CN201077957Y - Steel truss bridge closure top-pulling device - Google Patents
Steel truss bridge closure top-pulling device Download PDFInfo
- Publication number
- CN201077957Y CN201077957Y CNU2007200864292U CN200720086429U CN201077957Y CN 201077957 Y CN201077957 Y CN 201077957Y CN U2007200864292 U CNU2007200864292 U CN U2007200864292U CN 200720086429 U CN200720086429 U CN 200720086429U CN 201077957 Y CN201077957 Y CN 201077957Y
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- CN
- China
- Prior art keywords
- jacking
- pulling
- closure
- seat
- distance
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- Expired - Lifetime
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Abstract
The utility model provides a jacking and pulling device for the closure of a steel truss bridge, which relates to a jacking and pulling device for adjusting the distance between the components at the two sides of the closure point during the middle-span closure of steel truss bridge. The utility model comprises a jacking and pulling seat and a supporting seat, a jacking bearing surface and a pulling bearing surface are arranged at the both sides of the pulling bearing seat, a mounting hole of the supporting seat, a high strength bolt hole is arranged at one end, a supporting surface is arranged at the middle part of the supporting seat, and a high strength bolt hole is arranged at the lower end. When the steel truss bridge is required to be closed, the jacking and pulling seat and the supporting seat are respectively installed on the chord rods at two sides of the closure point through the high strength bolts, firstly whether the distance between the chord rods is measured to see whether the distance is less or higher than the theoretic distance required for closing, to decide whether the utility model is installed at the jacking position or the pulling position. Through jacking or pulling by the utility model, the distance of the closure point reaches the desired theoretic value, and then the rods can be joined smoothly. The quantity of the jacking and pulling seat and the supporting seat can be depended upon the jacking and pulling force required by the closing. The device is successfully applied Wanzhou Yangtze River Bridge of Yiwan Railway.
Description
Technical field
The utility model relates to a kind of steel girder bridge span centre closing jacking-drawing device.
Background technology
Steel girder bridge in railway, highway and the municipal engineering, when adopting the mounting method of span centre closure, because of the needed theoretical not necessarily of distance between mouthful both sides rod member of closure before joining the two sections of a bridge, etc, then need to adjust by both sides, the involutory Longkou of closing jacking-drawing facility closure rod member, make between both sides closure rod member apart from reaching needed theoretical, to satisfy the closure requirement, final realization closure smoothly.Steel girder bridge is when closure, horizontal relative displacement Δ X between the closure mouthful both sides chord member generally can adjust by whole roof fall of beam body or the flexible mode of adjusting of temperature, but when the displacement that needs to adjust is little, adopt the whole roof fall of beam body to seem that operation easier is big and wayward, adopt the flexible method of adjusting of temperature to be subjected to the influence of weather condition (mainly being temperature) again.
Summary of the invention
The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of steel truss bridge closing jacking-drawing device that is applicable to that steel girder bridge both sides horizontal relative displacement Δ X adjustment amount is little, simple for use, precision is high.
The implementation of the utility model purpose is, steel truss bridge closing jacking-drawing device, form by top pulling seat 1 and supporting base 2, the both sides of top pulling seat 1 are provided with holds end face 3 and bears face 4, there is supporting base installing hole 5 centre, one end is provided with high-strength bolt hole 6, in the middle of the supporting base 2 bearing surface 7 is arranged, and the lower end is provided with high-strength bolt hole 6.
When steel girder bridge need join the two sections of a bridge, etc, top pulling seat 1 and supporting base 2 are by inserting in the high-strength bolt hole 6 and the high-strength bolt of tightening 10 is installed in respectively on the chord member rod member 8 of closure mouthful both sides, the distance of measuring 8 of closure mouthful both sides closure rod members earlier is the theoretical that needs less than or greater than closure, determines that the utility model is mounted in position, top state and still draws a state.
When theoretical that the distance of 8 of closure mouthful both sides closure rod members needs less than closure, hold end face 3 with what the bearing surface 7 of supporting base 2 faced top pulling seat 1, jack 9 places between the bearing surface 7 that holds end face 3 and supporting base 2 of top pulling seat 1, jack 9 is executed the top to bearing surface 7, make top pulling seat and supporting base drive a closure mouthful both sides closure rod member 8 respectively and move dorsad, mouthful distance of will joining the two sections of a bridge, etc increases to needed theoretical.
When theoretical that the distance of 8 of closure mouthful both sides closure rod members needs greater than closure, the bearing surface 7 of supporting base 2 is faced the face that bears 4 installations of top pulling seat 1, jack 9 places between the face that bears 4 of the bearing surface 7 of supporting base 2 and top pulling seat 1, this moment, jack 9 was executed the top to the face of bearing 4, make top pulling seat and supporting base drive a closure mouthful both sides closure rod member 8 respectively and move in opposite directions, mouthful distance of will joining the two sections of a bridge, etc is decreased to needed theoretical.
