CN215563537U - Energy-consuming dry-type connecting device based on memory alloy - Google Patents
Energy-consuming dry-type connecting device based on memory alloy Download PDFInfo
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- CN215563537U CN215563537U CN202121486240.9U CN202121486240U CN215563537U CN 215563537 U CN215563537 U CN 215563537U CN 202121486240 U CN202121486240 U CN 202121486240U CN 215563537 U CN215563537 U CN 215563537U
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 20
- 238000005265 energy consumption Methods 0.000 claims abstract description 33
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 34
- 229910000831 Steel Inorganic materials 0.000 abstract description 10
- 239000010959 steel Substances 0.000 abstract description 10
- 239000002131 composite material Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses an energy-consumption dry-type connecting device based on memory alloy, which comprises an energy-consumption piece connected with an embedded steel plate, wherein a supporting plate and an energy-consumption block are arranged inside the energy-consumption piece, the energy-consumption block is positioned between the two supporting plates, and the energy-consumption block is also arranged between the supporting plate and the energy-consumption piece.
Description
Technical Field
The utility model relates to the technical field of wall body connecting methods of an assembly type composite wall structure, in particular to an energy-consuming dry-type connecting device based on memory alloy.
Background
The boundary connecting technology is one of key core technologies of the prefabricated concrete structure, reliable stressed steel bar connection and reasonable node and seam construction measures ensure that prefabricated parts are connected into a whole, the structural performance of the prefabricated parts is ensured to have the integrity, the ductility, the bearing capacity and the durability which are equal to those of a cast-in-place concrete structure, and the effect which is equal to that of the cast-in-place concrete structure is achieved.
The boundary connection technology comprises a dry connection technology and a boundary connection technology, the current mainstream technology still mainly adopts wet connection, the demand of the wet connection on the template is large, the construction period is long, and the influence of seasons is easy to cause, the current dry connection mainly adopts steel bar sleeve grouting connection, the construction process is complex, the cost is high, meanwhile, the energy consumption and shock absorption effects of the dry connection are poor, and in addition, the integrated technologies of force bearing, heat preservation, fire prevention, weather resistance, moisture prevention and the like of a dry connection joint also have problems.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides an energy-consuming dry-type connecting device based on memory alloy.
The utility model is realized by the following technical scheme:
an energy-consuming dry-type connecting device based on memory alloy comprises a pre-embedded plate and an energy-consuming part connected with the pre-embedded plate;
the energy dissipation piece is of a ring-shaped closed structure, the support pieces are arranged inside the energy dissipation piece, one ends of the support pieces are connected with the inner wall of the energy dissipation piece, the other ends of the support pieces are free ends, the support pieces are arranged along the center of the energy dissipation piece in a rotational symmetry mode, the free ends of the support pieces are arranged in parallel and at intervals, and energy dissipation blocks are arranged between the inner wall of the energy dissipation piece and the side wall of each support piece and between the free ends of the two adjacent support pieces.
Preferably, the energy consumption piece is provided with a kidney-shaped hole in the center, the end of one of the two symmetrical supporting pieces is connected with one side wall of the kidney-shaped hole, and the end of the other supporting piece is connected with the other side wall of the kidney-shaped hole.
Preferably, the supporting piece is of an L-shaped structure, the end part of a horizontal plate of the supporting piece is connected with the inner wall of the energy dissipation piece, and the end part of a vertical plate is a free end.
Preferably, the energy dissipation block is a memory alloy block.
Preferably, the energy dissipation member is connected with the embedded plate member through a fastening member.
Preferably, the fastener is a high-strength bolt.
Preferably, the embedded plate is connected with the wall body through an anchor rod.
Preferably, energy dissipation parts are arranged on two sides of each embedded plate.
Compared with the prior art, the utility model has the following beneficial technical effects:
the energy-consuming dry-type connecting device based on the memory alloy comprises an energy-consuming piece connected with an embedded steel plate, wherein a supporting plate and an energy-consuming block are arranged inside the energy-consuming piece, the energy-consuming block is positioned between the two supporting plates, and the energy-consuming block is also arranged between the supporting plate and the energy-consuming piece.
Furthermore, because the material strength and the cross section design of the embedded plate are larger than those of the energy consumption piece, after the energy consumption piece is damaged, the embedded plate is still in an elastic stress stage, and the replaceable energy consumption block and the energy consumption piece can realize the restorable function of the structure.
