混凝土热学参数的组合分析方法及其应用  

The Combined Analysis Method of Concrete Thermal Parameters and Its Application

作　　者：徐庆[1] 黄达海[2] 杨宪元[1] 欧阳建树[1] 刘心庭[1] 

机构地区：[1]三峡大学土木水电学院,湖北宜昌443002 [2]北京航空航天大学交通科学与工程学院,北京100191

出　　处：《云南水力发电》2009年第5期83-86,共4页Yunnan Water Power

摘　　要：混凝土热学参数,对于混凝土结构温度场的仿真计算及温控预报,具有重要作用。文章利用正分析与反分析相结合的方法,在原有的三维温度场仿真计算程序的基础上,结合遗传算法寻求非线性反演问题全局最优解。通过若干点温度实测值便可实现导温系数、绝热温升及表面放热系数等的同时反演。以工程实例给出了这种方法的实用性与准确性的证明。Concrete thermal parameters are of great importance to temperature field simulation calculation and temperature control forecasting of a concrete structure.The article uses the analysis and back analysis combined method to find out a global optical solution to the non-linear inversion problem based on the primary 3-dimentional temperature field simulation program,taking into account the genetic algorithm.The temperature values measured at a number of points enable the inversion of temperature conduction coefficient and adiabatic temperature rise and surface heat emission coefficients to be realized. Both practicability and accuracy of this method have been verified by citing examples of engineering projects in the article.

关 键 词：正分析 反演分析 遗传算法 热学参数 

分 类 号：TV431[水利工程—水工结构工程]