CN107386098A - Flexing suppress round end type concrete pier of steel tube and with cushion cap connection structure and method - Google Patents
Flexing suppress round end type concrete pier of steel tube and with cushion cap connection structure and method Download PDFInfo
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- CN107386098A CN107386098A CN201710499667.4A CN201710499667A CN107386098A CN 107386098 A CN107386098 A CN 107386098A CN 201710499667 A CN201710499667 A CN 201710499667A CN 107386098 A CN107386098 A CN 107386098A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention 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 the inside of nose circle shape steel pipe, its underpart sets steel hoop, and Teflon coatings are added between steel hoop and nose circle shape 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.Anti-seismic performance of the present invention 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
The present invention relates to science of bridge building field, 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.
The content of the invention
The present invention proposes that a kind of flexing suppresses round end type concrete pier of steel tube and with the attachment structure of cushion cap and quickly applied
Work method.The flexing suppress round end type concrete pier of steel tube its object is to overcome reinforced concrete bridge pier low bearing capacity,
The shortcomings that ductility difference, make full use of the good advantage of concrete filled steel tube anti-seismic performance, meet bridge pier direction across bridge with along bridge to anti-
The big demand of curved stiffness difference, and steel hoop is added to suppress the flexing of bridge pier bottom steel pipe by bottom, improve nose circle shape steel pipe
Concrete pier ductility, avoid the destruction of bridge pier structure under severe earthquake action.The bridge pier is connected rapid constructing method with cushion cap
The wavy metal sleeve flush type that is in the milk connects, and its object is to propose that one kind can be applied to precast pier, prefabricated cushion cap connection anchor
Solid construction method, meet the needs of bridge rapid construction.
In order to solve the above-mentioned technical problem, a kind of flexing proposed by the present invention suppresses round end type concrete pier of steel tube, bag
Nose circle shape steel pipe is included, the nose circle shape steel pipe uses docking by semicircle steel, the two blocks of plain plates of two pieces of identical cold roll formings
Weld seam is welded to form；The bottom of the nose circle shape steel pipe is welded with end plate, is used between the end plate and the nose circle shape steel pipe
Fillet weld seam；The end plate respectively stays 1 anchor hole along direction across bridge both ends, and concrete is filled with the inside of the nose circle shape steel pipe.
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.
Flexing of the present invention suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap, and cushion cap is that armored concrete is held
Platform, 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 set with reinforced concrete pile cap build-in
Cylinder is formed, and it is temporarily solid 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 level of round end type concrete pier of steel tube with the flexing
The outline of 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 institute
The Internal periphery of the floor projection of wavy metal sleeve is stated, the flexing suppresses round end type concrete pier of steel tube and the metal wave
Fibre reinforced cement is filled between line sleeve.
The rubber spacer is between the bottom surface of the steel hoop and the upper plane of the fibre reinforced cement.
Flexing of the present invention suppresses the construction method of the attachment structure of round end type concrete pier of steel tube and cushion cap, including following
Step：
Step 1: nose circle shape steel pipe prefabrication：End plate is made according to design size, along bridge pier direction across bridge two on end plate
Side is respectively provided with 1 anchor hole；The semicircle steel of two blocks of plain plates and two block-shaped identical cold roll formings is processed according to design size,
Two blocks of plain plates and two blocks of semicircle steel are welded using butt weld, and fillet weld seam upper head plate is used in bottom, so as to
Form the steel construction part that flexing suppresses round end type concrete pier of steel tube；
Step 2: reinforced concrete pile cap prefabrication：According to the design size banding steel cage of reinforced concrete pile cap,
Before reinforced concrete pile cap pours, it is that bridge pier reserves embedding space, institute to set wavy metal sleeve in the embedding opening position of bridge pier
The sectional dimension for stating wavy metal sleeve is more than the end plate size of bridge pier bottom, and the height of the wavy metal sleeve is buried for bridge pier
Put depth；And cast-in fixing bolt is set in the opening position alignd with anchor hole on end plate；Casting concrete, obtain precast reinforced coagulation
Native cushion cap；
Step 3: at the construction field (site), according to the reinforced concrete pile cap that design attitude installation steps two are prefabricated, by step 1
Obtained flexing suppresses the steel construction part of round end type concrete pier of steel tube, is erected at armored concrete down according to end plate and holds
In wavy metal sleeve in platform, and cast-in fixing bolt aligns with the anchor hole on end plate, is suppressed flexing by anchor bolts part
The steel construction part of round end type concrete pier of steel tube is connected with reinforced concrete pile cap, makes nose circle shape steel pipe in bridge pier specific bit
It is interim fixed to put place；Then, the casting concrete into nose circle shape steel pipe, round end type concrete filled steel tube is suppressed so as to constitute flexing
Bridge pier；The space that the wavy metal sleeve and flexing suppress between round end type concrete pier of steel tube uses fibre reinforced cement
Filling；
Step 4: after fibre reinforced cement reaches intensity, Teflon is coated in nose circle shape steel pipe bottom areas of plasticity hinge
Coating, suppress nose circle shape steel tube along pier bottom surrounding sticking rubber bed course in plane on fibre reinforced cement in the flexing and mix
Coagulate the bottom areas of plasticity hinge of native bridge pier and positioned at the top of rubber spacer installation steel hoop, and fastened with high-strength bolt.
Further, in step 1, plain plate is identical with the material of semicircle steel, and from ordinary low-carbon steel, weathering steel
With yield strength in any one of more than 550MP high-strength steel and stainless steel.
In step 3, the concrete poured into nose circle shape steel pipe is mixed selected from normal concrete, high-strength concrete, regeneration
Any one of solidifying soil and rubber concrete.
In step 4, the steel hoop is made up of two halves nose circle shape steel plate obvolvent, and two halves nose circle shape steel plate is along nose circle shape steel
The long axial symmetry of pipe, its internal diameter are more than the external diameter of the nose circle shape steel pipe, highly the coating height equal to Teflon coatings, two halves
Nose circle shape steel plate is connected by high-strength bolt in bridge pier direction across bridge both ends.
Compared with prior art, the beneficial effects of the invention are as follows：
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.Present invention increase bottom steel hoop can effectively suppress steel
The outside local drum of pipe is bent, improves bridge pier ductility, prevents bridge collapse caused by bridge pier destruction.
3. difficulty is repaired after existing bridge pier form shake, if present invention steel hoop generation in bridge pier bottom under severe earthquake action is serious
Deformation, can directly unload the steel hoop that steel hoop more renews, and it is more convenient to make to repair after shake.
The rapid constructing method that the bridge pier of the invention is connected with cushion cap, compared with existing pier construction method, easy construction,
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 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 is that flexing of the present invention 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 present invention；
Fig. 3 is prefabricated cushion cap schematic diagram in the present invention；
Fig. 4 is nose circle shape steel pipe and cushion cap attachment structure schematic diagram in the present invention；
Fig. 5 is nose circle shape concrete pier of steel tube and cushion cap connection diagram in the present invention；
Fig. 6 is that flexing of the present invention 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 solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, described is specific
Only the present invention is explained for embodiment, is not intended to limit the invention.
A kind of flexing proposed by the present invention suppresses 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 is welded by 9, two blocks of plain plates 10 of semicircle steel of two pieces of identical cold roll formings using butt weld
Composition；The bottom of the nose circle shape steel pipe 1 is welded with end plate 5, and fillet welding is used between the end plate 5 and the nose circle shape steel pipe 1
Seam welding；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 concrete 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, described
The bottom of 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 clips it
Between fastened with high-strength bolt 14, as shown in figures 1 to 6
The flexing of the present invention suppresses the attachment structure of round end type concrete pier of steel tube and cushion cap, as shown in figure 1, cushion cap 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 the suppression of embedding flexing
The groove of round end type concrete pier of steel tube, the depth of the groove are bridge pier buried depth, the side wall of the groove by with reinforced concrete
The wavy metal sleeve 8 of the native build-in of cushion cap 7 is formed, and the flexing suppresses round end type concrete pier of steel tube and passes through pre-embedded bolt 12
Fixed temporarily with the reinforced concrete pile cap 7；As shown in figure 1, the Internal periphery of the floor projection of the wavy metal sleeve 8 with
The outline that the flexing suppresses the floor projection of round end type concrete pier of steel tube is similitude, and the flexing suppresses round end type
The outline of the floor projection of concrete pier of steel tube is less than the Internal periphery of the floor projection of the wavy metal sleeve 8, described
Flexing suppresses be filled with fibre reinforced cement 13 between round end type concrete pier of steel tube and the metal bellows 8, as Fig. 5 with
Shown in Fig. 6, the rubber spacer 4 is between the bottom surface of the steel hoop 3 and the upper plane of the fibre reinforced cement 13, such as
Shown in Fig. 6.
Flexing in the present invention suppresses the construction method of the attachment structure of round end type concrete pier of steel tube and cushion cap, wherein
Flexing is suppressed round end type concrete pier of steel tube and is connected with reinforced concrete pile cap 7 using grouting corrugated sleeve flush type, bridge pier
It 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 present invention, Teflon coatings 6, the Teflon coatings 6 are added between the steel hoop 3 and nose circle shape steel pipe 1
With the characteristics of height lubricates, coefficient of friction is small, it can will keep apart between steel hoop 3 and nose circle shape steel pipe 1, avoid steel hoop 3 from holding
By vertical axle power, 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 steel
The horizontal restraint power of pipe concrete bridge pier.
Heretofore described bridge pier is connected with cushion cap using grouting wavy metal sleeve flush type connection method, and bridge pier is with holding
Platform can meet prefabrication, assembled in situ, rapid construction.Anti-seismic performance of the present invention is good, lateral stiffness is big, and steel hoop can effectively press down
Steel pipe drum in bottom processed is bent, improves 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 weight
The bridge pier structure of big science of bridge building uses
Although above in conjunction with accompanying drawing, invention has been described, and the invention is not limited in above-mentioned specific implementation
Mode, above-mentioned embodiment is only schematical, rather than restricted, and one of ordinary skill in the art is at this
Under the enlightenment of invention, without deviating from the spirit of the invention, many variations can also be made, these belong to the present invention's
Within protection.
Claims (9)
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 Teflon coatings (6) and steel hoop (3), the bottom of the steel hoop (3) from inside to outside
Portion is 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), which is provided with, to be used in embedding such as claims 1 to 3
Any flexing suppresses the groove of round end type concrete pier of steel tube, and the depth of the groove is bridge pier buried depth, the groove
For side wall by being formed with the wavy metal sleeve (8) of reinforced concrete pile cap (7) build-in, the flexing suppresses round end type steel tube concrete
Native bridge pier is temporarily fixed by pre-embedded bolt (12) and the reinforced concrete pile cap (7)；The water of the wavy metal sleeve (8)
The outline for the floor projection that the Internal periphery of flat projection suppresses round end type concrete pier of steel tube with the flexing is similitude, institute
The outline for stating the floor projection that flexing suppresses round end type concrete pier of steel tube is less than the level of the wavy metal sleeve (8)
The Internal periphery of projection, the flexing suppress to be filled between round end type concrete pier of steel tube and the wavy metal sleeve (8)
Fibre reinforced 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).
6. suppress the construction of the attachment structure of round end type concrete pier of steel tube and cushion cap according to the flexing of claim 4 or 5
Method, it is characterised in that comprise the following steps：
Step 1: nose circle shape steel pipe (1) prefabrication：End plate (5) is made according to design size, it is horizontal along bridge pier on end plate (5)
Bridge is respectively provided with 1 anchor hole (11) to both sides；Two pieces of plain plates (10) and two block-shaped identical clod washes are processed according to design size
The semicircle steel (9) of shaping, two pieces of plain plates (10) and two pieces of semicircle steel (9) are welded using butt weld, and in bottom
Using fillet weld seam upper head plate (5), so as to form the steel construction part that flexing suppresses round end type concrete pier of steel tube；
Step 2: reinforced concrete pile cap (7) prefabrication：According to the design size assembling reinforcement of reinforced concrete pile cap (7)
Cage, before reinforced concrete pile cap (7) pours, set wavy metal sleeve (8) to be that bridge pier is reserved in the embedding opening position of bridge pier and bury
Between being empty, the sectional dimension of the wavy metal sleeve (8) is more than end plate (5) size of bridge pier bottom, the wavy metal set
The height of cylinder (8) is bridge pier buried depth；And in setting cast-in fixing bolt with anchor hole (11) is alignd on end plate (5) opening position
(12)；Casting concrete, obtain prefabricated reinforced concrete cushion cap (5)；
Step 3: at the construction field (site), according to the prefabricated reinforced concrete pile cap of design attitude installation steps two (7), by step 1
Obtained flexing 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
The steel construction part that anchor bolts part suppresses flexing round end type concrete pier of steel tube is connected with reinforced concrete pile cap (7),
Nose circle shape steel pipe (1) is set to be fixed temporarily in bridge pier specified location；Then, to nose circle shape steel pipe (1) interior casting concrete (2),
Suppress round end type concrete pier of steel tube so as to constitute flexing；The wavy metal sleeve (8) suppresses nose circle shaped steel with flexing
Filled using fibre reinforced cement (13) in space between pipe concrete bridge pier；
Step 4: after fibre reinforced cement (13) reaches intensity, coated in nose circle shape steel pipe (1) bottom areas of plasticity hinge
Teflon coatings (6), along pier bottom surrounding sticking rubber bed course (4) in plane on fibre reinforced cement (13), in the flexing
Suppress the areas of plasticity hinge of round end type concrete pier of steel tube bottom and positioned at the top of rubber spacer (4) installation steel hoop
(3), and with high-strength bolt (14) fasten.
7. flexing suppresses the construction party of the attachment structure of round end type concrete pier of steel tube and cushion cap according to claim 6
Method, it is characterised in that in step 3, to the concrete (2) poured in nose circle shape steel pipe (1) selected from normal concrete, high-strength
Any one of concrete, regeneration concrete and rubber concrete.
8. flexing suppresses the construction party of the attachment structure of round end type concrete pier of steel tube and cushion cap according to claim 6
Method, it is characterised in that in step 1, plain plate (10) is identical with the material of semicircle steel (9), and from ordinary low-carbon steel, resistance to
Steel and yield strength are waited in any one of more than 550MP high-strength steel and stainless steel.
9. flexing suppresses the construction party of the attachment structure of round end type concrete pier of steel tube and cushion cap according to claim 6
Method, it is characterised in that in step 4, the steel hoop (3) is made up of two halves nose circle shape steel plate obvolvent, two halves nose circle shape steel plate edge
The long axial symmetry of 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.
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| CN201710499667.4A CN107386098B (en) | 2017-06-26 | 2017-06-26 | Buckling restrained round-end type steel pipe concrete pier and bearing platform connecting structure and method |
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| CN201710499667.4A CN107386098B (en) | 2017-06-26 | 2017-06-26 | Buckling restrained round-end type steel pipe concrete pier and bearing platform connecting structure and method |
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| CN108457172A (en) * | 2018-04-03 | 2018-08-28 | 中国建筑第五工程局有限公司 | Assembling type girder bridge and construction method |
| CN108505433A (en) * | 2018-04-27 | 2018-09-07 | 福建工程学院 | A kind of bridge pier structure and its construction method |
| CN110306424A (en) * | 2018-03-20 | 2019-10-08 | 比亚迪股份有限公司 | It is used to support support column of track girder and preparation method thereof, the track with it |
| CN112458908A (en) * | 2020-11-12 | 2021-03-09 | 北京城建道桥建设集团有限公司 | Construction method for steel hoops of pier anti-seismic facility in two-step accurate-in-place mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108457172A (en) * | 2018-04-03 | 2018-08-28 | 中国建筑第五工程局有限公司 | Assembling type girder bridge and construction method |
| CN108505433A (en) * | 2018-04-27 | 2018-09-07 | 福建工程学院 | A kind of bridge pier structure and its construction method |
| CN108505433B (en) * | 2018-04-27 | 2023-11-21 | 福建工程学院 | Pier structure and construction method thereof |
| CN112458908A (en) * | 2020-11-12 | 2021-03-09 | 北京城建道桥建设集团有限公司 | Construction method for steel hoops of pier anti-seismic facility in two-step accurate-in-place mode |
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| CN107386098B (en) | 2022-10-04 |
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