CN209144853U - A kind of structure of pile foundation of bridge pier - Google Patents
A kind of structure of pile foundation of bridge pier Download PDFInfo
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- CN209144853U CN209144853U CN201821305147.1U CN201821305147U CN209144853U CN 209144853 U CN209144853 U CN 209144853U CN 201821305147 U CN201821305147 U CN 201821305147U CN 209144853 U CN209144853 U CN 209144853U
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- tubular pile
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- prefabricated tubular
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Abstract
The utility model relates to technical field of bridge construction, and in particular to a kind of structure of pile foundation of bridge pier, including prefabricated cushion cap and prefabricated tubular pile；The prefabricated cushion cap is set to the top of the prefabricated tubular pile；Central duct and periphery duct are offered on the prefabricated cushion cap, the periphery duct is arranged around the central duct；Spacer bar is provided in the periphery duct.The utility model has the beneficial effects that: passing through the setting of positioning fixed steel bars and fixing steel plate, prefabricated cushion cap and prefabricated tubular pile can be attached by mechanical structure during the installation process, facilitate fixation, save the time of construction, while increasing the safety in work progress；Spacer bar is capable of providing preferable horizontal plane shear behavior simultaneously, increases the relative stability between pile foundation of bridge pier and prefabricated cushion cap, avoids the two that opposite sliding occurs；The setting of fixed steel bars can effectively reinforce the connection between prefabricated tubular pile and cast-in-place plain concrete.
Description
Technical field
The utility model relates to technical field of bridge construction, and in particular to a kind of structure of pile foundation of bridge pier.
Background technique
The method that highway in China bridge pile foundation, cushion cap mostly use greatly cast-in-site at present is constructed, this construction method
Period is long, and construction efficiency is low, and work progress is affected to surrounding resident life.
Utility model content
In order to overcome the defects of the prior art described above, the technical problem to be solved by the utility model is to provide one kind to mention
The structure of the pile foundation of bridge pier of high construction efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
A kind of structure of pile foundation of bridge pier, including prefabricated cushion cap and prefabricated tubular pile；The prefabricated cushion cap is set to described prefabricated
The top of tubular pole；
Central duct and periphery duct are offered on the prefabricated cushion cap, the periphery duct is set around the central duct
It sets, the central duct and the periphery duct are set to the top of the prefabricated tubular pile pipeline, the central duct and described
It is parallel to each other between the axis in periphery duct；
It is provided with fixing steel plate at the upper opening in the periphery duct, reinforced hole, institute are provided on the fixing steel plate
Reinforced hole is stated to be set to above the duct in the periphery duct；Spacer bar, the positioning steel are provided in the periphery duct
Muscle protrudes into the pipeline of the prefabricated tubular pile, and the top of the spacer bar is fixed on the fixing steel plate.
Further, grout hole is additionally provided on the fixing steel plate, the grout hole is placed in the hole in the periphery duct
Above road.
Further, tubular pole lengthways main steel bar is provided in the side wall of the prefabricated tubular pile.
Further, the top of the prefabricated tubular pile is arranged with hollow weather-proof steel bushing.
Further, the prefabricated tubular pile further includes fixed steel bars, and the length of the fixed steel bars is less than the prefabricated pipe
Stake radius, one end of the fixed steel bars traverse into the hollow weather-proof steel bushing and the prefabricated tubular pile, and the other end stretches out
The hollow weather-proof steel bushing is simultaneously fixed by anchorage.
Further, the top of the spacer bar is provided with helicitic texture, and the spacer bar is pierced by the reinforced hole
And it is fixed by nut.
Further, groove, the central duct and the periphery duct are additionally provided on the top surface of the prefabricated cushion cap
It is arranged in the groove.
Further, high-performance epoxy resin mortar is filled in the periphery duct and the groove；The prefabricated tubular pile
Plain concrete is filled in pipeline and central duct.
A kind of construction method of above-mentioned pile foundation of bridge pier, comprising the following steps:
Step 1: the prefabricated tubular pile is squeezed into the designated position of ground；
Step 2: the prefabricated cushion cap is placed in the designated position of the top of the prefabricated tubular pile；
Step 3: being inserted into the spacer bar in the reinforced hole of the periphery duct and pass through the nut；
Step 4: the perfusion plain concrete in the central duct is until central duct is filled；Height is poured into the duct of periphery
Performance epoxy resin mortar is until the groove is filled.
