CN203174892U - Pre-stressed tendon single pole multi-thread connector for field processing - Google Patents
Pre-stressed tendon single pole multi-thread connector for field processing Download PDFInfo
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- CN203174892U CN203174892U CN 201320125950 CN201320125950U CN203174892U CN 203174892 U CN203174892 U CN 203174892U CN 201320125950 CN201320125950 CN 201320125950 CN 201320125950 U CN201320125950 U CN 201320125950U CN 203174892 U CN203174892 U CN 203174892U
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Abstract
The utility model discloses a pre-stressed tendon single pole multi-thread connector for field processing. The pre-stressed tendon single pole multi-thread connector comprises two sections of parallel steel channels (1), the waist parts (12) of the two sections of steel channels (1) are adjacent at left and right, the openings of the two sections of steel channels (1) are opposite to each other, a finishing deformed bar (2) and two or four steel strands (3) parallel to one other can be contained between the waist parts of the two sections of steel channels (1), the steel strands (3) are arranged in symmetry by taking the finishing deformed bar (2) as the axle, the length direction of the steel channels (1) is vertical to the axis of the finishing deformed bar (2), the finishing deformed bar (2) is fixedly connected with the two sections of steel channels (1), and the steel strands (3) are fixedly connected with the two sections of steel channels (1). By virtue of the pre-stressed tendon single pole multi-thread connector, one finishing deformed bar can be simultaneously connected with a plurality of steel strands, so that pre-buried pre-stressed deformed bars and connectors are greatly reduced, and material waste caused by the low utilization rate of the intensity of the finishing deformed bar is avoided.
Description
Technical field
The utility model relates to technical field of bridge construction, a kind of especially multi-thread connector of presstressed reinforcing steel single pole that a fining twisted steel and many scenes that are connected with steel strand are processed of being used in bridge construction.
Background technology
In " highway bridge and culvert construction technique normalizing " JTG/T F50-2051 5.4.3, the construction camber should be considered following factors: template, support bear the elastic deformation that working load causes; Extruding and lowering device owing to the rod member joint behind the stand under load compress the nonelastic deformation that produces; The sedimentation and deformation of support ground behind stand under load.Thereby in bridge construction, the temporary structure pre-pressing bracket is absolutely necessary, the precompressed construction has two kinds of methods usually: accumulation load method, counter-force method, can learn that according to long-term construction experience the sand pocket accumulation load method contains unfavorable factors such as complicated operation, engineering time length.The counter-force rule relies on prestress wire to cooperate jack to apply the mode of counter-force in substructure, as pre-buried finish rolling screw thread in the cushion cap, adopt connector that steel strand are connected with the pre-buried smart screw-thread steel of pricking in the cushion cap, and spreading to cradle top surface and jack carried out stretch-draw, rely on ground tackle to apply counter-force reaching the purpose of precompressed to section steel beam, thereby have advantage such as easy and simple to handle, weak point consuming time.
Prior art as shown in Figure 1, a fining twisted steel 85 is connected by a connector 81 one to one with steel strand 86, connector 81 comprises intermediate plate 82, connector 83 and connecting rod 84.Steel strand kind commonly used is ∮ 15.2 tensile strength 1860MPa, section area 140mm
2, be mainly used in bridge member and apply prestressing force.That fining twisted steel is comparatively commonly used is PSB830, yield strength 830MPa, and tensile strength is 1030MPa, and diameter is 25mm or 32mm, and section area is 490mm
2, or 804mm
2If adopt man-to-man line bar to connect, then when steel strand tension arrived tensile strength, fining twisted steel intensity had only reached 49% of its tensile strength.Consider situations such as steel strand tension process safe and fracture of wire stripped thread simultaneously, the general tensile strength of controlling at 0.73 times of actual tension stress, this has just further caused the rate of utilization of strength of fining twisted steel lower.
So the available technology adopting fining twisted steel with the shortcoming that steel strand are connected one to one is: 1, pre-buried smart bundle indented bars is many, waste material; 2, poor because of the strength of materials and section area, underuse fining twisted steel intensity; 3, finish rolling deformed bar length limited, part pier stud height has exceeded joint length, needs to increase sleeve and connects.
The utility model content
For solve prior art connect one to one in the smart screw-thread steel of pricking do not give full play to its intensity and the technical problem of waste material, the utility model provides a kind of multi-thread connector of presstressed reinforcing steel single pole for scene processing, adopt this to be used for the multi-thread connector of presstressed reinforcing steel single pole of on-the-spot processing, only need pre-buried single fining twisted steel, and reliably be connected with many steel strand, not only take full advantage of material, be convenient to constructing operation, improved efficient.
The utility model for the technical scheme that solves its technical problem employing is: a kind of multi-thread connector of presstressed reinforcing steel single pole for scene processing, comprise two sections channel-section steels that are parallel to each other, the opening of the adjacent and two sections channel-section steels in the waist left and right sides of two sections channel-section steels is towards on the contrary, can hold a fining twisted steel and two steel strand of being parallel to each other between the waist of two sections channel-section steels, or can hold a fining twisted steel and four steel strand that are parallel to each other between the waist of two sections channel-section steels, steel strand are the axial symmetry setting with the fining twisted steel, the length direction of channel-section steel and the axis normal of fining twisted steel, the nut that is arranged on channel-section steel one side can be fixedlyed connected fining twisted steel with two sections channel-section steels, the ground tackle that is arranged on the channel-section steel opposite side can be fixedlyed connected steel strand with two sections channel-section steels.
Nut is connected with two sections channel-section steels by first backing plate, and first backing plate is provided with the through hole that passes for fining twisted steel, and the diameter of the described through hole that passes for fining twisted steel is less than the circumscribed circle diameter of nut.
Ground tackle is connected with two sections channel-section steels by second backing plate, and second backing plate is respectively arranged with the through hole that passes for steel strand and the through hole that passes for fining twisted steel, and the diameter of the described through hole that passes for steel strand is less than the external diameter of ground tackle.
The diameter of fining twisted steel is less than the distance between the waist of two sections channel-section steels.
Be welded with a plurality of reinforcement steel plates in the opening of channel-section steel, it is vertical with the length direction of channel-section steel to strengthen steel plate.
Be welded with a plurality of reinforcement steel plates between the waist of two sections channel-section steels, it is vertical with the length direction of channel-section steel to strengthen steel plate.
Be provided with in the ground tackle for the fixing intermediate plate of steel strand.
The beneficial effects of the utility model are: significantly reduced pre-buried prestressed reinforcement and common connector quantity, guaranteed effective connection of prestressed reinforcement, avoided owing to the low waste material that causes of prestressed reinforcement rate of utilization of strength; This connector can also significantly be saved the execute-in-place time, raises the efficiency.
Description of drawings
Below in conjunction with accompanying drawing the multi-thread connector of presstressed reinforcing steel single pole for scene processing described in the utility model is described in further detail.
Fig. 1 is the structural representation of existing connector.
Fig. 2 is the front view of the multi-thread connector of presstressed reinforcing steel single pole described in the utility model.
Fig. 3 is the enlarged diagram at channel-section steel position among Fig. 2.
Fig. 4 is the left view of the multi-thread connector of presstressed reinforcing steel single pole described in the utility model.
Fig. 5 is the vertical view of the multi-thread connector of the single pole of presstressed reinforcing steel shown in Fig. 4.
1. channel-section steels wherein, 11. openings, 12. waists, 2. fining twisted steel, 3. steel strand, 41. nuts, 42. ground tackle, 43. intermediate plates, 51. first backing plates, 52. second backing plate is 6. strengthened steel plate, 7. i iron anchoring beam, 81. connector, 82. intermediate plates, 83. connectors, 84. connecting rod, 85. fining twisted steels, 86. steel strand.
The specific embodiment
Below in conjunction with accompanying drawing the multi-thread connector of presstressed reinforcing steel single pole described in the utility model is elaborated.As Fig. 2, Fig. 3, shown in Figure 4, a kind of multi-thread connector of presstressed reinforcing steel single pole for scene processing, comprise two sections channel-section steels that are parallel to each other 1, the opening 11 of the adjacent and two sections channel-section steels 1 in waist 12 left and right sides of two sections channel-section steels 1 is towards on the contrary, can hold a fining twisted steel 2 and two steel strand 3 of being parallel to each other between the waist 12 of two sections channel-section steels 1, or can hold a fining twisted steel 2 and four steel strand 3 that are parallel to each other between the waist 12 of two sections channel-section steels 1, steel strand 3 are the axial symmetry setting with fining twisted steel 2, namely fining twisted steel 2 and two or four steel strand 3 pass between the waist 12 of two sections channel-section steels 1, when two steel strand 3, the both sides of a fining twisted steel 2 respectively are provided with steel strand 3, when four steel strand 3, the both sides of a fining twisted steel 2 respectively are provided with two steel strand 3, the axis normal of the length direction of channel-section steel 1 and fining twisted steel 2, length direction as channel-section steel among Fig. 21 is perpendicular to paper, the axis of fining twisted steel 2 is above-below direction, the nut 41 that is arranged on channel-section steel 1 one sides can be fixedlyed connected fining twisted steel 2 with two sections channel-section steels 1, the ground tackle 42 that is arranged on channel-section steel 1 opposite side can be fixedlyed connected steel strand 3 with two sections channel-section steels 1, as shown in Figure 4, nut 41 is arranged on upside, and ground tackle 42 is arranged on downside.
Be connected one to one with steel strand 86 with fining twisted steel 85 in the prior art shown in Figure 1 and compare, utilize this multi-thread connector of presstressed reinforcing steel single pole that is used for on-the-spot processing that a fining twisted steel 2 is connected with many steel strand 3 simultaneously, significantly reduced pre-buried prestressing force fining twisted steel and connector quantity, avoided owing to the low waste material that causes of fining twisted steel rate of utilization of strength; The multi-thread connector of this presstressed reinforcing steel single pole can also significantly be saved the execute-in-place time, raises the efficiency.
The diameter of fining twisted steel 2 is less than the distance between the waist 12 of two sections channel-section steels 1.Be welded with a plurality of reinforcement steel plates 6 in the opening 11 of channel-section steel 1, it is vertical with the length direction of channel-section steel 1 to strengthen steel plate 6.Strengthen steel plate 6 and play reinforcing rib, strengthen the compressive strength of channel-section steel 1, as Fig. 4, shown in Figure 5, be welded with 6 in two sections channel-section steels 1 and strengthen steel plate 6.Be welded with 6 between the waist 12 of two sections channel-section steels 1 and strengthen steel plate 6, it is vertical with the length direction of channel-section steel 1 to strengthen steel plate 6, and the thickness of strengthening steel plate 6 is 1cm.
Be provided with in the ground tackle 42 for the fixing intermediate plate 43 of steel strand 3.Ground tackle 42 is the OVM ground tackle.
The above; only be specific embodiment of the utility model, can not limit the scope that utility model is implemented with it, so the displacement of its equivalent assemblies; or according to equivalent variations and modification that the utility model scope of patent protection is done, all should still belong to the category that this patent is contained.
