CN202000338U - Hollow square pile of foundation - Google Patents
Hollow square pile of foundation Download PDFInfo
- Publication number
- CN202000338U CN202000338U CN 201120114868 CN201120114868U CN202000338U CN 202000338 U CN202000338 U CN 202000338U CN 201120114868 CN201120114868 CN 201120114868 CN 201120114868 U CN201120114868 U CN 201120114868U CN 202000338 U CN202000338 U CN 202000338U
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- hollow square
- pile
- square pile
- basic hollow
- end plate
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Abstract
The utility model relates to a hollow square pile of a foundation, which comprises a reinforcement cage and concrete. The reinforcement cage comprises main reinforcements and stirrups, wherein the stirrups are spirally and continuously welded on the main reinforcements. End plates which are connected with the reinforcement cage are arranged at the two ends of the hollow square pile of the foundation. Casing hoops are arranged at positions at which the end plates are connected with the body of the hollow square pile of the foundation. The reinforcement cage additionally comprises at least two auxiliary reinforcements which are in parallel with the main reinforcements and are welded with the stirrups. The main reinforcements are steel bars and are in parallel with the body contour line of the hollow square pile of the foundation. Upset heads are arranged at positions at which the steel bars are connected with the end plates. The number of the main reinforcements is four to twenty-eight. The hollow square pile of the foundation, which is provided by the utility model, has the advantages of material saving, light dead weight, damage resistance, good pile body ductility, great fabricated pile bearing capacity and good bending resistance and shearing resistance.
Description
Technical field
The utility model belongs to building field, relates to the improvement of a kind of foundation pile shape and structure in the building field.Specifically, be a kind of basic hollow square pile.
Background technology
Building foundation engineering is the foundation of building, pile foundation become the structure building various buildings, particularly highrise building, heavy factory building in the bad area of soil property and have specific (special) requirements the base form that extensively adopts.The quality of stake directly influences the quality of pile foundation, because pile foundation quality is nonconforming, it is non-rare to cause brewageing major accident.At present, China coastal cities, buildings such as construction industry factory building, civilian construction and bridge, power station, harbour, warehouse are used most often prestressed concrete pipe pile.But shortcoming is also clearly: the smooth in appearance of prestressed concrete pipe pile is rounded, and is little with the frictional force of soil when using as friction pile, and anti-bending strength is relatively poor, and especially the shearing resistance of pile body, tensile property are poor, buried hidden danger for the basis of building,
Though solid side's stake can have certain improvement to the shortcoming of above pile tube, solid side's stake feed consumption is many, cost is high, and bearing capacity of single pile is relatively low, and bending resistance (drawing) shear behavior is relatively poor; Piling damages easily in transportation and the use, thereby causes the pile concrete durability bad.
The utility model content
The utility model provides a kind of basic hollow square pile, to reduce or to avoid problem noted earlier.
For addressing the above problem, the utility model proposes a kind of basic hollow square pile, comprise reinforcing cage, concrete; Described reinforcing cage comprises main muscle and stirrup, and described stirrup shape in the shape of a spiral is welded on the described main muscle continuously; The two ends of described basic hollow square pile are provided with the end plate that is connected with described reinforcing cage, the pile body connecting portion of described end plate and described basic hollow square pile is provided with cuff, described reinforcing cage also comprises at least two auxilliary muscle parallel with described main muscle, that be welded to connect with described stirrup, described main muscle is a rod iron, described main muscle is parallel with the pile body outline line of described basic hollow square pile, described rod iron and described end plate junction have heading, and described main muscle quantity is the 4-28 root.
Preferably, the profile of described end plate is identical with the pile body profile of described basic hollow square pile; Described end plate four limits are provided with the bevel for welding at 45 degree inclination angles, and central authorities have a circular hole, be provided with through wires hole and tension force hole symmetrically between described circular hole and described end plate four limits, described tension force hole links to each other with described through wires hole by the muscle groove separately, described through wires hole on the described end plate and the described tension force hole layout that is square, described through wires hole is a counter sink.
