Buckling-restrained shearing steel plate energy dissipation device with clamping plates

Abstract

The invention discloses a buckling-restrained shearing steel plate energy dissipation device with clamping plates. The energy dissipation device comprises a core energy dissipation component, a buckling-restrained device, a top plate and a bottom plate, the core energy dissipation component is a rectangular energy dissipation steel plate, the top plate and the bottom plate are fixedly connected at the upper end and the lower end of the rectangular energy dissipation steel plate respectively, the buckling-restrained device comprises two clamping plates, four guide trough plates and stiffening ribs, the two clamping plates are arranged on the front side and the rear side of the rectangular energy dissipation steel plate respectively, the upper ends of the two clamping plates are fixed with the top plate, the four guide trough plates are fixed on the bottom plate and limit movement of the lower ends of the two clamping plates respectively, and the stiffening ribs are arranged on one lateral surface, departing from the rectangular energy dissipation steel plate, of each clamping plate. By the buckling-restrained shearing steel plate energy dissipation device with the clamping plates, slotting or punching of the core energy dissipation component can be avoided, and the stiffening ribs can be prevented from being directly welded on the core energy dissipation component. By the aid of the buckling-restrained device, out-of-plane deformation of the core energy dissipation component can be limited effectively, bearing capacity is enhanced, and hysteretic behavior is improved.

Description

technical field [0001] The invention relates to a shock absorbing device for an engineering structure, in particular to a splint anti-buckling shear steel plate energy dissipator, which belongs to the technology of energy dissipation, shock absorption and vibration control of engineering structures. Background technique [0002] The energy dissipation and shock absorption technology of engineering structures is to install energy dissipation devices in certain parts of the structure, and to dissipate or absorb the energy input into the structure through the hysteretic deformation of the energy dissipation devices, so as to reduce the seismic response of the main structure, thereby avoiding The structure is damaged or collapsed to achieve the purpose of shock absorption control. The shear plate energy dissipator is a common energy dissipation device. When the thin steel plate is sheared in the plane, it is easy to buckle out of the plane, the bearing capacity is unstable, and ...

AI Technical Summary

Problems solved by technology

The shear plate energy dissipator is a common energy dissipation device. When the thin steel plate is sheared in the plane, it is easy to buckle out of the plane, the bearing capacity is unstable, and the "pinch phenomenon" of the hysteresis curve (such as Figure 4 , Figure 5 , Image 6 Shown) Seriously, affecting energy consumption capacity

At present, there are two main solutions to solve the out-of-plane buckling of the shear plate energy dissipator: one is to directly weld cross-shaped or cross-shaped stiffeners on the steel plate, which will generate residual stress and residual deformation, reduce the ductility of the steel plate, and the weld often becomes Weak parts; the second is to open vertical seams or holes on the steel plate, so that the overall shear deformation becomes the bending deformation of the columns between the seams, which will weaken the steel plate section, destroy the tension field, and lead to a decrease in the bearing capacity and stiffness of the steel plate; therefore, It is necessary to develop a new anti-buckling scheme, which can effectively limit the out-of-plane buckling of the steel plate and avoid the shortcomings of the above two schemes

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