Furthermore, the energy dissipation part is connected with the embedded plate through the fastening part, so that the energy dissipation part is convenient to replace and maintain, the installation precision requirement is reduced, and the installation and the disassembly are easy.
Furthermore, the energy dissipation part is directly installed along the wall surface after the wallboard is hoisted and positioned, the requirement on precision is not high, and the installation process is simple and convenient to install and disassemble due to the simple structural form.
Drawings
FIG. 1 is a schematic view of the structure of the connecting device of the present invention;
FIG. 2 is a schematic structural diagram of an energy dissipating member according to the present invention;
fig. 3 is a schematic structural diagram of the embedded plate according to the present invention.
In the figure: 1. an energy dissipating component; 2. pre-burying a plate; 3. a high-strength bolt; 4. a memory alloy block; 5. an anchor rod; 6. a screw hole; 7. a fastening hole; 8. and a support member.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1-3, the energy-consuming dry-type connecting device based on memory alloy comprises an energy-consuming part 1 and two embedded plates 2 connected with the energy-consuming part, wherein the two embedded plates 2 are symmetrically arranged along the center of the energy-consuming part 1.
The energy consumption piece 1 is annularly closed, a plurality of supporting pieces 8 are arranged inside the energy consumption piece 1, one end of each supporting piece is connected with the inner wall of the energy consumption piece, the other end of each supporting piece is a free end, the supporting pieces are arranged along the central rotational symmetry of the energy consumption piece, the free ends of the supporting pieces are arranged in parallel and at intervals, and energy consumption blocks are arranged between the inner wall of the energy consumption piece 1 and the side wall of each supporting piece and between the free ends of two adjacent supporting pieces.
Referring to fig. 2, a waist-shaped hole is formed in the center of the energy dissipation member, the end of one of the two symmetrical support members is connected to one sidewall of the waist-shaped hole, and the end of the other support member is connected to the other sidewall of the waist-shaped hole.
The support pieces are of an L-shaped structure, the end parts of the horizontal plates of the support pieces are connected with the inner walls of the energy dissipation pieces, the end parts of the vertical plates are free ends, the vertical plates of the two support pieces are arranged in parallel at intervals, the energy dissipation blocks are arranged between the two vertical plates, and the energy dissipation blocks are also arranged between the vertical plates and the inner walls of the waist-shaped holes.
The number of the supporting parts is two.
The energy dissipation block is a memory alloy block 4.
Referring to fig. 3, fastening holes 7 are formed in two sides of the energy dissipation member, screw holes 6 are formed in the embedded plate member, and the fastening member penetrates through the fastening holes 7 and the screw holes to connect the two, so that an integral connecting member is formed.
And the embedded plate is also provided with an anchor rod hole and is connected with the wall body through an anchor rod.
Energy dissipation parts are arranged on two sides of each embedded plate and symmetrically arranged, and the embedded plates on the two walls are connected through the two energy dissipation parts, so that the earthquake energy dissipation effect is improved.
The energy consumption piece is made of low-yield-point steel, the embedded steel plate is a steel plate, and the yield point of the energy consumption piece is lower than that of the embedded steel plate.
The energy consumption principle of the energy consumption type dry connecting device based on the memory alloy is as follows:
when the stress of the SMA block in the connecting device exceeds the elastic limit (about 150MPa), the SMA block generates plastic deformation and begins to consume energy, and at the moment, the energy consumption piece and the support plate are still in the elastic deformation stage at the first stage of energy consumption. Along with the increase of the load, the L-shaped supporting plate is subjected to plastic deformation gradually, the connecting piece enters a second energy consumption stage, and the SMA block and the supporting plate consume energy together at the moment.
In the first stress stage, when the wall is stressed less, the connecting device is stressed less and is in the elastic stage, and at the moment, the connecting device and the wall are stressed together. Along with the increase of the load, the SMA block exceeds the elastic limit of the SMA block to begin to generate plastic deformation, and at the moment, the wall body enters a second stress stage, the energy consumption is mainly consumed through the plastic deformation of the SMA block in the stage, and the supporting plate is still in the elastic deformation stage. And (3) with the further increase of the load, the wall body enters a third stress stage, the supporting plate enters a plastic deformation state to participate in energy consumption, and then the connecting device mainly consumes energy together through the plastic deformation of the SMA and the supporting piece.
The construction method of the energy-consuming dry-type connecting device based on the memory alloy provided by the utility model is explained in detail below, and comprises the following steps:
step one, preparing a prefabricated composite wallboard.
Firstly assembling a special steel template, placing an embedded steel plate, pouring C30 fine stone concrete with the thickness of 20mm at the bottom layer, immediately placing ecological blocks, placing processed rib beams and rib column reinforcing steel bars into the template, placing the embedded plate at the rib beam of a wall body, fixing by using a positioning device, pouring C30 fine stone concrete after confirming no errors, then leveling and plastering, performing standard maintenance after prefabrication is completed, and removing the template when the strength meets the requirement, thereby forming the prefabricated composite wallboard.
And step two, hoisting the prefabricated composite wallboard and installing the energy dissipation member.
The composite wall boards are hoisted to corresponding positions, after the two composite wall boards are vertically connected to meet requirements, energy dissipation pieces are installed on two sides of the two embedded plates, two ends of each energy dissipation piece are connected with the two embedded plates through high-strength bolts respectively, the embedded plates are located between the two energy dissipation pieces, and the high-strength bolts are required to apply pre-tightening force.
And step three, performing seam treatment after the connecting device is fixed. And (3) filling EPS foam strips with the diameter of 25mm into two sides of the prefabricated composite wallboard along the vertical direction, then leveling the vertical joint by using mortar, and finally grouting and filling the middle gap part of the foam strips by using high-strength grouting material.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. An energy-consuming dry-type connecting device based on memory alloy is characterized by comprising an embedded plate (2) and an energy-consuming part (1) connected with the embedded plate;
the energy dissipation piece (1) is of a ring-shaped closed structure, the support piece (8) is arranged inside the energy dissipation piece (1), one end of the support piece is connected with the inner wall of the energy dissipation piece, the other end of the support piece is a free end, the support pieces are arranged along the central rotational symmetry of the energy dissipation piece, the free ends of the support pieces are arranged in parallel and at intervals, and energy dissipation blocks are arranged between the inner wall of the energy dissipation piece (1) and the side wall of each support piece and between the free ends of the two adjacent support pieces.
2. The energy consumption type dry connecting device based on memory alloy as claimed in claim 1, wherein the energy consumption member is provided with a kidney-shaped hole at the center, the end of one of the two symmetrical supporting members is connected with one side wall of the kidney-shaped hole, and the end of the other supporting member is connected with the other side wall of the kidney-shaped hole.
3. The dry connecting device of claim 1 or 2, wherein the supporting member is an L-shaped structure, the end of the horizontal plate of the supporting member is connected to the inner wall of the energy dissipating member, and the end of the vertical plate is a free end.
4. A memory alloy based dissipative dry connection according to claim 1, wherein the dissipative mass is a mass (4) of memory alloy.
5. The energy dissipation type dry connecting device based on memory alloy as claimed in claim 1, wherein the energy dissipation member is connected with the embedded plate member by a fastening member.
6. The energy dissipating dry-type connection according to claim 5, wherein the fastening member is a high strength bolt.
7. The energy consumption type dry connecting device based on memory alloy as claimed in claim 1, wherein the embedded plate is connected with the wall body through anchor rods.
8. The energy consumption type dry connecting device based on memory alloy as claimed in claim 1, wherein the energy consumption pieces are arranged on both sides of the embedded plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121486240.9U CN215563537U (en) | 2021-06-30 | 2021-06-30 | Energy-consuming dry-type connecting device based on memory alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121486240.9U CN215563537U (en) | 2021-06-30 | 2021-06-30 | Energy-consuming dry-type connecting device based on memory alloy |
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| CN215563537U true CN215563537U (en) | 2022-01-18 |
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| CN202121486240.9U Active CN215563537U (en) | 2021-06-30 | 2021-06-30 | Energy-consuming dry-type connecting device based on memory alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293885A (en) * | 2021-06-30 | 2021-08-24 | 西安建筑科技大学 | Energy-consuming dry-type connecting device based on memory alloy and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113293885A (en) * | 2021-06-30 | 2021-08-24 | 西安建筑科技大学 | Energy-consuming dry-type connecting device based on memory alloy and construction method |
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Effective date of registration: 20231023 Address after: 710086 Room 1402, 14th Floor, Block 3-D, Zone 3, Phase I, Energy Jinmao Zone, Fengdong New City, Xixian New District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Qinchuang Matrix Construction Technology Co.,Ltd. Address before: 710055 Yanta Road 13, Xi'an City, Shaanxi Province Patentee before: XIAN University OF ARCHITECTURE AND TECHNOLOG |