CN207130606U - Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure - Google Patents
Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure Download PDFInfo
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- CN207130606U CN207130606U CN201720755518.5U CN201720755518U CN207130606U CN 207130606 U CN207130606 U CN 207130606U CN 201720755518 U CN201720755518 U CN 201720755518U CN 207130606 U CN207130606 U CN 207130606U
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Abstract
The utility model discloses a kind of flexing to suppress round end type concrete pier of steel tube, including the nose circle shape steel pipe being welded to form by semicircle steel, the two blocks of plain plates of two pieces of identical cold roll formings using butt weld；Its bottom is welded with end plate, and end plate respectively stays 1 anchor hole along direction across bridge both ends；Concrete is filled with nose circle shape steel pipe, its underpart sets steel hoop, and Teflon coatings are added between steel hoop and steel pipe, can avoid cuff by vertical axle power.Rubber spacer is provided between steel hoop and cushion cap upper surface, prevents steel hoop due to extruding too early flexing.Bridge pier is connected with cushion cap can meet prefabrication, assembled in situ, rapid construction using grouting wavy metal sleeve flush type connection method, bridge pier with cushion cap.The utility model anti-seismic performance is good, lateral stiffness is big, and steel hoop can effectively suppress bottom steel pipe drum song, improve bridge pier ductility, and it is convenient to construct, and work on the spot amount and wet trade are few, easily repair, and can be applied to the bridge pier structure use of great science of bridge building.
Description
Technical field
Science of bridge building field is the utility model is related to, more particularly, to a kind of nose circle shape concrete pier of steel tube.
Background technology
With the development of China's communication, high-speed railway, highway, bridge spanning the sea etc. emerge in multitude.To ensure bridge knot
The security of structure, bridge pier need to have preferable anti-seismic performance as important supporting member.Traditional bridge pier uses reinforced concrete more
Native bridge pier, its bearing capacity and ductility are poor, are easily destroyed under severe earthquake action, repair 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.And it is due to bridge direction across bridge rigidity and big to stiffness difference along bridge, in municipal science of bridge building, often by Pier Design into nose circle
Tee section is to improve the direction across bridge rigidity of bridge pier.Therefore nose circle shape concrete pier of steel tube due to its lateral stiffness it is big, shock resistance
Can be good, there is good application prospect in science of bridge building.
A large amount of scholar's research show both at home and abroad, and for concrete pier of steel tube in geological process, pier bottom shearing and moment of flexure are larger,
It is that the local drum of pier bottom steel pipe appearance is bent that it, which destroys mode, rouses bent scope afterwards and gradually expands, circumferentially develops, finally due to concrete
Crushing, steel pipe tear destroy.
At present, concrete pier of steel tube is typically connected with cushion cap connected mode using bearing plate and flush type connects 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.Flush 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, it is a kind of achievable prefabricated to need proposition badly as early as possible
Assembled bridge pier-cushion cap connection method, meets the needs of bridge rapid construction.
It can be seen that designing a kind of flexing suppresses round end type concrete pier of steel tube, and study a kind of achievable rapid construction
The bridge pier and cushion cap connection method are technical problems urgently to be resolved hurrily.
Utility model content
Attachment structure the utility model proposes a kind of flexing suppression round end type concrete pier of steel tube and with cushion cap.It is described
Flexing suppresses round end type concrete pier of steel tube, and its object is to overcome reinforced concrete bridge pier low bearing capacity, ductility are poor to lack
Point, the good advantage of concrete filled steel tube anti-seismic performance is made full use of, meet bridge pier direction across bridge and suitable bridge to bending rigidity difference
Big demand, and steel hoop is added to suppress the flexing of bridge pier bottom steel pipe by bottom, improve nose circle shape concrete pier of steel tube
Ductility, avoid the destruction of bridge pier structure under severe earthquake action.The bridge pier is connected rapid constructing method with cushion cap as grouting metal wave
Line sleeve flush type connect, its object is to propose it is a kind of can be applied to precast pier, prefabricated cushion cap connection anchoring construction party
Method, meets the needs of bridge rapid construction.
In order to solve the above-mentioned technical problem, the utility model proposes a kind of flexing suppress round end type steel pipe encased concrete bridge
Pier, including nose circle shape steel pipe, the nose circle shape steel pipe are used by semicircle steel, the two blocks of plain plates of two pieces of identical cold roll formings
Butt weld is welded to form；The bottom of the nose circle shape steel pipe is welded with end plate, between the end plate and the nose circle shape steel pipe
Using fillet weld seam；The end plate respectively stays 1 anchor hole along direction across bridge both ends, and coagulation is filled with the inside of the nose circle shape steel pipe
Soil.
The bottom of the nose circle shape steel pipe is sequentially provided with Teflon coatings and steel hoop, the bottom of the steel hoop from inside to outside
Portion is provided with rubber spacer.
The steel hoop is formed by two pieces of clip obvolvents, is fastened between two pieces of clips with high-strength bolt.
The utility model flexing suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap, and cushion cap is reinforced concrete
Native cushion cap, the central position of the reinforced concrete pile cap, which is provided with, is used for embedding flexing suppression round end type concrete pier of steel tube
Groove, the depth of the groove is bridge pier buried depth, and the side wall of the groove is by the wavy metal with reinforced concrete pile cap build-in
Sleeve is formed, and it is interim by pre-embedded bolt and the reinforced concrete pile cap that the flexing suppresses round end type concrete pier of steel tube
It is fixed；The Internal periphery of the floor projection of the wavy metal sleeve suppresses the water of round end type concrete pier of steel tube with the flexing
The outline of flat projection is similitude, and the outline that the flexing suppresses the floor projection of round end type concrete pier of steel tube is less than
The Internal periphery of the floor projection of the wavy metal sleeve, the flexing suppress round end type concrete pier of steel tube and the metal
Fibre reinforced cement is filled between corrugated sleeve.
The rubber spacer is between the bottom surface of the steel hoop and the upper plane of the fibre reinforced cement.
Compared with prior art, the beneficial effects of the utility model are：
1. making full use of the performance of steel and concrete material, nose circle shape steel pipe plays effect of contraction, Ke Yiti to concrete
High concrete compression strength and ductility.And concrete material can suppress steel pipe internally flexing.
2. under geological process, easily there is outside part and rouses bent, concrete cracking in nose circle shape concrete filled steel tube bottom steel pipe,
The bent place of drum causes bridge pier to destroy because fatigue easily the fracture of steel pipe occurs.The utility model increase bottom steel hoop can effectively press down
Outwards locally drum is bent for steel pipe processed, improves bridge pier ductility, prevents bridge collapse caused by bridge pier destruction.
3. difficulty is repaired after existing bridge pier form shake, if the utility model bridge pier bottom steel hoop under severe earthquake action occurs
Gross distortion, the steel hoop that steel hoop more renews can be directly unloaded, it is more convenient to make to repair after shake.
The rapid constructing method that the utility model bridge pier is connected with cushion cap, compared with existing pier construction method, construction
Simplicity, work on the spot amount and wet trade are few, the connection of precast pier, cushion cap can be achieved, and connecting node has preferable antidetonation
Performance.Without formwork in work progress, be advantageous to shorten the duration, there is good economic benefit.
Brief description of the drawings
Fig. 1 is that the utility model flexing suppresses round end type concrete pier of steel tube and cushion cap top view；
Fig. 2 is nose circle shape steel pipe and end plate schematic diagram in the utility model；
Fig. 3 is prefabricated cushion cap schematic diagram in the utility model；
Fig. 4 is nose circle shape steel pipe and cushion cap attachment structure schematic diagram in the utility model；
Fig. 5 is nose circle shape concrete pier of steel tube and cushion cap connection diagram in the utility model；
Fig. 6 is that the utility model flexing suppresses round end type concrete pier of steel tube organigram.
In figure：
1- nose circle shape steel pipe 2- concrete 3- steel hoops
4- rubber spacer 5- end plate 6-Teflon coatings
7- cushion cap 8- wavy metal sleeve 9- semi-circular sheet steels
10- plain plate 11- anchor hole 12- cast-in fixing bolts
13- fibre reinforced cement 14- high-strength bolt 91- weld seams
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.
The utility model proposes a kind of flexing suppress round end type concrete pier of steel tube, as shown in Fig. 2 including nose circle shape
Steel pipe 1, the nose circle shape steel pipe 1 use butt weld by 9, two blocks of plain plates 10 of semicircle steel of two pieces of identical cold roll formings
It is welded to form；The bottom of the nose circle shape steel pipe 1 is welded with end plate 5, is used between the end plate 5 and the nose circle shape steel pipe 1
Fillet weld seam；The end plate 5 respectively stays 1 anchor hole 11 along direction across bridge both ends, and the inner side of nose circle shape steel pipe 1 is filled with coagulation
Soil 2, as shown in Figure 1 and Figure 5.The bottom of the nose circle shape steel pipe 1 is sequentially provided with Teflon coatings 6 and steel hoop 3 from inside to outside,
The bottom of the steel hoop 3 is provided with rubber spacer 4, as shown in Figure 6.The steel hoop 3 is formed by two pieces of clip obvolvents, two pieces of cards
Fastened between hoop with high-strength bolt 14, as shown in figures 1 to 6
Flexing of the present utility model suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap, as shown in figure 1, holding
Platform is reinforced concrete pile cap 7, as shown in figure 3, the central position of the reinforced concrete pile cap 7, which is provided with, is used for embedding flexing
Suppress the groove of round end type concrete pier of steel tube, the depth of the groove is bridge pier buried depth, the side wall of the groove by with reinforcing bar
The wavy metal sleeve 8 of the build-in of concrete bearing platform 7 is formed, and the flexing suppresses round end type concrete pier of steel tube and passes through pre-buried spiral shell
Bolt 12 is fixed temporarily with the reinforced concrete pile cap 7；As shown in figure 1, the lubrication groove of the floor projection of the wavy metal sleeve 8
The outline of the wide floor projection for suppressing round end type concrete pier of steel tube with the flexing is similitude, and the flexing suppresses circle
The outline of the floor projection of shape steel tube concrete pier is held less than the Internal periphery of the floor projection of the wavy metal sleeve 8,
The flexing suppresses to be filled with fibre reinforced cement 13 between round end type concrete pier of steel tube and the metal bellows 8, such as
Shown in Fig. 5 and Fig. 6, the rubber spacer 4 embedded in bottom surface and the fibre reinforced cement 13 of the steel hoop 3 upper plane it
Between, as shown in Figure 6.
Flexing in the utility model suppresses the construction method of the attachment structure of round end type concrete pier of steel tube and cushion cap,
Wherein flexing suppression round end type concrete pier of steel tube is connected with reinforced concrete pile cap 7 using grouting corrugated sleeve flush type,
Bridge pier can meet prefabrication with cushion cap, assembled in situ, realize rapid construction.Comprise the following steps that：
Step 1: the prefabrication of nose circle shape steel pipe 1：End plate 5 is made according to design size, along bridge pier cross-bridges on end plate 5
1 anchor hole 11 is respectively provided with to both sides；According to design size two pieces of 10 and two block-shaped identical cold roll formings of plain plate of processing
Semicircle steel 9, two blocks of plain plates 10 and two blocks of semicircle steel 9 are welded using butt weld, weld seam 91 is shown in Fig. 2, and
Fillet weld seam upper head plate 5 is used in bottom, so as to form the steel construction part that flexing suppresses round end type concrete pier of steel tube；
Plain plate 10 is identical with the material of semicircle steel 9, can use ordinary low-carbon steel, weathering steel, also using yield strength in 550MP
High-strength steel above.If being applied to across river, across in reservoir, bridge spanning the sea, stainless steel can be also used, improves its resistance to corrosion.
Step 2: the prefabrication of reinforced concrete pile cap 7：According to the design size assembling reinforcement of reinforced concrete pile cap 7
Cage, before reinforced concrete pile cap 7 pours, it is that bridge pier reserves embedding sky to set wavy metal sleeve 8 in the embedding opening position of bridge pier
Between, the sectional dimension of the wavy metal sleeve 8 is more than the size of end plate 5 of bridge pier bottom, the height of the wavy metal sleeve 8
For bridge pier buried depth；And in setting cast-in fixing bolt 12 with anchor hole 11 is alignd on end plate 5 opening position；Casting concrete, obtain
To prefabricated reinforced concrete cushion cap 5；
Step 3: at the construction field (site), according to the reinforced concrete pile cap 7 that design attitude installation steps two are prefabricated, by step
Flexing made from one suppresses the steel construction part of round end type concrete pier of steel tube, and reinforced concrete is erected at down according to end plate 5
In wavy metal sleeve 8 in native cushion cap 7, and cast-in fixing bolt 12 aligns with the anchor hole 11 on end plate 5, passes through anchor bolts part
The steel construction part that flexing is suppressed to round end type concrete pier of steel tube is connected with reinforced concrete pile cap 7, makes nose circle shape steel pipe 1
Fixed temporarily in bridge pier specified location；Then, the casting concrete 2 into nose circle shape steel pipe 1, the inside flexing of steel pipe is suppressed, from
And constitute flexing and suppress round end type concrete pier of steel tube；The concrete 2 poured into nose circle shape steel pipe 1 can use common mixed
Solidifying soil, high-strength concrete etc., can also use environment-friendly materials such as regeneration concrete, rubber concrete etc..The wavy metal sleeve 8
Suppress the space between round end type concrete pier of steel tube with flexing to fill using fibre reinforced cement 13.
Step 4: after fibre reinforced cement 13 reaches intensity, in the bottom areas of plasticity hinge coating of nose circle shape steel pipe 1
Teflon coatings 6, along pier bottom surrounding sticking rubber bed course 4 in plane on fibre reinforced cement 13, the rubber spacer 4 is embedded in
Between the bottom surface of the steel hoop 3 and the upper plane of the fibre reinforced cement 13, so as to by steel hoop 3 and cushion cap upper surface every
Leave, with ensure steel hoop 3 suppress nose circle shape 1 bottom outward bulge song of steel pipe while, do not transmit moment of flexure and increase system stiffness.
When avoiding the bridge pier from bending simultaneously, prevent bottom steel hoop 3 from losing the ability for suppressing flexing due to extruding too early deformation, avoid pier
Bottom rigidity is excessive to propose higher requirement to cushion cap.The rubber spacer 4 is unsuitable too high, avoids steel pipe walls outward bulge at this bent.
Suppress the bottom areas of plasticity hinge of round end type concrete pier of steel tube in the flexing and installed positioned at the top of rubber spacer 4
Steel hoop 3, it is bent to suppress bottom steel pipe outward bulge；The steel hoop 3 is made up of two halves nose circle shape steel plate obvolvent, two halves nose circle shape steel
Long axial symmetry of the plate along nose circle shape steel pipe, its internal diameter is more than the external diameter of the nose circle shape steel pipe 1, highly equal to Teflon coatings 6
Coating height, two halves nose circle shape steel plate by high-strength bolt 14 in bridge pier direction across bridge both ends connect.The steel hoop 3 can be more
Change, if severe earthquake action causes bottom steel hoop to deform excessive, the steel hoop that off-loadable raw steel cuff more renews, bridge pier is repaiied after shaking
It is multiple more convenient.
In the utility model, Teflon coatings 6 are added between the steel hoop 3 and nose circle shape steel pipe 1, the Teflon is applied
Layer 6 has the characteristics of high lubrication, coefficient of friction is small, can will keep apart between steel hoop 3 and nose circle shape steel pipe 1, avoid steel hoop 3
Vertical axle power is born, only by cross force, inhibitory action is risen to the flexing of nose circle shape steel pipe 1, steel hoop 3 is given full play to nose circle shape
The horizontal restraint power of concrete pier of steel tube.
Bridge pier described in the utility model is connected with cushion cap using grouting wavy metal sleeve flush type connection method, bridge pier
It can meet prefabrication, assembled in situ, rapid construction with cushion cap.The utility model anti-seismic performance is good, lateral stiffness is big, steel hoop
It is bent that bottom steel pipe drum can effectively be suppressed, improve bridge pier ductility, and it is convenient to construct, work on the spot amount and wet trade are few, easily repair, can
Bridge pier structure applied to great science of bridge building uses
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 (5)
1. a kind of flexing suppresses round end type concrete pier of steel tube, it is characterised in that including nose circle shape steel pipe (1), the nose circle
Shape steel pipe (1) uses butt weld welding group by the semicircle steel (9) of two pieces of identical cold roll formings, two pieces of plain plates (10)
Into；The bottom of the nose circle shape steel pipe (1) is welded with end plate (5), is adopted between the end plate (5) and the nose circle shape steel pipe (1)
Use fillet weld seam；The end plate (5) respectively stays 1 anchor hole (11) along direction across bridge both ends, is filled out on the inside of the nose circle shape steel pipe (1)
Filled with concrete (2).
2. flexing suppresses round end type concrete pier of steel tube according to claim 1, it is characterised in that the nose circle shape steel pipe
(1) bottom areas of plasticity hinge is sequentially provided with polytetrafluorethylecoatings coatings (6) and steel hoop (3), the steel hoop (3) from inside to outside
Bottom be provided with rubber spacer (4).
3. flexing suppresses round end type concrete pier of steel tube according to claim 2, it is characterised in that the steel hoop (3)
Formed by two pieces of clip obvolvents, fastened between two pieces of clips with high-strength bolt (14).
4. a kind of flexing suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap, cushion cap is reinforced concrete pile cap
(7), it is characterised in that the central position of the reinforced concrete pile cap (7) is provided with for embedding such as Claims 2 or 3 institute
State the groove that flexing suppresses round end type concrete pier of steel tube, the depth of the groove is bridge pier buried depth, the side wall of the groove by
Formed with the wavy metal sleeve (8) of reinforced concrete pile cap (7) build-in, the flexing suppresses round end type concrete pier of steel tube
It is temporarily fixed by pre-embedded bolt (12) and the reinforced concrete pile cap (7)；The floor projection of the wavy metal sleeve (8)
The outline of Internal periphery and the flexing floor projection that suppresses round end type concrete pier of steel tube be similitude, the flexing
Suppress the outline of the floor projection of round end type concrete pier of steel tube less than the floor projection of the wavy metal sleeve (8)
Internal periphery, the flexing suppress filled with fiber to increase between round end type concrete pier of steel tube and the wavy metal sleeve (8)
Strong cement (13).
5. flexing suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap according to claim 4, its feature exists
In the rubber spacer (4) is between the bottom surface of the steel hoop (3) and the upper plane of the fibre reinforced cement (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720755518.5U CN207130606U (en) | 2017-06-26 | 2017-06-26 | Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720755518.5U CN207130606U (en) | 2017-06-26 | 2017-06-26 | Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207130606U true CN207130606U (en) | 2018-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720755518.5U Withdrawn - After Issue CN207130606U (en) | 2017-06-26 | 2017-06-26 | Flexing suppress round end type concrete pier of steel tube and with cushion cap attachment structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207130606U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386098A (en) * | 2017-06-26 | 2017-11-24 | 天津大学 | Flexing suppress round end type concrete pier of steel tube and with cushion cap connection structure and method |
| CN108867341A (en) * | 2018-06-11 | 2018-11-23 | 浙江大学城市学院 | A kind of GFRP pipe-concrete-shaped steel combination foot joint and its construction method |
| CN110359363A (en) * | 2019-07-26 | 2019-10-22 | 山东建筑大学 | Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part |
| CN110735389A (en) * | 2019-11-04 | 2020-01-31 | 江西科技学院 | Assembled concrete pier and assembling method thereof |
| CN108570923B (en) * | 2018-05-06 | 2020-11-27 | 北京工业大学 | Reinforced concrete pier structure capable of being quickly repaired after earthquake |
-
2017
- 2017-06-26 CN CN201720755518.5U patent/CN207130606U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386098A (en) * | 2017-06-26 | 2017-11-24 | 天津大学 | Flexing suppress round end type concrete pier of steel tube and with cushion cap connection structure and method |
| CN108570923B (en) * | 2018-05-06 | 2020-11-27 | 北京工业大学 | Reinforced concrete pier structure capable of being quickly repaired after earthquake |
| CN108867341A (en) * | 2018-06-11 | 2018-11-23 | 浙江大学城市学院 | A kind of GFRP pipe-concrete-shaped steel combination foot joint and its construction method |
| CN110359363A (en) * | 2019-07-26 | 2019-10-22 | 山东建筑大学 | Prestressing force assembled Self-resetting bridge pier column node and method are cohered in a kind of part |
| CN110735389A (en) * | 2019-11-04 | 2020-01-31 | 江西科技学院 | Assembled concrete pier and assembling method thereof |
| CN110735389B (en) * | 2019-11-04 | 2024-01-23 | 江西科技学院 | Assembled concrete bridge pier and assembling method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, 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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| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20221004 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180323 Effective date of abandoning: 20221004 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |