CN207210932U - Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means - Google Patents
Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means Download PDFInfo
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- CN207210932U CN207210932U CN201721152638.2U CN201721152638U CN207210932U CN 207210932 U CN207210932 U CN 207210932U CN 201721152638 U CN201721152638 U CN 201721152638U CN 207210932 U CN207210932 U CN 207210932U
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- steel
- steel plate
- floorings
- steel pipe
- truss
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Abstract
It the utility model is related to a kind of prefabricated bridge space concrete filled steel tube truss combination beamss attachment means, including steel pipe truss, it is characterised in that：Also include the floorings that the polylith independence on steel pipe truss top is longitudinally sequentially laid on along bridge, two detents coordinated one by one with two steel pipes that wind up of steel pipe truss are provided with the lower surface of every piece of floorings, top half and the detent of the steel pipe that winds up form cambered surface and contacted；Floorings upper surface is provided with the upper groove for anchoring prestress reinforcing bar, it is fixed with upper groove for the adjustable composite steel plate needed for anchoring prestress reinforcing bar, steel strand wires mounting hole is provided with adjustable composite steel plate, anchorage is installed on combined steel plate, filled in upper groove with filler closely knit；Winding up, steel pipe bottom correspondence position is welded with arc steel conduit, and presstressed reinforcing steel passes through out of curved catheter.The utility model reduce difficulty of construction, improve floorings construction quality and shorten the duration, improve workmen's security the advantages that.
Description
Technical field
The utility model belongs to space concrete filled steel tube truss combination beamss technical field, more particularly to a kind of prefabricated bridge floor
Plate space concrete filled steel tube truss combination beamss attachment means.
Background technology
In technical field of bridge construction, space concrete filled steel tube truss combination beamss are a kind of novel bridge structures, are completed
Such as dry lake grand bridge of the bridge of such structure type.It is left that this kind of bridge deadweight relatively reduces 50% with across footpath concrete simply supported beam
The right side, it can also reduce substructure quantities in increase bridge span ability simultaneously, therefore before the bridge type has development well
Scape.
Space concrete filled steel tube truss combination beamss construction both at home and abroad at present, typically first using dilatory, segmental hoisting the methods of
Steel pipe truss is set up, then up, Pumping concrete in lower edge steel pipe, after steel pipe inner concrete reaches design requirement, with steel
Tubular truss is the support of cast-in-place floorings template, and a high position sets up floorings template, cast-in-site floorings.Poured into a mould using the method
Floorings, model sheetinstallat, concrete cast are in high-altitude completion in situ, and the duration is longer, and difficulty of construction is larger, floorings construction matter
Measure and be not easy to ensure, personal security and architecture quality have very big hidden danger.
To shorten the duration, ensureing floorings construction quality, floorings can also be poured before steel pipe truss is installed, i.e. bridge
Panel and steel pipe truss are drawn or lifted together and set up, during using such a construction method, structure weight when floorings will increase installation
Amount, for bridge pier it is not high, temporary rest pier place can be set, can use large tonnage crane segmental hoisting carry floorings steel pipe purlin
Frame；It when bridge pier is higher or can not set temporary rest pier, can not be realized using crane segmental hoisting, dilatory erection can only be used, this
When, very big internal force is produced when structure is great cantilever during floorings weight dilatory to structure will be set up, causes this structure
System and construction method can not be realized, can only use and first set up steel pipe truss, the construction method for floorings of constructing again.
For space concrete filled steel tube truss combination beamss design feature, new structural systen and construction method are researched and developed, to opening up
The wide this new structure place scope of application, shorten the duration, ensure work progress personal security and construction quality, there is fine reality
Meaning.
The content of the invention
The utility model provides a kind of reduction difficulty of construction to solve technical problem present in known technology, improves bridge
Panel construction quality and shortening duration, improve the prefabricated bridge space concrete filled steel tube truss combination beamss of workmen's security
Attachment means.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：
A kind of prefabricated bridge space concrete filled steel tube truss combination beamss attachment means, including steel pipe truss, its feature exist
In：Also include the floorings that the polylith independence on steel pipe truss top is longitudinally sequentially laid on along bridge, in every piece of floorings
Lower surface is provided with two detents coordinated one by one with two steel pipes that wind up of steel pipe truss, the top half for the steel pipe that winds up with
Detent forms cambered surface contact；Floorings upper surface is provided with the upper groove for anchoring prestress reinforcing bar, consolidates in upper groove
It is fixed to be provided with the adjustable composite steel plate being used for needed for anchoring prestress reinforcing bar, installed in adjustable composite steel plate provided with steel strand wires
Hole, anchorage is installed on combined steel plate, filled in upper groove with filler closely knit；Winding up, steel pipe bottom correspondence position is welded with
Arc steel conduit, presstressed reinforcing steel pass through out of curved catheter.
The utility model can also use following technical measures：
The adjustable composite steel plate is connected by top steel plate with lower steel plate by bearing pin, and top steel plate can be according to bearing pin
The center of circle rotates upwardly and downwardly, and the lower steel plate between high-strength bolt and nut and fovea superior trench bottom by being fixedly connected, and by high-strength
Shank of bolt support, prestressing force is born, anchorage is installed on the steel plate of top.
The utility model has the advantages and positive effects of：Using combinations of the above girder construction, floorings are prefabricated can be with
Bridge substructure is carried out simultaneously, is installing steel pipe truss, and Pumping concrete reaches design strength in upper and lower string pipe
Afterwards, you can block-by-block installs prefabricated floorings since end of the bridge, and then order tensioned prestressing bar is used to reinforce floorings
With the connection of space truss.This prefabricated bridge structure type is compared with cast-in-place floorings form, it is not necessary to is set up in a high position
Floorings template and cast-in-site floorings, one piece of prefabricated floorings of block need to be only fixedly connected i.e. with steel pipe truss
Can, so as to avoid a large amount of job spaces, the construction period of bridge is greatly shortened and has reduced cost, and has ensured the construction time
Between personal security and improve construction quality.Bridge when quality problems occur in floorings, only need to put tension prestress during one's term of military service
Muscle, the prefabricated bridge more renewed.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is Fig. 1 side view；
Fig. 3 is Fig. 1 top view；
Fig. 4 is the cross-sectional view of prefabricated bridge；
Fig. 5 is Fig. 4 top view；
Fig. 6 is relief arrangement cross-sectional view in upper groove；
Fig. 7 is relief arrangement top view in upper groove.
In figure：1st, steel pipe truss；2nd, wind up steel pipe；3rd, lower edge steel pipe；4th, web member；5th, arc steel conduit；6th, floorings；7、
Detent；8th, upper groove；9th, combined steel plate；10th, upper steel plate；11st, lower steel plate；12nd, bearing pin；13rd, anchorage；14th, bolt；15、
Nut；16th, filler；17th, deformed bar.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Refer to Fig. 1 to Fig. 7, a kind of prefabricated bridge space concrete filled steel tube truss combination beamss attachment means, including steel
Tubular truss 1, for steel pipe truss with reference to existing technology, it includes the abdomen of two steel pipes 2 that wind up, lower edge steel pipe 3 and the upper lower edge steel pipe of connection
Bar 4；Also include the floorings 6 that the polylith independence of steel pipe truss upper end is longitudinally sequentially laid on along bridge；Wind up steel at every
Pipe bottom correspondence position is welded with arc steel conduit 5；Winded up on the lower surface of every piece of floorings provided with two with steel pipe truss
Two detents 7 that steel pipe coordinates one by one, top half and the detent of the steel pipe that winds up form cambered surface and contacted；Floorings upper end
Face is provided with the upper groove 8 for anchoring prestress reinforcing bar 17, be provided with upper groove be used for needed for anchoring prestress reinforcing bar can
Mode combined steel plate 9, the adjustable composite steel plate are connected by top steel plate 10 and the two panels steel plate of lower steel plate 11 by bearing pin 12,
The adjustable composite steel plate is connected by top steel plate with lower steel plate by bearing pin, and top steel plate can be above and below the center of circle according to bearing pin
Rotate, the lower steel plate passes through high-strength bolt bar branch by being fixedly connected between high-strength bolt and nut and fovea superior trench bottom
Support, bear prestressing force.Winded up specifically, deformed bar is located between steel pipe and lower edge steel pipe, and pass through arc steel conduit, worn
After crossing lower steel plate, using tensioner stretch-draw prestressing force to proof stress, presstressed reinforcing steel is anchored with anchorage 13 in stretching end
On top steel plate in the upper groove of floorings upper surface, filled in upper groove with filler 16 closely knit.
The construction method of prefabricated bridge space concrete filled steel tube truss combination beamss, including following construction procedure：
1), when installing prefabricated bridge, combined steel plate is arranged in groove, the lower steel plate of combined steel plate passes through height
Strength bolt is fixed on upper groove concrete base；
2), install when combined steel plate when, first by top steel plate opposing lower portions steel plate open certain angle, and by positioned at
The position of nut adjustment top steel plate between top steel plate and lower steel plate, then by adjusting the nut of bottom by bottom steel
Plate and fovea superior trench bottom fixation；Adjust after the steel plate position of top by the nut check top steel plate on top；
3) penetrate high strength steel strand in the steel strand wires mounting hole, formed between top steel plate and lower steel plate, it is single-ended or
Both-end tensioning is by steel strand anchoring on combined steel plate；
4), encapsulant will be inserted in upper groove to be closed；
5) when, needing to change floorings, first the encapsulant of filling is removed, then progressively unclamps the top of combined steel plate
The nut of steel plate bottom, the top steel plate of combined steel plate is set to be rotated around bearing pin, so as to the stretching force of removal prestress wire；
6), the floorings of damage are sling by lifting appliance, and are placed on the position specified；
7) new floorings, are lifted by hanging device, then repeat the above steps 1 to step 4, you can realize the plate
Installation.
At present, domestic construction equipment and construction technology can ensure the prefabricated precision of floorings, the pass of this structural system
Key is that can prefabricated bridge and steel pipe truss cooperation.The utility model patent in the steel pipe lower weld steel that winds up by leading
Pipe, connects deformed bar and reaches fixation, the fine connection that must enhance floorings between the steel pipe that winds up, prevent bridge floor
Occurs relative shear sliding between plate and the steel pipe that winds up.
Bridge during one's term of military service, if certain block floorings occur quality problems need change when, steel is combined in groove by screwing
The high-strength nut of plate top steel plate can realize presstressed reinforcing steel off-load, after the floorings more renewed, in advance should again by stretch-draw anchor
Power muscle completes the connection of floorings and space truss.Maintenance to bridge can be realized in a short time using the above method, implemented just
Victory can reach economic, time saving, safe effect.
Described above is only to preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, it is every according to the technical essence of the utility model to any simple modification made for any of the above embodiments, equivalent variations with
Modification, is belonged in the range of technical solutions of the utility model.
Claims (2)
1. a kind of prefabricated bridge space concrete filled steel tube truss combination beamss attachment means, including steel pipe truss, it is characterised in that：
Also include the floorings that the polylith independence on steel pipe truss top is longitudinally sequentially laid on along bridge, in the lower end of every piece of floorings
Face is provided with two detents coordinated one by one with two steel pipes that wind up of steel pipe truss, the top half for the steel pipe that winds up and positioning
Groove forms cambered surface contact；Floorings upper surface is provided with the upper groove for anchoring prestress reinforcing bar, fixes and sets in upper groove
Have for the adjustable composite steel plate needed for anchoring prestress reinforcing bar, adjustable composite steel plate is interior to be provided with steel strand wires mounting hole, group
Anchorage is installed on conjunction steel plate, filled in upper groove with filler closely knit；Winding up, steel pipe bottom correspondence position is welded with arc
Steel conduit, presstressed reinforcing steel pass through out of curved catheter.
2. concrete filled steel tube truss combination beamss attachment means in prefabricated bridge space according to claim 1, its feature exist
In：The adjustable composite steel plate is connected by top steel plate with lower steel plate by bearing pin, and top steel plate can be the center of circle according to bearing pin
Rotate upwardly and downwardly, the lower steel plate passes through high-strength bolt by being fixedly connected between high-strength bolt and nut and fovea superior trench bottom
Bar support, prestressing force is born, anchorage is installed on the steel plate of top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721152638.2U CN207210932U (en) | 2017-09-08 | 2017-09-08 | Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721152638.2U CN207210932U (en) | 2017-09-08 | 2017-09-08 | Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207210932U true CN207210932U (en) | 2018-04-10 |
Family
ID=61823686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721152638.2U Expired - Fee Related CN207210932U (en) | 2017-09-08 | 2017-09-08 | Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means |
Country Status (1)
| Country | Link |
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| CN (1) | CN207210932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574746A (en) * | 2017-09-08 | 2018-01-12 | 天津城建大学 | Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means and construction method |
-
2017
- 2017-09-08 CN CN201721152638.2U patent/CN207210932U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107574746A (en) * | 2017-09-08 | 2018-01-12 | 天津城建大学 | Prefabricated bridge space concrete filled steel tube truss combination beamss attachment means and construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 Termination date: 20180908 |
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| CF01 | Termination of patent right due to non-payment of annual fee |