CN205171825U - Large -span assembly lattice formula purlin system with mortise type hub node - Google Patents
Large -span assembly lattice formula purlin system with mortise type hub node Download PDFInfo
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- CN205171825U CN205171825U CN201520849300.7U CN201520849300U CN205171825U CN 205171825 U CN205171825 U CN 205171825U CN 201520849300 U CN201520849300 U CN 201520849300U CN 205171825 U CN205171825 U CN 205171825U
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Abstract
The utility model provides a large -span assembly lattice formula purlin system with mortise type hub node has higher joint strength, and easy to maintain can guarantee to connect the reliability. The utility model discloses a two at least bracing pieces, the bracing piece is the linearity by a plurality of chord members and connects gradually and form, each it is on the bracing piece is parallel to each other and is in different straight lines, adjacent connect through a plurality of web members between the bracing piece, each through hub nodal connection between the chord member, the periphery wall of hub node has the recess that extends in its axial, the tip of chord member and the tip of web member all have with recess complex fin. The utility model discloses a hub node and chord member or web member pass through the recess and the fin forms the mortise type connection, can hold flexural square and shear force, has higher joint strength, forms stable purlin system, the structure that adopts the hub node can form approximate fixed connection has had the convenience that can dismantle the connection simultaneously concurrently.
Description
Technical field
The utility model relates to truss technology field, particularly relates to a kind of large span assembling lattice purlins with mortise and tenon type hub node.
Background technology
In structural steel design, the purlin as space enclosing structure is indispensable, and traditional steel purlin bar has two kinds: a kind of purlin being steel sheet clod wash and becoming C type or Z-type, i.e. steel flanged beam purlin; One adopts small-size angle iron or round steel by being welded to form trussed construction, i.e. lattice purlin.
Steel flanged beam purlin adopts cold bending thin wall C type or Z-shape steel, and its processing is convenient and swift.Due to second moment of area and the radius of gyration less, steel flanged beam purlin is used for the less steel work of span, and in the structure that span is longer, use can cause the waste of larger steel.
The upper lower edge of lattice purlin is made up of angle steel, middle with web member connection, and because its open web type constructs, second moment of area and the radius of gyration greatly, thus can make full use of the intensity of steel, reach the object of saving steel.Therefore, lattice purlins can make full use of angle steel (i.e. upper and lower string) and steel sheet (i.e. web member) as truss element system, the overall moment of inertia in cross section and the radius of gyration large, can play the mechanical property of material more fully, in longspan structure, economic effect is more obvious.But its processing mode adopts human weld to connect substantially, and web member spacing is closeer, the workload of splicing and welding is comparatively large, and quality not easily ensures.
Therefore, how to design a kind of large span assembling lattice purlins, to improve the bonding strength of rod member, ensure quality of connection, make maintenance more convenient, become the technical problem that those skilled in the art need solution at present badly.
Utility model content
The purpose of this utility model is to provide a kind of large span assembling lattice purlins with mortise and tenon type hub node, has higher bonding strength, is easy to safeguard, can ensures connection reliability.
For solving the problems of the technologies described above, the utility model provides a kind of large span assembling lattice purlins with mortise and tenon type hub node, comprise at least two support bars, described support bar is connected in sequence by some chord members are linearly, each described support bar is parallel to each other and is on different straight lines, is connected between adjacent described support bar by some web members; Connected by hub node between each described chord member, the periphery wall of described hub node has the groove extended in its axial direction, and the end of described chord member and the end of described web member all have the fin with described groove fit.
Large span assembling lattice purlins of the present utility model, is adopted hub node that some chord members are in turn connected to form support bar, and each support bar is parallel to each other, then connected by adjacent support bar by web member, form purlins; Hub node forms mortise and tenon type with chord member by groove and fin and is connected, and can bear bending and shearing, have higher bonding strength, form stable purlins; And web member is also connected on hub node, can ensure the connection reliability of adjacent supports bar; What is more important, adopts hub node can form the approximate structure be fixedly connected with, has had the convenience removably connected simultaneously concurrently, be conducive to the structure that those skilled in the art arrange purlins as required; And, because hub node can ensure connection reliability, without the need to arranging auxiliary tool, the structure of lattice can be formed, alleviating the weight of purlins.
Alternatively, described groove is serrated slot, and described serrated slot comprises the sawtooth of at least two distributions of the spaced radial at described hub node.
Alternatively, the two lateral walls of described serrated slot is equipped with sawtooth, and the derrated shaft on two side is to being symmetrical arranged.
Alternatively, the two ends of described chord member and the two ends of described web member all form described fin by flattening.
Alternatively, the two ends of described hub node are provided with gland, so that by each described chord member and described web member axial compression.
