Steel gallery for flexible connection of purlines and columns
By flexibly connecting the purlins to the columns and utilizing connectors and clearance fits, the problem of deformation and cracking of the purlins due to thermal expansion and contraction is solved. This achieves a stable connection of the purlins under temperature changes, avoids cracking of the purlins, and enhances the structural stability of the steel corridor.
Patent Information
- Application Number
- CN202520018638.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-03
AI Technical Summary
The problem of purlins deforming and cracking due to thermal expansion and contraction during temperature changes is particularly difficult to overcome when used in large buildings or harsh environments.
The purlins and columns are flexibly connected by connectors. A clearance fit is set between the purlins and the connectors, with a first gap between adjacent purlins and an appropriate hole diameter difference between the purlins and the connecting bolts. This allows the purlins to move relative to each other when the temperature changes, thus avoiding cracking caused by the fixed connection.
This effectively avoids the cumulative deformation of purlins caused by thermal expansion and contraction, ensuring that purlins can move smoothly when the temperature changes, preventing cracking, and enhancing the connection stability between purlins and steel structures.
Smart Images

Figure CN223951929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel corridors, specifically to a steel corridor with flexible connection between purlins and columns. Background Technology
[0002] A steel corridor refers to a corridor or passageway constructed of steel. It may refer to a long walkway, corridor, bridge, or connecting structure built with steel. Due to its high strength, durability, and structural flexibility, steel is frequently used in the construction of large buildings or engineering projects, especially in locations requiring heavy loads or operating in harsh environments.
[0003] Purlins are widely used as external cladding components for steel-clad corrugated sheets on walls. As lightweight steel structural members, purlins come in various types, including C-shaped, Z-shaped, and H-shaped, and are installed along the entire length of the building. However, purlins installed along the entire length are difficult to withstand the effects of thermal expansion and contraction caused by temperature changes during actual use, leading to deformation and cracking. Utility Model Content
[0004] The purpose of this invention is to provide a steel corridor in which purlins and columns are flexibly connected, which can prevent the purlins from deforming and cracking.
[0005] To achieve the above objectives, this utility model provides a steel corridor with flexible connection between purlins and columns. The steel corridor with flexible connection between purlins and columns includes purlins, columns, and connectors for connecting purlins and columns. One end of the connector is fixedly connected to the column, and the other end is screwed to the purlin, with a clearance fit between the purlin and the connecting bolt.
[0006] The steel corridor with flexible connection between purlins and columns includes multiple purlins, which are connected end to end and located on the same horizontal plane, and adjacent purlins are connected by the connectors.
[0007] Two adjacent purlins are respectively connected to both sides of the connector, and a first gap is provided between the two adjacent purlins.
[0008] Preferably, the connector is provided with a first connecting hole, the purlin is provided with a second connecting hole, and the connecting bolt connects the first connecting hole and the second connecting hole;
[0009] The diameter of the first connecting hole is larger than the diameter of the connecting bolt, and the diameter of the second connecting hole is larger than the diameter of the connecting bolt.
[0010] Preferably, the difference between the diameter of the first connecting hole and the diameter of the connecting bolt is 3-5 mm;
[0011] The difference between the diameter of the second connecting hole and the diameter of the connecting bolt is 1-2 mm.
[0012] Preferably, the width of the first gap is set to 5-10 mm.
[0013] Preferably, a second gap is provided between the purlin and the column.
[0014] Preferably, the width of the second gap is set to 8-12 mm.
[0015] Preferably, the outer side of the purlin extends beyond the end of the connector.
[0016] Preferably, the distance by which the outer side of the purlin extends beyond the end of the connector is set to 5-10 mm.
[0017] Preferably, a reinforcing plate is provided at the position where the connector connects to the column.
[0018] According to the above technical solution, the purlin of this utility model is fixedly connected to the column through the connector, thereby achieving relative fixation between the purlin and the column. Then, the steel plate wall is fixed to the purlin, thereby completing the closure of both sides of the steel corridor.
[0019] In this steel corridor where purlins are flexibly connected to columns, the purlins and connectors are bolted together. A clearance fit between the holes in the purlins and connectors and the connecting bolts allows for this flexible connection. When the purlins operate in environments with varying temperatures, and the purlins themselves expand and contract with temperature changes, the relative position between the purlins and connectors may need to change. The clearance fit provides space for relative displacement between the purlins and connectors, thus preventing the connecting bolts from exerting excessive force on the purlins. Therefore, by using a bolted connection between the purlins and connectors, the problem of relative displacement between the purlins and the steel structure caused by inconsistent deformation can be solved.
[0020] By setting multiple purlins with a first gap between adjacent purlins, the problem of deformation in the length direction when the purlins are subjected to thermal expansion and contraction can be solved.
[0021] When purlins expand due to heat, the deformation along their length gradually accumulates. If both ends of the continuous purlin are fixed to the steel structure, there is insufficient displacement space to accommodate the deformation, ultimately leading to the purlin tearing. This steel gallery, flexibly connecting the purlins to the column, uses multiple purlins spliced along its length to achieve full coverage. This splicing method effectively avoids the accumulation of purlin deformation, ensuring that the deformation of each purlin is small when temperature changes occur. Connectors can accommodate the slight deformation of each purlin.
[0022] Specifically, a first gap is provided between two adjacent purlins. When the ambient temperature changes, the length of the purlin expands or contracts. If the purlin length decreases, the relative movement between the purlin and the connecting plate can be achieved through the clearance fit between the purlin and the connecting bolt. When the purlin length increases, the relative movement between the purlin and the connecting plate can also be achieved through the clearance fit between the purlin and the bolt. Moreover, the first gap between two adjacent purlins provides space for the movement of the purlin, thereby preventing the purlin from being torn. Preferably, the length of the purlin is set to 10-15m to avoid excessive deformation of the purlin under thermal expansion and contraction.
[0023] Therefore, by setting the purlins to be screwed to the connectors, and by setting a first gap between two adjacent purlins, the situation where the purlins are torn due to thermal expansion and contraction can be effectively avoided.
[0024] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0026] Figure 1 This is a front view of a steel corridor where purlins and columns are flexibly connected;
[0027] Figure 2 yes Figure 1 A bottom view;
[0028] Figure 3 This is a front view of a steel corridor where purlins and columns are flexibly connected;
[0029] Figure 4 yes Figure 3 A bottom view;
[0030] Figure 5 This is a bottom view of a steel corridor where purlins and columns are flexibly connected;
[0031] Figure 6 yes Figure 5 The main view;
[0032] Figure 7 This is a top view of a steel corridor with flexible connections between purlins and columns;
[0033] Figure 8 yes Figure 7 The main view.
[0034] Explanation of reference numerals in the attached figures
[0035] Detailed Implementation
[0036] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0037] In this utility model, unless otherwise stated, directional words such as "outer side," "between," and "adjacent" in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.
[0038] See Figure 1-8 A steel corridor with flexible connection between purlins and columns, comprising purlin 1, column 2 and connector 3 for connecting purlin 1 and column 2, wherein one end of connector 3 is fixedly connected to column 2 and the other end is screwed to purlin 1, and there is a clearance fit between purlin 1 and bolt.
[0039] The steel corridor with flexible connection between purlins and columns includes multiple purlins 1, which are connected end to end and located on the same horizontal plane. Adjacent purlins 1 are connected by connectors 3.
[0040] Two adjacent purlins 1 are respectively connected to the two sides of the connector 3, and a first gap 31 is provided between two adjacent purlins 1.
[0041] Through the implementation of the above technical solution, the purlin 1 is fixedly connected to the column 2 through the connector 3, thereby achieving relative fixation between the purlin 1 and the column 2. Then, the steel plate wall 10 is fixed to the purlin 1, thereby completing the enclosure of both sides of the steel corridor.
[0042] In this steel corridor where purlins are flexibly connected to columns, purlin 1 and connector 3 are bolted together. By setting a clearance fit between the holes of purlin 1 and connector 3 and the connecting bolts, the flexible connection between purlin 1 and connector 3 can be achieved. When purlin 1 operates in an environment with changing temperatures, its thermal expansion and contraction may cause changes in the relative position between purlin 1 and connector 3. The clearance fit provides space for relative displacement between purlin 1 and connector 3, thus preventing the connecting bolts from exerting excessive force on purlin 1. Therefore, by setting a bolted connection between purlin 1 and connector 3, the problem of relative displacement between purlin 1 and the steel structure caused by inconsistent deformation can be solved.
[0043] By setting multiple purlins 1 and providing a first gap 31 between two adjacent purlins 1, the problem of deformation in the length direction when the purlins 1 are subjected to thermal expansion and contraction can be solved.
[0044] When purlin 1 is heated and expands, the deformation along its length will gradually accumulate. If both ends of the continuous purlin 1 are fixedly connected to the steel structure, there will not be enough displacement space to meet the deformation requirements of purlin 1, eventually leading to purlin 1 cracking. The steel corridor that flexibly connects the purlin to the column uses multiple purlins 1 spliced along the length of the corridor to achieve full coverage along its length. Using multiple spliced purlins 1 effectively avoids the accumulation of purlin 1 deformation, ensuring that the deformation of each purlin 1 is small when temperature changes occur. The connector 3 can adapt to the small deformation of each purlin 1.
