CN207211428U - A kind of fabricated shear wall plate and its wallboard connecting structure - Google Patents

Abstract

A prefabricated shear wall panel and its wall panel connection structure. The wall panel includes a concrete body and a steel skeleton poured in the concrete body. The steel skeleton includes a group of inserts arranged at the top of the wall panel at even intervals along the length direction of the wall panel. Connecting components, corresponding socket components arranged at the lower end of the wallboard, and vertical through-length steel bar groups vertically connected between the corresponding socket components and the socket components. The utility model designs a combined steel member in order to optimize the connection nodes between the wall panels, including the plug-in assembly connected to the upper end of the wall board and the corresponding plug-in assembly connected to the lower end of the wall board, through which the upper wall board accepts the assembly The connection bottom plate of the base plate is correspondingly plugged into the connection bolts of the lower wallboard and fastened by the connection nuts, and finally, the cement mortar or gypsum sealing treatment in the joints and cavities is carried out to realize the efficient connection of the prefabricated shear wall. The whole process is simple and quick, the connection strength is high, and it is easy to disassemble and assemble, which is beneficial to the recycling of prefabricated components.

Description

A prefabricated shear wall panel and its wall panel connection structure

technical field

The utility model relates to the field of building structures, in particular to an assembled shear wall structure.

Background technique

At this stage, as my country vigorously promotes the industrialization of housing, a number of prefabricated housing projects have been carried out in various places. At the same time, scientific research institutes continue to heat up research on key technologies of prefabricated buildings. However, the development of prefabricated buildings in my country is still in the initial stage, and many technologies are imported from abroad: problems such as complex construction technology and immature applications are becoming more and more prominent, and the construction in some areas is far from meeting the specification requirements, so prefabricated construction does not Purposes such as high efficiency and convenience are not achieved.

In order to adapt to the continuous upgrading of the current construction field, more and more high-rise concrete buildings need to be demolished. Many of the structural components have not reached the end of their service life. Therefore, the demolition project will consume a lot of manpower, material and man-hours. For this reason, the development and promotion of prefabricated buildings is not only to achieve energy-saving, high-efficiency, green construction, and material-saving effects, but more importantly, to achieve the purpose of being able to assemble and disassemble.

Utility model content

The purpose of this utility model is to provide a prefabricated shear wall panel and its wall panel connection structure, to solve the technical problems of inconvenient disassembly, complex construction and low efficiency of the traditional prefabricated shear wall.

In order to achieve the above object, the utility model adopts the following technical solutions:

A prefabricated shear wall panel, comprising a concrete main body and a steel skeleton poured in the concrete main body, the steel skeleton includes a group of plug-in components arranged at the top of the wall board at even intervals along the length direction of the wall board, corresponding plug-in components The component is arranged on the receiving component at the lower end of the wallboard and the vertical through-length steel bar group vertically connected between the corresponding receiving component and the plugging component. The wall panel has a complete structure without exposed longitudinal steel bars. The thickness of the wall panel is 160-200mm, and the thickness of the protective layer of the steel skeleton is 15-25mm. The spacing is considered and adjusted according to the distribution of longitudinal steel bars.

The plug-in components are higher than the upper surface of the concrete main body, a group of upper horizontal connecting ribs are horizontally connected between adjacent plug-in components, and a group of upper vertical reinforcing ribs are vertically connected to each plug-in component.

The receiving components are exposed to the concrete main body, the adjacent receiving components are horizontally connected with lower horizontal connecting ribs, and each receiving component is vertically connected with lower vertical reinforcing ribs.

The plug-in assembly is not less than two groups, including a plug-in piece and connecting bolts vertically connected to the plug-in piece.

