The invention provides a compression-shear separated
type variable-rigidity rubber support and a construction method thereof. The compression-shear separated
type variable-rigidity rubber support comprises a support upper plate, a support lower plate and shock isolating assemblies arranged between the support upper plate and the support lower plate. The shock isolating assemblies comprises vertical shock isolating assemblies and a horizontal shock isolating
assembly. Each vertical shock isolating
assembly comprises a long vertical spring, a short vertical spring, a
damper, a limiting stop groove and a limiting baffle. The horizontal shock isolating
assembly comprises a group of vertical steel rods, a second viscous fluid, a rubber body and interlayer
steel plates. The compression-shear separated
type variable-rigidity rubber support is simple in structure, the
machining technology is concise, all the components are easy to obtain and assemble, installation is convenient, and the performance-cost ratio is high. All the portions of the support adopt
metal materials, so that the durability is good; meanwhile, the
stress path is clear,
vertical force and
horizontal force are independently borne by different portions of the support, so that compression-shear separation can be effectively achieved, and the energy dissipating capacity and the self-resetting capacity are high. The vertical rigidity and the horizontal rigidity of the support are both adjustable, variable and controllable, so that shock isolation and displacement limitation under different seismic oscillations are achieved.