Preferably, described basic hollow square pile profile is square, its four limits corner is stress and eliminates circular arc, the arc radius R1 of a pair of arc chord angle on the described basic hollow square pile diagonal is 30-40mm, another arc radius R2 to arc chord angle is 10-20mm, the length L of described cuff is 110mm-320mm, and described cuff is being the projection of 1-3mm along the equidistant 2-4 of being provided with of the axial direction of described basic hollow square pile road radius.
Preferably, described auxilliary muscle is a nonprestressed reinforcement, is evenly distributed on the described stirrup at least two symmetrical limits on the pile body cross section, and quantity is the 2-18 root.
Preferably, at least one end of described auxilliary muscle is not fixedlyed connected with the described end plate at the pile body two ends of described basic hollow square pile.
Basic hollow square pile provided by the utility model owing to adopted hollow shape, so material-saving, from heavy and light, pile body four limit corners are stress and eliminate circular arc, pile crown is connected with cuff, makes piling not fragile when the building operations hammering, has improved product pile rate.
Basic hollow square pile provided by the utility model, main muscle is rationally distributed, stirrup in the shape of a spiral shape be welded on the main muscle, and have the auxilliary muscle parallel with main muscle, so pile body ductility is good, become pile capacity big, the bending resistance shear behavior is good.
Basic hollow square pile provided by the utility model, end plate have bevel for welding and have also strengthened the fastness that pile connects.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein,
Fig. 1 is the reinforcing cage structural representation according to the basic hollow square pile of a specific embodiment of the present utility model;
Fig. 2 is the structural representation of basic hollow square pile shown in Figure 1;
Fig. 3 is the vertical view of basic hollow square pile shown in Figure 1;
Fig. 4 is the schematic cross-section according to the basic hollow square pile of a specific embodiment of the present utility model.
The specific embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.
Describe structure and principle thereof with reference to the accompanying drawings in detail according to a kind of basic hollow square pile of the present utility model.
Fig. 1 is the reinforcing cage structural representation according to the basic hollow square pile of a specific embodiment of the present utility model; Fig. 2 is the structural representation of basic hollow square pile shown in Figure 1; Fig. 3 is the vertical view of basic hollow square pile shown in Figure 1; Fig. 4 is the schematic cross-section according to the basic hollow square pile of a specific embodiment of the present utility model; For clarity sake, among the figure with three vertical coordinate systems as a reference, wherein, along coordinate axes z to the axial direction that is this basis hollow square pile, along coordinate axes x to the horizontal direction that is described basic hollow square pile cross section, along coordinate axes y to the longitudinal direction that is described basic hollow square pile cross section.
Specifically, shown in Fig. 1,2,4, described basic hollow square pile comprises reinforcing cage 1, concrete 2.Described reinforcing cage 1 comprises main muscle 11 and stirrup 12, and the stirrup 12 of reinforcing cage shape in the shape of a spiral is welded on the described main muscle 11 continuously; Described basic hollow square pile profile is square, and the stake heart is columnar mesopore, and the arc radius R1 of a pair of arc chord angle on the described basic hollow square pile diagonal is 30-40mm, and arc chord angle is 90 degree; Another arc radius R2 to arc chord angle is 10-20mm, and arc chord angle is similarly 90 degree.Pile body four limit corners are stress and eliminate circular arc, make piling not fragile when the building operations hammering.The two ends of described basic hollow square pile are provided with the end plate 3 that is connected with described reinforcing cage 1, have further strengthened the intensity of pile crown.
In another specific embodiment, described reinforcing cage 1 also comprise at least two parallel with described main muscle 11, with the auxilliary muscle 13 that described stirrup 12 is welded to connect, further strengthen the bending resistance shear behavior of pile body.
In the utility model, auxilliary muscle 13 is parallel to main muscle 11 to be arranged, the difference of itself and main muscle 11 is, the two ends of main muscle 11 are connected on the end plate 3 at two ends of basic hollow square pile, are used to bear along pile body axial pulling force or pressure.And auxilliary muscle 13 two ends or at least one end are not connected on the end plate 3, are used to bear the horizontal shearing force of pile body, and basic hollow square pile of the prior art is not arranged auxilliary muscle, and the bending resistance shear behavior is slightly poor than technique scheme of the present utility model.
In another specific embodiment, described auxilliary muscle 13 is a nonprestressed reinforcement, is evenly distributed on the described stirrup 12 at least two symmetrical limits on the pile body cross section, and quantity is the 2-18 root.
In a preferred embodiment, described auxilliary muscle 13 at least one ends are not fixedlyed connected with the described end plate 3 at pile body two ends, can further strengthen the intensity of pile body like this, strengthen the bending resistance shear behavior of pile body.
In another specific embodiment, the profile of described end plate 3 is identical with the pile body profile, and two end plates four limits are provided with the bevel for welding 32 at 45 degree inclination angles, has therefore strengthened the fastness that pile connects.
In another specific embodiment, described main muscle 11 is parallel with the pile body outline line.
Shown in Fig. 1-4, described end plate 3 central authorities are and the stake identical circular hole of bore dia in the heart, are provided with through wires hole 311 and tension force hole 313 between circular hole and four limits symmetrically, and each described tension force hole 313 links to each other with described through wires hole 311 by muscle groove 312 separately.
In another specific embodiment, described main muscle 11 is a rod iron, and rod iron and described end plate 3 junctions have heading, can make rod iron more firm with being connected of end plate 3 like this.
In another specific embodiment, described main muscle 11 quantity are the 4-28 root
In another specific embodiment, described through wires hole 311 on the end plate 3 and described tension force hole 313 layout that is square generally, described through wires hole 311 is counter sinks, can avoid like this that the heading to described main muscle 11 causes damage when the construction hammering.
In another specific embodiment, described end plate 3 is provided with cuff 4 with the pile body connecting portion, therefore can further strengthen the intensity of pile crown, avoids when the construction hammering pile crown being caused damage.
In another specific embodiment, the length L of described cuff 4 is 110mm-320mm.Described cuff 4 is being the projection of 1-3mm along the equidistant 2-4 of being provided with of the axial direction of described basic hollow square pile road radius.
Basic hollow square pile provided by the utility model owing to adopted hollow shape, so material-saving, from heavy and light, pile body four limit corners are stress and eliminate circular arc, pile crown is connected with cuff, makes piling not fragile when the building operations hammering, has improved product pile rate.
Basic hollow square pile provided by the utility model, main muscle is rationally distributed, stirrup in the shape of a spiral shape be welded on the main muscle, and have the auxilliary muscle parallel with main muscle, so pile body ductility is good, become pile capacity big, the bending resistance shear behavior is good.
Basic hollow square pile provided by the utility model, end plate have bevel for welding and have also strengthened the fastness that pile connects.
Though it will be appreciated by those skilled in the art that the utility model is that mode according to a plurality of embodiment is described, and is not that each embodiment only comprises an independently technical scheme.Narration like this only is for the sake of clarity in the manual; those skilled in the art should make manual as a wholely to be understood, and regard technical scheme related among each embodiment as the mode that can be combined into different embodiment mutually understand protection domain of the present utility model.
The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations, the modification of being done under the prerequisite that does not break away from design of the present utility model and principle and combining all should belong to the scope of the utility model protection.
Claims (5)
1. a basic hollow square pile comprises, reinforcing cage (1), concrete (2); It is characterized in that described reinforcing cage (1) comprises main muscle (11) and stirrup (12), described stirrup (12) shape in the shape of a spiral is welded on the described main muscle (11) continuously; The two ends of described basic hollow square pile are provided with the end plate (3) that is connected with described reinforcing cage (1), described end plate (3) is provided with cuff (4) with the pile body connecting portion of described basic hollow square pile, described reinforcing cage (1) also comprises at least two auxilliary muscle (13) parallel with described main muscle (11), that be welded to connect with described stirrup (12), described main muscle (11) is a rod iron, described main muscle (11) is parallel with the pile body outline line of described basic hollow square pile, described rod iron and described end plate (3) junction have heading, and described main muscle (11) quantity is the 4-28 root.
2. basic hollow square pile according to claim 1 is characterized in that, the profile of described end plate (3) is identical with the pile body profile of described basic hollow square pile; Described end plate (3) four limits are provided with the bevel for welding (32) at 45 degree inclination angles, and central authorities have a circular hole, be provided with through wires hole (311) and tension force hole (313) symmetrically between described circular hole and described end plate (3) four limits, described tension force hole (313) links to each other with described through wires hole (311) by muscle groove (312) separately, described through wires hole (311) on the described end plate (3) and described tension force hole (313) layout that is square, described through wires hole (311) is a counter sink.
3. basic hollow square pile according to claim 2, it is characterized in that, described basic hollow square pile profile is square, its four limits corner is stress and eliminates circular arc, the arc radius R1 of a pair of arc chord angle on the described basic hollow square pile diagonal is 30-40mm, another arc radius R2 to arc chord angle is 10-20mm, the length L of described cuff (4) is 110mm-320mm, and described cuff (4) is being the projection of 1-3mm along the equidistant 2-4 of being provided with of the axial direction of described basic hollow square pile road radius.
4. basic hollow square pile according to claim 3 is characterized in that, described auxilliary muscle (13) is a nonprestressed reinforcement, is evenly distributed on the described stirrup (12) at least two symmetrical limits on the pile body cross section, and quantity is the 2-18 root.
5. basic hollow square pile according to claim 4 is characterized in that, at least one end of described auxilliary muscle (13) is not fixedlyed connected with the described end plate (3) at the pile body two ends of described basic hollow square pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120114868 CN202000338U (en) | 2011-04-19 | 2011-04-19 | Hollow square pile of foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120114868 CN202000338U (en) | 2011-04-19 | 2011-04-19 | Hollow square pile of foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000338U true CN202000338U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120114868 Expired - Fee Related CN202000338U (en) | 2011-04-19 | 2011-04-19 | Hollow square pile of foundation |
Country Status (1)
| Country | Link |
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| CN (1) | CN202000338U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505680A (en) * | 2011-10-24 | 2012-06-20 | 天津开发区福林发展有限公司 | Prestressed reinforced concrete special-shaped precast pile |
| CN102747728A (en) * | 2012-07-30 | 2012-10-24 | 天津建城基业集团有限公司 | Prestressed centrifugal square pile |
| CN103015406A (en) * | 2012-12-31 | 2013-04-03 | 建华建材（中国）投资有限公司 | Mixed reinforced non-full-circular concrete precast pile |
| CN103590397A (en) * | 2012-08-13 | 2014-02-19 | 上海中技桩业股份有限公司 | Partially prestressed and partially non-prestressed concrete hollow pile |
| CN103883039A (en) * | 2014-02-19 | 2014-06-25 | 浙江杭萧钢构股份有限公司 | Headed-web steel tube bundle combined structure |
-
2011
- 2011-04-19 CN CN 201120114868 patent/CN202000338U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102505680A (en) * | 2011-10-24 | 2012-06-20 | 天津开发区福林发展有限公司 | Prestressed reinforced concrete special-shaped precast pile |
| CN102747728A (en) * | 2012-07-30 | 2012-10-24 | 天津建城基业集团有限公司 | Prestressed centrifugal square pile |
| CN103590397A (en) * | 2012-08-13 | 2014-02-19 | 上海中技桩业股份有限公司 | Partially prestressed and partially non-prestressed concrete hollow pile |
| CN103590397B (en) * | 2012-08-13 | 2016-03-30 | 上海中技桩业股份有限公司 | A kind of partial prestressing part non-prestressed concrete hollow square pile |
| CN103015406A (en) * | 2012-12-31 | 2013-04-03 | 建华建材（中国）投资有限公司 | Mixed reinforced non-full-circular concrete precast pile |
| CN103883039A (en) * | 2014-02-19 | 2014-06-25 | 浙江杭萧钢构股份有限公司 | Headed-web steel tube bundle combined structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20180419 |