CN205529842U - Steel pipe concrete arch foot - Google Patents
Steel pipe concrete arch foot Download PDFInfo
- Publication number
- CN205529842U CN205529842U CN201620305836.7U CN201620305836U CN205529842U CN 205529842 U CN205529842 U CN 205529842U CN 201620305836 U CN201620305836 U CN 201620305836U CN 205529842 U CN205529842 U CN 205529842U
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- steel
- concrete
- steel tube
- tube arch
- steel pipe
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Abstract
The utility model discloses a steel pipe concrete arch foot, including concrete girder and four steel pipe arch ribs, looping through the steel sheet between the adjacent steel pipe arch rib and connecting, steel sheet and steel pipe arch rib combination constitution steel case, four steel pipe arch ribs are in four apex angles of steel case respectively, in steel case part stretched into the concrete girder, the pouring of steel incasement had the concrete. The steel pipe concrete arch foot of this structure, can not only promote the bridge floor visual effect, reduce the current degree that produces the obstacle to the pedestrian, compressive property that in addition can the make full use of concrete, reduce the construction degree of difficulty, examine and repair convenient, promote the life who encircles the foot structure.
Description
Technical field
This utility model relates to a kind of concrete filled steel tube arch springing.
Background technology
In traditional concrete filled steel tube arch springing, use and be provided above concrete arch at concrete girder (being often referred to bridge floor)
Seat, during the most just steel pipe is inserted directly into concrete skewback concrete, utilizes the frictional force between steel pipe and concrete,
Axle power powerful for arch rib is passed to arch springing concrete.This version has a disadvantage in that 1) concrete master
Beam is provided above concrete skewback, not only affects the visual effect of bridge floor, and walk also produces certain barrier
Hinder；2) it is that tensile strength is low, comprcssive strength is high due to concrete property, during transmission arch rib axle power,
" pressure " of arch rib being changed into " pulling force " of concrete, the concrete contacted with steel tube arch rib assume responsibility for
Bigger tension, does not utilize the advantage that the comprcssive strength of concrete is big, make use of concrete tension on the contrary
The shortcoming of intensity difference, this form arch springing causes arch springing concrete stress complicated, due to this stress power transmission mould
Formula causes traditional design to be provided with more oblique reinforcing bar to add the resistance to tension of reinforced concrete, due to coagulation
Soil arch springing is natively provided with more regular reinforcement, is further added by oblique reinforcing bar, causes arch springing concreting
Difficulty is big, and construction quality is relatively difficult to ensure card, and by investigation, this type of arch bridge of 80%, arch springing concrete all occurs
Cracking disease in various degree, owing to arch springing is the position that arch bridge stress is concentrated most, after disease occurs, maintenance
Relatively costly, maintenance construction difficulty is relatively big, and this also result in not very willing recommendation of construction unit and uses steel pipe to mix
The reason of solidifying soil arch bridge.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of concrete filled steel tube arch springing, can not only lift bridge
The visual effect in face, reduction produce the degree of obstacle to walk, and can make full use of the anti-of concrete
Press performance, reduction difficulty of construction, maintenance is convenient, promote the service life of arch springing structure.
This utility model solves the problems referred to above by techniques below means: a kind of concrete filled steel tube arch springing, including
Concrete girder and four steel tube arch ribs, pass sequentially through steel plate and connect between described adjacent steel tube arch rib, steel plate and steel
The combination of pipeline overhead lifting rib constitutes steel case, and four steel tube arch ribs are in four drift angles of steel case, described steel case part respectively
Stretch in concrete girder, in steel case, be cast with concrete.
Further, described steel tank wall is provided with the PBL component being made up of reinforcing bar.
Further, described steel tank wall is provided with WELDING STUDS.
Further, described steel pipe is fixedly installed bolt, described steel plate is provided with connecting hole, described bolt
Being attached locking by nut after connecting hole, the head end of described bolt is provided with cylinder, described cylinder
The hinged ratchet that is provided with on the face of cylinder of body, is provided with the screwed hole being interconnected and cylindrical hole in described nut,
On the hole wall of described cylindrical hole, circumference is evenly arranged with multiple hook tooth mated with ratchet.
Further, described ratchet is made up of memorial alloy.
The beneficial effects of the utility model: concrete filled steel tube arch springing of the present utility model, including concrete girder and four
Root steel tube arch rib, passes sequentially through steel plate and connects between described adjacent steel tube arch rib, steel plate and steel tube arch rib combination
Constituting steel case, four steel tube arch ribs are in four drift angles of steel case respectively, and described steel case part stretches into concrete girder
In, it is cast with concrete in steel case.The concrete filled steel tube arch springing of this structure, can not only promote the vision of bridge floor
Effect, reduce to walk produce obstacle degree, and can make full use of concrete compressive property,
Reduce difficulty of construction, maintenance is convenient, promote the service life of arch springing structure.
Accompanying drawing explanation
With embodiment, this utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic cross-section of steel case；
Fig. 3 is that bowing of coordinating with hook tooth of ratchet sees schematic diagram.
Detailed description of the invention
Below with reference to accompanying drawing, this utility model is described in detail, as Figure 1-3: a kind of steel pipe mixes
Solidifying soil arch springing, including concrete girder 1 and four steel tube arch ribs 2, passes sequentially through steel between described adjacent steel tube arch rib
Plate 3 connects, and steel plate and steel tube arch rib combination constitute steel case, and four steel tube arch ribs are in four of steel case respectively
Drift angle, described steel case part stretches in concrete girder, generally stretch into that the part in concrete girder is steel case height 1/2
To 2/3, in steel case, it is cast with concrete.The concrete filled steel tube arch springing of this structure, on the one hand, need not at concrete
Girder is provided above concrete skewback, can not only promote the visual effect of bridge floor, and can reduce and produce walk
The degree of raw obstacle；On the other hand, the axle power of steel tube arch rib is passed to concrete master by steel case is circumferentially uniform
Concrete in beam steel case, " pressure " of arch rib steel pipe is changed into " pressure " of concrete, fully
Play the advantage that concrete crushing strength is high, optimized the stress of structure, reached to reduce construction difficulty simultaneously
Degree, the advantage overhauled conveniently, promote the service life of arch springing structure.
As the further improvement of technique scheme, described steel tank wall is provided with the PBL being made up of reinforcing bar
Component 4, PBL component is reinforcement component, described steel tank wall is additionally provided with WELDING STUDS 5, PBL component
All enhance the intensity of steel case and concrete binding with WELDING STUDS, further increase the steadiness of structure.
As the further improvement of technique scheme, described steel pipe is fixedly installed bolt 6, described steel plate
On be provided with connecting hole, described bolt is attached locking, described bolt through after connecting hole by nut 7
Head end be provided with cylinder 8, the hinged ratchet 9 that is provided with on the described cylindrical face of cylinder, in described nut
Being provided with the screwed hole and cylindrical hole being interconnected, on the hole wall of described cylindrical hole, circumference is evenly arranged with multiple
The hook tooth 10 mated with ratchet.During fastening nut, nut is screwed into by screw thread nose end, screwed hole and bolt
Joining, ratchet coordinates with hook tooth, constitutes one-directional rotation structure, makes nut can only rotate towards the direction tightened,
Reverse then can not rotate, it is to avoid nut loosening, it is ensured that the reliability of steel plate and fastener for connection, to guarantee
Give full play to the advantage that concrete crushing strength is high in real time, optimize the stress of structure, the use longevity of lift structure
Life.
As the further improvement of technique scheme, described ratchet is made up of memorial alloy.Ratchet recovers shape
Just in the ratchet shape mated with hook tooth after shape memory, when not recovering shape memory, ratchet and hook tooth
Not mating, when overhauling steel plate etc., state when making ratchet be in not to recover shape memory is (generally
Take cooling means), conveniently rotate backward nut and nut is exited.
Finally illustrating, above example is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
This utility model has been described in detail by pipe with reference to preferred embodiment, and those of ordinary skill in the art should manage
Solve, the technical solution of the utility model can be modified or equivalent, without deviating from this utility model
The objective of technical scheme and scope, it all should be contained in the middle of right of the present utility model.
Claims (5)
1. a concrete filled steel tube arch springing, including concrete girder (1) and four steel tube arch ribs (2), its feature exists
In: passing sequentially through steel plate (3) between described adjacent steel tube arch rib and connect, steel plate and steel tube arch rib combination are constituted
Steel case, four steel tube arch ribs are in four drift angles of steel case respectively, and described steel case part stretches in concrete girder,
It is cast with concrete in steel case.
Concrete filled steel tube arch springing the most according to claim 1, it is characterised in that: set on described steel tank wall
It is equipped with the PBL component (4) being made up of reinforcing bar.
Concrete filled steel tube arch springing the most according to claim 2, it is characterised in that: set on described steel tank wall
It is equipped with WELDING STUDS (5).
4. according to the concrete filled steel tube arch springing described in claim 1-3 any one, it is characterised in that: described
It is fixedly installed bolt (6) on steel pipe, described steel plate is provided with connecting hole, after described bolt passes connecting hole
Being attached locking by nut (7), the head end of described bolt is provided with cylinder (8), described cylinder
The face of cylinder on hinged be provided with ratchet (9), be provided with the screwed hole being interconnected and cylindrical hole in described nut,
On the hole wall of described cylindrical hole, circumference is evenly arranged with multiple hook tooth (10) mated with ratchet.
Concrete filled steel tube arch springing the most according to claim 4, it is characterised in that: described ratchet is by remembering
Alloy is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620305836.7U CN205529842U (en) | 2016-04-13 | 2016-04-13 | Steel pipe concrete arch foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620305836.7U CN205529842U (en) | 2016-04-13 | 2016-04-13 | Steel pipe concrete arch foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205529842U true CN205529842U (en) | 2016-08-31 |
Family
ID=56791791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620305836.7U Expired - Fee Related CN205529842U (en) | 2016-04-13 | 2016-04-13 | Steel pipe concrete arch foot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205529842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622080A (en) * | 2020-05-04 | 2020-09-04 | 中交第四公路工程局有限公司 | Active butt joint method for arch foot and arch rib of steel pipe concrete arch bridge |
| CN111945549A (en) * | 2020-08-26 | 2020-11-17 | 李�浩 | Arch bridge arch foot structure |
-
2016
- 2016-04-13 CN CN201620305836.7U patent/CN205529842U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622080A (en) * | 2020-05-04 | 2020-09-04 | 中交第四公路工程局有限公司 | Active butt joint method for arch foot and arch rib of steel pipe concrete arch bridge |
| CN111945549A (en) * | 2020-08-26 | 2020-11-17 | 李�浩 | Arch bridge arch foot structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |