CN205077643U - Novel power consumption of no bucking is supported - Google Patents

Abstract

The utility model discloses a novel buckling-free energy consumption support. The utility model adopts two supporting core members with a certain gap in the jacket steel pipe, and connects the jacket steel pipe and the support core member through several energy-dissipating steel plates with slits. Relative displacement, the relative displacement of the supporting core components at both ends will drive the relative displacement of the energy-dissipating steel plate and the outer steel pipe connected to it, and the steel bars between the slits on the energy-dissipating steel plate will be deformed under the action of external force. When the deformation reaches To a certain extent, the steel bar will yield and fail, so that under repeated loads, the steel bar can achieve the purpose of consuming seismic energy through repeated deformation; the damper can change the thickness, length and number of slits of the steel sheet ( Determined by calculation) to adjust the damping stiffness and energy dissipation capacity, thus effectively reducing structural vibration. Compared with the viscoelastic damper, the damper is less affected by excitation frequency and temperature.

Description

New buckling-free energy-dissipating brace

technical field

The utility model relates to the field of building science, in particular to a novel buckling-free energy-consuming support.

Background technique

At present, the development trend of buildings is taller. The frame structure composed of steel components, composite components or reinforced concrete components is a structural form that is often used in buildings. It is often necessary to set energy-dissipating components in the frame structure. Common energy dissipation components include viscous dampers, magnetorheological dampers and metal dampers. Among them, metal dampers are widely used in engineering because of their better durability and economy. However, the metal dampers currently used will deform to varying degrees according to the external forces they need to withstand. When the external force to be borne is large, a large amount of deformation is required, and usually the size is required to be very large, so that processing, transportation and installation are very difficult, and the effect of use is not ideal.

Contents of the invention

The purpose of this utility model is: to provide a new type of non-buckling energy consumption support, which has a simple structure, is very convenient for processing, transportation and installation, and has a remarkable energy consumption effect, and the structural deformation under the action of external force is small, so as to overcome the existing technology. lack of.

The utility model is realized in the following way: the new buckling-free energy-consuming support includes an outer jacket steel pipe, the outer jacket steel pipe is a structure with both ends open, and two supporting core members symmetrically distributed along the axial direction are arranged in the same outer jacket steel pipe; Between each supporting core member and the inner wall of the jacket steel pipe, there are energy-dissipating steel plates symmetrically distributed along the axis, and uniformly distributed energy-dissipating seams are arranged on the energy-dissipating steel plates; one side of the energy-dissipating steel plate is connected to the outer jacket steel pipe On the inner wall, the other side of the energy-dissipating steel plate is connected to the supporting core member; there is an elongated gap between the two supporting core members and their corresponding energy-dissipating steel plates.

2-8 energy-dissipating steel plates are connected to each supporting core member.

The cross-section of the jacket steel pipe is circular or square.

Connection nodes are provided at the outer ends of the supporting core members.

The energy-dissipating steel plate and the jacket steel pipe are bolted or welded; the energy-dissipating steel plate and the supporting core member are bolted or welded.

Due to the adoption of the above technical scheme, compared with the prior art, the utility model adopts two supporting core components with a certain gap in the jacket steel pipe, and connects the jacket steel pipe and the support core member through several energy-dissipating steel plates with slits. When a horizontal earthquake occurs, due to the relative displacement of the upper and lower ends of the damper, the relative displacement of the supporting core components at both ends will drive the relative displacement of the energy-dissipating steel plate connected to it and the outer steel pipe. The steel bars between are deformed under the action of external force. When the deformation reaches a certain level, the steel bars will yield and fail. In this way, under repeated loads, the steel bars can achieve the purpose of consuming earthquake energy through repeated deformations; the damper can By changing the thickness, length and number of slots of the steel sheet (determined by calculation), the damping stiffness and energy dissipation capacity can be adjusted, so that the structural vibration can be effectively reduced. Compared with the viscoelastic damper, the damper is less affected by excitation frequency and temperature. This damper can be installed on various buildings and bridge structures to meet the needs of earthquake resistance and other aspects. It has good economical indicators, easy material acquisition, simple processing, low cost, easy replacement, convenient application, and is convenient for large-scale promotion. The low price can be used for the construction of rural houses in earthquake areas. These advantages enable the friction damper to be widely used in anti-seismic and wind-resistant engineering structures. The method of the utility model is simple and easy to implement, and the adopted device has simple structure, low cost and good use effect.

