Prefabricated composite panel joint structure

Abstract

This utility model relates to the field of building construction technology, specifically disclosing a precast composite slab joint structure, including a base plate. The upper end of the base plate is provided with a first U-shaped plate, a second U-shaped plate, a third U-shaped plate, and a fourth U-shaped plate. The two ends of the first, second, third, and fourth U-shaped plates are fixedly connected to the base plate by first fasteners. The first, second, third, and fourth U-shaped plates form a rectangular space at the upper end of the base plate. The four U-shaped plates at the upper end of the base plate each form a rectangular space for pouring. The base plate is fixed to each U-shaped plate by the first fasteners, and adjacent plates are fixed together by second fasteners. This double-fixed structure prevents displacement and loosening of the plates during pouring, ensuring a tight connection between the plates and maintaining the overall load-bearing capacity of the building after pouring.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a prefabricated composite plate joint structure. Background Art

[0002] The composite slab is an assembled integral floor slab made of prefabricated slabs and cast-in-place reinforced concrete layers. During the construction of the one-way truss reinforced concrete composite slab, there is a cast-in-place slab strip of about 10 cm between two adjacent composite slabs. The cast-in-place slab strip requires a formwork during construction. Traditional composite slab joint formwork has two forms: supporting formwork and hanging formwork.

[0003] When the prefabricated composite panels are continuously arranged by butt-jointing, since the common composite panels are mostly fixed to the upper end of the base plate by bolts, during the pouring process, the impact of concrete and sudden changes in temperature may cause the joints between the composite panels to loosen, thereby affecting the overall bearing capacity and safety of the building structure. Utility Model Content

[0004] In view of the above problems, the utility model proposes a prefabricated composite plate joint structure to solve the defect that the joint positions between the composite plates become loose during the casting process of the existing prefabricated composite plate joint structure.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a prefabricated composite plate joint structure, including a bottom plate, a first U-shaped plate, a second U-shaped plate, a third U-shaped plate and a fourth U-shaped plate are provided at the upper end of the bottom plate, and the two ends of the first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate are fixedly connected to the bottom plate by a first fastener;

[0006] The first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate form a rectangular space at the upper end of the bottom plate, the two ends of the first U-shaped plate and the second U-shaped plate are in contact with the side walls of the third U-shaped plate and the fourth U-shaped plate respectively, and the two ends of the first U-shaped plate and the third U-shaped plate are fixedly connected to the third U-shaped plate and the fourth U-shaped plate respectively through the second fastener;

[0007] A steel reinforcement piece is arranged in the rectangular space, and the steel reinforcement piece is detachably connected to the first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate.

[0008] A further improvement is that the steel reinforcement comprises a plurality of first ribs arranged side by side and a plurality of second ribs arranged side by side, each first rib is vertically staggered with each second rib, two ends of the first rib are respectively inserted into the third U-shaped plate and the fourth U-shaped plate, and two ends of the second rib are respectively inserted into the first U-shaped plate and the second U-shaped plate.

[0009] A further improvement is that the diameter of the second rib is greater than that of the first rib, a rib through hole is provided at the intersection of the second rib and the first rib to allow the first rib to pass through, and the rib through hole is threadedly connected to the first rib.

[0010] A further improvement is that: a plurality of first through holes are provided on both sides of the first U-shaped plate to allow the second ribs to pass through, and a plurality of second through holes are provided on both sides of the first U-shaped plate to allow the first ribs to pass through.

[0011] A further improvement is that a positioning hole is provided on the side of the second U-shaped plate facing the first U-shaped plate, and a side assembly hole is provided on the side of the fourth U-shaped plate facing the third U-shaped plate.

[0012] A further improvement is that the first fastener includes first fixing bolts arranged in the first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate, each first fixing bolt is respectively fixed to the first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate, each first fixing bolt passes through the first U-shaped plate, the second U-shaped plate, the third U-shaped plate and the fourth U-shaped plate and is threadedly connected to each bolt hole opened on the upper end of the bottom plate.

