The invention provides an on-site damage assessment method for a static test and a thermal strength test of a structure, which comprises the following steps of: obtaining a response parameter-load percentage curve and generalized stiffness data according to results of strain, displacement and force sensors in a pre-test stage of the static test or the thermal strength test or a load test stage; setting a linear segment starting point criterion based on the generalized stiffness data, and determining a linear segment starting point of a response parameter-load percentage curve; in a static test or thermal strength test design load test stage, taking the determined linear segment starting point as a starting point, and re-determining generalized stiffness data; according to the re-determined generalized stiffness data, giving a static test and thermal strength test structure damage early warning criterion, and positioning a damage source in combination with a generalized stiffness phase-load percentage curve form; and according to the re-determined generalized stiffness data, a thermal strength test structure loading protection criterion is given, and then instability or damage of a structure near a loading part is judged.
本发明提供了一种结构静力试验和热强度试验的现场损伤评估方法,包括:根据静力试验或热强度试验的预试验或使用载荷试验阶段中应变、位移和力传感器的结果,得到响应参量‑载荷百分数曲线和广义刚度数据;基于广义刚度数据设定线性段起始点判据,并确定响应参量‑载荷百分数曲线的线性段起始点;在静力试验或热强度试验设计载荷试验阶段,以确定的线性段起始点为起点,重新确定广义刚度数据;根据重新确定后的广义刚度数据,给出静力试验和热强度试验结构损伤预警判据,结合广义刚度相位‑载荷百分数曲线形态定位损伤源;根据重新确定后的广义刚度数据,给出热强度试验结构加载保护判据,进而判断加载部位附近结构的失稳或损伤。
Field damage assessment method for structure static test and thermal strength test
一种结构静力试验和热强度试验的现场损伤评估方法
2022-04-26
Patent
Elektronische Ressource
Chinesisch
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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