Prefabricated building roof structure

Abstract

The utility model discloses an assembly type building roof structure, including a plurality of prefabricated panels, a plurality of prefabricated panels one side is equipped with first connecting portion, and the other side is equipped with second connecting portion, and first connecting portion and the second connecting portion of adjacent prefabricated panel alignment form cast -in -place section, and first connecting portion and second connecting portion between through connecting piece realize cast -in -place section split locking, and connecting piece with adjacent prefabricated panel between be equipped with connecting reinforcing steel bars, solved the traditional assembly type building roof prefabricated panel splicing easy cracking, the whole force disjointing the pain point of disjunction, greatly enhanced the structural stability and bearing capacity.

Description

Technical Field

[0001] This utility model relates to a prefabricated building roof structure. Background Technology

[0002] Currently, prefabricated roof panels are widely used in construction. These panels are prefabricated in a prefabrication yard and then installed and connected on the construction site to form a complete roof panel. In prefabricated frame structures, the connections between roof panels not only secure multiple panels but also serve to transfer loads. Therefore, a reasonable connection method is crucial to ensuring the stable construction of the floors.

[0003] However, existing precast roof panels have some problems in the connection process, including insufficient connection strength and unstable connections. In addition, the structure of precast roof panels is complex, the prefabrication process is inconvenient, and the installation process is cumbersome, thus affecting construction efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a prefabricated building roof structure. This roof panel solves the problems of easy cracking and overall structural discontinuity in traditional prefabricated building roof panels, and significantly enhances structural stability and load-bearing capacity.

[0005] It includes multiple precast panels, each with a first connecting part on one side and a second connecting part on the other side. The first connecting part is aligned with the second connecting part of the adjacent precast panel to form a cast-in-place section. The cast-in-place sections are spliced ​​and locked together by connectors. Connecting steel bars are provided between the connectors and the adjacent precast panels.

[0006] Furthermore, the first connecting part includes a first inclined groove on one side of the prefabricated panel, a first vertical groove evenly distributed along the length of the panel at the bottom of the first inclined groove, and a first slot on both the front and rear inner walls of the first inclined groove.

[0007] Furthermore, the second connecting part includes a second inclined groove on the other side of the prefabricated panel, and a plurality of second vertical grooves are evenly distributed along the length of the panel at the bottom of the second inclined groove. The front and rear inner walls of the second inclined groove are provided with second slots.

[0008] Furthermore, the second vertical groove is arranged adjacent to the first vertical groove and forms a vertical casting cavity with the side wall of the adjacent precast panel respectively.

[0009] Furthermore, the second vertical groove is aligned with the first vertical groove to form a vertical casting cavity.

[0010] Furthermore, both the first and second inclined grooves are provided with reserved sleeves, which are used for connecting one end of the connecting steel bars.

[0011] Furthermore, the connector includes a first U-shaped locking block and a second U-shaped locking block, which are respectively engaged with the first and second locking slots at the front and rear ends. A vertical connecting plate is connected between the first and second U-shaped locking blocks. The vertical connecting plate is provided with multiple connecting holes. One end of the connecting steel bar is inserted into the reserved sleeve, and the other end passes through the connecting hole and is welded to the connecting hole.

[0012] Furthermore, the connector includes a first U-shaped locking block and a second U-shaped locking block, which are respectively engaged with the first and second locking slots at the front and rear ends. A vertical connecting plate is connected between the first and second U-shaped locking blocks, and the vertical connecting plate has holes. The vertical connecting plate is provided with multiple connecting holes, and both ends of the connecting steel bar are threaded. One end is threaded to a reserved sleeve, and the other end passes through the connecting hole and is threaded to a bolt.

[0013] Furthermore, the first and second vertical grooves have the same shape, and the cross-section of the vertical grooves is semi-circular or V-shaped.

[0014] Beneficial effects:

[0015] 1. This application forms a cast-in-place section through the first and second connecting parts. Compared with traditional flat joint splicing, it increases the contact area between the cast-in-place concrete and the precast panel. The oblique contact surface can not only transfer shear force through the bonding force of the concrete, but also resist the relative sliding between the panels by means of the interlocking effect of the groove. This avoids the joint cracking caused by the load, fundamentally solving the pain points of easy cracking and overall stress disconnection of traditional precast panels in prefabricated building roofs, and greatly enhancing the structural stability and load-bearing capacity.

[0016] 2. This application solves the problems of traditional prefabricated building roof splicing, which requires the installation of measuring molds on the side of the precast slab before pouring concrete, by prefabricating both the first and second connecting parts in the factory, eliminating the need for secondary grooving, drilling, or setting up complex templates on site. This solves the problems of long time and complicated steps required for pouring concrete when splicing prefabricated building roofs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a prefabricated panel;

[0018] Figure 2 A top view of adjacent prefabricated panels joined together;

[0019] Figure 3 This is a schematic diagram of the welding of connecting steel bars;

[0020] Figure 4 This is a schematic diagram of the bolt connection for connecting steel bars;

[0021] Figure 5 This is a schematic diagram of the connector;

[0022] Figure 6 This is a top view showing the vertical groove forming a V-shape.

[0023] Reference numerals in the attached drawings: 1. Precast panel; 2. First connecting part; 2-1. First inclined groove; 2-2. First vertical groove; 2-3. First slot; 3. Second connecting part; 3-1. Second inclined groove; 3-2. Second vertical groove; 3-3. Second slot; 4. Cast-in-place section; 5. Connecting reinforcement; 6. Vertical casting cavity; 7. Reserved sleeve; 8. Connector; 8-1. First U-shaped locking block; 8-2. Second U-shaped locking block; 8-3. Vertical connecting plate; 8-4. Hole; 8-5. Connecting hole. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] For reference Figures 1-6 As shown, this utility model provides a prefabricated roof structure, including multiple prefabricated panels 1. The prefabricated panels 1 are prefabricated in a factory and have a steel reinforcement skeleton inside. One side of the prefabricated panel 1 has a first connecting part 2, and the other side has a second connecting part 3. The first connecting part 2 and the second connecting part 3 of the adjacent prefabricated panel 1 are aligned to form a cast-in-place section 4. The first connecting part 2 and the second connecting part 3 are connected and locked together by a connector 8. A connecting steel bar 5 is provided between the connector 8 and the adjacent prefabricated panel 1. Specifically, the first connecting part 2 includes a first inclined groove 2-1 on one side of the prefabricated panel 1. The bottom of the first inclined groove 2-1 has multiple first vertical grooves 2-2 evenly distributed along the length of the panel. The second connecting part 3 includes a second inclined groove 3-1 on the other side of the prefabricated panel 1. The bottom of the second inclined groove 3-1 has multiple second vertical grooves 3-2 evenly distributed along the length of the panel. The first vertical grooves 2-2 and the second vertical grooves 3-2 have the same shape, and the cross-section of the vertical grooves is semi-circular or V-shaped. The first inclined groove 2-1 has a first slot 2-3 on both its front and rear inner walls, and the second inclined groove 3-1 has a second slot 3-3 on both its front and rear inner walls. The first inclined groove 2-1 and the second inclined groove 3-1 are joined together to form a cast-in-place section 4. The cast-in-place section 4 is designed with an inclination, which increases the contact area between the cast-in-place concrete and the precast panel 1 compared to traditional flat joint splicing. The inclined contact area can transfer shear force through the bond force of the concrete. The cast-in-place section 4 is connected to the vertical casting cavity 6 formed by the vertical groove for joint casting, which strengthens the connection between adjacent precast panels 1 through cast-in-place concrete. This solves the problems of easy cracking at the splicing points of traditional prefabricated building roof panels and the overall disjointness of the load-bearing structure, thereby enhancing the structural stability and load-bearing capacity.

[0026] For reference Figures 3-5As shown, both the first inclined groove 2-1 and the second inclined groove 3-1 are provided with reserved sleeves 7. The reserved sleeves 7 are used to connect one end of the connecting steel bar 5, and the other end is connected to the connector 8. Specifically, the connector 8 includes a first U-shaped locking block 8-1 and a second U-shaped locking block 8-2. The first U-shaped locking block 8-1 and the second U-shaped locking block 8-2 are respectively engaged with the first locking groove 2-3 and the second locking groove 3-3 at the front and rear ends. A vertical connecting plate 8-3 is connected between the first U-shaped locking block 8-1 and the second U-shaped locking block 8-2, and the vertical connecting plate 8-3 has holes 8-4. The holes 8-4 allow concrete flow and strengthen the connection. The vertical connecting plate 8-3 has multiple connecting holes 8-5. One end of the connecting steel bar 5 is inserted into the reserved sleeve 7, and the other end passes through the connecting hole 8-5 and is welded to the connecting hole 8-5, thus strengthening the connection between adjacent precast panels 1. Figure 4 As shown, another type of connector 8 uses bolt connection. Specifically, the vertical connecting plate 8-3 is provided with multiple connecting holes 8-5. Both ends of the connecting steel bar 5 are threaded. One end is threaded to the reserved sleeve 7, and the other end passes through the connecting hole 8-5 and is threaded to the bolt.

