Cast-in-situ coping structure of AAC (advanced artificial building) spliced large plate

Abstract

The utility model relates to the technical field of building construction, in particular to an AAC spliced large plate cast-in-place coping structure which comprises AAC plates, reinforcing flat steel, U-shaped steel bars and coping steel bars, the number of the AAC plates is two, the number of the reinforcing flat steel is the same as that of the AAC plates, the reinforcing flat steel and the AAC plates are in one-to-one correspondence, and the two reinforcing flat steel are connected to the surfaces of the sides, facing the other AAC plate, of the AAC plates correspondingly; the U-shaped steel bars are connected to the surfaces of the sides, away from the AAC plate, of the reinforcing flat steel bars, and the two ends, in the axial direction of the coping steel bars, of the coping steel bars are in lap joint with the ends of the two U-shaped steel bars correspondingly. The reinforcing flat steel is connected with the AAC plate, then the U-shaped steel bars are machined to be connected with the reinforcing flat steel, and the two ends of the coping steel bars are in lap joint with the U-shaped steel bars correspondingly, so that relative fixing of the coping steel bars and the AAC plate is achieved, the stability of connection between the coping structure formed through follow-up pouring and the AAC plate is improved, and the service life of a building is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, in particular to an AAC assembled large plate cast-in-place top pressing structure. BACKGROUND

[0002] The application of the assembly monolithic building system not only shortens the construction period, reduces the consumption of materials and equipment on site, reduces the dust and noise hazards caused by traditional building construction to the society, saves labor, and fully improves the building use area and other benefits.

[0003] At present, the construction of the top pressing structure mainly adopts two ways, one is to provide grooves at both ends of the top pressing structure, so that the both ends of the top pressing structure are embedded in the grooves to support the top pressing structure, which needs to reserve corresponding grooves when producing the prefabricated wall plate, and the application range is small, or corresponding grooves are formed on the complete prefabricated wall plate, which is easy to damage the structural strength of the prefabricated wall plate; the other is to fixedly connect the end of the steel bar with the prefabricated wall plate, and the contact area of the connection between the steel bar and the wall plate is small, so that the stability of the connection between the top pressing structure and the prefabricated wall plate is insufficient. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the stability of the connection between the top pressing structure and the prefabricated wall plate, the application provides an AAC assembled large plate cast-in-place top pressing structure.

[0005] The AAC assembled large plate cast-in-place top pressing structure provided by the application adopts the following technical scheme:

[0006] An AAC assembled large plate cast-in-place top pressing structure, comprising an AAC plate, a reinforcing flat steel, a U-shaped steel bar and a top pressing steel bar; the AAC plate is provided with two; the number of the reinforcing flat steels is the same as the number of the AAC plates and one-to-one correspondence; the two reinforcing flat steels are respectively connected to one side surface of the AAC plate facing the other AAC plate; the U-shaped steel bar is connected to one side surface of the reinforcing flat steel away from the AAC plate; and the both ends of the top pressing steel bar are respectively overlapped with the end portions of the two U-shaped steel bars along the axis direction of the top pressing steel bar.

[0007] By adopting the above technical scheme, the reinforcing flat steel and the AAC plate are connected, the U-shaped steel bar is processed to be connected with the reinforcing flat steel, and the both ends of the top pressing steel bar are respectively overlapped with the U-shaped steel bar, so that the relative fixation of the top pressing steel bar and the AAC plate is realized, the stability of the connection between the top pressing structure formed by subsequent pouring and the AAC plate is improved, and the service life of the building is improved.

[0008] Preferably, the U-shaped steel bar and the reinforcing flat steel are double-face welded.

[0009] By adopting the above technical scheme, the double-sided welding is adopted, the stability of the connection between the higher U-shaped steel bars and the reinforcing flat steel is improved, and then the stability of the connection between the pressure top structure and the ACC plate is improved.

[0010] Preferably, the hoop reinforcement is further included; the hoop reinforcement is arranged around the outer periphery of the pressure top hoop reinforcement and the U-shaped steel bar; the hoop reinforcement is provided in plurality; the plurality of hoop reinforcements are evenly distributed along the axis direction of the pressure top steel bar.

[0011] By adopting the above technical scheme, the hoop reinforcement plays a role in fixing the pressure top steel bar and the U-shaped steel bar, reduces the possibility of deformation or displacement of the steel bar during pouring, improves the stability of the combination of each pressure top steel bar and U-shaped steel bar, improves the overall structural strength of the pressure top steel bar in the pressure top structure, and improves the structural strength of the pressure top structure.

[0012] Preferably, the number of hoop reinforcements at the overlapping position of the U-shaped steel bar and the pressure top steel bar is not less than three.

[0013] By adopting the above technical scheme, the overlapping position of the U-shaped steel bar and the pressure top steel bar is provided with multiple hoop reinforcements, and the connection strength of the connection position of the U-shaped steel bar and the pressure top steel bar is improved.

[0014] Preferably, the support jacks are further included; the support jacks are provided in plurality; the plurality of support jacks are divided into two groups; the two groups of support jacks are respectively connected to the sides of the two reinforcing flat steels away from the AAC plate; and the upper end of the support jack is used to support the lower end of the poured pressure top structure.

[0015] By adopting the above technical scheme, the support jacks are arranged to support the lower end of the pressure top structure, which can effectively disperse the gravity borne by the pressure top structure and improve the service life of the pressure top structure.

[0016] Preferably, the side of the support jack close to the reinforcing flat steel is provided with a sliding groove; the reinforcing flat steel is slidably embedded in the sliding groove; and the sliding direction of the reinforcing flat steel is vertical.

[0017] By adopting the above technical scheme, the support jack is provided with the sliding groove, the sliding groove is used for the reinforcing flat steel to be slidably embedded, and the sliding of the support jack is guided, which is helpful to realize the positioning of the support jack.

[0018] Preferably, the support seats are further included; the number of support seats is the same as and one-to-one corresponds to the number of support jacks; the support seat is connected to the upper end of the support jack; the support seat is provided with a plurality of mounting holes; and the mounting holes are used for the end portions of the U-shaped steel bar and the pressure top steel bar to be embedded.

[0019] By adopting the above technical scheme, the U-shaped steel bar and the pressure top steel bar are supported, which is convenient for the welding between the U-shaped steel bar and the reinforcing flat plate and the overlapping between the pressure top steel bar and the U-shaped steel bar, and improves the work efficiency.

[0020] Preferably, the pouring formwork further comprises a lower formwork and side formworks, the support jacks are provided with guide grooves away from one side of the reinforcing flat steel, the guide grooves extend along a direction perpendicular to an axis of the compression top reinforcement, the guide grooves are horizontally long, two ends of the lower formwork along a length direction of the lower formwork are respectively slidably embedded in the guide grooves, the two side formworks are respectively connected to two sides of the lower formwork along the length direction of the guide grooves, and upper surfaces of the two support jacks, a side surface of the two side formworks facing the other side formwork, and an upper surface of the lower formwork form a pouring space of the compression top structure.

[0021] By adopting the technical scheme, the guide grooves are provided for embedding the lower formwork, and the installation of the lower formwork is guided, which helps to realize the installation of the lower formwork and the side formworks and pouring of the compression top structure.

[0022] Preferably, the pouring formwork further comprises a limiting piece, one end of the guide groove along a length direction of the guide groove is provided with a baffle, the baffle is used for abutting one end of the lower formwork, one end of the limiting piece is rotatably connected to a groove wall of the guide groove away from the baffle, and the other end of the limiting piece is used for abutting an end of the lower formwork away from the baffle.

[0023] By adopting the technical scheme, the baffle and the limiting piece fix the lower formwork, and the movement of the lower formwork in the process of installing the side formwork and pouring the concrete is reduced, and the pouring efficiency of the compression top structure is affected.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The reinforcing flat steel and the AAC plate are connected, the U-shaped steel is processed by connecting the reinforcing flat steel, the two ends of the compression top reinforcement are respectively overlapped with the U-shaped steel, the relative fixation of the compression top reinforcement and the AAC plate is realized, the stability of the connection between the compression top structure and the AAC plate formed by subsequent pouring is improved, and the service life of the building is improved.

[0026] 2. The higher the stability of the connection between the U-shaped steel and the reinforcing flat steel is, the higher the stability of the connection between the compression top structure and the ACC plate is.

[0027] 3. The stirrup fixes the compression top reinforcement and the U-shaped steel, reduces the possibility of deformation or displacement of the steel in the pouring process, improves the stability of the combination of the compression top reinforcement and the U-shaped steel, improves the structural strength of the compression top reinforcement as a whole in the compression top structure, and improves the structural strength of the compression top structure. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of an AAC assembled large plate cast-in-situ compression top structure, and does not contain a pouring formwork.

[0029] Figure 2 isFigure 1 Enlarged view at A.

[0030] Figure 3 is a partial sectional view of the AAC assembled large plate cast-in-place capping structure.

[0031] Figure 4 is a partial sectional view of the AAC assembled large plate cast-in-place capping structure.

[0032] Figure 5 is a structural schematic view of the AAC assembled large plate cast-in-place capping structure

[0033] BRIEF DESCRIPTION OF DRAWINGS

[0034] 1, AAC plate; 2, reinforcing flat steel; 21, limiting strip; 3, U-shaped steel bar; 4, capping steel bar; 5, stirrup; 6, support support; 61, sliding section; 611, sliding groove; 612, limiting groove; 613, fixing hole; 62, support section; 621, guide groove; 622, baffle; 623, fixing groove; 624, embedding groove; 63, reinforcing rib; 7, support seat; 71, mounting hole; 72, embedded block; 8, pouring formwork; 81, lower formwork; 811, guide strip; 82, side formwork; 821, connecting hole; 9, limiting piece; 91, chamfer; 10, reset piece. DETAILED DESCRIPTION

[0035] The application will be further described in detail below with reference to the accompanying drawings.

[0036] With reference to Figure 1 The AAC assembled large plate cast-in-place capping structure disclosed in the embodiments of the application comprises AAC plates 1 and reinforcing flat steels 2. Two AAC plates 1 are provided, and the length direction of the AAC plates 1 is vertical, and the two AAC plates 1 are symmetrically distributed along the X direction. The number of the reinforcing flat steels 2 is the same as that of the AAC plates 1 and corresponds to the AAC plates 1 one by one. The reinforcing flat steels 2 are fixedly connected to the side surface of the AAC plates 1 close to the other AAC plate 1, and the length direction of the reinforcing flat steels 2 is vertical.

[0037] With reference to Figure 1 and Figure 2The AAC assembled large plate cast-in-place capping structure further comprises a supporting top support 6. The number of the supporting top support 6 is the same as that of the reinforcing flat steel 2 and corresponds one by one. The supporting top support 6 comprises a sliding section 61 and a supporting section 62. The sliding section 61 is provided with a sliding groove 611, and the reinforcing flat steel 2 is slidably embedded in the sliding groove 611. The sliding direction of the reinforcing flat steel 2 is parallel to the length direction of the reinforcing flat steel 2. The end of the reinforcing flat steel 2 away from the AAC plate 1 is fixedly connected with a limiting strip 21 on the surface of each side in the Y direction. The length direction of the limiting strip 21 is parallel to the length direction of the reinforcing flat steel 2. The sliding groove 611 is provided with a limiting groove 612, and the limiting strip 21 is slidably embedded in the limiting groove 612. The sliding direction of the limiting strip 21 is parallel to the length direction of the limiting strip 21, and the side wall of the limiting strip 21 is in close contact with the groove wall of the limiting groove 612. The supporting section 62 is fixedly connected to the upper end of the sliding section 61. The length direction of the supporting section 62 is parallel to the X direction, and the end of the supporting section 62 close to the AAC plate 1 is in close contact with the surface of the AAC plate 1 facing the other AAC plate 1.

[0038] The supporting top support 6 further comprises a reinforcing rib 63. The reinforcing rib 63 extends from the lower surface of the supporting section 62 to the side surface of the sliding section 61 away from the AAC plate 1. A plurality of reinforcing ribs 63 are distributed in the Y direction at intervals. The Y direction is perpendicular to the X direction. In this embodiment, three reinforcing ribs 63 are provided, which are uniformly distributed in the Y direction. The sliding section 61 is provided with a plurality of fixing holes 613. The plurality of fixing holes 613 are used for the bolts to pass through and abut against the side surface of the reinforcing flat steel 2 away from the AAC plate 1. In this embodiment, two fixing holes 613 are provided.

[0039] Referring to Figure 1 and Figure 2 The AAC assembled large plate cast-in-place capping structure further comprises a U-shaped steel bar 3, a capping steel bar 4 and a stirrup 5. One side of the U-shaped steel bar 3 is fixedly connected to the side surface of the reinforcing flat steel 2 away from the AAC plate 1. In this embodiment, the U-shaped steel bar 3 and the reinforcing flat steel 2 are connected by double-sided welding. A plurality of U-shaped steel bars 3 are provided. The plurality of U-shaped steel bars 3 are divided into two groups. The two groups of U-shaped steel bars 3 correspond to the two reinforcing flat steels 2 respectively. In this embodiment, one group of U-shaped steel bars 3 is provided with two U-shaped steel bars 3. The two U-shaped steel bars 3 in the same group are distributed in the vertical direction at intervals. The axis of the capping steel bar 4 is parallel to the X direction. The two ends of the capping steel bar 4 in the axial direction are respectively overlapped with the end portions of the U-shaped steel bar 3. In this embodiment, six capping steel bars 4 are provided. The six capping steel bars 4 are distributed at intervals on the outer periphery of the U-shaped steel bar 3. The stirrup 5 is wound on the outer periphery of the capping steel bar 4 and the U-shaped steel bar 3. A plurality of stirrups 5 are provided. The plurality of stirrups 5 are uniformly distributed in the axial direction of the capping steel bar 4. In this embodiment, twelve stirrups 5 are provided. The number of the stirrups 5 at the overlapping position of the U-shaped steel bar 3 and the capping steel bar 4 is three.

[0040] The AAC assembled large plate cast-in-situ capping structure further comprises a support base 7. The support base 7 is slidingly connected to the upper end of the support section 62, and the sliding direction of the support base 7 is parallel to the X direction. The upper surface of the support section 62 is provided with an embedding groove 624, the embedding groove 624 extends along the sliding direction of the support base 7, and the embedding groove 624 penetrates the support section 62 at the end close to the AAC plate 1. The lower end of the support base 7 is fixedly connected with an embedding block 72, the embedding block 72 is slidingly embedded in the embedding groove 624, and the sliding direction of the embedding block 72 is parallel to the sliding direction of the support base 7. In this embodiment, the embedding block 72 is a dovetail block. The embedding block 72 is provided with a plurality of mounting holes 71, the number of the mounting holes 71 is the same as and corresponds to the number of the capping steel bars 4, and the mounting holes 71 are used for embedding the end portions of the capping steel bars 4 and the U-shaped steel bars 3.

