Combined seismic mitigation and isolation structure of high-pile wharf and construction method of combined seismic mitigation and isolation structure

The invention discloses a combined seismic mitigation and isolation structure of a high-pile wharf and a construction method of the combined seismic mitigation and isolation structure, and belongs to the technical field of port engineering seismic mitigation. The upper end of a pipe pile is connected to a pile cap, the outer end of the joint of the pile cap and the pipe pile is sleeved with an annular multi-directional spring, the upper end of the pile cap is connected to a deck through a shock insulation support, the side of the pile cap is connected to the deck through an oil damper, the construction method comprises the following steps that the pipe pile is installed, the annular multi-directional spring is installed on an annular stiffening rib of the corresponding pipe pile, the pile cap and the corresponding pipe pile are connected and installed, the pile cap is connected to the deck through the oil damper, the shock insulation support is connected to the pile cap, deck construction is conducted, and th