The connector includes a rectangular top plate and a pair of ribs vertically connected to the lower surface of the top plate. The length of the member is 150-250 mm, the height is 60-80 mm, the width is 120-160 mm, and the thickness of each steel plate is 5-20 mm. The ribs are completely poured into the concrete main body, part or all of the top plate is exposed on the upper surface of the concrete main body, the width of the top plate is adapted to the thickness of the concrete main body, and the top plate protrudes 3 to 5 mm from the upper surface of the concrete main body when the connector is pre-embedded , to protect the wallboard, and at the same time reserve a space for applying cement mortar to the wall without connectors to ensure the connection strength of the connection joint.

There are at least two connecting bolts, which are evenly spaced and fixed on the upper surface of the top plate, and the diameter of the bolts is 15-30mm.

The number of each group of the upper vertical reinforcing ribs is not less than two, and they are evenly spaced between the two ribs of the connector, and their ends are fixed on the lower surface of the top plate.

The number of each group of upper horizontal connecting ribs is not less than two, and they are evenly spaced between adjacent vertical reinforcing ribs.

The receiving assembly includes a receiving piece, a connecting bottom plate and a horizontal reinforcing plate connected to the receiving piece. The thickness of the connecting bottom plate and the horizontal reinforcement plate is 5-15mm, and the distance between the horizontal reinforcement plate and the top of the receiving part is 50-60mm. The two plates work together to strengthen the overall strength of the receiving component. , no need to set up molds to stop concrete pouring, and play a role in controlling the length of pre-embedded reinforcing bars.

The cross-section of the receiving part is H-shaped, the length of the member is 150-250mm, the height is 100-150mm, the width is 120-160mm, and the thickness of each steel plate is 5-20mm. A horizontal reinforcing plate is connected horizontally and symmetrically, and a connecting bottom plate is connected to the bottom of the receiving part. The connecting bottom plate is correspondingly opened with a connecting hole passing through the connecting bolt. Easy to install and connect.

The part above the horizontal reinforcing plate in the receiving assembly is poured into the concrete main body, and the width of the flange plate and the connecting bottom plate are consistent and less than the thickness of the concrete main body.

The number of each group of the lower vertical reinforcing ribs is not less than two, and they are evenly spaced on both sides of the web of the receiving member, and their ends are fixed on the upper surface of the horizontal reinforcing plate. The number of each group of the lower horizontal connecting ribs is not less than two, and they are evenly spaced between the flange plates of the adjacent receiving parts.

Generally, there are 2 to 4 vertical reinforcing ribs, which are mainly pre-buried in the wall panels, to strengthen the strength of the steel skeleton, and at the same time ensure the connection strength and connection effect of the later connection nodes; generally 2 to 4 horizontal connecting ribs, in order to strengthen the wall The strength of the top and bottom of the board ensures the integrity of the wall board. The diameter of the steel bar is 8-15mm, and the pre-embedded length is 300-500mm.

The vertical full-length steel bar group includes at least four vertical full-length steel bars, the upper ends of which are evenly arranged on the outside of the rib plate of the connector and fixed on the lower surface of the top plate; the lower ends of which are evenly arranged on both sides of the web of the socket , between the flange plates, and fixed on the upper surface of the horizontal reinforcement plate.

The upper surface of the concrete main body is a rough plane, the lower surface of the concrete main body has rectangular straight teeth, and the rectangular straight teeth are located between adjacent receiving components, and the lower surface thereof is flush with the lower surface of the receiving component.

A protective layer module is connected in the rectangular cut formed between the rectangular straight teeth and the outer side of the receiving assembly, and the outer side of the protective layer module is flush with the outer side of the concrete main body.

