Method for measuring stress characteristics of hydropower station unit

The invention relates to a method for measuring stress characteristics of a hydropower station unit, which comprises the following steps of: 1, determining a measuring point of the unit, and processing the measuring point; secondly, when the unit is static, strain gauges are arranged on all the measuring points, the strain gauges are connected with a strain gauge through signal collection shielding lines, and balance zero setting processing is conducted on the strain gauge; and 3, carrying out multiple tests on the unit, enabling the unit to run and cause deformation, enabling the resistance of the strain gauge to change, enabling the strain gauge to measure the resistance change and output a strain value, calculating a stress value according to the strain value through Hooke's law, and comparing the stress value with the allowable stress of the material of the unit. According to the technical scheme, the measuring points of the unit are determined and processed, the strain gauges are arranged on the measurin