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Low-yield-point steel buckling-restrained shearing plate damper

A low-yield point steel and anti-buckling technology, which is applied in the direction of earthquake resistance and building components, can solve problems such as excessive out-of-plane buckling and affect the energy dissipation performance of the damper, and achieve small out-of-plane buckling, large plastic deformation capacity, and hysteresis Full back curve effect

Inactive Publication Date: 2014-04-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As an energy-dissipating element of a multi-story steel frame, the traditional low-yield-point steel shear plate damper has good energy-dissipating performance, but it will produce excessive out-of-plane buckling at a large height-to-thickness ratio, which is very large. The degree of influence on the energy dissipation performance of the damper

Method used

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  • Low-yield-point steel buckling-restrained shearing plate damper

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Embodiment 1

[0019] A steel buckling-resistant shear plate damper with a low yield point, comprising a core steel plate 7, a transverse buckling-resistant stiffener 5, a vertical buckling-resistant stiffener 6, a left flange plate 2, a right flange plate 3, and an upper flange The plate 1 and the lower flange plate 4, the core steel plate 7 are respectively connected with the left and right flange plates 2, 3 and the upper and lower flange plates 1, 4 through penetration welds, and the short side of the transverse buckling stiffener 5 The two ends are respectively welded to the left and right flange plates 2 and 3, the two ends of the short side of the vertical anti-buckling stiffener 6 are respectively welded to the upper and lower flange plates 1 and 4, and the transverse anti-buckling stiffener 5 and the vertical A certain gap is left between the long sides of the anti-buckling stiffener 6 and the core steel plate 7, and the left and right flange plates 2, 3 are connected with the upper ...

Embodiment 2

[0021] In the low yield point steel buckling shear plate damper, continuous welding should be applied between the core steel plate and the left and right flange plates, and the upper and lower flange plates to minimize the influence of welding on the low yield point core steel plate. The rigidity is small, and four supporting columns should be installed between the upper and lower flange plates of the damper to avoid out-of-plane deformation during transportation and installation, and to keep the steel plate stable and safe. The four columns should be removed after installation column.

[0022] Experiments have proved that the low yield point steel shear plate damper with low yield point proposed by the present invention is an appropriate improvement to the traditional low yield point steel shear plate damper, by setting transverse and vertical anti-buckling stiffeners on both sides of the core plate , the out-of-plane deformation of the damper is well restrained, and a certai...

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Abstract

The invention provides a low-yield-point steel buckling-restrained shearing plate damper which comprises a core steel plate, a transverse buckling-restrained stiffening rib, a vertical buckling-restrained stiffening rib, a left-side flange plate, a right-side flange plate, an upper flange plate and a lower flange plate. The core steel plate is connected with the left-side flange plate, the right-side flange plate, the upper flange plate and the lower flange plate through melting through welds respectively, two ends of a short side of the transverse buckling-restrained stiffening rib are in welded connection with the left-side flange plate and the right-side flange plate respectively, two ends of a short side of the vertical buckling-restrained stiffening rib are in welded connection with the upper flange plate and the lower flange plate respectively, a certain gap is reserved between each of the transverse buckling-restrained stiffening rib and the vertical buckling-restrained stiffening rib and the core steel plate, and the left-side and right-side flange plates are connected with the upper and lower flange plates through melting through welds. The low-yield-point steel buckling-restrained shearing plate damper has the advantages of high initial rigidity, obvious energy consumption in small vibration deformation, small out-of-plane buckling, high plastic deformation capability, full hysteretic curve, good energy-consuming capability and the like, and is an excellent energy-consuming element.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a steel anti-buckling shear plate damper with a low yield point. Background technique [0002] As an energy-dissipating element of a multi-story steel frame, the traditional low-yield-point steel shear plate damper has good energy-dissipating performance, but it will produce excessive out-of-plane buckling at a large height-to-thickness ratio, which is very large. The degree of influence on the energy dissipation performance of the damper. [0003] In order to solve this shortcoming of the traditional low yield point steel shear plate damper, this patent application proposes a new type of shear plate damper, that is, a low yield point steel anti-buckling shear plate damper. By setting horizontal and vertical anti-buckling stiffeners on both sides of the core plate, the out-of-plane deformation of the damper is well restrained, and a certain gap is left between the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98
Inventor 李冀龙李惠欧进萍马宁杨振祥宋中霜
Owner HARBIN INST OF TECH
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