[0045] Specifically, a first gap 31 is provided between two adjacent purlins 1. When the ambient temperature changes, the length of the purlin 1 expands or contracts. If the length of the purlin 1 decreases, the relative movement between the purlin 1 and the connecting bolt 5 can be achieved through the gap fit between the purlin 1 and the connecting bolt 5. When the length of the purlin 1 increases, the relative movement between the purlin 1 and the connecting bolt 5 can also be achieved through the gap fit between the purlin 1 and the connecting bolt 5. Moreover, the first gap 31 between two adjacent purlins 1 provides space for the movement of the purlin 1, thereby preventing the purlin 1 from being torn. Preferably, the length of the purlin 1 is set to 10-15m to avoid excessive deformation of the purlin 1 under thermal expansion and contraction.
[0046] Therefore, by setting the purlin 1 to be screwed to the connector 3, and setting a first gap 31 between two adjacent purlins 1, the situation where the purlin 1 is torn due to thermal expansion and contraction can be effectively avoided.
[0047] In this embodiment, preferably, the connector 3 is provided with a first connecting hole 32, the purlin 1 is provided with a second connecting hole 11, and the connecting bolt connects the first connecting hole 32 and the second connecting hole 11;
[0048] The diameter of the first connecting hole 32 is larger than the diameter of the connecting bolt, and the diameter of the second connecting hole 11 is larger than the diameter of the connecting bolt.
[0049] When the purlin 1 deforms along its length, the gap between the purlin 1 and the connecting bolt 5 provides space for the purlin 1 to move. The purlin 1 can extend or shorten its length by generating relative displacement with the connecting bolt 5.
[0050] Since the thickness of purlin 1 is generally small, the second connecting hole 11 should be set as small as possible to ensure the strength of purlin 1 at the connection position. Therefore, the diameter of the first connecting hole 32 can be set to be larger.
[0051] When purlin 1 deforms along its length and its length expands or contracts, purlin 1 first moves to the limit position of the second connecting hole 11 and the connecting bolt 5. If this still cannot meet the deformation requirements of purlin 1, then purlin 1 will drive the connecting bolt 5 to move together until it moves to the limit position of the connecting bolt 5 and the first connecting hole 32. Therefore, by using this method of cooperation between the second connecting hole 11, the first connecting hole 32 and the connecting bolt 5, a larger displacement space can be provided for the deformation of purlin 1.
[0052] In this embodiment, preferably, the difference between the diameter of the first connecting hole 32 and the diameter of the connecting bolt 5 is 3-5 mm;
[0053] The difference between the diameter of the second connecting hole 11 and the diameter of the connecting bolt 5 is 1-2 mm.
[0054] Assuming the difference between the diameter of the first connecting hole 32 and the diameter of the connecting bolt 5 is L1, and the difference between the diameter of the second connecting hole 11 and the diameter of the connecting bolt 5 is L2, the maximum displacement that the purlin 1 can obtain after installation is limited by the initial position of the purlin 1 during installation, and is no greater than L1+L2.
[0055] Preferably, the relative positions of the second connecting hole 11, the first connecting hole 32, and the connecting bolt 5 can be reasonably set according to the temperature conditions during installation.
[0056] When the temperature is high during installation, the connecting bolt 5 should be close to the inside of the second connecting hole 11, and at the same time, the connecting bolt 5 should also be close to the outside of the first connecting hole 32 so that when the temperature decreases and the purlin 1 shrinks, it can be moved inward through the second connecting hole 11 and the connecting bolt 5 can be moved inward to obtain the maximum displacement.
[0057] Similarly, when the temperature is low during installation, the connecting bolt 5 should be close to the outside of the second connecting hole 11, and at the same time, the connecting bolt 5 should also be close to the inside of the first connecting hole 32 so that when the temperature rises and the purlin 1 elongates, it can move outward through the second connecting hole 11 and push the connecting bolt 5 outward to obtain the maximum displacement.
[0058] When the installation temperature is moderate, the connecting bolt 5 can be positioned close to the axis of the second connecting hole 11 and the first connecting hole 32. Similarly, the axes of the second connecting hole 11 and the first connecting hole 32 can be positioned as close as possible.
[0059] Since the purlin 1 is usually thin, in order to avoid affecting the strength of the purlin 1 at the end, the difference between the diameter of the second connecting hole 11 and the diameter of the connecting bolt 5 is 1-2mm, so that the diameter of the second connecting hole 11 is as small as possible.
[0060] When the diameter of the second connecting hole 11 is as small as possible, in order to obtain a larger adjustment range, the difference between the diameter of the first connecting hole 32 and the diameter of the connecting bolt 5 can be 3-5mm, so that the purlin 1 can actually obtain a displacement space of about 5mm.
[0061] In this embodiment, preferably, the width of the first gap 31 is set to 8-12 mm.
[0062] The width of the first gap 31 is set to 8-12mm, so that each of the two adjacent purlins 1 can obtain a displacement space of 4-6mm.
[0063] In this embodiment, preferably, a second gap 12 is provided between the purlin 1 and the column 2.
[0064] By setting the second gap 12, the purlin 1 also has the freedom to move in its width direction. Setting the second gap 12 can provide space for the purlin 1 to deform in the horizontal direction. On the other hand, since the purlin 1 is very long, it is sometimes difficult to ensure straightness. Setting the second gap 12 can provide the purlin 1 with a more convenient and flexible installation space.
[0065] In this embodiment, preferably, the width of the second gap 12 is set to 5-10 mm.
[0066] In this embodiment, preferably, the outer side of the purlin 1 extends beyond the end of the connector 3.
[0067] Purlin 1 is directly connected to steel plate wall 10. Since the connection between purlin 1 and the steel structure is flexible, steel plate wall 10 can also achieve some displacement through purlin 1 to cope with temperature changes or external forces. Therefore, the end of connector 3 should not be too close to steel plate wall 10 to avoid contact between connector 3 and steel plate wall 10, which would restrict the movement of steel plate wall 10.
[0068] In this embodiment, preferably, the distance by which the outer side of the purlin 1 extends beyond the end of the connector 3 is set to 5-10 mm.
[0069] In this embodiment, preferably, a reinforcing plate 4 is provided at the position where the connector 3 connects to the column 2.
[0070] like Figure 1-4 As shown, when the connector 3 is connected to the vertical plate in the middle of the column 2, the reinforcing plate 4 is set at the same height on the other side of the column 2 in order to reinforce and support the vertical plate at the connection position and improve the reliability of the connector 3.
[0071] like Figure 5-8 As shown, when the connector 3 is connected to the side plates on both sides of the column 2, the reinforcing plate 4 is set at the same height inside the column 2. Two reinforcing plates 4 are provided, and the two are welded to both sides of the vertical plate respectively, so as to reinforce and support the side plates at the connection position and improve the reliability of the connector 3.
[0072] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0073] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0074] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A steel gallery with flexible connection of purlins to columns, characterized in that, The steel corridor with flexible connection between purlin and column body comprises a purlin (1), a column body (2) and a connecting piece (3) for connecting the purlin (1) and the column body (2), one end of the connecting piece (3) is fixedly connected with the column body (2), the other end is screwed with the purlin (1), and the purlin (1) and the connecting bolt (5) are gap-fitted; The steel corridor with flexible connection between purlin and column body comprises a plurality of the purlins (1), the plurality of the purlins (1) are connected end to end and located on the same horizontal plane, and two adjacent purlins (1) are connected through the connecting piece (3); The two adjacent purlins (1) are respectively connected to two sides of the connecting piece (3), and a first gap (31) is arranged between the two adjacent purlins (1).
2. Steel gallery with flexible connection of purlins to column according to claim 1, characterized in that, The connecting piece (3) is provided with a first connecting hole (32), the purlin (1) is provided with a second connecting hole (11), and the connecting bolt (5) connects the first connecting hole (32) and the second connecting hole (11). The diameter of the first connecting hole (32) is greater than the diameter of the connecting bolt (5), and the diameter of the second connecting hole (11) is greater than the diameter of the connecting bolt (5).
3. Steel gallery according to claim 2, characterized in that, The difference between the diameter of the first connecting hole (32) and the diameter of the connecting bolt (5) is 3-5mm. The difference between the diameter of the second connecting hole (11) and the diameter of the connecting bolt (5) is 1-2mm.
4. Steel gallery according to claim 3, characterized in that, The width of the first gap (31) is set to 5-10mm.
5. The steel gallery of claim 1, wherein, A second gap (12) is arranged between the purlin (1) and the column body (2).
6. Steel gallery according to claim 5, characterized in that, The width of the second gap (12) is set to 8-12mm.
7. The steel gallery of claim 1, wherein, The outer side of the purlin (1) exceeds the end of the connecting piece (3).
8. Steel gallery according to claim 7, characterized in that, The distance between the outer side of the purlin (1) and the end of the connecting piece (3) is set to 5-10mm.
9. The steel gallery of claim 1, wherein, The position where the connecting piece (3) is connected with the column body (2) is provided with a reinforcing plate.