CN116201257A - Combined energy dissipation assembled shear wall horizontal connecting device - Google Patents
Combined energy dissipation assembled shear wall horizontal connecting device Download PDFInfo
- Publication number
- CN116201257A CN116201257A CN202310193924.7A CN202310193924A CN116201257A CN 116201257 A CN116201257 A CN 116201257A CN 202310193924 A CN202310193924 A CN 202310193924A CN 116201257 A CN116201257 A CN 116201257A
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- Prior art keywords
- steel plate
- connecting steel
- embedded
- shear wall
- plate
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 109
- 239000010959 steel Substances 0.000 claims abstract description 109
- 239000011178 precast concrete Substances 0.000 claims abstract description 8
- 210000003141 lower extremity Anatomy 0.000 claims abstract description 4
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000004567 concrete Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 8
- 238000010008 shearing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
Abstract
The invention relates to a combined energy dissipation assembly type shear wall horizontal connecting device, which is characterized in that an upper shear wall and a lower shear wall are connected through buckling-restrained steel bars and a connecting assembly with a friction damper, the connecting assembly comprises a lower embedded connecting steel plate, a friction pair and an upper embedded T-shaped connecting steel plate which are sequentially connected along the longitudinal horizontal direction, the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate are connected with an upper limb precast concrete shear wall and a lower limb precast concrete shear wall through anchor bars, a plurality of screw rods are arranged on the web overlapping surface of the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate, the screw rods sequentially penetrate through the lower embedded connecting steel plate, the friction pair and the upper embedded T-shaped connecting steel plate along the longitudinal horizontal direction and then are connected with screw caps, and two ends of the buckling-restrained steel bars are respectively connected with concave girth welding at the anchor plates of the upper embedded connecting steel plates and the lower embedded connecting steel plates during connection. The invention has the advantages of simple structure, simplified complexity of vertical connection of the assembled concrete shear wall, improved energy consumption capability of the assembled concrete shear wall, and more excellent earthquake resistance and post-earthquake recoverability of the structure.
Description
Technical Field
The invention relates to a horizontal combined energy dissipation connecting device for an assembled shear wall, and belongs to the technical field of node connection of assembled building structures.
Background
The assembled building can effectively improve the construction quality and construction efficiency of the building industry, greatly reduce environmental pollution, and better promote building industrialization and residence industrialization, and is an important ring for adjusting the structure of the building industry. The prefabricated shear wall structure system has high prefabrication rate, has enough bearing capacity and lateral movement resistance rigidity, and can greatly increase the rigidity and the shock resistance of the building. However, a large number of joints exist in the assembled shear wall structure, and the arrangement of the joints in the assembled shear wall structure system can improve the ductility of the wall body, but also weaken the overall rigidity of the wall body, and the ultimate bearing capacity of the precast concrete shear wall is reduced. The horizontal connection structure and performance between the upper and lower shear walls in the assembled shear wall structure system are key to influence the overall safety performance of the structure. The prior assembled shear wall structure system generally has the problems of complex structure design of connecting nodes, high construction difficulty, weak capacity dissipation of the shear wall and the like.
Therefore, under the condition of meeting the normal anti-cracking requirement of the building and the anti-seismic fortification goal of 'small earthquake not damaged', the horizontal joint adopts a bolt connection mode, so that the construction is convenient, the construction efficiency is improved, and the energy consumption materials are arranged in the horizontal joint, so that the structure can obtain better anti-seismic performance in bearing capacity and ductility.
In view of this, the present invention has been made.
