Temperature stress releasing structure for super-long steel structure building

Abstract

The invention provides a temperature stress releasing structure for a super-long steel structure building, the super-long steel structure building comprises a frame structure formed by columns and beams, the temperature stress releasing structure comprises a sliding support assembly arranged between the columns and the beams in the length direction of the frame structure, one end of each beam is in sliding fit with the sliding support assembly, and the other end of each beam is in sliding fit with the sliding support assembly. The other end of the beam is connected with an adjacent steel column, and the sliding support assembly comprises a cylinder in sliding fit with the beam. The material can generate the phenomenon of thermal expansion and cold contraction when the temperature changes, at the high temperature, the material expands and shows tension force, the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes small, at the low temperature, the material shrinks and shows shrinkage force, and the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes large. The internal temperature stress of the material is remarkable, the temperature stress is directly released through the sliding support assembly, the effect is remarkable, more convenience is achieved, and additional operation is not needed.

Description

Technical Field

[0001] The invention belongs to the technical field of steel member sliding supports, in particular to a temperature stress release structure for an ultra-long steel structure building. Background Art

[0002] With the deepening of domestic energy transformation, electricity demand has shown a rapid growth trend. The development of the power industry is not only related to the security of energy supply, but also a key factor in promoting high-quality economic development. According to the power grid and urban development plan, in order to meet the power supply needs of urban economic construction, urban indoor 500kV substations have become a development trend.

[0003] Due to the production process requirements of electrical equipment, the steel structure of the city's fully indoor 500kV substation is more than 90 meters long, and the temperature deformation and temperature stress are significant. If they are not handled properly in the structural design, the structure will be cracked and damaged, seriously affecting the normal use of the building structure. In order to effectively eliminate the adverse effects of temperature stress, the conventional practice is to reserve temperature structural joints at appropriate locations in the building, such as Figure 1 As shown, all the building components above the ground, such as the roof, walls, and floors, are disconnected, and double columns are set on both sides of the gap. The construction workload increases, and the amount of steel used will also increase exponentially, resulting in a corresponding increase in cost.

[0004] For example, a Chinese invention patent with an authorization announcement date of 2023.04.28 and an authorization announcement number of CN114232798B discloses an ultra-long steel structure system that resists temperature deformation, including two side columns and a central column, and a crossbeam is connected between the central column and the two side columns, and bearing members for supporting the crossbeams on the same side are respectively provided on both sides of the central column; each crossbeam is hinged with a connecting rod at one end close to the central column, and the two connecting rods are hinged and cross-linked with each other, and two limit plates corresponding to the two connecting rods are provided at the top of the central column, and a limit shaft is provided at the end of each connecting rod away from the connected crossbeam, and a limit groove is provided on each limit plate, and each limit shaft is slidably embedded in the limit groove corresponding to the connecting rod.

[0005] The above-mentioned prior art can cope with temperature stress, but there are the following problems: 1. The structure of anti-temperature deformation is very complicated and cumbersome, and the production cost is very high; 2. There are many parts, which brings inconvenience to later maintenance; 3. It requires high knowledge reserves from construction workers and the installation is relatively complicated and difficult.

[0006] Therefore, how to effectively solve the above problems is a technical problem that needs to be solved urgently.

[0007] It should be particularly noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as admitting or implying in any form that the above technical information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0008] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a temperature stress release structure for super-long steel structure buildings, which solves the problems of complex and high cost of anti-temperature deformation structure, large construction workload, complex and difficult installation, and numerous parts causing inconvenience for later maintenance.

[0009] The technical solution of this application is: A temperature stress release structure for an extra-long steel structure building, the extra-long steel structure building includes a frame structure formed by columns and beams, the temperature stress release structure includes a sliding support assembly arranged between the columns and beams in the length direction of the frame structure, one end of the beam is slidably matched with the sliding support assembly, the other end of the beam is connected to an adjacent steel column, and the sliding support assembly includes a cylinder slidably matched with the beam. When the temperature changes, the material will produce thermal expansion and contraction. At high temperatures, the material expands, which manifests as an expansion force, and the spacing between the beam used for temperature stress release and the adjacent steel column becomes smaller. At low temperatures, the material shrinks, which manifests as a contraction force, and the spacing between the beam used for temperature stress release and the adjacent steel column becomes larger. Since the building structure is extra-long, the temperature stress inside the material is significant. The present invention releases the temperature stress directly through the sliding support assembly, which has a significant effect and is more convenient without the need for additional operations.

