Fabricated tenon-and-mortise connection composite wall-plate joint

Abstract

The utility model discloses an assembly type mortise and tenon connection composite wall-plate node, the node is divided into a standard layer structure and a top layer structure, the standard layer structure comprises a composite wall, a composite floor, a split bolt and two L-shaped angle steels; the composite wall of the standard layer structure is vertically arranged, a composite floor is vertically installed on the side face of the composite wall, and the composite floor is connected with the composite wall through split bolts and two pieces of L-shaped angle steel. The top layer structure comprises a composite wall, a composite floor, a shear-resistant stud and a piece of L-shaped angle steel; the composite wall of the top layer structure is vertically arranged, a composite floor slab is vertically installed on the top of the side face of the composite wall, and the composite floor slab is connected with an L-shaped angle steel through a shear-resistant stud. According to the connecting structure, the wallboards can be meshed with one another and are firmly connected, so that the overall strength, rigidity and stability of the structure are improved, and meanwhile the requirement for rapid installation of an assembly type building is met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to civil engineering prefabricated assembly type combination technical field, concretely relates to a kind of prefabricated mortise and tenon connection combination wall-plate node. BACKGROUND

[0002] In modern construction engineering, prefabricated building is gradually becoming the mainstream trend of development of building industry due to its high efficiency, environmental protection and energy saving and other advantages.Prefabricated building refers to the building mode of prefabrication in factory and assembly on site, and the core lies in the manufacturing and installation of various prefabricated components, and wallboard is one of important components in prefabricated building.

[0003] Prefabricated combination structure wallboard is usually composed of concrete, steel and the like, and its structural performance and installation quality directly affect the safety and use performance of entire building.In practical application, the connection mode of prefabricated wallboard is crucial, which not only affects the overall strength and stability of wallboard, but also relates to the functions of waterproofing, fireproofing and sound insulation of building.

[0004] Traditional prefabricated wallboard connection modes mainly include dry work method connection and wet work method connection.Dry work method connection usually adopts mechanical connecting pieces such as bolt and steel sleeve, and this mode is simple to install and short in construction period, but may face the problem of insufficient seismic performance in high-rise building.

[0005] Wet work method connection usually uses grouting and grouting technology, and wallboard is fixed together by cement mortar or other adhesive materials, and although its integrity is good, construction is complex, construction period is long, and cracks and other problems are prone to occur under the influence of temperature change and humidity. SUMMARY

[0006] In order to overcome the above technical problems, the purpose of the utility model is to provide a kind of prefabricated mortise and tenon connection combination wall-plate node, which makes profiled steel plate in combination floor embedded into combination wall reserved groove through mortise and tenon structure, wherein the profiled steel plate is wave-shaped steel plate with same wave trough and ridge width and 90° angle between wave trough and ridge, without complex welding and grouting technology, so that wallboard is mutually engaged and firmly connected to improve the strength, rigidity and stability of structure whole, and also meet the demand of rapid installation of prefabricated building.

[0007] In order to achieve the above purpose, the utility model adopts the technical scheme of:

[0008] A kind of prefabricated mortise and tenon connection combination wall-plate node, node is divided into standard layer structure and top layer structure, standard layer structure includes combination wall 1, combination floor 2, tension bolt 3 and two L-shaped angle steels 4;

[0009] The standard layer structure of the combined wall 1 is vertically arranged, and the combined floor 2 is vertically arranged on the side of the combined wall 1, and the combined floor 2 is connected with the combined wall 1 through the tension bolt 3 and the two L-shaped angle steels 4;

[0010] The top layer structure comprises the combined wall 1, the combined floor 2, the shear bolt 11 and the L-shaped angle steel 4.

[0011] The combined wall 1 of the top layer structure is vertically arranged, and the combined floor 2 is vertically arranged on the top of the side of the combined wall 1, and the combined floor 2 is connected through the shear bolt 11 and the L-shaped angle steel 4.

[0012] The combined wall 1 comprises the steel plate one 5-1 and the steel plate two 5-2 on the outside, and the recycled concrete wall 6 is arranged between the steel plate one 5-1 and the steel plate two 5-2.

