CN203755135U - Vibration damping device applied to bridge joining construction - Google Patents
Vibration damping device applied to bridge joining construction Download PDFInfo
- Publication number
- CN203755135U CN203755135U CN201420010966.9U CN201420010966U CN203755135U CN 203755135 U CN203755135 U CN 203755135U CN 201420010966 U CN201420010966 U CN 201420010966U CN 203755135 U CN203755135 U CN 203755135U
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- bridge
- iron
- bolt
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000013016 damping Methods 0.000 title abstract 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 83
- 229910052742 iron Inorganic materials 0.000 claims description 38
- 239000006096 absorbing agent Substances 0.000 claims description 15
- 239000004567 concrete Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a vibration damping device applied to a bridge joining construction. The vibration damping device comprises a connecting device and a fixing device, wherein the connecting device comprises a top I-shaped steel that is transversally arranged on the upper surface of a splicing portion of new and old bridges, and a bottom I-shaped steel that is transversally arranged on the lower surface of the splicing portion of the new and old bridges; a steel cushion block is arranged on the lower surface of the top I-shaped steel; the fixing device comprises a U-shaped bolt that connects the top I-shaped steel with the bottom I-shaped steel, and a nut that is matched with the U-shaped bolt. The vibration damping device applied to the bridge joining construction disclosed by the utility model has the beneficial effects that: with use of a resonant bar, the new and old bridges vibrate together, so that a disturbing stress is eliminated, and quality of concretes at wet joints at the splicing portion is guaranteed; the vibration damping device is simple in a whole structure, strong in operability, easy to be dismounted, beneficial for shortening a splicing construction period, large in rigidity, reliable in stability, low in material consumption, convenient to be moved and low in construction cost, and is capable of performing splicing construction safely and reliably.
Description
Technical field
The utility model relates to vibration absorber in a kind of Bridge Concatenation Construction.
Background technology
In the old and new's Bridge Concatenation Construction process, at the wet seam concrete in splicing position, build the initial stage, because wet seam concrete strength is lower, must temporarily interrupt old bridge traffic operation, prevent that vehicle from causing old bridge vibrations by old bridge pavement and new bridge does not shake and causes wet seam concrete internal soundness hidden danger.Interrupt old bridge traffic operation and have two kinds of traffic navigation schemes, a kind of scheme is to left and right width bridge leading in turn while there is left and right width old bridge, when the left width bridge of concatenation construction, by right width old bridge leading, be up-down traffic, the right width bridge of concatenation construction again after left width bridge possesses transportation condition is up-down traffic by left width bridge leading simultaneously; First scheme is no matter whether there is left and right width old bridge, all considers the online outer traffic navigation that carries out.The first scheme major defect is that the whole duration is longer, and first scheme need to dock with other roads construction increase and change road temporarily, has not only increased expense but also other road traffics are caused to very large impact.This just requires to take measures to overcome the bottleneck of duration and cost, can guarantee high-quality fast and safe construction, can realize maximizing the benefits again.
Utility model content
The purpose of this utility model is to provide vibration absorber in a kind of Bridge Concatenation Construction, to overcome currently available technology above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
Vibration absorber in a kind of Bridge Concatenation Construction, comprise linkage and fastening devices, described linkage comprises the top i iron of the upper surface that is horizontally installed on the old and new's bridge jointing position and the bottom i iron that is horizontally installed on the soffit at the old and new's bridge jointing position, the soffit of described top i iron is provided with steel cushion block, and described fastening devices comprises connection described top i iron and the U-bolt of bottom i iron and the nut matching with U-bolt.
Further, described U-bolt is arranged on the wing plate position of the old and new's bridge.
Further, described top i iron and bottom i iron are I 22a type i iron.
Further, described U-bolt is the plain bar of φ 22, and the top of described U-bolt is screw thread structure.
Further, between described nut and top i iron, be provided with fore shaft steel plate.
