A profile steel connecting structure of an anti-seismic support

Abstract

The utility model discloses a kind of sectional steel connecting structure of anti-vibration support, it is related to the technical field of anti-vibration support, including W type steel, inner connecting piece, outer connecting piece and bolt assembly, inner connecting piece, outer connecting piece are respectively located at the inside and outside of two W type steel connecting place, W type steel, inner connecting piece, outer connecting piece are connected by bolt assembly;W type steel includes center web, inclined web and sectional steel flange;The inner connecting piece includes inner side web and the inner side flange located at the both sides of inner side web;Outer connecting piece includes outer side web and the outer side flange located at the both sides of outer side web;Center web, inner side web, outer side web are all set with pentacle combination hole;Bolt assembly includes bolt and nut, bolt includes screw rod part, pentacle part and screw head part. By two linearly arranged W type steel cooperation inner and outer connecting piece, W type steel of different length can be selected according to the requirement of scene and lengthened, without welding or customizing long sectional steel, adapt to different pipeline span, and the use flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of seismic bracing technology, and in particular to a steel connection structure for seismic bracing. Background Technology

[0002] In seismic engineering of building electromechanical systems, the length of seismic bracing needs to be flexibly adapted according to the pipeline laying path. When the pipeline span is large or the path is complex, it is often necessary to connect multiple sections of steel to meet the length requirements.

[0003] Currently, there are two main methods for connecting W-shaped steel sections: one is welding, which involves welding the ends of two W-shaped steel sections together. While this method offers high connection strength, the welding process can easily lead to stress concentration, damaging the original structural strength of the W-shaped steel. Furthermore, the length is fixed after welding and cannot be adjusted. If there are dimensional deviations on site, it is necessary to re-cut and re-weld, resulting in poor construction flexibility. The other method is simple bolt connection, which involves drilling holes in the webs of the two W-shaped steel sections and using ordinary bolts for fixing. While this method avoids welding damage, the connection stability is poor because the force is only applied through a single web. It is prone to loosening under vibration loads, and the mounting holes are fixed in position, making it impossible to adapt to on-site installation deviations. Additional drilling is required for adjustment, further reducing the structural strength.

[0004] In addition, the existing connection structure lacks a targeted clamping and limiting design. After the two W-shaped steel sections are joined together, lateral displacement or angular deviation is likely to occur, resulting in insufficient overall flatness of the support and affecting the pipeline installation accuracy and seismic performance. Utility Model Content

[0005] To address the technical problems of fixed length, poor connection stability, and difficulty in adapting to installation deviations in existing W-shaped steel connection methods, this utility model provides a steel connection structure for seismic bracing. By clamping double W-shaped steel with inner and outer connectors and combining them with pentagonal combination holes, flexible lengthening and installation fine-tuning can be achieved, ensuring connection strength and stability.

[0006] To achieve the above objectives, this utility model provides a steel connection structure for an anti-seismic brace, including a W-shaped steel, an inner connector, an outer connector, and a bolt assembly. Two W-shaped steels are provided and arranged linearly. The inner connector and the outer connector are located on the inner and outer sides of the connection between the two W-shaped steels, respectively. The W-shaped steel, the inner connector, and the outer connector are connected by at least two bolt assemblies. The W-shaped steel includes a central web, a diagonal web, and steel flanges. The diagonal web is located on both sides of the central web, the steel flanges are located on both sides of the central web, and the diagonal web is located between the steel flanges and the central web. The inner connecting member includes an inner web and inner flanges located on both sides of the inner web; the outer wall of the inner web contacts and engages with the inner wall of the central web, and the inner flanges contact and engage with the inner wall of the oblique web. The external connector includes an outer web and outer flanges located on both sides of the outer web; the inner wall of the outer web contacts and engages with the outer wall of the central web, and the outer flanges contact and engage with the outer wall of the oblique web. Five-pointed star combination holes are provided on the central web, inner web, and outer web; The bolt assembly includes a bolt and a nut. The bolt includes a threaded portion, a pentagonal portion, and a threaded head. The threaded portion passes through the pentagonal assembly hole and is threadedly connected to the nut. The pentagonal combination hole includes at least two snap-fit ​​holes that can engage with the pentagonal part.