[0013] The combined wall 1 of the standard layer is provided with the profiled steel plate-shaped grooves 7 at the connecting part with the combined floor 2, the grooves 7 are arranged in sequence and at equal intervals, and the two L-shaped angle steels 4 are arranged above and below the grooves 7, one side of the L-shaped angle steel 4 is embedded in the inside of the combined wall 1 and forms an integral whole with the recycled concrete wall 6, and the other side is perpendicular to the wall body and is located outside the wall body of the combined wall 1, and the L-shaped angle steel 4 outside the wall body is uniformly provided with bolt holes along the length direction.

[0014] The combined floor 2 comprises the outer concrete 8 and the profiled steel plate 9, the profiled steel plate 9 is arranged at the end of the outer concrete 8, the profiled steel plate-shaped groove 7 has the same size as the profiled steel plate 9, and the profiled steel plate 9 is inserted into the profiled steel plate-shaped groove 7 on the construction site.

[0015] The profiled steel plate 9 is arranged at the end of the profiled steel plate 9, and the profiled steel plate 9 is arranged at the end of the profiled steel plate 9.

[0016] The combined wall 1, the combined floor 2 and the L-shaped angle steel 4 are tightly connected through the tension bolt 3, form an integral structure, and the micro-expanding cement is injected into the gap in the bolt hole, so that the combined wall 1 has the characteristics of good connection integrity of the wet operation method.

[0017] The combined wall 1 of the top layer is welded with the rectangular steel pipe 12 outside, the width of the rectangular steel pipe 12 matches the cross-sectional size of the profiled steel plate 9, and the L-shaped angle steel 4 is embedded on the upper and lower sides of the rectangular steel pipe 12, and the L-shaped angle steel 4 is embedded in the wall body and forms an integral whole with the recycled concrete wall 6 on one side, and is perpendicular to the combined wall on the other side and is used for connecting with the combined floor 2.

[0018] The profiled steel plate 9 in the composite floor 2 and the rectangular steel pipe 12 welded outside the composite wall 1 are overlapped to form an integral whole, the top layer composite wall 1, the composite floor 2 and the L-shaped angle steel 4 are connected by the shear bolt 11, and finally the pore in the bolt hole is filled with the micro-expansion cement.

[0019] The utility model discloses the beneficial effects of:

[0020] The utility model provides a kind of fabricated mortise and tenon connection composite wall-plate node, wherein standard layer composite floor uses profiled steel plate to act as mortise and tenon with the reserved groove of composite wall to form composite structure, and the advantages of steel plate with high strength and high ductility are fully exerted.Top layer composite floor is overlapped on the rectangular steel pipe welded outside composite wall, and by the synergistic effect between materials, the seismic performance of structure can be effectively improved, and the damage of earthquake effect to structure is reduced.

[0021] Standardized production of composite wall and composite floor in factory can significantly improve construction quality, simple assembly is carried out at construction site using mortise and tenon joint, and by the mortise and tenon design of reserved groove and profiled steel plate, not only engineering cost and construction period are saved, but also wall and plate are closely combined, with very high structural strength, which can effectively transfer and disperse load, increase the stability and reliability of connection.

[0022] Bolt connection has the characteristics of simple construction, wide application range and good economy, and pre-tightening force is applied to bolt to make the connection between wall and plate more firm, so as to improve the seismic performance of structure as a whole; recycled concrete uses construction waste as aggregate, realizes the resource utilization of construction waste, and is helpful to the development of green cycle construction; micro-expansion cement is used to fill pore, so that it has the characteristics of simple installation, short construction period of dry work method and good connection integrity of wet work method. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional view of the standard layer prefabricated composite wall-plate node connection of the utility model.

[0024] Figure 2 It is the three-dimensional view of the standard layer prefabricated composite wall of the utility model.

[0025] Figure 3 It is the three-dimensional view of the standard layer prefabricated composite floor of the utility model.

[0026] Figure 4 It is the detail view of the standard layer connection part of the utility model.

[0027] Figure 5The utility model discloses a top layer prefabricated combined wall - panel node connection three -dimensional view.

[0028] Figure 6 The utility model discloses a top layer prefabricated combined wall three -dimensional view.

[0029] Figure 7 The utility model discloses a top layer prefabricated combined floor three -dimensional view.