[0010] Furthermore, the length of the beam is smaller than the distance between opposite surfaces of adjacent steel columns.

[0011] Furthermore, a corbel is connected to the side of the steel column, and the sliding support assembly is arranged between the corbel and the beam.

[0012] Furthermore, the sliding support assembly includes a plurality of baffles arranged on the upper surface of the corbel, the cylinder is arranged in a cavity surrounded by the plurality of baffles, and the axis of the cylinder is parallel to the width direction of the beam.

[0013] Furthermore, in order to ensure that the sliding support has a good sliding ability, at least two cylinders are provided.

[0014] Furthermore, a pad is provided between the baffle and the upper surface of the corbel. The corbel needs to bear a large load pressure at the support node. Providing the pad can effectively disperse the pressure borne by the structure, reduce the impact and damage caused by the pressure, and thus improve safety.

[0015] Furthermore, in order to enhance the strength and rigidity of the connection portion of the sliding support assembly and prevent the sliding performance of the support assembly from being affected by deformation of the sliding support assembly under load, a plurality of stiffening ribs are provided between the baffle and the pad.

[0016] Furthermore, pad plate 2 and pad plate 3 are arranged in sequence between the cylinder and the beam, and pad plate 4 is arranged between the cylinder and pad plate 1.

[0017] Furthermore, a polytetrafluoroethylene plate is arranged between the pad three and the baffles arranged on the two end surfaces of the cylinder, and the two side surfaces of the polytetrafluoroethylene plate are respectively attached to the pad three and the baffle.

[0018] Furthermore, a gap is provided between the pad four and the steel column, which facilitates construction.

[0019] The specific beneficial effects of the present invention include: 1. The sliding support assembly in the present invention allows the deformation of the beam caused by temperature changes to be released freely without generating internal forces, thereby eliminating the adverse effects of temperature effects without affecting safety and aesthetics; 2. When the temperature changes, the material will produce thermal expansion and contraction. At high temperature, the material expands, which is manifested as an expansion force, and the distance between the beam used for temperature stress release and the adjacent steel column becomes smaller. At low temperature, the material shrinks, which is manifested as a contraction force, and the distance between the beam used for temperature stress release and the adjacent steel column becomes larger. Since the building structure is super long, the temperature stress inside the material is significant. The present invention releases the temperature stress directly through the sliding support assembly, which is effective and more convenient, and does not require additional operations; 3. Flexible node arrangement and fast construction speed can save 40t of steel compared with conventional solutions, with significant economic benefits; 4. When an earthquake occurs, the structure will be affected by horizontal seismic forces. The sliding bearing assembly can make the structure slide in the horizontal direction to a certain extent, thereby consuming seismic energy, reducing the seismic response of the structure, and reducing the damage caused by the earthquake to the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the prior art involved in the background technology of the present invention; Figure 2 It is a schematic diagram of the use state of the present invention; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 is a schematic diagram of a sliding support assembly; Figure 5 is a schematic diagram of a cylinder in a sliding support assembly; Figure 6 is a vertical section view of the sliding support assembly along the length of the building; Figure 7 is a vertical cross-sectional view of the sliding support assembly along the width direction of the building; Figure 8 It is a horizontal cross-section view of the sliding support assembly.

[0022] Description of Figure Numbers: 1. Sliding support assembly; 2. Steel column; 3. Beam; 4. Baffle; 6. Cylinder; 7. Corbel; 11. Pad 1; 12. Stiffening rib plate; 13. Pad 2; 14. Pad 3; 15. Pad 4; 16. Polytetrafluoroethylene sheet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0025] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "several" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial" and the like indicate positions or positional relationships only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0027] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0028] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the corresponding technologies, methods, and equipment should be considered part of the specification.