Further, in the step 3, the top of the spacer bar is provided with helicitic texture, and the spacer bar is worn
It the reinforced hole and is fixed out by nut.
Reinforced hole spacer bar is the utility model has the beneficial effects that: pass through spacer bar, fixed steel bars and positioning steel
Prefabricated cushion cap and prefabricated tubular pile can be attached by mechanical structure during the installation process, facilitate fixation by the setting of plate, section
The time of construction has been saved, while having increased the safety in work progress；Hollow weathering steel is effectively strengthened by fixed steel bars
Both contacting between sleeve and prefabricated tubular pile, while the connection between prefabricated tubular pile and plain concrete is effectively strengthened, make
It connects stronger.
Detailed description of the invention
Fig. 1 is a kind of positive view of the structure of pile foundation of bridge pier of specific embodiment of the present invention；
Fig. 2 is a kind of top view of the prefabricated cushion cap of the structure of pile foundation of bridge pier of specific embodiment of the present invention；
Fig. 3 is partial enlarged view at the A of specific embodiment of the present invention Fig. 1；
Fig. 4 is partial enlarged view at the B of specific embodiment of the present invention Fig. 1；
Fig. 5 is partial enlarged view at the C of specific embodiment of the present invention Fig. 2；
Label declaration:
1, prefabricated cushion cap；11, central duct；12, periphery duct；13, fixing steel plate；131, reinforced hole；132, grout hole；
14, spacer bar；15, groove；
2, prefabricated tubular pile；21, tubular pole lengthways main steel bar；22, hollow weather-proof steel bushing；23, fixed steel bars；24, anchorage；
3, plain concrete；
4, high-performance epoxy resin mortar.
Specific embodiment
For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is:, can by the setting of spacer bar, fixed steel bars and fixing steel plate
Prefabricated cushion cap and prefabricated tubular pile are attached by mechanical structure during the installation process, facilitate fixation, save construction when
Between, while increasing the safety in work progress；Hollow weather-proof steel bushing and prefabricated pipe are effectively strengthened by fixed steel bars
Connection between stake, while the connection between prefabricated tubular pile and plain concrete is effectively strengthened, keep the connection of the two stronger.
It please refers to shown in Fig. 1-Fig. 3, a kind of structure of pile foundation of bridge pier, including prefabricated cushion cap 1 and prefabricated tubular pile 2；It is described pre-
Cushion cap 1 processed is set to the top of the prefabricated tubular pile 2；
Central duct 11 and periphery duct 12 are offered on the prefabricated cushion cap 1, the periphery duct 12 is surround in described
The setting of heart duct 11, the central duct 11 and the periphery duct 12 are set to the top of 2 pipeline of prefabricated tubular pile, described
It is parallel to each other between central duct 11 and the axis in the periphery duct 12；
It is provided with fixing steel plate 13 at the upper opening in the periphery duct 12, is provided with reinforcing bar on the fixing steel plate 13
Hole 131, the reinforced hole 131 are set to above the duct in the periphery duct 12；Positioning is provided in the periphery duct 12
Reinforcing bar 14, the spacer bar 14 protrude into the pipeline of the prefabricated tubular pile 2, and the top of the spacer bar 14 is fixed on described
On fixing steel plate 13.
Seen from the above description, a kind of beneficial effect of the structure of above-mentioned pile foundation of bridge pier is: by spacer bar 14,
The setting of fixed steel bars 23 and fixing steel plate 13 can pass through mechanical structure for prefabricated cushion cap 1 and prefabricated pipe during the installation process
Stake 2 is attached, and is facilitated fixation, is saved the time of construction, while increasing the safety in work progress；Pass through fixed steel
Muscle 23 effectively strengthens contacting between hollow weather-proof steel bushing 22 and prefabricated tubular pile 2, at the same effectively strengthen prefabricated tubular pile 2 with
Connection between plain concrete 3 keeps the connection of the two stronger.
Further, grout hole 132 is additionally provided on the fixing steel plate 13, the grout hole 132 is placed in the periphery
Above the duct in duct 12.
Seen from the above description, the setting of grout hole 132 facilitates pouring into for slurry, further increases the effect of construction
Rate.
Further, tubular pole lengthways main steel bar 21 is provided in the side wall of the prefabricated tubular pile 2.
Seen from the above description, by the way that tubular pole lengthways main steel bar 21 is arranged in the prefabricated tubular pile 2, prefabricated tubular pile is increased
2 structural strength, the shear resistance being especially horizontally oriented, to increase the stability of structure entirety.
Further, the top of the prefabricated tubular pile 2 is arranged with hollow weather-proof steel bushing 22.
Seen from the above description, by the setting of hollow weather-proof steel bushing 22, it can transmit, disperse load, dispersion will be pre-
The impact force received when ground is squeezed into tubulation stake 2, and top when squeezing into ground of prefabricated tubular pile 2 is prevented to be destroyed.
Further, the prefabricated tubular pile 2 further includes fixed steel bars 23, and the length of the fixed steel bars 23 is less than described pre-
2 radius of tubulation stake, one end of the fixed steel bars 23 traverse into the hollow weather-proof steel bushing 22 and the prefabricated tubular pile 2,
The other end stretches out the hollow weather-proof steel bushing 22 and is fixed by anchorage 24.
Seen from the above description, by the setting of fixed steel bars 23, it is capable of fixing hollow weather-proof steel bushing 22, is reinforced hollow
Connection between weather-proof steel bushing 22 and prefabricated tubular pile 2, to enhance the energy of the hollow transmitting of weather-proof steel bushing 22, dispersion load
Power, while the connection between prefabricated tubular pile 2 and plain concrete 3 can be enhanced after pouring into plain concrete 3.
Further, the top of the spacer bar 14 is provided with helicitic texture, and the spacer bar 14 is pierced by the steel
Muscle hole 131 is simultaneously fixed by nut.
Seen from the above description, spacer bar 14 conveniently can be connected to by fixing steel plate by the setting of nut
On 13, the efficiency of construction is increased.
Further, groove 15, the central duct 11 and the periphery are additionally provided on the top surface of the prefabricated cushion cap 1
Duct 12 is set in the groove 15.
Further, high-performance epoxy resin mortar 4 is filled in the periphery duct 12 and the groove 15；The prefabricated pipe
Plain concrete 3 is filled in the pipeline and central duct 11 of stake 2.
Seen from the above description, the setting of groove 15 can by pour 4 center seal duct 11 of high-performance epoxy resin mortar,
Periphery duct 12 and 14 top of spacer bar and fixing steel plate 13, prevent spacer bar 14 and 13 rust corrosion of fixing steel plate with
And central duct 11 and 12 edge of periphery duct intake；A relatively firm closing is capable of forming by high-performance epoxy resin mortar 4
Encapsulated by structures spacer bar 14 and fixing steel plate 13, avoid the spacer bar being wrapped in epoxy resin mortar 14 and fixing steel plate 13
It touches moisture and air and is corroded；The relatively firm stabilization of the structure of plain concrete 3, and cost is relatively low, is suitable as bridge pier
The packing material of pile foundation main body.
Embodiment one
A kind of structure of pile foundation of bridge pier, including prefabricated cushion cap 1 and prefabricated tubular pile 2；The prefabricated cushion cap 1 is set to described pre-
The top of tubulation stake 2；Central duct 11 and periphery duct 12 are offered on the prefabricated cushion cap 1, the periphery duct 12 is surround
The central duct 11 is arranged, and the central duct 11 and the periphery duct 12 are set to the upper of 2 pipeline of prefabricated tubular pile
Side, is parallel to each other between the central duct 11 and the axis in the periphery duct 12；The upper opening in the periphery duct 12
Place is provided with fixing steel plate 13, and reinforced hole 131 is provided on the fixing steel plate 13, and the reinforced hole 131 is set to the week
Above the duct in lateral opening road 12；Spacer bar 14 is provided in the periphery duct 12, the spacer bar 14 protrudes into described pre-
In the pipeline of tubulation stake 2, the top of the spacer bar 14 is fixed on the fixing steel plate 13；On the fixing steel plate 13 also
It is provided with grout hole 132, the grout hole 132 is placed in above the duct in the periphery duct 12；The side wall of the prefabricated tubular pile 2
Inside it is provided with tubular pole lengthways main steel bar 21；The top of the prefabricated tubular pile 2 is arranged with hollow weather-proof steel bushing 22；The prefabricated tubular pile
2 further include fixed steel bars 23, and the length of the fixed steel bars 23 is less than 2 radius of prefabricated tubular pile, the fixed steel bars 23
One end traverses into the hollow weather-proof steel bushing 22 and the prefabricated tubular pile 2, and the other end stretches out the hollow weather-proof steel bushing
22 and fixed by anchorage 24；The top of the spacer bar 14 is provided with helicitic texture, and the spacer bar 14 is pierced by described
Reinforced hole 131 is simultaneously fixed by nut；Groove 15,11 He of central duct are additionally provided on the top surface of the prefabricated cushion cap 1
The periphery duct 12 is set in the groove 15；High-performance epoxy is filled in the periphery duct 12 and the groove 15
Mortar 4；Plain concrete 3 is filled in the pipeline and central duct 11 of the prefabricated tubular pile 2.
Embodiment two
A kind of construction method of above-mentioned pile foundation of bridge pier, comprising the following steps:
Step 1: the prefabricated tubular pile 2 is squeezed into the designated position of ground；
Step 2: the prefabricated cushion cap 1 is placed in the designated position of the top of the prefabricated tubular pile 2；
Step 3: being inserted into the spacer bar 14 in 12 reinforced hole 131 of periphery duct and pass through the nut；
Step 4: the perfusion plain concrete 3 in the central duct 11 is until central duct 11 is filled；Toward periphery duct 12
High-performance epoxy resin mortar 4 is inside poured into until the groove 15 is filled.
Further, in the step 3, the top of the spacer bar 14 is provided with helicitic texture, the spacer bar
14 are pierced by the reinforced hole 131 and are fixed by nut.
In conclusion a kind of structure of pile foundation of bridge pier provided by the utility model, by spacer bar, fixed steel bars and determines
Prefabricated cushion cap and prefabricated tubular pile, can be attached by mechanical structure by the setting of position steel plate during the installation process, convenient solid
It is fixed, the time of construction is saved, while increasing the safety in work progress；It is effectively strengthened by fixed steel bars hollow resistance to
Contacting between steel bushing and prefabricated tubular pile is waited, while effectively strengthening the connection between prefabricated tubular pile and plain concrete, makes two
The connection of person is stronger；Seen from the above description, the setting of grout hole facilitates pouring into for slurry, further increases construction
Efficiency；By the way that tubular pole lengthways main steel bar is arranged in the prefabricated tubular pile, the structural strength of prefabricated tubular pile, especially water are increased
Square to shear resistance, to increase the stability of structure entirety；Pass through the setting of hollow weather-proof steel bushing, Neng Gouchuan
It passs, disperse load, the impact force that dispersion receives when prefabricated tubular pile is squeezed into ground prevents prefabricated tubular pile when squeezing into ground
Top is destroyed；By the setting of fixed steel bars, it is capable of fixing hollow weather-proof steel bushing, reinforces hollow weather-proof steel bushing and prefabricated
Connection between tubular pole to enhance the ability of hollow weather-proof steel bushing transmitting, dispersion load, while can pour into plain coagulation
Enhance the connection between prefabricated tubular pile and plain concrete after soil；Conveniently spacer bar can be connected by the setting of nut
It is connected on fixing steel plate, increases the efficiency of construction；The setting of groove can be by pouring high-performance epoxy resin mortar center seal
Duct, periphery duct and spacer bar top and fixing steel plate, prevent spacer bar and fixing steel plate rust corrosion and in
Heart duct and the water inlet of periphery porthole edge edge；A relatively firm closed encapsulated by structures is capable of forming by high-performance epoxy resin mortar
Spacer bar and fixing steel plate, avoid the spacer bar being wrapped in epoxy resin mortar and fixing steel plate touch moisture and air and
It is corroded；The relatively firm stabilization of the structure of plain concrete, and cost is relatively low, is suitable as the packing material of pile foundation of bridge pier main body.
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
Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck
Domain is also included in the patent protection scope of the utility model.
Claims (8)
1. a kind of structure of pile foundation of bridge pier, which is characterized in that including prefabricated cushion cap and prefabricated tubular pile；The prefabricated cushion cap is set to
The top of the prefabricated tubular pile；
Central duct and periphery duct are offered on the prefabricated cushion cap, the periphery duct is arranged around the central duct,
The central duct and the periphery duct are set to the top of the prefabricated tubular pile pipeline, the central duct and the periphery
It is parallel to each other between the axis in duct；
It is provided with fixing steel plate at the upper opening in the periphery duct, reinforced hole, the steel are provided on the fixing steel plate
Muscle hole is set to above the duct in the periphery duct；Spacer bar is provided in the periphery duct, the spacer bar is stretched
In the pipeline for entering the prefabricated tubular pile, the top of the spacer bar is fixed on the fixing steel plate.
2. the structure of pile foundation of bridge pier according to claim 1, which is characterized in that be additionally provided with grouting on the fixing steel plate
Hole, the grout hole are placed in above the duct in the periphery duct.
3. the structure of pile foundation of bridge pier according to claim 1, which is characterized in that be provided in the side wall of the prefabricated tubular pile
Tubular pole lengthways main steel bar.
4. the structure of pile foundation of bridge pier according to claim 1, which is characterized in that the top of the prefabricated tubular pile is arranged free
The weather-proof steel bushing of the heart.
5. the structure of pile foundation of bridge pier according to claim 4, which is characterized in that the prefabricated tubular pile further includes fixed steel
The length of muscle, the fixed steel bars is less than the prefabricated tubular pile radius, and one end of the fixed steel bars traverses into described hollow resistance to
It waits in steel bushing and the prefabricated tubular pile, the other end stretches out the hollow weather-proof steel bushing and fixed by anchorage.
6. the structure of pile foundation of bridge pier according to claim 1, which is characterized in that the top of the spacer bar is provided with spiral shell
Line structure, the spacer bar are pierced by the reinforced hole and are fixed by nut.
7. the structure of pile foundation of bridge pier according to claim 1, which is characterized in that also set up on the top surface of the prefabricated cushion cap
Fluted, the central duct and the periphery duct are arranged in the groove.
8. the structure of pile foundation of bridge pier according to claim 7, which is characterized in that filled out in the periphery duct and the groove
Filled with high-performance epoxy resin mortar；Plain concrete is filled in the pipeline and central duct of the prefabricated tubular pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305147.1U CN209144853U (en) | 2018-08-14 | 2018-08-14 | A kind of structure of pile foundation of bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305147.1U CN209144853U (en) | 2018-08-14 | 2018-08-14 | A kind of structure of pile foundation of bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209144853U true CN209144853U (en) | 2019-07-23 |
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ID=67265571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821305147.1U Active CN209144853U (en) | 2018-08-14 | 2018-08-14 | A kind of structure of pile foundation of bridge pier |
Country Status (1)
| Country | Link |
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| CN (1) | CN209144853U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952453A (en) * | 2019-11-25 | 2020-04-03 | 通号建设集团有限公司 | Construction method of abutment structure |
| CN111254815A (en) * | 2020-03-04 | 2020-06-09 | 东南大学 | Self-resetting prefabricated pier structure for single-pile foundation and assembling method thereof |
-
2018
- 2018-08-14 CN CN201821305147.1U patent/CN209144853U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110952453A (en) * | 2019-11-25 | 2020-04-03 | 通号建设集团有限公司 | Construction method of abutment structure |
| CN110952453B (en) * | 2019-11-25 | 2021-11-12 | 通号建设集团有限公司 | Construction method of abutment structure |
| CN111254815A (en) * | 2020-03-04 | 2020-06-09 | 东南大学 | Self-resetting prefabricated pier structure for single-pile foundation and assembling method thereof |
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