摘要
按照施工计划安排,对淇河倒虹吸管身段工程进行分层浇筑,利用ANSYS有限元软件,结合混凝土温控仿真基本理论,对管身段进行复杂三维建模和加载求解工作,从而完成了混凝土施工期温度场和应力场的仿真分析。结果表明在倒虹吸管身段底板及边墙部位最大温度应力大于混凝土即时允许抗拉强度值,产生温度裂缝的概率很大,参考分析计算结果提出了相应的温控措施。
According to the construction schedule, we have layered the casting pipe body of the Qihe River Project. Then, we use the ANSYS software, combining the basic theory of simulation of concrete temperature control and making a 3D modeling, then load them to solve problems and complete the simulation analysis of temperature field and stress field of the concrete during the construction period. Known from the analysis of the stress field results, the maximum temperature stress in the inverted siphon body bottom and sidewall area is greater than concrete instant tensile strength value, can produce temperature crack easily. In conclusion, we put forward temperature control measures combining with the analysis and calculation results.
作者
张东艳
吴运卿
胡连超
ZHANG Dong-yan WU Yun-qing HU Lian-chao(College of Agriculture and Animal Husbandry, Tibet University, Linzhi 860000,Tibet Province,China School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan 430072, China China Construction Seventh Engineering Division Corporation, Zhengzhou 450000,China)
出处
《中国农村水利水电》
北大核心
2016年第11期139-141,146,共4页
China Rural Water and Hydropower
基金
国家科技支撑计划项目(2013BAJ03B00)
西藏大学农牧学院青年基金项目(NYQNKY2014-08)
关键词
倒虹吸管身段
温度应力
大体积混凝土
仿真分析
the inverted siphon figure
temperature stress
mass concrete
simulation analysis