[0041] The AAC assembled large plate cast-in-situ capping structure further comprises a pouring formwork 8, a limiting piece 9 and a resetting piece 10. The pouring formwork 8 comprises a lower formwork 81. The side surface of the support section 62 away from the AAC plate 1 is provided with a guide groove 621, the guide groove 621 extends along the Y direction, and the guide groove 621 penetrates the support section 62 at both ends along the length direction of the guide groove 621. The groove bottom of the guide groove 621 is fixedly connected with a baffle 622, and the baffle 622 is located at one side of the length direction of the guide groove 621. The lower formwork 81 is fixedly connected with a guide strip 811 at both ends along the axis direction of the capping steel bars 4, the guide strip 811 is slidingly embedded in the guide groove 621, and the sliding direction of the guide strip 811 is parallel to the length direction of the guide groove 621. The surface of the lower formwork 81 on both sides along the length direction of the guide groove 621 is flush with the surface of the support section 62 on both sides along the length direction of the guide groove 621, the upper surface of the lower formwork 81 is flush with the upper surface of the support section 62, and the end of the guide strip 811 close to the baffle 622 abuts against the baffle 622. The groove bottom of the guide groove 621 is provided with a fixing groove 623, the fixing groove 623 extends along the length direction parallel to the support section 62, the fixing groove 623 is located at the side of the guide strip 811 away from the baffle 622, the limiting piece 9 is slidingly embedded in the fixing groove 623, the length direction of the limiting piece 9 is parallel to the length direction of the fixing groove 623, the end of the limiting piece 9 away from the groove bottom of the fixing groove 623 extends into the guide groove 621, and the end of the limiting piece 9 extending into the guide groove 621 is close to the side surface of the baffle 622 on one side for abutting against the end of the guide strip 811 away from the baffle 622. The end of the limiting piece 9 away from the groove bottom of the fixing groove 623 is provided with a chamfer 91, the chamfer 91 is located at the side of the limiting piece 9 away from the baffle 622, and the chamfer 91 is used for abutting against the end of the guide groove 621 close to the baffle 622. The resetting piece 10 is connected between the limiting piece 9 and the support section 62, and the resetting piece 10 makes the end of the limiting piece 9 away from the groove bottom of the fixing groove 623 have the tendency of the guide groove 621. In this embodiment, the resetting piece 10 adopts a spring, one end of the resetting piece 10 is connected with the groove bottom of the fixing groove 623, and the other end of the resetting piece 10 is connected with the end of the limiting piece 9 close to the groove bottom of the guide groove 621.

[0042] The pouring formwork 8 further comprises side formworks 82. The side formworks 82 are provided in two, and the two side formworks 82 are symmetrically distributed along the length direction of the guide groove 621, and the side surface of each side formwork 82 close to the other side formwork 82 is fitted with the surface of the lower formwork 81 on both sides along the length direction of the guide groove 621. The side surface of each side formwork 82 close to the other side formwork 82 forms a pouring space with the upper surface of the lower formwork 81 and the upper surface of the two support segments 62. There is a gap between the side surface of each side formwork 82 close to the other side formwork 82 and the surface of the support base 7 on both sides along the Y direction. The side formwork 82 is provided with a plurality of connecting holes 821, and the connecting holes 821 are used for the bolt to pass through and be screwed with the lower formwork 81 and the support segment 62.

[0043] The implementation principle of the AAC assembled large plate cast-in-situ pressing top structure in the embodiment of the application is as follows: the two reinforcing flat steels 2 are fixedly connected to the AAC plate 1, the support top support 6 is slid to a specified area, the bolt is screwed into the fixing hole 613, the end of the bolt abuts against the reinforcing flat steel 2, the relative fixation of the support top support 6 and the reinforcing flat steel 2 is realized, the end of the U-shaped steel bar 3 is inserted through the mounting hole 71 of the support base 7, the welding of the U-shaped steel bar 3 and the reinforcing flat steel 2 is facilitated, the pressing top steel bar 4 is inserted through the mounting hole 71, and the stirrup 5 is wound outside the U-shaped steel bar 3 and the pressing top steel bar 4.

[0044] The guide strip 811 is slid into the guide groove 621, the guide strip 811 abuts against the chamfer 91, the limiting piece 9 is embedded into the fixing groove 623 against the elastic force of the reset piece 10, when the guide strip 811 slides and abuts against the baffle 622, the limiting piece 9 is stretched out of the fixing groove 623 under the action of the elastic force of the reset piece 10, the limiting piece 9 abuts against the end of the guide strip 811 away from the baffle 622, the relative fixation of the lower formwork 81 and the support top support 6 is realized, the side formwork 82 is connected with the lower formwork 81 and the support segment 62, and then the pouring space formed by the side formwork 82, the lower formwork 81 and the support segment 62 is poured with concrete. After the concrete is completely solidified, the side formwork 82 and the lower formwork 81 are removed.

