CN206941372U - Concrete-filled steel tube with dumbbell sections assembled pier and the attachment structure with cushion cap - Google Patents
Concrete-filled steel tube with dumbbell sections assembled pier and the attachment structure with cushion cap Download PDFInfo
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- CN206941372U CN206941372U CN201720751852.3U CN201720751852U CN206941372U CN 206941372 U CN206941372 U CN 206941372U CN 201720751852 U CN201720751852 U CN 201720751852U CN 206941372 U CN206941372 U CN 206941372U
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- steel tube
- concrete
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- pier
- bridge
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Abstract
A kind of attachment structure the utility model discloses concrete-filled steel tube with dumbbell sections assembled pier and with cushion cap, concrete-filled steel tube with dumbbell sections assembled pier, including the symmetrical dumbbell shape steel tube of the centre of form line along two round steel pipes being made up of two round steel pipes and the double-layer plate being welded between two round steel pipes, fillet weld seam is used between double-layer plate and round steel pipe.The bottom of dumbbell shape steel tube is welded with end plate, and the outline of end plate is more than the outline of the cross section of dumbbell shape steel tube, is respectively provided with 1 anchor hole along bridge pier direction across bridge both sides on end plate, concrete is filled with dumbbell shape steel tube.Bridge pier is connected with cushion cap using grouting corrugated sleeve flush type, and the dumbbell shape steel tube in the utility model and reinforced concrete pile cap are prefabricated components, can meet prefabrication, assembled in situ.The utility model has the characteristics of axial direction and anti-bending bearing capacity are high, and ductility is good, and lateral stiffness is big, and construction is convenient, and field operation amount and wet trade are few, meet the needs of rapid construction, and the especially high pier structure of bridge pier that can be applied to great science of bridge building uses.
Description
Technical field
Science of bridge building field is the utility model is related to, more particularly, to a kind of concrete-filled steel tube with dumbbell sections assembled pier.
Background technology
With the development of China's communication, the construction of the input such as substantial amounts of high-speed railway, highway, bridge spanning the sea and use.
In highly seismic region of providing fortification against earthquakes, to ensure the security of bridge structure, bridge pier is as important supporting member, to its anti-seismic performance
Have high requirements.Traditional bridge pier uses reinforced concrete bridge pier more, and its bearing capacity and ductility are poor, easily occurs under severe earthquake action
Destroy.And for the important lifeline engineering such as bridge spanning the sea, repaired when bridge pier destroys extremely difficult.
In recent years, due to its good anti-seismic performance and easily construction is applied to bridge structure to concrete pier of steel tube
In.It is more using circular, concrete-filled rectangular steel tube bridge pier in existing Practical Project.Wherein steel pipe pair in circular steel tube concrete bridge pier
The effect of restraint of concrete is best, but its direction across bridge and along bridge it is identical to rigidity, when meeting direction across bridge rigidity requirement along bridge to
Excessively waste.Concrete-filled rectangular steel tube bridge pier can meet direction across bridge from along bridge to rigidity it is different the needs of, but flakiness ratio is bigger, steel
Pipe is poorer to the effect of restraint of concrete, and the ductility of bridge pier is poorer.
Meanwhile in bridge spanning the sea, Bridges in Mountainous Areas, reservoir bridge, due to the factors such as with a varied topography or navigation demand, high bridge
The application of pier is more and more extensive.Under the effect such as direction across bridge wind load, earthquake load, high pier bottom moment is higher, it is necessary to anti-
Curved highly efficient section.It is therefore proposed that the Novel dumbbell type pier section being made up of both ends round steel pipe and middle double-layer plate,
To be effectively increased high pier direction across bridge anti-side rigidity and anti-bending bearing capacity, improve road-ability and resist the ability of natural calamity.
