Seismic strengthening device for beam column node area

Abstract

The invention discloses a seismic strengthening device for a beam column node area. A first steel plate (2.1) is fixed on two side walls and a bottom surface of a first cross beam (1) of each section of the beam column node area respectively, a second steel plate (2.2) is fixed on two side walls and a bottom surface of a second cross beam (3) of each section of the beam column node area respectively, a third steel plate (2.3) is fixed on four side walls of an upright post (4) of each section of the beam column node area respectively, a fourth steel plate is fixed on the top surface of a floor slab (5) of the beam column node area, and a fifth steel plate (2.5) is fixed on the bottom surface of the floor slab (5) of the beam column node area; and in the steel plates (2), every two adjacent and vertical steel plates (2) are mutually welded. The seismic strengthening device for the beam column node area has ideal bearing capacity and deformation resistance.

Description

technical field [0001] The invention relates to a civil engineering structure, in particular to an anti-seismic reinforcing device for beam-column node areas. Background technique [0002] In recent years, the occurrence of earthquake disasters has become more and more frequent, which has brought huge loss of life and property and mental damage to human society. In order to alleviate the damage caused by the earthquake, before the earthquake, people need to strengthen the beam-column joints of the buildings in the earthquake-prone areas; after the earthquake, people also need to strengthen the beam-column joints of the moderately damaged buildings Treatment to repair the damage, so that the building can continue to be used and ensure structural safety, avoiding unnecessary waste caused by dismantling and rebuilding. [0003] In the construction industry, the part where the building's columns and beams are combined is called a beam-column node. Each beam-column node specific...

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Problems solved by technology

[0006] But the anti-seismic strengthening device of the beam-column joint area of ​​the above prior art has the following defects: due to the complex structure of the beam-column joint area, the reinforcement device is not enough for the restraint and support of the beam-column joint area, so that the bearing capacity and the strength of the beam-column joint area The ability to resist deformation (that is, stiffness) is insufficient, and there is a hidden danger of building collapse; secondly, the stress situation in the beam-column joint area is also more complicated, often bearing pressure, shear force, bending moment, etc., but due to the damper and ear The plate is fixedly connected, the damper can only relieve the pressure consistent with the axial direction of the damper, and the ability to bear shear force and bending moment is poor, so the connection between the damper and the beam-column node area is easily damaged, making the entire seismic The reinforcing device failed and even caused the house to collapse

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