[0027] Working method: Align the first connecting part 2 of the precast panel 1 with the second connecting part 3 of the adjacent precast panel 1. After alignment, the adjacent precast panels 1 are spliced ​​together through the connector 8. Then, one end of the connecting steel bar 5 is connected to the connecting part, and the other end is connected to the connector 8, so that a cast-in-place section 4 is formed between the first connecting part 2 and the second connecting part 3. At the same time, the setting of the connecting steel bar 5 strengthens the strength of the cast-in-place section 4 and the tightness of the connection between the adjacent precast panels 1. Then, concrete is poured in the cast-in-place section 4, and the adjacent precast panels 1 are formed into a whole through the concrete.

Claims

1. A prefabricated building roof structure, characterized in that: The system includes multiple precast panels (1), each of which has a first connecting part (2) on one side and a second connecting part (3) on the other side. The first connecting part (2) is aligned with the second connecting part (3) of the adjacent precast panel (1) to form a cast-in-place section (4). The first connecting part (2) and the second connecting part (3) are connected and locked together by a connector (8). The connector (8) is connected with a connecting steel bar (5) between it and the adjacent precast panel (1).

2. The prefabricated roof structure according to claim 1, characterized in that: The first connecting part (2) includes a first inclined groove (2-1) on one side of the prefabricated panel (1), and a plurality of first vertical grooves (2-2) are evenly distributed along the length of the panel at the bottom of the first inclined groove (2-1). The first groove (2-1) has first slots (2-3) on both the front and rear inner walls.

3. The prefabricated roof structure according to claim 2, characterized in that: The second connecting part (3) includes a second inclined groove (3-1) on the other side of the prefabricated panel (1). The bottom of the second inclined groove (3-1) is evenly distributed with a plurality of second vertical grooves (3-2) along the length of the panel. The inner walls of the front and rear sides of the second inclined groove (3-1) are provided with second slots (3-3).

4. The prefabricated roof structure according to claim 3, characterized in that: The second vertical groove (3-2) is arranged adjacent to the first vertical groove (2-2) and forms a vertical casting cavity (6) with the side wall of the adjacent precast panel (1).

5. The prefabricated roof structure according to claim 3, characterized in that: The second vertical groove (3-2) is aligned with the first vertical groove (2-2) to form a vertical casting cavity (6).

6. The prefabricated roof structure according to claim 4 or 5, characterized in that: Both the first inclined groove (2-1) and the second inclined groove (3-1) are provided with reserved sleeves (7), which are used to connect one end of the connecting steel bar (5).

7. The prefabricated roof structure according to claim 6, characterized in that: The connector (8) includes a first U-shaped locking block (8-1) and a second U-shaped locking block (8-2). The first U-shaped locking block (8-1) and the second U-shaped locking block (8-2) are respectively engaged with the first locking groove (2-3) and the second locking groove (3-3) at the front and rear ends. A vertical connecting plate (8-3) is connected between the first U-shaped locking block (8-1) and the second U-shaped locking block (8-2). The vertical connecting plate (8-3) is provided with multiple connecting holes (8-5). One end of the connecting steel bar (5) is inserted into the reserved sleeve (7), and the other end passes through the connecting hole (8-5) and is welded to the connecting hole (8-5).

8. The prefabricated roof structure according to claim 6, characterized in that: The connector (8) includes a first U-shaped locking block (8-1) and a second U-shaped locking block (8-2). The first U-shaped locking block (8-1) and the second U-shaped locking block (8-2) are respectively engaged with the first locking groove (2-3) and the second locking groove (3-3) at the front and rear ends. A vertical connecting plate (8-3) is connected between the first U-shaped locking block (8-1) and the second U-shaped locking block (8-2), and the vertical connecting plate (8-3) has holes (8-4). The vertical connecting plate (8-3) is provided with multiple connecting holes (8-5). Both ends of the connecting steel bar (5) are threaded. One end is threaded to the reserved sleeve (7), and the other end passes through the connecting hole (8-5) and is threaded to the bolt.

9. The prefabricated roof structure according to claim 7 or 8, characterized in that: The first vertical groove (2-2) and the second vertical groove (3-2) have the same shape, and the cross-section of the vertical groove is semi-circular or V-shaped.

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