The protective layer module is a rectangular frame, wherein the height of the lower frame is consistent with the thickness of the connecting bottom plate, and the width of the side frame is consistent with the thickness of the flange plate. The protective layer module is made of wood, which is placed during the prefabrication process of the wall panels and fixed on the pouring formwork through the connectors. When the wall panels are prefabricated, the concrete is prevented from entering the receiving components, and the thickness of the steel skeleton protective layer can be controlled at the same time. A prefabricated shear wall panel connection structure comprising the prefabricated shear wall panel, comprising an upper prefabricated shear wall panel, a lower prefabricated shear wall panel and a floor slab, the lower prefabricated shear wall panel The plug-in components of the upper prefabricated shear wall panels are assembled and connected correspondingly; the connecting bolts of the lower prefabricated shear wall panels correspond to pass through the connection holes of the connection base plates of the upper prefabricated shear wall panels and pass through The connection nut is tight.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

The utility model overcomes the shortcomings of slow installation speed and low efficiency of the traditional prefabricated shear wall, optimizes the connection node structure between the wall panels, makes the connection structure between the wall panels reliable, simple in structure, convenient in construction, easy to install, and convenient Disassemble.

In order to optimize the connection nodes between the wall panels, the utility model specially designs a combined steel component, including the plug-in assembly connected to the upper end of the wall board and the corresponding plug-in assembly connected to the lower end of the wall board, in order to withstand the horizontal earthquake shear The web plate of the receiving part and the rib plate of the connector are set parallel to the length direction of the wallboard, and the connecting bottom plate in the upper wallboard receiving component is correspondingly plugged into the connecting bolt of the lower wallboard and fastened by the connecting nut , and finally carry out procedures such as cement mortar or gypsum sealing in joints and cavities to realize efficient connection of prefabricated shear walls. The whole process is simple and fast, with high connection strength and easy disassembly, which is conducive to the recycling of prefabricated components .

(1) The method of the utility model adopts bolt connection, which has reliable connection, clear force transmission, convenient installation, and obviously improves the construction speed.

(2) Use plastering mortar to protect the receiving components to avoid component corrosion, facilitate later disassembly, and play the role of recycling prefabricated components.

(3) Adopting the connection method of connecting components and plugging components, the prefabricated shear wall can be quickly installed and positioned, the stiffness of node connection can be increased, and the design principle of strong nodes and weak components can be realized.

(4) This joint structure has good seismic performance, and at the same time ensures good stability of the wall connection.

(5) The design of the steel frame takes into account the integrity of the wall panel stress, and uses reinforcing ribs to strengthen the strength of some concrete wall panels; from the perspective of the steel frame itself, the design of the reinforcing plate enhances the overall stability of the components and ensures that the wall Safe and reliable.

(6) Built-in through steel bars to ensure the force of the shear wall, so that the bearing capacity will not be reduced.

The utility model can be widely used in assembled shear wall structures.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic diagram of the structure of the assembled shear wall of the present invention.

Fig. 2 is a schematic diagram of the steel skeleton structure of the assembled shear wall of the present invention.

Fig. 3 is a structural schematic diagram of the assembled shear wall receiving component of the present invention.

Fig. 4 is a structural schematic diagram of the assembled shear wall connector of the present invention.

Fig. 5 is a schematic diagram of the connection structure of the assembled shear wall of the present invention.

Fig. 6 is an enlarged schematic diagram of the connection structure of the assembled shear wall of the present invention.

Reference signs: 1-receiving piece, 1.1-flange plate, 1.2-web plate, 2-insert piece, 2.1-top plate, 2.2-rib plate, 3-upper vertical stiffener, 4-upper horizontal connecting rib, 5-connecting bolts, 6-connecting nuts, 7-upper assembled shear wall panel, 8-lower assembled shear wall panel, 9-connecting base plate, 10-horizontal reinforcement plate, 11-protective layer module, 12-vertical 13-lower vertical reinforcing bars, 14-lower horizontal connecting bars, 15-concrete main body, 16-steel skeleton.

Detailed ways

Referring to the embodiment shown in Figure 1, this prefabricated shear wall panel includes a concrete body 15 and a steel skeleton 16 poured in the concrete body, as shown in Figure 2, the steel skeleton 16 includes a set of lengths along the length of the wall panel Direction, the plug-in components arranged at the upper end of the wall board at even intervals, the corresponding plug-in components arranged at the lower end of the wall board, and the vertical through-length steel bar group 12 vertically connected between the corresponding receiving component and the plug-in component, ; The plug-in components are higher than the upper surface of the concrete main body, a group of upper horizontal connecting ribs 4 are horizontally connected between adjacent plug-in components, and a group of upper vertical reinforcing ribs 3 are vertically connected to each plug-in component; The receiving components are exposed to the concrete main body, and the adjacent receiving components are horizontally connected with a lower horizontal connecting rib 14, and each receiving component is vertically connected with a lower vertical reinforcing rib 13; the upper surface of the concrete main body is Rough plane, the lower surface of the concrete main body has rectangular straight teeth, and the rectangular straight teeth are located between adjacent receiving components, the lower surface of which is flush with the lower surface of the receiving component, the wallboard has no exposed longitudinal steel bars, and the thickness of the wallboard is 200mm.

Referring to Fig. 4, there are five sets of the socket assembly, including the socket 2 and the connecting bolts 5 vertically connected to the socket 2; the socket 2 includes a rectangular top plate 2.1 and a pair of vertical connections The rib plate 2.2 on the lower surface of the top plate has a length of 200mm, a height of 70mm, and a width of 160mm, and the thickness of each steel plate is 15mm; the rib plate 2.2 is parallel to the length direction of the wall plate, and is completely poured in the concrete body, and the top plate exposes the concrete body The upper surface is 5mm, and the width of the top plate is adapted to the thickness of the concrete main body; the diameter of the connecting bolts 5 is 25mm, and there are four of them, which are evenly spaced and fixed on the upper surface of the top plate 2.1.

The number of each group of the upper vertical reinforcing ribs 3 is four, which are evenly spaced between the two ribs 2.2 of the connector, and their ends are fixed on the lower surface of the top plate 2.1; each of the upper horizontal connecting ribs 4 The number of groups is two, which are evenly spaced between adjacent vertical reinforcing ribs 3 . The diameter of the welded reinforcement on each steel member is 12mm, and the pre-embedded length is 450mm.

Referring to Fig. 3, the receiving assembly includes a receiving part 1, a connecting bottom plate 9 and a horizontal reinforcing plate 10 connected to the receiving part 1; parallel, the length is 200mm, the height is 120mm, the width is 160mm, and the thickness of each steel plate is 15mm; the two sides of the web 1.2 and the two flange plates 1.1 are connected horizontally and symmetrically with a horizontal reinforcing plate 10, and the distance between the horizontal reinforcing plate 10 and the flange The top of the plate is 60mm, and the bottom of the receiving part 1 is connected with a connecting bottom plate 9, and the connecting bottom plate 9 is correspondingly opened with a connecting hole passing through the connecting bolt 5. The connecting hole is elliptical, 3mm larger than the diameter of the connecting bolt, and The center line of the connecting bottom plate on both sides of the plate is equally divided; the thickness of the connecting bottom plate 9 and the horizontal reinforcing plate 10 is 10mm, and the part above the horizontal reinforcing plate in the receiving assembly is poured in the concrete main body, and the flange plate 1.1 and connecting The width of the bottom plate 9 is consistent and smaller than the thickness of the concrete main body.

The number of each group of the lower vertical reinforcing ribs 13 is four, evenly spaced on both sides of the web 1.2 of the receiving piece, and its ends are fixed on the upper surface of the horizontal reinforcing plate 10; each group of the lower horizontal connecting ribs 14 There are two in number, and they are evenly spaced between the flange plates 1.1 of adjacent receiving parts.

The vertical full-length steel bar group 12 includes four vertical full-length steel bars, and the steel bar specification is a third-grade steel bar with a diameter of 10mm and a spacing of 200mm; ; Its lower end is evenly arranged on both sides of the web of the receiving part and between the flange plates, and is fixed on the upper surface of the horizontal reinforcing plate 10.

As shown in Figure 5, a prefabricated shear wall panel connection structure using the prefabricated shear wall panel described above includes an upper prefabricated shear wall panel 7, a lower prefabricated shear wall panel 8 and a floor slab. The plug-in components of the lower prefabricated shear wall panels 8 are assembled and connected with the receiving components of the upper prefabricated shear wall panels 7; wherein the connecting bolts 5 of the lower prefabricated shear wall panels 8 pass through to the upper prefabricated shear wall panels correspondingly. In the connection hole of the connection base plate 9 of force wallboard 7 and fasten by connection nut 6.

Referring to Fig. 6, a protective layer module 11 is connected in the rectangular slit formed between the rectangular straight tooth and the outside of the receiving assembly, and the outer surface of the protective layer module 11 is flush with the outer surface of the concrete main body; the protective layer The module 11 is a rectangular frame made of wood, wherein the height of the lower frame is consistent with the thickness of the connecting bottom plate, the width of the side frame is consistent with the thickness of the flange plate, and the thickness of the protective layer module 11 is consistent with that of the steel skeleton protective layer is 20mm.

A construction method for the connection structure of fabricated shear wall panels as described:

Step 1, prefabricate and process the assembled shear wall panel: place the protective layer module 11 during the process of prefabricating the wall panel.

Step 2, transporting the processed prefabricated shear wall panel to the construction site for on-site assembly construction.

Step 3, install the lower prefabricated shear wall panel 8 .

Step 4, hoisting the upper prefabricated shear wall panel 7 to the designated position.

Step 5, connect the receiving component of the upper prefabricated shear wall panel 7 to the plug-in component of the lower prefabricated shear wall panel 8: connect the connecting hole of the upper prefabricated shear wall panel 7 to the lower prefabricated shear wall panel 8's connecting bolts.

Step six, remove the protective layer module 11 of the upper prefabricated shear wall panel 7 .

Step 7, by tightening the connecting nut 6, connect and fix the upper prefabricated shear wall panel 7 and the lower prefabricated shear wall panel 8: screw the connecting nut into the connecting bolt, and tighten it with a wrench.

Step 8, seal at the joint position: seal the gaps at the joint position of the wallboard and the exposed steel components, mainly using cement mortar for sealing.

Step 9, perform antirust treatment on the exposed steel skeleton part: apply antirust agent to the remaining exposed steel skeleton part, such as the plug-in component part of the upper prefabricated shear wall panel 7 .

Step ten, repeat steps four to nine until the construction of the prefabricated shear wall panel connection structure is completed.

In Step 1 shown, the prefabricated construction of the prefabricated shear wall panels, the specific steps are as follows:

Step 1, assembling the steel skeleton 16: complete the installation of the receiving component, the plug-in component, and the reinforcing bar in sequence.

Step 2, connecting the protective layer module 11 and the pouring formwork: connecting and fixing the wooden protective layer module to the formwork through connectors such as iron nails.

Step 3, pouring the concrete main body 15 .

Step 4, carry out concrete curing.

Step 5, remove the formwork and complete the prefabrication of the wall panels.

Claims (10)

1. An assembled shear wall panel, comprising a concrete main body (15) and a steel skeleton (16) poured in the concrete main body, characterized in that: the steel skeleton (16) includes a group along the length direction of the wall panel, The plug-in components arranged at the upper end of the wall board at even intervals, the socket components arranged at the lower end of the wall board corresponding to the plug-in components, and the vertical through-length steel bar groups (12) vertically connected between the corresponding socket components and the plug-in components; The plug-in components are higher than the upper surface of the concrete main body, a set of upper horizontal connecting ribs (4) are horizontally connected between adjacent plug-in components, and a set of upper vertical reinforcing ribs (4) are vertically connected to each plug-in component ( 3); A lower horizontal connecting rib (14) is horizontally connected between the receiving components and the exposed concrete main body, and each receiving component is vertically connected with a lower vertical reinforcing rib (13). 2. The prefabricated shear wall panel according to claim 1, characterized in that: said plug-in components are not less than two groups, including plug-in pieces (2) and vertically connected to the plug-in pieces (2) connecting bolts (5); The connector (2) includes a rectangular top plate (2.1) and a pair of ribs (2.2) vertically connected to the lower surface of the top plate, wherein the ribs (2.2) are completely poured into the concrete body, and part or all of the top plate is exposed to the concrete The width of the upper surface of the main body and the top plate is adapted to the thickness of the concrete main body; There are at least two connecting bolts (5), which are evenly spaced and fixed on the upper surface of the top plate (2.1). 3. The prefabricated shear wall panel according to claim 2, characterized in that: the number of each group of the upper vertical reinforcing ribs (3) is not less than two, and are evenly spaced on the two ribs of the connector (2.2), the end of which is fixed on the lower surface of the top plate (2.1); The number of each group of the upper horizontal connecting ribs (4) is not less than two, and are evenly spaced between the adjacent upper vertical reinforcing ribs (3). 4. The prefabricated shear wall panel according to claim 3, characterized in that: the receiving assembly includes a receiving part (1), a connecting bottom plate (9) and a horizontal reinforcing plate ( 10); The cross-section of the receiving part (1) is H-shaped, horizontal reinforcement plates (10) are connected horizontally and symmetrically on both sides of the web (1.2) and between the two flange plates (1.1), and the bottom of the receiving part (1) is connected with Connecting the base plate (9), the connecting base plate (9) is correspondingly opened with connecting holes passing through the connecting bolts (5); The part above the horizontal reinforcing plate in the receiving assembly is poured into the concrete main body, and the width of the flange plate (1.1) and the connecting bottom plate (9) are consistent and less than the thickness of the concrete main body. 5. The prefabricated shear wall panel according to claim 4, characterized in that: the number of each group of the lower vertical reinforcing ribs (13) is not less than two, and the webs (1.2 ) on both sides, the ends of which are fixed on the upper surface of the horizontal reinforcing plate (10); The number of each group of the lower horizontal connecting ribs (14) is not less than two, and they are evenly spaced between the flange plates (1.1) of the adjacent receiving parts. 6. The prefabricated shear wall panel according to claim 5, characterized in that: the vertical full-length steel bar group (12) includes at least four vertical full-length steel bars, the upper ends of which are uniformly arranged on the connector ribs The outer side of the plate is fixed on the lower surface of the top plate; its lower end is evenly arranged on both sides of the web of the socket and between the flange plates, and fixed on the upper surface of the horizontal reinforcement plate (10). 7. The prefabricated shear wall panel according to claim 6, characterized in that: the upper surface of the concrete main body is flat, the lower surface of the concrete main body has rectangular straight teeth, and the rectangular straight teeth are located in the adjacent receiving components between, and its lower surface is flush with the lower surface of the receiving component. 8. The prefabricated shear wall panel according to claim 7, characterized in that: a protective layer module (11) is connected in the rectangular cut formed between the rectangular straight tooth and the outside of the receiving assembly, and the protective layer module ( 11) The outer surface of the concrete body is flush with the outer surface of the concrete body; The protective layer module (11) is a rectangular frame, wherein the height of the lower frame is consistent with the thickness of the connecting bottom plate, and the width of the side frame is consistent with the thickness of the flange plate. 9. The prefabricated shear wall panel according to claim 8, characterized in that: the web of the receiving member and the rib of the connector are both arranged parallel to the length direction of the wall panel. 10. A prefabricated shear wall panel connection structure comprising the prefabricated shear wall panel according to any one of claims 1 to 9, comprising an upper prefabricated shear wall panel (7), a lower prefabricated shear wall The panel (8) and the floor slab are characterized in that: the plug-in components of the lower prefabricated shear wall panel (8) are assembled and connected with the receiving components of the upper prefabricated shear wall panel (7); Among them, the connecting bolts (5) of the lower assembled shear wall panels (8) pass through the connecting holes of the connecting bottom plates (9) of the upper assembled shear wall panels (7) and are fastened by connecting nuts (6) .