CN210621938U - Node connection structure for realizing bidirectional sliding in truss structure - Google Patents
Node connection structure for realizing bidirectional sliding in truss structure Download PDFInfo
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- CN210621938U CN210621938U CN201921013378.XU CN201921013378U CN210621938U CN 210621938 U CN210621938 U CN 210621938U CN 201921013378 U CN201921013378 U CN 201921013378U CN 210621938 U CN210621938 U CN 210621938U
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Abstract
The utility model discloses a be arranged in truss structure to realize two-way gliding nodal connection structure, include: a roof structure having a first connection; a gable structure having a second connection portion; the connecting node comprises a first ring arm and a second ring arm which are mutually buckled along a first direction, and a limiting part which is arranged on the first ring arm and/or the second ring arm and is used for limiting the first ring arm and the second ring arm to move relatively; the first ring arm is connected with the first connecting part, and the second ring arm is connected with the second connecting part; a first sliding space and a second sliding space for the first annular arm and the second annular arm to slide relatively along the second direction and the third direction are formed between the two support arms of the first annular arm and the second annular arm respectively. But through the node structure design of two-way slip of first ring arm and second ring arm, released these two ascending moment of flexure in direction, roof structure and gable structure warp each other in the direction of not power transmission and do not influence, and power transmission is more direct high-efficient, has reduced the steel consumption, has reduced engineering cost.
Description
Technical Field
The utility model relates to a large-span steel construction technical field, concretely relates to be arranged in truss structure to realize two-way slip's nodal connection structure.
Background
In steel structure engineering, a node is a pivot for connecting rod pieces and transferring force of a structure, the design principle is that the connection is direct, the force transfer is efficient, and particularly, the calculation model is supposed to be consistent with the actual engineering, so that the potential safety hazard of the engineering exists, and the key of the structural design is realized.
In the design of a large-span roof, the connection between the roof and the gable is usually designed to be rigid connection, namely, six degrees of freedom are coupled and the deformation is consistent, the connection design is simple, but the roof and the gable are two stress systems with great rigidity difference, so that the local bending moment is large, the cross section of a rod is large, the steel consumption is high, the installation is complex, and the construction cost is high.
Therefore, a node connection structure which is simple and efficient in force transmission structure, small in steel consumption and convenient to construct is required to be designed and applied to a connection structure of a roof and a gable wall in a large-span roof design.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art gable and the gable that the biography power system between the gable exists with the gable warp unanimous, local moment of flexure is big, the node passes the technical problem that the power structure is complicated inefficiency to a node connection structure who is arranged in realizing two-way slip among the truss structure is provided.
In order to solve the technical problem, the technical scheme of the utility model as follows:
a nodal connection structure for effecting bi-directional sliding in a truss structure, comprising:
a roof structure having a first connection;
a gable structure having a second connection portion;
the connecting node comprises a first ring arm and a second ring arm which are mutually buckled along a first direction, and a limiting piece which is arranged on the first ring arm and/or the second ring arm and is used for limiting the relative movement of the first ring arm and the second ring arm along the first direction; the two support arms of the first ring arm are connected with the first connecting part, and the two support arms of the second ring arm are connected with the second connecting part; a first sliding space for the first annular arm and the second annular arm to slide relatively in the second direction is formed between the two support arms of the first annular arm, and a second sliding space for the first annular arm and the second annular arm to slide relatively in the third direction is formed between the two support arms of the second annular arm.
Furthermore, two support arms of the second annular arm are hinged to two corresponding end portions of the second connecting portion through pin shafts respectively.
Further, the first direction, the second direction and the third direction are perpendicular to each other two by two.
Further, the first ring arm, the second ring arm and the limiting part are all made of box-type columns.
Furthermore, the limiting member is fixedly connected between the two support arms of the second ring arm.
Furthermore, friction reducing structures are arranged on contact surfaces of the first ring arm, the second ring arm and the limiting piece.
Further, the friction reducing structure comprises a stainless steel plate arranged on the first ring arm and the second ring arm or the limiting piece, and a polytetrafluoroethylene plate arranged on the contact surfaces of the second ring arm and the limiting piece and the first ring arm.
Further, the first connecting portion is a welding ball arranged on the roof structure, and the two support arms of the first annular arm are welded and fixed on the welding ball through a rod piece.
Furthermore, the welding ball is welded and fixed between two adjacent chord members of the roof structure, and a plurality of inclined rods of the roof structure are also welded and fixed on the welding ball.
Furthermore, the second connecting portion are two connecting pieces fixed to an upper chord of the gable structure, and the pin shaft penetrates through the support arm of the second annular arm and the connecting pieces to achieve hinging of the support arm and the connecting pieces.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a node connection structure for realizing two-way slip in truss structure, through the node structure design that can two-way slip of first ring arm and second ring arm, released the moment of flexure in these two directions, reduced the member cross-section requirement to gable structure, reduce and use the steel volume; in addition, the first ring arm and the second ring arm are mutually buckled in the first direction and limited by the limiting part to move relatively, so that the wind load of the gable structure in the first direction can be directly transmitted to the roof structure through the connecting node, the roof structure and the gable structure are not influenced by each other in the direction of no transmission, and the transmission is more direct and efficient; the connecting joint has the advantages of simple and efficient force transmission, small steel consumption, convenient construction and low engineering cost.
2. The utility model provides a be arranged in truss structure to realize two-way gliding node connection structure, the mode of connected node's second ring arm on the second connecting portion of articulated connection of round pin axle, with the cooperation of the node structure that can two-way slip of first ring arm and second ring arm, can release roof structure and the three ascending moment of flexure of gable structural connection department three side, avoid producing the problem of design difficulty because the local moment of flexure that two structure system rigidity differences arouse greatly.
3. The utility model provides a be arranged in truss structure to realize two-way gliding nodal connection structure, connected node can be prefabricated in the mill to structural at house cap structure and gable in on-the-spot ground welding, high altitude erection pin axle does not have high altitude welding, construction convenience, and construction quality is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an isometric view of a bidirectional sliding hinge connection node provided in an embodiment of the present invention;
fig. 2 is a plan view of a bidirectional sliding hinge joint provided in an embodiment of the present invention;
fig. 3 is a vertical layout view of the bidirectional sliding hinge connection node provided in the embodiment of the present invention on the a-a plane in fig. 2;
fig. 4 is a vertical layout diagram of a plane B-B of the bidirectional sliding hinged connection node provided in the embodiment of the present invention in fig. 2.
Description of reference numerals: 1. a roof structure; 11. a first connection portion; 2. a gable structure; 21. a second connecting portion; 3. connecting the nodes; 31. a first loop arm; 32. a second loop arm; 33. a limiting member; 4. a pin shaft; 5. a friction reducing structure; 51. a stainless steel plate; 52. a polytetrafluoroethylene sheet.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
In the steel structure design of a large-span roof, a roof structure 1 is required to bear the wind load and the dead weight of a roof, and the force is directly transmitted to a foundation through a vertical force bearing component; the gable structure 2 is often designed to be a self-supporting structure, and besides bearing the self weight, the horizontal wind load is transmitted to the roof structure 1, but the vertical load of the roof structure 1 is not borne, and the deformation of the roof structure 1 and the gable structure 2 in the direction of non-transmission needs to be structural design without mutual influence.
A node connecting structure for realizing bidirectional sliding in a truss structure as shown in fig. 1-4 comprises a roof structure 1, a gable structure 2 and a connecting node 3. Wherein the roof structure 1 has a first connection portion 11, the gable structure 2 has a second connection portion 21, and the connection node 3 is connected between the first connection portion 11 and the second connection portion 21.
Specifically, the connection node 3 includes a first ring arm 31 and a second ring arm 32 that are engaged with each other along the first direction, and a limiting member 33 that is disposed on the first ring arm 31 and/or the second ring arm 32 and is used for limiting relative movement of the first ring arm 31 and the second ring arm 32 along the first direction. The two arms of the first loop arm 31 are connected to the first connection portion 11, and the two arms of the second loop arm 32 are connected to the second connection portion 21. A first sliding space for the first annular arm 31 and the second annular arm 32 to slide relatively in the second direction is formed between the two support arms of the first annular arm 31, and a second sliding space for the first annular arm 31 and the second annular arm 32 to slide relatively in the third direction is formed between the two support arms of the second annular arm 32.
The first annular arm 31 and the second annular arm 32 are buckled with each other in the first direction and limited by the limiting part 33 to move relatively, so that the wind load of the gable structure 2 in the first direction can be directly transmitted to the roof structure 1 through the connecting node 3, and the transmission is more direct and efficient; meanwhile, the first annular arm 31 and the second annular arm 32 can slide relatively along the second direction and the third direction, so that the deformation of the roof structure 1 and the deformation of the gable structure 2 in the two directions are not influenced mutually, and the bending moments in the two directions are released, thereby reducing the requirements on the section of the rod piece of the gable structure 2 and reducing the steel consumption of the large-span roof steel structure engineering.
In the present embodiment, the first ring arm 31, the second ring arm 32 and the stopper 33 are made of box-shaped columns. The box-type column is composed of four plates, four fillet welds are designed into two forms of a full penetration groove and a local welding head groove in a segmented mode according to strength requirements, a transverse partition plate is arranged in the box-type column, a main transverse partition plate and a web plate are welded by adopting melting nozzle electroslag welding, a common transverse partition plate and a cover covering plate are welded in three sides of the box, a bracket and an eye plate which are vertically supported and connected with a main beam secondary beam are arranged at each elevation on the outer side of the box-type column, and the column is connected with the column in a welding and jacking combined mode. The connecting node 3 made of the box-shaped column has the advantages of high strength, light weight, uniform material, good toughness, convenience in installation and the like. In other embodiments, the first ring arm 31, the second ring arm 32, and the stopper 33 may be replaced with an H-shaped column, a steel pipe column, or the like.
In the present embodiment, the first loop arm 31 is arranged vertically, and the second loop arm 32 is arranged horizontally. The first direction, the second direction and the third direction are mutually vertical pairwise. In this embodiment, the first direction is taken as the Y-axis direction, the second direction is taken as the Z-axis direction, and the third direction is taken as the X-axis direction. Gable structure 2 sets up along the XZ plane, and roof structure 1 sets up along the XY plane, and the Y axle direction is gable structure 2 and roof structure 1's direct biography power direction. So set up, the locating part 33 can restrain first ring arm 31 and second ring arm 32 and take place along the ascending displacement of Y axle direction to can make the horizontal wind load on the Y axle direction that gable structure 2 bore directly transmit to through connected node 3 direct biography power to roof structure 1, gable structure 2 and roof structure 1 do not influence each other in the deformation range of certain displacement volume in the direction (X axle direction, Z axle direction and the resultant force direction of X axle and Z axle) that does not transmit power in addition. In addition, because the gable structure 2 of the node connection structure does not need to bear the vertical load of the roof structure 1, the requirements on the section of the rod piece of the gable structure 2 can be reduced, the steel consumption of the truss structure is reduced, and the engineering cost is reduced. In other embodiments, the first ring arm 31 and the second ring arm 32 may also be arranged in other directions as long as the force transmission direction between the first ring arm 31 and the second ring arm 32 is in a horizontal direction; also, the second direction and the third direction may not be perpendicular to each other as long as both directions are perpendicular to the first direction.
