A connecting support structure at the joint of double T-plates

Abstract

This utility model discloses a connecting support structure at the joint of double-T slabs, relating to the field of building engineering technology. It includes two symmetrical double-T slabs, with a connecting support mechanism at the joint between them. The connecting support mechanism comprises two symmetrical fixing plates. This utility model features a rationally designed structure. The two fixing plates, made of high-strength hot-formed steel, are fixed to the sloping surface of the double-T slabs using expansion bolts. Welded support blocks and connecting blocks form a rigid frame. Bolts and nuts secure the symmetrical connecting blocks, creating a tight mechanical transmission structure at the joint of the double-T slabs. This disperses stress concentration, improves load-bearing capacity and deformation resistance, and solves the problem of discontinuous force transmission. Simultaneously, two rubber sealing strips are placed vertically within the joint. Through their elasticity and sealing properties, they remain in contact with the joint surface even when the double-T slabs shift slightly due to temperature changes or vibrations, preventing moisture infiltration, solving the problem of insufficient waterproofing, and ensuring structural durability.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a connection and support structure at the joint of a double T-plate. Background Technology

[0002] As a precast concrete component, double-T slabs will form joints between adjacent slabs after installation. These joints are key nodes for structural stress transfer and waterproof sealing. Since double-T slabs are prone to relative displacement under load during construction and may deform under the influence of temperature changes and vibrations during long-term use, if there is a lack of reliable connection support at the joints, it will lead to problems such as reduced structural integrity and water leakage. Therefore, a special connection support structure is required.

[0003] In existing technologies, the connection and support structure at the joint of double-T slabs can, to some extent, limit slab displacement and ensure the basic stability of the cast-in-place layer through simple filling or temporary fixing methods. However, existing structures are mostly single-function designs, resulting in problems such as discontinuous stress transmission, insufficient waterproofing performance, and poor coordination with the cast-in-place layer, making it difficult to meet long-term service requirements. Therefore, we provide a connection and support structure at the joint of double-T slabs to solve these problems. Utility Model Content

[0004] 1) Technical problems to be solved This utility model proposes a connection support structure at the joint of double T-plates. Through the cooperation between the fixing plate, sealing strip, support block, connecting block, through hole, bolt, and nut, it solves the problems of existing structures, which are mostly single-function designs, have discontinuous force transmission, insufficient waterproof performance, poor coordination with cast-in-place layers, and are difficult to meet the needs of long-term use.

[0005] (ii) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a connecting support structure at the joint of a double-T plate, comprising two symmetrical double-T plates, a connecting support mechanism provided at the joint between the two double-T plates, the connecting support mechanism comprising two symmetrical fixing plates, sealing strips fixedly connected to the side surfaces of the two fixing plates, a set of equidistantly arranged support blocks fixedly connected to the middle part of the slope surface of the two fixing plates that are close to each other, connecting blocks vertically fixedly connected to the lower surfaces of the two sets of support blocks, through holes opened on the side surfaces of the two sets of connecting blocks that are close to each other, bolts passing through the inner sidewalls of every two symmetrical through holes, and nuts threadedly connected to each set of bolts.

[0006] Furthermore, the two fixing plates are respectively fixed to the slope surface of the two double-T plates on the side close to each other by expansion screws.

[0007] Furthermore, the fixing plate is made of high-strength hot-formed steel.

[0008] Furthermore, both sealing strips are made of rubber.

[0009] Furthermore, both sealing strips have anti-slip textures on their outer surfaces.

[0010] Furthermore, both sealing strips are located within the joint of the two double-T plates, and the two sets of support blocks are perpendicular to the slopes of the two fixed plates.

[0011] Furthermore, the support block and the fixing plate are connected by welding.

[0012] Furthermore, both the support block and the connecting block are made of high-strength hot-formed steel.

[0013] Furthermore, the head of each bolt and the corresponding nut respectively clamp one of the mutually distant sides of a set of symmetrically arranged connecting blocks.

[0014] (iii) Beneficial effects: Compared with existing technologies, the connection and support structure at the joint of this double-T plate has the following advantages: I. The connecting support structure at the joint of the double-T slab consists of two fixed plates made of high-strength hot-formed steel, which are fixed to the sloping surface of the double-T slab with expansion bolts. These, along with welded support blocks and connecting blocks, form a high-strength rigid connection frame. Bolts and nuts are used to tighten the symmetrically arranged connecting blocks, creating a tight mechanical transmission structure at the joint of the two double-T slabs. This effectively disperses stress concentration at the joint when the double-T slabs are under load, significantly improving the overall load-bearing capacity and deformation resistance of the joint, and solving the problem of discontinuous force transmission in existing structures. Simultaneously, two sealing strips made of rubber and positioned vertically within the joint of the two double-T slabs. The excellent elasticity and sealing properties of the rubber ensure that even when the double-T slabs experience slight displacement due to temperature changes or vibration, they remain tightly fitted to the joint surface, effectively preventing moisture infiltration and addressing the insufficient waterproofing performance of existing structures, thus ensuring the durability of the double-T slab structure.

[0015] II. The connecting support structure at the joint of the double-T slabs features a fixing plate secured with expansion bolts. The threaded connection of the bolts and nuts facilitates quick tightening during installation and subsequent inspection and maintenance. The high-strength hot-formed steel fixing plate, support block, and connecting block have a long service life, reducing the frequency of later repairs and replacements, and lowering maintenance costs. Furthermore, the standardized design of each component makes construction more convenient and efficient, adaptable to different construction environments. In addition, the support block and connecting block, through the cooperation of bolts and nuts, provide stable support for the two double-T slabs, effectively limiting their relative deformation. Combined with the sealing effect of the sealing strip, this further reduces the possibility of leakage at the joint. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a bottom view of the three-dimensional structure of the connecting support mechanism of this utility model; Figure 3 This is a front view structural diagram of the connecting support mechanism of this utility model; Figure 4 This is a three-dimensional structural exploded view of the connecting support mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Double T plate; 2. Connecting support mechanism; 201. Fixing plate; 202. Sealing strip; 203. Support block; 204. Connecting block; 205. Through hole; 206. Bolt; 207. Nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-5 As shown, this utility model provides a technical solution: a connecting support structure at the joint of a double-T plate, comprising two symmetrical double-T plates 1, a connecting support mechanism 2 provided at the middle joint of the two double-T plates 1, the connecting support mechanism 2 comprising two symmetrical fixing plates 201, sealing strips 202 fixedly connected to the side surfaces of the two fixing plates 201, a set of equidistantly arranged support blocks 203 fixedly connected to the middle part of the slope surface of the two fixing plates 201 that are close to each other, connecting blocks 204 vertically fixedly connected to the lower surface of the two sets of support blocks 203, through holes 205 opened on the side surfaces of the two sets of connecting blocks 204 that are close to each other, bolts 206 passing through the inner sidewall of each pair of symmetrical through holes 205, and a nut 207 threadedly connected to each set of bolts 206.

[0021] The sealing strip 202 is preferably made of rubber.

[0022] Two fixed plates 201 are made of high-strength hot-formed steel and are fixed to the sloping surface of the double-T plate 1 with expansion bolts. Together with the welded support block 203 and connecting block 204, they form a high-strength rigid connection frame. Bolts 206 and nuts 207 are used to tighten the symmetrically arranged connecting blocks 204, which can form a tight mechanical transmission structure at the joint of the two double-T plates 1, effectively dispersing the stress concentration at the joint when the double-T plates 1 are under force, significantly improving the overall load-bearing capacity and deformation resistance at the joint of the double-T plates 1, and solving the problem of discontinuous force transmission in the existing structure. At the same time, two sealing strips 202 are made of rubber and are in a vertical position, located inside the joint of the two double-T plates 1. The good elasticity and sealing properties of the rubber material can always keep it tightly attached to the joint surface of the double-T plates 1 when the double-T plates 1 undergo slight displacement due to temperature changes or vibration, effectively preventing water infiltration, solving the problem of insufficient waterproof performance in the existing structure, and ensuring the durability of the double-T plate 1 structure.

[0023] Two fixing plates 201 are respectively fixed to the slopes of the two double-T plates 1 on the side closest to each other by expansion bolts. The fixing plates 201 are made of high-strength hot-formed steel. The two sealing strips 202 are both made of rubber. The outer surface of the two sealing strips 202 is provided with anti-slip texture. The two sealing strips 202 are located in the splice seam of the two double-T plates 1. Two sets of support blocks 203 are perpendicular to the slopes of the two fixing plates 201 respectively. The support blocks 203 are connected to the fixing plates 201 by welding. The support blocks 203 are made of high-strength hot-formed steel. The connecting blocks 204 are made of high-strength hot-formed steel. The head of each bolt 206 and the corresponding nut 207 respectively clamp the opposite side of a symmetrically arranged connecting block 204.

