CN209976061U - Damper for reinforcing beam and column joint and damping structure of beam and column - Google Patents
Damper for reinforcing beam and column joint and damping structure of beam and column Download PDFInfo
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- CN209976061U CN209976061U CN201822141224.0U CN201822141224U CN209976061U CN 209976061 U CN209976061 U CN 209976061U CN 201822141224 U CN201822141224 U CN 201822141224U CN 209976061 U CN209976061 U CN 209976061U
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Abstract
The utility model discloses a shock-absorbing structure that is used for attenuator and roof beam and post of reinforcement beam and post node, including resilient means and two power consumption devices, power consumption device consumes the seismic force at roof beam and post node through the migration of migration, and two power consumption device's both ends are articulated each other, and resilient means installs between two power consumption device, can make resilient means compression or extension when two power consumption device migration warp. The damper adopts two energy dissipation devices made of mild steel, generates plastic deformation under the action of earthquake force, has good hysteretic characteristic after the mild steel enters a plastic state, and absorbs a large amount of energy in the elastic-plastic hysteretic deformation process, so that most of vibration force borne by the beam and the column can be consumed, and the stability of the beam and column nodes is improved; meanwhile, the energy consumption device made of mild steel is easier to process, stable in hysteresis performance, easy to replace and low in manufacturing cost and maintenance cost.
Description
Technical Field
The utility model relates to a building structure technical field and attenuator equipment technical field specifically are a attenuator for reinforcing beam column node.
Background
With the high-speed development of national infrastructure, the requirement on building earthquake resistance is higher and higher, so in order to increase the stability of beam and column nodes, dampers are generally installed at the nodes for consuming the earthquake capacity borne by the beams and columns and improving the stability of the beam and column nodes.
However, existing dampers that reinforce beam and column joints have certain drawbacks in dissipating seismic energy, such as: the existing damper has a complex structure and does not utilize the replacement of a damping replacing component; the energy consumption mechanism is single in application, so that the effect of consuming the seismic energy is not obvious under the action of an earthquake; particularly, when a strong earthquake occurs, the damping member is damaged to cause the structure to collapse instantly, and other damping members do not play a damping role, so that the application of the mild steel damper is limited.
Therefore, it is necessary to develop a damper which is easy to replace, has a significant energy consumption effect, and has a dual damping effect.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a attenuator for consolidating roof beam and post node has solved the plastic deformation problem of roof beam and post node, and under the earthquake action, has dual damping effect, and the power consumption is showing.
The utility model discloses a realize through following technical scheme:
the damper for reinforcing the beam and column nodes comprises an elastic device and two energy consumption devices, wherein the energy consumption devices consume seismic force at the beam and column nodes through hysteresis deformation, two ends of the two energy consumption devices are hinged to each other, the elastic device is installed between the two energy consumption devices, and the two energy consumption devices can be compressed or extended when being subjected to hysteresis deformation.
Optionally, the energy dissipation device is of an arc structure, an included angle formed between the two ends of the arc and the circle center of the arc is smaller than or equal to 90 °, and the end of the elastic device is connected with the arc surface on the inner side of the energy dissipation device.
Optionally, the two energy consuming devices are a first energy consuming device and a second energy consuming device respectively;
the first energy dissipation device comprises an arc-shaped first buffer plate, two ends of the first buffer plate are respectively connected with first connecting plates, a U-shaped groove is formed in the end part of each first connecting plate, and the included angle between the two first connecting plates is 90 degrees;
the second energy consumption device comprises an arc-shaped second buffer plate, the two ends of the second buffer plate are respectively connected with a second connecting plate, the second connecting plates can be assembled in the U-shaped groove of the first connecting plate, and the included angle between the two second connecting plates is 90 degrees.
Optionally, the elastic device is a spring, and two ends of the spring are respectively connected with the first buffer plate and the second buffer plate.
Optionally, two ends of the spring are respectively connected with the first buffer plate and the second buffer plate through fixing devices;
the fixing device comprises a base and a connecting column arranged on the base, the base is fixedly connected with the cambered surface of the buffer plate, and the connecting column is arranged in the spring hole.
Optionally, the end of the second connecting plate is provided with a fixing plate for connecting a beam or a column.
Optionally, the fixing plate is fixed on the beam or the column by a pull rod.
Optionally, the energy consuming device is made of mild steel.