[0030] A temperature stress release structure for an extra-long steel structure building, the extra-long steel structure building includes a frame structure formed by columns 2 and beams 3, the temperature stress release structure includes a sliding support assembly 1 arranged between the columns 2 and the beams 3 in the length direction of the frame structure, one end of the beam 3 is slidably matched with the sliding support assembly 1, and the other end of the beam 3 is connected to an adjacent steel column 2, and the sliding support assembly 1 includes a cylinder 6 slidably matched with the beam 3. When the temperature changes, the material will produce thermal expansion and contraction. At high temperatures, the material expands, which manifests as an expansion force, and the distance between the beam and the adjacent steel column becomes smaller. At low temperatures, the material shrinks, which manifests as a contraction force, and the distance between the beam and the adjacent steel column becomes larger. Since the building structure is extra-long, the temperature stress inside the material is significant. The present invention releases the temperature stress directly through the sliding support assembly 1, which has a significant effect and is more convenient without requiring additional operations.

[0031] Specifically, if Figure 2 As shown, seven column spans are arranged along the length direction of the building, and the steel columns of the fourth column span located in the middle position of the building are all provided with sliding support assemblies 1, and the sliding support assemblies 1 only need to be arranged on one side of the steel column 2, one end of the beam 3 is slidably matched with the sliding support assembly 1, and the other end of the beam 3 is welded to the adjacent steel column 2, and the ordinary beams at the remaining nodes are all welded to the steel column 2.

[0032] On the basis of the above implementation, as a preferred implementation, the length of the beam 3 is smaller than the distance between the opposite surfaces of adjacent steel columns 2, so as to provide a release space for releasing temperature stress.

[0033] Based on the above implementation, as a preferred implementation, Figure 4 As shown, a corbel 7 is connected to the side of the steel column 2, and the sliding support assembly 1 is arranged between the corbel 7 and the beam 3. The corbel 7 improves the stability of the connection between the sliding support assembly 1 and the building.

[0034] On the basis of the above-mentioned embodiment, as a preferred embodiment, the sliding support assembly 1 includes a plurality of baffles 4 arranged on the upper surface of the corbel 7, and the cylinder 6 is arranged in the cavity enclosed by the plurality of baffles 4, and the axis of the cylinder 6 is parallel to the width direction of the beam 3.

[0035] Specifically, the baffle 4 includes a baffle 1 arranged along the axial direction of the cylinder 6 and a baffle 2 arranged along the radial direction of the cylinder 6. The two baffles 1 and the two baffles 2 enclose a rectangular space. A 40mm gap is reserved between the baffle 2 and the two ends of the cylinder 6. The cylinder 6 is 400mm long and 80mm in diameter.

[0036] On the basis of the above-mentioned embodiment, as a preferred embodiment, in order to ensure that the sliding support has a good sliding ability, the cylinder 6 is provided with at least two, such as Figure 5 shown.

[0037] On the basis of the above-mentioned implementation manner, as a preferred implementation manner, a pad 11 is arranged between the baffle 4 and the upper surface of the corbel 7. The corbel 7 needs to bear a large load pressure at the support node. The provision of a pad 11 can effectively disperse the pressure borne by the structure, reduce the impact and damage caused by the pressure, and thus improve safety.

[0038] Specifically, the pad 11 is made of a 20 mm thick steel plate, and the pad 11 is set 50 mm away from the steel column 2.

[0039] On the basis of the above-mentioned embodiment, as a preferred embodiment, in order to enhance the strength and rigidity of the connection part of the sliding support assembly 1 and prevent the sliding support assembly 1 from affecting the sliding performance of the support assembly 1 due to deformation under load, a plurality of stiffening ribs 12 are arranged between the baffle 4 and the pad 11, and four stiffening ribs 12 are arranged on the outer side of each baffle 4, such as Figure 8 shown.

[0040] Based on the above implementation, as a preferred implementation, Figure 6 As shown, a second pad 13 and a third pad 14 are sequentially arranged between the cylinder 6 and the beam 3, and a fourth pad 15 is arranged between the cylinder 6 and the first pad 11. The second pad 13, the third pad 14, and the fourth pad 15 can distribute the force of the node of the sliding support assembly 1, so that the action area is larger and the force is more uniform.

