A bearing device for hydraulic creeping form and construction method thereof

Abstract

The application discloses a bearing device for hydraulic creeping formwork and a construction method thereof, which comprises a joint sleeve, a screw rod, a pre-buried seat and a sleeve ring assembly. The joint sleeve is sleeved on the outer circumferential wall of one side of the screw rod and is connected with the screw rod through threads. The pre-buried seat is sleeved on the outer circumferential wall of the other side of the screw rod and is connected with the screw rod through threads. The sleeve ring assembly is sleeved on the middle position of the screw rod and can move in the axial direction. The sleeve ring assembly can be elongated and contracted in the axial direction through heating and cooling. The bearing device has the beneficial effects that the sleeve ring assembly is elongated in the axial direction, the concrete flows into the sleeve ring assembly, the concrete in the sleeve ring assembly is compacted when the sleeve ring assembly is contracted in the axial direction, the sleeve ring assembly on the bearing device is compactly contacted with the concrete structure, the connection between the whole bearing device and the concrete structure is stable, and the bearing device cannot be loosened in the concrete structure.

Description

Technical Field

[0001] This invention relates to the field of climbing formwork wall attachment technology in the field of building construction technology, specifically to a load-bearing device for hydraulic climbing formwork and its construction method. Background Technology

[0002] Climbing formwork, also known as climbing scaffolding or lifting scaffolding, is a new type of scaffolding system developed in recent years. It is mainly used in high-rise shear wall buildings. It can climb up or down along the building. This system has completely changed scaffolding technology. First, it eliminates the need to dismantle and reassemble scaffolding. Second, it eliminates the dismantling and assembly process of scaffolding. It is not limited by the height of the building and greatly saves manpower and materials.

[0003] Typically, climbing formwork devices are hydraulically driven, hence they are also called hydraulic climbing formwork devices. These devices are connected to a load-bearing device, or load-bearing joint, which is mostly embedded within the building's concrete structure. The load-bearing joint is inserted into and locked to the concrete structure. Once the load-bearing joint is secured, the hydraulic climbing formwork device, through its hydraulic lifting mechanism, causes the components within it, i.e., the drive rails, to move upwards.

[0004] However, concrete structures are formed through mixing, construction, and then setting. Most load-bearing joints are pre-embedded within the concrete structure during construction. After the concrete hardens, the joints are fixed within the structure. However, during the subsequent setting process, the concrete is not properly compacted, leaving it porous. Once the concrete sets, the connection between the load-bearing joints and the structure becomes loose, causing the joints to shift and become unstable. The hydraulic climbing formwork device can then detach from the concrete structure. Summary of the Invention

[0005] The technical problem to be solved by this invention is that the load-bearing device connected to the hydraulic climbing formwork device will become loose in the concrete structure. The purpose of this invention is to provide a load-bearing device for hydraulic climbing formwork and its construction method, in which the load-bearing device is firmly connected in the concrete structure and will not become loose in the concrete structure.

[0006] This invention is achieved through the following technical solution:

[0007] A support device for hydraulic climbing formwork includes:

[0008] Connector sleeve;

[0009] A screw, wherein the connector sleeve is fitted on the outer circumferential wall of one side of the screw, and the screw and the connector sleeve are connected by threads;

[0010] An embedded seat is sleeved on the outer circumferential wall on the other side of the screw rod, and the embedded seat is connected to the screw rod by a thread;

[0011] A collar assembly is fitted onto the middle position of the screw. The collar assembly is axially movable and can extend and contract in the axial direction by heating and cooling the collar assembly.

[0012] Optionally, the collar assembly includes a circular ring component and a heat-conducting strip;

[0013] The number of the annular components is multiple, and the annular components are arranged in an array along the axial direction of the collar assembly. There is a heat-conducting strip between two adjacent annular components, and the heat-conducting strip connects the two adjacent annular components. The number of heat-conducting strips is multiple, and the heat-conducting strips are arranged in an array along the circumferential direction of the collar assembly.

[0014] Optionally, the annular component is made of stainless steel, and the heat-conducting strip is made of aluminum, with the annular component and the heat-conducting strip welded together.

[0015] Optionally, the annular component includes a first semicircular ring and a second semicircular ring, the first semicircular ring and the second semicircular ring are connected to each other, and the inner peripheral wall of the first semicircular ring and the inner peripheral wall of the second semicircular ring are in contact with the outer peripheral wall of the screw.

[0016] Optionally, the end face of the first semicircular ring facing the second semicircular ring has an insertion port, and the end face of the second semicircular ring facing the first semicircular ring has a protrusion, which is inserted into the insertion port.

[0017] Optionally, the inner peripheral wall of the first semicircular ring has a welding hole for placing the welded body, the welding hole leading into the socket, and the welded body connecting the first semicircular ring and the protrusion.

[0018] Optionally, the protrusion is adapted to the size of the socket, and the longitudinal section of the protrusion and the socket is rectangular in the longitudinal direction of the first semicircular ring and the second semicircular ring.

[0019] Optionally, the screw has external threads on both sides, and the connector sleeve and the embedded seat each have internal threads. The external threads of the screw are adapted to the internal threads of the connector sleeve and the embedded seat. The connector sleeve, screw, and embedded seat are made of metal. A sliding rod component is located in the middle of the screw. A limiting ring is provided between the sliding rod component and the external threads. There are two limiting rings. The collar assembly is axially movable and sleeved on the sliding rod component, and the collar assembly is located between the two limiting rings.

[0020] Optionally, the length of the collar assembly in the axial direction is smaller than the distance between the two limiting rings.

[0021] A construction method for a load-bearing device for hydraulic climbing formwork includes the following steps:

[0022] Step 1): Embed the bearing device with the collar assembly inside the concrete structure;

[0023] Step 2): The bearing device is heated. After the collar assembly is heated, the entire collar assembly elongates in the axial direction.

[0024] Step 3): Perform compaction work on the concrete structure to ensure that the entire load-bearing device is in close contact with the concrete structure, wherein the concrete inside the concrete structure flows into the gap between the two adjacent ring components.

[0025] Step 4): Stop heating the bearing device and allow it to cool slowly to room temperature. At the same time, the entire collar assembly shrinks in the axial direction, and the concrete flowing into the gap between the two adjacent ring components is further compacted.

[0026] Step 5): Perform compaction work on the concrete structure to ensure that the entire load-bearing device is in close contact with the concrete structure, and wait for the concrete structure to set.

[0027] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0028] 1. The collar assembly of the present invention is sleeved in the middle position of the screw. The collar assembly can move axially on its own. By heating and cooling the collar assembly, it can elongate and contract in the axial direction. Since the collar assembly is sleeved in the middle position of the screw and can move axially on its own, the axial movement of the collar assembly can flexibly set the position of the collar assembly in the axial direction. On the other hand, the collar assembly itself elongates and contracts in the axial direction. When the entire collar assembly elongates in the axial direction, the concrete in the concrete structure flows into the collar assembly. When the entire collar assembly contracts in the axial direction, the concrete in the concrete structure is compacted by the collar assembly. The collar assembly has a tight contact with the concrete structure, which improves the tight connection between the collar assembly of the bearing device and the concrete structure. The connection between the entire bearing device and the concrete structure is stable, and the bearing device will not loosen in the concrete structure.

[0029] 2. The collar assembly of the present invention includes ring components and heat-conducting strips. There are multiple ring components, which are arranged in an array along the axial direction of the collar assembly. A heat-conducting strip is provided between two adjacent ring components. The heat-conducting strip is connected to the two adjacent ring components. The distance between two adjacent ring components in the collar assembly increases, which facilitates the flow of concrete in the concrete structure into the gap between the two adjacent ring components. When the entire collar assembly contracts, the distance between the two adjacent ring components decreases, and the concrete between the two adjacent ring components is compacted.

