The Measure Technology of the Structure Stress during the Weighing Process of the Large Structure

Abstract

The structure needs to be lifted-off from the ground during the weighing progress. For that the weighing fulcrum and the building fulcrum are different and the building fulcrum is fewer usually and the weighing system has some asynchronism during the lifting process of the structure, it is very important to measure the stress of the key points of the structure during the weighing progress. The paper uses finite element analysis to get the stress sensitive of the weighing device while weighing and uses the optical fiber sensor technology to measure the dynamic stress. Through the experiment with the weighing test bench show that the optical fiber sensor technology has a clear advantage to the traditional resistance strain gauge technique.