CN202767065U - Partial prestressed concrete solid pile - Google Patents
Partial prestressed concrete solid pile Download PDFInfo
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- CN202767065U CN202767065U CN 201220394532 CN201220394532U CN202767065U CN 202767065 U CN202767065 U CN 202767065U CN 201220394532 CN201220394532 CN 201220394532 CN 201220394532 U CN201220394532 U CN 201220394532U CN 202767065 U CN202767065 U CN 202767065U
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- pile body
- prestressed
- pile
- main muscle
- muscle
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Abstract
The utility model discloses a partial prestressed concrete solid pile which comprises a pile body. The pile body is composed of concrete and a reinforcing cage poured in the concrete and extending along the length direction of the pile body. The reinforcing cage comprises a plurality of main reinforcements and a plurality of stirrups welded on the main reinforcements. The cross section of the pile body is a regular hexagon, and sectional dimensions of the pile body in the whole longitudinal shaft direction are identical. The main reinforcements of the reinforcing cage are 12-36 in number, and comprise 6-18 prestressed main reinforcements and 6-18 non-prestressed main reinforcements. The main reinforcements are hexagonally distributed in a plane, and the prestressed main reinforcements and the non-prestressed main reinforcements are uniformly distributed on the vertex angle and side line center positions of the hexagon. The partial prestressed concrete solid pile can effectively improve fragility of the pile body, enhances stretchability of the pile body, improves properties of seismic resistance, deformation and mechanics, and can be popularized and applied in areas with high requirements of seismic fortification intensity.
Description
Technical field
The utility model relates to and belongs to building field, relates to the improvement of foundation pile shape and structure in the building field, is the partially prestressed concrete solid pile specifically.
Background technology
The building materials of foundation pile engineering are more on market, if any pile tube, all kinds of square pile, castinplace pile, drilled pile etc.These pilings mainly are divided into non-prestressed member and prestressed member two large classes; Non-prestressed member mainly comprises traditional square pile, tube-sinking cast-in-situ pile etc.; It is relatively low to show as bearing capacity of single pile, and bending resistance (drawing), shear behavior are poor, long construction period, and pile quality does not meet designing requirement.The prestressed member piling comprises, pile tube, centrifugal prestress square pile etc.Their shortcoming is, often fragility is larger, and is shorter from the cracking to the time to rupture, and pile body ductility is relatively poor, causes the moment building collapsing when earthquake occurs, and makes that personnel do not have the sufficient time escape in the building.This problem is particularly outstanding in many shakes area such as Japan, Taiwan, China; Before, most of prefabricated pilings mostly are non-prestressed or prestressing force, and above-mentioned shortcoming is difficult to avoid.
Existing concrete prefabricated units cross section is various, and many on the market is square and circular cross-section, and when conduct carrying effect member, its maximum purpose is to improve the pile body bearing capacity that unit materials can provide, thereby economical with materials reduces cost.The very large characteristics of preformed pile are a side and soil interaction, utilize the frictional force between stake and the soil to improve pile body bearing capacity.
Relative and the section ratio surface area less of circular cross-section is not so take advantage at pile tube aspect the raising stake side-friction force; Hollow square pile and soil body frictional force are larger, and the bearing capacity ratio pile tube is good, and boring can be saved concrete material, but hollow square pile and pile tube sectional area are less, and shear resistance is not enough.
In the recent period, special-shaped triangular pile also occurs, but reinforcement ratio is lower, pile body globality, shearing resistance bending resistance tensile property are difficult to satisfy the engineering demand of high requirement.
The utility model content
The technical problems to be solved in the utility model provides that a kind of bearing capacity is large, the bending resistance shear behavior is good, shock resistance is strong, the high partially prestressed concrete solid pile of construction pile rate.
For achieving the above object, the technical solution of the utility model is as follows:
The partially prestressed concrete solid pile comprises pile body, and described pile body is by concrete and be cast in the concrete and the reinforcing cage that extends along the pile body length direction forms, and described reinforcing cage is comprised of some main muscle and some stirrups of being welded on the main muscle; The cross section of described pile body is regular hexagon, and described pile body is identical in whole y direction sectional dimension; Main muscle is 12～36 in the described reinforcing cage, comprises 6～18 prestressing force master muscle and 6～18 non-prestressed main muscle; Described main muscle plane is hexagon and distributes; A described prestressing force master muscle and non-prestressed main muscle are combined and are formed reinforcing bar pair, and described reinforcing bar is to being distributed in hexagonal drift angle and sideline place.
In an embodiment of the present utility model, main muscle is 12 in the described reinforcing cage, comprise 6 prestressing force master muscle and 6 non-prestressed main muscle, 6 prestressing force master muscle and 6 non-prestressed main muscle form 6 pairs of reinforcing bars pair, and described 6 pairs of reinforcing bars are to being evenly distributed on hexagonal drift angle place.
In an embodiment of the present utility model, the length of side of described pile body cross section is 200mm, 225mm, 250mm, 275mm, 300mm, 325mm, 350mm, 375mm, 400mm, 425mm, 450mm, 475mm, 500mm, 525mm or 550mm.
In an embodiment of the present utility model, described prestressing force master muscle is the PC rod iron, and its diameter is 7.1mm, 9.0mm, 10.7mm or 12.6mm.
In an embodiment of the present utility model, described non-prestressed main muscle is HRB335, HRB400 or HRB500 screw-thread steel, and its diameter is 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm or 30mm.
In an embodiment of the present utility model, be hoop reinforcement between the described pile body two ends 1000-2000mm, the stirrup spacing of described hoop reinforcement is 40-70mm, the outer stirrup spacing of hoop reinforcement is 60-100mm.
In an embodiment of the present utility model, described concrete forms reinforcement cover in the reinforcing cage outside, and the thickness of described reinforcement cover is 40-55mm.
By technique scheme, the beneficial effects of the utility model are:
Main muscle is 12 in the utility model reinforcing cage, comprise 6 prestressing force master muscle and 6 non-prestressed main muscle, prestressing force master muscle and non-prestressed main muscle are combined to form 6 pairs of reinforcing bars pair, 6 pairs of reinforcing bars are to being placed in respectively hexagon drift angle place, in conjunction with the common advantage of prestressing force and non-prestressed member, be more suitable for engineering and use.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is front view of the present utility model;
Fig. 2 is lateral view of the present utility model;
Fig. 3 is sectional view of the present utility model;
Fig. 4 is top view of the present utility model;
Fig. 5 is structural representation of the present utility model.
Numeral and the represented corresponding component title of letter among the figure:
100, pile body 200, reinforcing bar to 300, concrete 400, stirrup
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
To shown in Figure 5, the utility model partially prestressed concrete solid pile comprises pile body 100 referring to Fig. 1, and pile body 100 is by concrete 300 and be cast in the concrete 300 and the reinforcing cages that extend along pile body 100 length directions form.
Reinforcing cage is comprised of some main muscle and the some stirrups 400 that are welded on the main muscle, and the cross section of pile body 100 is regular hexagon, and pile body is identical in the sectional dimension of whole y direction, and its sectional area is larger, can effectively improve the pile body shear resistance; Pile body 100 is identical in the sectional dimension of whole y direction.
Main muscle is the 12-36 root in the utility model reinforcing cage, comprises the non-prestressed main muscle of 6-18 root prestressing force master's muscle and 6-18 root, and main muscle plane is hexagon and distributes; Each prestressing force master muscle and a non-prestressed main muscle are combined and are formed a reinforcing bar to 200, and when mounted, reinforcing bar is distributed in hexagonal drift angle and place, sideline to 200.
Embodiment 1
Main muscle is 12 in the utility model muscle cage, comprises 6 prestressing force master muscle and 6 non-prestressed main muscle, and prestressing force master muscle and non-prestressed main muscle are combined to form 6 pairs of reinforcing bars to 200, and reinforcing bar is evenly distributed on hexagonal drift angle place to 200.
When main muscle number of the present utility model during more than 12, the reinforcing bar that prestressing force master muscle and non-prestressed main muscle are combined to form can also be evenly distributed on place, hexagonal sideline to 200.
The length of side of the utility model pile body 100 cross sections is 200mm, 225mm, 250mm, 275mm, 300mm, 325mm, 350mm, 375mm, 400mm, 425mm, 450mm, 475mm, 500mm, 525mm or 550mm.
The utility model prestressing force master muscle is the PC rod iron, and diameter is 7.1mm, 9.0mm, 10.7mm or 12.6mm; Described non-prestressed main muscle is HRB335, HRB400 or HRB500 screw-thread steel, and diameter is 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm or 30mm.
Be hoop reinforcement between the utility model pile body 100 two ends 1000-2000mm, stirrup 400 spacings of described hoop reinforcement are 40-70mm, and outer stirrup 400 spacings of hoop reinforcement are 60-100mm.
The utility model master muscle is 40-55mm to the concrete thickness between pile body 100 lateral surfaces, than before the prestressed concrete member protective layer thickness obtain strengthening, the anticorrosion that can be inner reinforcing bar provides better guarantee, thereby improves the pile body durability.
The cross section of the utility model pile body 100 is that drift angle is the regular hexagon of fillet, and fillet is set to circular arc.
Because the cross section of the utility model pile body 100 is regular hexagon, its corner is stress and eliminates circular arc, so the utility model corner in the pile body moulding is easy to moulding, can effectively improve the pile rate.
Because the cross section of the utility model pile body 100 is regular hexagon, its corner is stress and eliminates circular arc, so the utility model can effectively eliminate stress concentrated in the pile foundation construction process, can effectively improve construction pile rate.
Because the cross section of the utility model pile body 100 is regular hexagon, its corner is stress and eliminates circular arc; Main muscle is hexagon and distributes, on structure, the utility model master muscle is rationally distributed, reinforcing cage in the shape of a spiral stirrup to be welded, make production pile ductility good, become that pile capacity is large, the bending resistance shear behavior is good, shock resistance is strong.
Because the cross section of the utility model pile body 100 is regular hexagon, its corner is stress and eliminates circular arc; Main muscle is hexagonal arrangement, on structure, the utility model master muscle is rationally distributed, stirrup is being welded in the shape of a spiral for reinforcing cage, and because having increased main muscle quantity, pile capacity is large, the bending resistance shear behavior is good, shock resistance is strong so that the utility model becomes with respect to like product before.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. the partially prestressed concrete solid pile comprises pile body, and described pile body is by concrete and be cast in the concrete and the reinforcing cage that extends along the pile body length direction forms, and described reinforcing cage is comprised of some main muscle and some stirrups of being welded on the main muscle; It is characterized in that the cross section of described pile body is regular hexagon, described pile body is identical in whole y direction sectional dimension; Main muscle is 12～36 in the described reinforcing cage, comprises 6～18 prestressing force master muscle and 6～18 non-prestressed main muscle; Described main muscle plane is hexagon and distributes; A described prestressing force master muscle and non-prestressed main muscle are combined and are formed reinforcing bar pair, and described reinforcing bar is to being distributed in hexagonal drift angle and sideline place.
2. partially prestressed concrete solid pile according to claim 1, it is characterized in that, main muscle is 12 in the described reinforcing cage, comprise 6 prestressing force master muscle and 6 non-prestressed main muscle, 6 prestressing force master muscle and 6 non-prestressed main muscle form 6 pairs of reinforcing bars pair, and described 6 pairs of reinforcing bars are to being evenly distributed on hexagonal drift angle place.
3. partially prestressed concrete solid pile according to claim 1, it is characterized in that the length of side of described pile body cross section is 200mm, 225mm, 250mm, 275mm, 300mm, 325mm, 350mm, 375mm, 400mm, 425mm, 450mm, 475mm, 500mm, 525mm or 550mm.
4. partially prestressed concrete solid pile according to claim 1 is characterized in that, described prestressing force master muscle is the PC rod iron, and its diameter is 7.1mm, 9.0mm, 10.7mm or 12.6mm.
5. partially prestressed concrete solid pile according to claim 1, it is characterized in that, described non-prestressed main muscle is HRB335, HRB400 or HRB500 screw-thread steel, and its diameter is 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm or 30mm.
6. partially prestressed concrete solid pile according to claim 1, it is characterized in that, be hoop reinforcement between the described pile body two ends 1000-2000mm, the stirrup spacing of this hoop reinforcement is 40-70mm, and the outer stirrup spacing of hoop reinforcement is 60-100mm.
7. partially prestressed concrete solid pile according to claim 1 is characterized in that, described concrete forms reinforcement cover in the reinforcing cage outside, and the thickness of described reinforcement cover is 40-55mm.
8. partially prestressed concrete solid pile according to claim 1 is characterized in that, the cross section of described pile body is positive fillet hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394532 CN202767065U (en) | 2012-08-09 | 2012-08-09 | Partial prestressed concrete solid pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394532 CN202767065U (en) | 2012-08-09 | 2012-08-09 | Partial prestressed concrete solid pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767065U true CN202767065U (en) | 2013-03-06 |
Family
ID=47773648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394532 Expired - Fee Related CN202767065U (en) | 2012-08-09 | 2012-08-09 | Partial prestressed concrete solid pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202767065U (en) |
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2012
- 2012-08-09 CN CN 201220394532 patent/CN202767065U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20180809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |