摘要
大体积砼因水化热升温导致裂缝是当前砼工程的一大难题。本文以水泥发热的动态过程及传热学基本公式确立了微分方程 ,解出了砼内任一点的温度龄期关系式 ;得出了厚板型砼内外温差及截面的温差应力 ,解决了底板型大体积砼的温度裂缝问题。
Temperature crack in voluminaus concrete is an important subject in concrete engineering. The paper created differential eguation, basicly thermodynamic formula, soluted temperature -age curve in any point and obtained diffrence between internal and surfact temperature in deeper plate and temperature stress on cross section to solute this problem.
出处
《北京建筑工程学院学报》
2002年第4期91-96,共6页
Journal of Beijing Institute of Civil Engineering and Architecture
关键词
应力
散热速度系数
绝热温升
水化
水利工程
底板型大体积混凝土
voluminous concrete on base plate
hydraulic heat-age curve. total value of hydraulic heat
speed coefficient for hydraulic heat
speed coefficient of heat for emission. rising temperature in heat insulation
figure-table method.