At present, concrete pier of steel tube be typically connected with cushion cap connected mode using bearing plate and it is embed-type connection two kinds of structures
Make method.Wherein bearing plate connection refers to be connected with cushion cap by crab-bolt and anchor bar in steel pipe bottom welded end plate, end plate,
Work progress is relatively complicated.Embed-type connection refers to steel pipe bottom welded end plate, steel pipe bottom and anchoring in end plate embedment cushion cap,
It is in construction to use cast-type cushion cap more.To shorten the bridge construction duration, open to traffic, is badly in need of proposing that one kind is achievable prefabricated as early as possible
Assembled bridge pier-cushion cap connection method, meets the needs of bridge rapid construction.
Therefore, a kind of high pier form with larger direction across bridge anti-side rigidity and intensity is designed, and research one kind can
Realize the bridge pier of rapid construction and cushion cap connection method be urgent need to resolve technical problem.
Utility model content
A kind of attachment structure the utility model proposes concrete-filled steel tube with dumbbell sections assembled pier and with cushion cap.The dumbbell
Shape steel tube concrete assembled pier is its object is to overcome existing for existing bridge pier from great, the shortcomings that poor seismic behavior, fully
In view of bridge pier direction across bridge with along bridge to stiffness difference it is big the characteristics of, the bridge pier high capacity, ductility is good, horizontal anti-side rigidity
Greatly, suitable for high pier.The concrete-filled steel tube with dumbbell sections bridge pier is connected rapid constructing method with cushion cap as grouting wavy metal
Sleeve flush type connects, and can be applied to the connection anchoring of precast pier, cushion cap, the connecting structure anti-seismic performance is good, and construction is just
Victory, field operation amount is small, is advantageous to shorten the duration, has preferable economic benefit and security performance.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of concrete-filled steel tube with dumbbell sections assembled pier, bag
Dumbbell shape steel tube is included, there is end plate the bottom of the dumbbell shape steel tube using fillet weld seam, and the outline of the end plate is more than institute
State the outline of the cross section of dumbbell shape steel tube, 1 anchor hole is respectively provided with along bridge pier direction across bridge both sides on the end plate, it is described mute
Concrete is filled with bell shape steel tube.
Further, the dumbbell shape steel tube is by two round steel pipes and the bilayer being welded between described two round steel pipes
Steel plate is formed, and centre of form line of the double-layer plate along described two round steel pipes is symmetrical.
Welding between the double-layer plate and described two round steel pipes uses fillet weld seam.
The attachment structure of above-mentioned steel-pipe concrete assembled pier and cushion cap, wherein, cushion cap is reinforced concrete pile cap, described
The central position of reinforced concrete pile cap is provided with the groove for embedding concrete-filled steel tube with dumbbell sections assembled pier, the depth of the groove
Spend and be made up of for bridge pier buried depth, the side wall of the groove the wavy metal sleeve with cushion cap build-in, the dumbbell shape steel tube is mixed
Native assembled pier is coagulated to fix temporarily by pre-embedded bolt and the cushion cap；The level of the concrete-filled steel tube with dumbbell sections assembled pier
The outline of projection is less than the Internal periphery of the floor projection of the wavy metal sleeve, the concrete-filled steel tube with dumbbell sections composite bridge
Fibre reinforced cement is filled between pier and the metal bellows.
Compared with prior art, the beneficial effects of the utility model are：
1. concrete-filled steel tube with dumbbell sections assembled pier direction across bridge bending rigidity is big, suitable for high pier.It is anti-to ensureing along bridge
Area of section is reduced on the basis of curved rigidity, meets science of bridge building direction across bridge and suitable bridge to the big need of bending rigidity difference
Ask, it also avoid concrete-filled rectangular steel tube bridge pier it is generous bigger when, the drawbacks of steel tube confinement effect difference.
2. concrete-filled steel tube with dumbbell sections assembled pier while vertical bearing capacity is ensured, laterally there is higher bending resistance to hold
Carry power.Compared to other cross sectional shapes, the round steel pipe in concrete-filled steel tube with dumbbell sections bridge pier is more preferable to the effect of restraint of concrete, carries
The high compression strength and ductility of concrete material, can make full use of the strength of materials.
3. applied to across river, it is over strait, when in Reservoir Bridge, bridge pier direction across bridge is circular cross-section, be advantageous to current by,
Reduce influence of the flowing pressure to structure.
4. the utility model concrete pier of steel tube and cushion cap attachment structure and method and existing bridge pier and cushion cap connection side
Method is compared, easy construction, and work on the spot amount and wet trade are few, and the connection of precast pier, prefabricated cushion cap, and connecting node can be achieved
With preferable anti-seismic performance.Without formwork in work progress, be advantageous to shorten the duration, there is good economic benefit.
Brief description of the drawings
Fig. 1-1 is that the utility model bridge pier is connected profile construction schematic diagram with cushion cap；
Fig. 1-2 is the top view that bridge pier shown in Fig. 1-1 is connected with cushion cap；
Fig. 2-1 is the top view of cushion cap in the utility model；
Fig. 2-2 is the sectional view of cushion cap in the utility model；
Fig. 3 is the top view of the utility model end plates；
Fig. 4-1 is the top view of dumbbell shape steel tube in the utility model；
Fig. 4-2 is the front view of dumbbell shape steel tube in the utility model；
Fig. 5-1 is that bridge pier steel construction part is temporarily fixed at the top view on cushion cap in the utility model；
Fig. 5-2 is that bridge pier steel construction part is temporarily fixed at the front view on cushion cap in the utility model.
In figure, 1- dumbbell shape steel tubes, 2- concrete filleds, 3- end plates, 4- wavy metal sleeves, 5- cushion caps, 6- round steel pipes,
7- steel plates, 8- anchor holes, 9- anchor bolts parts, 10- fibre reinforced cements.
Embodiment
Technical solutions of the utility model are described in further detail with specific embodiment below in conjunction with the accompanying drawings, it is described
Only the utility model is explained for specific embodiment, not limiting the utility model.
A kind of concrete-filled steel tube with dumbbell sections assembled pier proposed in the utility model, including dumbbell shape steel tube 1, as Fig. 4-
Shown in 1 and Fig. 4-2, the dumbbell shape steel tube 1 is by two round steel pipes 6 and the bilayer being welded between described two round steel pipes 6
Steel plate 7 is formed, and centre of form line of the double-layer plate 7 along described two round steel pipes 6 is symmetrical, the double-layer plate 7 and institute
The welding stated between two round steel pipes 6 uses fillet weld seam.There is end the bottom of the dumbbell shape steel tube 1 using fillet weld seam
Plate 3, the outline of the end plate 3 are more than the outline of the cross section of the dumbbell shape steel tube 1, horizontal along bridge pier on the end plate 3
Bridge is respectively provided with 1 anchor hole 8 to both sides, as shown in figure 3, concrete 2 is filled with the dumbbell shape steel tube 1, in the dumbbell
Casting concrete inside shape steel tube, suppress the inside flexing of steel pipe.
The attachment structure of the utility model steel-pipe concrete assembled pier and cushion cap, as shown in Fig. 2-1 and Fig. 1-2, cushion cap
It is reinforced concrete pile cap 5, the central position of the reinforced concrete pile cap 5, which is provided with, is used for embedding concrete-filled steel tube with dumbbell sections
The groove of assembled pier, the depth of the groove are bridge pier buried depth, the side wall of the groove by with reinforced concrete pile cap build-in
Wavy metal sleeve 4 is formed, and the concrete-filled steel tube with dumbbell sections assembled pier is held by pre-embedded bolt 9 and the armored concrete
Platform 5 is fixed temporarily；The outline of the floor projection of the concrete-filled steel tube with dumbbell sections assembled pier 1 is less than the wavy metal set
The Internal periphery of the floor projection of cylinder 4, is filled between the concrete-filled steel tube with dumbbell sections assembled pier and the wavy metal sleeve 4
There is fibre reinforced cement 10.
The construction method of the attachment structure of the utility model steel-pipe concrete assembled pier and cushion cap, bridge pier use with cushion cap
The corrugated sleeve flush type that is in the milk connects, and the dumbbell shape steel tube 1 in the utility model and reinforced concrete pile cap 5 are prefabricated components,
Prefabrication can be met, assembled in situ, realize rapid construction.Specific construction procedure is as follows：
Step 1: the prefabrication of dumbbell shape steel tube 1, makes end plate 3, along bridge pier cross-bridges on end plate 3 according to design size
1 anchor hole 8 is respectively provided with to both sides, as shown in Figure 3；According to design size processing double-layer steel plate 7 and two round steel pipes 6, and
Double-layer plate 7 and two round steel pipes 6 are welded using fillet weld seam, fillet weld seam upper head plate 3 is used in bottom, so as to
The steel construction part of concrete-filled steel tube with dumbbell sections assembled pier is formed, as shown in Fig. 4-1 and Fig. 4-2.Double-layer plate 7 and circular steel
Ordinary low-carbon steel or weathering steel can be selected in the material of pipe 6, can also use yield strength in more than 550MP high-strength steel.If using
In across river, across in reservoir, bridge spanning the sea, can also use stainless steel, improve its resistance to corrosion.To avoid middle double-layer plate 7
Angle welding explosion between the web and round steel pipe 6 of composition, concrete are poured using conventional, are not used and be pumped by.
Step 2: the prefabrication of reinforced concrete pile cap 5：According to the design size assembling reinforcement of reinforced concrete pile cap 5
Cage, before reinforced concrete pile cap 5 pours, wavy metal sleeve 4 is set in bridge pier embedding opening position, embedding sky is reserved for bridge pier
Between, the sectional dimension of the wavy metal sleeve 4 is more than the size of end plate 3 of bridge pier bottom, the height of the wavy metal sleeve 4
For bridge pier buried depth；And in setting cast-in fixing bolt 9 with anchor hole 8 is alignd on end plate 3 opening position；Casting concrete, obtain
Prefabricated reinforced concrete cushion cap 5, as shown in Fig. 2-1 and Fig. 2-2.
Step 3: at the construction field (site), according to the reinforced concrete pile cap 5 that design attitude installation steps two are prefabricated, by step
The steel construction part of concrete-filled steel tube with dumbbell sections assembled pier made from one, armored concrete is erected at down according to end plate 3 and is held
In wavy metal sleeve 4 in platform 5, during on-site hoisting, the cast-in fixing bolt 9 on cushion cap aligns with the anchor hole 8 on end plate 3, leads to
Cross anchor bolts part to be connected the steel construction part of concrete-filled steel tube with dumbbell sections assembled pier with reinforced concrete pile cap 5, crab-bolt 9
The interim fixation of steel pipe in work progress is only played, as shown in Fig. 5-1 and Fig. 5-2, even if dumbbell shape steel tube 1 is in bridge pier specific bit
It is interim fixed to put place.After the installation of dumbbell shape steel tube 1, to the inner side of round steel pipe 6 of dumbbell shape steel tube 1 and double-layer plate 7
Inner side casting concrete, so as to constitute concrete-filled steel tube with dumbbell sections assembled pier, the concrete poured can be selected from general
Any one of logical concrete, high-strength concrete, regeneration concrete and rubber concrete, the wavy metal sleeve 4 with it is mute
Space between bell shape steel tube concrete assembled pier is filled using fibre reinforced cement 10, as shown in Fig. 1-1 and Fig. 1-2.
The utility model steel-pipe concrete assembled pier has axial direction and anti-bending bearing capacity height, and ductility is good, and lateral stiffness is big
The characteristics of, construction is convenient, and field operation amount and wet trade are few, meet the needs of rapid construction, can be applied to great science of bridge building
Bridge pier especially high pier structure use
Although the utility model is described above in conjunction with accompanying drawing, the utility model is not limited to above-mentioned
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, the ordinary skill of this area
Personnel are under enlightenment of the present utility model, in the case where not departing from the utility model aims, can also make many variations, this
Belong within protection of the present utility model.
Claims (4)
- A kind of 1. concrete-filled steel tube with dumbbell sections assembled pier, it is characterised in that including dumbbell shape steel tube (1), the dumbbell shaped steel There is end plate (3) bottom of pipe (1) using fillet weld seam, and the outline of the end plate (3) is more than the dumbbell shape steel tube (1) The outline of cross section, 1 anchor hole (8), the dumbbell shape steel tube are respectively provided with along bridge pier direction across bridge both sides on the end plate (3) (1) concrete (2) is filled with.
- 2. concrete-filled steel tube with dumbbell sections assembled pier according to claim 1, it is characterised in that the dumbbell shape steel tube (1) It is made up of two round steel pipes (6) and the double-layer plate (7) being welded between described two round steel pipes (6), the double-layer plate (7) it is symmetrical along the centre of form line of described two round steel pipes (6).
- 3. concrete-filled steel tube with dumbbell sections assembled pier according to claim 2, it is characterised in that the double-layer plate (7) with Welding between described two round steel pipes (6) uses fillet weld seam.
- 4. the attachment structure of a kind of steel-pipe concrete assembled pier and cushion cap, it is characterised in that steel-pipe concrete assembled pier is Concrete-filled steel tube with dumbbell sections assembled pier as described in any in claims 1 to 3, cushion cap are reinforced concrete pile cap (5), institute The central position for stating reinforced concrete pile cap (5) is provided with the groove for being used for embedding concrete-filled steel tube with dumbbell sections assembled pier, described The depth of groove is bridge pier buried depth, and the side wall of the groove is by the wavy metal sleeve (4) with reinforced concrete pile cap (5) build-in Form, the concrete-filled steel tube with dumbbell sections assembled pier is temporarily solid by pre-embedded bolt (9) and the reinforced concrete pile cap (5) It is fixed；The outline of the floor projection of the concrete-filled steel tube with dumbbell sections assembled pier is less than the water of the wavy metal sleeve (4) The Internal periphery of flat projection, filled with fibre between the concrete-filled steel tube with dumbbell sections assembled pier and the wavy metal sleeve (4) Dimension enhancing cement (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751852.3U CN206941372U (en) | 2017-06-26 | 2017-06-26 | Concrete-filled steel tube with dumbbell sections assembled pier and the attachment structure with cushion cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751852.3U CN206941372U (en) | 2017-06-26 | 2017-06-26 | Concrete-filled steel tube with dumbbell sections assembled pier and the attachment structure with cushion cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206941372U true CN206941372U (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720751852.3U Withdrawn - After Issue CN206941372U (en) | 2017-06-26 | 2017-06-26 | Concrete-filled steel tube with dumbbell sections assembled pier and the attachment structure with cushion cap |
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| Country | Link |
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| CN (1) | CN206941372U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190635A (en) * | 2017-06-26 | 2017-09-22 | 天津大学 | Concrete-filled steel tube with dumbbell sections assembled pier and the connection structure and method with cushion cap |
| CN110387821A (en) * | 2018-04-23 | 2019-10-29 | 东宏建设股份有限公司 | Bridge beam slab lifts spacer bar accurate placement technology |
-
2017
- 2017-06-26 CN CN201720751852.3U patent/CN206941372U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107190635A (en) * | 2017-06-26 | 2017-09-22 | 天津大学 | Concrete-filled steel tube with dumbbell sections assembled pier and the connection structure and method with cushion cap |
| CN107190635B (en) * | 2017-06-26 | 2022-10-04 | 天津大学 | Dumbbell type steel pipe concrete combined bridge pier and connecting structure and method of dumbbell type steel pipe concrete combined bridge pier and bearing platform |
| CN110387821A (en) * | 2018-04-23 | 2019-10-29 | 东宏建设股份有限公司 | Bridge beam slab lifts spacer bar accurate placement technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Tianjin University |
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| CP02 | Change in the address of a patent holder | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20221004 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180130 Effective date of abandoning: 20221004 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |