CN203096625U - Suspending basket back pressure slideway anchoring structure - Google Patents
Suspending basket back pressure slideway anchoring structure Download PDFInfo
- Publication number
- CN203096625U CN203096625U CN 201320011790 CN201320011790U CN203096625U CN 203096625 U CN203096625 U CN 203096625U CN 201320011790 CN201320011790 CN 201320011790 CN 201320011790 U CN201320011790 U CN 201320011790U CN 203096625 U CN203096625 U CN 203096625U
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- Prior art keywords
- slideway
- bolt
- nut
- anchoring
- hanging basket
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Abstract
The utility model discloses a suspending basket back pressure slideway anchoring structure. The suspending basket back pressure slideway anchoring structure comprises a suspending basket back pressure slideway, an anchoring base, an anchoring bolt assembly and a matched nut assembly. Lower surfaces of the left sides and the right sides of two main plates of the anchoring base are matched with a bearing face of the back pressure slideway in shape and compress the bearing face of the back pressure slideway. A bolt vertically penetrates through the anchoring base. A lower nut is in threaded connection with an externally arranged threaded hole of a secondary stretch-draw anchoring cup or a threaded hole with a thread working anchoring plate. The upper portion of the bolt and an upper nut of the nut assembly are combined in a twisted mode, and a base plate compresses the upper portion of the anchoring base. Accessories such as the bolt, the nut and the anchoring base are mutually locked and compressed, the suspending basket back pressure slidway can be anchored, dismantling is easy, and the suspending basket back pressure slideway anchoring structure can be widely applied to bridge engineering.
Description
Technical field
The utility model relate to a kind of be applicable to the design vertical prestressing bar be the engineering accessory of the bridge engineering Hanging Basket back-pressure slideway of two times tensioning underrelaxation steel strand.
Background technology
In the modern bridge construction, the general employing cantilever construction method of its girder.Cantilever construction divides cantilever pouring and two kinds of methods of free cantilever erection, and wherein cast-in-place cantilever method is most widely used.Hanging Basket then is the main facility of cantilever pouring construction, and it is the jenny scaffold of an energy along track travel.Hanging Basket is suspended on the case beam beam section of stretch-draw anchor, and work such as the template installation of case beam beam section, reinforcing bar binding, piping erection, concreting, prestressed stretch-draw, mud jacking are all carried out on Hanging Basket during cantilever pouring.After the construction sequence of a beam section is finished, all constraints that are connected with box girder body of Hanging Basket are all removed, and anchor behind the releasing truss, shift to next beam section construction.Hanging Basket requires its overturning or slip resistance analysis coefficient of stability must not be less than 2 in construction and walking process.And tackle described overturning or slip resistance analysis problem, balance weight is added in present or employing, or adopts the mode of back-pressure slideway anchoring.Scheme with the back-pressure slideway is excellent in comparison.
The mode of present Hanging Basket back-pressure slideway anchoring is such: slideway is made up of two traverses, parallel to each other and close steel I-beams, bridge construction itself be embedded with fining twisted steel as slideway anchoring pedal muscle, being equipped with slideway anchoring base connects with slideway, and connect short fining twisted steel of same diameter and slideway anchoring base, thereby realize direct anchoring with connector.But, traditional design raising middle flask web vertical prestressing bar adopts that fining twisted steel exists that loss of prestress is big, the reduction of perpetuity stress, easy fracture, squeezing quality defect of bad, in order to overcome this defective, and remedy steel strand simultaneously and put a prestressing force that anchoring intermediate plate retraction is lost for the first time, the bridge vertical prestressing bar is also towards adopting the development of the low retraction of two times tensioning steel strand anchor system.If yet adopt the underrelaxation steel strand as vertical prestressing bar, existing connector can't directly carry out anchoring to the back-pressure slideway again, and needing in addition, pre-buried a large amount of fining twisted steels have increased construction cost and difficulty of construction as anchoring body.
The utility model content
The technical problems to be solved in the utility model is: a kind of Hanging Basket back-pressure slideway anchor structure is provided, and it can be applicable to that the design vertical prestressing bar is the bridge engineering of two times tensioning underrelaxation steel strand.
The solution that the utility model solves its technical problem is:
A kind of Hanging Basket back-pressure slideway anchor structure comprises:
Hanging Basket back-pressure slideway, it comprises setting parallel to each other but left slideway unit separated from one another and right slideway unit, the top of these two slideway unit is provided with the bar steel plate that they are coupled together, slideway unit, a left side and right slideway unit all have the support face, and support face separately lays respectively at the right and left of the interior side-lower of Hanging Basket back-pressure slideway;
The anchoring base, it is that left slideway unit and right slideway unit lay respectively at the right and left of anchoring base by two mainboards and two blocks of shelf shape members that the floor welding combines;
Anchor bolts assemblies, it comprises that the upper end is welded with the bolt that screw thread is tightened clamp, and the following thread segment of bolt is connected with nut connecting plate and lower nut, and nut connecting plate and lower nut are the welding combination.
The attaching nut combination, it comprises backing plate, is provided with top nut and the packing ring between backing plate and top nut on the backing plate;
The left and right sides soffit of two mainboards of described anchoring base and the shape of described support face are coincide and it are pushed down, bolt vertically passes the anchoring base, lower nut is threaded with the screwed hole of the two times tensioning anchor cup of peripheral hardware, the top nut of bolt top and nut combinations is twisted and is closed, and backing plate is pushed down the top of anchoring base.
As further improvement in the technical proposal, described left slideway unit and right slideway unit are i iron, and the support face is the edge of a wing, bottom of i iron.
As further improvement in the technical proposal, described anchoring base is welded by horizontal two mainboards and two vertical floors, and mainboard and floor are all upright and be welded into the shelf shape member of hollow square, and hollow position passes for bolt.
As further improvement in the technical proposal, the square component of described packing ring for making by steel plate, its center is provided with diameter than the circular hole big 2 ~ 3mm of bolt, that supply bolt to pass.
As further improvement in the technical proposal, the rectangular member of described backing plate for being made by steel plate which is provided with the waist-shaped hole that passes for bolt, and the diameter of the semicircle end of waist-shaped hole is than the big 2 ~ 3mm of bolt.
The beneficial effects of the utility model are: attaching nut of the present utility model combination can spin with the screwed hole of the anchor cup of vertical underrelaxation steel strand two times tensioning system, slideway anchoring base and slideway anchor bolt can carry out anchoring to the Hanging Basket slideway, guarantee the stable of Hanging Basket; And when Hanging Basket walking be displaced to next sections assigned address and proofread and correct, after the anchoring, the anchoring base of dismountable last sections, anchor bolts assemblies, attaching nut combination and Hanging Basket back-pressure slideway are realized recycling.
In addition, all accessories of the present utility model are members such as simple backing plate, nut, just can moulding by buying the standard spare and accessory parts or carrying out conventional machine, and simple in structure, cost of manufacture is low; The utility model utilizes the anchor cup of lower nut and two times tensioning system or the screwed hole of threaded work anchor slab to spin, installs, convenient disassembly, and the efficiency of construction height, less investment, cost are low, can reuse, safety and environmental protection, help applying.
The utility model can be widely used in the Hanging Basket slideway anchoring operation of bridge engineering.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use is done simple declaration in will describing embodiment below.Obviously, described accompanying drawing is a part of embodiment of the present utility model, rather than whole embodiment, and those skilled in the art can also obtain other design schemes and accompanying drawing according to these accompanying drawings under the prerequisite of not paying creative work.
Sectional structure schematic diagram when Fig. 1 is the utility model work;
Fig. 2 is the plan structure schematic diagram of the anchoring base in the utility model;
Fig. 3 is the anchor bolts assemblies sectional structure schematic diagram in the utility model.
The specific embodiment
Be clearly and completely described below with reference to embodiment and accompanying drawing technique effect, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.Obviously; described embodiment is a part of embodiment of the present utility model, rather than whole embodiment, based on embodiment of the present utility model; other embodiment that those skilled in the art is obtained under the prerequisite of not paying creative work all belong to the scope that the utility model is protected.In addition, all connection/annexations of being mentioned in the literary composition are not to refer to that singly member directly joins, and are meant and can connect auxiliary by adding or reducing according to concrete performance, form more excellent draw bail.
A kind of Hanging Basket back-pressure slideway anchor structure comprises:
Hanging Basket back-pressure slideway, it comprises setting parallel to each other but left slideway unit 10a separated from one another and right slideway unit 10b, the top of these two slideway unit is provided with the bar steel plate that they are coupled together, left side slideway unit 10a and right slideway unit 10b all have the support face, and support face separately lays respectively at the right and left of the interior side-lower of Hanging Basket back-pressure slideway;
The anchoring base, it is that left slideway unit 10a and right slideway unit 10b lay respectively at the right and left of anchoring base by two mainboards 1 and two blocks of shelf shape members that floor 2 welding combine;
Anchor bolts assemblies, it comprises that the upper end is welded with the bolt 7 that screw thread is tightened clamp 3, and the following thread segment of bolt 7 is connected with nut connecting plate 8 and lower nut 9, and nut connecting plate 8 is the welding combination with lower nut 9.
The attaching nut combination, it comprises backing plate 6, is provided with top nut 4 and the packing ring 5 between backing plate 6 and top nut 4 on the backing plate 6;
The left and right sides soffit of two mainboards 1 of described anchoring base and the shape of described support face are coincide and it are pushed down, bolt 7 vertically passes the anchoring base, lower nut 9 is threaded with the screwed hole of the two times tensioning anchor cup 12 of peripheral hardware, the top nut 4 of bolt 7 tops and nut combinations is twisted and is closed, and backing plate 6 is pushed down the top of anchoring base.
Though it is pointed out that and adopt " left side ", " right side " to come here to the name of slideway unit, in the real work, should be with the time of day of slideway, judge the orientation ownership on its " left side " and " right side ", naming rule herein only is the connecting relation of member for convenience of description.
Be further used as preferred embodiment, described left slideway unit 10a and right slideway unit 10b are i iron, and the support face is the edge of a wing, bottom of i iron.With reference to Fig. 1, the position of the i iron that mainboard 1 lower left corner and the lower right corner are pushed down is described support face.
Be further used as preferred embodiment, described anchoring base is welded by horizontal two mainboards 1 and two vertical floors 2, and mainboard 1 is all upright and be welded into the shelf shape member of hollow square with floor 2, and hollow position passes for bolt 7.
Be further used as preferred embodiment, the square component of described packing ring 5 for making by steel plate, its center is provided with diameter than circular hole bolt 7 big 2 ~ 3mm, that supply bolt 7 to pass.
Be further used as preferred embodiment, the rectangular member of described backing plate 6 for being made by steel plate which is provided with the waist-shaped hole that passes for bolt 7, and the diameter of the semicircle end of waist-shaped hole is than bolt 7 big 2 ~ 3mm.
Be job practices of the present utility model below, it comprises the steps:
(1), bolt, nut, steel plate are separately bought according to standard fitting or carried out blanking, processing, making by mach requirement, make top nut 4, packing ring 5, backing plate 6, nut connecting plate 8, lower nut 9, mainboard 1, floor 2.
(2), mainboard 1 and floor 2 soldering group are synthesized the anchoring base, weld seam employing continuous fillet weld seam; Simultaneously bolt 7 one ends are screwed into nut connecting plate 8 to the bottom surface and after being aided with the strengthening of welded seam of continuous subsides square ring again with lower nut 9 with continuous subsides square ring weld seam be connected, the other end and a screw thread tighten the synthetic slideway anchorage screw of clamp soldering group.
(3), after the age of concrete and intensity reach designing requirement, the vertical underrelaxation steel strand 11 of case beam are carried out the stretch-draw first time by general stretch-draw construction method entire beam tension of strand tapered anchorage and anchoring, cut off stretch-draw end steel wire bundle then to ground tackle end face 3 ~ 5cm.
(4), Hanging Basket back-pressure slideway is installed before, level up with steel plate earlier and use the mortar levelling concrete bridge deck, guarantee that its flatness error is controlled in the 5mm.
(5), Hanging Basket back-pressure slideway is placed on the bridge floor of vertical prestressing bar place anchor cup correspondence, the joint of slideway and slideway adopts annular intermittent weld connected mode, and respectively adds a bar steel plate as strengthen stopping plate temporarily at left slideway unit 10a and right slideway unit 10b lateral surface upper and lower side.
(6), lower nut is aimed at the slowly precession of vertical prestressing bar anchor cup screw thread, and keep being screwed into process middle slideway anchorage screw and overlap with the anchor cup axis.
(7), load onto the anchoring base and evenly block the support face of slideway unit, the left and right sides, the space must not be arranged.
(8), backing plate 6 is placed in above the anchoring base, and evenly be pressed in the end face of two floors, refill upper gasket 5.
(9), top nut 4 is screwed into bolt 7, executing the process of twisting comprises just and twists, twists, twists eventually three phases again, to guarantee that each anchorage node of slideway is stressed evenly, to tighten firmly.
