Low-frequency damping square nine-hole pile earthquake meta-structure

The invention discloses a low-frequency damping square nine-hole pile earthquake meta-structure. The earthquake meta-structure is mainly composed of a thin-wall steel pipe, a rubber column and a concrete layer, and is simple in structural construction. Arrangement of the designed earthquake meta-structure can be arranged in a segmented and circumferential mode along a building according to the site environment and geological conditions of the building, and the building is fully and effectively protected. The earthquake meta-structure is a periodic structure designed based on the phononic crystal theory, and has a band gap characteristic. When earthquake surface waves come, the earthquake surface waves in a band gap range cannot pass through the designed structure. The earthquake meta-structure is arranged around a building and is not connected with the building, and can shield earthquake surface waves remotely, thereby protecting the building. The earthquake meta-structure is not directly connected with the b