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APPLICATION OF FE METHOD IN TEMPERATURE CONTROL DURING CONSTRUCTION OF MASS CONCRETE RAFT FOUNDATIONS
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摘要: 现行行业标准YBJ22491《块体基础大体积混凝土施工技术规程》对大体积混凝土施工养护技术指标的计算没有考虑有限单元法,为配合GB/J504962009《大体积混凝土施工技术规范》的颁布和新增有限单元法的应用,以某核电站筏基整体浇筑温控施工为例,开展有限单元法估算养护技术指标的研究并成功指导温控施工。通过对理论计算和实测结果的分析,得出有限单元法计算养护技术指标的可行性和指导温控施工的优越性,可为新规范的颁布提供理论基础和实践依据。Abstract: Current professional standard YBJ 22491 Technical Regulation of Mass Concrete Construction of Block Foundations doesn't account of conservation indicator calculation of mass concrete by finite element technique in construction.In order to adapt promulgation of the new GB/J 504962009 Technical Specification of Mass Concrete Construction and application of the finite element method,this paper attempts estimation of curing indexes by finite element method and accomplish successfully to guide the construction of a raft foundation.Through analysing theoretical value and measured value,the finite element method for guiding construction is feasible and preponderant.All these can provide a theoretic basis and practical evidences for the publication of the new specifications.
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Key words:
- finite element method /
- curing indexes /
- temperature monitor /
- mass concrete /
- raft foundation
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YBJ 22491块体基础大体积混凝土施工技术规程[S]. [2] 张忠,张心斌. CPR1000核电站基础多层整体浇筑可行性有限元分析[J].工业建筑,2009,39(10):102-104. [3] 魏建国,张忠,张心斌.核电站筏基大体积混凝土温控监测及仿真分析[J].工业建筑,2008,38(增刊):1033-1035. [4] 张忠,张心斌.混凝土无约束监测装置研制及应用研究[J].安徽建筑工业学院学报,2009(4):4-7. [5] 张忠,张心斌.《大体积混凝土施工技术规范》(送审稿)中有限单元法在某核电站筏基施工裂缝控制中的应用[J].工业建筑,2008,38(增刊):208-214. [6] GB 504962009大体积混凝土施工规范[S]. [7] GB 502042002混凝土结构工程施工质量验收规范[S]. [8] 王铁梦.工程结构裂缝控制[M].北京:中国建筑工业出版社,2007. [9] 朱伯芳.大体积混凝土温度应力与温度控制[M].北京:中国电力出版社,2003:1-738. [10] 王润富,陈国荣.温度场和温度应力[M].北京:科学出版社,2005:1-176. [11] 郝文化,叶裕明,刘春山,等. ANSYS土木工程应用实例[M].北京:中国水利水电出版社,2005:75-82. [12] 刘涛,杨凤鹏.精通 ANSYS[M].北京:清华大学出版社,2001:345-368. -
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