CN206128340U - Can overcome soft steel attenuator dismantled of membrane effect - Google Patents

Abstract

The utility model discloses a detachable mild steel damper capable of overcoming the film effect, which comprises an energy-dissipating steel plate (1) and a slotted connecting plate (2), and is characterized in that: the upper and lower two of the energy-dissipating steel plate (1) The ends are respectively embedded in the opening slots of the corresponding upper slotted connecting plate (2) and lower slotted connecting plate (3), and the pressure plate (4) fixes the lower end of the energy-dissipating steel plate (1) to the corresponding lower slotted slot in the open slot of the slot connection plate (3). The connection mode of the energy-dissipating steel plate and the slotted connecting plate adopted by the utility model can not only overcome the film effect of the curved mild steel damper, thereby improving the fatigue resistance of the curved mild steel damper, but also facilitate the disassembly of the energy-consuming steel plate , which is beneficial to the maintenance of the damper; through the selection of energy-dissipating steel plates of different materials and thicknesses and changing the cross-sectional area of the opening slot, the mild steel damper has simple and easy-to-modify performance to meet various needs.

Description

A removable mild steel damper capable of overcoming the membrane effect

technical field

The utility model relates to the technical field of dampers, in particular to a detachable mild steel damper which can be easily processed and produced, easily installed and disassembled and can overcome the film effect.

Background technique

Metal damper is a relatively common energy dissipation device in engineering structures. This type of damper uses the excellent elastic-plastic properties of metal materials (such as mild steel, etc.), and through reasonable design of its structural form and mechanical parameters, it can first yield and consume energy when the engineering structure is subjected to external actions (such as earthquake action), thereby ensuring Security of the main structure. Metal dampers can be divided into two types: bending type and shearing type. The bending type metal damper can be connected by bolts or welding, and the shearing type damper can be connected by welding. The performance of the metal damper is affected by its structural structure, geometric size, connection method, manufacturing process and other factors, and the performance of the metal damper under different design conditions is also quite different.

At present, there are still many defects in the design and performance of the curved metal damper: 1) For the existing curved mild steel damper, the upper and lower ends of the energy-dissipating steel plate are fixed on the connecting plate, resulting in The thin film effect is produced in the middle, which seriously affects the energy dissipation fatigue performance of the damper; once the existing metal damper is used, its disassembly requires the dismantling of the entire damper, which will cause inconvenience and uneconomical construction; 2) if the existing metal damper is used The energy dissipation mechanism of metal dampers is single, and most of them cannot meet the requirements of small earthquakes and large earthquakes at the same time; During small earthquakes, it is in an elastic state, with too little or no energy consumption; the other part of the damper has a small yield displacement, which can meet the yield energy consumption during small earthquakes. It also has better energy dissipation and ductility performance during large earthquakes, but This type of damper often adds a large rigidity to the structure, which leads to an increase in the seismic action effect, which is not conducive to the seismic resistance of the structure. In addition, a small number of metal dampers have been improved and developed to have the ability to yield in stages, but they consume a lot of labor and financial resources because of the complicated size design of the energy-dissipating steel sheets and the inconvenience of installation.

Contents of the invention

The purpose of the utility model is to provide a detachable mild steel damper which can overcome the film effect and is easy to process and produce, easy to install and disassemble, and to solve the problems existing in the prior art.

The purpose of this utility model is solved by the following technical solutions:

A detachable mild steel damper capable of overcoming the film effect, comprising an energy-dissipating steel plate and a slotted connection plate, characterized in that the upper and lower ends of the energy-dissipating steel plate are respectively embedded in the corresponding upper slotted connecting plate and the lower opening The opening slot of the slot connecting plate, and the pressure plate fixes the lower end of the energy dissipation steel plate in the opening slot of the corresponding lower slot connecting plate through bolts.

The upper end of the energy-dissipating steel plate is embedded in the opening groove of the upper slotted connecting plate and can move relative to the upper slotted connecting plate.

