CN212336405U - Precast concrete shear wall with steel construction connecting piece - Google Patents
Precast concrete shear wall with steel construction connecting piece Download PDFInfo
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- CN212336405U CN212336405U CN202020733456.XU CN202020733456U CN212336405U CN 212336405 U CN212336405 U CN 212336405U CN 202020733456 U CN202020733456 U CN 202020733456U CN 212336405 U CN212336405 U CN 212336405U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 104
- 239000010959 steel Substances 0.000 title claims abstract description 104
- 239000011178 precast concrete Substances 0.000 title claims abstract description 66
- 238000010276 construction Methods 0.000 title abstract description 19
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 22
- 238000009826 distribution Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 7
- 239000011440 grout Substances 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 28
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model discloses a precast concrete shear wall with steel structure connecting pieces, which comprises a precast concrete shear wall body, wherein the upper part of the precast concrete shear wall body is pre-embedded with an upper steel structure connecting piece, and the lower part of the precast concrete shear wall body is pre-embedded with a lower steel structure connecting piece; be equipped with the screw in the upper portion steel construction connecting piece, be provided with the high strength bolt that runs through lower part steel construction connecting piece and pre-buried in shear force wall body in the lower part steel construction connecting piece, the screw one-to-one on high strength bolt and the upper portion steel construction connecting piece. The utility model discloses a screw in the upper and lower part steel construction connecting piece and the high strength bolt can realize the high-speed joint of two upper and lower shear force walls, need not the grout operation, and connection performance is good, construction speed is fast, pollute for a short time, and construction quality is steerable.
Description
Technical Field
The utility model relates to an assembly type structure technical field, concretely relates to precast concrete shear force wall with steel construction connecting piece.
Background
Compared with the traditional cast-in-place concrete structure, the prefabricated concrete structure has the advantages of high construction speed, low pollution, labor cost saving and the like, and various building enterprises are developing the prefabricated concrete structure vigorously at present, so that the industrial upgrading of the building industry is promoted.
The precast concrete shear wall is one of important components in an assembled concrete structure, is a wall body which mainly bears horizontal load and vertical load caused by wind load or earthquake action in a house or a building, and can prevent the structure from being sheared and damaged. The shear wall has high structural rigidity and good stress performance, is a preferred structural form of high-rise houses, and is also one of the main structural forms of the prefabricated buildings in China. The upper wall piece and the lower wall piece of the shear wall in the fabricated concrete structure are connected into a whole through the vertical steel bars, so that the connection quality of the vertical steel bars directly determines the stress and the seismic performance of the fabricated shear wall structure, and is an important factor influencing the stress performance of the shear wall. The connection mode of the vertical steel bars of the precast concrete shear wall mainly comprises steel bar sleeve grouting connection and slurry anchor lap joint connection.
The steel bar sleeve grouting connection is a steel bar connection mode of force transmission realized by inserting ribbed steel bars into the metal sleeve and hardening the grouting material mixture. The steel bar sleeve grouting connection has high technical requirements on workers, and the grouting quality is difficult to guarantee due to the fact that the sleeve for connecting steel bars is arranged inside the component, and quality inspection is difficult. When the grouting material has the conditions of insufficient strength, insufficient anchoring length of the reinforcing steel bars and the like, if the grouting material is not properly treated, the overall performance of the structure is influenced, and the structure safety is adversely affected.
The grout anchor overlap joint means that a pore channel is reserved in the precast concrete member, a steel bar to be overlapped is inserted into the pore channel, and cement-based grouting material is poured to realize a steel bar overlap joint mode. The lapping length of the steel bars in the slurry anchor lapping connection is long, and the grouting quality is not easy to guarantee. In addition, when carrying out on-the-spot hoist and mount construction, because reinforcing bar overlap joint length is longer, the component can be because hoist and mount and dismantle improper and cause the eccentric defect of reinforcing bar in the transportation, influence the connection quality, produce adverse effect to the whole safety of structure.
Therefore, the development of a precast concrete shear wall with fast installation speed and safe and reliable connection is needed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a precast concrete shear force wall with steel construction connecting piece, can realize quick, the safe connection of the upper and lower wall piece of shear force wall.
In order to solve the technical problem, the utility model provides a precast concrete shear wall with steel structure connecting pieces, which comprises a precast concrete shear wall body and is characterized in that the upper part of the precast concrete shear wall body is pre-embedded with an upper steel structure connecting piece, and the lower part of the precast concrete shear wall body is pre-embedded with a lower steel structure connecting piece;
the upper steel structure connecting piece comprises a first flange plate, a second flange plate, a middle web plate and a top connecting plate; the first flange plate is positioned at the upper part of the shear wall body and is connected with the wall body through a middle web plate embedded in the shear wall body; screw holes are formed in the first flange plate in the length direction, the first flange plate and the second flange plate are connected through a middle web plate, and the second flange plate is embedded in the shear wall body; the edges of the left side and the right side of the second flange plate are respectively provided with a vertical downward top connecting plate, and the top connecting plates are embedded inside the shear wall body.
The lower steel structure connecting piece comprises a bottom plate and a bottom connecting plate, the bottom plate is tightly attached to the bottom of the precast concrete shear wall body, the bottom connecting plate which is vertically upward is arranged on the bottom plate, the bottom connecting plate is pre-buried inside the shear wall body, high-strength bolts which penetrate through the bottom plate and are pre-buried in the shear wall body are arranged in the bottom plate, and the high-strength bolts correspond to screw holes in the first flange plates one to one.
The utility model discloses a preferred embodiment, further include the first flange board of upper portion steel construction connecting piece and the bottom plate width of lower part steel construction connecting piece are the same, are shear force wall body thickness.
In a preferred embodiment of the present invention, the depth of the middle web of the upper steel structure connecting member embedded into the precast concrete shear wall body is 20 to 30 mm; the sum of the height of the middle web plate extending out of the top surface of the wall, the thickness of the first flange plate and the thickness of the bottom plate of the upper shear wall is equal to the thickness of the superposed floor slab.
In a preferred embodiment of the present invention, the first flange plate, the second flange plate, the middle web, the top connecting plate, the bottom plate and the bottom connecting plate are rectangular plates.
The utility model discloses a preferred embodiment, further include the steel sheet thickness of middle web is 15 ~ 25mm, the steel sheet thickness of first flange board, second flange board, top connecting plate, bottom plate and bottom connecting plate is 8 ~ 15 mm.
The utility model discloses a preferred embodiment, further include shear force wall body bottom pre-buried has two rows of high-strength bolts, and the distance between the same row of high-strength bolt is not more than 500 mm.
In a preferred embodiment of the present invention, the high-strength bolt has a diameter of 16 to 25 mm.
The utility model discloses a preferred embodiment, further include still be provided with vertical distribution reinforcing bar and horizontal distribution reinforcing bar in the shear force wall body, the reinforcing bar diameter is not less than 8mm, vertical distribution reinforcing bar interval is 200 ~ 300mm, horizontal distribution reinforcing bar interval is 300 ~ 400 mm.
In a preferred embodiment of the present invention, the width of the second flange plate of the upper steel structure connecting member is the same as the clear distance between the vertical distribution steel bars on both sides of the shear wall, and the top connecting plate is welded to the vertical distribution steel bars in the shear wall body; and the bottom connecting plate is welded and connected with the vertically distributed steel bars in the shear wall body.
In a preferred embodiment of the present invention, the welding length of the top connecting plate and the vertical connecting steel bar in the precast concrete shear wall is not less than 7 times of the diameter of the steel bar; the welding length of the bottom connecting plate and the vertical connecting steel bars in the precast concrete shear wall is not less than 7 times of the diameter of the steel bars.
The utility model has the advantages that:
1. the utility model discloses a pre-buried upper portion steel connection structure and lower part steel connection structure of having in the wall body of precast concrete shear force wall is provided with the screw in the steel connection structure of upper portion, is provided with high strength bolt in the steel connection structure of lower part, and upper and lower wall piece can accomplish the high-speed joint through screwing up high strength bolt in the screw, need not the grout operation, and connection performance is good, construction speed is fast, pollute for a short time, and construction quality is steerable.
2. The steel structure connecting piece inside the precast concrete shear wall is welded and connected with the vertical distributed steel bars inside the shear wall body, so that the anchoring performance of the steel structure connecting piece and the shear wall is enhanced, and the connection integrity is ensured.
3. The bottom plate of the steel structure connecting piece at the lower part of the precast concrete shear wall is used as a template when the shear wall is manufactured, so that the manufacturing of components is facilitated.
Drawings
FIG. 1 is a cross-sectional view of a precast concrete shear wall with steel structural connectors of the present invention;
FIG. 2 is a schematic structural view of the connection between the upper and lower wall plates of the shear wall of the present invention;
fig. 3 is the internal structure schematic diagram of the precast concrete shear wall with the steel structure connecting piece of the utility model.
The reference numbers in the figures illustrate: 1. a shear wall body; 2. an upper steel structure connecting member; 21. a first flange plate; 22. a second flange plate; 23. an intermediate web; 24. a top connection plate; 25. a screw hole; 3. a lower steel structure connecting member; 31. a base plate; 32. a bottom connecting plate; 33. a high-strength bolt; 4. overlapping the floor slabs; 5. concrete; 6. vertically distributing reinforcing steel bars; 7. and horizontally distributing the steel bars.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
Referring to fig. 1, an embodiment of the precast concrete shear wall with the steel structure connecting member of the present invention includes a precast concrete shear wall body 1, an upper steel structure connecting member 2 is pre-embedded in an upper portion of the precast concrete shear wall body 1, and a lower steel structure connecting member 3 is pre-embedded in a lower portion of the precast concrete shear wall body 1;
the upper steel structural connector 2 comprises a first flange plate 21, a second flange plate 22, a middle web plate 23 and a top connecting plate 24; the first flange plate 21 is positioned at the upper part of the shear wall body 1 and is connected with a wall body through a middle web plate 23 pre-embedded in the shear wall body 1; screw holes 25 are formed in the length direction of the first flange plate 21, the first flange plate 21 and the second flange plate 22 are connected through a middle web plate 23, and the second flange plate 22 is embedded in the shear wall body; the edges of the left side and the right side of the second flange plate 22 are both provided with vertical downward top connecting plates 24, and the top connecting plates 24 are pre-embedded inside the shear wall body 1.
The lower steel structure connecting piece 3 comprises a bottom plate 31 and a bottom connecting plate 32, the bottom plate 31 is tightly attached to the bottom of the precast concrete shear wall body 1, the bottom connecting plate 32 which is vertically upward is arranged on the bottom plate 31, the bottom connecting plate 32 is pre-embedded inside the shear wall body 1, high-strength bolts 33 which penetrate through the bottom plate 31 and are pre-embedded in the shear wall body 1 are arranged in the bottom plate 31, and the high-strength bolts 33 are in one-to-one correspondence with the screw holes 25 in the first flange plate 21.
Referring to fig. 2, in this embodiment, two precast concrete shear walls with the steel structure connecting pieces are connected together, in this embodiment, the lower precast concrete shear wall is installed, the composite floor slab 4 and the supporting device are placed in place, and a worker performs installation construction of the upper precast concrete shear wall:
specifically, will the utility model discloses a precast concrete shear force wall lifts by crane to the precast concrete shear force wall top of having installed the completion, aligns bottom plate 31 and the first flange board 21 of lower part precast concrete shear force wall of upper portion precast concrete shear force wall, and the position of the novel precast concrete shear force wall in adjustment top makes pre-buried high strength bolt 33 can accurately pass the bolt hole on the novel precast concrete shear force wall first flange board 21 in lower part, and high strength bolt 33 carries out just twisting and final twisting in proper order from both sides to the centre.
After the position of the novel precast concrete shear wall on the upper part is fixed, concrete 5 is poured in a gap of the connecting part, the outer edge of the concrete 5 is flushed with the precast concrete shear wall on the upper part and the precast concrete shear wall on the lower part, and after the concrete 5 is poured and cured, the upper shear wall, the lower shear wall and the peripheral floor slab are connected into a whole.
In the embodiment, in order to realize accurate fixation of the upper prefabricated shear wall and facilitate later-stage construction, the widths of the first flange plate 21 of the upper steel structure connecting piece 2 and the bottom plate 31 of the lower steel structure connecting piece 3 are the same and are the thickness of the shear wall body 1; during hoisting of the shear wall, the bottom bolts of the upper layer wall are inserted into the first flange plates 21 of the lower layer wall, so that the bottom plate 31 is ensured to be aligned with the first flange plates 21 of the lower prefabricated shear wall.
Specifically, in order to ensure that the installation of the composite floor slab 4 is not influenced, the depth of embedding the middle web plate 23 of the upper steel structure connecting piece 2 into the precast concrete shear wall body 1 is 20-30 mm; the sum of the height of the middle web plate 23 extending out of the wall top surface, the thickness of the first flange plate 21 and the thickness of the upper shear wall bottom plate 31 is equal to the thickness of the laminated floor slab 4.