Alternatively, also comprise connector, described hub node has axially through connecting hole, and described connector runs through described connecting hole and is connected with the described gland of respective end with its two ends, to compress described gland.
Alternatively, comprise three described support bars, three connects into the triangular prism shape of hollow.
Alternatively, comprise four described support bars, four rectangular cylindrical connecting into hollow.
Alternatively, described web member comprises the diagonal web member being vertically connected to the vertical web rod between adjacent described support bar and being obliquely installed with relative described vertical web rod.
Accompanying drawing explanation
Fig. 1 provides by the utility model large span to assemble the plane structure schematic diagram of lattice purlins in the first detailed description of the invention;
Fig. 2 provides by the utility model large span to assemble the perspective view of lattice purlins in the second detailed description of the invention;
Fig. 3 provides by the utility model large span to assemble the perspective view of lattice purlins in the first detailed description of the invention;
Fig. 4 provides by the utility model large span to assemble the perspective view of a kind of set-up mode of hub node of lattice purlins;
Fig. 5 provides by the utility model large span to assemble the hub node of lattice purlins and the schematic diagram of chord member connection status.
In Fig. 1-5:
Support bar 1, chord member 11, web member 2, vertical web rod 21, diagonal web member 22, hub node 3, groove 31, gland 32, connector 33, connecting hole 34, fin 4.
Detailed description of the invention
Core of the present utility model is to provide a kind of large span assembling lattice purlins with mortise and tenon type hub node, has higher bonding strength, is easy to safeguard, can ensures connection reliability.
Below in conjunction with accompanying drawing, large span assembling lattice purlins the utility model to mortise and tenon type hub node 3 is specifically introduced, so that those skilled in the art's accurate understanding the technical solution of the utility model.
As herein described some be that exponential quantity is uncertain multiple, be generally more than three; And some expression quantity is uncertain, then, when adopting the number of the several parts of some expressions, can not be interpreted as that the number of these parts is equal.
First, second word such as grade as herein described, only in order to the same or similar plural parts of specification configuration or structure, does not represent certain particular determination to order.Axis as herein described and radial direction all with hub node 3 for reference.
As Figure 1-3, the utility model provides a kind of large span assembling lattice purlins, comprises at least two support bars 1, and support bar 1 is by the linearly arrangement of some chord members 11 and be in turn connected into direct rod shape, each support bar 1 can be parallel to each other, but is not on same straight line; Can be connected by some web members 2 between adjacent support bar 1, form the plane lattice purlins shown in Fig. 1, or the three-dimensional lattice purlins shown in Fig. 2 or Fig. 3.
Can be connected by hub node 3 between each chord member 11, the web member 2 between adjacent support bar 1 also can be connected with the hub node 3 on support bar 1.In detail, some grooves 31 can be set at the periphery wall of hub node 3, each groove 31 is in the axially extension of hub node 3, fin 4 can be processed to form in the end of the end of chord member 11 and web member 2, coordinated with the groove 31 of hub node 3 by fin 4, and then realize the connection of web member 2 between the connection of each chord member 11 and adjacent supports bar 1.Hereinafter by composition graphs 4 and Fig. 5, the hub node 3 adopt the utility model and the connection of hub node 3 and chord member 11, hub node 3 and web member 2 are described in detail.
Those skilled in the art can arrange the number of chord member 11 as required, to form the support bar 1 of Len req; Number and the connected mode of the web member 2 connecting support bar 1 can also be configured for as required, to control the bonding strength between support bar 1.
As shown in Figure 1, in a kind of detailed description of the invention, those skilled in the art only can arrange two support bars 1, two support bars 1 can be parallel to each other, and connecting some web members 2 between, each web member 2 can for the diagonal web member 22 be obliquely installed relative to two support bars 1, and diagonal web member 22 now can be end to end, namely one end of web member 2 can share a hub node 3 with previous web member 2, and the other end can share a hub node 3 with a rear web member 2.Adopt the end to end form of web member 2, make adjacent web member 2 jointly enclose triangular framing with the chord member 11 on wherein any one support bar 1, be specifically as follows equilateral triangle; On the length direction of whole support bar 1, each web member 2 can connect in corrugated successively.
Being appreciated that when arranging two support bars 1, the vertical web rod 21 perpendicular to two support bars 1 also can be adopted to realize the connection of two support bars 1; And, the type of attachment of web member 2 is not limited to above-mentioned wave structure, and each web member 2 can be connected between two support bars 1 in parallel to each other, also can arrange in X-type cross, other modes can also be adopted to arrange, as long as the connection of two support bars 1 can be realized.Also be not limited to all connect web member 2 on each hub node 3, the number of web member 2 and arranging density can adjust as required; The type of attachment of each web member 2 also can be inconsistent.
