Concrete core tube and floor plate connecting structure of fabricated building

Abstract

The utility model provides a concrete core tube and floor plate connecting structure of an assembly type building. The problem that in the prior art, a connecting structure between a floor and a core tube needs to be optimized is effectively solved. According to the technical scheme for solving the problems, the anti-collision structure comprises a floor slab, an annular groove in a core tube and an annular plate in the annular groove, the section of the annular plate is in a U shape with an outward opening, a plurality of sets of jacking connecting structures are arranged on the periphery of the annular plate, each set of jacking connecting structure comprises two jacking units, and the floor slab is located between the two jacking units; the jacking unit comprises a base fixed to the floor, a sliding rail is fixed to the side, close to the annular plate, of the base, a sliding block capable of moving left and right is arranged in the sliding rail, an elastic energy dissipation component is installed between the sliding block and the base, a jacking rod is hinged to the upper side of the sliding block, and the other end of the jacking rod jacks the annular plate.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a connection structure between a concrete core tube and floor slabs in a prefabricated building. Background Technology

[0002] The concrete core tube plays a crucial supporting role. Existing methods for connecting the concrete core tube to the floor slabs sometimes use bolted connections, which are prone to loosening due to vibrations during use, resulting in low safety and increased susceptibility to damage to the floor slabs under stress. In the prior art, patent document CN217299402U discloses a connection structure between the concrete core tube and floor slabs in prefabricated buildings. This structure uses a safety anti-detachment fixing mechanism 6 and an energy-absorbing and stress-dissipating protection mechanism 7 mounted on the side frame 4 to achieve vibration damping and energy dissipation between the core tube and the floor slab. However, this design has significant drawbacks in use. First, the energy-absorbing and stress-dissipating protection mechanism 7 is located between the floor slab and the side frame, which is not very effective against vibration stresses between the floor slab and the core tube concrete components, and the connection between the floor slab and the core tube needs optimization. Second, when stress occurs, the core tube of this structure cannot quickly balance the surrounding forces, and its coordination needs improvement. Third, because the annular groove 61 on the core tube lacks further protective measures, cracks easily appear at the corners of the annular groove during repeated vibrations.

[0003] To address the aforementioned issues, a connection structure between the concrete core tube and floor slabs in prefabricated buildings is provided. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a connection structure between the concrete core tube and the floor slab of a prefabricated building, which effectively solves the problem that the connection structure between the floor slab and the core tube in the prior art needs to be optimized.

[0005] The technical solution includes a floor slab, an annular groove on the core tube, and an annular plate inside the annular groove. The annular plate has a U-shaped cross-section with the opening facing outwards. Multiple sets of clamping connection structures are arranged around the annular plate. Each set of clamping connection structures includes two clamping units. The floor slab is located between the two clamping units. The clamping unit includes a base fixed to the floor slab. A slide rail is fixed on the side of the base near the annular plate. A slider that can move left and right is inside the slide rail. An elastic energy dissipation component is installed between the slider and the base. A push rod is hinged to the upper side of the slider. The other end of the push rod clamps the annular plate.

[0006] Furthermore, a guard rod is fixed to one end of the top rod inside the U-shaped plate cavity, forming a T-shaped structure.

[0007] Furthermore, the elastic energy dissipation component is a high-strength spring.

[0008] This utility model has an ingenious structure that can fully dissipate energy between the floor slab and the core tube. When vibration and sway occur between the core tube and the floor slab, the connection structure between the core tube and the floor slab can quickly balance the stress in all directions. At the same time, by assuming an annular steel ring cushion layer, cracks are less likely to occur in the concrete components of the core tube. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0010] Figure 2 This is the front sectional view of the present invention.

[0011] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle.

