CN206591515U - 8-shaped stake with the edge of a wing - Google Patents
8-shaped stake with the edge of a wing Download PDFInfo
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- CN206591515U CN206591515U CN201720246788.3U CN201720246788U CN206591515U CN 206591515 U CN206591515 U CN 206591515U CN 201720246788 U CN201720246788 U CN 201720246788U CN 206591515 U CN206591515 U CN 206591515U
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Abstract
The utility model discloses the stake of the 8-shaped with the edge of a wing, including pile body and the edge of a wing, the both sides that pile body is located at the part of ground each extend over out the edge of a wing.The edge of a wing cross section is rectangle.Steel reinforcement cage is respectively provided with the pile body and the edge of a wing, pile body and the edge of a wing are poured by concrete integration.Pile body part located underground uses C25 C40 underwater concretings using rotary drilling machinery and trench machine construction and mud off；Part and the edge of a wing positioned at ground are now smash using formwork erection, use C25 C40 concretings.8-shaped stake of the utility model with the edge of a wing can improve rigidity and bending strength, Reducing distortion and displacement, reduce construction costs.
Description
Technical field
The utility model belongs to piling strtucture technical field, the 8-shaped stake particularly with the edge of a wing.
Background technology
General conventional circular peg board formula barricade, is breast boards of constructing again after the completion of pile foundation, and breast boards is shelved on circular stake
The back side or side cambered surface, structure power transmission is unintelligible；In actual engineering because circular stake be peripherally uniformly configure longitudinal direction by
The Reinforced Concrete Members with Flexure of power reinforcing bar, so being placed in the reinforcing bar waste by flanging；Breast boards pour or it is prefabricated installation be
, there is potential safety hazard in the form of construction work based on artificial.Therefore, it is necessary to further research and development stress more reasonable, rigidity and bending resistance
The intensity bigger, retaining wall that mechanized construction degree is higher, cost is lower and Extra-Deep Foundation Pit.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of good bending strength, big rigidity and low engineering cost, fitted
The stake of the 8-shaped with the edge of a wing for retaining wall and Extra-Deep Foundation Pit.
The utility model solves above-mentioned technical problem with following technical scheme：
8-shaped stake with the edge of a wing, including pile body and the edge of a wing, the cross section of pile body is 8-shaped, and pile body is located at the part of ground
Both sides each extend over out the edge of a wing.
The edge of a wing cross section is rectangle.
Steel reinforcement cage is respectively provided with the pile body and the edge of a wing, pile body and the edge of a wing are poured by concrete integration.
Steel reinforcement cage in the edge of a wing connects the longitudinal steel in a plurality of rectangle edge of a wing respectively for multiple rectangular horizontals to reinforcing bar inner side
Muscle is constituted；Steel reinforcement cage in the pile body forms 8-shaped horizontal steel bar, multiple 8 for two intersecting circular horizontals to reinforcing bar
The inner side of font horizontal steel bar connects a plurality of longitudinal reinforcement respectively；Rectangular horizontal to reinforcing bar and 8-shaped horizontal steel bar company
Contact, two intersecting circular horizontals use reinforcing bar colligation or welding respectively to the joining of reinforcing bar.
Pile body part located underground uses C25- using rotary drilling machinery and trench machine construction and mud off
C40 underwater concretings；Part and the edge of a wing positioned at ground are now smash using formwork erection, use C25-C40 concretings.
The beneficial effects of the utility model：
Compare circular peg board formula barricade and the 8-shaped stake with the edge of a wing：
(1) in the case of uiform section area, the rigidity of 8-shaped with edge of a wing stake is circular peg board formula barricade more than one times,
Can reach that rigidity is circular peg board formula barricade 1.8 times.
Etc. (2) in the case of rigidity, the 8-shaped stake with the edge of a wing is eager to do well in everything than circular peg board formula barricade stress spend it is high, can be significantly
Degree reduction total cost.Concrete 26% can be saved, reinforcing bar 34%-40%, total cost can save cost 18%-22%.
Brief description of the drawings
Fig. 1 is the cross-sectional view of 8-shaped stake of the utility model with the edge of a wing.Wherein, 1：Pile body, 2：The edge of a wing, 3：Steel
Muscle cage, 4：Concrete.
Fig. 2 is the facade structures schematic diagram of 8-shaped stake of the utility model with the edge of a wing, 1：Pile body, 2：The edge of a wing, 5：The soil body,
6：Ground elevation, 7：Stake top absolute altitude.
Fig. 3 is the comparative structure schematic diagram of 8-shaped stake of the equal the utility model of sectional area with the edge of a wing and circular stake.
Fig. 4 is the reinforcement cage structure schematic diagram in 8-shaped stake of the utility model with the edge of a wing, wherein, 3-1：8-shaped stake by
Power longitudinal reinforcement, 3-1a：8-shaped stake construction longitudinal reinforcement, 3-2：8-shaped horizontal steel bar, 3-3：Rectangle edge of a wing longitudinal reinforcement,
3-4：Rectangular horizontal is to reinforcing bar, 3-5：Tie point.
