CN206346183U - A kind of reducing precast concrete hollow pile and foundation structure of building - Google Patents
A kind of reducing precast concrete hollow pile and foundation structure of building Download PDFInfo
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- CN206346183U CN206346183U CN201620763488.8U CN201620763488U CN206346183U CN 206346183 U CN206346183 U CN 206346183U CN 201620763488 U CN201620763488 U CN 201620763488U CN 206346183 U CN206346183 U CN 206346183U
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Abstract
The utility model discloses a kind of reducing precast concrete hollow pile and foundation structure of building, the reducing precast concrete hollow pile includes reinforced concrete pile body and is located at least in the metal end plate of reinforced concrete pile body one end, the pile body includes concrete main body and the steel reinforcement cage being arranged in concrete main body, and the steel reinforcement cage includes the cage bar set along pile body length direction and the stirrup set around cage bar；The central through hole at pile body two ends is provided through in the pile body, pile body is arranged at intervals with the weight reducing section being inwardly indented at two with upper section surrounding in the longitudinal direction.The hollow pile bearing capacity of this reducing precast concrete is strong, and pile body periphery is difficult because of breakage of colliding with, and is easy to carry.
Description
Technical field
The utility model is related to civil construction project field, more particularly to a kind of reducing precast concrete hollow pile and builds
Build foundation structure.
Background technology
With the development of concrete technology, the technology of concrete tubular pile also reaches its maturity, except applied to industry, civil buildings
Outside, it is also widely used for each field such as bridge, harbour, railway or hydraulic engineering.
Bamboo joint pile is one kind of precast concrete pile, and the axially spaced distribution of pile tube body surfaces of bamboo joint pile is outwardly convex
The reinforcing ring gone out, the bearing capacity of pile tube is increased using the friction of reinforcing ring and soil.There is convex just because of bamboo joint pile
The reinforcing ring gone out, in handling process, reinforcing ring easily collides with the external world, and the length of the reinforcing ring of existing bamboo joint pile compared with
It is short, therefore easily knocked against hard, so as to have impact on the overall construction intensity of pile body.
Utility model content
The technical problems to be solved in the utility model is existing for solving there is provided a kind of reducing precast concrete hollow pile
Bamboo joint pile reinforcing ring is easily knocked against hard, the problem of influence is used.
What the utility model was realized in：
A kind of reducing precast concrete hollow pile, including reinforced concrete pile body and it is located at least in reinforced concrete pile body
The metal end plate of one end, the pile body includes concrete main body and the steel reinforcement cage being arranged in concrete main body, the steel reinforcement cage
Including the cage bar set along pile body length direction and the stirrup set around cage bar；Pile body two is provided through in the pile body
The central through hole at end, pile body is arranged at intervals with the weight reducing section being inwardly indented at two with upper section surrounding in the longitudinal direction.
Further, the peripheral cross-section of the adjacent reinforced concrete bodies is square or triangle.
Further, one end end face of the reinforced concrete pile body is provided with the metal end plate, and the other end is connected with
The pile top of taper.
Further, the two ends of the reinforced concrete pile body are provided with the metal end plate.
Further, the pile body termination provided with the metal end plate is provided with pile protection hoop.
Further, the stirrup reinforcement density at the pile body two ends is more than the stirrup reinforcement density in the middle part of pile body.
Further, the length of the weight reducing section is equal to the gap length between two adjacent weight reducing sections.
Further, main ribs are deformed bar, and the stirrup is hot rolling wire rod.
Further, more than 8 cage bars are distributed as on the pile body cross section.
In order to solve the above technical problems, the utility model provides another technical scheme：
A kind of foundation structure of building, the pressure-bearing foundation structure of building includes two or more concrete-pile, the concrete
Stake is above-described reducing precast concrete hollow pile, and the reducing precast concrete hollow pile upper and lower ends head and the tail are connected.
The utility model has the following advantages that：Existing concrete bamboo joint pile is different from using outwardly reinforcing ring knot
Structure, breakage of easily colliding with, the utility model reducing precast concrete hollow pile be arranged at intervals on pile body at two more than be inwardly indented
Weight reducing section so that not only effectively using inter-pile soil soil compaction effect improve pile foundation bearing capacity, while pile body periphery be difficult because
Collide with breakage, be easy to carry.
