Static test method for actual rigidity of bridge rubber support

The invention discloses a static test method for the actual rigidity of a bridge rubber support, and the method comprises the steps: firstly placing a to-be-tested support at the bottoms of two ends of an equal-rigidity beam, and forming a simply supported beam stress system; then, applying concentrated force to the midspan section or the vicinity of the midspan section of the simply supported beam, testing vertical displacement of the beam at different positions under the concentrated force, and constructing a displacement curve of the beam according to the displacement data. And finally, according to the relationship between the displacement curve and the beam internal force, performing deriving to obtain the rigidity value of the boundary in combination with the definition of the rigidity, thereby indirectly obtaining the vertical support and rotational rigidity of the support. Compared with a mechanical property test of an existing bridge support, the actual vertical supporting rigidity and the rotating r