The application also provides a shock absorption structure of the beam and the column, wherein the damper is arranged at each connecting node of the beam and the column.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a attenuator for reinforcing beam and post node, the node position at beam and post is installed to this attenuator, plastic deformation takes place for two power consumption device under the earthquake effort that receives beam and post transmission, and take place relapse relative or relative motion under the effect of hysteresis deformation characteristic, consume the seismic force that beam and post bore, in the motion process that two power consumption device relapse, elastic device receives pulling force or pressure repeatedly, further consume seismic energy, produce dual damping effect through power consumption device and elastic device, the power consumption effect is showing, it leads to the plastic deformation problem to solve beam and post node and receives the shaking force, improve the stability of beam and post node.
The energy dissipation device is of an arc-shaped structure, is simple in structure, can be formed by bending, is easy to manufacture, is hinged with each other, and is simple to replace and low in maintenance cost after an earthquake occurs.
The energy consumption device is made of mild steel materials, and the mild steel has good hysteresis deformation characteristics, can bear large earthquake force and is not easy to damage.
Drawings
Fig. 1 is a schematic structural view of the damper of the present invention;
fig. 2 is a front view of the damper of the present invention;
fig. 3 is a side view of the damper of the present invention;
fig. 4 is a top view of the damper of the present invention;
fig. 5 is a front view of a second energy dissipation plate of the present invention;
fig. 6 is a side view of a second energy dissipating plate according to the present invention;
fig. 7 is a top view of a second energy dissipating plate according to the present invention;
fig. 8 is a schematic structural view of the energy dissipation spring of the present invention;
fig. 9 is a front view of the energy dissipating spring fixing device of the present invention;
fig. 10 is a side view of the energy dissipating spring fixing device of the present invention;
fig. 11 is a top view of the energy dissipating spring fixing device of the present invention;
FIG. 12 is a schematic view of the installation of the damper of the present invention in relation to a beam and column configuration FIG. 1;
fig. 13 is a structural view of the installation of the damper and the beam column of the present invention.
In the figure: 1-a first energy consuming device; 2-a second energy consuming device; 3-an elastic device; 4-a fixing device; 10-a connecting plate; 11-draw bar hole.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
As shown in fig. 1, a damper for reinforcing a beam and column node includes an elastic device and two energy dissipation devices for dissipating seismic energy of the beam and the column, the energy dissipation devices dissipating seismic force at the beam and column node by means of hysteresis deformation, two ends of the two energy dissipation devices are hinged to each other, the elastic device is installed between the two energy dissipation devices, and the two energy dissipation devices can compress or stretch the elastic device.
This attenuator is installed in the node position of roof beam and post, plastic deformation takes place for two power consumption devices under the earthquake effort that receives the roof beam and post transmission, and take place relapse relative or relative motion under the effect of hysteresis deformation characteristic, consume the seismic force that roof beam and post bore, in the motion process that two power consumption devices relapse, resilient means receives pulling force or pressure repeatedly, further consume seismic energy, it leads to the plastic deformation problem to receive the vibrations power to solve the roof beam post node, improve the stability at roof beam and post node.
The two energy consuming devices are the first energy consuming device 1 and the second energy consuming device 2, respectively.
As shown in fig. 2-4, the first energy dissipation device 1 includes an arc-shaped first buffer plate and two first connection plates, the two first connection plates are respectively disposed at two ends of the buffer plate, an included angle between the two first connection plates is a right angle, and an included angle formed between two ends of the buffer plate and a center of the arc-shaped circle is smaller than 90 °. The end part of the first connecting plate is provided with a U-shaped groove used for connecting the second energy consumption device.
The second energy consumption device 2 comprises an arc-shaped second buffer plate, the two ends of the second buffer plate are respectively connected with a second connecting plate, the included angle between the two second connecting plates is a right angle, the first buffer plate and the second buffer plate are identical in structure, and the second connecting plate can be assembled in a U-shaped groove of the first connecting plate.
The first energy consumption device 1 and the second energy consumption device 2 are symmetrically installed, namely the inner side cambered surfaces of the first buffer plate and the second buffer plate are oppositely arranged, and two second connecting plates of the second energy consumption device are respectively installed in a U-shaped groove of a first connecting plate of the first energy consumption device and are hinged through bolts.
When two buffer boards of the first energy consumption device 1 and the second energy consumption device 2 are subjected to high-frequency vibration force conducted by the fixed beam and the fixed column, the buffer boards are made of metal mild steel materials and have certain hysteresis characteristics, and the two buffer boards generate reciprocating stretching deformation and bending deformation under the action of the high-frequency vibration force, so that the high-frequency vibration force conducted by the beam and the column can be offset in the deformation process, and the joint cracking of the beam and the column is prevented.
As shown in fig. 5-7, the end portions of the two connecting plates of the second buffer plate are respectively provided with a fixing plate 10 for connecting with a beam or a column, a plurality of pull rod holes 11 are uniformly distributed on the fixing plate, the two fixing plates are respectively attached to the beam and the column, and the pull rod penetrates through the pull rod holes to fix the fixing plates through bolts.
As shown in fig. 8, the elastic device 3 is a spring, two ends of the spring are fixedly connected with the inner arc surfaces of the first buffer plate and the second buffer plate respectively, two ends of the spring are located at the centers of the two arc surfaces respectively, namely, the axis of the spring coincides with the straight line formed by the circle centers of the first buffer plate and the second buffer plate, the position is the maximum deformation position of the two buffer plates and can also be understood as the maximum stress point, when the arc center position of the buffer plates is deformed, the spring is correspondingly compressed or elongated, and the spring further counteracts the vibration force in the deformation process.
As shown in fig. 9-11, the two ends of the spring 3 are respectively provided with a fixing device 4, which comprises a connecting column on which a base is arranged, the base is fixedly connected with the cambered surface of the buffer plate, the connecting column is installed in the spring hole, a bolt hole is arranged on the connecting column along the radial direction, and a bolt penetrates through the bolt hole to fixedly connect the spring and the connecting column.
The base and the buffer plate are connected in a welding mode, and can be connected in the existing connection modes such as a bolt connection mode or a riveting mode.
As shown in fig. 12 and 13, the present application further provides a beam and column damping structure, which includes a fixed beam, a fixed column and the above damper, wherein the fixed beam is horizontally disposed on top of the fixed column, and one damper is installed at each node of the fixed beam and the fixed column.
A fixing plate 10 at the lower end of a second energy consumption device in the damper is mounted on the side wall of the fixing column through a pull rod, and a fixing plate 10 at the upper end is fixed on the bottom surface of the beam through the pull rod. The side wall of the fixing column and the bottom surface of the beam form a right-angle node.
The damper is used as a main device for reinforcing the joint of the beam and the column and offsetting seismic energy, and when an earthquake occurs, the vibration force is transmitted to the fixed beam along the fixed column, so that the fixed column and the fixed beam vibrate at high frequency, and the fixed beam can also be understood to swing up and down at the top of the fixed column at high frequency.
When the fixed beam swings downwards, the damper receives the pressure of the fixed beam, the first energy consumption device and the second energy consumption device are stressed, the two buffer plates are slightly deformed in a centripetal bending mode, the downward pressure of the fixed beam is offset in the deformation process, meanwhile, the two buffer plates can move relatively when being deformed, namely, the distance between the two buffer plates is enlarged, the spring is extended by the tensile force, and the downward pressure of the fixed beam can be further offset by the spring in the extending process.
When the fixed beam reaches the maximum downward swinging position, the fixed beam swings in the reverse direction, namely the fixed beam swings upward, at the moment, the pressure on the first energy consumption device and the second energy consumption device gradually disappears, at the moment, the buffer plates of the first energy consumption device and the second energy consumption device gradually return under the action of hysteresis characteristics until the fixed beam reaches a horizontal state, and the buffer plates of the first energy consumption device and the second energy consumption device return to an initial state; at this moment, the fixed beam continues the upward movement, and first power consumption device and second power consumption device receive the pulling force, and two buffer boards take place slight tensile deformation under the effect of pulling force, offset the ascending pulling force of fixed beam at the in-process that warp, simultaneously, can produce the relative movement when two buffer boards warp, and the interval between two buffer boards diminishes promptly, and the spring receives pressure compression this moment, and the spring can further offset the ascending pulling force of fixed beam at the in-process of compression.
In the repeated swinging process of the fixed beam and the fixed column, the damper repeats the above process to offset the vibration force of the fixed beam and the fixed column until the vibration force disappears. The damper is provided with damping force according to the energy dissipation mechanism, so that the damper has good energy dissipation performance, and after the damper acts on an earthquake, a damping component is convenient to replace, the damper is simple to operate, wide in application range, low in cost and free of occupying too much use space.
The damper adopts two energy dissipation devices made of mild steel, generates plastic deformation under the action of earthquake force, has good hysteretic characteristic after the mild steel enters a plastic state, and absorbs a large amount of energy in the elastic-plastic hysteretic deformation process, so that most of vibration force borne by the beam and the column can be consumed, and the stability of the beam and column nodes is improved; meanwhile, the energy consumption device made of mild steel is easier to process, stable in hysteresis performance, easy to replace and low in manufacturing cost and maintenance cost.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (9)
1. The damper for reinforcing the beam and column nodes is characterized by comprising an elastic device (3) and two energy consumption devices, wherein the energy consumption devices consume seismic force at the beam and column nodes through hysteresis deformation, two ends of the two energy consumption devices are hinged with each other, the elastic device is installed between the two energy consumption devices, and the two energy consumption devices can be compressed or extended when being subjected to hysteresis deformation.
2. The damper for reinforcing a beam and column joint as claimed in claim 1, wherein the energy dissipation device is of a circular arc structure, both ends of the circular arc form an included angle of less than or equal to 90 ° with the center of the circular arc, and the end of the elastic device is connected with the circular arc surface inside the energy dissipation device.
3. Damper for reinforcing beam and column joints according to claim 1, wherein said two energy consuming devices are a first energy consuming device (1) and a second energy consuming device (2), respectively;
the first energy dissipation device (1) comprises an arc-shaped first buffer plate, two ends of the first buffer plate are respectively connected with first connecting plates, a U-shaped groove is formed in the end part of each first connecting plate, and the included angle between the two first connecting plates is 90 degrees;
the second energy dissipation device (2) comprises an arc-shaped second buffer plate, the two ends of the second buffer plate are respectively connected with a second connecting plate, the second connecting plates can be assembled in the U-shaped groove of the first connecting plate, and the included angle between the two second connecting plates is 90 degrees.
4. Damper for reinforcing beam and column joints according to claim 3, characterized in that said elastic means (3) are springs, the ends of which are connected to the first and second damping plate, respectively.
5. The damper for reinforcing beam and column joints according to claim 4, wherein both ends of the spring are connected to the first and second cushion plates through fixing means (4), respectively;
the fixing device (4) comprises a base and a connecting column arranged on the base, the base is fixedly connected with the cambered surface of the buffer plate, and the connecting column is arranged in the spring hole.
6. A damper for reinforcing a beam and column joint according to claim 3 wherein the end of the second web is provided with a fixing plate (10) for attaching a beam or column.
7. Damper for reinforcing beam and column joints according to claim 6, characterized in that the fixing plate (10) is fixed to the beam or column by tie rods.
8. A damper for reinforcing beam and column joints according to claim 1, wherein said energy dissipating means is made of mild steel.
9. A beam and column shock absorbing structure, wherein a damper according to any one of claims 1 to 8 is provided at each connecting node of the beam and column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141224.0U CN209976061U (en) | 2018-12-19 | 2018-12-19 | Damper for reinforcing beam and column joint and damping structure of beam and column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822141224.0U CN209976061U (en) | 2018-12-19 | 2018-12-19 | Damper for reinforcing beam and column joint and damping structure of beam and column |
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| Publication Number | Publication Date |
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| CN209976061U true CN209976061U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822141224.0U Active CN209976061U (en) | 2018-12-19 | 2018-12-19 | Damper for reinforcing beam and column joint and damping structure of beam and column |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457996A (en) * | 2018-12-19 | 2019-03-12 | 周力强 | A kind of damper for reinforcement and Column border node |
| CN113737948A (en) * | 2021-10-11 | 2021-12-03 | 中山大学 | Energy consumption node of space grid structure |
| CN114837300A (en) * | 2022-05-17 | 2022-08-02 | 中南林业科技大学 | Assembly type steel frame with shock absorption and self-resetting functions and prefabricating method thereof |
-
2018
- 2018-12-19 CN CN201822141224.0U patent/CN209976061U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457996A (en) * | 2018-12-19 | 2019-03-12 | 周力强 | A kind of damper for reinforcement and Column border node |
| CN109457996B (en) * | 2018-12-19 | 2024-07-16 | 周力强 | Damper for reinforcing beam and column joints |
| CN113737948A (en) * | 2021-10-11 | 2021-12-03 | 中山大学 | Energy consumption node of space grid structure |
| CN113737948B (en) * | 2021-10-11 | 2022-06-28 | 中山大学 | Energy consumption node of space grid structure |
| CN114837300A (en) * | 2022-05-17 | 2022-08-02 | 中南林业科技大学 | Assembly type steel frame with shock absorption and self-resetting functions and prefabricating method thereof |
| CN114837300B (en) * | 2022-05-17 | 2023-12-05 | 中南林业科技大学 | Assembled steel frame with damping self-resetting function and prefabricating method thereof |
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