摘要
文章以某过江通道锚碇鞍部大体积混凝土温控项目为背景,采用MIDAS/FEA软件建立有限元分析模型,根据分析结果,制订温控方案,对锚锭鞍部大体积进行温控技术研究。从混凝土浇筑到养护阶段,全程进行自动化温控技术,通过大体积混凝土实测温度的变化,调整冷却水管的流量和保温保湿措施。实践证明,大体积混凝土自动化温度监测实现了信息化温控,结合各温控指标的变化,采取相应有效的温控措施,可有效减少温度裂缝的产生。
Taking the mass concrete temperature control project of the anchorage saddle of a river crossing channel as the background,the finite element analysis model is established by using MIDAS/FEA software.According to the analysis results,the temperature control scheme is formulated to study the temperature control technology for the mass of the anchorage saddle.From concrete pouring to curing stage,automatic temperature control technology is carried out in the whole process.Through the measured temperature change of mass concrete,the flow of cooling water pipe and thermal insulation and moisturizing measures are adjusted.Practice has proved that the automatic temperature monitoring of mass concrete realizes information temperature control.Combined with the changes of various temperature control indexes,taking corresponding effective temperature control measures can effectively reduce the occurrence of temperature cracks.
作者
万霆
郑华凯
叶健锁
李周文
王永泉
李天福
WAN Ting;ZHENG Hua-kai;YE Jian-suo;LI Zhou-wen;WANG Yong-quan;LI Tian-fu(Jiangsu Jianke Appraisal Consulting Co.,Ltd,Nanjing Jiangsu 210009 China;Jiangsu Transportation Engineering Construction Burea,Nanjing Jiangsu 210009 China;School of Architectural Engineering,Nanjing Institute of Engineering,Nanjing Jiangsu 211100 China;School of Civil Engineering,Sanjiang University,Nanjing Jiangsu 210012 China)
出处
《江苏建筑》
2022年第4期112-115,134,共5页
Jiangsu Construction
基金
住建部科技计划资助项目(2020-K-165)
南京工程学院高层次引进人才科研启动基金资助项目(YKJ201928)
江苏省高等学校基础科学(自然科学)研究资助项目(21KJD560007)。
关键词
大体积混凝土
有限元模型
温度裂缝
自动化监测
mass concrete
finite element model
temperature crack
automatic monitoring
