CN209669689U - A kind of combined connecting concrete pier of steel tube - Google Patents
A kind of combined connecting concrete pier of steel tube Download PDFInfo
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- CN209669689U CN209669689U CN201920165252.8U CN201920165252U CN209669689U CN 209669689 U CN209669689 U CN 209669689U CN 201920165252 U CN201920165252 U CN 201920165252U CN 209669689 U CN209669689 U CN 209669689U
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Abstract
The utility model relates to a kind of combined connecting concrete pier of steel tube, including load-bearing basis and concrete filled steel tube；The concrete filled steel tube includes steel pipe, bottom plate and cast-in-place in the pier column concrete in the steel pipe；It is offered on the bottom plate multiple for fixing the fixation hole of anchor bolt；The anchor bolt passes through fixation hole from top to bottom and is fitted close with nut and bottom plate is locked on the basis of load-bearing；Load-bearing basis upper end is longitudinally pre-buried to be fixed with the firm pipe of multiple U-typeds；Two openings that the U-typed consolidates pipe are connected to steel pipe inner chamber, and pier column concrete is filled into the firm pipe of U-typed after solidification from opening and forms resistance to plucking button；The utility model is combined using prefabricated and cast-in-place two kinds of construction methods, can make to connect into an entirety to combined type between steel pipe, pier column concrete and load-bearing basis three, bridge pier resistance to plucking, shearing resistance and shock resistance made from construction are strong.
Description
Technical field
The utility model relates to technical field of bridge engineering, specifically a kind of combined connecting steel pipe encased concrete bridge
Pier.
Background technique
Concrete filled steel tube refers to the fill concrete in steel pipe, can bear jointly external load with steel pipe after concrete setting
It is mixed can be divided into concrete filled steel tube, concrete-filled rectangular steel tube and polygonal steel pipe by section form difference for the structural elements of effect
Solidifying soil etc..The compression strength of concrete is high, but bending resistance is very weak；And the bending resistance of steel is strong, has good elastoplasticity,
But unstability is easy when being pressurized and loses axial compression resistance ability.And concrete filled steel tube can combine the advantages of the two in structure
Together, steel pipe can make concrete be in side loaded state, and compression strength can significantly improve, simultaneously because concrete is deposited
The rigidity of steel pipe is being improved, the two plays a role jointly, to greatly increase bearing capacity.In recent years, due to steel pipe
Concrete structure has the advantages such as bearing capacity is high, ductility is good, easy for construction and overall economic efficiency is significant, gradually applies in China
In civil engineering.
It is disclosed application No. is the Chinese patent of CN 201610500091.4 and a kind of damages controllable Self-resetting precast segment
Steel-pipe assembly concrete pier and the practice, the exposed node connector of the bridge pier is by sole, anchor bolt, end connecting plate, buckling-restrained
Casing composition, exposed node connector are connect by anchor bolt with cushion cap, the exposed node connector of this concrete pier of steel tube
Resistance to plucking, shearing resistance and anti-seismic performance it is poor, cause the overall stability of bridge and safety poor.Application No. is CN
201721774527.5 Chinese patent disclose a kind of concrete-filled double skin steel tube bridge pier comprising pier footing and hollow
Interlayer steel tube concrete column, the Concrete-filled Double Skin Steel Tube Columns are connect by connection component with pier footing basis, connection group
Part includes bending resistance anchoring prestress reinforcing bar and the anchoring end being arranged on the lateral wall of Concrete-filled Double Skin Steel Tube Columns, is resisted
The lower end that bent anchor consolidates deformed bar is connect with pier footing, and the upper end of bending resistance anchoring prestress reinforcing bar is connect with anchoring end.
Existing concrete pier of steel tube is usually on the basis of steel pipe is fixed on load-bearing, and the pier column concrete of internal filling with hold
The not formed effective connection in weight basis, causes to fail effectively to connect between steel pipe, pier column concrete and load-bearing basis three
At an entirety, construction bridge pier resistance to plucking obtained, shearing resistance and shock resistance are poor, and the stability of bridge and safety are lower.
Utility model content
In order to solve the above problem present in the prior art, it is mixed that the utility model provides a kind of combined connecting steel pipe
Solidifying soil bridge pier can make to connect into an entirety, construction system to combined type between steel pipe, pier column concrete and load-bearing basis three
Bridge pier resistance to plucking, shearing resistance and shock resistance it is strong, and can by it is prefabricated and it is cast-in-place combine, can effectively shorten on-site construction time.
