CN105658876A - Joint structure for steel pipe pile - Google Patents
Joint structure for steel pipe pile Download PDFInfo
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- CN105658876A CN105658876A CN201480057909.9A CN201480057909A CN105658876A CN 105658876 A CN105658876 A CN 105658876A CN 201480057909 A CN201480057909 A CN 201480057909A CN 105658876 A CN105658876 A CN 105658876A
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- Prior art keywords
- embedding
- section
- steel pipe
- interior
- interior embedding
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 112
- 239000010959 steel Substances 0.000 title claims abstract description 112
- 230000006835 compression Effects 0.000 claims description 65
- 238000007906 compression Methods 0.000 claims description 65
- 238000000926 separation method Methods 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 15
- 230000002153 concerted effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012999 compression bending Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Provided is a joint structure for a steel pipe pile that coaxially connects a first steel pipe pile and a second steel pipe pile and wherein: an outer fitting valley section is formed so that the plate thickness thereof increases the closer an outer fitting stepped section is to the first steel pipe pile,an inner fitting valley section is formed so that the plate thickness thereof increases the closer an inner fitting stepped section is to the second steel pipe pile,and, in a state in which an inner fitting end section is inserted in an outer fitting end section, rotated relative to the outer fitting end section, and fitted thereto, an inner fitting tip surface and the surface that faces this inner fitting tip surface are separated by a predetermined distance (D) and the overall surface area of a tension-side contact surface that is made to bear tensile force is equal to or less than the total surface area of the surface area of the outer fitting tip surface that bears compressive force and the overall surface area of a compression-side contact surface that bears compressive force.
Description
Technical field
The present invention relates to the joint of the steel pipe piling for the 1st steel pipe piling and the 2nd steel pipe piling being linked structure along axis direction.
The application based on the Patent 2013-252957 CLAIM OF PRIORITY in Japanese publication on December 6th, 2013, by its content quotation in this.
Background technology
Since in the past, as the joint structure the 1st steel pipe piling and the 2nd steel pipe piling linked along axis direction, welding joint and mechanical adapter are utilized.
Welding joint docks each other with end by making the 1st steel pipe piling and the 2nd steel pipe piling and carries out welding and obtain. But, the joint of welding joint is configured on application property to there is difficult point, and the skill level that the quality in welding portion and activity duration can be subject to big degree on-the-spot environment and operator is driven.
So, as the joint structure of the steel pipe piling of application property excellence, as disclosed in patent documentation 1 and patent documentation 2, it is proposed that the joint structure of the steel pipe piling realized by mechanical adapter.
During disclosed in patent documentation 1, the joint of steel pipe piling constructs, adjacent on axis direction the 1st and the 2nd is formed respectively and is fitted together to the outer end of a couple freely and interior embedding end each other. Further, in outer end and interior formation engagement part, embedding end and engaged part, this engagement part and engaged part by making it engage with each other around relative rotation the in axle center when inserting interior embedding end to outer end.
In the joint of steel pipe piling disclosed in this patent documentation 1 constructs, it is provided with in engagement part and engaged part and separately stops unit, should separately stop engagement part that unit closed for stoping card and engaged part to separate in the radial direction of the 1st or the 2nd.
In the joint of steel pipe piling disclosed in patent documentation 2 constructs, adjacent on axis direction the 1st and the 2nd is formed respectively and is fitted together to the outer end of a couple freely and interior embedding end each other. Further, in outer end and interior embedding end, forming multiple card along axis direction and close protuberance and engaged protuberance, this card conjunction protuberance and engaged protuberance are by making it rotate around axle center and engage with each other when inserting interior embedding end to outer end.
During the joint of steel pipe piling disclosed in this patent documentation 2 constructs, in outer end, the card being arranged at top ends side closes the forming part of protuberance, more be formed as bigger than the diameter of the forming part of the card conjunction protuberance being arranged at base end part side, in interior embedding end, the forming part being arranged at the engaged protuberance of top ends side, is more formed as less than the diameter of the forming part of the engaged protuberance being arranged at base end part side.
Prior art literature
Patent documentation
Patent documentation 1: the flat 11-43937 publication of Japanese Laid-Open
Patent documentation 2: the flat 11-43936 publication of Japanese Laid-Open
Summary of the invention
The problem that invention to be solved
In the joint of steel pipe piling constructs, go to tip side from the base end side of outer end and interior embedding end, from engagement part, block and close the drawing force reduction that protuberance is passed to engaged part, engaged protuberance.
But, the steel pipe piling disclosed in patent documentation 1 joint construct in, although going from the base end side of outer end and interior embedding end to tip side, be passed to engaged part drawing force reduce, but the plate of engaged part thick be set as on axis direction identical. Therefore, in the joint of the steel pipe piling disclosed in patent documentation 1 constructs, especially there are the following problems point: the thick useless part of the plate of the tip side of outer end and interior embedding end becomes many, exceeds that desirably to increase plate thick and cause cost and raise.
On the other hand, in the joint of the steel pipe piling disclosed in patent documentation 2 constructs, going from the base end side of outer end and interior embedding end to tip side, the drawing force being passed to engaged protuberance reduces, correspondingly, go the plate reducing engaged protuberance gradually thick from base end side to tip side. But, in the joint of the steel pipe piling disclosed in this patent documentation 2 constructs, there are the following problems point: diminish owing to the plate of protuberance engaged at the tip side place of outer end and interior embedding end is thick, so the compression ability of engaged protuberance reduces at the tip side place of outer end and interior embedding end, engaged protuberance produces bending deformation.
The present invention makes in view of the above problems, its object is to provide the joint of following steel pipe piling to construct, the joint structure of this steel pipe piling can the plate of the tip side reducing outer end and interior embedding end thick and while suppressing the rising of material cost, prevent the bending deformation of the most thin section of tip side.
For the means dealt with problems
The technical scheme of the present invention as follows described in.
(1) first technical scheme of the present invention is the joint structure of the steel pipe piling the 1st steel pipe piling and the 2nd steel pipe piling coaxially linked. the joint structure of this steel pipe piling possesses and is arranged at described 1st steel pipe piling and the bearing of trend along the 1st axle center of described 1st steel pipe piling is formed with the outer end in multiple outer section of portion and is arranged at described 2nd steel pipe piling and the bearing of trend along the 2nd axle center of described 2nd steel pipe piling is formed with embedding end in multiple interior embedding section of portion, each outer section of portion in described multiple outer section of portion possesses: outer mountain portion, it is given prominence to along the direction towards described 1st axle center, and is formed multiple in the circumference centered by described 1st axle center, outer caulking groove portion, it is formed between each described outer mountain portion adjacent one another are, and outer valley, itself and each described outer mountain portion adjoin and are formed at the base end side near described 1st steel pipe piling, in each in described multiple interior embedding section of portion, embedding section of portion possesses: interior embedding mountain portion, it is given prominence to along the direction away from described 2nd axle center, and is formed multiple in the circumference centered by described 2nd axle center, interior caulking groove portion, it is formed between each described interior embedding mountain portion adjacent one another are, and interior embedding valley, itself and each described interior embedding mountain portion adjoin and are formed at the base end side near described 2nd steel pipe piling, in described multiple outer section of portion, near outer section of portion of described 1st steel pipe piling, then the plate of described outer valley is thick is formed more big, in described multiple interior embedding section of portion, embedding section of portion in described 2nd steel pipe piling, then the plate of described interior embedding valley is thick is formed more big, when making the described outer end of insertion, described interior embedding end and relatively rotate and be fitted together to, the interior embedding top end face of the tip side of described interior embedding end separates predetermined distance of separation D with the phase opposite of this interior embedding top end face, in bearing surface against each other between described multiple outer section of portion and described multiple interior embedding section of portion, the total area of the tensile side bearing surface of burden drawing force adds up to below area as follows, described total area is the area of the outer top end face of the tip side of the described outer end of burden force of compression and the total area of the total area of the compressed side bearing surface of burden force of compression.
(2 can also be, in the joint of the steel pipe piling described in above-mentioned (1) constructs, the total area of described tensile side bearing surface is below the total area of described compressed side bearing surface.
(3) can also be, in the joint of the steel pipe piling described in above-mentioned (1) or (2) constructs, in nearest apart from the tip side of described interior embedding end in the described interior embedding mountain portion in embedding section of portion, projecting height on direction towards described 2nd axis direction is being defined as h, when length on the bearing of trend in described 2nd axle center is defined as l, described predetermined distance of separation D meets following formula (A).
D��(h2+l2)0.5-l ... formula (A)
(4) can also be, during the joint of the steel pipe piling described in arbitrary item in above-mentioned (1)��(3) constructs, the projecting height in the described interior embedding mountain portion in described multiple interior embedding section of portion each other and the projecting height in the described outer mountain portion in described multiple outer section of portion each other at least one party roughly the same.
(5) can also be that, during the joint of the steel pipe piling described in arbitrary item in above-mentioned (1)��(4) constructs, the described phase opposite of described interior embedding top end face is the outer base end face of the described base end side of described outer end.
(6) can also be that, in the joint of the steel pipe piling according to any one of above-mentioned (1)��(4) constructs, the described phase opposite of described interior embedding top end face is the end face of described 1st steel pipe piling.
The effect of invention
Joint structure according to the steel pipe piling that above-mentioned (1) is recorded, there is following structure: in multiple outer section of portion, near outer section of portion of the 1st steel pipe piling, then the plate of outer valley is thick is formed more big, and, in multiple interior embedding section of portion, embedding section of portion in the 2nd steel pipe piling, then in, the plate of embedding valley is thick is formed more big. Therefore, compared with base end side, the plate at the position reasonably reducing the drawing force being passed and the less tip side of force of compression is thick, it is possible to while suppressing the rising of material cost, prevents outer most thin section and the bending deformation of interior embedding most thin section.
In addition, joint structure according to the steel pipe piling that above-mentioned (1) is recorded, insert outer end when making interior embedding end and when coaxially relatively rotating and be fitted together to, the distance of separation D that the phase opposite of the interior embedding top end face of the tip side of interior embedding end and this interior embedding top end face is separately predetermined. Accordingly, it may be possible to prevent the force of compression from the phase opposite of interior embedding top end face to be passed to this interior embedding top end face, it is possible to the bending deformation of the interior embedding most thin section being easily out of shape when preventing compression force.
And, joint structure according to the steel pipe piling that above-mentioned (1) is recorded, in bearing surface against each other between multiple outer section of portion and multiple interior embedding section of portion, the total area of the tensile side bearing surface of burden drawing force is the area of the outer top end face of the tip side of the outer end adding up to below area, described total area to be burden force of compression as follows and the total area of the total area of the compressed side bearing surface of burden force of compression. Therefore, even if in outer most thin section just in case force of compression bending deformation occurring and can bearing by outer top end face has diminished, it is also possible to overcome force of compression by the compressed side bearing surface in the section portion of remainder. Accordingly, it may be possible to overall by outer end and that the entirety maintenance of interior embedding end is predetermined compression ability.
Joint structure according to the steel pipe piling that above-mentioned (2) are recorded, the total area of tensile side bearing surface is below the total area of compressed side bearing surface. Therefore, even if in outer most thin section just in case when bending deformation occurring and force of compression cannot be born by outer top end face, it is also possible to overcome force of compression by the compressed side bearing surface in the section portion of remainder. Accordingly, it may be possible to keep predetermined compression ability more effectively by outer end entirety and interior embedding end entirety.
Joint structure according to the steel pipe piling that above-mentioned (3) are recorded, distance of separation D is set to meet above-mentioned formula (A). Therefore, even if when the joint structure of steel pipe piling there occurs flexural deformation, force of compression from the phase opposite of interior embedding top end face also can not be passed to this interior embedding top end face, it is possible to prevent the bending deformation of the interior embedding most thin section being easily out of shape during compression force more effectively.
The joint structure of the steel pipe piling recorded according to above-mentioned (4), the projecting height in the outer mountain portion of the projecting height in the interior embedding mountain portion in multiple interior embedding section of portion each other and in multiple outer section of portion each other at least one party roughly the same. Therefore, the machinability in interior embedding section of portion and/or outer section of portion improves.
Joint structure according to the steel pipe piling recorded in above-mentioned (5) or (6), it is possible to adopt and the phase opposite of interior embedding top end face is set to the outer base end face of base end side of outer end or the tectonic sieving of the end face of the 1st steel pipe piling.
Accompanying drawing explanation
Fig. 1 is the stereographic map of the joint structure of the steel pipe piling representing one embodiment of the present invention.
Fig. 2 is the figure representing the outer end that above-mentioned joint constructs, and is the sectional view during section observation comprising axle center.
Fig. 3 is the figure representing the outer end that above-mentioned joint constructs, and is the sectional block diagram of major portion.
Fig. 4 is the front view of the interior embedding end representing that above-mentioned joint constructs.
Fig. 5 is the figure of the interior embedding end representing that above-mentioned joint constructs, and is the sectional block diagram of major portion.
Fig. 6 is the stereographic map representing the state of embedding end in insertion in the outer end that above-mentioned joint constructs.
Fig. 7 is the figure of the state after representing in the outer end that above-mentioned joint constructs embedding end in insertion and making it relatively rotate, and is the stereographic map that will wherein observe after part cutting.
Fig. 8 is the part sectioned view representing the major portion that above-mentioned joint constructs.
Fig. 9 is the part sectioned view representing the 1st variation that above-mentioned joint constructs.
Figure 10 is the part sectioned view of the preferred lower limit value of the distance of separation D constructed for illustration of above-mentioned joint.
Figure 11 is the part sectioned view representing the 2nd variation that above-mentioned joint constructs.
Figure 12 A is the upward view representing the outer end that above-mentioned joint constructs.
Figure 12 B is the vertical view of the interior embedding end representing that above-mentioned joint constructs.
Figure 13 A is the vertical view representing the outer end that above-mentioned joint constructs.
Figure 13 B is the upward view of the interior embedding end representing that above-mentioned joint constructs.
Figure 14 is the major portion sectional view of the drawing force representing the outer end acting on above-mentioned joint structure.
Figure 15 is the major portion sectional view of the force of compression representing the outer end acting on above-mentioned joint structure.
Figure 16 is the major portion sectional view of the drawing force representing the interior embedding end acting on above-mentioned joint structure.
Figure 17 is the major portion sectional view of the force of compression representing the interior embedding end acting on above-mentioned joint structure.
Figure 18 A is the major portion sectional view representing the 3rd variation that above-mentioned joint constructs.
Figure 18 B is the major portion sectional view representing the 4th variation that above-mentioned joint constructs.
Figure 19 is the major portion sectional view of the bearing surface representing the outer end that above-mentioned joint constructs.
Figure 20 is the major portion sectional view of the bearing surface of the interior embedding end representing that above-mentioned joint constructs.
Embodiment
Hereinafter, about the joint structure 7 (following, to be sometimes called the joint structure 7 of present embodiment or construct 7 simply referred to as joint) of the steel pipe piling of one embodiment of the present invention, explain with reference to accompanying drawing.
In addition, in the following description, sometimes the axle center bearing of trend of steel pipe piling is called axis direction Y, the direction orthogonal with axis direction Y is called axle center orthogonal directions X, the direction in the axle center around steel pipe piling is called circumference W.
As shown in Figure 1, the joint structure 7 of present embodiment is set as in the foundation pile etc. of the structure being structured on ground, has the 1st axle center and cross section to be the 1st steel pipe piling 1 of circular shape by having and has the 2nd axle center and cross section is the mechanical adapter that links of the 2nd steel pipe piling 2 coaxial (axis direction Y) ground of circular shape.
In the upper end of the 1st steel pipe piling 1, engaged the outer end 3 being formed with multiple outer section of portion 4 along axis direction Y by modes such as welding. In the bottom of the 2nd steel pipe piling 2, engaged by modes such as welding and it is formed with embedding end 5 in multiple interior embedding section of portion 6 along axis direction Y. Outer end 3 and interior embedding end 5 have chimeric structure freely each other.
Each the outer section of portion 4 being formed in multiple outer section of portion 4 of outer end 3 has: outer mountain portion 31, and it is given prominence to along the direction towards its axle center and is formed multiple on circumference W; Outer caulking groove portion 32, it is formed between each outer mountain portion 31 adjacent one another are on circumference W; And outer valley 33, itself and each outer mountain portion 31 adjoins and is formed at the base end side near the 1st steel pipe piling.
In each outer section of portion 4, from the view point of mosaic and processibility, it is preferable that outer caulking groove portion 32 and outer valley 33 as shown in Figure 1 with the thick formation of identical plate to become coplanar each other.
In the joint structure 7 of present embodiment, as shown in Figure 1, for each the outer section of portion 4 in multiple outer section of portion 4, circumference W is formed with 4 outer mountains portion 31 with being separated with predetermined space, but the present invention is not only defined in this structure.
Being formed in each in the multiple interior embedding section of portion 6 of interior embedding end 5 embedding section of portion 6 has: interior embedding mountain portion 51, and it is given prominence to along the direction away from its axle center, and is formed multiple on circumference W; Interior caulking groove portion 52, it is formed in adjacent one another are each between embedding mountain portion 51 on circumference W; And interior embedding valley 53, in itself and each, embedding mountain portion 51 is adjacent and be formed at the base end side near the 2nd steel pipe piling.
In each in embedding section of portion 6, from the view point of mosaic and processibility, it is preferable that interior caulking groove portion 52 and interior embedding valley 53 as shown in Figure 1 with the thick formation of identical plate to become coplanar each other.
In the joint structure 7 of present embodiment, as shown in Figure 1, for embedding section of portion 6 in each in multiple interior embedding section of portion 6, circumference W is formed with in 4 embedding mountain portion 51 with being separated with predetermined space, but the present invention is not only defined in this structure.
In addition, in the joint structure 7 of present embodiment, as shown in Figure 1, circumference W is formed with 4 places for inserting the keyway P of rotation stopping key, but can not also forming keyway, described rotation stopping key is for the relative rotation after stoping outer end 3 chimeric with interior embedding end 5.
In the joint structure 7 of present embodiment, as shown in Figure 2, the axis direction of outer end 3 forms 4 sections of outer section of portions 4. That is, outer end 3 has 1st outer section of portion 41,2nd outer section of portion 42,3rd outer section of portion 43 and 4th outer section of portion 44 successively on the axis direction Y of outer end 3 from tip side to base end side.
In each outer section of portion 4, the plate thick quilt in outer caulking groove portion 32 is set to thick less than the plate in outer mountain portion 31, and outer mountain portion 31 and outer caulking groove portion 32 are alternately formed on circumference W.Further, the outer mountain portion 31 in multiple outer section of portion 4 roughly configures along row on axis direction Y.
Equally, in each outer section of portion 4, the plate thick quilt of outer valley 33 is set to thick less than the plate in outer mountain portion 31, and outer mountain portion 31 and outer valley 33 are submitted at axis direction Y and alternately formed.
As shown in Figure 3, near outer section of portion 4 of outer end 3 base end side, then the plate of outer valley 33 is thick is formed more big.
Namely, the plate of the outer valley 33 in 1st outer section of portion 41 is thick to be formed thick less than the plate of the outer valley 33 in 2nd outer section of portion 42, the plate of the outer valley 33 in 2nd outer section of portion 42 is thick to be formed thick less than the plate of the outer valley 33 in 3rd outer section of portion 43, and the plate of the outer valley 33 in 3rd outer section of portion 43 is thick to be formed thick less than the plate of the outer valley 33 in 4th outer section of portion 44.
The outer valley 33 in 1st outer section of portion 41 is formed as the thick minimum outer most thin section 30 of plate in outer end 3, in the tip side of axis direction Y in the outer mountain portion 31 in 1st outer section of portion 41, forms outer top end face 34 in roughly planar.
In addition, the base end side of the axis direction Y of the outer valley 33 in 4th outer section of portion 44, forms outer remaining long portion 45. In the tip side of this outer remaining long portion 45, form outer base end face 35 throughout complete cycle.
In the joint structure 7 of present embodiment, as shown in Figure 4, embedding section of portion 6 in forming 4 sections on the axis direction Y of interior embedding end 5. That is, interior embedding end 5 has from tip side to base end side on the axis direction Y of interior embedding end 5 in the 1st in embedding section of portion 61, the 2nd in embedding section of portion 62, the 3rd that in embedding section of portion 63 and the 4th embedding section of portion 64 successively.
In each in embedding section of portion 6, the plate thick quilt in interior caulking groove portion 52 is set to thick less than the plate in interior embedding mountain portion 51, and interior embedding mountain portion 51 and interior caulking groove portion 52 are alternately formed on circumference W. Further, the interior embedding mountain portion 51 in multiple interior embedding section of portion 6 roughly configures along row on axis direction Y.
Equally, in each in embedding section of portion 6, the plate thick quilt of interior embedding valley 53 is set to thick less than the plate in interior embedding mountain portion 51, and interior embedding mountain portion 51 and interior embedding valley 53 are alternately formed on axis direction Y.
As shown in Figure 5, embedding section of portion in the base end side of interior embedding end 5, then in, the plate of embedding valley 53 is thick is formed more big.
Namely, in 1st, the plate of the interior embedding valley 53 in embedding section of portion 61 is thick is formed thick less than the plate of the interior embedding valley 53 in embedding section of portion 62 in the 2nd, in 2nd, the plate of the interior embedding valley 53 in embedding section of portion 62 is thick is formed thick less than the plate of the interior embedding valley 53 in embedding section of portion 63 in the 3rd, in the 3rd the plate of the interior embedding valley 53 in embedding section of portion 63 thick formed than the 4th in the plate of interior embedding valley 53 in embedding section of portion 64 thick little.
In 1st, the interior embedding valley 53 in embedding section of portion 61 is formed as the thick minimum interior embedding most thin section 50 of plate in interior embedding end 5, and in the 1st, the tip side of the axis direction Y in embedding mountain portion 51 in embedding section of portion 61, forms interior embedding top end face 54 in roughly planar.
In addition, the base end side of the axis direction Y of embedding valley 53 in embedding section of portion 64 in the 4th, embedding remaining long portion 65 in being formed. In the tip side of this interior embedding remaining long portion 65, form interior embedding base end face 55 throughout complete cycle.
In the joint structure 7 of present embodiment, in order to the 1st steel pipe piling 1 and the 2nd steel pipe piling 2 coaxially be linked, as shown in Figure 6, Figure 7, outer end 3 and interior embedding end 5 are fitted together to each other. In addition, Fig. 7 is the stereographic map representing the state after a part for outer end 3 being cut.
Specifically, first, as shown in Figure 6, the insertion that is installed in the 2nd steel pipe piling 2 embedding end 5 is installed in the outer end 3 of the 1st steel pipe piling 1.In each in embedding section of portion 6, below the degree of depth that the height on the axle center orthogonal directions X in interior embedding mountain portion 51 is configured on the axle center orthogonal directions X in outer caulking groove portion 32 that corresponds when chimeric. Thus, the structure that interior embedding mountain portion 51 can be made through outer caulking groove portion 32 is become.
Next, as shown in Figure 7, when interior embedding end 5 is inserted outer end 3, the 1st steel pipe piling 1 is rotated relative on the circumferential W in axle center with the 2nd steel pipe piling 2. In each in embedding section of portion 6, more than the height that the degree of depth on the axle center orthogonal directions X of interior embedding valley 53 is designed on the axle center orthogonal directions X in outer mountain portion 31 that corresponds when chimeric. Thus, the structure that outer mountain portion 31 can be made to be embedded in interior embedding valley 53 is become.
Fig. 8 is that outer end 3 is inserted and the summary section of state after rotation relatively in the interior embedding end 5 of the joint structure 7 making present embodiment. As shown in Figure 8, joint structure 7 has: the outer top end face 34 of the tip side of outer end 3; The outer counterpart 36 that the interior embedding base end face 55 of the base end side of interior embedding end 5 is relative; The interior embedding top end face 54 of the tip side of interior embedding end 5; And the interior embedding counterpart 56 that the outer base end face 35 of the base end side of outer end 3 is relative.
As shown in Figure 8, in (the 1st outer section of portion 41 of outer section of portion 4 except 4th outer section of portion 44, 2nd outer section of portion 42, 3rd outer section of portion 43) and except embedding section of portion 61 in the 1st in (in the 4th embedding section of portion 64 in embedding section of portion 6, embedding section of portion 63 in 3rd, embedding section of portion 62 in 2nd) in, length on the axis direction Y in interior embedding mountain portion 51 is designed to the length being substantially equal on the axis direction Y of the outer valley 33 corresponded when chimeric, and the length on the axis direction Y in outer mountain portion 31 be designed to be substantially equal to correspond when chimeric in embedding valley 53 axis direction Y on length. thus, become outer mountain portion 31 and interior embedding mountain portion 51 can be made to block conjunction on axis direction Y.
On the other hand, in 4th outer section of portion 44 and the 1st in embedding section of portion 61, as shown in Figure 8, the length on the axis direction Y in interior embedding mountain portion 51 is designed to less than the length on the axis direction Y of outer valley 33. Thus, at interior embedding counterpart 56 place, the interior embedding top end face 54 distance of separation D (mm) that face and outer base end face 35 are separately predetermined corresponding thereto, forms interior embedding gap 57 at interior embedding counterpart 56 place.
Fig. 9 is the summary section of the joint structure 107 of the steel pipe piling of the 1st variation representing the present invention. Constructing in 107 at this joint, the plate thick quilt of outer remaining long portion 45 is set as that the plate of the outer valley 33 with 4th outer section of portion 44 is thick equal. According to this structure, it is possible to reduce the material cost of outer end 3, and improve the machinability of outer valley 33 and reduce the manufacturing cost of outer end 3.
When constructing 107 for this joint, the phase opposite of interior embedding top end face 54 is the end face of the 1st steel pipe piling 1. Therefore, at interior embedding counterpart 56 place, the interior embedding top end face 54 distance of separation D (mm) that the face i.e. end face of the 1st steel pipe piling 1 is separately predetermined corresponding thereto, thus form interior embedding gap 157 at interior embedding counterpart 56 place.
By forming interior embedding gap 57,157, it is possible to avoid the force of compression on axis direction Y to be passed to interior embedding top end face 54. Accordingly, it may be possible to prevent the bending deformation of interior embedding most thin section 50.
The distance of separation D (mm) in interior embedding gap 57,157 is more than 0mm. But, even if in order to also avoid the force of compression on axis direction Y to be passed to interior embedding top end face 54 when steel pipe piling there occurs flexural deformation, it is preferable that be set as meeting following formula (1) by distance of separation D (mm).
D��(h2+l2)0.5-l ... formula (1)
H (mm): in nearest apart from the tip side of interior embedding end in embedding section of portion in embedding mountain portion towards the projecting height on the direction in axle center
L (mm): in nearest apart from the tip side of interior embedding end in embedding section of portion in the length on the bearing of trend in axle center in embedding mountain portion
As shown in Figure 10, above-mentioned formula (1) is the formula that within assuming, the tie point in embedding most thin section 50 and interior embedding mountain portion 51 carries out flexural deformation and derive as flexural center point C.
That is, meet above-mentioned formula (1) by being set to by distance of separation D (mm), even if thus when steel pipe piling there occurs flexural deformation, it is also possible to avoid effectively interior embedding top end face 54 corresponding thereto face contact.
Figure 11 is the major portion sectional view of the joint structure 207 of the 2nd variation representing the present invention. Construct in 207 at this joint, at outer counterpart 36 place, also it is formed with outer gap 37 samely with interior embedding counterpart 56. According to this structure, it is possible to avoid the force of compression on axis direction Y to be passed to outer top end face 34, it is possible to prevent the bending deformation of outer most thin section 30. Although the diagram of eliminating, it is also possible to by thick for the plate of interior embedding remaining long portion 65 be set to thick equal with the plate of embedding valley 53 in embedding section of portion 64 in the 4th. In this case, the phase opposite of outer top end face 34 is the end face of the 2nd steel pipe piling 2. In addition, the distance of separation D ' (mm) in outer gap 37 is more than 0mm, it is possible to is set to and meets following formula (2).
D����(h��2+l��2)0.5-l ' ... formula (2)
H ' (mm): the outer mountain portion in the outer section of portion that the tip side apart from outer end is nearest towards the projecting height on the direction in axle center
L ' (mm): the length on the bearing of trend in axle center in the outer mountain portion in the outer section of portion that the tip side apart from outer end is nearest
But, interior embedding counterpart 56 side easily produces bending deformation because of eccentric relative to steel pipe portion compared with outer counterpart 36 side when compression force. Therefore, the bending deformation preventing effectiveness obtained by arranging outer gap 37 is less than the bending deformation preventing effectiveness obtained by arranging interior embedding gap 57.
Next, the bearing surface 8 of the joint structure 7 of present embodiment is described.
In the joint structure 7 of present embodiment, insert outer end 3 by making interior embedding end 5 and relatively rotate, thus in each outer section of portion 4 and interior embedding section of portion 6, form outer mountain portion 31 and interior embedding mountain portion 51 bearing surface 8 against each other on axis direction Y.
When the 1st steel pipe piling 1 and the 2nd steel pipe piling 2 have linked, when applying drawing force and force of compression from the 1st steel pipe piling 1 and the 2nd steel pipe piling 2 on axis direction Y to outer end 3 and interior embedding end 5, for drawing force and the force of compression of effect on axis direction Y, overcome with the bearing surface 8 on axis direction Y by outer mountain portion 31 and interior embedding mountain portion 51.
In the joint structure 7 of present embodiment, as shown in Figure 12 A, Figure 12 B, in each outer section of portion 4 and interior embedding section of portion 6, in outer mountain portion 31 and interior embedding mountain portion 51 bearing surface 8 against each other, the base end side of outer end 3 and the base end side of interior embedding end 5 are the tensile side bearing surfaces 81 of burden drawing force.
And, such as Figure 12 A, shown in Figure 12 B, in the outer mountain portion the 31 and the 4th in 1st outer section of portion 41, the interior embedding mountain portion 51 in embedding section of portion 64 has extension area At1 at tensile side bearing surface 81 place, in the outer mountain portion the 31 and the 3rd in 2nd outer section of portion 42, the interior embedding mountain portion 51 in embedding section of portion 63 has extension area At2 at tensile side bearing surface 81 place, in the outer mountain portion the 31 and the 2nd in 3rd outer section of portion 43, the interior embedding mountain portion 51 in embedding section of portion 62 has extension area At3 at tensile side bearing surface 81 place, in the outer mountain portion the 31 and the 1st in 4th outer section of portion 44, the interior embedding mountain portion 51 in embedding section of portion 61 has extension area At4 at tensile side bearing surface 81 place.
In addition, in the joint structure 7 of present embodiment, as shown in Figure 13 A, Figure 13 B, in each outer section of portion 4 and interior embedding section of portion 6, in outer mountain portion 31 and interior embedding mountain portion 51 bearing surface 8 against each other, the tip side of outer end 3 and the tip side of interior embedding end 5 are the compressed side bearing surfaces 86 of burden force of compression.
And, as shown in Figure 13 A, Figure 13 B, in the outer mountain portion the 31 and the 4th in 2nd outer section of portion 42, the interior embedding mountain portion 51 in embedding section of portion 64 has compressing area Ac1 at compressed side bearing surface 86 place, in the outer mountain portion the 31 and the 3rd in 3rd outer section of portion 43, the interior embedding mountain portion 51 in embedding section of portion 63 has compressing area Ac2 at compressed side bearing surface 86 place, and in the outer mountain portion the 31 and the 2nd in 4th outer section of portion 44, the interior embedding mountain portion 51 in embedding section of portion 62 has compressing area Ac3 at compressed side bearing surface 86 place.
In the joint structure 7 of present embodiment, having following structure: at outer counterpart 36 place, outer top end face 34 is with interior embedding base end face 55 to connecing, and on the other hand, at interior embedding counterpart 56 place, interior embedding top end face 54 and outer base end face 35 are to connecing.
Therefore, in the joint structure 7 of present embodiment,
(A) for the drawing force of effect on axis direction Y, only overcome by the tensile side bearing surface 81 of against each other 4 in outer mountain portion 31 and portion 51, interior embedding mountain,
(B) for the force of compression of effect on axis direction Y, only overcome by the compressed side bearing surface 86 of the outer top end face 34 of the tip side of outer end 3 and outer mountain portion 31 and against each other 3, portion 51, interior embedding mountain.
In addition, such at joint structure 207 (Figure 11) of the 2nd variation described above, have when outer counterpart 36 place also same with interior embedding counterpart 56 be formed with outer gap 37 structure, construct in 207 at joint,
(A ') for the drawing force acted on axis direction Y, only overcome by the tensile side bearing surface 81 of against each other 4 in outer mountain portion 31 and portion 51, interior embedding mountain,
(B ') for the force of compression acted on axis direction Y, only overcome by the compressed side bearing surface 86 of against each other 3 in outer mountain portion 31 and portion 51, interior embedding mountain.
Be formed as: in the bearing surface 8 against each other by outer section of portion 4 and interior embedding section of portion 6, the total area (At1+At2+At3+At4) of the tensile side bearing surface 81 of burden drawing force is below the total area of the total area (Ac1+Ac2+Ac3) of the area (being 0 when the joint for the 2nd variation constructs 207) of the outer top end face 34 of burden force of compression and the compressed side bearing surface 86 of burden force of compression.
In addition, be preferably formed to: in the bearing surface 8 against each other by outer section of portion 4 and interior embedding section of portion 6, the total area (At1+At2+At3+At4) of tensile side bearing surface 81 of burden drawing force be the compressed side bearing surface 86 of burden force of compression the total area (Ac1+Ac2+Ac3) below.
Like this, in the joint structure 7 of present embodiment, although it is fewer than the section number forming tensile side bearing surface 81 to form the section number of compressed side bearing surface 86, but the total area making tensile side bearing surface 81 is the mode of below the total area of the area of the total area of compressed side bearing surface 86 and the outer top end face 34 of burden force of compression, forms each outer mountain portion 31 and interior embedding mountain portion 51 bearing surface 8 against each other.
In addition, when outer top end face 34 is formed with the keyway P for inserting rotation stopping key, " area of outer top end face 34 of burden force of compression ", not containing the area at the position being formed with keyway, described rotation stopping key is for stoping the relative rotation after being fitted together to of outer end 3 and interior embedding end 5.This is because, rotation stopping key does not bear force of compression substantially.
In the joint structure 7 of present embodiment, it it is more than the total area of tensile side bearing surface 81 by the total area of the total area of the area and compressed side bearing surface 86 that make the outer top end face 34 of burden force of compression, thus the force of compression for the size applied on axis direction Y and more than drawing force equal extent, only just can overcome by the compressed side bearing surface 86 of outer top end face and each outer mountain portion 31 and interior embedding mountain portion 51.
In addition, when make the total area of compressed side bearing surface 86 be tensile side bearing surface 81 the total area more than, for the force of compression of the size applied on axis direction Y and more than drawing force equal extent, only just can overcome by the compressed side bearing surface 86 in each outer mountain portion 31 and interior embedding mountain portion 51.
In the joint structure 7 of present embodiment, even if when outer top end face 34 and interior embedding base end face 55 at outer counterpart 36 place to connecing, also substantially portion 31, the outer mountain effect in 1st outer section of portion 41 can not there be is force of compression, so without the need to the force of compression considering to act on the outer mountain portion 31 in 1st outer section of portion 41 in design.
Figure 14 has illustrated the drawing force transmitted in the outer end 3 of the joint structure 7 of present embodiment.
The outer valley 33 in 1st outer section of portion 41 is passed the drawing force in the outer mountain portion 31 acting on 1st outer section of portion 41. The outer valley 33 in 2nd outer section of portion 42 is passed making a concerted effort of the drawing force in the outer mountain portion 31 acting on 1st outer section of portion 41 and 2nd outer section of portion 42. The outer valley 33 in 3rd outer section of portion 43 is passed making a concerted effort of the drawing force in the outer mountain portion 31 in the 1st outer section of portion 41 that act on, 2nd outer section of portion 42 and 3rd outer section of portion 43. The outer valley 33 in 4th outer section of portion 44 is passed making a concerted effort of the drawing force in the outer mountain portion 31 in the 1st outer section of portion 41 that act on, 2nd outer section of portion 42,3rd outer section of portion 43 and 4th outer section of portion 44.
Equally, Figure 15 has illustrated the force of compression transmitted in the outer end 3 of the joint structure 7 of present embodiment.
The outer valley 33 in 2nd outer section of portion 42 is passed the force of compression in the outer mountain portion 31 acting on 2nd outer section of portion 42. The outer valley 33 in 3rd outer section of portion 43 is passed making a concerted effort of the force of compression in the outer mountain portion 31 acting on 2nd outer section of portion 42 and 3rd outer section of portion 43. The outer valley 33 in 4th outer section of portion 44 is passed making a concerted effort of the force of compression in the outer mountain portion 31 in the 2nd outer section of portion 42 that act on, 3rd outer section of portion 43 and 4th outer section of portion 44.
Like this, in the joint structure 7 of present embodiment, go from the base end side of outer end 3 to tip side, the drawing force and the force of compression that are passed to outer valley 33 from outer mountain portion 31 reduce, even if so the plate that the tip side in outer end 3 reduces outer valley 33 is thick, it is also possible to overcome these drawing forces and force of compression. Thus, the increase suppressing the plate of outer end 3 entirety thick by going the plate reducing outer valley 33 thick from the base end side of outer end 3 to tip side, it is possible to suppress the rising of material cost.
In the joint structure 7 of present embodiment, reduce at the place of 1st outer section of portion 41 of the tip side of outer end 3 plate of outer valley 33 thick and while suppressing the rising of the material cost of outer end 3, by not doing one's utmost the outer mountain portion 31 in 1st outer section of portion 41 is applied force of compression, at place of 1st outer section of portion 41, outer valley 33 can not be transmitted force of compression by essence, it is possible to prevents the bending deformation of outer most thin section 30.
In addition, in the joint structure 7 of present embodiment, even if the outer mountain portion 31 in 1st outer section of portion 41 is applied force of compression, do not expect that the outer valley 33 in 1st outer section of portion 41 has compression ability yet. Therefore, construct in 7 at joint, even if when outer most thin section 30 is because being passed to the force of compression of the outer valley 33 in 1st outer section of portion 41 and there occurs bending deformation, also force of compression can be overcome by the outer valley 33 in 2nd outer section of portion 42,3rd outer section of portion 43 and 4th outer section of portion 44, it is possible to keep predetermined compression ability with outer end 3 entirety.
Figure 16 shows the drawing force being passed in embedding end 5 in the joint structure 7 of present embodiment.
In 1st, the interior embedding valley 53 in embedding section of portion 61 is passed the drawing force in the interior embedding mountain portion 51 in the embedding section of portion 61 in the 1st that act on. In 2nd, the interior embedding valley 53 in embedding section of portion 62 is passed making a concerted effort of the drawing force in the interior embedding mountain portion 51 in the embedding section of portion 62 in embedding section of portion 61 and the 2nd in the 1st that act on. In 3rd, the interior embedding valley 53 in embedding section of portion 63 is passed making a concerted effort of the drawing force that acts in the 1st the interior embedding mountain portion 51 in embedding section of portion 63 in embedding section of portion 62 and the 3rd in embedding section of portion 61, the 2nd. In 4th, the interior embedding valley 53 in embedding section of portion 64 is passed making a concerted effort of the drawing force that acts in the 1st in embedding section of portion 61, the 2nd the interior embedding mountain portion 51 in embedding section of portion 64 in embedding section of portion 63 and the 4th in embedding section of portion 62, the 3rd.
Equally, Figure 17 has illustrated the force of compression transmitted in embedding end 5 in the joint structure 7 of present embodiment.
In 2nd, the interior embedding valley 53 in embedding section of portion 62 is passed the force of compression in the interior embedding mountain portion 51 in the embedding section of portion 62 in the 2nd that act on. In 3rd, the interior embedding valley 53 in embedding section of portion 63 is passed making a concerted effort of the force of compression in the interior embedding mountain portion 51 in the embedding section of portion 63 in embedding section of portion 62 and the 3rd in the 2nd that act on. In 4th, the interior embedding valley 53 in embedding section of portion 64 is passed making a concerted effort of the force of compression that acts in the 2nd the interior embedding mountain portion 51 in embedding section of portion 64 in embedding section of portion 63 and the 4th in embedding section of portion 62, the 3rd.
Like this, in the joint structure 7 of present embodiment, go from the base end side of interior embedding end 5 to tip side, the drawing force and the force of compression that are passed to interior embedding valley 53 from interior embedding mountain portion 51 reduce, even if so the plate of embedding valley 53 is thick in the tip side place of interior embedding end 5 reduces, it is also possible to overcome these drawing forces and force of compression. Thus, construct in 7 at joint, in reducing by going from the base end side of interior embedding end 5 to tip side, the plate of embedding valley 53 is thick suppress in the thick increase of the plate of embedding end 5 entirety, it is possible to suppress the rising of material cost.
Construct in 7 at joint, in the 1st of the tip side of interior embedding end 5 the embedding section of place of portion 61 reduce in the plate of embedding valley 53 thick and while the rising of material cost that is embedding end 5 in suppression, by embedding mountain portion 51 in embedding section of portion 61 in the 1st not being applied force of compression by interior embedding gap 57, thus in embedding section of place of portion 61, embedding valley 53 is not passed force of compression in the 1st, it is possible to prevent the bending deformation of interior embedding most thin section 50.
Figure 18 A illustrates the joint structure 307 of the 3rd variation of the present invention. As this joint constructs 307, it is also possible to multiple outer section of portion 4 and interior embedding section of portion 6 part or all in, the side on the axle center orthogonal directions X in outer valley 33 and interior embedding mountain portion 51 arranges tapering.
Figure 18 B illustrates the joint structure 407 of the 4th variation of the present invention. As this joint constructs 407, it is also possible to multiple outer section of portion 4 and interior embedding section of portion 6 part or all in, the side on the axle center orthogonal directions X in interior embedding valley 53 and outer mountain portion 31 arranges tapering.
In the joint structure 7 of present embodiment, as shown in Figure 19, go from the tip side of outer end 3 to base end side, the inner side that the outer mountain portion 31 in each outer section of portion 4 is configured on the orthogonal directions X of axle center.
In the joint structure 7 of present embodiment, when define the radius r 41 in the outer mountain portion 31 from central shaft to 1st outer section of portion 41, the radius r 42 in the outer mountain portion 31 from central shaft to 2nd outer section of portion 42, the radius r 43 in the outer mountain portion 31 from central shaft to 3rd outer section of portion 43, the outer mountain portion 31 from central shaft to 4th outer section of portion 44 radius r 44, meet r41 > relation of r42 > r43 > r44.
And, in the joint structure 7 of present embodiment, as shown in Figure 19, the height of the base end side being positioned at outer end 3 in the outer mountain portion 31 in 1st outer section of portion 41 is being defined as ht1, the height of the base end side being positioned at outer end 3 in the outer mountain portion 31 in 2nd outer section of portion 42 is defined as ht2, the height of the base end side being positioned at outer end 3 in the outer mountain portion 31 in 3rd outer section of portion 43 is defined as ht3, when the height of the base end side being positioned at outer end 3 in the outer mountain portion 31 in 4th outer section of portion 44 is defined as ht4, meet the relation of ht1��ht2��ht3��ht4.
At this, it is also possible in the way of meeting the relation of ht1=ht2=ht3=ht4, the height in outer mountain portion 31 is set as roughly the same. In this case, from the viewpoint of the machinability in outer mountain portion 31 is preferred.
In addition, can also be, by following r41>relation of r42>r43>r44 ground, the height in outer mountain portion 31 is set in the way of meeting the relation of ht1<ht2<ht3<ht4, thus make in the outer mountain portion 31 in each outer section of portion 4, extension area At1, extension area At2, extension area At3 and extension area At4 are roughly the same.
Equally, in the joint structure 7 of present embodiment, as shown in Figure 19, the height in the tip side of outer end 3 in the outer mountain portion 31 in 2nd outer section of portion 42 is being defined as hc1, the height at the base end side of outer end 3 in the outer mountain portion 31 in 3rd outer section of portion 43 is defined as hc2, the height at the base end side of outer end 3 in the outer mountain portion 31 in 4th outer section of portion 44 is defined as hc3, meet the relation of hc1��hc2��hc3.
At this, it is also possible in the way of meeting the relation of hc1=hc2=hc3, the height in outer mountain portion 31 is set to roughly the same, in this case, from the viewpoint of the machinability in outer mountain portion 31 is preferred.
In addition, can also be, by following r41>relation of r42>r43>r44 ground, the height in outer mountain portion 31 is set in the way of meeting the relation of hc1<hc2<hc3, thus make in the outer mountain portion 31 in each outer section of portion 4, compressing area Ac1, compressing area Ac2 and compressing area Ac3 are roughly the same.
In the joint structure 7 of present embodiment, as shown in Figure 20, go from the tip side of interior embedding end 5 to base end side, by the outside that embedding mountain portion 51 in embedding section of portion 6 in each is configured on the orthogonal directions X of axle center.