Specifically, first flange board 21, second flange board 22, middle web 23, top connecting plate 24, bottom plate 31 and bottom connecting plate 32 are the rectangular plate, the steel sheet thickness of middle web 23 is 15 ~ 25mm, the steel sheet thickness of first flange board 21, second flange board 22, top connecting plate 24, bottom plate 31 and bottom connecting plate 32 is 8 ~ 15 mm.
Specifically, in order to ensure the connection stability of the upper and lower two wall sheets, in this embodiment, two rows of high-strength bolts 33 are embedded in the bottom of the shear wall body 1, the distance between the same row of high-strength bolts 33 is not greater than 500mm, and the diameter of each high-strength bolt 33 is 16-25 mm.
Referring to fig. 3, vertical distribution reinforcing steel bars 6 and horizontal distribution reinforcing steel bars 7 are further arranged in the shear wall body 1, the diameter of the reinforcing steel bars is not smaller than 8mm, the distance between the vertical distribution reinforcing steel bars 6 is 200-300 mm, the distance between the horizontal distribution reinforcing steel bars 7 is 300-400 mm, and the width of the second flange plate 22 of the upper steel structure connecting piece 2 is the same as the clear distance between the vertical distribution reinforcing steel bars 6 on the two sides of the shear wall; the top connecting plate 24 is welded with the vertically distributed reinforcing steel bars 6 in the shear wall body 1; the bottom connecting plate 32 is connected with the vertically distributed reinforcing steel bars 6 in the shear wall body 1 in a welding mode, so that the vertically distributed reinforcing steel bars in the upper wall piece and the lower wall piece are welded with the steel structure connecting piece into a whole, force transmission is more uniform, and the stress performance of the structure is improved.
Specifically, the welding length of the top connecting plate 24 and the vertical connecting steel bars in the precast concrete shear wall is not less than 7 times of the diameter of the steel bars; the welding length of the bottom connecting plate 32 and the vertical connecting steel bars in the precast concrete shear wall is not less than 7 times of the diameter of the steel bars.
In this embodiment, when the precast concrete shear wall bears tension, pressure, shear force and bending moment, the stress transmission path is as follows:
(1) when the shear wall is in tension, the transmission path of the tension force is as follows:
the prefabricated concrete shear wall comprises an upper prefabricated concrete shear wall, vertically distributed reinforcing steel bars 6 of the upper prefabricated concrete shear wall, a lower steel structure connecting piece 3 of the upper prefabricated concrete shear wall, high-strength bolts 33, an upper steel structure connecting piece 2 of a lower prefabricated concrete shear wall, vertically distributed reinforcing steel bars 6 of the lower prefabricated concrete shear wall and the lower prefabricated concrete shear wall;
(2) when the shear wall is compressed, the pressure transmission path is as follows:
the method comprises the following steps of prefabricating a concrete shear wall on an upper portion, prefabricating a concrete shear wall bottom plate 31 on the upper portion, prefabricating a concrete shear wall first flange plate 21 on a lower portion, post-pouring concrete 5 on a middle node, and prefabricating a concrete shear wall on the lower portion;
(3) when the shear wall is sheared, the shear transfer path is as follows:
the prefabricated concrete shear wall comprises an upper prefabricated concrete shear wall, vertically distributed reinforcing steel bars 6 of the upper prefabricated concrete shear wall, a lower steel structure connecting piece 3 of the upper prefabricated concrete shear wall, high-strength bolts 33, an upper steel structure connecting piece 2 of a lower prefabricated concrete shear wall, vertically distributed reinforcing steel bars 6 of the lower prefabricated concrete shear wall and the lower prefabricated concrete shear wall;
(4) when the shear wall is bent, the shear wall can be decomposed into tension and pressure, and the force transmission path of the shear wall is the same as that of the tension and pressure.
In other embodiments, the utility model discloses a precast concrete shear force wall with steel structural connection spare can realize being equipped with the connection between the upper portion steel structural connection spare 2 of above-mentioned precast concrete shear force wall with the building foundation, also can realize not having the connection between the upper portion steel structural connection spare 2 with the precast concrete shear force wall of topmost layer.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.
Claims (10)
1. The precast concrete shear wall with the steel structure connecting pieces comprises a precast concrete shear wall body and is characterized in that the upper part of the precast concrete shear wall body is pre-embedded with the upper steel structure connecting pieces, and the lower part of the precast concrete shear wall body is pre-embedded with the lower steel structure connecting pieces;
the upper steel structure connecting piece comprises a first flange plate, a second flange plate, a middle web plate and a top connecting plate; the first flange plate is positioned at the upper part of the shear wall body and is connected with the wall body through a middle web plate embedded in the shear wall body; screw holes are formed in the first flange plate in the length direction, the first flange plate and the second flange plate are connected through a middle web plate, and the second flange plate is embedded in the shear wall body; the edges of the left side and the right side of the second flange plate are respectively provided with a vertically downward top connecting plate, and the top connecting plates are pre-embedded in the shear wall body;
the lower steel structure connecting piece comprises a bottom plate and a bottom connecting plate, the bottom plate is tightly attached to the bottom of the precast concrete shear wall body, the bottom connecting plate which is vertically upward is arranged on the bottom plate, the bottom connecting plate is pre-buried inside the shear wall body, high-strength bolts which penetrate through the bottom plate and are pre-buried in the shear wall body are arranged in the bottom plate, and the high-strength bolts correspond to screw holes in the first flange plates one to one.
2. The precast concrete shear wall with steel structural connecting members according to claim 1, wherein the first flange plate of the upper steel structural connecting member and the bottom plate of the lower steel structural connecting member have the same width and are both the thickness of the shear wall body.
3. The precast concrete shear wall with the steel structure connecting members according to claim 1, wherein the depth of the middle web plate of the upper steel structure connecting member embedded in the precast concrete shear wall body is 20-30 mm; the sum of the height of the middle web plate extending out of the top surface of the wall, the thickness of the first flange plate and the thickness of the bottom plate of the upper shear wall is equal to the thickness of the superposed floor slab.
4. The precast concrete shear wall with steel structural connecting members according to claim 1, wherein the first flange plate, the second flange plate, the middle web plate, the top connecting plate, the bottom plate and the bottom connecting plate are rectangular plates.
5. The precast concrete shear wall with the steel structure connecting members according to claim 1, wherein the thickness of the steel plate of the middle web is 15 to 25mm, and the thickness of the steel plates of the first flange plate, the second flange plate, the top connecting plate, the bottom plate and the bottom connecting plate is 8 to 15 mm.
6. The precast concrete shear wall with the steel structure connecting piece according to claim 1, wherein two rows of high-strength bolts are embedded in the bottom of the shear wall body, and the distance between the same row of high-strength bolts is not more than 500 mm.
7. The precast concrete shear wall with the steel structural connecting member according to claim 1, wherein the high-strength bolt has a diameter of 16 to 25 mm.
8. The precast concrete shear wall with the steel structure connecting piece according to claim 1, wherein a vertical distribution reinforcing steel bar and a horizontal distribution reinforcing steel bar are further arranged in the shear wall body, the diameter of the reinforcing steel bar is not less than 8mm, the distance between the vertical distribution reinforcing steel bars is 200-300 mm, and the distance between the horizontal distribution reinforcing steel bars is 300-400 mm.
9. The precast concrete shear wall with steel structural connecting members according to claim 8, wherein the width of the second flange plate of the upper steel structural connecting member is the same as the clear distance of the vertically distributed reinforcing steel bars on both sides of the shear wall, and the top connecting plate is welded with the vertically distributed reinforcing steel bars in the shear wall body; and the bottom connecting plate is welded and connected with the vertically distributed steel bars in the shear wall body.
10. The precast concrete shear wall with the steel structure connecting members according to claim 9, wherein the welding length of the top connecting plate and the vertical connecting steel bars in the precast concrete shear wall is not less than 7 times of the diameter of the steel bars; the welding length of the bottom connecting plate and the vertical connecting steel bars in the precast concrete shear wall is not less than 7 times of the diameter of the steel bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020733456.XU CN212336405U (en) | 2020-05-07 | 2020-05-07 | Precast concrete shear wall with steel construction connecting piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020733456.XU CN212336405U (en) | 2020-05-07 | 2020-05-07 | Precast concrete shear wall with steel construction connecting piece |
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| Publication Number | Publication Date |
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| CN212336405U true CN212336405U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020733456.XU Active CN212336405U (en) | 2020-05-07 | 2020-05-07 | Precast concrete shear wall with steel construction connecting piece |
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| CN (1) | CN212336405U (en) |
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2020
- 2020-05-07 CN CN202020733456.XU patent/CN212336405U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A prefabricated concrete shear wall with steel structural connectors Effective date of registration: 20231123 Granted publication date: 20210112 Pledgee: Bank of Suzhou Co.,Ltd. Hushuguan Development Zone Sub branch Pledgor: Suzhou wujiachen Construction Industry Co.,Ltd. Registration number: Y2023980067043 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |