An earthquake-resistant connecting joint of a steel structure

Abstract

The application relates to the technical field of building steel structures, in particular to an anti-seismic connecting joint of a steel structure, which comprises a connecting ring, a steel wire rope cable and at least three connecting pieces; the at least three connecting pieces are distributed around the circumferential direction of the connecting ring, each connecting piece comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod of the same connecting piece are hinged through a first hinge shaft, and the first hinge shaft is connected with the steel wire rope cable; the first connecting rod and the second connecting rod of the at least three connecting pieces are alternately distributed around the circumferential direction of the connecting ring, the first connecting rod is hinged with the second connecting rod of the adjacent connecting piece through a second hinge shaft, the first hinge shaft and the second hinge shaft both extend along the axial direction of the connecting ring, the second hinge shaft can rotate around the circumferential direction of the connecting ring, the strength of the second hinge shaft is smaller than that of the first hinge shaft, the anti-seismic connecting joint can adapt to different numbers of steel wire rope cables, has a certain universality, and has good anti-seismic performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building steel structure, and particularly relates to an anti-seismic connecting joint of steel structure. BACKGROUND

[0002] In steel structure buildings, cables are often used. The cables can resist horizontal loads such as wind load and earthquake force, thereby reducing the deformation of the steel structure and making the steel structure building more stable.

[0003] Patent file with the announcement number CN223074906U discloses a cable space crossing device, which comprises a cable connector, the two ends of the cable connector are detachably connected with connecting parts for being fixedly connected with steel cables, and a hollow circular long hole is formed in the middle part of the cable connector, and the hollow circular long hole is used for passing another steel cable. However, this cable structure cannot be applied to different numbers of steel wire rope cables, and the universality is poor. SUMMARY

[0004] Therefore, it is necessary to provide an anti-seismic connecting joint of steel structure aiming at the technical problem of poor universality of the current cable connector.

[0005] The above-mentioned purpose is realized by the following technical scheme:

[0006] An anti-seismic connecting joint of steel structure comprises a connecting ring, a steel wire rope cable and at least three connecting pieces. The at least three connecting pieces are distributed around the circumferential direction of the connecting ring. Each connecting piece comprises a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod of the same connecting piece are hingedly connected through a first hinge shaft. The first hinge shaft is connected with the steel wire rope cable. The first connecting rod and the second connecting rod of the at least three connecting pieces are alternately distributed around the circumferential direction of the connecting ring. The first connecting rod is hingedly connected with the second connecting rod of the adjacent connecting piece through a second hinge shaft. The first hinge shaft and the second hinge shaft both extend along the axial direction of the connecting ring. The second hinge shaft can rotate around the circumferential direction of the connecting ring. The strength of the second hinge shaft is less than that of the first hinge shaft.

[0007] Further, an elastic sheet is arranged between the two adjacent connecting pieces. One end of the elastic sheet is connected with the first connecting rod of one of the connecting pieces, and the other end of the elastic sheet is connected with the second connecting rod of the other connecting piece. The elastic sheet can keep the two adjacent connecting pieces at a set included angle.

[0008] Further, the connecting ring comprises coaxially detachable first connecting ring and second connecting ring; the first connecting ring and the second connecting ring are the same structure and are sequentially arranged along the axial direction, the opposite end faces of the first connecting ring and the second connecting ring are both provided with a tapered ring groove, the tapered ring groove is coaxially arranged with the first connecting ring or the second connecting ring, the two ends of the second connecting shaft along the length direction are respectively located in the tapered ring groove of the first connecting ring and the tapered ring groove of the second connecting ring, and the tapered ring groove makes the two ends of the second connecting shaft along the length direction bend away from the axis of the first connecting ring or the second connecting ring.

[0009] Further, the outer peripheral edge of the opposite end face of the first connecting ring and the second connecting ring forms a flared structure, when the second connecting shaft is subjected to a horizontal pulling force, the second connecting shaft extrudes the flared structure through the tapered ring groove, so that the flared structure is reduced to clamp the first connecting rod and the second connecting rod.

[0010] Further, the middle part of the first connecting ring and the second connecting ring is provided with a fixing plate, and the two fixing plates are detachably fixed and connected through bolts, the fixing plate is located on the opposite side of the first connecting ring or the second connecting ring, and the fixing plate protrudes from the opposite end face of the first connecting ring or the second connecting ring.

[0011] Further, the first connecting rod and the second connecting rod are the same structure, the first connecting rod and the second connecting rod both comprise an integral straight rod and a U-shaped connecting rod, the straight rod and the U-shaped connecting rod extend along the same straight line, and the straight rod can be inserted into the U-shaped connecting rod of another first connecting rod or second connecting rod.

[0012] Further, the straight rod is provided with a first connecting hole, the U-shaped connecting rod is provided with two coaxial second connecting holes, the first connecting hole and the second connecting hole can correspond, so as to insert the first connecting shaft or the second connecting shaft, the second connecting shaft is provided with two retaining rings, the outer periphery of each second connecting hole is coaxially provided with a avoiding groove, the retaining ring and the avoiding groove one-to-one correspond, and the retaining ring and the avoiding groove are in axial stop cooperation.

[0013] Further, the middle part of the first connecting rod and the second connecting rod is provided with a threaded hole, the axis of the threaded hole is perpendicular to the axis of the connecting ring, a screw rod is provided on the elastic sheet, and the screw rod and the threaded hole can be threadedly connected.

[0014] Further, the steel wire rope is provided with a cable head, and the cable head is hinged with the first connecting shaft.

[0015] Further, the number of the connecting pieces is four.

[0016] The beneficial effects of the present application are:

[0017] The seismic connection node for steel structures provided by this invention has several advantages. First, the number of connecting parts on the connecting ring can be adjusted according to the number of wire rope cables, thus accommodating different numbers of wire rope cables and exhibiting a certain degree of versatility. Furthermore, when the seismic connection node encounters seismic loads, the second hinge shaft can rotate around the circumference of the connecting ring, or the second hinge shaft may break, thereby eliminating part of the seismic load and demonstrating good seismic performance.

[0018] Secondly, multiple elastic plates allow multiple connectors to be evenly distributed on the connecting ring, thereby ensuring a uniform distribution of the tension force exerted by each wire rope on the connecting ring and improving the stability of the seismic connection nodes of the steel structure.

[0019] Third, when a wire rope cable is subjected to a large tension, the second hinge shaft squeezes the flared structure through the conical ring groove, causing the flared structure to shrink and thus clamping the first connecting rod and the second connecting rod. This can enhance the stability of the wire rope cable and the connecting ring, and prevent the failure of the seismic connection node of the steel structure.

[0020] Fourth, when the second hinge shaft breaks, that is, when the seismic connection node of the steel structure encounters a large seismic load, the seismic connection node of the steel structure is in a failure state. At this time, the two ends of each second hinge shaft along the length direction are sheared with the conical annular groove, so that the two ends of the second hinge shaft along the length direction are cut off. However, the remaining part of the second hinge shaft can still connect the first connecting rod with the second connecting rod of the adjacent connecting member, so that multiple wire rope cables can still maintain the connection state and maintain the stability of the seismic connection node of the steel structure. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of a seismic-resistant connection node of a steel structure provided in an embodiment of the present invention;

[0022] Figure 2 This is a top view schematic diagram of a seismic connection node of a steel structure provided in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Sectional view of AA;

[0024] Figure 4 This is an exploded view of a seismic-resistant connection node of a steel structure provided in an embodiment of the present invention.

[0025] Figure 5 This is a structural schematic diagram of a single connector in a seismic-resistant connection node of a steel structure provided in an embodiment of the present invention;

[0026] Figure 6 for Figure 5 A top-down view;

[0027] Figure 7 forFigure 6 B-B cross-sectional view;

[0028] Figure 8 A schematic view of a steel structure seismic connection node provided by an embodiment of the present application in a failure state;

[0029] Figure 9 A schematic view of a steel structure seismic connection node provided by another embodiment of the present application in a failure state.

[0030] wherein:

[0031] 101, first connecting rod; 102, second connecting rod; 103, elastic sheet; 104, first hinged shaft; 105, first connecting ring; 106, second connecting ring; 107, second hinged shaft; 108, check ring; 109, bolt; 110, fixed plate; 111, conical ring groove; 112, avoiding groove; 113, flared structure; 200, steel wire rope cable; 201, cable head; 202, nut. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below by embodiments, and combined with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0033] The serial numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and have no any order or technical meaning. The "connection" and "coupling" of the present application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0035] As Figures 1 to 9 shown in the drawings, the embodiment of the application provides an anti-seismic connecting joint of a steel structure, which comprises a connecting ring, a steel wire cable 200 and at least three connecting members; the at least three connecting members are distributed around the circumferential direction of the connecting ring, each of the connecting members comprises a first connecting rod 101 and a second connecting rod 102, the first connecting rod 101 and the second connecting rod 102 of the same connecting member are hinged through a first hinge shaft 104, the first hinge shaft 104 is connected with the steel wire cable 200; the first connecting rod 101 and the second connecting rod 102 of the at least three connecting members are alternately distributed around the circumferential direction of the connecting ring, the first connecting rod 101 is hinged with the second connecting rod 102 of the adjacent connecting member through a second hinge shaft 107, the first hinge shaft 104 and the second hinge shaft 107 both extend along the axial direction of the connecting ring, the second hinge shaft 107 can rotate around the circumferential direction of the connecting ring, and the strength of the second hinge shaft 107 is less than that of the first hinge shaft 104.

[0036] In this way, the number of the connecting members on the connecting ring can be adjusted according to the number of the steel wire cables 200, so that the anti-seismic connecting joint of the steel structure can adapt to different numbers of the steel wire cables 200 and has a certain universality. When the anti-seismic connecting joint of the steel structure encounters a seismic load, the second hinge shaft 107 can rotate around the circumferential direction of the connecting ring, or the second hinge shaft 107 breaks, so that part of the seismic load is eliminated, and the anti-seismic performance is good.

[0037] Further, an elastic sheet 103 is arranged between the two adjacent connecting members, one end of the elastic sheet 103 is connected with the first connecting rod 101 of one of the connecting members, the other end of the elastic sheet 103 is connected with the second connecting rod 102 of the other connecting member, and the elastic sheet 103 can keep the two adjacent connecting members at a set included angle.

[0038] In this way, the multiple elastic sheets 103 can make the multiple connecting members uniformly distributed on the connecting ring, so that the pulling force of each steel wire cable 200 on the connecting ring is uniformly distributed, and the stability of the anti-seismic connecting joint of the steel structure is improved.

[0039] Further, the connecting ring comprises coaxially detachable first connecting ring 105 and second connecting ring 106; the first connecting ring 105 and the second connecting ring 106 are the same structure and arranged along the axial direction in sequence, the opposite end faces of the first connecting ring 105 and the second connecting ring 106 are provided with tapered ring grooves 111, the tapered ring grooves 111 are coaxially arranged with the first connecting ring 105 or the second connecting ring 106, the second articulated shaft 107 is located in the tapered ring grooves 111 of the first connecting ring 105 and the second connecting ring 106 at the two ends along the length direction respectively, the tapered ring grooves 111 make the two ends of the second articulated shaft 107 along the length direction bend away from the axis of the first connecting ring 105 or the second connecting ring 106. When the second articulated shaft 107 is not installed into the tapered ring grooves 111, the second articulated shaft 107 is a straight rod, after being installed into the two tapered ring grooves 111, the end of the second articulated shaft 107 is bent. In this way, the second articulated shaft 107 cannot rotate, and can only rotate along the tapered ring grooves 111.

[0040] As shown in Figure 3 The outer peripheral edge of the opposite end face of the first connecting ring 105 and the second connecting ring 106 forms a flared structure 113, when the second articulated shaft 107 is subjected to a horizontal pulling force, the second articulated shaft 107 extrudes the flared structure 113 through the tapered ring groove 111, so that the flared structure 113 is reduced to clamp the first connecting rod 101 and the second connecting rod 102.

[0041] In this way, when a certain steel wire rope cable 200 is subjected to a larger pulling force, the second articulated shaft 107 extrudes the flared structure 113 through the tapered ring groove 111, so that the flared structure 113 is reduced to clamp the first connecting rod 101 and the second connecting rod 102, which can enhance the stability of the steel wire rope cable 200 and the connecting ring, and avoid the failure of the seismic connection joint of the steel structure.

[0042] Further, the middle part of the first connecting ring 105 and the second connecting ring 106 is provided with a fixed plate 110, the two fixed plates 110 are detachably fixed and connected by bolts 109, the fixed plate 110 is located on the opposite side of the first connecting ring 105 or the second connecting ring 106, and the fixed plate 110 protrudes from the opposite end face of the first connecting ring 105 or the second connecting ring 106.

[0043] The first connecting ring 105 and the second connecting ring 106 are detachably connected by the bolt 109, so that the second hinge shaft 107 is installed into the conical ring groove 111. The fixed plate 110 protrudes from the opposite end surface of the first connecting ring 105 or the second connecting ring 106, so that the fixed plate 110 does not easily affect the deformation of the flared structure 113. After the first connecting ring 105 and the second connecting ring 106 are connected, the two fixed plates 110 can be in contact, so that the first connecting ring 105 and the second connecting ring 106 can just accommodate the first connecting rod 101 and the second connecting rod 102 between the opposite end surfaces.

[0044] Further, the first connecting rod 101 and the second connecting rod 102 have the same structure, and each of the first connecting rod 101 and the second connecting rod 102 includes a straight rod and a U-shaped connecting rod which are integrally formed and extend along the same line, and the straight rod can be inserted into the U-shaped connecting rod of the other first connecting rod 101 or second connecting rod 102. The first connecting rod 101 and the second connecting rod 102 have the same structure, so that the connecting member is easy to process. In other embodiments, the first connecting rod 101 and the second connecting rod 102 are straight rod structures.

[0045] As shown in Figure 4 the U-shaped connecting rod of the first connecting rod 101 is hinged to the straight rod of the second connecting rod 102 of the same connecting member by the first hinge shaft 104, and the straight rod of the first connecting rod 101 is hinged to the U-shaped connecting rod of the second connecting rod 102 of the adjacent connecting member by the second hinge shaft 107.

[0046] Further, the straight rod is provided with a first hinge hole, and the U-shaped connecting rod is provided with two coaxial second hinge holes, the first hinge hole and the second hinge hole can correspond, so as to be inserted into the first hinge shaft 104 or the second hinge shaft 107; the second hinge shaft 107 is sleeved with two retaining rings 108, and the outer periphery of each second hinge hole is coaxially provided with an avoiding groove 112, the retaining ring 108 and the avoiding groove 112 correspond one by one, and the retaining ring 108 and the avoiding groove 112 are in axial stop cooperation.

[0047] When the second hinge shaft 107 is inserted into the first hinge hole and the second hinge hole, the retaining ring 108 makes the second hinge shaft 107 not to be separated from the first hinge hole and the second hinge hole, so that the second hinge shaft 107 does not separate from the first connecting rod 101 and the second connecting rod 102.

[0048] As shown in Figure 8As shown, when the second hinged shaft 107 is broken, that is, the seismic connection joint of the steel structure encounters a larger seismic load, at this time, the seismic connection joint of the steel structure is in a failure state, the two ends of the second hinged shaft 107 along the length direction are sheared with the tapered ring groove 111, the two ends of the second hinged shaft 107 along the length direction are sheared, and the remaining part of the second hinged shaft 107 can still connect the first connecting rod 101 and the second connecting rod 102 of the adjacent connecting piece, so that the plurality of steel wire cable 200 can still remain in a connected state, and the stability of the seismic connection joint of the steel structure is maintained.

[0049] Further, the middle positions of the first connecting rod 101 and the second connecting rod 102 are provided with threaded holes, the axis of the threaded hole is perpendicular to the axis of the connecting ring, a threaded rod is provided on the elastic sheet 103, and the threaded rod can be screwed with the threaded hole. In this way, the elastic sheet 103 is convenient to disassemble and assemble.

[0050] Further, the steel wire cable 200 is provided with a cable head 201, and the cable head 201 is hinged with the first hinged shaft 104. One end of the first hinged shaft 104 is threadedly connected with a nut 202, and the cable head 201 and the first hinged shaft 104 are detachably connected through the nut 202.

[0051] Further, the number of the connecting pieces is four. In other embodiments, the number of the connecting pieces is three or more than five. As shown, Figure 9 Further, the connecting piece is provided with six.

[0052] In combination with the above embodiment, the use principle and working process of the embodiment of the present application are as follows:

[0053] The first connecting rod 101 and the second connecting rod 102 are hinged through the first hinged shaft 104 and connected with the cable head 201 of the steel wire cable 200, then the first connecting rod 101 and the second connecting rod 102 of the adjacent connecting piece are hinged through the second hinged shaft 107, the plurality of second hinged shafts 107 are installed into the tapered ring groove 111 of the first connecting ring 105 and the tapered ring groove 111 of the second connecting ring 106, and finally the first connecting ring 105 and the second connecting ring 106 are fixedly connected through the bolt 109.

[0054] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0055] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A seismic-resistant connection node for a steel structure, characterized in that, Includes a connecting ring, a steel wire rope cable, and at least three connecting parts; At least three connectors are distributed around the circumference of the connecting ring. Each connector includes a first link and a second link. The first link and the second link of the same connector are hinged through a first hinge shaft, which is connected to the wire rope cable. At least three connecting members have first and second links alternately distributed around the circumference of a connecting ring. The first link is hinged to the second link of the adjacent connecting member through a second hinge axis. Both the first and second hinge axes extend along the axial direction of the connecting ring. The second hinge axis can rotate around the circumference of the connecting ring, and the strength of the second hinge axis is less than that of the first hinge axis.

2. The seismic connection node of the steel structure according to claim 1, characterized in that, An elastic plate is provided between two adjacent connectors. One end of the elastic plate is connected to the first link of one of the connectors, and the other end of the elastic plate is connected to the second link of the other connector. The elastic plate can keep the two adjacent connectors at a set angle.

3. The seismic connection node of the steel structure according to claim 2, characterized in that, The connecting ring includes a first connecting ring and a second connecting ring that are coaxially and detachably connected. The first connecting ring and the second connecting ring have the same structure and are arranged sequentially along their axial direction. Each of the opposite end faces of the first connecting ring and the second connecting ring is provided with a tapered annular groove. The tapered annular groove is coaxially arranged with the first connecting ring or the second connecting ring. The two ends of the second hinge shaft along the length direction are respectively located in the tapered annular groove of the first connecting ring and the tapered annular groove of the second connecting ring. The tapered annular groove causes the two ends of the second hinge shaft along the length direction to bend away from the axis of the first connecting ring or the second connecting ring.

4. The seismic connection node of the steel structure according to claim 3, characterized in that, A flared structure is formed at the outer peripheral edge of the opposite end face of the first connecting ring and the second connecting ring. When the second hinge shaft is subjected to a horizontal tension, the second hinge shaft squeezes the flared structure through the conical ring groove, causing the flared structure to shrink and thus clamping the first connecting rod and the second connecting rod.

5. The seismic connection node of the steel structure according to claim 4, characterized in that, Both the first connecting ring and the second connecting ring have a fixing plate in the middle. The two fixing plates are detachably fixed together by bolts. The fixing plate is located on the opposite side of the first connecting ring or the second connecting ring, and the fixing plate protrudes from the opposite end face of the first connecting ring or the second connecting ring.

6. The seismic connection node of the steel structure according to claim 5, characterized in that, The first link and the second link have the same structure. Both the first link and the second link include an integrally formed straight rod and a U-shaped link. The straight rod and the U-shaped link extend along the same straight line. The straight rod can be inserted into the U-shaped link of another first link or second link.

7. The seismic connection node of the steel structure according to claim 6, characterized in that, The straight rod is provided with a first hinge hole, and the U-shaped connecting rod is provided with two coaxial second hinge holes. The first hinge hole and the second hinge hole can correspond to each other, so that the first hinge shaft or the second hinge shaft can be inserted. Two retaining rings are sleeved on the second hinge shaft. The outer periphery of each second hinge hole is provided with a relief groove. The retaining ring and the relief groove correspond one-to-one, and the retaining ring and the relief groove are engaged in axial blocking fit of the second hinge hole.

8. The seismic connection node of the steel structure according to claim 2, characterized in that, Both the first and second connecting rods have threaded holes at their midpoints. The axis of the threaded holes is perpendicular to the axis of the connecting ring. A screw is threaded through the elastic plate, and the screw can be threaded into the threaded holes.

9. The seismic connection node of the steel structure according to claim 1, characterized in that, The wire rope cable is provided with a cable head, which is hinged to the first hinge shaft.

10. The seismic connection node of the steel structure according to claim 1, characterized in that, The number of connectors is four.

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