In the joint structure 7 of present embodiment, when define embedding mountain portion 51 in embedding section of portion 61 in from central shaft to the 1st radius r 61, from central shaft to the 2nd in embedding section of portion 62 embedding mountain portion 51 radius r 62, from central shaft to the 3rd in embedding section of portion 63 embedding mountain portion 51 radius r 63, from central shaft to the 4th in embedding section of portion 64 embedding mountain portion 51 radius r 64, meet the relation of r61 < r62 < r63 < r64.
And, in the joint structure 7 of present embodiment, as shown in Figure 20, in embedding section of portion 64, the height at the base end side of interior embedding end 5 in embedding mountain portion 51 is defined as ht1 in by the 4th, the height at the base end side of interior embedding end 5 in embedding mountain portion 51 in embedding section of portion 63 in 3rd is defined as ht2, the height at the base end side of interior embedding end 5 in embedding mountain portion 51 in embedding section of portion 62 in 2nd is defined as ht3, by the height at the base end side of interior embedding end 5 in embedding mountain portion 51 is defined as ht4 in embedding section of portion 61 in the 1st, meet the relation of ht1 >=ht2 >=ht3 >=ht4.
At this, it is also possible in the way of meeting the relation of ht1=ht2=ht3=ht4, the height in interior embedding mountain portion 51 is set as roughly the same. In this case, from the viewpoint of the machinability in interior embedding mountain portion 51 is preferred.
In addition, can also be, by following the relation ground of r61 < r62 < r63 < r64, the height in interior embedding mountain portion 51 is set in the way of meeting the relation of ht1 < ht2 < ht3 < ht4, thus make in each in embedding section of portion 6 in embedding mountain portion 51, extension area At1, extension area At2, extension area At3 and extension area At4 are roughly the same.
Equally, in the joint structure 7 of present embodiment, as shown in Figure 20, in embedding section of portion 64, the height in the tip side of interior embedding end 5 in embedding mountain portion 51 is defined as hc1 in by the 4th, the height at the base end side of interior embedding end 5 in embedding mountain portion 51 in embedding section of portion 63 in 3rd is defined as hc2, by the height at the base end side of interior embedding end 5 in embedding mountain portion 51 is defined as hc3 in embedding section of portion 62 in the 2nd, meet the relation of hc1 >=hc2 >=hc3.
At this, it is also possible in the way of meeting the relation of hc1=hc2=hc3, the height in interior embedding mountain portion 51 is set as roughly the same. In this case, from the viewpoint of the machinability in interior embedding mountain portion 51 is preferred.
In addition, can also by following the relation ground of r61 < r62 < r63 < r64, setting the height in interior embedding mountain portion 51 in the way of meeting the relation of hc1 < hc2 < hc3, thus make in each in embedding section of portion 6 in embedding mountain portion 51, compressing area Ac1, compressing area Ac2 and compressing area Ac3 are roughly the same.
In addition, when extension area At1, extension area At2, extension area At3 and extension area At4 are set as roughly the same, for the drawing force of effect on axis direction Y, it is possible in the outer mountain portion 31 and interior embedding section of portion 6 in each outer section of portion 4, embedding mountain portion 51 overcomes this drawing force to approximate equality degree.
In addition, by compressing area Ac1, compressing area Ac2 and compressing area Ac3 are set as roughly the same, thus the force of compression for effect on axis direction Y, it is possible in the outer mountain portion 31 and interior embedding section of portion 6 in each outer section of portion 4, embedding mountain portion 51 overcomes this force of compression substantially uniformly.
Thus, construct in 7 at joint, for drawing force and the force of compression of effect on axis direction Y, this drawing force and force of compression can be overcome substantially uniformly by embedding mountain portion 51 in the outer mountain portion 31 in each outer section of portion 4 and interior embedding section of portion 6, therefore, it is possible to reduce the waste in the structure supporting capacity of outer end 3 and interior embedding end 5, make to calculate for the structure of drawing force and force of compression to become easy.
The present application joint structure 7 in, as described above, it is also possible to be, the projecting height in the interior embedding mountain portion in multiple interior embedding section of portion each other and the projecting height in the outer mountain portion in multiple outer section of portion each other at least one party roughly the same.
" roughly the same " in the present application refers to the manufacture error etc. allowing about 20%, even if outer mountain portion 31 and interior embedding mountain portion 51 create these when manufacturing errors etc., is also used as these areas and is set to roughly the same.
Above, being described in detail by the example of embodiments of the present invention, above-mentioned enforcement mode all only represents the example specialized when implementing of the present invention, cannot thus restrictively be explained by the technical scope of the present invention.
Such as, it is also possible to be, at the 1st steel pipe piling 1, interior embedding end 5 is installed, and at the 2nd steel pipe piling 2, outer end 3 is installed.
In addition, it is also possible on the axis direction Y of outer end 3 and interior embedding end 5, outer section of portion 4 of any section number and interior embedding section of portion 6 is formed.
In addition, it is also possible to be, in each outer section of portion 4, interior embedding section of portion 6, is staggered and be configured to roughly meander-like in the position on the axis direction Y in each outer mountain portion 31 and interior embedding mountain portion 51.
In addition, it is also possible to be, by being cut the end of the 1st steel pipe piling 1 or the 2nd steel pipe piling 2, it is provided with outer end 3 or interior embedding end 5 with it at the 1st steel pipe piling 1 or the 2nd steel pipe piling 2.
Utilizability in industry
According to the present invention, it may be possible to provide the joint structure of following steel pipe piling, the joint of this steel pipe piling be configured in the plate of the tip side that can reduce outer end and interior embedding end thick and while suppressing the rising of material cost, prevent the bending deformation of the most thin section of tip side.
Description of reference numerals
1: the 1 steel pipe piling; 2: the 2 steel pipe pilings; 3: outer end; 30: outer most thin section; 31: outer mountain portion; 32: outer caulking groove portion; 33: outer valley; 34: outer top end face; 35: outer base end face; 36: outer counterpart; 37: outer gap; 4: outer section portion; 41: the 1 outer section of portion; 42: the 2 outer sections of portions; 43: the 3 outer sections of portions; 44: the 4 outer sections of portions; 45: outer remaining long portion; 5: interior embedding end; 50: interior embedding most thin section; 51: interior embedding mountain portion; 52: interior caulking groove portion; 53: interior embedding valley; 54: interior embedding top end face; 55: interior embedding base end face; 56: interior embedding counterpart; 57,157: interior embedding gap; 6: interior embedding section of portion; Embedding section of portion in 61: the 1; Embedding section of portion in 62: the 2; Embedding section of portion in 63: the 3; Embedding section of portion in 64: the 4; 65: interior embedding remaining long portion; 7,107,207,307,407: the joint structure of steel pipe piling; 8: bearing surface; 81: tensile side bearing surface; 86: compressed side bearing surface; P: keyway; W: circumference; X: axle center orthogonal directions; Y: axis direction.
Claims (6)
1. the joint structure of a steel pipe piling, coaxially links the 1st steel pipe piling and the 2nd steel pipe piling, and the joint structure of described steel pipe piling is characterised in that to possess:
It is arranged at described 1st steel pipe piling and the bearing of trend along the 1st axle center of described 1st steel pipe piling is formed with the outer end in multiple outer section of portion; With
It is arranged at described 2nd steel pipe piling and the bearing of trend along the 2nd axle center of described 2nd steel pipe piling is formed with embedding end in multiple interior embedding section of portion,
Each outer section of portion in described multiple outer section of portion possesses:
Outer mountain portion, it is given prominence to along the direction towards described 1st axle center, and is formed multiple in the circumference centered by described 1st axle center;
Outer caulking groove portion, it is formed between each described outer mountain portion adjacent one another are; And
Outer valley, itself and each described outer mountain portion adjoin and are formed at the base end side near described 1st steel pipe piling,
In each in described multiple interior embedding section of portion, embedding section of portion possesses:
Interior embedding mountain portion, it is given prominence to along the direction away from described 2nd axle center, and is formed multiple in the circumference centered by described 2nd axle center;
Interior caulking groove portion, it is formed between each described interior embedding mountain portion adjacent one another are;And
Interior embedding valley, itself and each described interior embedding mountain portion adjoin and are formed at the base end side near described 2nd steel pipe piling,
In described multiple outer section of portion, near outer section of portion of described 1st steel pipe piling, then the plate of described outer valley is thick is formed more big,
In described multiple interior embedding section of portion, embedding section of portion in described 2nd steel pipe piling, then the plate of described interior embedding valley is thick is formed more big,
When making the described outer end of insertion, described interior embedding end and relatively rotate and be fitted together to, the interior embedding top end face of the tip side of described interior embedding end separates predetermined distance of separation D with the phase opposite of this interior embedding top end face,
In bearing surface against each other between described multiple outer section of portion and described multiple interior embedding section of portion, the total area of the tensile side bearing surface of burden drawing force is the area of the outer top end face of the tip side of the described outer end adding up to below area, described total area to be burden force of compression as follows and the total area of the total area of the compressed side bearing surface of burden force of compression.
2. the joint structure of steel pipe piling according to claim 1, it is characterised in that,
The total area of described tensile side bearing surface is below the total area of described compressed side bearing surface.
3. the joint structure of steel pipe piling according to claim 1, it is characterised in that,
Described joint structure is set to, in nearest apart from the tip side of described interior embedding end in the described interior embedding mountain portion in embedding section of portion, projecting height on direction towards described 2nd axle center is being defined as h, when length on the bearing of trend in described 2nd axle center is defined as l, described predetermined distance of separation D meets following formula (1)
D��(h2+l2)0.5-l formula (1).
4. the joint structure of steel pipe piling according to claim 1, it is characterised in that,
The projecting height in the described interior embedding mountain portion in described multiple interior embedding section of portion each other and the projecting height in the described outer mountain portion in described multiple outer section of portion each other at least one party roughly the same.
5. the joint structure of steel pipe piling according to any one of Claims 1 to 4, it is characterised in that,
The described phase opposite of described interior embedding top end face is the outer base end face of the described base end side of described outer end.
6. the joint structure of steel pipe piling according to any one of Claims 1 to 4, it is characterised in that,
The described phase opposite of described interior embedding top end face is the end face of described 1st steel pipe piling.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-252957 | 2013-12-06 | ||
| JP2013252957 | 2013-12-06 | ||
| PCT/JP2014/082168 WO2015083807A1 (en) | 2013-12-06 | 2014-12-04 | Joint structure for steel pipe pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105658876A true CN105658876A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480057909.9A Pending CN105658876A (en) | 2013-12-06 | 2014-12-04 | Joint structure for steel pipe pile |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JP6202102B2 (en) |
| KR (1) | KR101879964B1 (en) |
| CN (1) | CN105658876A (en) |
| AU (1) | AU2014358146B2 (en) |
| HK (1) | HK1223992A1 (en) |
| MY (1) | MY180215A (en) |
| PH (1) | PH12016500755A1 (en) |
| SG (1) | SG11201601933PA (en) |
| TW (1) | TWI623670B (en) |
| WO (1) | WO2015083807A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338791A (en) * | 2017-07-05 | 2017-11-10 | 汤始建华建材（苏州）有限公司 | A kind of novel tubular pile sub-assembly |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105887808A (en) * | 2016-05-31 | 2016-08-24 | 浙江工业大学 | Concrete pipe pile and construction method thereof |
| KR101885528B1 (en) * | 2017-12-14 | 2018-09-10 | 도원산업(주) | Bolt-less device for connecting phc piles |
| CN110090415A (en) * | 2018-01-29 | 2019-08-06 | 锦美运动用品（东莞）有限公司 | multi-section combined bat structure |
| US11519149B2 (en) | 2019-02-12 | 2022-12-06 | Giken Ltd. | Pile joint, pile coupling structure, and pile coupling method |
| CA3045359C (en) | 2019-04-19 | 2024-05-21 | Trinity Products, Llc | Fittings for joining lengths of pipe by a press-fit connection and pipe assembly formed using same |
| CN111395326A (en) * | 2020-03-31 | 2020-07-10 | 安徽建筑大学 | Connecting structure between adjacent pile sections of thin-walled tubular pile |
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| JP2004293035A (en) * | 2003-03-25 | 2004-10-21 | Jfe Steel Kk | Joint structure of steel pipe |
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| CN202945601U (en) * | 2012-10-25 | 2013-05-22 | 国鼎(南通)管桩有限公司 | Thin-wall steel tube centrifugal concrete (TSC) and prestress high concrete (PHC) combined pile |
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| JP3755966B2 (en) * | 1997-07-29 | 2006-03-15 | 株式会社クボタ | Pile joint structure |
| JP3877746B2 (en) * | 2005-06-17 | 2007-02-07 | 株式会社クボタ | Pile joint structure |
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2014
- 2014-12-04 TW TW103142145A patent/TWI623670B/en active
- 2014-12-04 SG SG11201601933PA patent/SG11201601933PA/en unknown
- 2014-12-04 CN CN201480057909.9A patent/CN105658876A/en active Pending
- 2014-12-04 KR KR1020167010198A patent/KR101879964B1/en active IP Right Grant
- 2014-12-04 WO PCT/JP2014/082168 patent/WO2015083807A1/en active Application Filing
- 2014-12-04 MY MYPI2016701119A patent/MY180215A/en unknown
- 2014-12-04 AU AU2014358146A patent/AU2014358146B2/en active Active
- 2014-12-04 JP JP2015551567A patent/JP6202102B2/en active Active
-
2016
- 2016-04-22 PH PH12016500755A patent/PH12016500755A1/en unknown
- 2016-10-25 HK HK16112254.8A patent/HK1223992A1/en unknown
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|---|---|---|---|---|
| JPH1143936A (en) * | 1997-07-29 | 1999-02-16 | Kubota Corp | Pile coupling part structure |
| JP2004293035A (en) * | 2003-03-25 | 2004-10-21 | Jfe Steel Kk | Joint structure of steel pipe |
| CN102812280A (en) * | 2009-12-23 | 2012-12-05 | Ihc荷兰Ie公司 | Coupling For The Releasable Coupling Of Pipes |
| CN202945601U (en) * | 2012-10-25 | 2013-05-22 | 国鼎(南通)管桩有限公司 | Thin-wall steel tube centrifugal concrete (TSC) and prestress high concrete (PHC) combined pile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107338791A (en) * | 2017-07-05 | 2017-11-10 | 汤始建华建材（苏州）有限公司 | A kind of novel tubular pile sub-assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2014358146A1 (en) | 2016-04-28 |
| PH12016500755B1 (en) | 2016-05-30 |
| JP6202102B2 (en) | 2017-09-27 |
| SG11201601933PA (en) | 2016-04-28 |
| HK1223992A1 (en) | 2017-08-11 |
| JPWO2015083807A1 (en) | 2017-03-16 |
| PH12016500755A1 (en) | 2016-05-30 |
| WO2015083807A1 (en) | 2015-06-11 |
| KR20160058165A (en) | 2016-05-24 |
| MY180215A (en) | 2020-11-25 |
| KR101879964B1 (en) | 2018-07-18 |
| AU2014358146B2 (en) | 2017-01-05 |
| TW201533299A (en) | 2015-09-01 |
| TWI623670B (en) | 2018-05-11 |
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