Replaceable shearing-type energy-dissipating beam segment-steel deep beam connection structure and installation method thereof

Abstract

The invention discloses a replaceable shearing-type energy-dissipating beam segment-steel deep beam connection structure and an installation method thereof. The middle of a steel deep beam of a traditional steel frame drum structure is equipped with an easily-replaced energy-dissipating beam segment. The steel deep beam and the energy-dissipating beam segment are connected in a splicing manner through a flange spliced board and a web spliced board. The flange spliced board primarily transfers pressure or pulling force caused by bending moment. The web spliced board primarily transfers shearingforce so that bending and shearing force can be separated. Force transfer is simple and reliable. After an earthquake, the badly-damaged energy-dissipating beam segment is detached and replaced witha novel energy-dissipating beam segment. Then, on-site splicing is performed. As a result, the post-earthquake function of the structure is restored. Under horizontal load effect, the part of the steel deep beam does not have a stress concentration area and is always kept in elastic state or partially develops plasticity. Therefore, plastic deformation performance of the energy-dissipating beam segment is fully leveraged. The end part of the steel deep beam is replaced. The plastic energy dissipation is avoided. As a result, an energy-dissipating mechanism of the traditional steel frame drum structure is changed. The structure enjoys a good capability of dissipating energy.

Description

technical field [0001] The invention belongs to the field of structural engineering and structural anti-seismic, and in particular relates to a replaceable shear type energy dissipation beam section-steel deep beam connection structure and an installation method. Background technique [0002] The steel frame tube structure is a tube structure formed by dense columns and deep beams on the periphery, floor slabs and a small number of columns inside. This structure has the advantages of high lateral rigidity, good torsional performance, full use of the overall space function and relatively flexible architectural layout. However, since the column spacing of the outer frame of the steel frame tube structure is very small (generally about 3-4m), and the section height of the steel deep beam is relatively large (generally about 0.6m-1.2m), the span height of the steel deep beam is relatively small, and the beam The large gradient of bending moment at the end limits the development ...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above disadvantages, to provide a replaceable shear type energy-dissipating beam section-steel deep beam connection structure and installation method, the structural force transmission is reliable under the earthquake, and the residual deformation after the earthquake is small, easy to implement Replacement of energy-dissipating beam sections. After the earthquake, only the severely damaged energy-dissipating beam sections need to be replaced to quickly restore the function of the structure, thereby improving the problem of poor seismic performance of traditional steel frame tube structures

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