Self-stress compensation type super-long concrete anti-crack supporting device

Abstract

The utility model discloses a self-stress compensation type ultra-long concrete anti-crack supporting device, and belongs to the technical field of supporting devices, the self-stress compensation type ultra-long concrete anti-crack supporting device comprises a bottom plate, and an H-shaped steel frame is arranged above the bottom plate; the fixing cylinders and the telescopic rods are arranged to form the telescopic supporting legs, the two telescopic supporting legs form a main body supporting system, the main body supporting system is matched with the rigid supporting characteristic of the H-shaped steel frame to effectively disperse the load during concrete pouring, the supporting mechanisms are arranged, and therefore the telescopic rods can synchronously support the two sides of the H-shaped steel frame, and the concrete pouring efficiency is improved. The two telescopic rods are fixedly connected together through the cross beam to form a whole, so that the hydraulic jacking mechanism drives the cross beam to achieve height adjustment of the main body supporting system, accurate control is achieved, stress uniformity is guaranteed, and the stability of the supporting system is improved. And the situation that self-stress distribution in the structure is changed due to uneven stress before the concrete structure is not completely hardened is avoided, the construction quality is ensured, and cracks are prevented.

Description

Technical Field

[0001] This application relates to the field of support device technology, and in particular to a self-stress-compensating ultra-long concrete crack-resistant support device. Background Technology

[0002] In the field of building structural engineering, crack control in large-volume concrete foundations has long been a technical challenge. Because concrete undergoes significant temperature and shrinkage stresses during hardening, it deforms, making the foundation structure prone to cracking. To ensure construction quality during concrete pouring, support devices are typically installed at the bottom of the concrete structure to prevent deformation during hardening.

[0003] The published patent document CN213449478U discloses a large-volume reinforced concrete support device. This patent document supports the concrete structure to be poured by means of cooperation between the support mechanism and the load-bearing mechanism to ensure construction quality. However, the above device uses two independent support mechanisms to provide support force, which is prone to errors. The unbalanced support force can cause local deformation of the support system, causing uneven shrinkage or displacement of the concrete before it is fully hardened. This deformation may change the internal stress distribution of the structure, thus causing cracks. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a self-stress-compensating ultra-long concrete crack-resistant support device, which overcomes the shortcomings of the prior art and aims to solve the problems in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: a self-stress-compensating ultra-long concrete crack-resistant support device, comprising a base plate, an H-shaped steel frame disposed above the base plate, the base plate and the H-shaped steel frame being fixedly connected by two telescopic support legs, each telescopic support leg comprising a fixed cylinder fixedly installed on the top of the base plate, a telescopic rod slidably inserted inside the fixed cylinder, the top of the telescopic rod being fixedly connected to the bottom of the H-shaped steel frame, and a support mechanism being disposed between the telescopic rod and the H-shaped steel frame, a crossbeam being fixedly connected between the two telescopic rods, and a hydraulic jacking mechanism being fixedly installed on the top of the base plate, the upper end of the hydraulic jacking mechanism being fixedly connected to the bottom of the crossbeam.

[0006] By adopting the above technical solution, a telescopic support leg is formed by setting a fixed cylinder and a telescopic rod. The two telescopic support legs form the main support system, which, together with the rigid support characteristics of the H-shaped steel frame, effectively disperses the load during concrete pouring. By setting a support mechanism, the telescopic rod can simultaneously support both sides of the H-shaped steel frame, enhancing the stability of the support system. The two telescopic rods are fixedly connected together by a crossbeam to form a whole, so that the height of the main support system can be adjusted by driving the crossbeam through a hydraulic jacking mechanism. This allows for precise control, ensures uniform stress distribution, and prevents the internal stress distribution of the concrete structure from changing due to uneven stress before it is fully hardened, thus ensuring construction quality and preventing cracks.

[0007] As a preferred technical solution of this application, the H-shaped steel frame includes two H-shaped steel plates fixedly connected to the top of the telescopic rod, and a flat plate is fixedly connected to the top of the H-shaped steel plates, and an elastic rubber pad is fixedly connected to the top of the flat plate.

[0008] By adopting the above technical solution, a flat bearing surface is formed by welding the flat plate and H-shaped steel plate, ensuring uniform load distribution. This design can effectively reduce local stress concentration. The elastic rubber pad is installed on the top of the flat plate as a contact layer, which absorbs the impact of dynamic load through material deformation and can also compensate for minor unevenness of the contact surface.

[0009] As a preferred technical solution of this application, the number of the support mechanisms is four, and they are symmetrically distributed in pairs on both sides of the telescopic rod, and the two telescopic rods are symmetrically distributed on both sides of the hydraulic lifting mechanism.

[0010] By adopting the above technical solution, the two sides of the H-shaped steel frame are synchronously supported through the cooperation between the support mechanism and the telescopic rod, thereby enhancing the stability of the support system. The hydraulic lifting mechanism is set between the two telescopic rods to balance the support force.

[0011] As a preferred technical solution of this application, the support mechanism includes a first connecting seat and a second connecting seat. The first connecting seat is fixedly installed on the side wall of the telescopic rod, and the second connecting seat is fixedly installed on the top of the H-shaped steel plate. A support rod is fixedly connected between the first connecting seat and the second connecting seat.

[0012] By adopting the above technical solution, the telescopic rod and the H-shaped steel plate are fixedly connected together to form a whole through the cooperation between connecting seat one, connecting seat two and support rod.

[0013] As a preferred technical solution of this application, an anti-detachment block is fixedly connected to the bottom of the telescopic rod. The anti-detachment block slides up and down inside the fixed cylinder, and the diameter of the anti-detachment block is larger than the diameter of the telescopic rod.

[0014] By adopting the above technical solution and setting anti-detachment blocks, the telescopic rod is prevented from detaching from the inside of the fixed cylinder.

[0015] As a preferred technical solution of this application, the outer walls of the two sides of the base plate are symmetrically connected with a number of positioning blocks evenly distributed along their length direction, and the positioning blocks are provided with through holes for inserting ground nails.

[0016] By adopting the above technical solution, the base plate is fixed to the ground by inserting ground nails inside the positioning block, ensuring that the base plate will not shift during operation.

[0017] As a preferred technical solution of this application, connectors are symmetrically installed on both sides of the upper surface of the base plate, and adjacent base plates are fixedly connected by connectors and bolts.

[0018] By adopting the above technical solution, the connecting parts on two adjacent base plates are fixed together by bolts, thereby fixing multiple base plates together to suit ultra-long concrete structures of different specifications.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In this invention, a telescopic support leg is formed by setting a fixed cylinder and a telescopic rod. The two telescopic support legs form the main support system, which, together with the rigid support characteristics of the H-shaped steel frame, effectively disperses the load during concrete pouring. By setting a support mechanism, the telescopic rod can simultaneously support both sides of the H-shaped steel frame, enhancing the stability of the support system. The two telescopic rods are fixedly connected together by a crossbeam to form a whole, so that the height of the main support system can be adjusted by driving the crossbeam through a hydraulic jacking mechanism. This allows for precise control, ensures uniform stress distribution, and prevents the internal stress distribution of the concrete structure from changing due to uneven stress before it is fully hardened, thus ensuring construction quality and preventing cracks.

[0021] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereto. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this application;

[0024] Figure 2 This is a schematic diagram of the composition of the H-beam steel frame of this application;

[0025] Figure 3 This is a partial structural diagram of this application;

[0026] Figure 4 For the purposes of this application Figure 3 An enlarged schematic diagram of the structure at point A.

[0027] In the diagram: 1. Base plate; 2. Fixed cylinder; 3. Telescopic rod; 4. Crossbeam; 5. Hydraulic jacking mechanism; 6. H-beam steel frame; 61. H-beam steel plate; 62. Flat plate; 63. Elastic rubber pad; 7. Support mechanism; 71. Connecting seat one; 72. Connecting seat two; 73. Support rod; 8. Anti-detachment block; 9. Connecting piece; 10. Positioning block. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] like Figure 1 - Figure 4 As shown in the figure, this embodiment provides a self-stress-compensating ultra-long concrete crack-resistant support device, including a base plate 1, an H-shaped steel frame 6 above the base plate 1, and a fixed connection between the base plate 1 and the H-shaped steel frame 6 via two telescopic support legs. Each telescopic support leg includes a fixed cylinder 2 fixedly installed on the top of the base plate 1, with a telescopic rod 3 slidably inserted inside the fixed cylinder 2. The top of the telescopic rod 3 is fixedly connected to the bottom of the H-shaped steel frame 6, and a support mechanism 7 is provided between the telescopic rod 3 and the H-shaped steel frame 6. A crossbeam 4 is fixedly connected between the two telescopic rods 3. A hydraulic jacking mechanism 5 is fixedly installed on the top of the base plate 1, and the upper end of the hydraulic jacking mechanism 5 is fixedly connected to the bottom of the crossbeam 4. In use, by setting the fixed cylinder... The telescopic support legs, consisting of two telescopic support legs and telescopic rods 3, work together with the rigid support characteristics of the H-shaped steel frame 6 to effectively distribute the load during concrete pouring. By setting up the support mechanism 7, the telescopic rods 3 can provide synchronous support to both sides of the H-shaped steel frame 6, enhancing the stability of the support system. The two telescopic rods 3 are fixedly connected together by the crossbeam 4 to form a whole, so that the height of the main support system can be adjusted by driving the crossbeam 4 through the hydraulic jacking mechanism 5. This allows for precise control, ensures uniform stress distribution, and prevents the internal stress distribution of the concrete structure from changing due to uneven stress before it is fully hardened, thus ensuring construction quality and preventing cracks.

[0030] In this embodiment, as Figure 2As shown, the H-shaped steel frame 6 includes two H-shaped steel plates 61 fixedly connected to the top of the telescopic rod 3. A flat plate 62 is fixedly connected to the top of the H-shaped steel plate 61, and an elastic rubber pad 63 is fixedly connected to the top of the flat plate 62. In use, the flat plate 62 is welded to the H-shaped steel plate 61 to form a flat bearing surface, ensuring uniform load distribution. This design can effectively reduce local stress concentration. The elastic rubber pad 63 is installed on the top of the flat plate 62 as a contact layer. It absorbs the impact of dynamic load through material deformation and can also compensate for minor unevenness of the contact surface.

[0031] In this embodiment, as Figure 1 and 3 As shown, there are four support mechanisms 7, which are symmetrically distributed in pairs on both sides of the telescopic rod 3. Two telescopic rods 3 are symmetrically distributed on both sides of the hydraulic lifting mechanism 5. In use, the support mechanisms 7 and the telescopic rods 3 work together to provide synchronous support to both sides of the H-shaped steel frame 6, thereby enhancing the stability of the support system. The hydraulic lifting mechanism 5 is set between the two telescopic rods 3 to balance the support force.

[0032] In this embodiment, as Figure 3 As shown, the support mechanism 7 includes a first connecting seat 71 and a second connecting seat 72. The first connecting seat 71 is fixedly installed on the side wall of the telescopic rod 3, and the second connecting seat 72 is fixedly installed on the top of the H-shaped steel plate 61. A support rod 73 is fixedly connected between the first connecting seat 71 and the second connecting seat 72. In use, the telescopic rod 3 and the H-shaped steel plate 61 are fixedly connected together to form a whole through the cooperation between the first connecting seat 71, the second connecting seat 72 and the support rod 73.

[0033] In this embodiment, as Figure 4 As shown, an anti-detachment block 8 is fixedly connected to the bottom of the telescopic rod 3. The anti-detachment block 8 slides up and down inside the fixed cylinder 2, and the diameter of the anti-detachment block 8 is larger than the diameter of the telescopic rod 3. In use, by setting the anti-detachment block 8, the telescopic rod 3 is prevented from detaching from the inside of the fixed cylinder 2.

[0034] In this embodiment, as Figure 1 As shown, several positioning blocks 10 are symmetrically connected to the outer walls of both sides of the base plate 1 and are evenly distributed along its length. The positioning blocks 10 have through holes for inserting ground nails. In use, the base plate 1 is fixed to the ground by inserting ground nails into the positioning blocks 10, ensuring that the base plate 1 will not shift its position during operation.

[0035] In this embodiment, as Figure 1As shown, connectors 9 are symmetrically installed on both sides of the upper surface of the base plate 1. Adjacent base plates 1 are fixedly connected by connectors 9 and bolts. In use, the connectors 9 on adjacent base plates 1 are fixedly connected together by bolts, thereby fixing multiple base plates 1 together to suit ultra-long concrete structures of different specifications.

[0036] The working principle of this utility model is as follows: When using the self-stress-compensating ultra-long concrete crack-resistant support device of this application, a telescopic support leg is formed by setting a fixed cylinder 2 and a telescopic rod 3. The two telescopic support legs form the main support system, which, together with the rigid support characteristics of the H-shaped steel frame 6, effectively disperses the load during concrete pouring. By setting a support mechanism 7, the telescopic rod 3 can provide synchronous support to both sides of the H-shaped steel frame 6, enhancing the stability of the support system. The two telescopic rods 3 are fixedly connected together by a crossbeam 4 to form a whole, so that the height of the main support system can be adjusted by driving the crossbeam 4 through the hydraulic jacking mechanism 5. This allows for precise control, ensures uniform stress distribution, and prevents the internal stress distribution of the concrete structure from changing due to uneven stress before it is fully hardened, thus ensuring construction quality and preventing cracks.

[0037] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The present invention has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present invention. Those skilled in the art can make various modifications and variations to the present invention based on its spirit and principles, and these modifications and variations are also within the scope of the present invention.

Claims

1. A self-stress-compensating ultra-long concrete crack-resistant support device, comprising a base plate (1), characterized in that, An H-shaped steel frame (6) is provided above the base plate (1). The base plate (1) and the H-shaped steel frame (6) are fixedly connected by two telescopic support legs. The telescopic support legs include a fixed cylinder (2) fixedly installed on the top of the base plate (1). A telescopic rod (3) is slidably inserted into the inside of the fixed cylinder (2). The top of the telescopic rod (3) is fixedly connected to the bottom of the H-shaped steel frame (6). A support mechanism (7) is provided between the telescopic rod (3) and the H-shaped steel frame (6). A crossbeam (4) is fixedly connected between the two telescopic rods (3). A hydraulic lifting mechanism (5) is fixedly installed on the top of the base plate (1). The upper end of the hydraulic lifting mechanism (5) is fixedly connected to the bottom of the crossbeam (4).

2. The self-stress-compensating ultra-long concrete crack-resistant support device according to claim 1, characterized in that, The H-shaped steel frame (6) includes two H-shaped steel plates (61) fixedly connected to the top of the telescopic rod (3), and a flat plate (62) is fixedly connected to the top of the H-shaped steel plate (61), and an elastic rubber pad (63) is fixedly connected to the top of the flat plate (62).

3. The self-stress-compensating ultra-long concrete crack-resistant support device according to claim 2, characterized in that, The number of the support mechanisms (7) is four, and they are symmetrically distributed in pairs on both sides of the telescopic rod (3). The two telescopic rods (3) are symmetrically distributed on both sides of the hydraulic lifting mechanism (5).

4. The self-stress-compensating ultra-long concrete crack-resistant support device according to claim 1, characterized in that, The support mechanism (7) includes a first connecting seat (71) and a second connecting seat (72). The first connecting seat (71) is fixedly installed on the side wall of the telescopic rod (3), and the second connecting seat (72) is fixedly installed on the top of the H-shaped steel plate (61). A support rod (73) is fixedly connected between the first connecting seat (71) and the second connecting seat (72).

5. A self-stress-compensating ultra-long concrete crack-resistant support device according to claim 1, characterized in that, The bottom of the telescopic rod (3) is fixedly connected to an anti-detachment block (8). The anti-detachment block (8) slides up and down inside the fixed cylinder (2), and the diameter of the anti-detachment block (8) is larger than the diameter of the telescopic rod (3).

6. The self-stress-compensating ultra-long concrete crack-resistant support device according to claim 1, characterized in that, The outer walls of the base plate (1) are symmetrically connected with a number of positioning blocks (10) evenly distributed along its length. The positioning blocks (10) have through holes for inserting ground nails.

7. A self-stress-compensating ultra-long concrete crack-resistant support device according to claim 1, characterized in that, Connectors (9) are symmetrically installed on both sides of the upper surface of the base plate (1), and two adjacent base plates (1) are fixedly connected by connectors (9) and bolts.

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