High-width-span-ratio beam unbalance loading strain test method

The invention relates to the field of static load tests of high-width-span-ratio beam strain. The invention discloses a high-width-span-ratio beam unbalance loading strain test method. The method comprises the following steps: establishing a single-beam-element finite element model of a high-width-span-ratio beam, according to the test method, the torsion angle of the test section of the high-width-span-ratio beam under the eccentric test load and the strain of different vertical positions on the center line of the beam are calculated, the strain values of other test points on the non-center line of the test section are obtained through the geometrical relationship between the torsion center and the strain test points and compared with the actually measured strain, and the strength of thehigh-width-span-ratio beam is judged. The method can effectively reduce the time and labor cost of finite element calculation and reduce energy consumption. The method is applied to the static load test of the high-width-span