[0030] 3. The annular component of the present invention includes a first semi-circular ring and a second semi-circular ring, which are connected to each other. The inner circumferential wall of the first semi-circular ring and the inner circumferential wall of the second semi-circular ring are in contact with the outer circumferential wall of the screw. The reason for dividing the annular component into a first semi-circular ring and a second semi-circular ring is that the distance between the first semi-circular ring and the second semi-circular ring can be adjusted, and the inner diameter of the annular component can be adjusted. The inner diameter of the inner circumferential wall of the annular component can be adjusted. A small gap can be left between the annular component and the sliding rod component, or the annular component and the sliding rod component can be in direct contact. The small gap between the annular component and the sliding rod component allows concrete to be filled into the small gap between the annular component and the sliding rod component. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0032] Figure 1 This is a cross-sectional view of the present invention from the front view direction;

[0033] Figure 2 This is a front view structural diagram of the support device of the present invention;

[0034] Figure 3 This is a three-dimensional structural diagram of the screw of the present invention;

[0035] Figure 4 This is a three-dimensional structural diagram of the collar assembly of the present invention;

[0036] Figure 5 This is an exploded view of the annular component of the present invention;

[0037] Figure 6 This is a flowchart of the construction method of the present invention.

[0038] The attached diagram shows the markings and corresponding component names:

[0039] 1-Connector sleeve, 11-Internal thread, 2-Screw, 21-External thread, 22-Sliding rod component, 3-Embedded seat, 4-Collar assembly, 5-Bearing nut, 6-Concrete structure, 7-Limiting ring, 8-Circular ring component, 81-First semi-circular ring, 811-Socket, 812-Welding hole, 82-Second semi-circular ring, 821-Protrusion, 9-Heat-conducting strip, 10-Welded body. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are only for explaining this invention and are not intended to limit this invention.

[0041] Example 1

[0042] like Figure 1-2 As shown, a bearing device for hydraulic climbing formwork includes: a connector sleeve 1, a screw 2, a pre-embedded seat 3, and a collar assembly 4. The connector sleeve 1 is fitted on the outer circumferential wall of one side of the screw 2, and the screw 2 and the connector sleeve 1 are connected by threads. The pre-embedded seat 3 is fitted on the outer circumferential wall of the other side of the screw 2, and the pre-embedded seat 3 is connected to the screw 2 by threads. The collar assembly 4 is fitted in the middle position of the screw 2, and the collar assembly 4 can move axially on its own. By heating and cooling the collar assembly 4, the collar assembly 4 can extend and contract in the axial direction on its own.

[0043] like Figure 3 As shown, the screw 2 has external threads 21 on both its left and right sides, and the connector sleeve 1 and the embedded seat 3 each have internal threads 11. The external threads 21 of the screw 2 are compatible with the internal threads 11 of the connector sleeve 1 and the embedded seat 3, as shown. Figure 1 As shown, the external thread 21 on the right side of the screw 2 is connected to the bearing nut 5 through the interlocking of internal and external threads. A hook fixing plate (not shown in the figure) is placed between the bearing nut 5 and the concrete structure 6. The screw 2 passes through the hook fixing plate, and the bearing nut 5 locks the hook fixing plate between the bearing nut 5 and the concrete structure 6. The hook fixing plate connects to other components, and the bearing nut 5 is used to support the hook fixing plate. The joint sleeve 1, screw 2 and embedded seat 3 are made of metal. The middle position of the screw 2 is the sliding rod component 22. There is a limiting ring 7 between the sliding rod component 22 and the external thread 21. There are two limiting rings 7. The collar assembly 4 can move axially on the sliding rod component 22, and the collar assembly 4 is located between the two limiting rings 7. The length of the collar assembly 4 in the axial direction is smaller than the distance between the two limiting rings 7. On the one hand, the collar assembly 4 can move axially between the two limiting rings 7. On the other hand, the collar assembly 4 itself has space for elongation and contraction in the axial direction.

[0044] like Figure 4As shown, the collar assembly 4 includes a ring component 8 and a heat-conducting strip 9;

[0045] There are multiple annular components 8, arranged in an array along the axial direction of the collar assembly 4. A heat-conducting strip 9 connects two adjacent annular components 8. There are multiple heat-conducting strips 9, arranged in an array along the circumferential direction of the collar assembly 4. Figure 5 As shown, the annular component 8 is made of stainless steel. When heated, the annular component 8 transfers heat to the heat-conducting strip 9. The annular component 8 and the heat-conducting strip 9 are welded together. The heat-conducting strip 9 is made of aluminum. Aluminum has a good thermal conductivity and has the property of thermal expansion and contraction. When the heat-conducting strip 9 is heated, it will expand linearly, increasing the distance between two adjacent annular components 8. Therefore, the entire collar assembly 4 can elongate in the axial direction, that is, the length of the entire collar assembly 4 in the axial direction becomes longer. When the heat-conducting strip 9 cools down, it will contract linearly, decreasing the distance between two adjacent annular components 8. The entire collar assembly 4 can contract in the axial direction, that is, the length of the entire collar assembly 4 in the axial direction becomes shorter.

[0046] like Figure 5 As shown, the annular component 8 includes a first semicircular ring 81 and a second semicircular ring 82. The first semicircular ring 81 and the second semicircular ring 82 are connected to each other, and the inner peripheral wall of the first semicircular ring 81 and the inner peripheral wall of the second semicircular ring 82 are in contact with the outer peripheral wall of the screw 2.

[0047] The first semicircular ring 81 has a socket 811 on its end face facing the second semicircular ring 82. The second semicircular ring 82 has a protrusion 821 on its end face facing the first semicircular ring 81. The protrusion 821 is inserted into the socket 811. The inner circumferential wall of the first semicircular ring 81 has a welding hole 812 for placing the welding body 10 (i.e., the welding solder). The welding hole 812 leads into the socket 811. The welding body 10 is connected to the first semicircular ring 81 and the protrusion 821.

[0048] The protrusion 821 is adapted to the size of the socket 811. In the longitudinal direction of the first semicircular ring 81 and the second semicircular ring 82, the longitudinal section of the protrusion 821 and the socket 811 is rectangular.

[0049] The reason for dividing the ring component 8 into a first semi-circular ring 81 and a second semi-circular ring 82 is that the distance between the first semi-circular ring 81 and the second semi-circular ring 82 can be adjusted, thus adjusting the inner diameter of the ring component 8. The inner diameter of the inner circumferential wall of the ring component 8 can be adjusted. A small gap can be left between the ring component 8 and the sliding rod component 22, or the ring component 8 and the sliding rod component 22 can be in direct contact. A small gap can be left between the ring component 8 and the sliding rod component 22, and concrete can be filled into the small gap left between the ring component 8 and the sliding rod component 22.

[0050] The protrusion 821 is inserted into the socket 811. The mating distance between the first semi-circular ring 81 and the second semi-circular ring 82 can be finely adjusted. After the mating distance between the first semi-circular ring 81 and the second semi-circular ring 82 is adjusted, the welding of the welding body 10 in the welding hole 812 melts and connects the first semi-circular ring 81 and the protrusion 821.

[0051] Example 2

[0052] Based on Example 1, the heat-conducting strip 9 is made of aluminum, which has a thermal conductivity of 217.7. Thermal expansion and contraction are inherent properties of aluminum, and aluminum can also effectively solve the heat dissipation problem. The heat-conducting strip 9 transfers heat energy to the concrete structure 6, and the concrete structure 6 dissipates heat. The heat-conducting strip 9 is durable and reliable. When heated from 30°C to 140-150°C, the elongation of the heat-conducting strip 9 is 2.5-3.0%. The specific elongation length of the heat-conducting strip 9 can be determined according to the actual heating conditions.

[0053] Example 3

[0054] Based on Example 1, such as Figure 1 , 3 As shown in Figure 4, Figure 3 Screw 2 and Figure 4 The assembly of the collar assembly 4 is as follows: first, the middle position of the screw 2 is machined into a sliding rod component 22; then, the assembled collar assembly 4 is fitted onto the outer peripheral wall of the sliding rod component 22; then, the limiting ring 7 is fitted onto the left and right ends of the sliding rod component 22; the limiting ring 7 is welded to the outer peripheral wall of the screw 2; and external threads 21 are machined on the left and right sides of the screw 2. The screw 2 and the collar assembly 4 are then combined into a single structure.

[0055] Example 4

[0056] Based on Example 1, such as Figure 6 As shown, this embodiment provides a construction method for a load-bearing device for hydraulic climbing formwork, including the following steps:

[0057] Step 1): Embed the bearing device with the collar assembly 4 inside the concrete structure 6;

[0058] Step 2): The bearing device is heated. After the collar assembly 4 is heated, the entire collar assembly 4 elongates in the axial direction.

[0059] Step 3): Perform compaction work on the concrete structure 6 to ensure that the entire load-bearing device is in close contact with the concrete structure 6, wherein the concrete inside the concrete structure 6 flows into the gap between the two adjacent ring components 8.

[0060] Step 4): Stop heating the bearing device and allow it to cool slowly to room temperature. At the same time, the entire collar assembly 4 contracts in the axial direction, and the concrete flowing into the gap between the two adjacent ring components 8 is further compacted.

[0061] Step 5): Perform compaction work on the concrete structure 6 to ensure that the entire load-bearing device is in close contact with the concrete structure 6, and wait for the concrete structure 6 to solidify.

[0062] In step 2), the entire collar assembly 4 elongates in the axial direction, increasing the distance between two adjacent ring members 8, which facilitates the flow of concrete from the concrete structure 6 into the gap between the two adjacent ring members 8.

[0063] In step 3), the concrete structure 6 is compacted to make the entire load-bearing device in close contact with the concrete structure 6. The concrete in the concrete structure 6 flows into the gap between the two adjacent ring members 8 through the compaction of the concrete. The concrete between the two adjacent ring members 8 is compacted, and the gap between the two adjacent ring members 8 is filled with compacted concrete.

[0064] In step 4), the bearing device is slowly cooled to room temperature, and the entire collar assembly 4 shrinks in the axial direction. The concrete flowing into the gap between the two adjacent ring members 8 is compacted a second time after the first compaction. The concrete between the two adjacent ring members 8 is compacted twice, which improves the tight connection between the collar assembly 4 and the concrete structure 6, and the connection between the entire bearing device and the concrete structure 6 is stable.

[0065] Step 5): As the collar assembly 4 shrinks in the axial direction, there is a gap between the collar assembly 4 and the limiting ring 7. The concrete structure 6 is then compacted to ensure that the entire bearing device is in close contact with the concrete structure 6. This prevents voids between the bearing device and the concrete structure 6 from affecting the structural performance of the entire concrete structure 6. After the concrete structure 6 has solidified, the entire bearing device is fixed on the concrete structure 6.

[0066] Example 5

[0067] Based on embodiments 1 and 5, the present invention utilizes the heating and cooling of the collar assembly 4 to achieve the elongation and contraction of the collar assembly 4 in the axial direction. When the entire collar assembly 4 elongates, the distance between the two adjacent ring members 8 increases, and the concrete in the concrete structure 6 flows into the gap between the two adjacent ring members 8 through the compaction of the concrete. When the entire collar assembly 4 contracts, the distance between the two adjacent ring members 8 decreases, and the concrete between the two adjacent ring members 8 is compacted. The collar assembly 4 on the bearing device has a tight contact with the concrete structure 6, which improves the tight connection between the collar assembly 4 of the bearing device and the concrete structure 6. After the secondary compaction operation on the concrete structure 6, the connection between the entire bearing device and the concrete structure 6 is stable.

[0068] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A load-bearing device for hydraulic climbing formwork, characterized in that, include: Connector sleeve (1); The screw (2) is fitted with the connector sleeve (1) on the outer circumferential wall of one side of the screw (2), and the screw (2) and the connector sleeve (1) are connected by threads; An embedded seat (3) is sleeved on the outer circumferential wall on the other side of the screw (2), and the embedded seat (3) is connected to the screw (2) by a thread; The collar assembly (4) is sleeved on the slide member (22) at the middle position of the screw (2) and located between two limiting rings (7). The collar assembly (4) can move axially along the slide member (22). The collar assembly (4) includes a plurality of annular members (8) arranged in an array along the axis. The collar assembly (4) can extend and contract in the axial direction by heating and cooling the collar assembly (4). The annular component (8) includes a first semi-circular ring (81) and a second semi-circular ring (82), the first semi-circular ring (81) and the second semi-circular ring (82) are connected to each other, and the inner peripheral wall of the first semi-circular ring (81) and the inner peripheral wall of the second semi-circular ring (82) are in contact with the outer peripheral wall of the screw (2).

2. The bearing device for hydraulic climbing formwork according to claim 1, characterized in that, The collar assembly (4) further includes heat-conducting strips (9), which are connected to two adjacent ring members (8). There are multiple heat-conducting strips (9), which are arranged in an array along the circumferential direction of the collar assembly (4).

3. A bearing device for hydraulic climbing formwork according to claim 2, characterized in that, The ring component (8) is made of stainless steel, and the heat-conducting strip (9) is made of aluminum. The ring component (8) and the heat-conducting strip (9) are welded together.

4. A bearing device for hydraulic climbing formwork according to claim 1, characterized in that, The first semicircular ring (81) has a socket (811) on its end face facing the second semicircular ring (82), and the second semicircular ring (82) has a protrusion (821) on its end face facing the first semicircular ring (81), and the protrusion (821) is inserted into the socket (811).

5. A bearing device for hydraulic climbing formwork according to claim 4, characterized in that, The inner circumferential wall of the first semi-circular ring (81) has a welding hole (812) for placing the welding body (10), the welding hole (812) leads into the socket (811), and the welding body (10) is connected to the first semi-circular ring (81) and the protrusion (821).

6. A bearing device for hydraulic climbing formwork according to claim 4, characterized in that, The size of the protrusion (821) is adapted to the size of the socket (811). In the longitudinal direction of the first semicircular ring (81) and the second semicircular ring (82), the longitudinal section of the protrusion (821) and the socket (811) is rectangular.

7. A bearing device for hydraulic climbing formwork according to claim 1, characterized in that, The screw (2) has external threads (21) on both sides, and the connector sleeve (1) and the embedded seat (3) have internal threads (11) respectively. The external threads (21) of the screw (2) are adapted to the internal threads (11) of the connector sleeve (1) and the internal threads (11) of the embedded seat (3). The connector sleeve (1), screw (2) and embedded seat (3) are made of metal materials. The limiting ring (7) is provided between the slide rod component (22) and the external threads (21).

8. A bearing device for hydraulic climbing formwork according to claim 7, characterized in that, The length of the collar assembly (4) in the axial direction is smaller than the distance between the two limiting rings (7).

9. A construction method for a load-bearing device for hydraulic climbing formwork, comprising the load-bearing device for hydraulic climbing formwork as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1): The bearing device with the collar assembly (4) is pre-embedded in the concrete structure (6); Step 2): The bearing device is heated. After the collar assembly (4) is heated, the entire collar assembly (4) elongates in the axial direction. Step 3): Compact the concrete structure (6) to make the entire load-bearing device in close contact with the concrete structure (6), wherein the concrete in the concrete structure (6) flows into the gap between the two adjacent ring members (8). Step 4): Stop heating the bearing device and allow it to cool slowly to room temperature. At the same time, the entire collar assembly (4) shrinks in the axial direction, and the concrete flowing into the gap between the two adjacent ring components (8) is further compacted. Step 5): Perform compaction work on the concrete structure (6) to ensure that the entire load-bearing device is in close contact with the concrete structure (6) and wait for the concrete structure (6) to solidify.

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