Can determine the quantity of required top of the present utility model pulling seat 1 and supporting base 2 according to the join the two sections of a bridge, etc size of the structural form of rod member 8 and top pulling force of both sides during construction.
The utility model is able to successfully on probation when striding closure in should ten thousand railways, ten thousand governor Jiang Daqiao, under the condition that does not change closure internode member length, drawing both sides, the involutory Longkou of facility arch rib to wind up by the top adjusts, make it arrive the closure requirement, realize the closure of span centre smoothly, reach advanced international level.
Description of drawings
Fig. 1 is a top pulling seat structure vertical view
Fig. 2 is that the A-A of Fig. 1 is to view
Fig. 3 is a supporting base structure vertical view
Fig. 4 is that the B-B of Fig. 3 is to view
Fig. 5 is that top pulling seat and supporting base are to top installment state vertical view
Fig. 6 is that the C-C of Fig. 5 is to view
Fig. 7 is that top pulling seat and supporting base are to drawing the installment state vertical view
Fig. 8 is that the D-D of Fig. 7 is to view
The specific embodiment
The utility model is made up of the supporting base 2 shown in the top pulling seat 1 shown in Fig. 1,2 and Fig. 3,4.The both sides of top pulling seat 1 are provided with holds end face 3 and bears face 4, and the centre has supporting base installing hole 5, one ends to be provided with high-strength bolt hole 6, in the middle of the supporting base 2 bearing surface 7 is arranged, and the lower end is provided with high-strength bolt hole 6.
With reference to Fig. 5,6, when theoretical that the distance of 8 of closure mouthful both sides closure rod members needs less than closure, hold end face 3 with what the bearing surface 7 of supporting base 2 faced top pulling seat 1, jack 9 places between the bearing surface 7 that holds end face 3 and supporting base 2 of top pulling seat 1, jack 9 is executed the top to bearing surface 7, make top pulling seat and supporting base drive a closure mouthful both sides closure rod member 8 respectively and move dorsad, mouthful distance of will joining the two sections of a bridge, etc increases to needed theoretical, can join the two sections of a bridge, etc.
With reference to Fig. 7,8, when theoretical that the distance of 8 of closure mouthful both sides closure rod members needs greater than closure, the bearing surface 7 of supporting base 2 is faced the face that bears 4 installations of top pulling seat 1, jack 9 places between the face that bears 4 of the bearing surface 7 of supporting base 2 and top pulling seat 1, this moment, jack 9 was executed the top to the face of bearing 4, make top pulling seat and supporting base drive a closure mouthful both sides closure rod member 8 respectively and move in opposite directions, mouthful distance of will joining the two sections of a bridge, etc is decreased to needed theoretical, can join the two sections of a bridge, etc.
Adopting the utility model for steel girder bridge is that the little but required precision of the horizontal relative displacement Δ of a kind of simple and easy to do mode, particularly both sides X adjustment amount more can be brought into play its advantage when high.
Claims (1)
1. steel truss bridge closing jacking-drawing device, it is characterized in that forming by top pulling seat (1) and supporting base (2), the both sides of top pulling seat (1) are provided with holds end face (3) and bears face (4), there is supporting base installing hole (5) centre, one end is provided with high-strength bolt hole (6), in the middle of the supporting base (2) bearing surface (7) is arranged, the lower end is provided with high-strength bolt hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200864292U CN201077957Y (en) | 2007-08-13 | 2007-08-13 | Steel truss bridge closure top-pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200864292U CN201077957Y (en) | 2007-08-13 | 2007-08-13 | Steel truss bridge closure top-pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201077957Y true CN201077957Y (en) | 2008-06-25 |
Family
ID=39570013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200864292U Expired - Lifetime CN201077957Y (en) | 2007-08-13 | 2007-08-13 | Steel truss bridge closure top-pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201077957Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929054A (en) * | 2015-06-03 | 2015-09-23 | 中交第二航务工程局有限公司 | Method for rapid closure and position adjustment of steel trussed cable-stayed bridge |
| CN105735130A (en) * | 2016-03-01 | 2016-07-06 | 中铁大桥勘测设计院集团有限公司 | Construction method of inserting type truss member with friction surface self-protection function |
| CN112030764A (en) * | 2020-09-04 | 2020-12-04 | 中铁六局集团有限公司 | Top-pulling device and method for adjusting closure opening of steel truss girder |
-
2007
- 2007-08-13 CN CNU2007200864292U patent/CN201077957Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929054A (en) * | 2015-06-03 | 2015-09-23 | 中交第二航务工程局有限公司 | Method for rapid closure and position adjustment of steel trussed cable-stayed bridge |
| CN105735130A (en) * | 2016-03-01 | 2016-07-06 | 中铁大桥勘测设计院集团有限公司 | Construction method of inserting type truss member with friction surface self-protection function |
| CN112030764A (en) * | 2020-09-04 | 2020-12-04 | 中铁六局集团有限公司 | Top-pulling device and method for adjusting closure opening of steel truss girder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20070813 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |