某大型LNG储罐预应力施工模拟分析.pdf

2014年11月上 施工技术 第43卷第21期 CONSTRUCTION TECHNOLOGY 49 D0I:10.7672/5js2014210049 某大型LNG储罐预应力施工模拟分析* 李振宝1，林树潮，王冬雁2，谢利红3，吴树勤3，韦永斌2，廖娟2 (1.北京工业大学工程抗震与结构诊治北京市重点实验室，北京100124；2.中国建筑股份有限公司技术中心， 北京101300；3.中建电力建设有限公司，广东深圳518034) [摘要]储罐外罐是确保LG储罐安全的关键设施，预应力筋施工过程是建立结构受力体系的重要环节，研究其建 立过程对LNG储罐具有重要意义.以某大型LNG储罐为背景，选用大型通用有限元软件ANSYS建立有限元实体 模型，分析了LNG储罐在预应力筋施工过程中罐体的变形、应力状态以及预应力筋应力状态，验证了LNG储罐罐 体在预应力施工过程中受力性能良好并在控制范围内. [关键词]LNG储罐；预应力：施工技术；有限元分析 [中图分类号]TU359 [文献标识码]A [文章编号]1002-8498(2014)21-0049-05 Construction Analysis on Prestressing of Some Large LNG Storage Tank Li Zhenbao Lin Shuchao Wang Dongyan2 Xie Lihong Wu Shuqin Wei Yongbin2 Liao Juan㎡ (1.Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit Beijing University of Technology Beijing 100124 China;2.China State Construction Engineering Co.Ltd.Technical Center Beijing 101300 China; 3.China Construction Electric Power Construction Co.Ltd.Shenzhen Guangdong 518034 China) Abstract:The outer tank is the key facility to ensure the safety in the LNG storage tank prestressed tendon construction process is an important part for establishing structure system so it is of great significance to study the establishing process.Based on some LNG storage tank this paper chooses a large general finite element software ANSYS and establishes the finite element solid model analyzes the concrete stress state storage tank deformation and prestressed tendon stress state which proves good mechanieal performance and the stress is under control duri...