during Precasting[J].Structural Engineers,2012,28(2):46-52. | |
| Authors: | LUO Yao LIU Xian WANG Shengnian |
| Affiliation: | 1.Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China; 2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University, Shanghai 200092,China;3.CCCC Fourth Harbor Engineering Institute Co.,Ltd,Guangzhou 510231,China) |
| Abstract: | Started with the precast construction process of a segment of immersed tunnel,temperature and stress varying of the tube were simulated.In the numerical model,the material parameters,thermal parameters and mechanical parameters were obtained through experiment.Moreover,complex thermal boundary and mechanical boundary conditions were considered.Finally,the numerical model was used to conduct a finite element analysis,and the evolution rules of temperature and stress field were obtained. |
| Keywords: | immersed tunnel temperature and stress simulation mass concrete |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |