CN203256625U - Suspended basket pre-pressing counter-pulling type suspended basket system for bridge - Google Patents
Suspended basket pre-pressing counter-pulling type suspended basket system for bridge Download PDFInfo
- Publication number
- CN203256625U CN203256625U CN 201320265001 CN201320265001U CN203256625U CN 203256625 U CN203256625 U CN 203256625U CN 201320265001 CN201320265001 CN 201320265001 CN 201320265001 U CN201320265001 U CN 201320265001U CN 203256625 U CN203256625 U CN 203256625U
- Authority
- CN
- China
- Prior art keywords
- hanging basket
- suspended basket
- bridge
- side bar
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a suspended basket pre-pressing counter-pulling type suspended basket system for a bridge. The suspended basket pre-pressing counter-pulling type suspended basket system comprises a suspended basket assembly platform, a suspended basket and a steel stranded wire. The suspended basket assembly platform is provided with a middle beam and a boundary beam. The suspended basket is provided with a suspended basket front cross beam, wherein the suspended basket front cross beam is of a box structure provided with a manhole, the man hole is plugged by a steel plate, the steel plate is connected with the suspended basket front cross beam through a bolt, glass cement for sealing is coated at the position of a connecting gap between the steel plate and suspended basket front cross beam, the suspended basket front cross beam serves as a water storage structure capable of containing water after the manhole is plugged, and the water storage structure contained with the water produces downward load to the suspended basket through self weight of the water so as to achieve a function of simulating suspended basket pre-pressing. Multiple steel bars are further vertically and downward anchored between the front end of the suspended basket and the middle beam and the boundary beam in a connecting mode, and a function of simulating load exerting to the suspended basket to perform counter-pulling is achieved by tensioning the steel bars. The suspended basket system can quickly and simply simulate actual stress of the suspended basket, a construction period is shortened, and the construction cost is reduced.
Description
Technical field
The utility model relates to a kind of bridge Hanging Basket system, specifically refers to the anti-pull-type bridge Hanging Basket system of a kind of Hanging Basket precompressed.
Background technology
Dragging suspension basket is the visual plant of bridge cantilever pouring, and dragging suspension basket is finished in assembly unit and need be carried out the precompressed test before coming into operation, analyze, verify that by loading can the strength and stiffness of Hanging Basket and support meet design requirement, obtain the practical distortion parameter under load cases at different levels, eliminate nonelastic deformation, instruct follow-up construction.
Existing dragging suspension basket system, generally include the cradle assembly platform, Hanging Basket and steel strand, the cradle assembly platform has central sill and side bar, the tail end of central sill and side bar all is anchored on the Sarasota crossbeam of bridge, central sill and side bar are vertical configuration with the king-post of bridge respectively, steel strand are two groups, the front end of side bar anchors on the king-post that is positioned at Sarasota crossbeam top by two groups of steel strand inclineds to tractive, wherein, central sill and side bar be arranged in parallel, all be positioned at the below of the girder of bridge, Hanging Basket is between the girder and cradle assembly platform of bridge, and the afterbody of Hanging Basket is anchored mutually by the girder of rod iron with the bridge that is positioned at the top, and Hanging Basket has the Hanging Basket front beam, the Hanging Basket front beam is the box-structure with people hole, and Hanging Basket utilizes the cradle assembly platform to carry out assembly unit and precompressed.
Preloading method for existing Hanging Basket and support routine mainly contains sand pocket piling prepressing and two kinds of methods of water tank loading precompressed.Sand pocket preloading handling workload is large, and the test period is long, must symmetrical preloading, otherwise can cause unbalance loading to tilt or collapse; Such as rainstorm weather, also easily cause the unmanageable potential safety hazard of sand pocket suction load.Water tank loads preloading need make special water tank, because the proportion of water is less, the height of the height ultrastructure thing of water tank can not be simulated the equivalent effect effect; And higher to the rigidity requirement of the sealing of water tank and sidewall, economic benefit is low.
The test method of these two kinds of routines all exists loading and unloading length consuming time, load wayward, be subject to the such environmental effects such as temperature, rainfall, strong wind, take the shortcomings such as plant is many, pressing time is long, cost is high, wayward, easily cause load test to measure the problems such as observation data is inaccurate.Particularly large, with a varied topography for heap(ed) capacity, cross a river, to stride zanjon, Gao Dun, the current construction environment that requires of traffic is arranged be not very practical.For this reason, need a kind of new preloading method to save the duration, reducing construction cost.
The utility model content
The purpose of this utility model provides the anti-pull-type bridge Hanging Basket system of a kind of Hanging Basket precompressed, the actual loading that this Hanging Basket system can quick simple and easy simulation Hanging Basket, saving duration, reducing construction cost.
Above-mentioned purpose of the present utility model realizes by following technical solution: the anti-pull-type bridge Hanging Basket system of a kind of Hanging Basket precompressed, this Hanging Basket system comprises the cradle assembly platform, Hanging Basket and steel strand, described cradle assembly platform has central sill and side bar, the tail end of central sill and side bar all is anchored on the Sarasota crossbeam of bridge, central sill and side bar are vertical configuration with the king-post of bridge respectively, described steel strand are two groups, the front end of described side bar anchors on the king-post that is positioned at Sarasota crossbeam top by described two groups of steel strand inclineds to tractive, wherein, central sill and side bar be arranged in parallel, all be positioned at the below of the girder of bridge, described Hanging Basket is between the girder and cradle assembly platform of bridge, the afterbody of described Hanging Basket is anchored mutually by the girder of rod iron with the bridge that is positioned at the top, described Hanging Basket has the Hanging Basket front beam, the Hanging Basket front beam is the box-structure with people hole, it is characterized in that: described people hole shutoff has steel plate, be connected by bolt between steel plate and the Hanging Basket front beam, and the place, slit that is connected between steel plate and the Hanging Basket front beam scribbles glass cement and seals, described Hanging Basket front beam becomes a containment structures that can be filled with water after the shutoff of people hole, and the deadweight with water after described containment structures is filled with water produces downward load to reach the function of simulation precompressed Hanging Basket to Hanging Basket; Also being anchored straight down between described Hanging Basket front end and central sill and the side bar has many reinforcing bars, by reinforcing bar is carried out stretch-draw, reaches simulation to the anti-function of drawing of Hanging Basket load application.
In the utility model, the afterbody of described Hanging Basket by two diameters is
The 40Cr rod iron be anchored mutually with the girder of bridge that is positioned at the top
In the utility model, many reinforcing bars that are anchored between described Hanging Basket front end and central sill and the side bar are diameter and are
Finish rolling deformed bar.
Hanging Basket system of the present utility model is carried out simultaneously by the anti-mode of drawing during the Hanging Basket precompressed, and its form is the anti-stressing conditions that draws when acting on simultaneously on the Hanging Basket simulation Hanging Basket practice of construction state, observes and analyzes the Hanging Basket distortion and whether meet designing requirement with stressed.
Counterweight is the design feature that takes full advantage of Hanging Basket front beam steel box structure, adopt steel plate complete closed Hanging Basket front beam, make the Hanging Basket front beam be subject to the lower load of a direction pouring water in the front beam, the diaphragm load was carried in the stressing conditions on the Hanging Basket front beam when simulation girder was built.Anti-principle of drawing is to wait to adopt moment Method, takes full advantage of the cradle assembly platform, settles shoulder pole girder at Bailey beam side bar, central sill and the Hanging Basket of platform, adopts
Load was carried in the stressing conditions on Hanging Basket longeron and the front beam when finish rolling deformed bar and Hanging Basket were built drawing to simulate girder.
Hanging Basket system of the present utility model has economical and efficient, safe and reliable advantage.The utility model loading structure is simple, and is stressed clear and definite, stress simulation closing to reality; Precompressed can be finished within half a day and can repeatedly be loaded, and is subjected to such environmental effects little, and 4～5 days at least consuming time of conventional preloading method, as many as can reach one month.Can well save the duration, can produce good economic benefit again, and test effect be better.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
Fig. 1 is the elevation of the utility model Hanging Basket system;
Fig. 2 is the lateral view of the utility model Hanging Basket system;
Fig. 3 is the structure chart of Hanging Basket in the utility model Hanging Basket system;
Fig. 4 is the force analysis schematic diagram of Hanging Basket in the utility model Hanging Basket system.
Description of reference numerals
1, king-post; 2, Sarasota crossbeam; 3, side bar; 4, central sill; 5, girder;
6, Hanging Basket; 7,40Cr rod iron; 8, Hanging Basket front beam; 9, finish rolling deformed bar;
10, steel strand; 11, Ren Dong; 12, steel plate.
The specific embodiment
The anti-pull-type bridge Hanging Basket system of a kind of Hanging Basket precompressed as shown in Figures 1 to 4, the Hanging Basket system is utilized the setting of Sarasota structure, this Hanging Basket system comprises the cradle assembly platform, Hanging Basket 6 and steel strand 10, the cradle assembly platform has central sill 4 and side bar 3, the tail end of central sill 4 and side bar 3 all is anchored on the Sarasota crossbeam 2 of bridge, central sill 4 and side bar 3 are vertical configuration with the king-post 1 of bridge respectively, steel strand 10 are two groups, the front end of side bar 3 anchors on the king-post 1 that is positioned at Sarasota crossbeam 2 tops by two groups of steel strand, 10 oblique tractives, wherein, central sill 4 and side bar 3 be arranged in parallel, all be positioned at the below of the girder 5 of bridge, Hanging Basket 6 is between the girder 5 and cradle assembly platform of bridge, and the afterbody of Hanging Basket 6 is anchored mutually by the girder 5 of rod iron with the bridge that is positioned at the top, and concrete syndeton is: the afterbody of Hanging Basket 6 by two diameters is
40Cr rod iron 7 be anchored mutually with the girder 5 of bridge that is positioned at the top, Hanging Basket 6 carries out spelling at the cradle assembly platform, Hanging Basket 6 has Hanging Basket front beam 8, Hanging Basket front beam 8 is for having the box-structure in people hole 11,11 shutoff of people hole have steel plate 12, be connected by bolt between steel plate 12 and the Hanging Basket front beam 8, and the place, slit that is connected between steel plate 12 and the Hanging Basket front beam 8 scribbles glass cement and seals, Hanging Basket front beam 8 becomes a containment structures that can be filled with water after 11 shutoff of people hole, and the deadweight with water after containment structures is filled with water produces downward load to reach the function of simulation precompressed Hanging Basket 6 to Hanging Basket 6; Also being anchored straight down between Hanging Basket 6 front ends and central sill 4 and the side bar 3 has many reinforcing bars, by reinforcing bar is carried out stretch-draw, reaches simulation to the anti-function of drawing of Hanging Basket 6 load applications.
In the present embodiment, many reinforcing bars that are anchored between Hanging Basket 6 front ends and central sill 4 and the side bar 3 are diameter and are
Finish rolling deformed bar 9.Cradle assembly platform front end is by two groups every group five
The king-post 1 phase anchoring of steel strand 10 and bridge.
Containment structures in the present embodiment is to utilize the design feature transformation of the Hanging Basket front beam 8 of existing Hanging Basket 6 to form.People hole 11 with steel plate 12 sealing Hanging Basket front beams, 11 left side steel plates 12 are opened a flowing water Valve in the people hole of Hanging Basket 6 front beams, open a water inlet and an exhaust opening at Hanging Basket front beam top board, then the Hanging Basket front beam 8 with Hanging Basket 6 becomes the containment structures with water storage function.
In the present embodiment, the power that finish rolling deformed bar 9 stretch-draw apply Hanging Basket 6 is shown in F1 and F2 among Fig. 4; The power that with the deadweight of water Hanging Basket 6 is produced downward load after containment structures is filled with water is shown in the F3 among Fig. 4, and the downward load force that with the deadweight of water Hanging Basket 6 is produced after containment structures is filled with water is similar to the downward load force that is subject to when semi girder loads.
Device of the present utility model, the implementation process of " counterweight+counter drawing " Hanging Basket precompressed is as follows:
(1) counterweight
Counterweight is pouring water in the Hanging Basket front beam, with the water deadweight to Hanging Basket produce lower to load to reach the effect of simulation Hanging Basket precompressed, mainly be divided into following steps and finish:
1., adopt steel plate sealing Hanging Basket front beam people hole, steel plate adopts bolt to be connected with Hanging Basket, the slit is located the employing glass cement and is sealed, the Hanging Basket front beam after the shutoff of people hole becomes a containment structures that can be filled with water;
2., open a flowing water Valve at Hanging Basket front beam people hole left side steel plate, valve must be opened in Hanging Basket front beam bottom, so that the Hanging Basket precompressed can be drained with Hanging Basket ponding after finishing, guarantees the subsidiary and outer weight of Hanging Basket; Open a water inlet and an exhaust opening at Hanging Basket front beam top board;
3., adopting high-pressure pump to connect water-supply-pipe fills with water into the Hanging Basket front beam, until water level arrives till the Hanging Basket front beam top board 4cm place, because Hanging Basket front beam pin joint position leaks, after reaching design load, water level will reduce the beam of pouring water, keep Hanging Basket front beam water level balance, guarantee that water level is in the design load state.
(2) counter drawing
Anti-daraf(reciprocal of farad) is to adopt
The fining twisted steel two ends are anchored on Bailey beam and the Hanging Basket, and are right
Fining twisted steel carries out stretch-draw, and concrete gravity mainly is divided into following steps and finishes the effect of Hanging Basket load application when reaching the fast section of simulation 0-2# and building:
1., Bailey beam central sill bottom shoulder pole girder, shoulder pole girder employing 2I20a worker steel are installed;
2., Bailey beam side bar bottom shoulder pole girder, shoulder pole girder employing 2I56a worker steel are installed;
3., shoulder pole girder on the attached English truss of Hanging Basket front beam is installed, shoulder pole girder adopts 2I20a worker's steel, every group of shoulder pole girder load is on 3 groups of English trusses;
4., Hanging Basket Curved beam top shoulder pole girder, shoulder pole girder employing 2I56a worker steel are installed;
5., central sill, side bar are installed
Fining twisted steel;
6., stretch-draw central sill, side bar
Fining twisted steel.The order that loads is that the simulated field concrete is built order, by longeron to crossbeam, by front end to the rear end, on the crossbeam by both sides to the centre.During stretch-draw side bar and central sill tension tonnage by 5 tonnes of increments repeatedly stretch-draw guarantee that to builder's tonnage side bar and central sill shellfish thunder elastic deformation difference are within the design safety scope.
(3) Hanging Basket unloading
Unloading is divided into the counterweight unloading and reaches
Fining twisted steel is put and is opened.
1, counterweight unloading
Open Hanging Basket front beam weep hole valve, the Self-tipping water ballast(ing), water-supply-pipe is drained water along king-post.
2,
Fining twisted steel is put and is opened and dismounting
With side bar and central sill
Fining twisted steel is put open fully, removes
The anchor bolt of fining twisted steel lower end shoulder pole girder is removed
Fining twisted steel; Remove Bailey beam bottom shoulder pole girder, adopt hoist engine to transfer during dismounting; Remove Hanging Basket top shoulder pole girder, adopt tower crane to transfer during dismounting.
Above-described embodiment of the present utility model is not the restriction to the utility model protection domain; embodiment of the present utility model is not limited to this; all this kind is according to foregoing of the present utility model; ordinary skill knowledge and customary means according to this area; do not breaking away under the above-mentioned fundamental technics thought of the utility model prerequisite; modification, replacement or the change of other various ways that the utility model said structure is made all should drop within the protection domain of the present utility model.
Claims (3)
1. the anti-pull-type bridge Hanging Basket system of a Hanging Basket precompressed, this Hanging Basket system comprises the cradle assembly platform, Hanging Basket and steel strand, described cradle assembly platform has central sill and side bar, the tail end of central sill and side bar all is anchored on the Sarasota crossbeam of bridge, central sill and side bar are vertical configuration with the king-post of bridge respectively, described steel strand are two groups, the front end of described side bar anchors on the king-post that is positioned at Sarasota crossbeam top by described two groups of steel strand inclineds to tractive, wherein, central sill and side bar be arranged in parallel, all be positioned at the below of the girder of bridge, described Hanging Basket is between the girder and cradle assembly platform of bridge, the afterbody of described Hanging Basket is anchored mutually by the girder of rod iron with the bridge that is positioned at the top, described Hanging Basket has the Hanging Basket front beam, the Hanging Basket front beam is the box-structure with people hole, it is characterized in that: described people hole shutoff has steel plate, be connected by bolt between steel plate and the Hanging Basket front beam, and the place, slit that is connected between steel plate and the Hanging Basket front beam scribbles glass cement and seals, described Hanging Basket front beam becomes a containment structures that can be filled with water after the shutoff of people hole, and the deadweight with water after described containment structures is filled with water produces downward load to reach the function of simulation precompressed Hanging Basket to Hanging Basket; Also being anchored straight down between described Hanging Basket front end and central sill and the side bar has many reinforcing bars, by reinforcing bar is carried out stretch-draw, reaches simulation to the anti-function of drawing of Hanging Basket load application.
2. the anti-pull-type bridge Hanging Basket system of Hanging Basket precompressed according to claim 1, it is characterized in that: the afterbody of described Hanging Basket by two diameters is
The 40Cr rod iron be anchored mutually with the girder of bridge that is positioned at the top.
3. the anti-pull-type bridge Hanging Basket system of Hanging Basket precompressed according to claim 1, it is characterized in that: many reinforcing bars that are anchored between described Hanging Basket front end and central sill and the side bar are diameter and are
Finish rolling deformed bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320265001 CN203256625U (en) | 2013-05-15 | 2013-05-15 | Suspended basket pre-pressing counter-pulling type suspended basket system for bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320265001 CN203256625U (en) | 2013-05-15 | 2013-05-15 | Suspended basket pre-pressing counter-pulling type suspended basket system for bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203256625U true CN203256625U (en) | 2013-10-30 |
Family
ID=49469204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320265001 Expired - Lifetime CN203256625U (en) | 2013-05-15 | 2013-05-15 | Suspended basket pre-pressing counter-pulling type suspended basket system for bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203256625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966955A (en) * | 2014-05-23 | 2014-08-06 | 中交第三公路工程局有限公司 | Construction method with front supporting point basket hanging and reverse supporting point preloading |
| CN112921829A (en) * | 2021-03-15 | 2021-06-08 | 陕西华山路桥集团有限公司 | Prepressing device for overpass bridge hanging basket construction and prepressing loading method thereof |
-
2013
- 2013-05-15 CN CN 201320265001 patent/CN203256625U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103966955A (en) * | 2014-05-23 | 2014-08-06 | 中交第三公路工程局有限公司 | Construction method with front supporting point basket hanging and reverse supporting point preloading |
| CN103966955B (en) * | 2014-05-23 | 2015-10-28 | 中交第三公路工程局有限公司 | The method that the anti-fulcrum preloading of a kind of Hanging basket on front support is built |
| CN112921829A (en) * | 2021-03-15 | 2021-06-08 | 陕西华山路桥集团有限公司 | Prepressing device for overpass bridge hanging basket construction and prepressing loading method thereof |
| CN112921829B (en) * | 2021-03-15 | 2022-11-15 | 陕西华山路桥集团有限公司 | Prepressing device for overpass bridge hanging basket construction and prepressing loading method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202881856U (en) | Concrete pouring support prepressing device | |
| CN103061264B (en) | Method and device for pre-pressing high-position support single column in water | |
| CN203923924U (en) | No. 0 section bracket prepressing device | |
| CN103255726A (en) | Construction method for continuous beam and arch combination bridge | |
| CN106758871A (en) | A kind of full cantilever construction prestressed concrete continuous rigid-framed bridge and its construction method | |
| CN103362074B (en) | Bridge cantilever box girder construction hanging basket pre-pressing loading device | |
| CN106948276A (en) | A kind of method of cast-in-place box beam bracket integral demounting | |
| CN102154990B (en) | Electing method for side span overhang-middle span cable-stayed three-tower self-anchored type combination suspension bridge | |
| CN205691429U (en) | A kind of tunnel net shell indoor model test device | |
| CN203256625U (en) | Suspended basket pre-pressing counter-pulling type suspended basket system for bridge | |
| CN102767289B (en) | Asymmetric and integrated lifting construction method for large scale grid structure | |
| CN210151596U (en) | Integrated construction system for side-span cast-in-place section and closure section of high-pier continuous beam | |
| CN104358213B (en) | Consider the firm structure limited bracket of concrete triangle of battered leg effect of contraction with to pull bar combination constructing method thereof | |
| CN104314013B (en) | Two Cantilever Construction Methods of a kind of pole asymmetrical array beam | |
| CN208151865U (en) | A kind of introversion formula steel case arch bridge integrally promotes simulation Lift-on/Lift-off System | |
| CN104060836B (en) | The lifting installation method of high curved surface rack | |
| CN102877657B (en) | Large-span H-shaped plane composite structure beam string upper-air cable replacement construction method | |
| CN102587280B (en) | Main tower area steel truss girder erection method of base support auxiliary frame beam crane and base support | |
| CN204475179U (en) | Bridge construction Cast-in-situ Beam, bent cap, binder concrete attaching prestressed girder support | |
| CN104746434B (en) | Closure segment formwork system without dismantling outer formwork | |
| CN207619860U (en) | A kind of beam bridge ruggedized construction | |
| CN103981799B (en) | A kind of concrete filled steel tube opens string stiff beam and construction method thereof | |
| CN110656723B (en) | Rail support for sliding construction of cylindrical arch shell roof | |
| CN203729211U (en) | Suspension type curved bridge panel cast-in-situ formwork | |
| CN206874293U (en) | Subway tunnel soft oil support device |
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: 20131030 |