摘要
采用应变计(组)只能监测应变计埋设方向的坝体内部混凝土应变,工程应用中需要把监测成果转换为徐变应力。通过对转换方法——应力增量法进行改进,增加主应力计算,并基于MATLAB编写计算及绘图程序。把程序应用到金安桥水电站碾压混凝土重力坝,可方便快捷地得到测点各监测时刻的应力状态及时程曲线。实践结果表明,该程序快捷、有效,值得推广。
The strain gauge（s） within dam concrete can only monitor the strain（s） on the direction of buried gauge, and in engineering practice, the monitoring data need to be converted to creep stress. The conversion is based on the creep test of strain gauge（s）. The Stress Increment Method used for the data conversion was improved and the principal stress calculation was increased. MATLAB-based program package of computing and graphics for data conversion was developed. After applying the package to Jin＇anqiao RCC gravity dam, the time-history curve of stress can be quickly and easily represented by graphics. The practice shows that the program is effective.
出处
《水力发电》
北大核心
2011年第1期92-94,共3页
Water Power