The technical solution of the utility model is as follows:
A kind of combined connecting concrete pier of steel tube, including pouring in the load-bearing basis on ground and positioned at the load-bearing base
The concrete filled steel tube of plinth upper end；The concrete filled steel tube includes longitudinally disposed steel pipe, is fixed on the steel pipe bottom surrounding
Bottom plate and cast-in-place in the pier column concrete in the steel pipe；It is offered on the bottom plate multiple for fixing the fixation of anchor bolt
Hole；The anchor bolt passes through fixation hole from top to bottom and is fitted close with nut and bottom plate is locked on the basis of load-bearing；The load-bearing
Basic upper end is longitudinally pre-buried to be fixed with the firm pipe of multiple U-typeds；Two openings that the U-typed consolidates pipe connect with steel pipe inner chamber
Logical, pier column concrete is filled into the firm pipe of U-typed after solidification from opening and forms resistance to plucking button.
Further, the bottom plate is arranged at intervals with bottom rib around the circumferencial direction of steel pipe；Bottom rib one end and steel
Pipe outer wall is fixedly connected, and the bottom surface of bottom rib is fixedly connected with bottom plate.
Further, cast-in-place on the basis of the load-bearing of the steel pipe lower end outside to be fixed with cladding concrete；The bottom plate and
Bottom rib is located in cladding concrete.
Further, multilayer is fixed at intervals in the steel pipe from top to bottom for improving the anti-face pressure flexion capabilities of steel pipe
Reinforcer；The reinforcer includes the firm ring of cyclic structure and the steel mesh with network；The firm ring outer wall and steel
Inside pipe wall is fixedly connected, and firm ring inner wall is fixedly connected with steel mesh.
Further, the steel pipe inner wall is fixed with multiple for improving steel pipe inner wall and pier column concrete contact force
Strengthening nail.
Further, the steel pipe top is fixed with the top plate for improving steel pipe upper end non-deformability；The top
At least one is offered on plate for the perfusing hole of pier column concrete to be perfused into steel pipe.
Further, longitudinal direction is pre-buried on the basis of the load-bearing is fixed with more reinforcing bars.
Further, the reinforcing bar is spiral.
Further, the pier column concrete is slightly expanded concrete.
The utility model has the following beneficial effects:
1, a kind of combined connecting concrete pier of steel tube of the utility model is closely matched by pre-buried anchor screw bolt and nut
It closes, it can linking together steel pipe and load-bearing base fixed；Pier column filling concrete is consolidated into U-typed can after solidification in pipe
Form resistance to plucking button, can linking together pier column concrete and load-bearing base fixed, and pier column filling concrete is in steel
In pipe, it can make to connect into combined type an entirety between steel pipe, pier column concrete and load-bearing basis three, made from construction
Bridge pier resistance to plucking, shearing resistance and shock resistance are strong, and the stability and safety of bridge can be improved.
2, a kind of combined connecting concrete pier of steel tube of the utility model, bottom rib can effectively improve between steel pipe and bottom plate
Bonding strength, then on the basis of steel pipe being stably fixed to load-bearing by anchor bolt, and the cladding poured outside bottom plate and bottom rib is mixed
On the basis of steel pipe further can be fixed on load-bearing by solidifying soil, the resistance to plucking of bridge pier, shearing resistance and shock resistance are strong.
3, steel can be improved in the reinforcer of a kind of combined connecting concrete pier of steel tube of the utility model, Spaced setting
The anti-face pressure flexion capabilities of pipe, and reinforcer and strengthening nail can effectively improve the contact force of pier column concrete and steel pipe, can make
Steel pipe and pier column concrete form an entirety.
4, a kind of combined connecting concrete pier of steel tube of the utility model, top plate can effectively improve steel pipe upper end resistance
Shape ability, the steel tube end part that can be effectively reduced in transport or work progress deform, can be improved concrete pier of steel tube at
Type precision.
5, a kind of combined connecting concrete pier of steel tube of the utility model, pre-buried reinforcing bar pours bridge pier on the basis of load-bearing
After column concrete, resistance to plucking, shearing resistance and the shock resistance on load-bearing basis and pier column concrete can be improved.
6, a kind of combined connecting concrete pier of steel tube of the utility model, can by steel pipe, bottom plate, bottom rib, reinforcer, plus
Strong nail and top plate is prefabricated welds together, can effectively combine prefabricated and cast-in-place two ways, when can reduce site operation
Between, accelerate the speed of application of engineering.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is the load-bearing basis cast-in fixing bolt of the utility model, the firm pipe of U-typed and reinforcing bar；
Fig. 2 is the structural schematic diagram of the steel tube prefabricated part of the utility model；
Fig. 3 is structural schematic diagram when steel pipe is fixed on load-bearing basis by the utility model；
Fig. 4 is structural schematic diagram when the utility model pours cladding concrete；
Fig. 5 is the structural schematic diagram after the pier column concrete setting of the utility model；
Fig. 6 is that the U-typed of the utility model consolidates the structural schematic diagram of pipe；
Fig. 7 is the top view of the reinforcer of the utility model.
Appended drawing reference indicates in figure are as follows:
1, load-bearing basis；2, concrete filled steel tube；20, steel pipe；21, pier column concrete；210, resistance to plucking button；22, bottom plate；
220, fixation hole；23, bottom rib；24, reinforcer；240, ring is consolidated；241, steel mesh；25, strengthening nail；26, top plate；260, it is perfused
Mouthful；27, reinforcing bar；3, anchor bolt；4, nut；5, the firm pipe of U-typed；50, it is open；6, concrete is coated.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Referring to Fig. 1 to Fig. 7, a kind of combined connecting concrete pier of steel tube, including pouring basic 1 He of load-bearing in ground
Concrete filled steel tube 2 positioned at basic 1 upper end of the load-bearing；The concrete filled steel tube 2 includes longitudinally disposed steel pipe 20, is fixed on
The bottom plate 22 of the 20 bottom surrounding of steel pipe and cast-in-place in the pier column concrete 21 in the steel pipe 20；It is opened on the bottom plate 22
Equipped with multiple for fixing the fixation hole 220 of anchor bolt 3；The anchor bolt 3 is from top to bottom across fixation hole 220 and close with nut 4
Bottom plate 22 is locked on load-bearing basis 1 by cooperation；Basic 1 upper end of the load-bearing is longitudinally pre-buried to be fixed with the firm pipe of multiple U-typeds
5；Two openings 50 that the U-typed consolidates pipe 5 are connected to 20 inner cavity of steel pipe, and pier column concrete 21 is filled into from opening 50
U-typed, which consolidates, forms resistance to plucking button 210 after solidification in pipe 5.
As shown in Figures 2 and 3, the bottom plate 22 is arranged at intervals with bottom rib 23 around the circumferencial direction of steel pipe 20；It is described
Rib 23 one end in bottom is fixedly connected with 20 outer wall of steel pipe, and the bottom surface of bottom rib 23 is fixedly connected with bottom plate 22.
As shown in figure 4, cast-in-place on the load-bearing basis 1 of 20 lower end outside of steel pipe be fixed with cladding concrete 6；The bottom
Plate 22 and bottom rib 23 are located in cladding concrete 6.
As shown in Figure 2 and Figure 7, multilayer is fixed at intervals in the steel pipe 20 from top to bottom for improving the anti-face pressure of steel pipe 20
The reinforcer 24 of flexion capabilities；The reinforcer 24 includes the firm ring 240 of cyclic structure and the steel mesh with network
241；240 outer wall of firm ring is fixedly connected with 20 inner wall of steel pipe, and firm 240 inner wall of ring is fixedly connected with steel mesh 241.
As shown in fig. 7,20 inner wall of steel pipe be fixed with it is multiple for improving 20 inner wall of steel pipe and pier column concrete 21
The strengthening nail 25 of contact force.
As shown in Figures 2 to 4,20 top of steel pipe is fixed with the top for improving 20 upper end non-deformability of steel pipe
Plate 26；At least one is offered on the top plate 26 for the perfusing hole 260 of pier column concrete 21 to be perfused into steel pipe 20.
As shown in Figure 1, longitudinal direction is pre-buried on the load-bearing basis 1 is fixed with more reinforcing bars 27.
As shown in Figure 1, the reinforcing bar 27 is spiral.
As shown in figure 5, the pier column concrete 21 is slightly expanded concrete.
The concrete construction method of the utility model:
A kind of concrete construction method of combined connecting concrete pier of steel tube of the utility model, first in factory by bottom plate
22, bottom rib 23, reinforcer 24, strengthening nail 25 and top plate 26 are weldingly fixed on steel pipe 20, are precast mixed for pouring pier column
20 template of steel pipe of solidifying soil 21；Then, according to the setting position of bridge pier, pour load-bearing basis 1 on the ground, and by anchor bolt 3,
U-typed consolidates pipe 5 and reinforcing bar 27 is embedded on load-bearing basis 1；Secondly, hoisting prefabricated good 20 template of steel pipe, by anchor bolt 3 under
Fixation hole 220 is passed through to upper, and the steel pipe 20 being fixed on bottom plate 22 is locked at the tight fit of nut 4 by anchor bolt 3 and is held
On weight basis 1, pre-buried reinforcing bar 27 can also be extended through from the grid gap of steel mesh 241 into steel pipe 20；Then, by pier column
Concrete 21 is filled into steel pipe 20 from perfusing hole 260, and cast-in-place pier column concrete 21 under the effect of gravity can be from steel mesh 241
Grid gap pass through, until U-typed is consolidated pipe 5 to pier column concrete 21 and steel pipe 20 is filled closely knit, it is steady to be cast in U-typed
Gu the pier column concrete 21 in pipe 5 forms resistance to plucking button 210 after solidifying；Finally, it is cast-in-place in 20 lower end of steel pipe to coat concrete 6
On the load-bearing basis 1 in outside, until cladding concrete 6 coats bottom plate 22 and bottom rib 23 in the inner, combined connecting steel pipe is mixed
Solidifying soil Bridge Pier Construction finishes；The construction method can make combined type between basic 1 three of steel pipe 20, pier column concrete 21 and load-bearing
Ground connects into an entirety, and the bridge pier resistance to plucking obtained of constructing, shearing resistance and shock resistance are strong, and can by it is prefabricated and it is cast-in-place combine,
It can effectively shorten on-site construction time.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (9)
1. a kind of combined connecting concrete pier of steel tube, it is characterised in that: including pouring in the load-bearing basic (1) on ground and position
Concrete filled steel tube (2) in basic (1) upper end of the load-bearing；The concrete filled steel tube (2) include longitudinally disposed steel pipe (20),
It is fixed on the bottom plate (22) of the steel pipe (20) bottom surrounding and cast-in-place in the pier column concrete (21) in the steel pipe (20)；
It is offered on the bottom plate (22) multiple for fixing the fixation hole (220) of anchor bolt (3)；The anchor bolt (3) passes through from top to bottom
Bottom plate (22) is simultaneously locked on load-bearing basic (1) with nut (4) tight fit by fixation hole (220)；In the load-bearing basic (1)
End longitudinal direction is pre-buried to be fixed with the firm pipe (5) of multiple U-typeds；Two openings (50) of the firm pipe (5) of the U-typed are and steel pipe
(20) inner cavity is connected to, and pier column concrete (21) is filled into the firm pipe (5) of U-typed after solidification from opening (50) and forms resistance to plucking button
(210).
2. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: the bottom plate (22) is enclosed
Bottom rib (23) are arranged at intervals with around the circumferencial direction of steel pipe (20)；Described bottom rib (23) one end and the fixed company of steel pipe (20) outer wall
It connects, the bottom surface of bottom rib (23) is fixedly connected with bottom plate (22).
3. a kind of combined connecting concrete pier of steel tube as claimed in claim 2, it is characterised in that: under the steel pipe (20)
Cast-in-place be fixed in the load-bearing basic (1) in outside is held to coat concrete (6)；It is mixed that the bottom plate (22) and bottom rib (23) are located at cladding
In solidifying soil (6).
4. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: in the steel pipe (20)
It is fixed at intervals with multilayer from top to bottom for improving the reinforcer (24) of the anti-face pressure flexion capabilities of steel pipe (20)；The reinforcer
It (24) include the firm ring (240) of cyclic structure and the steel mesh (241) with network；Firm ring (240) outer wall with
Steel pipe (20) inner wall is fixedly connected, and firm ring (240) inner wall is fixedly connected with steel mesh (241).
5. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: in the steel pipe (20)
Wall is fixed with multiple for improving the strengthening nail (25) of steel pipe (20) inner wall Yu pier column concrete (21) contact force.
6. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: steel pipe (20) top
End is fixed with the top plate (26) for improving steel pipe (20) upper end non-deformability；At least one is offered on the top plate (26)
A perfusing hole (260) for perfusion pier column concrete (21) into steel pipe (20).
7. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: the load-bearing basis
(1) longitudinal direction is pre-buried on is fixed with more reinforcing bars (27).
8. a kind of combined connecting concrete pier of steel tube as claimed in claim 7, it is characterised in that: the reinforcing bar (27) is
Spiral.
9. a kind of combined connecting concrete pier of steel tube as described in claim 1, it is characterised in that: the pier column coagulation
Native (21) are slightly expanded concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920165252.8U CN209669689U (en) | 2019-01-30 | 2019-01-30 | A kind of combined connecting concrete pier of steel tube |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920165252.8U CN209669689U (en) | 2019-01-30 | 2019-01-30 | A kind of combined connecting concrete pier of steel tube |
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| CN209669689U true CN209669689U (en) | 2019-11-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577176A (en) * | 2019-01-30 | 2019-04-05 | 深圳市市政设计研究院有限公司福建分公司 | A kind of combined connecting concrete pier of steel tube and its construction method |
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2019
- 2019-01-30 CN CN201920165252.8U patent/CN209669689U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577176A (en) * | 2019-01-30 | 2019-04-05 | 深圳市市政设计研究院有限公司福建分公司 | A kind of combined connecting concrete pier of steel tube and its construction method |
| CN109577176B (en) * | 2019-01-30 | 2024-04-23 | 深圳市市政设计研究院有限公司福建分公司 | Composite connection type concrete filled steel tube pier and construction method thereof |
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