Further, described U-bolt is provided with PVC sleeve pipe in wet seam areas.
The beneficial effects of the utility model are: use after resonant beam, the old and new's bridge shakes has together eliminated Disturbance stress, have guaranteed the quality of the wet seam concrete in splicing position, and overall structure is simple, workable; Vibration absorber easy disassembling, is conducive to shorten the concatenation construction duration, and rigidity is large, stability is reliable, can be safe and reliable carry out concatenation construction; Material consumption is little, turnover is convenient, and construction cost is low.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the cross-sectional configuration schematic diagram of vibration absorber in the Bridge Concatenation Construction described in the utility model embodiment;
Fig. 2 is the longitudinal plane structure schematic diagram of vibration absorber in the Bridge Concatenation Construction described in the utility model embodiment.
In figure:
1, top i iron; 2, bottom i iron; 3, steel cushion block; 4, U-bolt; 5, nut; 6, fore shaft steel plate.
The specific embodiment
As shown in Figure 1-2, vibration absorber in a kind of Bridge Concatenation Construction described in the utility model embodiment, comprise linkage and fastening devices, described linkage comprises the top i iron 1 of the upper surface that is horizontally installed on the old and new's bridge jointing position and the bottom i iron 2 that is horizontally installed on the soffit at the old and new's bridge jointing position, the soffit of described top i iron 1 is provided with steel cushion block 3, and described fastening devices comprises connection described top i iron 1 and the U-bolt 4 of bottom i iron 2 and the nut 5 matching with U-bolt 4; Described U-bolt 4 overlaps for every group 2～4, is separately positioned on the wing plate position of the old and new's bridge, and top i iron 1 and bottom i iron 2 are connected and fixed to one group of resonant beam of formation.At the old and new's bridge jointing position along the longitudinal every 1.5m～2m of bridge apart from arranging one group of resonant beam, by some groups of resonant beam, the old and new's bridge is connected to form to integral body temporarily, when vehicle to run old bridge causes vibrations, by resonant beam, vibrations are passed to new bridge, the old and new's bridge are shaken together and form resonance body.
Described top i iron 1 and bottom i iron 2 are preferably I 22a type i iron, and length is for stretching into each 50cm of the old and new's beam body scope.Each of every group of i iron fixture upper and lower surface, along the longitudinal every 1.5m～2m of bridge apart from arranging one group; Described U-bolt 4 is the plain bar of φ 22, and the top of described U-bolt 4 is screw thread structure; U-shaped screw rod bottom width adapts to i iron width, highly meets two i iron needs of tie-beam body upper and lower surface; Nut is the common GB nut of φ 22; Between described nut 5 and top i iron 1, be provided with fore shaft steel plate 6; Preferably, fore shaft steel plate 6 thickness are 1cm at least, wide 5cm, and corresponding screw position eyelet is φ 24.Described U-bolt 4 is provided with PVC sleeve pipe in wet seam areas.
During concrete installation, vibration absorber bottom i iron 2 is close to beam body soffit, and top i iron 1 is placed on beam body upper surface, and the old and new's bridge floor exists the discrepancy in elevation to adopt steel cushion block 3 to adjust.The installation quantity of every group of resonant beam U-bolt 4 determines according to beam sheet type and wet joint gap, for the general 60cm of hollowcore slab Liangqi beam height left and right, about wing plate width 30cm, in wet seam areas, arranges every group two cover; For the general 80cm～120cm of its its beam height of cast-in-situ box girder, wing plate width 80cm～100cm, except arranging in wet seam areas every group two cover, also need to apart from the boring of beam body 10cm position, a set of U-bolt 4 be respectively installed at the old and new's bridge wing plate, guarantee that the old and new's bridge clipping is firm; U-bolt 4 increases PVC sleeve pipe in wet seam areas, is convenient to remove.
The main points that should be noted during construction have: when i iron resonant beam is installed, must tighten U-bolt 4, guarantee that the old and new's bridge clipping is firm; I iron resonant beam installs the resonance effect of palpus field test the old and new bridge, adjusts in time the longitudinal pitch of resonant beam when not enough; Old bridge two tracks are changed and be that a track makes vehicle travel near old bridge inner side, vehicle-speed limit is 40Km/h, effectively reduce the vibration amplitude that vehicle causes at wet seaming position, in advance the local hollow irregular terrain of bridge floor is repaired to levelling simultaneously, prevent that vehicle from causing larger vibrations because jolting.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (6)
1. vibration absorber in a Bridge Concatenation Construction, comprise linkage and fastening devices, it is characterized in that: described linkage comprises the top i iron (1) of the upper surface that is horizontally installed on the old and new's bridge jointing position and the bottom i iron (2) that is horizontally installed on the soffit at the old and new's bridge jointing position, and the soffit of described top i iron (1) is provided with steel cushion block (3); Described fastening devices comprises connection described top i iron (1) and the U-bolt (4) of bottom i iron (2) and the nut (5) matching with U-bolt (4).
2. vibration absorber in a kind of Bridge Concatenation Construction according to claim 1, is characterized in that: described U-bolt (4) is arranged on the wing plate position of the old and new's bridge.
3. vibration absorber in a kind of Bridge Concatenation Construction according to claim 2, is characterized in that: described top i iron (1) and bottom i iron (2) are
i22a type i iron.
4. vibration absorber in a kind of Bridge Concatenation Construction according to claim 3, is characterized in that: described U-bolt (4) is the plain bar of φ 22, and the top of described U-bolt (4) is screw thread structure.
5. vibration absorber in a kind of Bridge Concatenation Construction according to claim 4, is characterized in that: between described nut (5) and top i iron (1), be provided with fore shaft steel plate (6).
6. vibration absorber in a kind of Bridge Concatenation Construction according to claim 5, is characterized in that:
Described U-bolt (4) is provided with PVC sleeve pipe in wet seam areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010966.9U CN203755135U (en) | 2014-01-04 | 2014-01-04 | Vibration damping device applied to bridge joining construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420010966.9U CN203755135U (en) | 2014-01-04 | 2014-01-04 | Vibration damping device applied to bridge joining construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203755135U true CN203755135U (en) | 2014-08-06 |
Family
ID=51250432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420010966.9U Expired - Lifetime CN203755135U (en) | 2014-01-04 | 2014-01-04 | Vibration damping device applied to bridge joining construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203755135U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331667A (en) * | 2019-07-02 | 2019-10-15 | 中交二公局东萌工程有限公司 | When being open to traffic under execution conditions bridge joining method |
| CN110607747A (en) * | 2019-10-28 | 2019-12-24 | 孙志磊 | Bridge deck continuous structure of steel-concrete combined beam bridge |
| CN111877194A (en) * | 2020-09-08 | 2020-11-03 | 浙江世润建创科技发展有限公司 | Manufacturing and using method of splicing clamp for new and old bridges |
| CN114414784A (en) * | 2022-03-30 | 2022-04-29 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and simulation method |
-
2014
- 2014-01-04 CN CN201420010966.9U patent/CN203755135U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331667A (en) * | 2019-07-02 | 2019-10-15 | 中交二公局东萌工程有限公司 | When being open to traffic under execution conditions bridge joining method |
| CN110607747A (en) * | 2019-10-28 | 2019-12-24 | 孙志磊 | Bridge deck continuous structure of steel-concrete combined beam bridge |
| CN111877194A (en) * | 2020-09-08 | 2020-11-03 | 浙江世润建创科技发展有限公司 | Manufacturing and using method of splicing clamp for new and old bridges |
| CN114414784A (en) * | 2022-03-30 | 2022-04-29 | 中交第一公路勘察设计研究院有限公司 | Bridge splicing joint vehicle-mounted deformation difference simulation test device and simulation method |
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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: 20140806 |