Subway station damping beam column joint with high durability and construction method thereof

Abstract

The invention discloses a subway station damping beam column joint with high durability and a construction method thereof. The damping beam column joint is arranged between the column end of a middle column of a subway station and a corresponding top longitudinal beam and between corresponding middle longitudinal beams; and each damping beam-column joint comprises an elastic support connecting system, an elastic support and a protection structure, wherein the elastic support connecting system and the elastic support are matched. During construction, firstly, reserving and pre-burying of corresponding damping beam column joints on the middle longitudinal beam are completed; after a bottom plate, the middle columns of the lower two layers, side walls, a middle plate and the middle longitudinal beams are built back, pre-connection of the elastic supports and damping beam column joints between the middle longitudinal beams and the corresponding middle columns are completed; then, reserving and pre-burying of the corresponding damping beam column joints on the top longitudinal beams are completed; and after the middle columns, the side walls, a top plate and the top longitudinal beams of the next layer are built back, pre-connection of the elastic supports and damping beam column joints between the top longitudinal beams and the corresponding middle columns are completed. According to the subway station damping beam column joint, effective transmission of loads and stability of beam-column joints can be guaranteed, and the durability problem of a flexible support or a damping support can be solved.

Description

technical field [0001] The invention relates to the field of subway anti-seismic technology, in particular to a seismic-absorbing beam-column joint of a subway station with high durability and a construction method thereof. Background technique [0002] For a long time, it has been generally believed that subway stations are less harmful to earthquakes because they are buried in the soil. However, the existing earthquake damage shows that the existing subway station structure type is not safe when a strong earthquake disaster occurs. For example, the 1995 Hanshin Ms7.2 earthquake in Japan caused the most serious damage to the Kobe City subway, underground businesses, and tunnels in history. Among them, the most notable is the destruction of five subway stations. Dakai Station is the most severely damaged subway station. More than 50% of the central pillars completely collapsed, directly causing the roof to break and damage and the overlying soil to collapse. The maximum se...

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned defects of the prior art, the present invention proposes both high-durability subway station shock-absorbing beam-column joints and its construction method. Some flexible bearings made of elastic materials such as rubber or complex shock absorbing bearings composed of metal material parts do not consider the durability problems caused by the alternating wet and dry environment of subway underground stations

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