As shown in Figure 2, in the second detailed description of the invention, three support bars 1 can be set, be interconnected between two now adjacent support bars 1, form the column structure that three faces are gone along with sb. to guard him, the triangular prism shape of hollow as shown in Figure 2.The three-dimensional purlins of this triangular prism shape can bear larger moment of flexure and torsion, as the main support of structure, can have higher strength and stability.
In the present embodiment, the connection between adjacent supports bar 1 can adopt the embodiment shown in Fig. 1 to arrange, between adjacent support bar 1, form undulatory syndeton.Also the form that vertical web rod 21 and diagonal web member 22 coordinate can be adopted, namely the web member 2 that adjacent supports bar 1 connects can comprise vertical web rod 21 and diagonal web member 22, vertical web rod 21 is perpendicular to two support bars 1 to be connected, diagonal web member 22 is obliquely installed relative to vertical web rod 21 and two support bars 1, vertical web rod 21 and diagonal web member 22 can be end to end, namely both corresponding end are connected on same hub node 3, also can be arranged in a crossed manner.
As shown in Figure 3, in the third detailed description of the invention, four support bars, 1, four support bars 1 can be set and enclose the quadrangular shape forming hollow, be specifically as follows rectangular cylindrical structures.In four support bars 1, adjacent support bar 1 two one group forms four sides of rectangular cylindrical structures, wherein, adjacent supports bar 1 can adopt the web member 2 in the first detailed description of the invention shown in Fig. 1 to connect, and also can change according to the variation of web member 2 in the second detailed description of the invention mentioned above as required.In detail, the web member 2 in the present embodiment also can comprise vertical web rod 21 and diagonal web member 22, and arranges according to the form in the second detailed description of the invention.
Below in conjunction with Fig. 4 and Fig. 5, the hub node 3 adopt the utility model and the connection of chord member 11 and web member 2 are described in detail.
Hub node 3 can be the node of cylindrical or similar columniform hub-like, and hereinafter described axis is with hub node 3 for reference, and the axis of the wheel hub of hub node 3 is axis hereinafter described, and the radial direction of wheel hub is radial direction hereinafter described; In near the direction of hub node 3 axis being, the direction away from its axis is outward.
As shown in Figure 4 and Figure 5, described hub node 3 can comprise similar columned main body, and the periphery wall of main body is provided with some grooves 31, and groove 31, in the axially extension of hub node 3, specifically radially can be inwardly recessed by the periphery wall of hub node 3; The end of chord member 11 can adopt special die to flatten the fin 4 forming tabular, multiple fin 4 can be in turn connected to form wave structure, fin 4 can form Tenon with the groove 31 of hub node 3 and coordinate, to be connected as one by hub node 3 by each chord member 11, form the support bar 1 of direct rod shape.
Meanwhile, the two ends of hub node 3 are also provided with gland 32, as shown in Figure 5, gland 32 can cover the two ends at hub node 3, thus chord member 11 axial compression that will be installed in groove 31, avoid chord member 11 slippage vertically to go out in groove 31, realize chord member 11 and be connected with the reliable of hub node 3.
Being arranged so that of gland 32 can be protected the part that chord member 11 inserts groove 31, makes the material behavior of insertion portion unaffected, especially can make the fixing more reliable of insertion portion.
Wherein, certain angle also the radial direction of hub node 3 relatively can be departed from, as long as be inwardly recessed certain distance, to form the mounting groove for installing chord member 11 by the periphery wall of hub node 3 in the recessed direction of groove 31; In like manner, groove 31 can run through along the axis of hub node 3, also can only have certain axial length and not run through hub node 3, as long as can ensure that chord member 11 and groove 31 have enough contacts area.
Web member 2 of the present utility model can adopt the structure of similar chord member 11 to arrange, to be connected on each hub node 3.Namely the two ends of web member 2 also can be flattened and be formed fin 4, to coordinate with the groove 31 of hub node 3, form mortise and tenon type and connect, and then connected by two adjacent support bars 1.In like manner, when the two ends of hub node 3 are covered by gland 32, also can carry out axial compression to the web member 2 that hub node 3 connects, and then improve the connection reliability of web member 2.That is, web member 2 of the present utility model can adopt the structure of similar chord member 11 to arrange, and certainly also has the effect that chord member 11 can produce.
Hub node 3 of the present utility model can also comprise connector 33, and hub node 3 can arrange axially through connecting hole 34, and connector 33 can run through connecting hole 34 and be fixedly connected with the gland 32 being in two ends with its two ends, and then by gland 32 axial compression.