Disclosure of Invention
Aiming at the problems of horizontal joints of the traditional assembled shear wall structure, the invention provides a horizontal dry type connecting device of a combined energy dissipation assembled shear wall, which is characterized in that buckling restrained steel bars and friction dampers participate in structural energy dissipation together, the buckling restrained steel bars are arranged at the positions of hidden columns at the end parts of the shear wall, and the energy dissipation capacity of a lower wall body under the action of bending moment and axial force is improved. The friction damper adopts a shearing type structure, and two steel plates at the outer side have the function of bearing the pressure of the shear wall shaft, so that the friction damper rubs and dissipates energy under the shearing action. The upper and lower embedded connecting steel plates are connected through bolts, so that the industrial production and post-earthquake repair are facilitated. The energy dissipation capacity of the assembled shear wall is improved, so that the structure obtains more proper anti-seismic performance in the mutual coordination of bearing capacity and ductility.
In order to achieve the above object, the technical scheme of the present invention is as follows: the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate are respectively connected with the upper and lower limb precast concrete shear walls through anchor bars, a plurality of screws are respectively arranged on web overlapping surfaces of the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate, the screws are connected with nuts after sequentially penetrating through the lower embedded connecting steel plate, the friction pair and the upper embedded T-shaped connecting steel plate along the longitudinal horizontal direction, and a pair of friction pairs are clamped between the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate; four concave rings are respectively arranged at two ends of the anchor plate of the lower embedded connecting steel plate and the anchor plate of the upper embedded T-shaped connecting steel plate, and during connection, two ends of the buckling-restrained steel rod are respectively connected with the concave ring girth welding of the anchor plate of the upper embedded T-shaped connecting steel plate and the anchor plate of the lower embedded connecting steel plate.
Further, the length of the upper pre-buried T-shaped connecting steel plate web plate is slightly shorter than that of the lower pre-buried connecting steel plate web plate, the longitudinal height of the friction pair is the same as that of the upper pre-buried T-shaped steel plate web plate, a certain gap is reserved between the bottom of the upper pre-buried T-shaped connecting steel plate web plate and the inner surface of the lower pre-buried connecting steel plate anchor plate, the lower end of the friction pair is flush with the inner surface of the lower connecting steel plate anchor plate, and a gap is reserved between the upper end of the friction pair and the inner surface of the upper connecting T-shaped steel plate.
Further, web plates of the lower embedded connecting steel plate, the friction pair and the upper embedded T-shaped connecting steel plate are connected through high-strength bolts arranged along the longitudinal horizontal direction.
Further, the web plate of the upper embedded T-shaped connecting steel plate and the pair of friction pairs are respectively provided with two through long holes for the screw rod to pass through, and the lower embedded connecting steel plate is provided with a plurality of round holes for the screw rod to pass through.
Further, the friction pair is made of a metal material with good friction characteristics, including bronze, brass or aluminum alloy.
Compared with the traditional horizontal connecting device for the assembled shear wall, the horizontal connecting device for the assembled shear wall has the following beneficial effects:
1) According to the invention, the buckling restrained steel bar, the friction damper, the connecting steel plate and the high-strength bolt are connected, and the buckling restrained steel bar is arranged at the position of the hidden column at the end part of the shear wall, so that the energy dissipation capacity of the wall under the action of bending moment and axial force is improved. The friction damper adopts a shearing type structure, and two steel plates at the outer side have the function of bearing the pressure of the shear wall shaft, so that the friction damper rubs and dissipates energy under the shearing action. The combined energy dissipation at the horizontal seam position consists of a friction damper and an anti-buckling steel rod. The connection mode ensures the structural integrity of the shear wall and simultaneously gives consideration to the bearing capacity and the energy consumption capacity.
2) The invention greatly simplifies the complexity of the connection of the upper shear wall and the lower shear wall of the assembled concrete shear wall structure, simplifies the construction process, improves the construction efficiency and ensures the construction quality.
Drawings
FIG. 1 is a schematic view of a combined energy dissipation fabricated shear wall horizontal connection device of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an enlarged view of a portion of the junction of FIG. 1;
FIG. 4 is a side view of FIG. 3;
FIG. 5 is an enlarged fragmentary elevational view of the connection of FIG. 1 after assembly;
fig. 6 is a side view of fig. 5.
Reference numerals illustrate: 1, pre-burying a T-shaped connecting steel plate; 2: a screw; 3: buckling-restrained steel bars; 4: a friction pair; 5: a lower embedded connecting steel plate; 6: a screw cap; 7: buckling-preventing steel bar concave ring.
Detailed Description
The horizontal connecting device for the combined energy dissipation assembly type shear wall is described in detail below with reference to the drawings, the embodiment is implemented on the premise of taking the technical scheme of the invention as a premise, but the protection scope of the invention is not limited to the embodiment, and a person skilled in the art can modify and color the horizontal connecting device without changing the spirit and the content of the invention.
As shown in fig. 1 to 6, the horizontal connecting device for the combined energy dissipation assembly type shear wall provided by the embodiment of the invention comprises a buckling restrained steel rod and a connecting assembly with a friction damper. The diameter of the buckling restrained steel rod 3 is between 20-25 mm, four concave rings 7 are respectively arranged on two sides of an anchor plate of the upper embedded T-shaped connecting steel plate 1 and the lower embedded connecting steel plate 5, the diameter of each concave ring 7 can be 1-2 mm larger than that of the steel rod 3, and when the buckling restrained steel rod is connected, two ends of the buckling restrained steel rod 3 are respectively in girth welding connection with the four concave rings 7 arranged on the upper embedded T-shaped connecting steel plate 1 and the lower embedded connecting steel plate 5.
The connecting assembly with the friction damper comprises a lower embedded connecting steel plate 5, a friction pair 4 and an upper embedded T-shaped connecting steel plate 1 which are sequentially connected along the longitudinal horizontal direction, wherein the upper embedded connecting steel plate 1 and the lower embedded connecting steel plate 5 are connected with an upper limb precast concrete shear wall and a lower limb precast concrete shear wall through anchor bars, a plurality of screws 2 are respectively arranged on the web overlapping surfaces of the upper embedded connecting steel plate and the lower embedded connecting steel plate, and the screws 2 sequentially penetrate through the lower embedded connecting steel plate 5, the friction pair 4 and the upper embedded T-shaped connecting steel plate 1 along the longitudinal horizontal direction and then are connected with nuts 6. A friction pair 4 is arranged between webs of the upper and lower embedded connecting steel plates, a pair of friction pairs 4 are clamped between the upper embedded T-shaped connecting steel plate 1 and the lower embedded connecting steel plate 5, and the upper embedded connecting steel plate, the lower embedded connecting steel plate and the upper embedded connecting steel plate are tightly bolted by a screw rod 2 and a screw cap 6 during connection. The friction pair 4 is made of a metal material with good friction characteristics, such as bronze, brass or aluminum alloy, and the specific thickness of the friction pair 4 is calculated and determined according to the energy consumption value required by the shear wall. The screw 2 is provided with two rows, and the specific number of each row can be controlled by a design method based on performance. The web plate of the upper embedded T-shaped connecting steel plate 1 and the pair of friction pairs 4 are respectively provided with two through long holes for the screw rod 2 to pass through, the lower embedded connecting steel plate 5 is provided with a plurality of round holes for the screw rod 2 to pass through, the apertures of all the round holes are consistent, the intervals are the same, and the diameter of the round holes can be 1-2 mm larger than that of the screw rod 2. The length of the web plate of the upper embedded T-shaped connecting steel plate 1 is slightly shorter than that of the web plate of the lower embedded connecting steel plate 5, the longitudinal height of the friction pair is the same as that of the web plate of the upper embedded T-shaped steel plate, a certain gap is reserved between the bottom of the web plate of the upper embedded T-shaped connecting steel plate and the inner surface of the anchor plate of the lower embedded connecting steel plate during connection, the lower end of the friction pair is flush with the inner surface of the anchor plate of the lower connecting steel plate, and a gap is reserved between the upper end of the friction pair and the inner surface of the upper connecting T-shaped steel plate.
Claims (5)
1. The utility model provides a combination energy dissipation assembled shear force wall horizontal connection device which characterized in that: the connecting assembly comprises a buckling restrained steel rod and a connecting assembly with a friction damper, wherein the upper shear wall and the lower shear wall are connected through the buckling restrained steel rod and the connecting assembly with the friction damper, the connecting assembly comprises a lower embedded connecting steel plate, a friction pair and an upper embedded T-shaped connecting steel plate which are sequentially connected along the longitudinal horizontal direction, the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate are respectively connected with an upper limb precast concrete shear wall and a lower limb precast concrete shear wall through anchor bars, a plurality of screw rods are respectively arranged on web overlapping surfaces of the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate, the screw rods sequentially penetrate through the lower embedded connecting steel plate, the friction pair and the upper embedded T-shaped connecting steel plate along the longitudinal horizontal direction and then are connected with screw caps, and a pair of friction pairs are clamped between the upper embedded T-shaped connecting steel plate and the lower embedded connecting steel plate; four concave rings are respectively arranged at two ends of the anchor plate of the lower embedded connecting steel plate and the anchor plate of the upper embedded T-shaped connecting steel plate, and during connection, two ends of the buckling-restrained steel rod are respectively connected with the concave ring girth welding of the anchor plate of the upper embedded T-shaped connecting steel plate and the anchor plate of the lower embedded connecting steel plate.
2. The combined energy dissipation fabricated shear wall horizontal connection device of claim 1, wherein: the length of the upper embedded T-shaped connecting steel plate web plate is slightly shorter than that of the lower embedded connecting steel plate web plate, the longitudinal height of the friction pair is identical to that of the upper embedded T-shaped steel plate web plate, a certain gap is reserved between the bottom of the upper embedded T-shaped connecting steel plate web plate and the inner surface of the lower embedded connecting steel plate anchor plate, the lower end of the friction pair is flush with the inner surface of the lower connecting steel plate anchor plate, and a gap is reserved between the upper end of the friction pair and the inner surface of the upper connecting T-shaped steel plate.
3. The combined energy dissipation fabricated shear wall horizontal connection device of claim 1, wherein: the lower embedded connecting steel plate, the friction pair and the web plate of the upper embedded T-shaped connecting steel plate are connected through high-strength bolts arranged along the longitudinal horizontal direction.
4. The combined energy dissipation fabricated shear wall horizontal connection device of claim 1, wherein: the web plate of the upper embedded T-shaped connecting steel plate and the pair of friction pairs are respectively provided with two through long holes for the screw rod to pass through, and the lower embedded connecting steel plate is provided with a plurality of round holes for the screw rod to pass through.
5. The combined energy dissipation fabricated shear wall horizontal connection device of claim 1, wherein: the friction pair is made of metal materials with good friction characteristics, including bronze, brass or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310193924.7A CN116201257A (en) | 2023-03-02 | 2023-03-02 | Combined energy dissipation assembled shear wall horizontal connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310193924.7A CN116201257A (en) | 2023-03-02 | 2023-03-02 | Combined energy dissipation assembled shear wall horizontal connecting device |
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| Publication Number | Publication Date |
|---|---|
| CN116201257A true CN116201257A (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310193924.7A Pending CN116201257A (en) | 2023-03-02 | 2023-03-02 | Combined energy dissipation assembled shear wall horizontal connecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853163A (en) * | 2022-12-07 | 2023-03-28 | 石河子大学 | Dry-type connection assembly type shear wall structure based on horizontal seam friction-energy consumption |
-
2023
- 2023-03-02 CN CN202310193924.7A patent/CN116201257A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853163A (en) * | 2022-12-07 | 2023-03-28 | 石河子大学 | Dry-type connection assembly type shear wall structure based on horizontal seam friction-energy consumption |
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