CN204781361U - Alternately open last quarter node fastener of string truss structure - Google Patents
Alternately open last quarter node fastener of string truss structure Download PDFInfo
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- CN204781361U CN204781361U CN201520437668.2U CN201520437668U CN204781361U CN 204781361 U CN204781361 U CN 204781361U CN 201520437668 U CN201520437668 U CN 201520437668U CN 204781361 U CN204781361 U CN 204781361U
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- reeving
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Abstract
The utility model relates to a fastener especially relates to an alternately open last quarter node fastener of string truss structure, belongs to the steel construction field. Including the vaulting pole connecting piece, the vaulting pole connecting piece in be equipped with the vaulting pole end plate, bottom and the vaulting pole connecting piece of vaulting pole end plate between be equipped with cross arc picture peg, the bottom of cross arc picture peg form in the ball chamber of reeving of concavity, the lower extreme of vaulting pole connecting piece be equipped with a pair of bilateral symmetry's outer recess, the ball chamber of reeving in be equipped with the ball of reeving, the ball of reeving in be equipped with the pore of reeving. Alternately open last quarter node fastener of string truss structure is rational in infrastructure, and construction precision is high, and construction cost is low, increases the steel construction security, and construction efficiency is high.
Description
Technical field
The utility model relates to a kind of fastener, particularly relates to a kind of lower-chord panel point fastening device intersecting truss-string-structure, belongs to field of steel structure.
Background technology
Truss-string-structure is combined by strut and lower edge drag-line by the rigidity compressed member that winds up to form self-balancing stress system, is a kind of large-span prestressed space structure system, is also that developing one of Mixed Architecture is successfully created.Beam-string structure is as a kind of novel form of structure, this year obtains and applies more and more widely in various large-span structure, its structural system is made up of the larger truss member of bending rigidity and high strength drag-line, adapt to space structures large span, light-duty, reasonable stress, succinct development trend, improve the resistance to overturning of trussed construction, structure is made to cross over larger space, the high-strength pulling-resisting of rope material can be made full use of, the internal force distribution of adjustment system, reduce internal force amplitude, thus improve the supporting capacity of structure.It is that " X " type is arranged that the drag-line of trussed construction intersects along main structure, and wherein drag-line termination is positioned at truss end, and such layout makes member stress more reasonable, and system is more succinct, moulding is more attractive in appearance.But also bring series of problems simultaneously, in truss string structure, the prestressed cable of lower edge is difficult to be effectively connected with vertical strut and fastening, cause drag-line easily eccentric, increase frictional force, loss of prestress is comparatively large, the stressed flexing of securing member, and the actual internal force size of the rope of intersection truss-string-structure, strut, trussmember and distribution and different design after finally causing pre-stress construction to complete, the mechanical property of whole string being propped up to structure has a negative impact by this.
Current truss-string-structure pre-stress construction common method has: (1) unidirectional stretching method.(2) two directions tension method.And the geometrical relationship between rope and vertical strut and frictional property, tension sequence etc. between the two must affect loss of prestress, and the actual internal force size of the rope of truss-string-structure, strut, trussmember and distribution and different design after finally causing pre-stress construction to complete, this has a negative impact to the mechanical property of whole truss-string-structure.
Utility model content
The utility model mainly solves the deficiencies in the prior art, provides a kind of compact conformation, drag-line and strut can be made effectively to be connected and make to answer in advance the lower-chord panel point fastening device of the intersection truss-string-structure of strength enhancing.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of lower-chord panel point fastening device intersecting truss-string-structure, comprise strut connector, strut end plate is provided with in described strut connector, cross arc-shaped insert plate is provided with between the bottom of described strut end plate and strut connector, the ball chamber of reeving of inner concavity is formed on the bottom of described cross arc-shaped insert plate, the lower end of described strut connector is provided with a pair symmetrical outer groove, is provided with ball of reeving, is provided with duct of reeving in described ball of reeving in described ball chamber of reeving.
As preferably, the top of described strut end plate is provided with strut cross and puts more energy into floor, put more energy into floor and cross arc-shaped insert plate of described strut cross is halved together with strut connector respectively, described strut cross put more energy into floor outer wall with and the outer wall of strut connector, the outer wall of cross arc-shaped insert plate and strut connector outer wall be respectively same level EDS maps, the edge of described strut end plate is to strut connector extension, and the external diameter of described strut end plate is greater than the external diameter of strut connector.
As preferably, described cross arc-shaped insert plate comprises short arc plate and long arc shape plate, described short arc plate and long arc shape plate are that crosswise distributes, the bottom of described long arc shape plate is provided with the semi-circular recesses of inner concavity, the bottom of described short arc plate is provided with the arc groove of inner concavity, the two side ends of described arc groove is respectively equipped with acclivitous operation swash plate, and described operation swash plate and outer groove are in connecting distribution, and described outer groove is in " ∩ " shape.
As preferably, described ball of reeving is made up of two hemisphere, and two hemisphere are fastened by 4 equally distributed bolts, and described duct of reeving is located between two hemisphere; The bottom of described strut connector is provided with shrouding.
As preferably, the diameter of described outer groove and the equal diameters in duct of reeving, the inwall in described duct of reeving is provided with plucking layer.
The utility model provides the lower-chord panel point fastening device of intersection truss-string-structure, and rational in infrastructure, construction precision is high, and construction cost is low, and increase steel work safety, construction efficiency is high.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is left TV structure schematic diagram of the present utility model;
Fig. 4 is right TV structure schematic diagram of the present utility model;
Fig. 5 is the structural representation of ball of reeving in the utility model.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of lower-chord panel point fastening device intersecting truss-string-structure, comprise strut connector 1, strut end plate 2 is provided with in described strut connector 1, cross arc-shaped insert plate 3 is provided with between the bottom of described strut end plate 2 and strut connector 1, the ball chamber 4 of reeving of inner concavity is formed on the bottom of described cross arc-shaped insert plate 3, the lower end of described strut connector 1 is provided with a pair symmetrical outer groove 5, be provided with ball 6 of reeving in described ball chamber 4 of reeving, in described ball 6 of reeving, be provided with duct 7 of reeving.
The top of described strut end plate 2 is provided with strut cross and puts more energy into floor 8, put more energy into floor 8 and cross arc-shaped insert plate 3 of described strut cross is halved together with strut connector 1 respectively, described strut cross put more energy into floor 8 outer wall with and the outer wall of strut connector 1, the outer wall of cross arc-shaped insert plate 3 and strut connector 1 outer wall be respectively same level EDS maps, the edge of described strut end plate 2 is to strut connector 1 extension, and the external diameter of described strut end plate 2 is greater than the external diameter of strut connector 1.
Described cross arc-shaped insert plate 3 comprises short arc plate 9 and long arc shape plate 10, described short arc plate 9 distributes in crosswise with long arc shape plate 10, the bottom of described long arc shape plate 10 is provided with the semi-circular recesses 11 of inner concavity, the bottom of described short arc plate 9 is provided with the arc groove 12 of inner concavity, the two side ends of described arc groove 12 is respectively equipped with acclivitous operation swash plate 13, described operation swash plate 13 is with outer groove 5 in connecting distribution, and described outer groove 5 is in " ∩ " shape.
Described ball 6 of reeving is made up of two hemisphere, and two hemisphere are fastened by 4 equally distributed bolts 14, and described duct 7 of reeving is located between two hemisphere; The bottom of described strut connector 1 is provided with shrouding 15.
The diameter of described outer groove 5 and the equal diameters in duct 7 of reeving, the inwall in described duct 7 of reeving is provided with plucking layer.
Claims (5)
1. one kind intersects the lower-chord panel point fastening device of truss-string-structure, it is characterized in that: comprise strut connector (1), strut end plate (2) is provided with in described strut connector (1), cross arc-shaped insert plate (3) is provided with between the bottom of described strut end plate (2) and strut connector (1), the ball chamber (4) of reeving of inner concavity is formed on the bottom of described cross arc-shaped insert plate (3), the lower end of described strut connector (1) is provided with a pair symmetrical outer groove (5), ball of reeving (6) is provided with in described ball chamber (4) of reeving, duct of reeving (7) is provided with in described ball of reeving (6).
2. the lower-chord panel point fastening device of intersection truss-string-structure according to claim 1, it is characterized in that: the top of described strut end plate (2) is provided with strut cross and puts more energy into floor (8), put more energy into floor (8) and cross arc-shaped insert plate (3) of described strut cross is halved together with strut connector (1) respectively, described strut cross put more energy into floor (8) outer wall with and the outer wall of strut connector (1), the outer wall of cross arc-shaped insert plate (3) and the outer wall of strut connector (1) are respectively in same level EDS maps, the edge of described strut end plate (2) is to strut connector (1) extension, the external diameter of described strut end plate (2) is greater than the external diameter of strut connector (1).
3. the lower-chord panel point fastening device of intersection truss-string-structure according to claim 1 and 2, it is characterized in that: described cross arc-shaped insert plate (3) comprises short arc plate (9) and long arc shape plate (10), described short arc plate (9) and long arc shape plate (10) distribute in crosswise, the bottom of described long arc shape plate (10) is provided with the semi-circular recesses (11) of inner concavity, the bottom of described short arc plate (9) is provided with the arc groove (12) of inner concavity, the two side ends of described arc groove (12) is respectively equipped with acclivitous operation swash plate (13), described operation swash plate (13) and outer groove (5) are in connecting distribution, described outer groove (5) is in " ∩ " shape.
4. the lower-chord panel point fastening device of intersection truss-string-structure according to claim 1 and 2, it is characterized in that: described ball of reeving (6) is made up of two hemisphere, two hemisphere are fastened by 4 equally distributed bolts (14), and described duct of reeving (7) is located between two hemisphere; The bottom of described strut connector (1) is provided with shrouding (15).
5. the lower-chord panel point fastening device of intersection truss-string-structure according to claim 1 and 2, it is characterized in that: the diameter of described outer groove (5) and the equal diameters of duct (7) of reeving, the inwall in described duct of reeving (7) is provided with plucking layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437668.2U CN204781361U (en) | 2015-06-24 | 2015-06-24 | Alternately open last quarter node fastener of string truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437668.2U CN204781361U (en) | 2015-06-24 | 2015-06-24 | Alternately open last quarter node fastener of string truss structure |
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| Publication Number | Publication Date |
|---|---|
| CN204781361U true CN204781361U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520437668.2U Active CN204781361U (en) | 2015-06-24 | 2015-06-24 | Alternately open last quarter node fastener of string truss structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089163A (en) * | 2015-06-24 | 2015-11-25 | 浙江东南网架股份有限公司 | Lower-chord panel point fastening device of crossed truss string structure and fastening tensioning method |
| CN112942363A (en) * | 2021-01-29 | 2021-06-11 | 江苏三力岩土科技有限公司 | Deep basal pit prestressing force steel braced system |
| CN112942364A (en) * | 2021-01-29 | 2021-06-11 | 江苏三力岩土科技有限公司 | Self-balancing large-span deep foundation pit prestressed beam system |
-
2015
- 2015-06-24 CN CN201520437668.2U patent/CN204781361U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089163A (en) * | 2015-06-24 | 2015-11-25 | 浙江东南网架股份有限公司 | Lower-chord panel point fastening device of crossed truss string structure and fastening tensioning method |
| CN112942363A (en) * | 2021-01-29 | 2021-06-11 | 江苏三力岩土科技有限公司 | Deep basal pit prestressing force steel braced system |
| CN112942364A (en) * | 2021-01-29 | 2021-06-11 | 江苏三力岩土科技有限公司 | Self-balancing large-span deep foundation pit prestressed beam system |
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| C14 | Grant of patent or utility model | ||
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