[0013] A further improvement is that the second fastener includes a pressure block fixedly connected to both ends of the first U-shaped plate and the second U-shaped plate, the lower end surface of the pressure block is in contact with the upper end surfaces of the third U-shaped plate and the fourth U-shaped plate, and a second fixing bolt is assembled on the pressure block. The second fixing bolt passes through the pressure block and is threadedly connected to the bolt hole opened on the upper ends of the third U-shaped plate and the fourth U-shaped plate, and a gasket is provided at the connection between the second fixing bolt and the pressure block.

[0014] The beneficial effects of the utility model are as follows: four U-shaped plates are provided at the upper end of the base plate, each U-shaped plate encloses a rectangular space for pouring, the base plate is fixed to each U-shaped plate by a first fastener, and two adjacent plates are fixed by a second fastener, and the double-fixed structure prevents each plate from shifting or loosening during the pouring process, and each plate maintains a tightly docked state, which will not affect the overall bearing capacity of the building after pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the first U-shaped plate in the utility model.

[0016] Figure 2 It is a structural diagram of the first rib in the utility model.

[0017] Figure 3 It is a structural diagram of the second rib in the utility model.

[0018] Figure 4 It is a structural diagram of the bottom plate of the utility model.

[0019] Figure 5 This utility model Figure 1 A magnified view of the structure at center.

[0020] Among them: 1. bottom plate; 2. first perforation; 3. first U-shaped plate; 4. second U-shaped plate; 5. third U-shaped plate; 6. fourth U-shaped plate; 7. second perforation; 8. first rib; 9. second rib; 10. rib perforation; 11. first fixing bolt; 12. second fixing bolt; 13. pressing block; 14. gasket. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0022] according to Figure 1 , 2 As shown in FIG. 3 , a prefabricated composite plate joint structure is proposed in this embodiment, including a bottom plate 1, a first U-shaped plate 3, a second U-shaped plate 4, a third U-shaped plate 5 and a fourth U-shaped plate 6 are provided on the upper end of the bottom plate 1, and both ends of the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 are fixedly connected to the bottom plate 1 by a first fastener;

[0023] The first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 form a rectangular space at the upper end of the base plate 1, and the two ends of the first U-shaped plate 3 and the second U-shaped plate 4 are in contact with the side walls of the third U-shaped plate 5 and the fourth U-shaped plate 6 respectively, and the two ends of the first U-shaped plate 3 and the third U-shaped plate 5 are fixedly connected to the third U-shaped plate 5 and the fourth U-shaped plate 6 respectively through the second fastener; the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 are assembled on the upper end of the base plate 1 and form a rectangular space for pouring concrete, the base plate 1 is fixed with the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 through the first fastener, and the two adjacent plates are fixed by the second fastener. The double-fixed structure prevents the displacement and loosening of each U-shaped plate during the pouring process, and each plate is always in a tightly docked state, which will not have an adverse effect on the overall bearing capacity of the building after pouring.

[0024] Steel reinforcement members are arranged in the rectangular space, and the steel reinforcement members are detachably connected to the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6.

[0025] Specifically, the steel reinforcement member includes a plurality of first ribs 8 arranged side by side and a plurality of second ribs 9 arranged side by side, each first rib 8 is vertically staggered with each second rib 9, both ends of the first rib 8 are respectively inserted into the third U-shaped plate 5 and the fourth U-shaped plate 6, and both ends of the second rib 9 are respectively inserted into the first U-shaped plate 3 and the second U-shaped plate 4. When pouring concrete, the first ribs 8 and the second ribs 9 will form the skeleton of the prefabricated composite plate, and the staggered first ribs 8 and the second ribs 9 can make the composite plate have good working strength.

[0026] More specifically, the diameter of the second rib 9 is greater than the diameter of the first rib 8, and a rib through-hole 10 is provided at the intersection of the second rib 9 and the first rib 8 to allow the first rib 8 to pass through, and the rib through-hole 10 is threadedly connected to the first rib 8. The first rib 8 is inserted into each second rib 9 by screwing during assembly, and when the first rib 8 and the second rib 9 are fully assembled, the threaded surface on the outside of the first rib 8 will cooperate with the nut surface on the inside of the rib through-hole 10. The advantage of such a setting is that each first rib 8 and each second rib 9 are fixed to each other, and the nodes where the first rib 8 and the second rib 9 are fixed are locked by threaded connection, which does not affect the assembly of the first rib 8 and the second rib 9, and also prevents each first rib 8 and each second rib 9 from shifting during casting.

[0027] See also Figure 1 , a plurality of first through holes 2 are provided on both sides of the first U-shaped plate 3 to allow the second ribs 9 to pass through, and a plurality of second through holes 7 are provided on both sides of the first U-shaped plate 3 to allow the first ribs 8 to pass through. Each first rib 8 passes through each second through hole 7 on the outside of the third U-shaped plate 5 and enters the rectangular space surrounded by the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6. Each second rib 9 passes through each first through hole 2 on the outside of the first U-shaped plate 3 and enters the rectangular space surrounded by the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6, and is vertically staggered with each first rib 8.

[0028] See also Figure 2After the first rib 8 and the second rib 9 are inserted into the first U-shaped plate 3 and the second U-shaped plate 4, the other ends of the first rib 8 and the second rib 9 need to be supported and limited by the second U-shaped plate 4 and the fourth U-shaped plate 6. The second U-shaped plate 4 is provided with a positioning hole on the side facing the first U-shaped plate 3, and the fourth U-shaped plate 6 is provided with a side assembly hole on the side facing the third U-shaped plate 5. After the first rib 8 passes through the third U-shaped plate 5, it can pass through the fourth U-shaped plate 6 through the assembly hole on the outside of the fourth U-shaped plate 6. The fourth U-shaped plate 6 supports the first rib 8 while limiting the first rib 8. After the second rib 9 passes through the first perforation 2, it can pass through the second U-shaped plate 4 through the positioning hole on the outside of the second U-shaped plate 4. The third U-shaped plate 5 supports and limits the second rib 9.

[0029] See also Figure 4 The first fastener includes a first fixing bolt 11 disposed in the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6. Each first fixing bolt 11 is fixed to the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 respectively. Each first fixing bolt 11 passes through the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 respectively and is threadedly connected with each bolt hole opened at the upper end of the bottom plate 1. The first fastener is used to fix the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 to the upper end of the bottom plate 1. When the first fixing bolt 11 completes the fixing of the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6, the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 will enclose a rectangular space at the upper end of the bottom plate 1.

[0030] See also Figure 5 The second fastener includes a pressing block 13 fixedly connected to both ends of the first U-shaped plate 3 and the second U-shaped plate 4, the lower end surface of the pressing block 13 contacts the upper end surface of the third U-shaped plate 5 and the fourth U-shaped plate 6, and the pressing block 13 is equipped with a second fixing bolt 12, which passes through the pressing block 13 and is threadedly connected to the bolt hole opened at the upper end of the third U-shaped plate 5 and the fourth U-shaped plate 6, and a gasket 14 is provided at the connection between the second fixing bolt 12 and the pressing block 13. The gasket 14 plays a role in sharing the force between the second fixing bolt 12 and the pressing block 13. In addition to the gasket 14 provided between the second fixing bolt 12 and the pressing block 13, the gasket 14 is also provided at the connection between each first fixing bolt 11 and the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6.

[0031] The second fastener is used to fix the first U-shaped plate 3 and the second U-shaped plate 4 together with the third U-shaped plate 5 and the fourth U-shaped plate 6. When assembling the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6, first fix the third U-shaped plate 5 and the fourth U-shaped plate 6, and then fix the first U-shaped plate 3 and the second U-shaped plate 4, so that the pressing blocks 13 at both ends of the first U-shaped plate 3 and the third U-shaped plate 5 can be pressed on the upper end surfaces of the third U-shaped plate 5 and the fourth U-shaped plate 6, and the second fixing bolt 12 is screwed into the bolt hole, so that the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 are fixedly connected to form a whole.

[0032] The difference from the existing prefabricated composite panel joint structure is that the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 are assembled on the upper end of the base plate 1 and enclose a rectangular space for pouring. The base plate 1 is fixed to the first U-shaped plate 3, the second U-shaped plate 4, the third U-shaped plate 5 and the fourth U-shaped plate 6 by a first fastener, and two adjacent plates are fixed by a second fastener. The double-fixed structure prevents each part from shifting or loosening during the pouring process, and each plate keeps a tight docking state, which will not affect the overall bearing capacity of the building after pouring.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A prefabricated composite panel joint structure, comprising a bottom plate (1), characterized in that: A first U-shaped plate (3), a second U-shaped plate (4), a third U-shaped plate (5) and a fourth U-shaped plate (6) are provided at the upper end of the bottom plate (1); both ends of the first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6) are fixedly connected to the bottom plate (1) via a first fastener; The first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6) enclose a rectangular space at the upper end of the bottom plate (1); the two ends of the first U-shaped plate (3) and the second U-shaped plate (4) are in contact with the side walls of the third U-shaped plate (5) and the fourth U-shaped plate (6), respectively; and the two ends of the first U-shaped plate (3) and the third U-shaped plate (5) are fixedly connected to the third U-shaped plate (5) and the fourth U-shaped plate (6) respectively via second fasteners; A steel reinforcement piece is arranged in the rectangular space, and the steel reinforcement piece is detachably connected to the first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6).

2. The prefabricated composite panel joint structure according to claim 1, characterized in that: The steel reinforcement member comprises a plurality of first ribs (8) arranged side by side and a plurality of second ribs (9) arranged side by side, each of the first ribs (8) and each of the second ribs (9) being vertically staggered, two ends of the first ribs (8) respectively penetrating into the third U-shaped plate (5) and the fourth U-shaped plate (6), and two ends of the second ribs (9) respectively penetrating into the first U-shaped plate (3) and the second U-shaped plate (4).

3. The prefabricated composite panel joint structure according to claim 2, characterized in that: The diameter of the second rib (9) is greater than the diameter of the first rib (8); a rib through hole (10) is provided at the intersection of the second rib (9) and the first rib (8) to allow the first rib (8) to pass through; the rib through hole (10) is threadedly connected to the first rib (8).

4. The prefabricated composite panel joint structure according to claim 2, characterized in that: A plurality of first through holes (2) are provided on both sides of the first U-shaped plate (3) to allow the second ribs (9) to pass through, and a plurality of second through holes (7) are provided on both sides of the first U-shaped plate (3) to allow the first ribs (8) to pass through.

5. The prefabricated composite panel joint structure according to claim 2, characterized in that: The second U-shaped plate (4) is provided with a positioning hole on a side facing the first U-shaped plate (3), and the fourth U-shaped plate (6) is provided with a side assembly hole on a side facing the third U-shaped plate (5).

6. The prefabricated composite panel joint structure according to claim 1, characterized in that: The first fastener comprises a first fixing bolt (11) provided in the first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6), each of the first fixing bolts (11) being fixed to the first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6), respectively; each of the first fixing bolts (11) respectively passes through the first U-shaped plate (3), the second U-shaped plate (4), the third U-shaped plate (5) and the fourth U-shaped plate (6) and is threadedly connected to each bolt hole provided at the upper end of the bottom plate (1).

7. The prefabricated composite panel joint structure according to claim 1, characterized in that: The second fastener comprises a pressing block (13) fixedly connected to both ends of the first U-shaped plate (3) and the second U-shaped plate (4); the lower end surface of the pressing block (13) contacts the upper end surfaces of the third U-shaped plate (5) and the fourth U-shaped plate (6); a second fixing bolt (12) is mounted on the pressing block (13); the second fixing bolt (12) passes through the pressing block (13) and is threadedly connected to bolt holes provided at the upper ends of the third U-shaped plate (5) and the fourth U-shaped plate (6); a gasket (14) is provided at the connection between the second fixing bolt (12) and the pressing block (13).

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