摘要
以运宝黄河大桥副桥11号墩墩底段为研究对象,建立其有限元几何模型,分析了正弦函数拟合环境温度的合理性,并采用正弦函数拟合环境温度分析了环境温度变化幅度和迟延时间两个参数对墩底段温度场和应力场的影响。研究结果表明:环境温度变化采用正弦函数拟合,可以较为精确地模拟墩底段的温度场和应力场;环境温度的变化幅度越大,墩底的内外温差和温度应力越大;迟延时间对墩底的内外温差影响不明显。该研究成果可为相似工程提供参考。
Taking the bottom section of the No.11 pier of the auxiliary bridge of the Yunbao Yellow River Bridge as the research object,the finite element geometric model is established,the rationality of sinusoidal function fitting the ambient temperature is analyzed.The influence of the two parameters of amplitude and delay time on the temperature field and stress field at the bottom of the pier is analyzed according to the ambient temperature from the sine function fitting.The research results show that the temperature field and stress field at the pier bottom can be accurately simulated by sinusoidal function fitting.The greater the range of the ambient temperature changes,the greater the temperature difference and temperature stress between the inside and outside of the pier bottom will be.The influence of the temperature difference between the inside and outside of the pier bottom is not obvious.The research results can provide references for similar projects.
作者
王国炜
张国梁
唐杨
刘全勋
佘东升
WANG Guowei;ZHANG Guoliang;TANG Yang;LIU Quanxun;SHE Dongsheng(Jinan Jinqu Road Survey Design Research Co.,Ltd.,Jinan 250101,China;Shandong Road and Bridge Engineering Design Consulting Co.,Ltd.,Jinan 250014,China;Countryside Highway Administration Bureau of Wufeng Tujia Autonomous County,Yichang 443413,China;Shandong Zhuolian Engineering Consulting Co.,Ltd.,Jinan 250014,China)
出处
《中原工学院学报》
CAS
2021年第4期38-43,共6页
Journal of Zhongyuan University of Technology
关键词
水化热
环境温度
内外温差
温度应力
hydration heat
ambient temperature
inside and outside temperature difference
temperature stress
作者简介
王国炜(1978-),男,正高级工程师,研究方向为道路勘察设计。E-mail:849596477@qq.com