[0007] In a preferred embodiment, the outer wall of the inner web plate is attached to the inner wall of the central web plate, and the inner flange is attached to the inner wall of the oblique web plate; the inner wall of the outer web plate is attached to the outer wall of the central web plate, and the outer flange is attached to the outer wall of the oblique web plate.

[0008] In the above implementation scheme, the double-layer bonding structure of "inner web plate - central web plate - outer web plate" and "inner flange - oblique web plate - outer flange plate" enables the full contact surface of the W-shaped steel joint to bear the force, avoid local stress concentration, and at the same time strengthen the limiting effect of inner and outer clamping, prevent the W-shaped steel from lateral displacement or angular misalignment under vibration load, and improve the overall stability of the connection.

[0009] In a preferred embodiment, the pentagonal combination hole is composed of two side pentagonal holes and a serrated connecting hole located between the two side pentagonal holes. The serrated connecting hole partially overlaps with the two side pentagonal holes. The serrated connecting hole includes at least one set of symmetrically arranged V-shaped grooves. The side pentagonal holes and any set of symmetrically arranged V-shaped grooves form a snap-fit ​​hole.

[0010] In the above implementation scheme, the multi-clamping hole design provides multiple levels of fine-tuning space for the W-shaped steel connection position, which can flexibly adapt to on-site installation deviations, such as W-shaped steel length errors and butt joint flatness deviations, without the need for additional drilling adjustments, thus avoiding damage to the structural integrity of the components. At the same time, the continuous through-hole structure ensures that the screw part can move smoothly, simplifying the fine-tuning operation process.

[0011] In a preferred embodiment, the included angle of the V-groove is 108 degrees.

[0012] In the above implementation scheme, the 108-degree included angle is perfectly matched with the inner angle of the pentagonal cross-section of the pentagonal part, which can realize the precise snap-fit ​​between the V-groove and the pentagonal part, avoid loosening caused by the snap-fit ​​gap, and at the same time ensure the uniformity of force during snap-fit, prevent the pentagonal part or V-groove from deforming due to excessive local force, and improve the durability of the snap-fit ​​structure.

[0013] In a preferred embodiment, the W-shaped steel section further includes an end connecting plate located on the side of the steel section away from the inclined web.

[0014] In the above implementation scheme, the end connecting plate can enhance the end structural strength of the steel flange and prevent bending deformation of the flange end due to stress concentration when the W-shaped steel is butted; at the same time, the end connecting plate can form a lateral barrier to help limit the installation position of the inner and outer connecting parts, prevent the connecting parts from shifting along the flange length direction, and improve the overall assembly accuracy.

[0015] In a preferred embodiment, an arc transition portion is provided between the central web and the inclined web, between the inclined web and the steel flange, and between the steel flange and the end connecting plate.

[0016] In the above implementation scheme, the arc transition section can effectively disperse the stress concentration at each connection point, and prevent cracking at the sharp corners due to excessive stress when the seismic support is subjected to vibration load or gravity load; at the same time, the smooth transition structure reduces the stress residue during component processing, improves the overall fatigue resistance of the W-shaped steel, and extends its service life.

[0017] In a preferred embodiment, the central web is provided with a plurality of pentagonal combination holes, which are distributed along the length interval of the central web.

[0018] In the above implementation scheme, the multiple spaced combination holes can be flexibly selected to connect the W-shaped steel according to the actual extension requirements, adapting to different pipeline spans. For example, adjacent holes can be selected for short-span pipelines, and spaced holes can be selected for long-span pipelines. There is no need to customize W-shaped steel of different lengths, which improves the versatility and flexibility of the product.

[0019] In a preferred embodiment, at least two pentagonal combination holes are provided on both the inner and outer webs; the spacing between the pentagonal combination holes on the central web, inner web, and outer web is the same.

[0020] In the above implementation scheme, the hole design with the same spacing ensures that the five-pointed star combination holes of the three can be accurately aligned, avoiding the problem that bolts cannot be inserted due to hole misalignment, and simplifying the assembly operation; at the same time, at least two holes can realize multiple bolt fixation, forming a multi-point force structure, avoiding connection failure caused by single-point force, and improving the overall load-bearing capacity.

[0021] In a preferred embodiment, the cross-section of the pentagonal part is pentagonal in shape.