(10), all constraints that are connected with box girder body are all removed before the Hanging Basket walking, the Hanging Basket walking adopts three 10～20t jacks to draw, and equilibrium is exerted oneself, and draws Hanging Basket to move ahead.
(11), when the Hanging Basket walking is displaced to next sections assigned address and correction, after the anchoring, back-pressure slideway anchoring composite member (the anchoring base of dismountable last sections, anchor bolts assemblies, back-pressure slideway anchoring composite member is formed in the attaching nut combination) and Hanging Basket back-pressure slideway, can adopt torque wrench that the slideway anchorage screw is unscrewed and screw out the anchor cup, pull down the anchoring base then, and use oxygen, acetylene cuts off the weld seam and the interim plate of strengthening stopping of slideway joint, and brushing one deck butter maintenance on back-pressure slideway anchoring composite member screw thread, and by the variety classes bunch of classifying.
(12), repeat above (1)～(11) step to closure of bridge structure.
More than be that better embodiment of the present utility model is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite of the utility model spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (5)
1. Hanging Basket back-pressure slideway anchor structure is characterized in that: comprising:
Hanging Basket back-pressure slideway, it comprises setting parallel to each other but left slideway separated from one another unit (10a) and right slideway unit (10b), the top of these two slideway unit is provided with the bar steel plate that they are coupled together, slideway unit, a left side (10a) all has the support face with right slideway unit (10b), and support face separately lays respectively at the right and left of the interior side-lower of Hanging Basket back-pressure slideway;
The anchoring base, it is the shelf shape member that is combined by two mainboards (1) and two floors (2) welding, left slideway unit (10a) and right slideway unit (10b) lay respectively at the right and left of anchoring base;
Anchor bolts assemblies, it comprises that the upper end is welded with screw thread and tightens the bolt of clamp (3) (7), and the following thread segment of bolt (7) is connected with nut connecting plate (8) and lower nut (9), and nut connecting plate (8) is the welding combination with lower nut (9);
Attaching nut combination, it comprises backing plate (6), be provided with top nut (4) on the backing plate (6) and be positioned at backing plate (6) and top nut (4) between packing ring (5);
The left and right sides soffit of two mainboards (1) of described anchoring base and the shape of described support face are coincide and it are pushed down, bolt (7) vertically passes the anchoring base, lower nut (9) is threaded with the screwed hole of the two times tensioning anchor cup of peripheral hardware, the top nut (4) of bolt (7) top and nut combinations is twisted and is closed, and backing plate (6) is pushed down the top of anchoring base.
2. Hanging Basket back-pressure slideway anchor structure according to claim 1 is characterized in that: described left slideway unit (10a) is i iron with right slideway unit (10b), and the support face is the edge of a wing, bottom of i iron.
3. Hanging Basket back-pressure slideway anchor structure according to claim 2, it is characterized in that: described anchoring base is welded by horizontal two mainboards (1) and vertical two floors (2), mainboard (1) and floor (2) are all upright and be welded into the shelf shape member of hollow square, and hollow position passes for bolt (7).
4. Hanging Basket back-pressure slideway anchor structure according to claim 1 is characterized in that: the square component of described packing ring (5) for being made by steel plate, its center are provided with diameter than the circular hole big 2 ~ 3mm of bolt (7), that supply bolt (7) to pass.
5. Hanging Basket back-pressure slideway anchor structure according to claim 1, it is characterized in that: the rectangular member of described backing plate (6) for making by steel plate, which is provided with the waist-shaped hole that passes for bolt (7), the diameter of the semicircle end of waist-shaped hole is than the big 2 ~ 3mm of bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011790 CN203096625U (en) | 2013-01-09 | 2013-01-09 | Suspending basket back pressure slideway anchoring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011790 CN203096625U (en) | 2013-01-09 | 2013-01-09 | Suspending basket back pressure slideway anchoring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096625U true CN203096625U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320011790 Expired - Lifetime CN203096625U (en) | 2013-01-09 | 2013-01-09 | Suspending basket back pressure slideway anchoring structure |
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| Country | Link |
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| CN (1) | CN203096625U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576223A (en) * | 2020-05-12 | 2020-08-25 | 陕西中立检测鉴定有限公司 | Main tower lower cross beam support pre-pressing device and pre-pressing method thereof |
-
2013
- 2013-01-09 CN CN 201320011790 patent/CN203096625U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576223A (en) * | 2020-05-12 | 2020-08-25 | 陕西中立检测鉴定有限公司 | Main tower lower cross beam support pre-pressing device and pre-pressing method thereof |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |