Energy dissipation body structure of elevated single-column station

Abstract

The invention discloses an energy dissipation body structure of an elevated single-column station. The energy dissipation body structure comprises energy dissipation pier studs, a bottom layer anti-buckling supporting frame, in-axillary additional anti-buckling supporting cantilever transfer girders and a two-layer shearing coupling beam eccentric supporting frame which are all used for providingadditional rigidity when the earthquake magnitude is smaller than or equal to the preset earthquake magnitude and enter a yield state from an elastic state to plastically deform so as to consume partof input energy of an earthquake independently or in freedom cooperation with one another when the earthquake magnitude is larger than the preset earthquake magnitude. The energy dissipation body structure is suitable for the elevated single-column station; for the same type of irregular structure, some energy dissipation sub-structure in the energy dissipation body structure can also be adopted in the similar anti-seismic weak link, and therefore the anti-seismic performance and after-disaster restorability of the energy dissipation body structure are improved, and the energy dissipation bodystructure has good popularization prospects.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to an energy-dissipating and shock-absorbing structure of an elevated single-column station. Background technique [0002] Such as figure 1 As shown, in order not to affect the existing urban road traffic, the elevated platform is usually set up at the isolation belt in the middle of the road. The lower bridge structure adopts the form of a single column in the middle of the road in the longitudinal direction, and the pier columns extend out cantilevered cover beams along both sides to serve as the station building. The support system of the building structure, generally the first floor cover beam supports the station hall floor, the upper floor cover beam supports the platform floor, and the station as a whole forms a single-column long cantilever structure system in the shape of a "dry". Although this type of structure can efficiently utilize the urban building spa...

AI Technical Summary

Problems solved by technology

This design method relies heavily on the deformation capacity and hysteretic energy dissipation characteristics of the main structural members after entering the elastic-plastic stage, and is a passive anti-seismic countermeasure: in order to ensure the energy dissipation capacity of the plastic hinge area, it is often necessary to increase the cross-section of the member or increase the Cross-section reinforcement, which not only consumes building materials and occupies the usable area of ​​the structure, but also increases the structural quality and stiffness may also lead to the enhancement of earthquake action, and does not have the ability to actively adjust

Once these key main structures that store and consume seismic energy input are damaged or destroyed under strong earthquakes, the overall seismic performance of the structural system will be seriously affected, and the high difficulty of its maintenance and replacement is not easy to meet the requirements proposed in the field of earthquake resistance and disaster reduction in recent years. Structural performance requirements for "post-earthquake functional restorability"

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