In the present embodiment, the two arms of the second ring arm 32 are hinged to the two corresponding ends of the second connecting portion 21 by the pin 4. The second connecting portion 21 is two connecting pieces fixed on the upper chord of the gable structure 2, and the pin 4 penetrates through the support arm and the connecting pieces of the second annular arm 32 to realize the hinge joint of the two. The second ring arm 32 and the second connecting portion 21 are connected in a hinged manner by the pin 4, so that the gable structure 2 and the roof structure 1 can rotate around the pin 4 in the axial direction (i.e., the X-axis direction), and the bending moment in the X-axis direction is released.
In this embodiment, the first annular arm 31 is provided with a first sliding space between the two support arms for the second annular arm 32 to slide along the Z axis, so as to release the bending moment of the connection node 3 in the Z axis direction; a second sliding space for the first annular arm 31 to slide along the X axis is reserved between the two support arms of the second annular arm 32, so that the bending moment of the connecting node 3 on the X axis can be released; thereby, the problem of overlarge local bending moment of the connecting node 3 between the gable structure 2 and the roof structure 1 is avoided.
Specifically, the length of the first sliding space in the Z-axis direction and the length of the second sliding space in the X-axis direction are determined from the displacement amounts of the roof structure 1 and the gable structure 2 in these two directions calculated by the model.
In the present embodiment, the first connecting portion 11 is a solder ball provided on the roof structure 1, and the two arms of the first ring arm 31 are fixed to the solder ball by a bar welding. The welding balls are welded and fixed between two adjacent chord members of the roof structure 1, and a plurality of inclined rods of the roof structure 1 are also welded and fixed on the welding balls. The structural design that the first annular arm 31 is welded and fixed on the welding ball can bear the acting force transmitted by the chord member and the diagonal member more directly.
In this embodiment, the limiting member 33 is fixedly connected between two arms of the second loop arm 32, and is used to limit the relative displacement of the first loop arm 31 and the second loop arm 32 along the Y-axis direction, so as to facilitate the direct force transmission between the first loop arm 31 and the second loop arm 32 by the acting force in the Y-axis direction, and improve the force transmission efficiency.
Furthermore, the friction reducing structure 5 is disposed on the contact surface between the first ring arm 31 and the second ring arm 32, and the contact surface between the first ring arm 31 and the limiting member 33. The friction reducing structure 5 includes a stainless steel plate 51 disposed on the first and second ring arms 31 and 32 or the stopper 33, and a teflon plate 52 disposed on the contact surfaces of the second ring arm 32 and the stopper 33 with the first ring arm 31. When the first ring arm 31, the second ring arm 32 and the stopper 33 slide relative to each other, the tetrafluoroethylene plate and the stainless steel plate 51 are provided to reduce the friction therebetween and ensure effective sliding.
In the construction process that roof structure 1 and gable structure 2 connect through connected node 3, connected node 3 welds on roof structure 1 subaerial, because gable structure 2 does not provide the vertical braces of roof structure 1, so roof structure 1 installation need not set up the bed-jig, treat gable structure 2 location back, at high altitude construction pin axle 4, can realize roof structure 1 and gable structure 2's connection, do not have the welding at the high altitude, construction convenience safety.
To sum up, the embodiment of the present invention provides a node connection structure for realizing bidirectional sliding in a truss structure, which adopts a structural design that a first annular arm 31 and a second annular arm 32 are mutually buckled in the Y-axis direction and are limited by a limiting member 33 to move relatively, so that the wind load of a gable structure 2 in the Y-axis direction can be directly transmitted to a roof structure 1 through a connection node 3, and the transmission is more direct and efficient; meanwhile, the first annular arm 31 and the second annular arm 32 can slide relatively along the X-axis direction and the Y-axis direction, so that the deformation of the roof structure 1 and the deformation of the gable structure 2 in the two directions are not influenced mutually, bending moments in the two directions are released, the second annular arm 32 is hinged to the second connecting part 21 of the gable structure 2, the bending moment in the Y-axis mode is released, the requirements on the section of a rod piece of the gable structure 2 can be reduced, the steel consumption is reduced, and the engineering cost is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. A nodal connection structure for achieving bi-directional sliding in a truss structure, comprising:
a roof structure (1) having a first connection portion (11);
a gable structure (2) having a second connection portion (21);
the connecting node (3) comprises a first ring arm (31) and a second ring arm (32) which are buckled with each other along a first direction, and a limiting piece (33) which is arranged on the first ring arm (31) and/or the second ring arm (32) and used for limiting the relative movement of the first ring arm (31) and the second ring arm (32) along the first direction; two support arms of the first annular arm (31) are connected with the first connecting part (11), and two support arms of the second annular arm (32) are connected with the second connecting part (21); a first sliding space for relative sliding of the first annular arm (31) and the second annular arm (32) in the second direction is formed between the two support arms of the first annular arm (31), and a second sliding space for relative sliding of the first annular arm (31) and the second annular arm (32) in the third direction is formed between the two support arms of the second annular arm (32).
2. The nodal connection structure for bi-directional sliding in truss structures, according to claim 1, wherein the two arms of the second loop arm (32) are hinged to the two corresponding ends of the second connection portion (21) by a pin (4).
3. The node connection structure for realizing bidirectional sliding in a truss structure as claimed in claim 1, wherein the first direction, the second direction and the third direction are perpendicular to each other two by two.
4. The nodal connection structure for bi-directional sliding in truss structure according to claim 1, wherein said first loop arm (31), said second loop arm (32) and said stop member (33) are made of box-type columns.
5. The nodal connection structure for bi-directional sliding in truss structures as claimed in claim 1, wherein said stop member (33) is fixedly connected between two arms of said second loop arm (32).
6. The nodal connection structure for bi-directional sliding in truss structure according to claim 5, wherein the first ring arm (31) and the second ring arm (32) are provided with friction reducing structures (5) on the contact surface with the stop member (33).
7. The nodal connection structure for bi-directional sliding in truss structure according to claim 6, wherein said friction reducing structure (5) comprises a stainless steel plate (51) disposed on the first ring arm (31) and the second ring arm (32) or the stopper (33), and a polytetrafluoroethylene plate (52) disposed on the contact surface of the second ring arm (32) and the stopper (33) with the first ring arm (31).
8. The nodal connection structure for bi-directional sliding in truss structure according to claim 1, wherein said first connection portion (11) is a welding ball provided on said roof structure (1), and two arms of said first ring arm (31) are welded and fixed on said welding ball by a rod.
9. The node connecting structure for realizing bidirectional sliding in a truss structure according to claim 8, wherein the welding balls are welded and fixed between two adjacent chords of the roof structure (1), and a plurality of diagonal rods of the roof structure (1) are also welded and fixed on the welding balls.
10. The nodal connection structure for bi-directional sliding in truss structure according to claim 2, wherein the second connection portion (21) is two connection pieces fixed on the upper chord of the gable structure (2), and the pin (4) penetrates through the support arm of the second ring arm (32) and the connection pieces to realize the hinge joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921013378.XU CN210621938U (en) | 2019-07-01 | 2019-07-01 | Node connection structure for realizing bidirectional sliding in truss structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921013378.XU CN210621938U (en) | 2019-07-01 | 2019-07-01 | Node connection structure for realizing bidirectional sliding in truss structure |
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| CN210621938U true CN210621938U (en) | 2020-05-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397168A (en) * | 2019-07-01 | 2019-11-01 | 华电重工股份有限公司 | A kind of node connecting structure for realization Bidirectional slide in truss structure |
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2019
- 2019-07-01 CN CN201921013378.XU patent/CN210621938U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397168A (en) * | 2019-07-01 | 2019-11-01 | 华电重工股份有限公司 | A kind of node connecting structure for realization Bidirectional slide in truss structure |
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