[0041] Based on the above implementation, as a preferred implementation, Figure 7 As shown, a polytetrafluoroethylene plate 16 is arranged between the backing plate 3 14 and the baffles 4 arranged on the two end surfaces of the cylinder 6, and the two side surfaces of the polytetrafluoroethylene plate 16 are respectively in contact with the backing plate 3 14 and the baffle 4. The polytetrafluoroethylene plate 16 has good abrasive properties and a low friction coefficient on the outer surface. When the beam 3 produces axial deformation under temperature changes, it can be freely released by the sliding support assembly 1 of the present invention.

[0042] On the basis of the above-mentioned implementation manner, as a preferred implementation manner, a gap is provided between the pad four 15 and the steel column 2, so as to facilitate the construction.

[0043] The sliding support assembly in the present invention allows the deformation of the beam produced during temperature changes to be released freely without generating internal forces, thereby eliminating the adverse effects of temperature effects without affecting safety and aesthetics; materials will experience thermal expansion and contraction when the temperature changes. At high temperatures, the material expands, which manifests as an expansion force, and the distance between the beam used to release temperature stress and the adjacent steel columns becomes smaller; at low temperatures, the material shrinks, which manifests as a contraction force, and the distance between the beam used to release temperature stress and the adjacent steel columns becomes larger. Since the building structure is extremely long and the internal temperature stress of the material is significant, the present invention releases the temperature stress directly through the sliding support assembly, which has significant effects and is more convenient without the need for additional operations; the node arrangement is flexible and the construction speed is fast, and 40 tons of steel can be saved compared to conventional solutions, with significant economic benefits; when an earthquake occurs, the structure will be affected by horizontal seismic forces, and the sliding support assembly can cause the structure to slide in the horizontal direction to a certain extent, thereby consuming seismic energy, reducing the seismic response of the structure, and reducing the damage to the structure caused by the earthquake.

[0044] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0045] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A temperature stress release structure for an ultra-long steel structure building, characterized in that: The super-long steel structure building comprises a frame structure formed by columns (2) and beams (3); the temperature stress release structure comprises a sliding support assembly (1) arranged between the columns (2) and the beams (3) in the length direction of the frame structure; one end of the beam (3) is slidably matched with the sliding support assembly (1); the other end of the beam (3) is connected to an adjacent steel column (2); and the sliding support assembly (1) comprises a cylinder (6) slidably matched with the beam (3).

2. The temperature stress release structure for super-long steel structure building according to claim 1 is characterized in that: The length of the beam (3) is smaller than the distance between opposite surfaces of adjacent steel columns (2).

3. The temperature stress release structure for super-long steel structure buildings according to claim 1 or 2, characterized in that: A corbel (7) is connected to the side of the steel column (2), and the sliding support assembly (1) is arranged between the corbel (7) and the beam (3).

4. The temperature stress release structure for super-long steel structure building according to claim 3 is characterized in that: The sliding support assembly (1) comprises a plurality of baffles (4) arranged on the upper surface of the corbel (7), the cylinder (6) being arranged in a cavity enclosed by the plurality of baffles (4), and the axis of the cylinder (6) being parallel to the width direction of the beam (3).

5. The temperature stress release structure for super-long steel structure buildings according to any one of claims 1-2 and 4, characterized in that: At least two cylinders (6) are provided.

6. The temperature stress release structure for super-long steel structure building according to claim 4, characterized in that: A backing plate 1 (11) is provided between the baffle plate (4) and the upper surface of the corbel (7).

7. The temperature stress release structure for super-long steel structure building according to claim 6 is characterized in that: A plurality of stiffening ribs (12) are provided between the baffle plate (4) and the backing plate 1 (11).

8. The temperature stress release structure for super-long steel structure buildings according to claim 6 or 7, characterized in that: A second pad (13) and a third pad (14) are arranged in sequence between the cylinder (6) and the beam (3), and a fourth pad (15) is arranged between the cylinder (6) and the first pad (11).

9. The temperature stress release structure for super-long steel structure building according to claim 8, characterized in that: A polytetrafluoroethylene plate (16) is arranged between the backing plate three (14) and the baffle plates (4) arranged on the two end surfaces of the cylinder (6), and the two side surfaces of the polytetrafluoroethylene plate (16) are respectively in contact with the backing plate three (14) and the baffle plates (4).

10. The temperature stress release structure for super-long steel structure building according to claim 8, characterized in that: A gap is provided between the pad four (15) and the steel column (2).

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