河北水利电力学院学报2023，Vol.33Issue(4)：42-47,6.DOI:10.16046/j.cnki.issn2096-5680.2023.04.008
蔡家庄特大桥承台施工水化热控制方案与仿真分析
Hydration Heat Control Scheme and Simulation Analysis of Caijiazhuang Bridge Pier Cap Construction
摘要
Abstract
Combined with the Caijiazhuang super major bridge engineering project,according to the preliminary calculation of cap hydration heat and cap shape,the cooling water pipe is scientifically ar-ranged.According to the regulations of mass concrete specifications,MIDAS software is used for hydra-tion heat simulation analysis,and the temperature field inside the cap and the concrete stress distribution cloud map are obtained.According to the calculated temperature field distribution,a miniature wireless temperature sensor is arranged inside the cap,and the number of sensors is appropriately increased in the high temperature area and low temperature area.Through continuous data observation for 5 days after the cap pouring,the maximum temperature difference of measuring points is 23.6 degrees,which is highly consistent with the simulation results and meets the requirements of the specification.After testing,no cracks appeared in the cap,which indicates that the hydration heat simulation analysis can reflect the actual situation and ensure the construction safety,which provides references for similar cap reinforcement con-struction hydration heat control.关键词
大体积混凝土/水化热/仿真分析Key words
mass concrete/heat of hydration/simulation analysis/monitoring分类
交通运输引用本文复制引用
王成仁..蔡家庄特大桥承台施工水化热控制方案与仿真分析[J].河北水利电力学院学报,2023,33(4):42-47,6.基金项目
河北省科技厅重点研发项目(20547601D) （20547601D）