Brief description of the drawings
Fig. 1 a are the structural representation of reducing precast concrete hollow pile in the utility model embodiment；
Fig. 1 b are the structural representation of reducing precast concrete hollow pile in the utility model embodiment；
Fig. 2 is the arrangement of reinforcement schematic diagram of reducing precast concrete hollow pile in the utility model embodiment；
Fig. 3 b are the arrangement of reinforcement schematic diagram in section at 1-1 in Fig. 2；
Fig. 4 is the two reducing precast concrete hollow piles schematic diagram that head and the tail are connected up and down；
Fig. 5 a are the stress diagram of reducing precast concrete hollow pile pile driving process；
Fig. 5 b do stress diagram when pressure bearing pile is used for reducing precast concrete hollow pile；
Fig. 5 c do stress diagram when uplift pile is used for reducing precast concrete hollow pile；
Fig. 6 is the structural representation of foundation structure of building in utility model embodiment.
Label declaration：
1st, precast concrete hollow pile；2nd, metal end plate；3rd, pile protection hoop；4th, pile top；11st, weight reducing section；
12nd, steel reinforcement cage；13rd, through hole；110th, concrete main body；121st, cage bar；
122nd, stirrup.
Embodiment
To describe technology contents of the present utility model, construction feature, the objects and the effects in detail, below in conjunction with implementation
Mode simultaneously coordinates accompanying drawing to be explained in detail.
Fig. 1 a to Fig. 5 c are referred to, the utility model embodiment provides a kind of reducing precast concrete hollow pile, described
Concrete hollow pile processed is one kind of prefabricated pile.Prefabricated pile, is various materials, the various forms being made in factory or job site
Stake (such as timber, concrete square pile, prestressed concrete pipe pile, piling bar), stake is squeezed into sinking apparatus, be pressed into or shaken into
In soil.The realm of building construction is mainly concrete precast pile and the major class of piling bar two using more prefabricated pile.
Reducing precast concrete hollow pile 1 described in the present embodiment include reinforced concrete pile body and be located at least in reinforcing bar mix
The metal end plate 2 of solidifying soil pile body one end, the pile body includes concrete main body 110 and the steel reinforcement cage being arranged in concrete main body
12, the steel reinforcement cage 12 includes the cage bar 121 set along pile body length direction and the stirrup 122 set around cage bar 121；Institute
The central through hole 13 that pile body two ends are provided through in pile body is stated, pile body is arranged at intervals with two with upper section in the longitudinal direction
The weight reducing section 11 that surrounding is inwardly indented.
The weight reducing section is for the pile body section that on pile body length direction, periphery Wei Xiang centers are retracted.At this
In embodiment, weight reducing section is the length of each weight reducing section formed by pile body cross-sectional circumference to center retraction 10mm~30mm
Degree is not less than 300mm, and the spacing formed in the range of full pile length between more than two sections sections of reducing weight, two adjacent weight reducing sections is
850mm。
In other embodiments, the spacing between the retraction distance of the weight reducing section and two adjacent weight reducing sections can be according to reality
Border situation is adjusted correspondingly, but the spacing between two weight reducing sections should not be too small.It is preferred that, the length of the weight reducing section is not small
In 300mm, and the spacing between two weight reducing sections is not less than 300mm.
As shown in Figure 1a, the termination at the two ends of reducing precast concrete hollow pile 1 is flat, in the armored concrete
The two ends of pile body are provided with the metal end plate 2.
As shown in Figure 1 b, one end termination of the reducing precast concrete hollow pile 1 is flat, is provided with metal end plate 2,
And the other end of pile body tapers the pile top 4 to form taper to middle part.
The reducing precast concrete hollow pile 1 can be used as pressure bearing pile with uplift pile, when in use, can be made with single
With more than two hollow piles can also from beginning to end being connected up and down and used.Pile body shown in single preferred Fig. 1 b when using.Such as
It is the schematic diagram of two concrete hollow piles 1 connection shown in Fig. 4, wherein, the head and the tail connection in longitudinal direction about 1 of two concrete hollow piles, even
When connecing, the lower end metal end plate 3 of upper hollow pile is docked with the upper end metal end plate of upper hollow pile, and is fixed by modes such as welding
Together.When many piles are used in series, for the ease of piling, a most beneath pile uses the pile body shown in Fig. 1 b.
The annular thin rib of the relatively conventional ring square pile of the present embodiment reducing precast concrete hollow pile is put in transport and heap
It is more solid firm, it is difficult destruction of colliding with；Relatively conventional hollow square pile is retracted on section, can save concrete amount；Reducing
Square pile is not required to set suspension ring, can be by hoist cable colligation on retraction waist during transporting and hoisting.
The reducing precast concrete hollow pile is used available for pressure bearing pile with uplift pile, refers to Fig. 5 a to Fig. 5 c, wherein
" → ", represents the active force of outer bound pair pile body, as shown in Figure 5 a, and reducing precast concrete hollow pile sinks in first pile driving process
Stake is acted only on the external diameter of pile body with soil body friction, and the suffered frictional resistance of weight reducing section of retraction can be neglected, relatively conventional
The resistance produced during ring square sunk pile is small, it is easier to pile sinking, and survivable.As shown in Fig. 5 b and Fig. 5 c, with heavy
Stake increasing number, has sunk to stake in place under inter-pile soil extruding, and soil around pile bonds active force to pile body offer sensing pile body.
Treat that Superstructure Construction is completed, after ground load loading, stake building structure sedimentation convergence is stable, and inter-pile soil body dense extrusion also becomes
Near stable, when structure pile body bears active force up or down, the inter-pile soil of dense extrusion bonds reducing square pile, in stake contracting
Enter generation at the waist certain vertical resistance in stake end and pile body side friction resistance, effectively improve bearing capacity of pile foundation.
As shown in Figure 3 b, in the present embodiment, the cross section of the periphery of reducing precast concrete hollow pile 1 it is square, and
Corner uses circular arc chamfering process.The number of cage bar 121 in the steel reinforcement cage 12 is 8, and cage bar 121 is along square cross section
Four sides are set, and the periphery that stirrup 122 spirals about cage bar 121 is set.
As shown in Figure 2, it is preferred that in the present embodiment, it is to change in the reinforcement density of pile body length direction stirrup 122
, it is arrangement of reinforcement non-encrypted area in the middle part of arrangement of reinforcement encrypted area, pile body to be at the head and the tail two ends of pile body, wherein, the stirrup of arrangement of reinforcement encrypted area
The winding density that reinforcement density is greater than non-encrypted area, the i.e. stirrup of arrangement of reinforcement encrypted area is greater than non-encrypted area.Stirrup is using non-
Uniform reinforcement mode, improves the structural strength at pile body two ends, the problem of pile body two ends are damaged when can reduce piling.
And in some other embodiments, the stirrup can also use uniform reinforcement mode, i.e., will pile body length side
The winding density of upward stirrup 122 is uniform constant.
It is preferred that, in the present embodiment, main ribs 121 are deformed bar, and the stirrup 122 is hot rolling wire rod.
And in some other embodiments, the stirrup 122 can also be steel strand wires or spiral.
In embodiment, the cross section of the pile body periphery is square, and in other embodiments, the reinforced concrete
The peripheral cross-section of native main body can be with, circular, triangle or regular polygon etc..
As illustrated in figs. 1A and ib, it is the structural strength at raising pile body two ends, prevents termination damaged, in the stake shown in Fig. 1 a
The two ends of body are provided with pile protection hoop 3, and the upper end of the pile body shown in Fig. 1 b is provided with pile protection hoop 3.
Reducing precast concrete hollow pile described in the various embodiments described above can apply to foundation structure of building, for example：
1st, pressure bearing pile is built, pressure bearing pile is also known as vertical pressure resisting pile, current most of building pile foundations are compressive pile,
2nd, building uplift pile, also referred to as anti-floating pile, refer to when architectural engineering underground structure is if less than Soil Surrounding
During the part of water level, in order to offset the stake that soil reclaimed water is beaten the buoyancy that structure is produced.