[0012] Figure 4 This is a schematic diagram of the clamping unit in this utility model. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Depend on Figures 1 to 4 The present invention includes a floor slab 1, an annular groove on a core tube 2, and an annular plate 3 inside the annular groove. The cross-section of the annular plate 3 is U-shaped with an outward opening. Multiple sets of clamping connection structures are arranged around the annular plate 3. Each set of clamping connection structures includes two clamping units. The floor slab 1 is located between two clamping units. The clamping unit includes a base 4 fixed on the floor slab 1. A slide rail 5 is fixed on the side of the base 4 near the annular plate 3. A slider 8 that can move left and right is inside the slide rail 5. An elastic energy dissipation component is installed between the slider 8 and the base 4. A top rod 9 is hinged to the upper side of the slider 8. The other end of the top rod 9 clamps the annular plate 3.

[0015] In order to increase the contact area between the push rod 9 and the annular plate 3, a guard rod 6 is fixed on one end of the push rod 9 inside the U-shaped plate cavity, forming a T-shaped structure.

[0016] In order to balance the forces around the core tube 2 and to quickly dissipate vibrations, the elastic energy dissipation component is a high-strength spring 7.

[0017] It is worth noting that this solution employs multiple sets of clamping mechanisms to fix the core tube 2 to the floor slab 1. This makes axial displacement between the floor slab 1 and the core tube 2 very difficult. Furthermore, this design ensures that the force exerted by the floor slab 1 on the core tube 2 is perpendicular to the axis of the core tube 2. The elastic energy dissipation component can also be a hydraulic cylinder or a pneumatic cylinder, selected according to the specific site conditions.

[0018] The slider 8 is a T-shaped slider 8, and the slide rail 5 is a T-shaped slide rail. The slider 8 is located inside the T-shaped slider 8 and can slide left and right.

[0019] When stress occurs between floor slab 1 and core tube 2 during use, the elastic energy dissipation component first buffers and absorbs the force, while the two top rods 9 in the two corresponding top clamping units keep in contact with the upper and lower side walls of the U-shaped plate cavity, ensuring that the floor slab 1 and core tube 2 will not be axially misaligned while dissipating energy.

[0020] In the above, assuming that the elastic energy dissipation component in the clamping unit is subjected to compressive force, the elastic energy dissipation component applies clamping force to the annular plate 3 through the slider 8, the push rod 9, and the guard rod 6. The elastic energy dissipation component absorbs vibration and force, achieving the effect of shock absorption and buffering.

[0021] This utility model has an ingenious structure. Through this structure, energy can be fully dissipated between the floor slab 1 and the core tube 2. When vibration and shaking occur between the core tube 2 and the floor slab 1, the connection structure between the core tube 2 and the floor slab 1 can quickly balance the stress in all directions. At the same time, by assuming an annular steel ring cushion layer, cracks are less likely to occur in the concrete components of the core tube 2.

Claims

1. A connection structure between a concrete core tube and floor slabs in a prefabricated building, characterized in that, The system includes a floor slab (1), an annular groove on the core tube (2), and an annular plate (3) inside the annular groove. The annular plate (3) has a U-shaped cross-section with the opening facing outward. Multiple sets of clamping connection structures are arranged around the annular plate (3). Each set of clamping connection structures includes two clamping units. The floor slab (1) is located between the two clamping units. The clamping unit includes a base (4) fixed on the floor slab (1). A slide rail (5) is fixed on the side of the base (4) near the annular plate (3). There is a slider (8) in the slide rail (5) that can move left and right. An elastic energy dissipation component is installed between the slider (8) and the base (4). A top rod (9) is hinged to the upper side of the slider (8). The other end of the top rod (9) clamps the annular plate (3).

2. The connection structure between the concrete core tube and the floor slab of a prefabricated building according to claim 1, characterized in that, The top rod (9) is fixed with a guard rod (6) at one end inside the U-shaped plate cavity, forming a T-shaped structure.

3. The connection structure between the concrete core tube and the floor slab of a prefabricated building according to claim 1, characterized in that, The elastic energy dissipation component is a high-strength spring (7).

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