[0030] Figure 8 The utility model discloses a top layer connecting part detail drawing.

[0031] Fig.

[0032] In the drawing: 1-combined wall 2-combined floor 3-pull bolt 4-L type angle steel 5-wall steel plate 6-regenerated concrete 7-reserve profiled steel plate shape recess 8-outer package concrete 9-profiled steel plate 10-reserve bolt hole 11-shear bolt 12-rectangular steel pipe. Specific implementation

[0033] The utility model will be further explained in detail in connection with the drawings.

[0034] As Figures 1 to 4 The utility model discloses a top layer prefabricated combined wall - panel node connection three -dimensional view.

[0035] The standard layer combined floor 2 is formed by profiled steel plate 9, reinforcing bar and concrete, replaces mortise and tenon on one side of the board and wall connection through profiled steel plate 9, and the recess size reserved in the wall is same with the profiled steel plate 9 size.

[0036] The standard layer combined wall 1 and combined floor 2 are connected through profiled steel plate 9 embedding in the recess reserved in the wall, and the bolt hole reserved on the angle steel is connected into a whole with combined wall 1, combined floor 2 and angle steel through high-strength pull bolt 3, and the bolt hole reserved on combined floor 2 and angle steel is about 1.5 times of the diameter of pull bolt 3, which satisfies the advantage of simple installation on site, and the gap in the bolt hole is filled with early-strength and micro-expansion cement mortar to play a reinforcing role, so that the connecting mode of the utility model has the characteristics of simple installation, short construction period and good connection integrity of dry work method and wet work method.

[0037] The top layer composite wall 1 is composed of two layers of steel plates 5 on the outside and recycled concrete 6 on the inside. A rectangular steel pipe 12 is welded on the outside of the top of the wall, and the width of the rectangular steel pipe 12 matches the cross-sectional size of the profiled steel plate 9. L-shaped angle steel 4 is embedded on both sides of the rectangular steel pipe 12, and is embedded in the wall inside to form an integral whole with the recycled concrete.

[0038] The top layer composite floor 2 is composed of internal profiled steel plate 9, steel bars and external wrapped concrete. The profiled steel plate 9 has bolt holes 10 reserved, and the composite floor 2 is connected to the rectangular steel pipe 12 welded on the outside of the composite wall 1 through the lap joint of the profiled steel plate 9, and is connected to the L-shaped angle steel 4 embedded in the composite wall 1 through the shear bolt 11 reserved in the profiled steel plate 9 to form an integral whole.

[0039] The top layer composite floor 2 has bolt holes reserved in its profiled steel plate 9 and at a distance of 1.5 times the distance from the wall plate connection 1. Since a rectangular steel pipe 12 is welded on the outside of the composite wall 1, in order to avoid insufficient anchoring force of the profiled steel plate 9 in the composite floor 2 and the rectangular steel pipe 12, bolt holes are reserved on both sides of the L-shaped angle steel 4. The angle steel reserved on the outside of the composite wall 1 is perpendicular to the wall, and the L-shaped angle steel 4, the internal profiled steel plate 9 of the composite floor 2 and the rectangular steel pipe 12 welded on the outside of the composite wall 1 are connected and fastened through the shear bolt 11 to form an integral structure.

[0040] The top layer composite wall 1 and the composite floor 2 are connected through the lap joint of the external welded steel pipe and the profiled steel plate 9, and are connected to form an integral whole through the L-shaped angle steel 4 embedded in the composite wall 1 by the shear bolt 11. Finally, the gap in the bolt hole is filled with early strength and micro-expansion cement mortar to play a reinforcing role, avoiding damage to the composite wall 1-plate joint connection part.

[0041] The composite wall 1 is composed of steel plates and recycled concrete 6, and the steel plate is a common steel with a yield strength of 350 MPa. The steel plate can act as a formwork for the wall, reducing the processes such as formwork erection and formwork removal, and speeding up the construction progress. The use of recycled concrete 6 in the wall improves the utilization rate of construction waste, and helps to promote green building and the implementation of sustainable development policy.

[0042] The L-shaped angle steel 4 in the prefabricated combined structure wall plate connection is made of ordinary steel with a yield strength of 350 MPa, and has the advantages of high strength, light weight, simple connection mode, convenient construction, low production cost, economy, and suitability for large-scale application; the L-shaped angle steel 4 is used to reinforce the mortise and tenon joint, the overall performance of the wall plate is improved, and the destruction of the joint is avoided to affect the use function of the structure. The high-strength bolt MU10, 10.9 is used, the bolt can be pre-tightened to make the combined wall 1, the plate and the L-shaped angle steel 4 tightly fit, and the micro-expansion cement is used to fill the gap between the bolt and the reserved hole, so that the reliability and strength of the joint are improved, and the joint has the advantages of dry construction method and wet construction method.

[0043] As shown in Figure 2 It is a three-dimensional view of a standard layer prefabricated combined wall, the combined wall 1 is composed of an outer steel plate 5 and an internal recycled concrete 6, and a profiled steel plate shaped groove 7 is arranged at the floor connecting position along the length direction of the wall, and L-shaped angle steels 4 are arranged at the top and bottom edges of the groove.

[0044] As shown in Figure 3 It is a three-dimensional view of a standard layer prefabricated combined floor, the combined floor 2 is composed of an outer concrete 8 and a profiled steel plate 9, and bolt holes 10 are reserved in the combined floor; the profiled steel plate 9 and the reserved profiled steel plate groove 7 are used to assemble and connect the combined wall 1 and the combined floor 2 at the construction site, so that the combined wall 1 and the combined floor 2 have the advantages of simple dry construction method and convenient construction.

[0045] As shown in Figure 4 It is a detailed view of a standard layer connecting part, which is composed of a tension bolt 3 and an L-shaped angle steel 4, one side of the L-shaped angle steel 4 is embedded in the combined wall body and forms a whole with the recycled concrete 6, and the other side is perpendicular to the wall body outside, and the L-shaped angle steel 4 outside the wall body is uniformly provided with bolt holes along the length direction.

[0046] Figures 5 to 8 As shown, the utility model top layer prefabricated combined wall 1, combined floor 2, shear bolt 11, L-shaped angle steel 4; the bolt holes are uniformly arranged on one side of the combined wall 1 and the combined floor 2, and the shear bolt 11 is used to connect the combined wall 1, the combined floor 2 and the L-shaped angle steel 4 into one.

[0047] As shown in Figure 6 It is a three-dimensional view of a top layer prefabricated combined wall, the combined wall 2 is composed of an outer steel plate 5 and an internal recycled concrete 6, and a rectangular steel pipe 12 is welded on the outer side of the combined wall, and L-shaped angle steels 4 are embedded on the upper and lower sides of the rectangular steel pipe.

[0048] As shown in Figure 7The three-dimensional view of the prefabricated composite floor slab of the top floor is shown. The composite floor slab 2 is composed of the outer concrete 8 and the profiled steel plate 9. The floor slab is lapped on the rectangular steel pipe 12 of the wall through the profiled steel plate 9. The size of the steel pipe corresponds to the size of the profiled steel plate, and the bolt holes are uniformly arranged on the profiled steel plate.

[0049] As shown in Figure 8 The detailed view of the connecting part of the top floor is shown. The connecting part is composed of the profiled steel plate 9, the L-shaped angle steel 4, the rectangular steel pipe 12 and the shear bolt 11. The profiled steel plate 9 is lapped on the rectangular steel pipe 12. The L-shaped angle steel 4 is embedded in the composite wall body and forms a whole with the recycled concrete 6. The L-shaped angle steel 4 is located outside the wall body and is perpendicular to the wall body. The L-shaped angle steel 4 has bolt holes uniformly reserved along the full length direction. Finally, the shear bolt 11 is used to connect the three parts into a whole.

[0050] A use method of the prefabricated mortise and tenon joint composite wall-plate node, comprising the following steps:

[0051] The composite wall 1 and the composite floor 2 of the standard floor are connected and spliced through the reserved profiled steel plate shape groove 7 and the profiled steel plate 9. The L-shaped angle steel 4 is reserved at the top and bottom edges of the reserved groove 7. The tension bolt 3 is used to tightly connect the composite wall 1, the composite floor 2 and the L-shaped angle steel 4, so as to form a whole structure. The gap in the reserved bolt hole is filled with micro-expanding cement.

[0052] The rectangular steel pipe 12 is welded outside the composite wall 1 of the top floor. The width of the rectangular steel pipe matches the cross-sectional size of the profiled steel plate 9. The L-shaped angle steel 4 is embedded along the upper and lower sides of the rectangular steel pipe. The bolt holes are reserved on both sides of the angle steel. One side is embedded in the wall body and forms a whole with the recycled concrete. The profiled steel plate 9 in the composite floor and the rectangular steel pipe 12 welded outside the composite wall are lapped to each other to form a whole. The shear bolt 11 is used to connect the composite wall 1, the composite floor 2 and the L-shaped angle steel 4. Finally, the micro-expanding cement is used to fill the pores in the bolt holes.

Claims

1. A fabricated mortise and tenon connection composite wall-plate joint, characterized by, The node is divided into a standard layer structure and a top layer structure, the standard layer structure includes a composite wall (1), a composite floor (2), a tension bolt (3) and two L-shaped angle steels (4); The composite wall (1) of the standard layer structure is vertically arranged, a composite floor (2) is vertically arranged on the side of the composite wall (1), and the composite floor (2) is connected with the composite wall (1) through the tension bolt (3) and the two L-shaped angle steels (4); The top layer structure includes a composite wall (1), a composite floor (2), a shear bolt (11) and an L-shaped angle steel (4). The composite wall (1) of the top layer structure is vertically arranged, a composite floor (2) is vertically arranged on the top of the side of the composite wall (1), and the composite floor (2) is connected through the shear bolt (11) and the L-shaped angle steel (4).

2. The panel joint of claim 1, wherein, The composite wall (1) includes a steel plate one (5-1) and a steel plate two (5-2) on the outside, and a recycled concrete wall (6) is arranged between the steel plate one (5-1) and the steel plate two (5-2).

3. The panel joint of claim 1, wherein, The composite wall (1) of the standard layer is provided with a recess (7) in the shape of a profiled steel plate at a connecting part with the composite floor (2), the recesses (7) are arranged at equal intervals in sequence, two L-shaped angle steels (4) are arranged above and below the recess (7), one side of the L-shaped angle steel (4) is embedded in the composite wall (1) to form an integral whole with the recycled concrete wall (6), and the other side is perpendicular to the wall body outside the composite wall (1) and is uniformly provided with bolt holes along the length direction.

4. The panel joint of claim 1, wherein, The composite floor (2) includes a concrete (8) and a profiled steel plate (9), the profiled steel plate (9) is arranged at the end of the concrete (8), the recess (7) in the shape of the profiled steel plate is provided with the same size as the profiled steel plate (9), and the profiled steel plate (9) is inserted into the recess (7) in the shape of the profiled steel plate on the construction site.

5. The panel joint of claim 4, wherein, The same size and number of reserved bolt holes as the L-shaped angle steel (4) are arranged at a position 20mm away from the end of the profiled steel plate (9).

6. The panel joint of claim 1, wherein, The composite wall (1), the composite floor (2) and the L-shaped angle steel (4) are tightly connected through the tension bolt (3) to form an integral structure, and the gap in the reserved bolt hole is filled with micro-expanding cement.

7. The panel point of a fabricated mortise and tenon connection composite wall- panel according to claim 1, characterized in that, The composite wall (1) of the top layer is welded with a rectangular steel pipe (12) outside, the width of the rectangular steel pipe (12) matches the cross-sectional size of the profiled steel plate (9), and the L-shaped angle steel (4) is embedded on the upper and lower sides of the rectangular steel pipe (12), the bolt holes are reserved on both sides of the L-shaped angle steel (4), one side is embedded in the wall body to form an integral whole with the recycled concrete wall (6), and the other side is perpendicular to the composite wall and is used for connecting with the composite floor (2).

8. The panel point of a fabricated mortise and tenon connection composite wall- panel according to claim 7, characterized in that, The composite wall-plate joint is formed into an integral whole by the profiled steel plate (9) in the composite floor (2) and the rectangular steel pipe (12) welded outside the composite wall (1), the top layer composite wall (1), the composite floor (2) and the L-shaped angle steel (4) are connected through the shear bolt (11), and finally the pores in the bolt holes are filled with micro-expanding cement.

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