Method for quickly determining equivalent form of seismic load

The invention belongs to the technical field of earthquake loads, and particularly discloses a method for rapidly determining an earthquake load equivalent form. Comprising the following steps: acquiring a time period with the fastest seismic velocity change according to the maximum positive velocity and the maximum negative velocity of a seismic velocity time history curve; according to the maximum positive velocity and the maximum negative velocity of the earthquake and the physical and mechanical parameters of the rock sample, the maximum positive load and the maximum load of the earthquake load are obtained; calculating the average change rate of the seismic load according to the time period in which the seismic velocity changes fastest; the method comprises the following steps: performing equivalent treatment on seismic waves by taking triangular waves as a basic wave pattern, and acquiring an equivalent form of the seismic load based on the maximum positive load and the maximum load of the seismic load