[0045] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A cast-in-place coping structure for AAC (Assembled Acrylic Aluminum Concrete Composite) panels, characterized in that: AAC plate (1), reinforcing flat steel (2), U-shaped steel bar (3) and top pressing steel bar (4) are included; the AAC plate (1) is provided with two; the number of the reinforcing flat steel (2) is the same as that of the AAC plate (1) and one-to-one correspondence; two reinforcing flat steels (2) are respectively connected to one side surface of the AAC plate (1) facing the other AAC plate (1); the U-shaped steel bar (3) is connected to one side surface of the reinforcing flat steel (2) away from the AAC plate (1); the top pressing steel bar (4) is respectively overlapped with the end of the two U-shaped steel bars (3) along the axis direction of the top pressing steel bar (4).

2. The AAC assembled large panel cast-in-situ capping structure according to claim 1, characterized in that: The U-shaped steel bar (3) and the reinforcing flat steel (2) are double-sided welded.

3. The AAC assembled large panel cast-in-situ capping structure according to claim 1, characterized in that: It also includes stirrups (5); the stirrups (5) are provided around the outer periphery of the top pressing stirrup (5) and the U-shaped steel bar (3); the stirrups (5) are provided with several; the several stirrups (5) are evenly distributed along the axis direction of the top pressing steel bar (4).

4. The AAC assembled large panel cast-in-situ capping structure according to claim 3, characterized in that: The number of the stirrups (5) at the overlapping place of the U-shaped steel bar (3) and the top pressing steel bar (4) is not less than three.

5. The AAC assembled large panel cast-in-situ topping structure according to claim 1, characterized in that: It also includes support jacks (6); the support jacks (6) are provided with several; the several support jacks (6) are divided into two groups; the two groups of support jacks (6) are respectively connected to one side of the two reinforcing flat steels (2) away from the AAC plate (1); the upper end of the support jack (6) is used to support the lower end of the top pressing structure after pouring.

6. The AAC assembled large panel cast-in-situ capping structure according to claim 5, characterized in that: The side of the support jack (6) close to the reinforcing flat steel (2) is provided with a sliding groove (611); the reinforcing flat steel (2) is slidingly embedded in the sliding groove (611); the sliding direction of the reinforcing flat steel (2) is vertical.

7. The AAC assembled large panel cast-in-situ capping structure according to claim 5, characterized in that: It also includes support seats (7); the number of the support seats (7) is the same as that of the support jacks (6) and one-to-one correspondence; the support seat (7) is connected to the upper end of the support jack (6); the support seat (7) is provided with several mounting holes (71); the mounting holes (71) are used for embedding the end of the U-shaped steel bar (3) and the top pressing steel bar (4).

8. The AAC assembled large panel cast-in-situ capping structure according to claim 5, characterized in that: It also includes pouring formworks (8); the pouring formworks (8) are provided with a lower formwork (81) and a side formwork (82); the side of the support jack (6) away from the reinforcing flat steel (2) is provided with a guide groove (621); the guide groove (621) extends along the direction perpendicular to the axis direction of the top pressing steel bar (4); the length direction of the guide groove (621) is horizontal; the two ends of the lower formwork (81) along the length direction of the lower formwork (81) are respectively slidingly embedded in the guide groove (621); the two side formworks (82) are respectively connected to the two sides of the lower formwork (81) along the length direction of the guide groove (621); the upper surfaces of the two support jacks (6), the side surfaces of the two side formworks (82) facing the other side formwork (82) and the upper surface of the lower formwork (81) constitute the pouring space of the top pressing structure.

9. The AAC assembled large panel cast-in-place and capping structure according to claim 8, characterized in that: Further include limiting piece (9); The guide groove (621) is equipped with the baffle (622) in one end along the guide groove (621) length direction; The baffle (622) is used for abutting one end of lower mould plate (81); One end of the limiting piece (9) is connected to the groove wall of the side of guide groove (621) away from baffle (622);The other end of the limiting piece (9) is used for abutting the one end of lower mould plate (81) away from baffle (622).

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