Vertical tensile friction damping composite seismic mitigation and isolation rubber support

The invention belongs to the technical field of civil engineering structure shock absorption, and relates to a vertical tensile friction damping composite shock absorption and isolation rubber support which comprises an upper connecting plate, a lower connecting plate, a shock isolation rubber support and a sliding rail device, and the upper connecting plate and the lower connecting plate are installed on the upper side and the lower side of the shock isolation rubber support respectively; the two groups of sliding rail devices are respectively connected with the upper connecting plate and the lower connecting plate, each sliding rail device comprises a sliding rail, a sliding plate and a pre-tightening bolt which are mutually buckled and matched, a friction plate is arranged on the sliding plate, and a friction sliding groove for accommodating the friction plate is formed in the sliding rail, so that a friction damping mechanism is formed in the sliding rail device; bolt holes used for fixedly installing pre