The cross-sectional area of the opening groove of the upper slotted connecting plate is not smaller than the cross-sectional area of the upper end of the energy-dissipating steel plate.

The energy-dissipating steel plate includes a first energy-dissipating steel plate and a second energy-dissipating steel plate, and the first energy-dissipating steel plate and the second energy-dissipating steel plate are collectively arranged between the upper slotted connecting plate and the lower slotted connecting plate respectively.

The materials of the first energy-dissipating steel plate and the second energy-dissipating steel plate are different when the size is the same.

When the materials of the first energy-dissipating steel plate and the second energy-dissipating steel plate are the same, their thicknesses are different.

The energy-dissipating steel plates are X-shaped, double-X-shaped, diamond-shaped, triangular, rectangular or rectangular steel plates with holes in the middle.

Compared with the prior art, the utility model has the following advantages:

The connection mode of the energy-dissipating steel plate and the slotted connecting plate adopted by the utility model can not only overcome the film effect of the curved mild steel damper, thereby improving the fatigue resistance of the curved mild steel damper, but also facilitate the disassembly of the energy-consuming steel plate , which is beneficial to the maintenance of the damper; using the proportional relationship between the yield displacement of the energy-dissipating steel plate and the material strength of the energy-dissipating steel plate, two kinds of energy-dissipating steel plates with different yield strengths are designed, and the two work together to ensure the damper under small and large earthquakes Yield in stages: Utilizing the proportional relationship between the yield displacement of the energy-dissipating steel plate and the thickness of the energy-dissipating steel plate, two kinds of energy-dissipating steel plates with different yield strengths are designed, and the two work together to ensure that the damper yields in stages under small and large earthquakes; In addition, the yield displacement of the second stage is controlled by simply changing the cross-sectional area of the opening slot, so that the mild steel damper has simple and easy-to-modify performance to meet various needs.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the detachable mild steel damper that can overcome membrane effect of the present utility model;

Accompanying drawing 2 is the explosive structure diagram of the detachable mild steel damper capable of overcoming the membrane effect of the utility model.

Among them: 1—energy-dissipating steel plate; 2—upper slotted connecting plate; 3—lower slotted connecting plate; 4—pressure plate.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1-2: a detachable mild steel damper that can overcome the film effect, including energy dissipation steel plate 1 and slotted connecting plate 2, the upper and lower ends of energy dissipation steel plate 1 are respectively embedded in the corresponding upper slots In the open slots of the connecting plate 2 and the lower slotted connecting plate 3, and the pressure plate 4 fixes the lower end of the energy dissipation steel plate 1 in the corresponding opening slot of the lower slotted connecting plate 3 through bolts; the upper end of the energy dissipating steel plate 1 is embedded In the opening slot of the upper slotted connecting plate 2 and can move relative to the upper slotted connecting plate 2; the above connection method can not only effectively overcome the film effect, but also facilitate the disassembly and installation of the energy-dissipating steel plate 1 . The above-mentioned energy-dissipating steel plate 1 is an X-shaped, double-X-shaped, diamond-shaped, triangular, rectangular or rectangular steel plate with holes in the middle.

On the basis of the above structure, it is also possible to realize staged yield energy dissipation in various ways. The energy dissipation steel plate 1 includes a first energy dissipation steel plate and a second energy dissipation steel plate, and the first energy dissipation steel plate and the second energy dissipation steel plate are respectively Centrally arranged between the upper slotted connecting plate 2 and the lower slotted connecting plate 3 . The specific method is as follows: when the size of the first energy-dissipating steel plate and the second energy-dissipating steel plate are the same, the materials of the two are different; When the material and size of the energy-dissipating steel plate and the second energy-dissipating steel plate are the same, the size of the opening slot of the upper slotted connecting plate 2 and the positional relationship between some steel plates and the opening slot are changed. At this time, the opening of the upper slotted connecting plate 2 The cross-sectional area of the groove is not less than the cross-sectional area of the upper end of the energy-dissipating steel plate 1 .

The embodiment of the utility model is shown in Fig. 1-2. All energy-dissipating steel plates 1 adopt double X-shaped energy-dissipating steel plates to demonstrate the technical solution of the utility model, and the upper slotted connecting plate 2 is connected with the lower slotted plate when in use. The plates 3 are respectively fixed on the corresponding structures, so that the range of movement of the upper end of the energy dissipation steel plate 1 in the opening groove of the upper slotted connecting plate 2 is limited and will not fall off.

The connection mode of the energy-dissipating steel plate 1 and the slotted connecting plate adopted by the utility model can not only overcome the film effect of the curved mild steel damper, thereby improving the fatigue resistance of the curved mild steel damper, but also facilitate the energy-dissipating steel plate 1 The disassembly of the energy-dissipating steel plate 1 is beneficial to the maintenance of the damper; using the proportional relationship between the yield displacement of the energy-dissipating steel plate 1 and the material strength of the energy-dissipating steel plate 1, two kinds of energy-dissipating steel plates 1 with different yield strengths are designed, and the two work together to ensure that the damper is small. Yield in stages under earthquakes and large earthquakes; using the proportional relationship between the yield displacement of the energy-dissipating steel plate 1 and the thickness of the energy-dissipating steel plate 1, two kinds of energy-dissipating steel plates 1 with different yield strengths are designed. and large earthquakes to yield in stages; in addition, by simply changing the cross-sectional area of the opening slot to control the second-stage yield displacement, the mild steel damper has simple and easy-to-modify performance to meet various needs.

The above embodiments are only to illustrate the technical ideas of the utility model, and cannot limit the protection scope of the utility model with this. Any changes made on the basis of the technical solutions according to the technical ideas proposed by the utility model all fall into the scope of the utility model. Within the scope of protection of the new model; technologies not involved in the utility model can be realized by prior art.

Claims (7)

1. a kind of detachable mild steel damper that can overcome film effect, including Wasted-energy steel plate（1）With fluting connecting plate（2）, It is characterized in that：The Wasted-energy steel plate（1）Upper and lower ends be respectively embedded into the upper fluting connecting plate being correspondingly arranged（2）With lower fluting Connecting plate（3）Open slot in, and pressing plate（4）By bolt by Wasted-energy steel plate（1）Lower end be fixed on it is corresponding it is lower fluting connect Fishplate bar（3）Open slot in.

2. the detachable mild steel damper that can overcome film effect according to claim 1, it is characterised in that：The consumption Can steel plate（1）Upper end be embedded in fluting connecting plate（2）Open slot in and being capable of relatively upper fluting connecting plate（2）Activity.

3. the detachable mild steel damper that can overcome film effect according to claim 2, it is characterised in that：Described Upper fluting connecting plate（2）The sectional area of open slot is not less than Wasted-energy steel plate（1）The sectional area of upper end.

4. the detachable mild steel damper that can overcome film effect according to claim 1 and 2, it is characterised in that：Institute The Wasted-energy steel plate stated（1）Divide including the first Wasted-energy steel plate and the second Wasted-energy steel plate, and the first Wasted-energy steel plate and the second Wasted-energy steel plate Other concentrated setting is in upper fluting connecting plate（2）With lower fluting connecting plate（3）Between.

5. the detachable mild steel damper that can overcome film effect according to claim 4, it is characterised in that：Described One Wasted-energy steel plate and the second Wasted-energy steel plate it is equivalently-sized when both material it is different.

6. the detachable mild steel damper that can overcome film effect according to claim 4, it is characterised in that：Described Thickness both when the material of one Wasted-energy steel plate and the second Wasted-energy steel plate is identical is different.

7. the detachable mild steel damper that can overcome film effect according to claim 1 and 2, it is characterised in that：Institute The Wasted-energy steel plate stated（1）For X-shaped, double X-type, rhombus, triangle, rectangle or central aperture rectangular steel plates.