CN203129126U - Uneven reinforcing-bar prefabricated supporting pile - Google Patents
Uneven reinforcing-bar prefabricated supporting pile Download PDFInfo
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- CN203129126U CN203129126U CN 201220696586 CN201220696586U CN203129126U CN 203129126 U CN203129126 U CN 203129126U CN 201220696586 CN201220696586 CN 201220696586 CN 201220696586 U CN201220696586 U CN 201220696586U CN 203129126 U CN203129126 U CN 203129126U
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Abstract
The utility model discloses an uneven reinforcing-bar prefabricated supporting pile which comprises a concrete pile body and a reinforcement cage which is arranged in concrete in the axial direction of the pile body. The reinforcement cage comprises a plurality of axial parallelly-arranged main reinforcing steel bars parallel to the axis of the pile body. The number of the reinforcing bars on at least one side of the uneven reinforcing-bar prefabricated supporting pile is larger than that of other sides. The center of the uneven reinforcing-bar prefabricated supporting pile and the center of a pile body through hole are eccentrically arranged. Under the situation where the section average reinforcing-bar rate is equal, the uneven reinforcing-bar prefabricated supporting pile can improve section flexural capacity. When the section flexural capacity is equal, the uneven reinforcing-bar prefabricated supporting pile can save the using number of the reinforcing steel bars.
Description
Technical field
The utility model belongs to building field, relates to improvement and manufacture method and the moulding form of a kind of foundation pile shape and structure in the building field, specifically, is a kind of prefabricated soldier pile of inhomogeneous arrangement of reinforcement that is applied to building foundation pit.
Background technology
Existing building foundation pit supporting stake generally is cylindrical shape, is to adopt the method for cast in situs to make.Specifically be earlier to carry out the prebored hole operation at the periphery of the building foundation pit of needs excavation to drill through a hole, the circular reinforcing cage that to roll again hangs onto in the hole and centering, at last concrete is injected the stake hole, concrete reaches the excavation operation that the intensity after coagulation can carry out building foundation pit fully in the stake hole by the time.
Soldier pile mainly carries lateral thrust, the soldier pile that existing cast in situs method is made, the rounded mode of its cross section reinforcing bar is arranged very not science, simultaneously, owing to be cast in situs, reinforcing cage can't carry out autofrettage, action of steel bars fails to be fully played, and causes a large amount of reinforcing bars and concrete to be wasted, in the process that soldier pile is built at the scene, fabrication cycle is long, produce a large amount of mud, contaminated environment not only, and, the disposal cost of mud is higher, and the whole cost of construction work is improved greatly.
In addition, it is bigger that the preformed pile that is used for pattern foundation pit supporting structure generally bears unidirectional lateral force, and existing symmetrical configuration, the uniform preformed pile of arrangement of reinforcement, every performance indications all are identical on the position of symmetry, often have the phenomenon of waste of raw materials such as reinforcing bar and concrete when being used for pattern foundation pit supporting structure.
The utility model content
Technical problem to be solved in the utility model is to remedy the deficiencies in the prior art, provides that a kind of side direction bearing capacity is strong, the cross section is subjected to the good prefabricated soldier pile of inhomogeneous arrangement of reinforcement that is used for building foundation pit of curved strong, the horizontal bending resistance shear behavior of bearing capacity.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
The prefabricated soldier pile of inhomogeneous arrangement of reinforcement, comprise the concrete pile body and along the reinforcing cage of axial arrangement in described concrete of pile body, described reinforcing cage comprises some axially parallel settings and the main reinforcement parallel with the pile body axis, it is characterized in that the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement has the arrangement of reinforcement quantity of a side at least more than the arrangement of reinforcement quantity of other side.
In a preferred embodiment of the present utility model, the both sides arrangement of reinforcement quantity that the side that arrangement of reinforcement quantity is many is adjacent is identical or inequality.
In a preferred embodiment of the present utility model, the wall unevenness of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement etc.
In a preferred embodiment of the present utility model, in the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement, dispose the pile body through hole that axially runs through the prefabricated soldier pile of whole inhomogeneous arrangement of reinforcement.
In a preferred embodiment of the present utility model, the center of described pile body through hole becomes eccentric and arranges with the center of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
In a preferred embodiment of the present utility model, the middle mind-set of described pile body through hole departs from away from the many side directions of arrangement of reinforcement.
In a preferred embodiment of the present utility model, the many sides of the center of described pile body through hole deflection arrangement of reinforcement.
In a preferred embodiment of the present utility model, the center of described pile body through hole and the line at the center of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement are crossed the center of central point and the opposite side relative with the many side of arrangement of reinforcement of the many sides of arrangement of reinforcement.
In a preferred embodiment of the present utility model, the side that described arrangement of reinforcement is many adopts multilayer interval reinforcement manner to be configured.
In a preferred embodiment of the present utility model, the cross section of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement is circular cross-section, polygonal cross-section or elliptic cross-section.
Described polygonal cross-section is triangular-section, square-section or square sectional.
In a preferred embodiment of the present utility model, when described polygonal cross-section is square-section or square sectional, its four corners are the circular arc corner, wherein a pair of relative circular arc corner is 90 °, arc radius 25～30mm, and another is 90 °, arc radius 5～10mm to relative circular arc corner.
In a preferred embodiment of the present utility model, described pile body through hole is circular hole, elliptical aperture or polygonal hole.
Described polygonal hole is tri-angle-holed, rectangular opening or square hole etc.
In a preferred embodiment of the present utility model, all do not dispose the metal end plate that is connected with reinforcing cage at the two ends of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
In a preferred embodiment of the present utility model, be provided with the metal end plate that is connected with reinforcing cage at least one end of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
In a preferred embodiment of the present utility model, described main reinforcement is all to be prestressing force master muscle or all to be the combination of non-prestressed main muscle or prestressing force master muscle and non-prestressed main muscle.
In a preferred embodiment of the present utility model, described metal end plate shape of cross section is identical with the shape of cross section of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
In a preferred embodiment of the present utility model, on described metal end plate, all dispose at least one through wires hole and a tension force hole corresponding to each the root main reinforcement in the reinforcing cage, wherein through wires hole and tension force hole connect.
When described main reinforcement was steel strand, described through wires hole was two, was symmetricly set on the both sides in described tension force hole and connected with described tension force hole.
The end of described steel strand is provided with screw thread, is connected with described metal end plate by nut.
In a preferred embodiment of the present utility model, in the end of described steel strand draw-in groove is set, snap in the described draw-in groove with anchoring element, carry out stretch-draw or be connected with metal end plate by described anchoring element.
When described main reinforcement was rod iron, described through wires hole was one, and this through wires hole and tension force hole connect.
Be connected by pier nose between described rod iron and the described metal end plate.
In a preferred embodiment of the present utility model, offer a through hole at described metal end plate, described through hole is concentric with described pile body through hole.
In a preferred embodiment of the present utility model, the through hole on the described metal end plate can be identical with described pile body shape of through holes, also can be inequality.
In a preferred embodiment of the present utility model, be provided with bevel for welding in the outer rim of described metal end plate, be convenient to the connection of stake.
Described reinforcing cage comprises that also shape in the shape of a spiral is welded on the stirrup on the main reinforcement continuously.
In a preferred embodiment of the present utility model, the pile body connecting portion of described metal end plate and the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement is provided with cuff.
The beneficial effects of the utility model are:
1, the prefabricated soldier pile of inhomogeneous arrangement of reinforcement of the present utility model can adopt existing production technology production fully, only needs to make punching block described in the utility model and gets final product with relevant stretch-draw utensil; The reinforcing cage former can be transformed according to initial pneumatic spot welding square pile reinforcing cage moulding welding machine.
2, the prefabricated soldier pile of inhomogeneous arrangement of reinforcement of the present utility model takes not wait the wall thickness design, guaranteeing to have effectively reduced the concrete wall thickness of resistance to compression face under the concrete wall thickness condition that tension face arrangement of reinforcement requires, has saved concrete.
3, compare with the preformed pile of uniform reinforcement, the prefabricated soldier pile of the inhomogeneous arrangement of reinforcement of the utility model under the identical situation of cross section balanced steel ratio, can improve the cross section and be subjected to curved bearing capacity; When being subjected to curved bearing capacity identical in the cross section, can energy-conservation amount of reinforcement.
4, for the foundation ditch soil blocking pile, the level of mainly bearing belongs to eccentric flexural member to (side direction) soil pressure load, adopts non-homogeneous arrangement of reinforcement obviously to be better than uniform reinforcement economically.
Description of drawings
Moulding form with square inhomogeneous arrangement of reinforcement preformed pile in the description of drawings is example, but this is not limited to scope of the present utility model, can also realize difform off-centre, inhomogeneous reinforcement structures such as pile tube by the shape that changes the grooved mould.Any under the prerequisite that does not break away from the utility model spirit and scope, the changes and improvements of doing all fall in the claimed scope of the utility model.
Figure 1 shows that the structural representation of the prefabricated soldier pile of the utility model embodiment 1 inhomogeneous arrangement of reinforcement.
Figure 2 shows that the cross sectional representation of Fig. 1.
Figure 3 shows that the structural representation of the prefabricated soldier pile of the utility model embodiment 2 inhomogeneous arrangements of reinforcement.
Figure 4 shows that the cross sectional representation of Fig. 3.
Figure 5 shows that the cross-sectional structure schematic diagram of the prefabricated soldier pile of the utility model embodiment 3 inhomogeneous arrangements of reinforcement.
The specific embodiment
Describe the utility model in detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1 and Fig. 2, the prefabricated soldier pile of inhomogeneous arrangement of reinforcement that provides among the figure comprises concrete pile body 10 and along the axial arrangement of concrete pile body 10 reinforcing cage 20 in concrete pile body 10 and the metal end plate 40 (can certainly only in an end setting of concrete pile body 10 or at the two ends of concrete pile body metal end plate be set all) that is arranged on concrete pile body 10 two ends.
Reinforcing cage 20 comprise some axially parallel settings and the main reinforcement 21 parallel with concrete pile body 10 axis and in the shape of a spiral shape be welded on stirrup 22 on the main reinforcement 21 continuously.Main reinforcement 21 can certainly be without the stretch-draw of prestressing force definite value through the stretch-draw of prestressing force definite value.Main reinforcement 21 is all to be prestressing force master muscle or all to be the combination of non-prestressed main muscle or prestressing force master muscle and non-prestressed main muscle.
As seen from Figure 2, the cross section of the concrete pile body 10 of the prefabricated soldier pile of inhomogeneous arrangement of reinforcement of this embodiment is the square-section, and corresponding whole concrete pile body 10 is the rectangle stake.
In preparation during reinforcing cage 20, the quantity of main reinforcement 21a that is positioned at the bottom 11 of concrete pile body 10 should be more than the quantity of the main reinforcement 21b of the top 12 that is positioned at concrete pile body 10.Like this under the identical situation of cross section balanced steel ratio, can improve the cross section and be subjected to curved bearing capacity, and when being subjected to curved bearing capacity identical in the cross section, can energy-conservation amount of reinforcement.
The main reinforcement 21a of the bottom 11 of concrete pile body 10 adopts two-layer interval mode to be configured, and the quantity of every layer of main reinforcement 21a is identical.
In addition in order to increase the prefabricated soldier pile of inhomogeneous arrangement of reinforcement of this embodiment, can also be at the right and left 13,14 of concrete pile body 1, namely aforesaid the 3rd side disposes main reinforcement 21c, the 21d that quantity is identical or quantity is inequality with the 4th side.
In order to eliminate the stress of concrete pile body 1, four corner 10a, 10b, 10c, 10d of concrete pile body 10 are the circular arc corner, wherein a pair of relative circular arc corner 10a, 10c are 90 °, arc radius 25～30mm, and another is 90 °, arc radius 5～10mm to relative circular arc corner 10b, 10d.
If be rod iron, then thick at the two ends of rod iron pier, form pier nose, be convenient to be connected with metal end plate 40.
In concrete pile body 10, be provided with and dispose the pile body through hole 15 that axially runs through the prefabricated soldier pile of whole inhomogeneous arrangement of reinforcement.Pile body through hole 15 is circular hole, can certainly be elliptical aperture, tri-angle-holed, rectangular opening or square hole.
The center of the center 15a of pile body through hole 15 and the prefabricated soldier pile of inhomogeneous arrangement of reinforcement, i.e. 16 one-tenth eccentric settings the in the center of concrete pile body 10.Especially the center 15a of pile body through hole 15 departs from (can certainly be partial to following 11) to top 12 directions of concrete pile body 10, and the line at the center 16 of the center 15a of pile body through hole 15 and concrete pile body 1 is crossed the center of bottom 11 of concrete pile body 10 and the central point of top 12.The wall thickness of the prefabricated soldier pile of inhomogeneous like this arrangement of reinforcement will occur unequal.
All dispose at least one through wires hole 43 and a tension force hole 44 corresponding to each the root main reinforcement in the reinforcing cage 20 on metal end plate 40, if main reinforcement is when being steel strand, through wires hole 43 is two, is symmetricly set on the both sides in tension force hole 44 and connects with tension force hole 44.If when main reinforcement was rod iron, then through wires hole 43 was one, this through wires hole 43 connects with tension force hole 44.Be provided with the cuff (not shown) at metal end plate 40 and concrete pile body 10 connecting portions at last.
Embodiment 2
The prefabricated supporting pile structure of inhomogeneous arrangement of reinforcement of this embodiment and the prefabricated supporting pile structure of inhomogeneous arrangement of reinforcement of embodiment 1 are basic identical, just main reinforcement arrangement of reinforcement quantity difference in the reinforcing cage 20.
Embodiment 3
The prefabricated supporting pile structure difference of the prefabricated supporting pile structure of inhomogeneous arrangement of reinforcement of this embodiment and the inhomogeneous arrangement of reinforcement of embodiment 1 is, the cross section of concrete pile body 10 is square, the center of the center 15a of pile body through hole 15 and the prefabricated soldier pile of inhomogeneous arrangement of reinforcement, namely the center 16 of concrete pile body 10 is concentric.The wall thickness equalization of the prefabricated soldier pile of inhomogeneous arrangement of reinforcement.All the other structures are identical with the prefabricated soldier pile of inhomogeneous arrangement of reinforcement of embodiment 1.
Claims (29)
1. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement, comprise the concrete pile body and along the reinforcing cage of axial arrangement in described concrete of pile body, described reinforcing cage comprises some axially parallel settings and the main reinforcement parallel with the pile body axis, it is characterized in that the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement has the arrangement of reinforcement quantity of a side at least more than the arrangement of reinforcement quantity of other side.
2. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, the both sides arrangement of reinforcement quantity that the side that arrangement of reinforcement quantity is many is adjacent is identical or inequality.
3. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, the wall unevenness of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement etc.
4. as the prefabricated soldier pile of the described inhomogeneous arrangement of reinforcement of each claim of claim 1 to 3, it is characterized in that, in the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement, dispose the pile body through hole that axially runs through the prefabricated soldier pile of whole inhomogeneous arrangement of reinforcement.
5. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 4 is characterized in that, the center of described pile body through hole becomes eccentric and arranges with the center of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
6. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 5 is characterized in that, the middle mind-set of described pile body through hole departs from away from the many side directions of arrangement of reinforcement.
7. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 5 is characterized in that, the many sides of center deflection arrangement of reinforcement of described pile body through hole.
8. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 6, it is characterized in that the center of described pile body through hole and the line at the center of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement are crossed the center of central point and the opposite side relative with the many side of arrangement of reinforcement of the many sides of arrangement of reinforcement.
9. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, the side that described arrangement of reinforcement is many adopts multilayer interval reinforcement manner to be configured.
10. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, the cross section of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement is circular cross-section, polygonal cross-section or elliptic cross-section.
11. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 10 is characterized in that described polygonal cross-section is triangular-section, square-section or square sectional.
12. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 10, it is characterized in that, when described polygonal cross-section is square-section or square sectional, its four corners are the circular arc corner, wherein a pair of relative circular arc corner is 90 °, arc radius 25～30mm, and another is 90 °, arc radius 5～10mm to relative circular arc corner.
13. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 4 is characterized in that described pile body through hole is circular hole, elliptical aperture or polygonal hole.
14. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 13 is characterized in that, described polygonal hole is tri-angle-holed, rectangular opening or square hole.
15. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, does not all dispose the metal end plate that is connected with reinforcing cage at the two ends of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
16. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 4 is characterized in that, is provided with the metal end plate that is connected with reinforcing cage at least one end of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
17. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 16 is characterized in that, described metal end plate shape of cross section is identical with the shape of cross section of the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement.
18. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 16 is characterized in that, all disposes at least one through wires hole and a tension force hole corresponding to each the root main reinforcement in the reinforcing cage on described metal end plate, wherein through wires hole and tension force hole connect.
19. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 18 is characterized in that when described main reinforcement was steel strand, described through wires hole was two, is symmetricly set on the both sides in described tension force hole and connects with described tension force hole.
20. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 19 is characterized in that the end of described steel strand is provided with screw thread, is connected with described metal end plate by nut.
21. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 19 is characterized in that, in the end of described steel strand draw-in groove is set, and snaps in the described draw-in groove with anchoring element, carries out stretch-draw or is connected with metal end plate by described anchoring element.
22. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 18 is characterized in that, when described main reinforcement was rod iron, described through wires hole was one, and this through wires hole and tension force hole connect.
23. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 21 is characterized in that, is connected by pier nose between described rod iron and the described metal end plate.
24. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 16 is characterized in that, offers a through hole at described metal end plate, described through hole is concentric with described pile body through hole.
25. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 24 is characterized in that, the through hole on the described metal end plate is identical or inequality with described pile body shape of through holes.
26. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 16 is characterized in that, is provided with bevel for welding in the outer rim of described metal end plate, is convenient to the connection of stake.
27. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, described reinforcing cage comprises that also shape in the shape of a spiral is welded on the stirrup on the main reinforcement continuously.
28. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 16 is characterized in that, the pile body connecting portion of described metal end plate and the prefabricated soldier pile of described inhomogeneous arrangement of reinforcement is provided with cuff.
29. the prefabricated soldier pile of inhomogeneous arrangement of reinforcement as claimed in claim 1 is characterized in that, described main reinforcement is through the stretch-draw of prestressing force definite value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696586 CN203129126U (en) | 2012-12-17 | 2012-12-17 | Uneven reinforcing-bar prefabricated supporting pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220696586 CN203129126U (en) | 2012-12-17 | 2012-12-17 | Uneven reinforcing-bar prefabricated supporting pile |
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| Publication Number | Publication Date |
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| CN203129126U true CN203129126U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220696586 Withdrawn - After Issue CN203129126U (en) | 2012-12-17 | 2012-12-17 | Uneven reinforcing-bar prefabricated supporting pile |
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| CN (1) | CN203129126U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966093A (en) * | 2012-12-05 | 2013-03-13 | 上海中技桩业股份有限公司 | Non-uniform reinforcing bar prefabricated support pile as well as forming method and forming die thereof |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
-
2012
- 2012-12-17 CN CN 201220696586 patent/CN203129126U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966093A (en) * | 2012-12-05 | 2013-03-13 | 上海中技桩业股份有限公司 | Non-uniform reinforcing bar prefabricated support pile as well as forming method and forming die thereof |
| CN102966093B (en) * | 2012-12-05 | 2016-01-06 | 上海中技桩业股份有限公司 | The prefabricated soldier pile of uneven arrangement of reinforcement and forming method thereof and moulding form |
| CN107130589A (en) * | 2017-06-07 | 2017-09-05 | 安徽省建筑科学研究设计院 | A kind of asymmetric compound armored concrete poured support stake |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20160106 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |