CN203452003U - Supporting lug device for tensioning of bridge stay cable - Google Patents
Supporting lug device for tensioning of bridge stay cable Download PDFInfo
- Publication number
- CN203452003U CN203452003U CN201320443840.6U CN201320443840U CN203452003U CN 203452003 U CN203452003 U CN 203452003U CN 201320443840 U CN201320443840 U CN 201320443840U CN 203452003 U CN203452003 U CN 203452003U
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- supporting lug
- stay cable
- cover plate
- vertical central
- fixedly connected
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Abstract
The utility model relates to a supporting lug device for tensioning of a bridge stay cable and belongs to the technical field of bridge engineering. The supporting lug device for tensioning of the bridge stay cable is composed of a left half supporting lug and a right half supporting lug which are symmetrical and fixedly connected, each half supporting lug comprises a vertical annular support which is in a shaped of a semicircular and annular cylinder, the top end of each vertical annular support is fixedly connected with a semicircular upper cover plate, the bottom end of each vertical annular support is fixedly connected with a semicircular lower cover plate, and through holes allowing the stay cable to pass through are formed in the centers of the upper cover plate and the lower cover plate of the left half supporting lug and in the centers of the upper cover plate and the lower cover plate of the right half supporting lug. According to the supporting lug device for tensioning of the bridge stay cable, the left half supporting lug and the right half supporting lug are connected through a connecting plates by means of high-strength bolts, the supporting lug device is divided into the two parts, the installation difficulty and the dismantling difficulty of the supporting lug device are reduced, and the stay cable replacing efficiency is improved.
Description
Technical field
The utility model belongs to technical field of bridge engineering, is specifically related to a kind of bridge stay cable stretch-draw spike device.
Background technology
Spike is the significant components of cable stayed bridge cable replacement engineering tensioning equipment.Old replacing stay cable of cable-stayed bridge construction sequence is generally divided into old rope dismounting and new rope is installed two steps, and it is by tensioning equipment, stay cable force to be discharged that old rope is removed, and new rope installation is to suspension cable, to apply predetermined pulling force by tensioning equipment.Tensioning equipment is the visual plant in replacing stay cable of cable-stayed bridge work progress, and wherein spike, between jack and anchor plate, is the core component of tensioning equipment.
The long general 300m that surpasses of rope of long span stayed-cable bridge, the every linear meter(lin.m.) of Suo Chong can surpass 100kg, and stay cable force can surpass 600t.In order smoothly old cable force release, new cable force to be applied, traditional form of construction work is, between stretch-draw jack and suspension cable anchor plate, jack reaction frame is installed.Jack reaction frame is generally the solid support force plate in two sides, and two sides is hollow operating surface, and form of fracture is rectangle.Jack reaction frame structure is heavy, repeat usage is low, safety factor is low, makes greatly across footpath large-tonnage stay cable replacing constructing operation is complicated, work efficiency is lower, potential safety hazard is more.
Existing spike is the functional instrument that engineers and technicians' incorporation engineering in cable tension process needs designed, designed, and due to the uncertainty of engineering problem, the problem that the spike in engineering application at present exists is mainly reflected in following three aspects:
(1) equipment is poor for applicability, repeat usage is low, cause the waste of resource;
(2) in use due to the changing factor of restriction and the operation of field condition, the solid support force plate of spike forms larger operating surface blind area, brings not convenient greatly to stretch-draw work;
(3) design concept of engineers and technicians based on traditional and the safety of construction, often design equipment to obtain complex structure, equipment heaviness, shifts difficulty, and structural stability is poor, safety factor is low.
Utility model content
The purpose of this utility model is exactly the defect for prior art, provides the old rope of a kind of cable stayed bridge to remove with in new rope installation process and is connected the bridge stay cable stretch-draw spike device between stretch-draw jack and anchor plate.
The technical solution adopted in the utility model is: it is formed by fixedly connecting by symmetrical left and right two and half spikes, described each half spike comprises the vertical central shoring that is shaped as semicircle circular cylinder, described vertical central shoring top is fixedly connected with semicircular upper cover plate, described vertical central shoring bottom is fixedly connected with semicircular lower cover, and upper cover plate and the lower cover center of described left and right two and half spikes have the through hole passing for suspension cable.The utility model is comprised of symmetrical two parts, by high-strength bolt, connects, and during installation and removal, single-piece is low weight, not limited by its Surrounding Parts.
Further preferred structure, described vertical central shoring two ends are provided with bolt otic placode, and described left and right two and half spikes pass bolt otic placode by bolt and are fixedly connected with.
Further preferred structure, has hole along even circumferential in described vertical central shoring.This hollow type structure has increased operating space when old cable force discharges and new cable force applies, and has reduced that old cable force discharges and new cable force applies difficulty, has improved that old cable force discharges and new cable force applies work efficiency.
Further preferred structure, is fixedly connected with reinforcement along even circumferential on described vertical central shoring inwall.
Further preferred structure, described upper cover plate with on lower cover, have for being connected the bolt hole of a plurality of spike devices.Can according to stretch-draw jack installation site, apart from anchor plate position, adjust the quantity that spike device connects, improve the scope of application of spike device, reduce the difficulty of spike device installation and removal, improve stay cable replacing construction efficiency.
The utlity model has that wide adaptability, easy to use, weight are light, low price, structure stress is reasonable, stability is high, safe and reliable, be convenient to installation and removal, reusable feature.Left and right of the present utility model two parts are connected by high-strength bolt by junction plate, and spike device is divided into two, and have reduced the difficulty of spike device installation and removal, have improved stay cable replacing construction efficiency.The vertical applied force member of spike device consists of vertical central shoring and six vertical central shoring reinforcements, the operating space while having increased stay cable replacing construction.Spike device can be adjusted the quantity that spike device connects apart from anchor plate position according to stretch-draw jack installation site, improved the scope of application of spike device.Inclined guy cable stretching jack counterforce device changes special spike device into by temporary structure, has reduced the security risk of stay cable replacing construction.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model top view;
Fig. 3 is half upper cover plate schematic diagram of the utility model;
Fig. 4 is half lower cover schematic diagram of the utility model;
Fig. 5 is vertical central shoring structural representation;
Fig. 6 is vertical central shoring reinforcement structure schematic diagram;
Fig. 7 is that the utility model is used view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form and limit the utility model.
As shown in Figure 7, large-tonnage inclined guy cable stretching spike device 6 of the present utility model adopts loop configuration design, is arranged between jack 13 and anchor plate 10.
As shown in Figure 1 and Figure 2, the utility model is formed by fixedly connecting by symmetrical left and right two and half spikes, each half spike comprises the vertical central shoring 3 that is shaped as semicircle circular cylinder, vertical central shoring 3 tops are fixedly connected with semicircular upper cover plate 1, vertical central shoring 3 bottoms are fixedly connected with semicircular lower cover 2, upper cover plate 1 center of left and right two and half spikes has the through hole 1.1 passing for suspension cable, and lower cover 2 centers have the through hole 2.1 passing for suspension cable.Spike device left and right two and half spikes are linked to be integral body by high-strength connecting bolt 5, wherein, upper cover plate 1 all adopts welding to be connected as a single entity with vertical central shoring 3, lower cover 2 with vertical central shoring 3, on vertical central shoring 3 inwalls, along even circumferential, be fixedly connected with reinforcement 4, reinforcement 4 is connected as a single entity with upper cover plate 1, lower cover 2, vertical central shoring 3 welding.
As shown in Figure 3, Figure 4, the upper cover plate 1 of every half spike is comprised of semicircular ring steel plate, leaves bolt hole 1.2 on it, to connect between the spike device while meeting differing heights; The lower cover 2 of every half spike is comprised of semicircular ring steel plate, leaves bolt hole 2.2 on it, to connect between the spike device while meeting differing heights.
As shown in Figure 5, in vertical central shoring 3, along even circumferential, have hole 3.2, vertical central shoring 3 is hollow type semicircle circular cylinders, mainly the load of upper cover plate 1 is delivered on lower cover 2.Vertical central shoring 3 two ends are provided with bolt otic placode 3.1, to make spike device left and right two parts connect into integral body.The hole 3.2 of opening along even circumferential in vertical central shoring 3 as shown in Figure 1, adopts with reinforcement 4 the hollow out location arrangements that staggers.
As shown in Figure 6, reinforcement 4 Main Functions in vertical central shoring 3 are to participate in bearing vertical load and improving vertical central shoring local pressure performance, and the load of upper cover plate 1 is transmitted to lower cover 2 smoothly.
When spike device 6 is installed, first tension rod 7 and tension rod nut 8 are installed on suspension cable 9 anchor head screw rods, again spike device 6 left and right two parts are installed on suspension cable 9 anchor heads, and be fixed on anchor plate 10, by high-strength connecting bolt 5, spike device 6 left and right two parts are linked to be to integral body, stretch-draw jack 13 is installed on spike device 6, can discharges, new drag-line is applied to pulling force old Cable power, pull down anchor head nut 11 and packing ring 12.
When spike device 6 is removed, first stretch-draw jack 13 is pulled down from spike device 6, come loose and connect the spike device 6 two-part high-strength connecting bolts 5 in left and right, respectively spike device 6 left and right two parts are removed from the anchor plate 10 of suspension cable 9 anchor heads, last tension rod nut 8 and tension rod 7 are removed from suspension cable 9 anchor head screw rods.
The content that this manual is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. a bridge stay cable stretch-draw spike device, it is characterized in that: it is formed by fixedly connecting by symmetrical left and right two and half spikes, described each half spike comprises the vertical central shoring that is shaped as semicircle circular cylinder, described vertical central shoring top is fixedly connected with semicircular upper cover plate, described vertical central shoring bottom is fixedly connected with semicircular lower cover, and upper cover plate and the lower cover center of described left and right two and half spikes have the through hole passing for suspension cable.
2. bridge stay cable stretch-draw spike device according to claim 1, is characterized in that: described vertical central shoring two ends are provided with bolt otic placode, and described left and right two and half spikes pass bolt otic placode by bolt and are fixedly connected with.
3. bridge stay cable stretch-draw spike device according to claim 1, is characterized in that: in described vertical central shoring, along even circumferential, have hole.
4. bridge stay cable stretch-draw spike device according to claim 1, is characterized in that: on described vertical central shoring inwall, along even circumferential, be fixedly connected with reinforcement.
5. bridge stay cable stretch-draw spike device according to claim 1, is characterized in that: described upper cover plate with on lower cover, have for being connected the bolt hole of a plurality of spike devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443840.6U CN203452003U (en) | 2013-07-24 | 2013-07-24 | Supporting lug device for tensioning of bridge stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320443840.6U CN203452003U (en) | 2013-07-24 | 2013-07-24 | Supporting lug device for tensioning of bridge stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203452003U true CN203452003U (en) | 2014-02-26 |
Family
ID=50131895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320443840.6U Expired - Lifetime CN203452003U (en) | 2013-07-24 | 2013-07-24 | Supporting lug device for tensioning of bridge stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203452003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756192A (en) * | 2021-08-20 | 2021-12-07 | 中铁十六局集团第五工程有限公司 | Bridge stay cable stretch-draw spike device |
-
2013
- 2013-07-24 CN CN201320443840.6U patent/CN203452003U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756192A (en) * | 2021-08-20 | 2021-12-07 | 中铁十六局集团第五工程有限公司 | Bridge stay cable stretch-draw spike device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
|
| CX01 | Expiry of patent term |