Description of drawings

Accompanying drawing 1 is the structural representation of the embodiment of the utility model;

Accompanying drawing 2 is A-A sectional view of accompanying drawing 1;

Accompanying drawing 3 is the use schematic diagram of the utility model;

Accompanying drawing 4 is the schematic diagram of the structural deformation of the frame installed with general support under the action of external force;

Accompanying drawing 5 is the schematic diagram of the structural deformation of the frame installed with the new non-buckling energy-dissipating support of the embodiment of the present invention under the action of external force.

detailed description

Embodiment 1 of the present utility model: a new buckling-free energy-dissipating support, including a jacket steel pipe 1, which is a cylindrical structure with both ends open, and two axially symmetrical distributions are arranged in the same jacket steel pipe 1. The supporting core member 4; between each supporting core member 4 and the inner wall of the jacket steel pipe 1, there are four energy-dissipating steel plates 2 symmetrically distributed along the axis, and the four energy-dissipating steel plates 2 are "ten" in cross section Shaped, energy-dissipating seams 3 are evenly distributed on the energy-dissipating steel plate 2; one side of the energy-dissipating steel plate 2 is connected to the inner wall of the jacket steel pipe 1, and the other side of the energy-dissipating steel plate 2 is connected to the supporting core member 4; An elongation gap 5 is provided between the two supporting core members 4 and their corresponding energy-dissipating steel plates 2; a connection node 6 is provided at the outer end of the supporting core member 4; bolts are provided between the energy-dissipating steel plates 2 and the jacket steel pipe 1 Connection: The energy-dissipating steel plate 2 and the supporting core member 4 are connected by bolts. In this embodiment, the supporting core member 4 is made of angle steel.

The installation method of the new non-buckling energy-dissipating support of the utility model in the structure is shown in Figure 3. Under the action of an earthquake, due to the displacement difference between the upper and lower floors of the structure, the new non-buckling energy-dissipating support installed in the structure at this time (hereinafter "Energy dissipation support" for short) is in a state of tension and compression. In order to prevent the overall buckling of the energy dissipation support when it is under compression, the jacket steel pipe 1 increases the overall stiffness inside and outside the plane of the energy dissipation support, thereby improving the overall stiffness of the energy dissipation support. Stable, when the bearing capacity of the energy-dissipating support is determined by the strength, only in this way can the slotted steel plate yield completely under the action of tension and compression loads, and give full play to the energy-dissipating effect of the steel plate. Under the action of tension and compression, the core support member of the energy-dissipating support 4. A force is applied to the energy-dissipating steel plate 2 along the direction of the vertical energy-dissipating seam 3, and the short steel plate between the energy-dissipating seam 3 produces shearing and bending deformation under the action of the horizontal tangential force. When the shear stress and bending stress are equal When the effect stress exceeds the yield stress, the slotted steel plate will produce yield deformation, so as to achieve the purpose of energy dissipation. In this way, under repeated loads, the energy-dissipative steel plate 2 is repeatedly in the state of tensile and compressive yield deformation, so as to consume earthquake energy and protect The purpose of the main structure. Fig. 4 is a schematic diagram of the structural deformation of a frame installed with a general support under the action of an external force, and Fig. 5 is a schematic diagram of the structural deformation of a frame with a new type of non-buckling energy-dissipating support of the embodiment under the action of an external force. It can be seen that the new buckling-free energy-dissipating brace of this embodiment can significantly reduce structural deformation.

Claims (5)

1. one kind novelly supports without energy consuming, comprises outer steel pipe (1), it is characterized in that: the structure that outer steel pipe (1) is open at both ends, be provided with two symmetrical vertically supporting core components (4) in same outer steel pipe (1); Between each supporting core component (4) and the inwall of outer steel pipe (1), be equipped with the Wasted-energy steel plate (2) symmetrical along axle center, Wasted-energy steel plate (2) is provided with equally distributed power consumption seam (3); The side of Wasted-energy steel plate (2) is connected on the inwall of outer steel pipe (1), and the opposite side of Wasted-energy steel plate (2) is connected on supporting core component (4); Elongated slots (5) is provided with between two supporting core components (4) and corresponding Wasted-energy steel plate (2) thereof.

2. according to claim 1 novel without energy consuming support, it is characterized in that: on each supporting core component (4), be connected with 2-8 Wasted-energy steel plate (2).

3. according to claim 1 novel without energy consuming support, it is characterized in that: the cross section of described outer steel pipe (1) is for circular or square.

4. according to claim 1 novel without energy consuming support, it is characterized in that: be provided with connected node (6) in the outer end of supporting core component (4).

5. according to claim 1 novel without energy consuming support, it is characterized in that: for bolt is connected or weld between Wasted-energy steel plate (2) with outer steel pipe (1); For bolt is connected or weld between Wasted-energy steel plate (2) with supporting core component (4).