As shown in fig. 6, the foundation structure of building include be arranged at construction bottom, in depth under reducing precast concrete
Hollow pile 1, the reducing precast concrete hollow pile is the reducing precast concrete hollow pile described in the various embodiments described above, reducing
The quantity of precast concrete hollow pile 1 is in the vertical direction head and the tail phase between more than 2, reducing precast concrete hollow pile 1
Even.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent shapes or Structural Transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other
Related technical field, is similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of reducing precast concrete hollow pile, it is characterised in that including reinforced concrete pile body and be located at least in reinforcing bar
The metal end plate of concrete pile body one end, the pile body includes concrete main body and the steel reinforcement cage being arranged in concrete main body,
The steel reinforcement cage includes the cage bar set along pile body length direction and the stirrup set around cage bar；It is provided with the pile body
Central through hole through pile body two ends, pile body be arranged at intervals with the longitudinal direction at two with upper section surrounding be inwardly indented it is thin
Figure.
2. reducing precast concrete hollow pile according to claim 1, it is characterised in that the adjacent reinforced concrete bodies
Peripheral cross-section is square or triangle.
3. reducing precast concrete hollow pile according to claim 1, it is characterised in that the reinforced concrete pile body
One end end face is provided with the metal end plate, and the other end is connected with the pile top of taper.
4. reducing precast concrete hollow pile according to claim 1, it is characterised in that the reinforced concrete pile body
Two ends are provided with the metal end plate.
5. the reducing precast concrete hollow pile according to claim 3 or 4, it is characterised in that provided with the metal end plate
Pile body termination be provided with pile protection hoop.
6. reducing precast concrete hollow pile according to claim 1, it is characterised in that the stirrup at the pile body two ends is matched somebody with somebody
Muscle density is more than the stirrup reinforcement density in the middle part of pile body.
7. reducing precast concrete hollow pile according to claim 1, it is characterised in that the length of the weight reducing section is equal to
Gap length between two adjacent weight reducing sections.
8. reducing precast concrete hollow pile according to claim 1, it is characterised in that main ribs are prestress steel
Muscle, the stirrup is hot rolling wire rod.
9. reducing precast concrete hollow pile according to claim 1, it is characterised in that be distributed on the pile body cross section
For more than 8 cage bars.
10. a kind of foundation structure of building, it is characterised in that pressure-bearing foundation structure of building includes two or more concrete-pile, described
Concrete-pile is any described reducing precast concrete hollow pile of claim 1 to 9, the reducing precast concrete hollow pile
Upper and lower ends head and the tail are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620763488.8U CN206346183U (en) | 2016-07-20 | 2016-07-20 | A kind of reducing precast concrete hollow pile and foundation structure of building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620763488.8U CN206346183U (en) | 2016-07-20 | 2016-07-20 | A kind of reducing precast concrete hollow pile and foundation structure of building |
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| Publication Number | Publication Date |
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| CN206346183U true CN206346183U (en) | 2017-07-21 |
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| CN201620763488.8U Active CN206346183U (en) | 2016-07-20 | 2016-07-20 | A kind of reducing precast concrete hollow pile and foundation structure of building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914930A (en) * | 2018-09-13 | 2018-11-30 | 健研检测集团有限公司 | A kind of prefabricated non-uniform pile and its construction method |
| CN110080272A (en) * | 2019-04-25 | 2019-08-02 | 上海交通大学 | Offshore wind farm single-pile foundation and offshore wind farm device suitable for greater coasting area |
| CN115162324A (en) * | 2022-09-05 | 2022-10-11 | 中交第三航务工程局有限公司江苏分公司 | Precast pile structure suitable for multiple soil layers and static pile pressing construction method thereof |
-
2016
- 2016-07-20 CN CN201620763488.8U patent/CN206346183U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108914930A (en) * | 2018-09-13 | 2018-11-30 | 健研检测集团有限公司 | A kind of prefabricated non-uniform pile and its construction method |
| CN110080272A (en) * | 2019-04-25 | 2019-08-02 | 上海交通大学 | Offshore wind farm single-pile foundation and offshore wind farm device suitable for greater coasting area |
| CN115162324A (en) * | 2022-09-05 | 2022-10-11 | 中交第三航务工程局有限公司江苏分公司 | Precast pile structure suitable for multiple soil layers and static pile pressing construction method thereof |
| CN115162324B (en) * | 2022-09-05 | 2022-11-25 | 中交第三航务工程局有限公司江苏分公司 | Precast pile structure suitable for multiple soil layers and static pile pressing construction method thereof |
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