Embodiment
Embodiment of the present utility model is elaborated below in conjunction with accompanying drawing, but not constituted to the utility model
The limitation of claims.
As shown in figure 1, the 8-shaped stake with the edge of a wing, including pile body 1 and the edge of a wing 2, the cross section of pile body 1 is 8-shaped, pile body 1
The edge of a wing 2 is each extended over out positioned at the both sides of the part of ground, the cross section of the edge of a wing 2 is rectangle.
Steel reinforcement cage 3 is respectively provided with described pile body 1 and the edge of a wing 2, pile body 1 and the edge of a wing 2 are poured by the integration of concrete 4
Build.
The 8-shaped stake with edge of a wing part located underground is protected using rotary drilling machinery and trench machine construction and mud
Wall, uses C25-C40 underwater concretings；Part positioned at ground is now smash using formwork erection, is poured using C25-C40 concrete
Build.
It is as follows that the band edge of a wing 8-shaped stake performs current specifications：
《Code for design of concrete structures》(GB50010-2010)、《Code for design of building》GB50007-
2011、《Technical code for building pile foundation》JGJ94-2008、《Architecture foundation pile inspection specifications》JGJ106-2003、《The deep base of building
Cheat engineering construction safety technical specification》(JGJ 311-2013)、《Highway bridge and culvert ground and foundation design code》JTG D63-
2007、《Highway reinforced concrete and prestressed concrete bridge contain design specification》(JTG D62-2004).
Construction procedure of the utility model with the stake of edge of a wing 8-shaped：
Firstth, by construction plan unwrapping wire, positioning, planar dimension, numbering and the sequence of construction on stake position and the edge of a wing are indicated.
Secondth, the pile body of 8-shaped passes through rotary drilling machinery, mud off pore-forming.
3rd, the edge of a wing is by trench machine grooving, mud off shaping.
4th, the 8-shaped pile body of shaping, the center on the edge of a wing, size, groove depth, perpendicularity are carried out an acceptance inspection.
5th, steel reinforcement cage of the lifting Jing Guo acceptance(check).
As shown in figure 4, the steel reinforcement cage in the 8-shaped stake of the present utility model with the edge of a wing, the edge of a wing is multiple rectangle water
Put down and connect a plurality of rectangle edge of a wing longitudinal reinforcement 3-3 compositions respectively on the inside of reinforcing bar 3-4；Steel reinforcement cage in the pile body is two phases
The circular horizontal of friendship is to reinforcing bar formation 8-shaped horizontal steel bar 3-2, and multiple 8-shaped horizontal steel bar 3-2 inner side is connected respectively
A plurality of longitudinal reinforcement, wherein in the face of banketing for 8-shaped stake stress longitudinal reinforcement 3-1, banket outside face for 8-shaped stake structure
Make longitudinal reinforcement 3-1a.Tie point 3-5, two intersecting circles of the rectangular horizontal to reinforcing bar 3-4 and 8-shaped horizontal steel bar 3-2
The tie point 3-5 of shape horizontal steel bar uses reinforcing bar colligation or welding respectively.
Above-mentioned fabrication of reinforcing cage installation quality should meet《Technical code for building pile foundation》JGJ94-2008, the 6.2.5 articles.
6th, last casting concrete, concrete strength after reaching 100% each pile be required for doing horizontal loading and complete
The detection of whole property.Quality inspection and acceptance should meet《Technical code for building pile foundation》JGJ94-2008, the 9.1st article.
The main material that 8-shaped stake with the edge of a wing is used：
1st, concrete：Under ground portion uses C25-C40 underwater concretes；Aerial part uses C25-C40 concrete.
2nd, reinforcing bar：Steel reinforcement cage uses regular reinforcement HPB300, tensile strength design load fy=270N/mm2；Regular reinforcement
HRB400, tensile strength design load fy=360N/mm2；Regular reinforcement HRB500, tensile strength design load fy=435N/mm2。
Circular peg board formula barricade and with the edge of a wing 8-shaped stake Structure Calculation compare：
Calculating process needs following setting：
Firstth, the edge of a wing of the 8-shaped stake with the edge of a wing is favourable to structure, ignores the edge of a wing and disregards；
Secondth, under equal conditions, the chi on the rectangle edge of a wing of the breast boards of circular peg board formula barricade and the 8-shaped stake with the edge of a wing
Very little material usage is equal；
3rd, the area of section A of known 8-shaped stake, the moment of inertia Ix of the stress side to 8-shaped stake X-axis8, same material mix
The elastic modulus E for coagulating soil is equal.
4th, the pile center of two kinds of patterns is set away from equal, jib-length is equal, stake overall length is equal, the soil body 5 physics ginseng
Number is identical with environment.As shown in Fig. 2 the stake of the 8-shaped with the edge of a wing of the present embodiment, jib-length=stake top absolute altitude 7- ground mark
It is high by 6.
5th, in summary, the pile body part of 8-shaped stake and circular stake is only calculated：
1st, when comparing area of section phase, the rigidity EI of 8-shaped stake and circular stake.
As shown in figure 3, A=π d equal using area of section2/ 4, the diameter d in circular stake section is obtained, circular cross-section is to X
The moment of inertia Ix of axleo=π d4/ 64, calculate EIx by comparing8/EIxo=1.8.So, the armored concrete of homalographic
Stake, the rigidity of 8-shaped stake is 1.8 times of circular stake.
2nd, when comparing rigidity (EI) value phase, the intensity and construction costs of 8-shaped stake and circular stake.
(1) as shown in figure 3, the equal stiffness of circular stake and 8-shaped stake, EIxo=EIx8=E* π d4/ 64, obtain circular stake
Diameter d values.
(2) 8-shaped section is reduced to square-section by the moment of inertias such as homalographics.If the wide a of square-section, high b, A=
Ab and Ix8=ab3/ 12, solve equation the wide a for drawing square-section, high b.
(3) calculating of pile body
Mainly include it is following,
Earth pressure computation：Calculated using Coulomb theory
The internal force of stake and displacement are calculated：Calculated using " m " method,
The intensity (arrangement of reinforcement) of stake is calculated：Shear calculation flexural calculation, circular stake is peripherally uniformly to configure longitudinal stress steel
Muscle；And rectangular pile is tight side configuration Reinforcement, is configured longitudinal structure reinforcing bar by flanging.
(4) use《Manage positive Geotechnical Engineering calculating analysis software》Respectively calculate stake it is long from 20 meters to 25 meters when (stake is long 20 meters
When 8 meters of arm length, 10 meters of arm length when stake is long 25 meters) 8-shaped stake and circular stake internal force, arrangement of reinforcement and displacement.By structure meter
Calculate and the analysis of prices, the shift value of stake top is approximately equivalent, 8-shaped stake degree more eager to do well in everything than circular stake stress is high, can save concrete
26%, reinforcing bar 34%-40%, gross investment can save cost 18%-22%.
3rd, conclusion：In the case of uiform section area with the edge of a wing 8-shaped stake rigidity be circular peg board formula barricade about
1.8 again；In the case of etc. rigidity, the 8-shaped stake degree more eager to do well in everything than circular peg board formula barricade stress with the edge of a wing is high, can save concrete
26%, reinforcing bar 34%-40%, total cost can save cost 18%-22%.Horizontal thrust is bigger, and effect is more obvious.
Claims (5)
1. the 8-shaped stake with the edge of a wing, it is characterised in that：Including pile body and the edge of a wing, the cross section of pile body is 8-shaped, and pile body is located at
The both sides of the part of ground each extend over out the edge of a wing.
2. the 8-shaped stake with the edge of a wing as claimed in claim 1, it is characterised in that：The edge of a wing cross section is rectangle.
3. the 8-shaped stake with the edge of a wing as claimed in claim 1, it is characterised in that：Respectively it is provided with the pile body and the edge of a wing
Steel reinforcement cage, pile body and the edge of a wing are poured by concrete integration.
4. the 8-shaped stake with the edge of a wing as claimed in claim 3, it is characterised in that：Steel reinforcement cage in the edge of a wing is multiple squares
A plurality of rectangle edge of a wing longitudinal reinforcement composition is connected on the inside of shape horizontal steel bar respectively；Steel reinforcement cage in the pile body intersects for two
Circular horizontal to reinforcing bar formation 8-shaped horizontal steel bar, the inner side of multiple 8-shaped horizontal steel bars connects a plurality of longitudinal direction respectively
Reinforcing bar；Rectangular horizontal to the tie point of reinforcing bar and 8-shaped horizontal steel bar, joining from two intersecting circular horizontals to reinforcing bar
Reinforcing bar colligation or welding are used respectively.
5. the stake of the 8-shaped with the edge of a wing as described in one of claim 1-4, it is characterised in that：Pile body portion located underground
Divide using rotary drilling machinery and trench machine construction and mud off, use C25-C40 underwater concretings；Positioned at ground
Part and the edge of a wing are now smash using formwork erection, use C25-C40 concretings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246788.3U CN206591515U (en) | 2017-03-14 | 2017-03-14 | 8-shaped stake with the edge of a wing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246788.3U CN206591515U (en) | 2017-03-14 | 2017-03-14 | 8-shaped stake with the edge of a wing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206591515U true CN206591515U (en) | 2017-10-27 |
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ID=60124167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720246788.3U Active CN206591515U (en) | 2017-03-14 | 2017-03-14 | 8-shaped stake with the edge of a wing |
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| CN (1) | CN206591515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836210A (en) * | 2017-03-14 | 2017-06-13 | 广西桥通工程设计有限公司 | 8-shaped stake with the edge of a wing |
-
2017
- 2017-03-14 CN CN201720246788.3U patent/CN206591515U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836210A (en) * | 2017-03-14 | 2017-06-13 | 广西桥通工程设计有限公司 | 8-shaped stake with the edge of a wing |
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