CN115126120A - Assembled double-layer X-shaped steel plate supporting superposed shear wall - Google Patents
Assembled double-layer X-shaped steel plate supporting superposed shear wall Download PDFInfo
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- CN115126120A CN115126120A CN202210862389.5A CN202210862389A CN115126120A CN 115126120 A CN115126120 A CN 115126120A CN 202210862389 A CN202210862389 A CN 202210862389A CN 115126120 A CN115126120 A CN 115126120A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 239000011178 precast concrete Substances 0.000 claims abstract description 89
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 239000004567 concrete Substances 0.000 claims description 23
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 2
- 238000009417 prefabrication Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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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
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Panels For Use In Building Construction (AREA)
Abstract
The invention discloses an assembled double-layer X-shaped steel plate supported superposed shear wall, which comprises an A precast concrete plate, a B precast concrete plate and a connecting part, wherein the A precast concrete plate is arranged on the A precast concrete plate; the connecting part comprises a specially-made screw and a nut; reinforcing mesh sheets, hidden supporting steel plates and connecting steel plates are all pre-buried in the A, B precast concrete plates; the A, B precast concrete plates are precisely positioned and connected at the cavity through the special screw rods and then fastened through the nuts. The double-layer hidden support steel plates and the upper and lower wall connecting steel plates are in a shape of Chinese character 'ji', and are symmetrically arranged with the two walls, so that the aim of integrated prefabrication of a factory can be fulfilled, the field installation amount is reduced, the field construction efficiency is improved, the overall performance of the upper and lower shear walls is greatly improved, and the seismic performance of the shear walls is improved.
Description
Technical Field
The invention relates to the technical field of superposed shear walls, in particular to an assembled double-layer X-shaped steel plate supported superposed shear wall.
Background
The assembly type structure has the characteristics of high construction speed, high production efficiency, material saving, labor force production environment improvement and the like, and accords with the development direction of building industrialization and housing industrialization in China. The superposed shear wall is used as a common prefabricated component in the construction of the assembled building in China, and has the advantages of good integrity, excellent waterproof performance, strong fault-tolerant capability, convenient construction, light component dead weight, easy hoisting and the like.
At present, the superposed shear wall popularized in China is a concrete wallboard formed by connecting two layers of prefabricated reinforced concrete plates into a wallboard component with a middle cavity through truss reinforcements or connecting pieces and pouring concrete to fill the middle cavity after field installation. In the aspect of structural performance, the defects of weak vertical connection position, single anti-seismic defense line and the like mainly exist; in the aspect of construction, because the space between the concrete plates of the superposed shear wall is larger, the concrete filled in the cavity is too thick, and truss steel bars or connecting pull rods between the plates are dense, so that the on-site pouring difficulty is higher.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide the assembled double-layer X-shaped steel plate supported superposed shear wall, and the defects that the vertical joint is weak, the anti-seismic defense line is single, the truss steel bars or the connecting pull rods are too dense, the cavity is filled with too thick concrete, the indoor space is occupied, the cast-in-place process is complicated and the like in the prior art are overcome.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides an assembled double-deck X type steel sheet supports's superimposed shear wall, includes A piece precast concrete board and B piece precast concrete board, its characterized in that: the precast concrete slab comprises an A precast concrete slab and a B precast concrete slab which are connected through a connecting component, and concrete is poured into a cavity between the A precast concrete slab and the B precast concrete slab which are connected through the connecting component; the connecting part comprises a specially-made screw and a nut; reinforcing mesh sheets, hidden supporting steel plates and connecting steel plates are all pre-buried in the A, B precast concrete plates; the special screw rods are used for positioning and connecting A, B precast concrete plates at the cavity and then fastening the precast concrete plates through nuts at two ends.
And pre-buried sleeves are arranged in connecting holes for connecting the A precast concrete plates and the B precast concrete plates with the specially-made screws. And the embedded sleeve is welded with the reinforcing mesh, the hidden support steel plate and the connecting steel plate in the A precast concrete plates and the B precast concrete plates. The reinforcing mesh adopts a reinforcing mesh structure formed by orthogonally arranging and binding or welding reinforcing steel bars.
And a groove for embedding the nut is arranged outside a connecting hole connected with a special screw on the A precast concrete plate and the B precast concrete plate.
The reinforcing mesh is welded with the hidden supporting steel plate, and the hidden supporting steel plate is welded with the connecting steel plate.
The hidden supporting steel plate is an X-shaped steel plate and forms a shape of Chinese character 'ji' with the connecting steel plate.
The X-shaped steel plate is provided with a middle connecting point and four end connecting points; the middle connecting point is positioned in the centers of the A precast concrete plate and the B precast concrete plate; the four end connection points are respectively positioned at four corners of the precast concrete plates A and B; at least one connecting member is provided at the middle connecting point and each of the end connecting points.
The connecting steel plate is an upper wall connecting plate and a lower wall connecting plate; the upper wall connecting plate, the lower wall connecting plate and the X-shaped steel plate are both perforated steel plates.
The middle part of the special screw is thicker and not provided with threads than the two ends, and the two ends are provided with threads for positioning and clamping A, B precast concrete plates.
And mounting holes matched with the specially-made screws are formed in the upper wall connecting plate, the lower wall connecting plate and the X-shaped steel plate.
And punching the surfaces of the X-shaped steel plate and the upper and lower wall connecting plates along the length direction. By punching the steel plate, steel can be saved, integrity between the steel plate and concrete can be conveniently realized, and the bonding force between the steel-concrete combined structure is enhanced.
The X-shaped steel plate and the upper and lower wall connecting plates are symmetrically arranged with A, B precast concrete plates.
Compared with the prior art, the invention has the following beneficial effects:
1. in the novel superposed shear wall, the hidden support steel plate and the upper and lower wall connecting plates are pre-embedded in each wallboard, so that the whole prefabricated wallboard can be integrated in a factory, manpower and material resources are saved, the construction period is shortened, and the construction efficiency is improved; the hidden support steel plate and the upper and lower wall connecting plates are welded to form a shape of Chinese character 'Re', and are symmetrically arranged with the wall plate, so that the strength, bearing capacity and integrity of the shear wall are obviously improved, the thickness of each wall plate can be effectively reduced, and the indoor space is increased.
2. In this novel superimposed shear wall, purpose-built screw rod can carry out accurate location to two precast concrete boards, is used for blocking two wall bodies about simultaneously, and on-the-spot simple to operate is swift, has improved the connection performance of wall body about, has reduced the degree of difficulty of construction site concreting.
3. The vertical connection of the existing superposed shear wall technology is that an upper layer wall body and a lower layer wall body are connected into a whole through embedded steel bars in the lower layer wall body and wall body cavity cast-in-place concrete, and the upper layer prefabricated wall body and the lower layer prefabricated wall body are connected through thinner mortar joints, and experimental research shows that the part is a weak link under the action of horizontal load. To this technique not enough, this scheme provides a steel sheet connecting piece between upper and lower shear wall and pass through special screw rod and nut reinforcement with precast concrete board and be connected, has not only strengthened the joint strength of controlling the wallboard, has reduced the construction degree of difficulty, still inside the effect of playing a dark support of weak link department of connecting, has strengthened the joint strength of upper and lower superimposed shear wall, has improved the holistic side direction bearing capacity of shear wall.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural view of a novel laminated shear wall according to the present invention;
FIG. 2 is a schematic side view of a cross-sectional structure of the novel laminated shear wall of the present invention;
FIG. 3 is a detailed view of a screw and a nut specially made for the novel superposed shear wall according to the present invention;
FIG. 4 is a schematic structural view of a hidden supporting steel plate of the novel composite shear wall of the present invention;
FIG. 5 is a schematic structural view of a hidden supporting steel plate of the novel superposed shear wall of the present invention, which is arranged by X-shaped welding;
FIG. 6 is a schematic structural view of the connecting steel plates of the upper and lower walls of the novel composite shear wall of the present invention;
fig. 7 is a schematic structural view of the splicing of the X-shaped hidden supporting steel plate, the upper and lower wall connecting steel plates and a precast concrete slab a of the novel composite shear wall of the present invention;
fig. 8 is a schematic structural view of the assembled shear wall according to the present invention;
FIG. 9 is a schematic diagram showing details of a splicing structure of the novel laminated shear wall of the present invention;
fig. 10 is a schematic structural view of the integral connection of the double-layered upper and lower shear walls of the novel laminated shear wall of the present invention;
fig. 11 is a schematic structural view of a reinforcing mesh and an embedded sleeve of the novel superposed shear wall according to the present invention;
in the figure: 1, prefabricating a concrete slab by using an A piece; b pieces of precast concrete plates; 3. reinforcing mesh sheets; 4. pre-burying a sleeve; 5. a dark support steel plate; 6. connecting plates for upper and lower walls; 7. specially manufacturing a screw; 8. a nut; 9. a steel plate screw hole; 10. and punching the steel plate.
Detailed Description
In order to clearly understand the technical features, objects and effects of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the implementation of the present invention.
As shown in the figure, the invention provides an assembled double-layer X-shaped steel plate supported superposed shear wall, which comprises an A-piece precast concrete plate 1, a B-piece precast concrete plate 2 and a connecting part, wherein concrete is poured between the A-piece precast concrete plate and the B-piece precast concrete plate which are connected through the connecting part, and the A-piece precast concrete plate 1, the B-piece precast concrete plate 2 and the connecting part form an integrally stressed shear wall through the post-pouring concrete.
The structure of the connecting part is shown in fig. 3, and comprises a special screw 7 and a nut 8. Special screws 7 extend out of both sides of the a-piece precast concrete panel 1 and the B-piece precast concrete panel 2, and a pair of nuts 8 is provided on each side, see fig. 2.
The shape of the dark support steel plate 5 is designed into an X shape according to the square shapes of the A precast concrete plates 1 and the B precast concrete plates 2, and the dark support steel plate has a middle connecting point and four end connecting points; the middle connection points are positioned at four corners of the precast concrete plates A and B; the four end connection points are respectively positioned at four corners of the precast concrete plates A and B; at least one connecting part consisting of a specially made screw 7 and a nut 8 is arranged at the middle connecting point and each end connecting point.
In the embodiment shown in fig. 7, two connecting members are provided at the middle connection point and each of the end connection points.
In one embodiment, the hidden support steel plates 5 and the upper and lower wall connecting plates 6 are made of steel plates with holes.
A precast concrete board 1 and B precast concrete board 2 are inside all to be equipped with embedded sleeve 4, reinforcing bar net piece 3, dark supporting steel plate 5 and wall connection board 6 from top to bottom, and embedded sleeve 4 welds with reinforcing bar net piece 3, dark supporting steel plate 5 and wall connection board 6 from top to bottom. A special screw 7 of the connecting part is penetrated in the embedded sleeve 4.
The construction of the superposed shear wall comprises a component manufacturing process A of a prefabricated part of the superposed shear wall, an operation flow B of a single-layer superposed shear wall assembly process and a double-layer superposed shear wall assembly process C.
The method comprises the following steps of processing the novel superposed shear wall prefabricated part with the X-shaped steel plate support:
step A1, processing the reinforcing mesh of the A precast concrete slab: binding or welding reinforcing steel bars on the A precast concrete plate mould according to the design drawing requirements to prepare a reinforcing steel bar net piece of the A precast concrete plate;
step A2, punching a dark support steel plate: as shown in fig. 4, according to the design requirements, screw holes are formed in the positions, corresponding to the embedded sleeves, of the hidden support steel plate one to one, and punching is regularly performed along the length direction of the steel plate as a whole.
Step A3, manufacturing an X-shaped supporting steel plate: as shown in fig. 5, assembling and welding the punched steel plate manufactured in step a5 to manufacture an X-shaped supporting steel plate;
step A4, manufacturing prefabricated upper and lower wall connecting plates: as shown in fig. 6, according to the design requirements, screw holes are formed in the positions, corresponding to the embedded sleeves, of the upper wall connecting plate and the lower wall connecting plate one by one, and the whole body is punched along the length direction of the steel plate regularly to manufacture the prefabricated upper wall connecting plate and the prefabricated lower wall connecting plate.
Step A5, manufacturing a pre-buried integral structure of the precast concrete slab A: as shown in fig. 7, according to the design requirements, the reinforcing mesh is welded with the hidden supporting steel plate, and the hidden supporting steel plate is welded with the connecting steel plate; and then, the pre-buried sleeves correspond to the arrangement positions of all the steel plate bolt holes one by one and are welded and fixed on the reinforcing mesh sheets to form a pre-buried integral structure in the precast concrete slab A, as shown in fig. 11.
Step A6, pouring an A-piece precast concrete plate: pouring concrete in the die with the pre-buried integral structure arranged in the step A5 to the design elevation of the A precast concrete plate, fully vibrating the poured A precast concrete plate, moving the poured A precast concrete plate to a concrete curing area for curing until the curing requirement is met, and demolding after curing is finished to prepare a precast A precast concrete plate;
step A7, manufacturing a B-piece precast concrete plate: the precast concrete plates B are made by adopting the same steps of A1-A6 as the precast concrete plates A and A are completely the same in size and structure;
the assembly process of the single-layer novel type superposed shear wall with the X-shaped steel plate support is carried out according to the following steps:
step B1, reinforcing the A precast concrete plate by adopting a special screw: vertically placing the A precast concrete plates prepared in the step A6 by using a crane, penetrating one side of a screw rod through a hole where an embedded sleeve of the A precast concrete plates is located, and fixedly connecting the A precast concrete plates by using a nut in a connecting mode as shown in figure 7;
step B2, positioning and reinforcing the B-piece precast concrete plate: and (3) vertically placing the B precast concrete plates prepared in the step (A7) by using a crane, positioning by using a special screw rod, penetrating the other side of the screw rod through a pre-buried hole of the precast B precast concrete plates, and performing reinforcement connection by using a nut in a connection mode shown in figure 8 to obtain the single-layer superposed shear wall with the steel plate hidden support.
The novel double-layer assembly process of the superposed shear wall with the X-shaped steel plate support is carried out according to the following steps:
step C1, assembling upper and lower wall members: according to the design requirements, the superposed shear wall manufactured in the step B2 is placed at a required position and is connected with the ground for reinforcement, and then the superposed shear wall manufactured in the step B2 is assembled on the next layer of shear wall through a crane to obtain a double-layer integral structure as shown in the figure 10.
Step C2, concrete is poured into the cavity of the superposed shear wall: according to the requirements of a design drawing, pouring concrete into a cavity inside the concrete slab to reach the elevation of the concrete slab, and after full vibration is finished, obtaining a double-layer shear wall connected with an upper layer and a lower layer;
in conclusion, the laminated shear wall structure with the steel plate hidden supports has the advantages that the reinforcing mesh sheets, the hidden support steel plates, the upper wall connecting plates and the lower wall connecting plates are all embedded parts of A, B precast concrete plates, the embedded steel plates can be embedded into the two precast concrete plates of the shear wall, a combined structure formed by three materials of concrete, reinforcing steel bars and steel plates is formed, various excellent performances of the combined structure can be fully exerted, and compared with the traditional laminated shear wall in China, the bearing capacity, the overall performance and the anti-seismic performance of the combined structure are remarkably improved, so that the casting thickness of the concrete plates can be effectively reduced, the indoor use area is increased, materials are saved, and the in-situ casting process is simpler.
According to the invention, the upper and lower shear walls are connected by the specially-made screw and nut reinforced punched upper and lower wall connecting steel plates, and the upper and lower wall connecting steel plates are connected into a whole by pouring concrete at the joint of the upper and lower layers.
Supplementary explanation: although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that changes may be made in the above embodiments and equivalents may be substituted for elements thereof. Any modification, equivalent replacement, improvement, addition, detail change, etc. made within the principle of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an assembled double-deck X type steel sheet supports's superimposed shear wall, includes A piece precast concrete board and B piece precast concrete board, its characterized in that: the prefabricated concrete slab comprises an A-piece precast concrete slab, a B-piece precast concrete slab and a connecting part, wherein the A-piece precast concrete slab and the B-piece precast concrete slab are connected through the connecting part, and concrete is poured into a cavity between the A-piece precast concrete slab and the B-piece precast concrete slab which are connected through the connecting part; the connecting part comprises a specially-made screw and a nut; reinforcing steel bar meshes, hidden supporting steel plates and connecting steel plates are all pre-buried in the A, B precast concrete plates; the special screw rods are used for positioning and connecting A, B precast concrete plates at the cavity and then fastening the precast concrete plates through nuts at two ends.
2. The laminated shear wall of claim 1, wherein: and pre-buried sleeves are arranged in connecting holes of the A precast concrete plate and the B precast concrete plate connected with the special screw rods.
3. The laminated shear wall of claim 2, wherein: and the embedded sleeve is welded with the reinforcing mesh, the hidden support steel plate and the connecting steel plate in the A precast concrete plate and the B precast concrete plate.
4. The laminated shear wall of claim 3, wherein: and grooves for embedding the nuts are arranged outside the connecting holes for connecting the A precast concrete plate and the B precast concrete plate with the special screw rods.
5. The laminated shear wall of claim 1, wherein: the reinforcing mesh is welded with the hidden support steel plate, and the hidden support steel plate is welded with the connecting steel plate.
6. The laminated shear wall of claim 5, wherein: the hidden supporting steel plate is an X-shaped steel plate and forms a shape of Chinese character 'ji' with the connecting steel plate.
7. The laminated shear wall of claim 6, wherein: the X-shaped steel plate is provided with a middle connecting point and four end connecting points; the middle connecting point is positioned in the centers of the A precast concrete plate and the B precast concrete plate; the four end connection points are respectively positioned at four corners of the precast concrete plate A and the precast concrete plate B; at least one connecting member is provided at the middle connecting point and each of the end connecting points.
8. The laminated shear wall of claim 6, wherein: the connecting steel plate is an upper wall connecting plate and a lower wall connecting plate; the upper wall connecting plate, the lower wall connecting plate and the X-shaped steel plate are both perforated steel plates.
9. The superposed shear wall of claim 7, wherein: the middle part of the special screw is thicker and has no screw thread than the two ends, and the two ends are provided with screw threads for clamping A, B precast concrete plates.
10. The laminated shear wall of claim 7, wherein: and mounting holes matched with the specially-made screws in the connecting parts are formed in the upper wall connecting plate, the lower wall connecting plate and the X-shaped steel plate.
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| CN202210862389.5A CN115126120A (en) | 2022-07-20 | 2022-07-20 | Assembled double-layer X-shaped steel plate supporting superposed shear wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876262A (en) * | 2021-12-08 | 2022-08-09 | 长沙理工大学 | Superimposed shear wall and building |
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