Claims (7)
1. one kind is used for the on-the-spot multi-thread connector of processing of presstressed reinforcing steel single pole, it is characterized in that, the multi-thread connector of described presstressed reinforcing steel single pole comprises two sections channel-section steels that are parallel to each other (1), the opening of the adjacent and two sections channel-section steels (1) in waist (12) left and right sides of two sections channel-section steels (1) is towards on the contrary, can hold the fining twisted steel (2) and two steel strand (3) that are parallel to each other between the waist (12) of two sections channel-section steels (1), or can hold a fining twisted steel (2) and four steel strand (3) that are parallel to each other between the waist (12) of two sections channel-section steels (1), steel strand (3) are the axial symmetry setting with fining twisted steel (2), the axis normal of the length direction of channel-section steel (1) and fining twisted steel (2), the nut (41) that is arranged on channel-section steel (1) one side can be fixedlyed connected fining twisted steel (2) with two sections channel-section steels (1), the ground tackle (42) that is arranged on channel-section steel (1) opposite side can be fixedlyed connected steel strand (3) with two sections channel-section steels (1).
2. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1, it is characterized in that: nut (41) is connected with two sections channel-section steels (1) by first backing plate (51), first backing plate (51) is provided with the through hole that passes for fining twisted steel (2), and the diameter of the described through hole that passes for fining twisted steel (2) is less than the circumscribed circle diameter of nut (41).
3. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1, it is characterized in that: ground tackle (42) is connected with two sections channel-section steels (1) by second backing plate (52), second backing plate (52) is respectively arranged with the through hole that passes for steel strand (3) and is used for the through hole that fining twisted steel (2) passes, and the diameter of the described through hole that passes for steel strand (3) is less than the external diameter of ground tackle (42).
4. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1, it is characterized in that: the diameter of fining twisted steel (2) is less than the distance between the waist (12) of two sections channel-section steels (1).
5. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1 is characterized in that: be welded with a plurality of reinforcement steel plates (6) in the opening (11) of channel-section steel (1), it is vertical with the length direction of channel-section steel (1) to strengthen steel plate (6).
6. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1 is characterized in that: be welded with a plurality of reinforcement steel plates (6) between the waist (12) of two sections channel-section steels (1), it is vertical with the length direction of channel-section steel (1) to strengthen steel plate (6).
7. the multi-thread connector of presstressed reinforcing steel single pole according to claim 1 is characterized in that: be provided with in the ground tackle (42) for the fixing intermediate plate (43) of steel strand (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125950 CN203174892U (en) | 2013-03-19 | 2013-03-19 | Pre-stressed tendon single pole multi-thread connector for field processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125950 CN203174892U (en) | 2013-03-19 | 2013-03-19 | Pre-stressed tendon single pole multi-thread connector for field processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203174892U true CN203174892U (en) | 2013-09-04 |
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ID=49071616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125950 Expired - Fee Related CN203174892U (en) | 2013-03-19 | 2013-03-19 | Pre-stressed tendon single pole multi-thread connector for field processing |
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| CN (1) | CN203174892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500993A (en) * | 2018-12-29 | 2019-03-22 | 威海新元果业技术服务有限公司 | Prestressed anchor, pre-stress stretching device and pre-stress stretching method |
| CN114082781A (en) * | 2021-11-26 | 2022-02-25 | 安孝 | Finish rolling processing machine and finish rolling processing technology for deformed steel bar |
-
2013
- 2013-03-19 CN CN 201320125950 patent/CN203174892U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500993A (en) * | 2018-12-29 | 2019-03-22 | 威海新元果业技术服务有限公司 | Prestressed anchor, pre-stress stretching device and pre-stress stretching method |
| CN109500993B (en) * | 2018-12-29 | 2023-10-27 | 新元果业(山东)集团有限公司 | Prestressed anchorage device, prestressed tensioning device and prestressed tensioning method |
| CN114082781A (en) * | 2021-11-26 | 2022-02-25 | 安孝 | Finish rolling processing machine and finish rolling processing technology for deformed steel bar |
| CN114082781B (en) * | 2021-11-26 | 2023-11-21 | 宁夏建龙特钢有限公司 | Deformed steel bar finish rolling machining machine and finish rolling machining process |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 |
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| CF01 | Termination of patent right due to non-payment of annual fee |