[0024] The fixing plate 201 is secured with expansion bolts. The threaded connection between the bolts 206 and the nuts 207 facilitates quick tightening during installation and subsequent inspection and maintenance. The fixing plate 201, support block 203, and connecting block 204, made of high-strength hot-formed steel, have a long service life, reducing the frequency of later repairs and replacements, and lowering maintenance costs. Furthermore, the standardized design of each component makes construction more convenient and efficient, adaptable to different construction environments. In addition, the support block 203 and connecting block 204, through the cooperation of bolts 206 and nuts 207, provide stable support for the two double-T plates 1, effectively limiting the relative deformation of the two double-T plates 1. Combined with the sealing effect of the sealing strip 202, this further reduces the possibility of leakage at the joints.

[0025] Working principle: When installing the connecting support structure at the joint of the double-T plate 1, firstly, two fixing plates 201 are fixed to the slope surface of the two symmetrical double-T plates 1 on one side using expansion bolts. At this time, the sealing strip 202 on the fixing plate 201 is located inside the joint of the double-T plate 1. The elasticity of the rubber sealing strip 202 achieves initial sealing. Since the fixing plate 201 is made of high-strength hot-formed steel, it can provide a stable support foundation for subsequent connecting components. The support block 203 welded on the fixing plate 201 is fixedly connected to the connecting block 204. The two sets of connecting blocks 204 are symmetrically arranged, and the through holes 205 on their sides allow the bolts 206 to pass through. By screwing the nuts 207 into the bolts 206, the threaded engagement of the bolts 206 and nuts 207 pulls the two symmetrical connecting blocks 204 towards the middle, thereby driving the two sets of support blocks 203 and... The fixing plates 201 move closer together, gradually pressing the sealing strip 202 against the joint of the two double-T plates 1, thus sealing the joint. During the stress process, the load borne by the double-T plates 1 is transferred to the support block 203 and the connecting block 204 through the fixing plates 201. Due to the tightening effect of the bolts 206 and nuts 207, the two sets of connecting blocks 204 form an integral load-bearing structure, evenly transferring the load to the two double-T plates 1, avoiding deformation at the joint due to uneven stress. At the same time, the rubber sealing strip 202 remains sealed under the pressure of the double-T plates 1, preventing moisture from seeping in and ensuring the waterproof performance of the structure. When combined with the cast-in-place layer, the support block 203 and the connecting block 204 are embedded in the cast-in-place concrete, making the joint and the cast-in-place layer a solid whole, jointly bearing the structural load, realizing the stability, sealing and cooperative load-bearing functions of the connection support at the joint of the double-T plates 1.

[0026] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the protection scope of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A connecting support structure at the joint of double-T plates, comprising two mutually symmetrical double-T plates (1), characterized in that: A connecting support mechanism (2) is provided at the middle splice of the two double T plates (1). The connecting support mechanism (2) includes two mutually symmetrical fixing plates (201). A sealing strip (202) is fixedly connected to the side surface of the two fixing plates (201). A set of equidistantly arranged support blocks (203) is fixedly connected to the middle part of the slope surface of the two fixing plates (201) that are close to each other. A connecting block (204) is vertically fixedly connected to the lower surface of the two sets of support blocks (203). A through hole (205) is opened on the side surface of the two sets of connecting blocks (204) that are close to each other. A bolt (206) is passed through the inner side wall of each pair of mutually symmetrical through holes (205). A nut (207) is threadedly connected to each set of bolts (206).

2. The connection support structure at the joint of a double-T plate according to claim 1, characterized in that: The two fixing plates (201) are respectively fixed to the slope surface of the two double T plates (1) on one side close to each other by expansion screws.

3. The connection support structure at the joint of a double-T plate according to claim 1, characterized in that: The fixing plate (201) is made of high-strength hot-formed steel.

4. The connection support structure at the joint of a double-T plate according to claim 2, characterized in that: Both of the sealing strips (202) are made of rubber.

5. The connection support structure at the joint of a double-T plate according to claim 2, characterized in that: The outer surfaces of both sealing strips (202) are provided with anti-slip texture.

6. The connection support structure at the joint of a double-T plate according to claim 2, characterized in that: Both of the sealing strips (202) are located within the joint of the two double T plates (1).

7. The connection support structure at the joint of a double-T plate according to claim 2, characterized in that: The two sets of support blocks (203) are perpendicular to the slope surfaces of the two fixed plates (201).

8. The connection support structure at the joint of a double-T plate according to claim 4, characterized in that: The support block (203) and the fixing plate (201) are connected by welding.

9. The connection support structure at the joint of a double-T plate according to claim 4, characterized in that: Both the support block (203) and the connecting block (204) are made of high-strength hot-formed steel.

10. The connection support structure at the joint of a double-T plate according to claim 5, characterized in that: The head of each bolt (206) and the corresponding nut (207) respectively clamp one of the mutually distant sides of a set of symmetrically arranged connecting blocks (204).

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