Split type force transmission device

Abstract

The utility model relates to the field of building construction discloses a split type force transmission device, including first component, second component, the first component includes fixed connection's first buffer board and first force transmission rod, the second component includes fixed connection's second buffer board and second force transmission rod, the first buffer board and the second buffer board all are established in displacement guide hole, the first buffer board is through fastening device and is slipped the connection with the second buffer board of displacement guide hole penetration, the utility model discloses a first component and second component when uneven settlement occurs, produce the relative sliding in vertical direction, solved because of the settlement difference difficult to observe, leading to the nut bolt of existing force transmission component connecting place disassembly not in time, the problem of disassembly complicated, avoided because stress concentration leads to the problem of concrete cracking of post-pouring band both sides.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a split-type force transmission device. Background Technology

[0002] During building construction, settlement refers to the phenomenon where the foundation soil of a building compresses and deforms under its own weight and external loads due to geological, design, and construction factors, causing the building to sink as a whole or in parts. When the amount of settlement varies significantly between different parts of the building, it is called uneven settlement.

[0003] Settlement strips are designed to address the differential settlement between the main building and the podium of a high-rise building. They can only be poured after the main structure is completed and the settlement has stabilized. Uneven settlement can easily lead to cracking and stress concentration in the concrete of the settlement strip. To prevent brittle failure of the load-bearing components within the settlement strip due to stress caused by the differential settlement, a common practice is to manually remove the bolts and nuts connecting the load-bearing components in the later stages of settlement to reduce stress concentration. However, in practice, it is difficult to observe settlement changes, determine the specific removal time, and handle the large number of nuts and bolts, resulting in a significant amount of work. Furthermore, the removal efficiency is low due to the stress already generated in the later stages of settlement.

[0004] Therefore, there is an urgent need for a force transmission device that can adapt to settlement differences and disperse stress when settlement is uneven. Utility Model Content

[0005] The purpose of this utility model is to provide a split-type force transmission device that can generate relative sliding without disassembling nuts and bolts, thereby releasing the stress on the force transmission device caused by uneven settlement, and achieving the purpose of saving labor costs and improving stress release efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A split-type force transmission device includes a first component and a second component. The first component includes a first buffer plate and a first force transmission rod that are fixedly connected. The second component includes a second buffer plate and a second force transmission rod that are fixedly connected. Displacement guide holes are provided on both the first buffer plate and the second buffer plate. The first buffer plate is slidably connected to the second buffer plate through the displacement guide holes by a fastening device.

[0008] As a further embodiment of this utility model: In order to prevent the first buffer plate and the second buffer plate from being displaced relative to each other in the horizontal direction, the first buffer plate has an upward-opening U-shaped groove on the contact surface opposite to the second buffer plate for embedding the second buffer plate.

[0009] As a further aspect of this utility model: in order for the relative sliding between the first buffer plate and the second buffer plate to occur along the direction of settlement difference, the displacement guide hole is an oblong hole.

[0010] As a further embodiment of this utility model: in order to connect the first buffer plate and the second buffer plate, the fastening device includes threaded bolts and nuts.

[0011] As a further aspect of this utility model: in order to prevent excessive friction during relative sliding, the contact surfaces of the fastening device with the first buffer plate and the second buffer plate are all covered with a lubricating layer.

[0012] As a further aspect of this utility model: In order to improve the shear resistance of this force transmission device, shear studs are uniformly fixed on the outer surfaces of the first force transmission rod and the second force transmission rod along the length direction.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model has a novel structure. Because the first and second buffer plates of the force transmission device are provided with displacement guide holes, and the first and second buffer plates are slidably connected by a fastening device that passes through the displacement guide holes, when uneven settlement occurs on both sides of the post-cast strip, the first and second buffer plates can slide relative to each other to release the stress on the force transmission device, reduce the workload of manually disassembling bolts and nuts, and improve the efficiency of stress reduction of the force transmission device. The lubricating layer covering the contact surface between the fastening device and the first and second buffer plates reduces the friction during relative sliding.

[0015] The U-shaped grooves formed on the first buffer plate for embedding the second buffer plate help ensure the relative sliding between the first and second buffer plates and limit the horizontal displacement between them, ensuring that the force transmission device transmits force evenly in the length direction. The shear studs set on the outer surfaces of the first and second force transmission rods are embedded in the concrete on both sides of the post-cast strip to improve the shear bearing capacity of the force transmission device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the split-type force transmission device of this utility model;

[0017] Figure 2 This is a schematic diagram of the split-type force transmission device of this utility model;

[0018] Figure 3 This is a side view of the split-type force transmission device of this utility model;

[0019] Figure 4 This is a top view of the split-type force transmission device of this utility model;

[0020] In the figure: 1-first component, 11-first buffer plate, 111-U-shaped groove, 12-first force transmission rod, 2-second component, 21-second buffer plate, 22-second force transmission rod, 3-fastening device, 31-nut, 32-bolt, 4-displacement guide hole, 5-shear stud. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 In this embodiment of the utility model, a split force transmission device includes a first component 1 and a second component 2. The first component 1 and the second component 2 are arranged opposite to each other. The first component 1 includes a first buffer plate 11 and a first force transmission rod 12 welded together. The second component 2 includes a second buffer plate 21 and a second force transmission rod 22 welded together. The first force transmission rod 12 is embedded in the main building with a large settlement, and the second force transmission rod 22 is embedded in the podium building with a small settlement.

[0023] The dimensions of the first buffer plate 11 and the second buffer plate 21 are both 200mm×200mm×15mm. The first buffer plate 11 and the second buffer plate 21 are symmetrically provided with four displacement guide holes 4 at the four corners. The displacement guide holes 4 are oblong holes with a center distance of 20-40mm. The long axis of the displacement guide holes 4 is in the same direction as the settlement direction. The bolts 32 pass through the displacement guide holes 4 and the nuts 31 are threaded to connect the first buffer plate 11 and the second buffer plate 21, so that when the settlement difference occurs, the first buffer plate 11 and the first buffer plate 21 will slide relative to each other in the vertical direction, reducing the stress acting on the force transmission device.

[0024] On the contact surface opposite to the second buffer plate 21, the first buffer plate 11 has an upward-opening U-shaped groove 111. The second buffer plate 21 is embedded in the U-shaped groove 111. The second buffer plate 21 is fixed by the horizontal side walls of the U-shaped groove 111, which restricts the relative displacement of the second buffer plate 21 in the horizontal direction and prevents the force transmission device from transmitting force unevenly along the length direction.

[0025] The bolt 32 and nut 31 are threaded together. The bolt 32 passes through the displacement guide holes on the first buffer plate 11 and the second buffer plate 21 in sequence and is then fixed by the nut 31. The contact surfaces of the bolt 32 nut, the nut 31 and the first buffer plate 11 and the second buffer plate 21 are all covered with a lubricating layer. In this embodiment, the lubricating layer is set as a carbon powder layer to reduce the friction between the first buffer plate 11 and the second buffer plate 21, so that the first buffer plate 11 and the second buffer plate 21 can slide relative to each other along the long axis of the displacement guide hole 4.

[0026] The first force transmission rod 12 and the second force transmission rod 22 are uniformly and symmetrically welded with shear studs 5 at 150mm intervals along the length direction on both sides of the outer surface. This is used to transmit the horizontal shear force generated when the settlement between the main building and the podium is not stable, thereby improving the shear resistance of the force transmission device and preventing the force transmission device from being misaligned or unstable during the settlement difference stage.

[0027] This utility model has a novel structure and stable operation. In use, the first force transmission rod 12 is pre-embedded in the main building with a large settlement, and the second force transmission rod 22 is pre-embedded in the podium with a smaller settlement. The second buffer plate 21 is embedded in the U-shaped groove. The bolt 32 passes through the displacement guide hole 4 on the first buffer plate 11 and the second buffer plate 21 and is threaded to connect the nut 31, so that the first buffer plate 11 and the second buffer plate 21 are slidably connected. When the two sides of the pouring strip settle after settlement, the first force transmission rod 12 has a relatively larger settlement and will have a vertical downward displacement tendency relative to the second force transmission rod 22. The stress generated by the settlement difference is transmitted to the first buffer plate 11 and the second buffer plate 21 respectively, forcing the first buffer plate 11 and the second buffer plate 21 to slide relative to each other and release the additional stress.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0029] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A split-type force transmission device, comprising a first component and a second component, characterized in that: The first component includes a first buffer plate and a first force transmission rod that are fixedly connected. The second component includes a second buffer plate and a second force transmission rod that are fixedly connected. Displacement guide holes are provided on both the first buffer plate and the second buffer plate. The first buffer plate is slidably connected to the second buffer plate through the displacement guide hole by a fastening device.

2. The split-type force transmission device according to claim 1, characterized in that: The first buffer plate has an upward-opening U-shaped groove on the contact surface opposite to the second buffer plate for embedding the second buffer plate.

3. The split-type force transmission device according to claim 1, characterized in that: The displacement guide hole is an oblong hole.

4. The split-type force transmission device according to claim 1, characterized in that: The fastening device includes threaded bolts and nuts.

5. The split-type force transmission device according to claim 1, characterized in that: The contact surfaces of the fastening device with the first buffer plate and the second buffer plate are all covered with a lubricating layer.

6. The split-type force transmission device according to claim 1, characterized in that: Shear studs are uniformly fixed on the outer surfaces of the first and second force transmission rods along their length.

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