High-strength bolt unloading device and construction method thereof

Abstract

The application relates to a high-strength bolt unloading device and a construction method thereof. The high-strength bolt unloading device comprises a support assembly, the top end of the support assembly is fixedly connected with a base, the top end of the base is adjustably connected with a sliding support plate, the top end of the sliding support plate abuts against an unloading structure, the included angle between the top end surface of the sliding support plate and a horizontal plane is alpha, the shortest distance between a first connecting end and the bottom plate is L, the high-strength bolt releases bolt fastening axial force to reduce the bolt group anti-sliding carrying capacity, when the load borne by the temporary support exceeds the bolt group anti-sliding carrying capacity, the structure starts to sink, and unloading is gradually realized. The high-strength bolt unloading device has the advantages of improving the one-time unloading success rate, improving the precision of unloading, facilitating disassembly and assembly, reducing the cost and the like.

Description

Technical Field

[0001] This invention relates to the field of building unloading technology, and in particular to a high-strength bolt unloading device and its construction method. Background Technology

[0002] Currently, jacks are commonly used in construction projects, especially for steel structures, to support points requiring unloading. However, to ensure reliability during force conversion and safety during unloading operations, the process must be slow and secure. Jacks are difficult to control in terms of the degree of unloading, and purchasing or renting multiple jacks can be costly for situations requiring unloading at multiple points. Therefore, measures are needed to address these issues.

[0003] Jacks are usually used for support. However, it is difficult to control the degree of unloading with jacks. Furthermore, for work conditions where there are multiple points that need to be unloaded, the cost of purchasing or renting a large number of jacks is high.

[0004] To address these issues, we developed a high-strength bolt unloading device. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art by providing a high-strength bolt unloading device, which has the advantages of improving the success rate of one-time unloading, improving the accuracy of unloading, facilitating disassembly and assembly, and reducing costs.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a construction method for a high-strength bolt unloading device, comprising the following steps:

[0007] S10. Overlapping support assembly, wherein the top of the support assembly is provided with a load-bearing structure, and the height of the support assembly is set according to the height of the load-bearing point of the load-bearing structure.

[0008] S20. A base is fixedly installed at the top of the bracket assembly. The top of the base is adjustablely connected to a sliding support plate by a plurality of high-strength bolts. The top of the sliding support plate abuts against the unloading point of the unloading structure.

[0009] S30. When the unloading structure is in a horizontal position, the top end of the sliding support plate is parallel to the top end of the base. When the unloading structure is in an inclined position, the maximum angle between the top end of the sliding support plate and the top end of the base is 10°.

[0010] S40. Adjust the high-strength bolts to gradually release the load on the unloading structure and record the result. When the load is zero, retract the unloading device.

[0011] S50. When unloading is required at the site, install and use an unloading device and repeat the above steps.

[0012] Preferably, in step S20, the angle between the top surface of the sliding plate and the horizontal plane is α, and the range of the angle α is 0°≤α≤10°.

[0013] Preferably, a high-strength bolt unloading device includes a support assembly, the top of which is fixedly connected to a base, and the top of which is adjustablely connected to a sliding support plate, the top of which abuts against an unloading structure.

[0014] Preferably, the sliding support plate is provided with a first connecting end, the first connecting end is provided with evenly distributed elongated holes, and the elongated holes are adjustablely connected to the base by high-strength bolts.

[0015] Preferably, the base is provided with a bottom plate, and the shortest distance between the first connecting end and the bottom plate is L, wherein the distance L is in the range of 0≤L≤15mm.

[0016] Preferably, the top of the base is provided with a second connecting end, the second connecting end is provided with evenly distributed circular holes, and the circular holes and the elongated holes are adjustablely connected by high-strength bolts.

[0017] Preferably, the top of the sliding support plate is provided with an abutment plate, and the top of the abutment plate is provided with an anti-slip layer.

[0018] Preferably, the support assembly includes a first upright and a second upright, with a horizontal bar and a diagonal bar fixedly connected between the first upright and the second upright, and the first upright, the second upright, and the bottom end of the base plate are fixedly connected by positioning components.

[0019] Preferably, the base plate is provided with a third connecting end, and the first upright and the second upright are respectively fixedly connected to the third connecting end by diagonal bracing.

[0020] Preferably, a first connecting plate is provided at the middle position of the first upright, and the first connecting plate is provided with a plurality of first connecting holes; a second connecting plate is provided at the middle position of the second upright, and the second connecting plate is provided with a plurality of second connecting holes; the crossbar is fixedly connected between the first connecting holes and the second connecting holes; and the diagonal bar is connected between the first upright and the second connecting holes.

[0021] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] The high-strength bolt unloading device of the present invention is safe, convenient, slow and reliable in the unloading process. The presence of the elongated hole ensures the success of the first unloading. The gap L between the bottom of the sliding plate and the top base of the support frame provides convenience for the second unloading. The two-stage unloading allows for more precise control of the unloading process. The unloading device is easy to assemble and disassemble, improves turnover, and reduces costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the high-strength bolt unloading device described in this invention.

[0024] Figure 2 This is a schematic diagram of the connection between the base and the sliding support plate described in this invention. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 and Figure 2 In the present invention, a high-strength bolt unloading device includes a bracket assembly 30, the top end of the bracket assembly 30 is fixedly connected to a base 20, the top end of the base 20 is adjustablely connected to a sliding support plate 10 by a high-strength bolt 40, and the top end of the sliding support plate 10 abuts against the unloading structure 100.

[0027] The sliding support plate 10 has an abutment plate 11 at its top end and a first connecting end 12. The first connecting end 12 has evenly distributed elongated holes 121, which are adjustablely connected to the base 20 via high-strength bolts 40. The abutment plate 11 has an anti-slip layer 111 at its top end. The anti-slip layer 111 may have a raised dot structure, a mesh structure, or a fine stripe structure.

[0028] The base 20 has a second connecting end 21 at its top and a base plate 22. The shortest distance between the first connecting end 12 and the base plate 22 is L, and the range of distance L is 0 ≤ L ≤ 15 mm. The angle between the top surface of the sliding support plate 10 and the horizontal plane is α, and the range of angle α is 0° ≤ α ≤ 10°. When α = 0°, L = 15 mm; when α = 10°, L = 0 mm. The sliding support plate 10 unloads the load at the unloading point in the horizontal position, or unloads the inclined plane at an angle of 10° to the horizontal plane. The second connecting end 21 has evenly distributed circular holes 211, and the circular holes 211 and the oblong holes 121 are adjustablely connected by high-strength bolts 40.

[0029] To improve the support strength of the support frame, a third connecting end 221 is provided at the middle of one side of the base plate 22 along its length. The support assembly 30 includes a first upright 31 and a second upright 32, with a horizontal bar 35 and a diagonal bar 36 fixedly connected between the first upright 31 and the second upright 32. The first upright 31 and the second upright 32 are fixedly connected to the bottom end of the base plate 22 by positioning members 39. The first upright 31 and the second upright 32 are respectively fixedly connected to the third connecting end 221 by diagonal braces 33. The horizontal bar 35 is located at the middle position of the support assembly 30, with diagonal braces 33 symmetrically provided on the upper side of the horizontal bar 35 and diagonal bars 36 provided on the lower side. A first connecting plate 311 is provided at the middle position of the first upright 31, and the first connecting plate 311 has multiple first connecting holes 312. A second connecting plate 321 is provided at the middle position of the second upright 32, and the second connecting plate 321 has multiple second connecting holes 322. A horizontal bar 35 is fixedly connected between the first connecting hole 312 and the second connecting hole 322, and a diagonal bar 36 is connected between the first vertical bar 31 and the second connecting hole 322.

[0030] A high-strength bolt unloading device, applied to a construction method for a high-strength bolt unloading device, comprising the following steps:

[0031] S10. Overlap the support assembly 30, and fix the horizontal bar 35, the diagonal bar 36 and the diagonal brace 33 between the first upright 31 and the second upright 32 respectively. The top of the support assembly 30 is provided with a load-bearing structure 100. The height of the support assembly 30 is set according to the height of the load-bearing point of the load-bearing structure 100.

[0032] S20. A base 20 is fixedly mounted at the top of the support assembly. The second connecting end 21 at the top of the base 20 has evenly distributed circular holes 211. The first connecting end 12 at the bottom of the sliding support plate 10 has evenly distributed elongated holes 121. The circular holes 211 of the base 20 are vertically adjusted and connected to the elongated holes 121 of the sliding support plate 10 via multiple high-strength bolts 40. The top of the sliding support plate 10 abuts against the unloading point of the unloading structure 100. The angle between the top surface of the sliding support plate 10 and the horizontal plane is α, with an angle α ranging from 0° to 10°. The shortest distance between the first connecting end 12 and the base plate 22 is L, ranging from 0 to 15 mm. When α = 0°, L = 15 mm; when α = 10°, L = 0 mm. Adjusting the high-strength bolts 40 allows the first connecting end 12 to rotate within the second connecting end 21.

[0033] S30. When the unloading structure 100 is in a horizontal position, the top end of the sliding support plate 10 is parallel to the top end of the base 20. When the unloading structure 100 is in an inclined position, the maximum angle between the top end of the sliding support plate 10 and the top end of the base 20 is 10°.

[0034] S40. Adjust the high-strength bolt 40 to gradually release the load on the unloading structure 100 and record it. When the load is zero, retract the unloading device.

[0035] S50. When unloading is required at the site, install and use an unloading device and repeat the above steps.

[0036] The high-strength bolt unloading device includes an unloading structure 100, a sliding support plate 10, high-strength bolts 40, a base 20, and a support assembly 30. The unloading structure 100 is primarily a steel or concrete structure. The sliding support plate 10 supports the structure to be unloaded. The sliding support plate 10 has an elongated hole 121, and the base 20 has a circular hole. The positions of the elongated hole in the sliding support plate 10 and the circular hole in the base 20 correspond, and they are connected by large hexagonal high-strength bolts 40. The support assembly 30 consists of two end uprights, internal V-shaped diagonal braces 33, internal crossbars 35, and a lower diagonal brace 36. The upper connector of the V-shaped brace is connected to the lower middle position of the base 20. The unloading principle of the high-strength bolts 40 is to reduce the anti-slip bearing capacity of the bolt group by releasing the bolt tightening axial force. When the load borne by the temporary support exceeds the anti-slip bearing capacity of the bolt group, the structure begins to sink, gradually achieving unloading.

[0037] The above are merely specific application examples of the present invention and do not constitute any limitation on the scope of protection of the present invention. All technical solutions formed by equivalent transformations or substitutions fall within the scope of protection of the present invention.

Claims

1. A construction method of a high-strength bolt unloading device, characterized by, It comprises the following steps: S10. The high-strength bolt unloading device comprises a support assembly (30), the top end of the support assembly (30) is fixedly connected with a base (20), the top end of the base (20) is adjustably connected with a sliding support plate (10), and the top end of the sliding support plate (10) abuts against an unloading structure (100); the support assembly (30) is overlapped, the top end of the support assembly (30) is provided with the unloading structure (100), the height of the support assembly (30) is set according to the height of the unloading point of the unloading structure (100); the sliding support plate (10) is provided with a first connecting end (12), the first connecting end (12) is provided with uniformly distributed long circular holes (121), the long circular holes (121) are adjustably connected with the base (20) through high-strength bolts (40), the base (20) is provided with a bottom plate (22), the shortest distance between the first connecting end (12) and the bottom plate (22) is L, and the distance L ranges from 0 to 15 mm. S20. The top end of the support assembly (30) is fixedly installed with the base (20), the top end of the base (20) is adjustably connected with the sliding support plate (10) through a plurality of high-strength bolts (40), and the top end of the sliding support plate (10) abuts against the unloading point of the unloading structure (100); the included angle between the top end face of the sliding support plate (10) and the horizontal plane is α, and the included angle α ranges from 0° to 10°. S30. When the unloading structure (100) is in a horizontal position, the top end of the sliding support plate (10) is parallel to the top end of the base (20); when the unloading structure (100) is in an inclined position, the maximum included angle between the top end of the sliding support plate (10) and the top end of the base (20) is 10°. S40. The high-strength bolts (40) are adjusted, the load of the unloading structure (100) is released, and the unloading device is collected when the load is zero. S50. When there is a need to unload in the field, the unloading device is installed and used, and the above steps are repeated.

2. The construction method of the high-strength bolt unloading device according to claim 1, characterized by, The top end of the base (20) is provided with a second connecting end (21), the second connecting end (21) is provided with uniformly distributed circular holes (211), and the circular holes (211) are adjustably connected with the long circular holes (121) through high-strength bolts (40).

3. The construction method of the high-strength bolt unloading device according to claim 1, characterized by, The top end of the sliding support plate (10) is provided with an abutting plate (11), and the top end of the abutting plate (11) is provided with an anti-skid layer (111).

4. The construction method of the high-strength bolt unloading device according to claim 2, characterized by, The support assembly (30) comprises a first vertical rod (31) and a second vertical rod (32), the first vertical rod (31) and the second vertical rod (32) are fixedly connected with a horizontal rod (35) and an inclined rod (36), and the first vertical rod (31), the second vertical rod (32) and the bottom end of the bottom plate (22) are fixedly connected through a positioning piece (39).

5. The construction method of the high-strength bolt unloading device according to claim 4, characterized by, The bottom plate (22) is provided with a third connecting end (221), and the first vertical rod (31) and the second vertical rod (32) are fixedly connected with the third connecting end (221) through inclined struts (33).

6. The construction method of the high-strength bolt unloading device according to claim 4, characterized by, The first vertical rod (31) is provided with a first connecting plate (311) at the middle position, the first connecting plate (311) is provided with a plurality of first connecting holes (312), the second vertical rod (32) is provided with a second connecting plate (321) at the middle position, the second connecting plate (321) is provided with a plurality of second connecting holes (322), the first connecting hole (312) and the second connecting hole (322) are fixedly connected with the cross rod (35), and the first vertical rod (31) is connected with the second connecting hole (322).

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