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

A technology for subway stations and seismic beams and columns, which is used in earthquake prevention, artificial islands, water conservancy projects, etc., can solve the problems of unconsidered shock absorbers and difficult durability, so as to improve shear deformation resistance and avoid shear compression damage. , the effect of good economic and social benefits

Inactive Publication Date: 2021-10-08
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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  • Abstract
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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

Method used

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

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Embodiment

[0045] Such as Figure 1 to Figure 5 As shown, taking into account the high-durability subway station shock-absorbing beam-column nodes, the shock-absorbing beam-column nodes 4 are set between the column end of each middle column 3 and the corresponding top longitudinal beam 9 of the subway station, and the corresponding middle longitudinal beam 6 between;

[0046] Each shock-absorbing beam-column node 4 includes a matching elastic bearing connection system and elastic bearing 15, as well as a protective structure;

[0047] Each elastic support connection system includes steel bar connectors 23, embedded steel plates 12, embedded column anchor bars 14 and embedded anchor bolts 18 arranged at the ends of the corresponding middle columns 3, and installed on the corresponding top longitudinal beams. 9 or the corresponding steel bar connector 23 at the bottom of the longitudinal beam 6, the embedded steel plate 12, the embedded beam anchor bar 13 and the embedded anchor bolt 18; ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/00E04B1/21E04B1/98E04H9/02E04B1/41
CPCE02D29/04E04B1/21E04B1/98E04H9/021E04B1/41E04B1/215E04H9/025
Inventor 张中杰刘书陈加核吴航郑雅莉
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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