[0022] In the above implementation scheme, the pentagonal star structure has a stronger anti-rotation capability compared with the traditional circular or square snap-fit ​​structure, which can effectively prevent the bolt from rotating and loosening under vibration load; at the same time, the polygonal structure design makes the contact area between the pentagonal part and the snap-fit ​​hole larger, the force is more uniform, the local wear is reduced, and the service life of the bolt assembly is improved.

[0023] The pentagonal part is engaged with at least one of the pentagonal combination holes on the central web, the inner web, and the outer web.

[0024] Compared with existing technologies, this technical solution has at least one of the following beneficial effects: 1. By using two linearly arranged W-shaped steels with internal and external connectors, different lengths of W-shaped steels can be selected for splicing according to site requirements. No welding or custom-made length steel is required. It is suitable for different pipeline spans and has high flexibility in use. 2. The inner and outer connecting parts clamp the central web and the inclined web of the W-shaped steel from the inner and outer sides respectively, forming a two-way clamping structure, which effectively prevents the lateral displacement and angular deviation of the W-shaped steel after the joint; at the same time, at least two bolt assemblies are subjected to force simultaneously to avoid single-point loosening and improve the connection stability under vibration load. 3. The multi-clamping hole design of the five-pointed star combination hole, combined with the movable space of the screw section, allows for flexible fine adjustment of the relative connection position of the two W-shaped steels without additional drilling, and is suitable for on-site installation deviations, such as W-shaped steel length errors and butt joint flatness deviations. Attached Figure Description

[0025] Figure 1 This is a perspective view of the steel connection structure of the seismic brace according to an embodiment of the present utility model; Figure 2 This is a front view of the steel connection structure of the seismic bracing according to an embodiment of the present utility model; Figure 3 This is a top view of the steel connection structure of the seismic bracing according to an embodiment of the present utility model; Figure 4 This is an exploded view of the steel connection structure of the seismic brace according to an embodiment of the present utility model; In the diagram, 1. W-shaped steel; 11. Central web; 12. Sloping web; 13. Steel flange; 14. Arc transition section; 15. End connecting plate; 2. Inner connector; 21. Inner web; 22. Inner flange; 3. Bolt assembly; 31. Bolt; 311. Threaded rod; 312. Pentagonal part; 313. Threaded head; 32. Nut; 4. Pentagonal combination hole; 41. Side pentagonal hole; 42. Serrated connecting hole; 421. V-groove; 5. Outer connector; 51. Outer web; 52. Outer flange. Detailed Implementation

[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] Please see Figures 1 to 4 This application provides a steel connection structure for an anti-seismic brace, including a W-shaped steel 1, an inner connector 2, an outer connector 5, and a bolt assembly 3. Two W-shaped steels 1 are arranged linearly, with their ends butted together or with a small gap. The inner connector 2 and the outer connector 5 are located on the inner and outer sides of the connection point of the two W-shaped steels 1, respectively, forming a clamping structure. The W-shaped steel 1, the inner connector 2, and the outer connector 5 are detachably connected by two bolt assemblies 3, and different specifications of W-shaped steel 1 can be replaced according to length requirements.

[0028] W-shaped steel 1 is the main load-bearing component of the support, including a central web plate 11, an inclined web plate 12, a steel flange 13, an arc transition section 14, and an end connecting plate 15.

[0029] The inclined web 12 is symmetrically distributed on both sides of the central web 11, and the steel flange 13 is symmetrically distributed on both sides of the central web 11 and located on the side of the inclined web 12 away from the central web 11, that is, the inclined web 12 is sandwiched between the central web 11 and the steel flange 13. The end connecting plate 15 is vertically fixed to the side of the steel flange 13 away from the inclined web plate 12, in order to enhance the end strength of the steel flange 13 and prevent deformation under stress. The arc transition section 14 is provided at the connection between the central web plate 11 and the inclined web plate 12, the inclined web plate 12 and the steel flange 13, and the steel flange 13 and the end connecting plate 15, in order to disperse stress concentration and improve the crack resistance of the structure. Multiple pentagonal combination holes 4 are spaced apart along the length of the central web plate 11. The spacing between each pentagonal combination hole 4 is the same, providing a range of options for fine-tuning the connection position and extending multiple sections.

[0030] The inner connector 2 is an inner clamping member that fits against the inner wall of the W-shaped steel 1, and includes an inner web 21 and inner flanges 22 symmetrically fixed on both sides of the inner web 21. The outer wall of the inner web 21 is closely fitted with the inner wall of the central web 11 of the two W-shaped steels 1, covering the joint area of ​​the two W-shaped steels 1, to ensure uniform stress on the inner side. The outer wall of the inner flange 22 is closely fitted with the inner wall of the inclined web 12 of the two W-shaped steels 1, forming an inner support for the inclined web 12 and preventing the W-shaped steels 1 from shifting laterally. At least two pentagonal combination holes 4 are provided on the inner web plate 21. The spacing between the holes is the same as the spacing between the pentagonal combination holes 4 on the central web plate 11, so as to ensure that the bolt assembly 3 can be installed and connected synchronously.

[0031] The outer connecting member 5 is an outer clamping member that fits against the outer wall of the W-shaped steel 1, and includes an outer web 51 and outer flanges 52 symmetrically fixed on both sides of the outer web 51. The inner wall of the outer web 51 is closely fitted with the outer wall of the central web 11 of the two W-shaped steels 1, and together with the inner web 21, it clamps the central web 11 to form a bidirectional force-bearing structure. The inner wall of the outer flange 52 is closely fitted with the outer wall of the inclined web 12 of the two W-shaped steels 1, and together with the inner flange 22, it clamps the inclined web 12, further strengthening the lateral limit and avoiding deviation of the W-shaped steels 1 at the docking angle. Two pentagonal combination holes 4 are provided on the outer web plate 51. The spacing between the holes is the same as the spacing between the pentagonal combination holes 4 on the central web plate 11 and the inner web plate 21, ensuring that the holes are aligned.

[0032] The pentagram combination hole 4 is the core component for fine-tuning the connection position, including two side pentagram holes 41 and a serrated connection hole 42: The serrated connecting hole 42 is located between the two side pentagonal holes 41 and partially overlaps with the two side pentagonal holes 41, forming a continuous through channel. The sawtooth connecting hole 42 is provided with two sets of symmetrically arranged V-shaped grooves 421. The included angle of the V-shaped grooves 421 is 108°, which is adapted to the pentagonal part 312 of the bolt assembly 3 to ensure stable snap-fit. The five-pointed star hole 41 on the side and any set of symmetrically arranged V-shaped grooves 421 each constitute an independent snap-fit ​​hole position. That is, the five-pointed star combination hole 4 has 4 snap-fit ​​holes, which can meet the multi-position fine adjustment requirements of the connection position.

[0033] Bolt assembly 3 is used to fix and fine-tune the W-shaped steel 1, inner connector 2, and outer connector 5. It includes bolts 31 and nuts 32. The pentagonal part 312 can be adjusted in thickness according to the connection strength requirements to achieve snap-fit ​​fit with different numbers of holes. The specific structure is as follows: Bolt 31 is composed of a threaded part 311, a pentagonal part 312 and a threaded head 313 that are coaxially fixed in sequence; the cross-section of the pentagonal part 312 is pentagonal, and its size is adapted to the snap-fit ​​hole position, so as to realize interference or transition snap-fit ​​and avoid loosening. The 312mm thickness of the pentagonal section can be designed in stages according to requirements: When the thickness is at its thinnest, the pentagonal part 312 can only be engaged with at least one of the pentagonal combination holes 4 of the central web 11, the pentagonal combination holes 4 of the inner web 21, and the pentagonal combination holes 4 of the outer web 51. If it is only engaged with the central web 11, it is suitable for conventional earthquake-resistant scenarios. When the thickness is in the middle range, the pentagonal part 312 can be engaged with the corresponding two holes at the same time, such as engaging with the central web 11 and the outer web 51 at the same time, which is suitable for medium and high seismic resistance scenarios. When the thickness is at its maximum, the pentagonal part 312 can simultaneously engage with three holes: the pentagonal combination hole 4 of the central web plate 11, the pentagonal combination hole 4 of the inner web plate 21, and the pentagonal combination hole 4 of the outer web plate 51, making it suitable for ultra-high seismic resistance scenarios. The diameter of the screw part 311 is smaller than the width of the narrowest part of the serrated connecting hole 42, so that the screw part 311 can move freely along the length direction of the serrated connecting hole 42, providing space for fine adjustment of the connection position; after the screw part 311 passes through the pentagonal combination hole 4 of the outer connector 5, the pentagonal combination hole 4 of the W-shaped steel 1, and the pentagonal combination hole 4 of the inner connector 2 in sequence, it is threadedly connected to the nut 32, and the three are tightly fixed by tightening the nut 32.

[0034] It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A steel connection structure for a seismic bracing system, characterized in that, It includes W-shaped steel (1), inner connector (2), outer connector (5) and bolt assembly (3). Two W-shaped steels (1) are arranged in a linear manner. The inner connector (2) and outer connector (5) are located on the inner and outer sides of the connection between the two W-shaped steels (1). The W-shaped steels (1), inner connector (2) and outer connector (5) are connected by at least two bolt assemblies (3). The W-shaped steel (1) includes a central web (11), a diagonal web (12), and a steel flange (13). The diagonal web (12) is located on both sides of the central web (11), the steel flange (13) is located on both sides of the central web (11), and the diagonal web (12) is located between the steel flange (13) and the central web (11). The inner connector (2) includes an inner web (21) and inner flanges (22) located on both sides of the inner web (21); the outer wall of the inner web (21) is in contact with the inner wall of the central web (11), and the inner flanges (22) are in contact with the inner wall of the oblique web (12); The external connector (5) includes an outer web (51) and outer flanges (52) located on both sides of the outer web (51); the inner wall of the outer web (51) is in contact with the outer wall of the central web (11), and the outer flanges (52) are in contact with the outer wall of the oblique web (12). Five-pointed star combination holes (4) are provided on the central web (11), inner web (21), and outer web (51). The bolt assembly (3) includes a bolt (31) and a nut (32). The bolt (31) includes a shank (311), a pentagonal part (312), and a threaded head (313). The shank (311) passes through the pentagonal combination hole (4) and is threadedly connected to the nut (32). The pentagonal combination hole (4) includes at least two snap-fit ​​holes that can engage with the pentagonal part (312).

2. The steel connection structure of the seismic bracing according to claim 1, characterized in that, The outer wall of the inner web (21) is attached to the inner wall of the central web (11), and the inner flange (22) is attached to the inner wall of the oblique web (12); the inner wall of the outer web (51) is attached to the outer wall of the central web (11), and the outer flange (52) is attached to the outer wall of the oblique web (12).

3. The steel connection structure of the seismic bracing according to claim 1, characterized in that, The five-pointed star combination hole (4) consists of two side five-pointed star holes (41) and a serrated connecting hole (42) located between the two side five-pointed star holes (41). The serrated connecting hole (42) partially overlaps with the two side five-pointed star holes (41). The serrated connecting hole (42) includes at least one set of symmetrically arranged V-shaped grooves (421). The side five-pointed star holes (41) and any set of symmetrically arranged V-shaped grooves (421) form a snap-fit ​​hole.

4. The steel connection structure of the seismic bracing according to claim 3, characterized in that, The included angle of the V-groove (421) is 108 degrees.

5. The steel connection structure of the seismic bracing according to claim 1, characterized in that, The W-shaped steel (1) also includes an end connecting plate (15), which is located on the side of the steel away from the inclined web (12).

6. The steel connection structure of the seismic bracing according to claim 5, characterized in that, A circular arc transition section (14) is provided between the central web plate (11) and the inclined web plate (12), between the inclined web plate (12) and the steel flange (13), and between the steel flange (13) and the end connecting plate (15).

7. The steel connection structure of the seismic bracing according to claim 1, characterized in that, The central web (11) is provided with a plurality of pentagram combination holes (4), which are distributed along the length interval of the central web (11).

8. The steel connection structure of the seismic bracing according to claim 7, characterized in that, At least two pentagonal combination holes (4) are provided on both the inner web (21) and the outer web (51); the spacing of the pentagonal combination holes (4) on the central web (11), the inner web (21), and the outer web (51) is the same.

9. The steel connection structure of the seismic bracing according to claim 1, characterized in that, The cross-section of the pentagonal part (312) is pentagonal.

10. The steel connection structure of the seismic bracing according to claim 9, characterized in that, The pentagonal part (312) engages with at least one of the following: the pentagonal combination hole (4) on the central web (11), the pentagonal combination hole (4) on the inner web (21), and the pentagonal combination hole (4) on the outer web (51).

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