In detail, connector 33 is specifically as follows lock-screw, runs through connecting hole 34 with its screw rod, and arranges hold-down nut and nut respectively in the position that the gland 32 with two ends is corresponding, by hold-down nut, screw axial is locked, and then make gland 32 axial compression at two ends.
Certainly, the form of structure of connector 33 is various, is not limited to above-mentioned lock-screw, can also be other keepers such as locking pin, specifically can arrange with reference to prior art.
On the basis of the above, can arrange the structure of groove 31, to improve the connection reliability of chord member 11 and hub node 3, web member 2 and hub node 3.
As shown in Figure 4, groove 31 can be set to serrated slot, and serrated slot comprises at least two sawtooth spaced apart in the radial direction of hub node 3, and that is, radially-inwardly recessed along hub node 3 of serrated slot, sawtooth can roughly in the axially extension of hub node 3.
The two side be oppositely arranged of serrated slot all can be provided with described sawtooth, and the sawtooth on two side can axially be symmetrical arranged; In other words, serrated slot can be the groove of symmetrical structure.Certainly, serrated slot can be set to symmetrical structure, also unsymmetric structure can be set to, namely multiple symmetry or asymmetrically distributed sawtooth can be provided with in serrated slot, the sawtooth being in both sides can be arranged on same diameter circumferentially symmetrically, also can be interlaced and be not in same diameter circumferentially.
Those skilled in the art can also arrange quantity and the distribution situation of hub node 3 upper groove 31 as required, to realize the connection of many chord members 11 or many web members 2, construct required support bar 1 and purlins.
It should be noted that, the utility model can arrange the structure of purlins as required, is not limited to the detailed description of the invention shown in Fig. 1-3, such as, can form parallelepiped or polyhedron, such as trapezoidal column structure etc.; When the overall structure of formed purlins is different, the connection between each support bar 1 and adjacent supports bar 1 all with reference to arranging above, can repeat no more herein.
Above to the utility model provide the large span assembling lattice purlins with mortise and tenon type hub node 3 to be described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands core concept of the present utility model for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (9)
1. one kind has the large span assembling lattice purlins of mortise and tenon type hub node, it is characterized in that, comprise at least two support bars (1), described support bar (1) is connected in sequence by some chord members (11) are linearly, each described support bar (1) is parallel to each other and is on different straight lines, is connected between adjacent described support bar (1) by some web members (2); Connected by hub node (3) between each described chord member (11), the periphery wall of described hub node (3) has the groove (31) extended in its axial direction, and the end of described chord member (11) and the end of described web member (2) all have the fin (4) coordinated with described groove (31).
2. large span assembling lattice purlins as claimed in claim 1, it is characterized in that, described groove (31) is serrated slot, and described serrated slot comprises the sawtooth of at least two distributions of the spaced radial described hub node (3).
3. large span assembling lattice purlins as claimed in claim 2, it is characterized in that, the two lateral walls of described serrated slot is equipped with sawtooth, and the derrated shaft on two side is to being symmetrical arranged.
4. large span assembling lattice purlins as claimed in claim 1, it is characterized in that, the two ends of described chord member (11) and the two ends of described web member (2) all form described fin (4) by flattening.
5. the large span assembling lattice purlins as described in any one of claim 1-4, it is characterized in that, the two ends of described hub node (3) are provided with gland (32), so that by each described chord member (11) and described web member (2) axial compression.
6. large span assembling lattice purlins as claimed in claim 5, it is characterized in that, also comprise connector (33), described hub node (3) has axially through connecting hole (34), described connector (33) runs through described connecting hole (34) and is connected with the described gland (32) of respective end with its two ends, to compress described gland (32).
7. large span assembling lattice purlins as claimed in claim 6, it is characterized in that, comprise three described support bars (1), three connects into the triangular prism shape of hollow.
8. large span assembling lattice purlins as claimed in claim 6, is characterized in that, comprise four described support bars (1), four rectangular cylindrical connecting into hollow.
9. large span assembling lattice purlins as claimed in claim 6, it is characterized in that, described web member (2) comprises the diagonal web member (22) being vertically connected to the vertical web rod (21) between adjacent described support bar (1) and being obliquely installed with relative described vertical web rod (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849300.7U CN205171825U (en) | 2015-10-29 | 2015-10-29 | Large -span assembly lattice formula purlin system with mortise type hub node |
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| CN201520849300.7U CN205171825U (en) | 2015-10-29 | 2015-10-29 | Large -span assembly lattice formula purlin system with mortise type hub node |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258782A (en) * | 2019-07-17 | 2019-09-20 | 天津大学 | Tooth line groove mortise and tenon type node and spatial mesh structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258782A (en) * | 2019-07-17 | 2019-09-20 | 天津大学 | Tooth line groove mortise and tenon type node and spatial mesh structure |
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