KR20170105778A - Prestressed concrete-steel composite pile, form of prestressed concrete-steel composite pile and construction method using same - Google Patents

Prestressed concrete-steel composite pile, form of prestressed concrete-steel composite pile and construction method using same Download PDF

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KR20170105778A
KR20170105778A KR1020160028853A KR20160028853A KR20170105778A KR 20170105778 A KR20170105778 A KR 20170105778A KR 1020160028853 A KR1020160028853 A KR 1020160028853A KR 20160028853 A KR20160028853 A KR 20160028853A KR 20170105778 A KR20170105778 A KR 20170105778A
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pile
concrete
steel pipe
steel
prestressed concrete
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KR1020160028853A
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KR101847904B1 (en
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김성환
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(주)에스앤제이케이
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    • 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
    • E02D5/24—Prefabricated piles
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/76—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/18—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members for the production of elongated articles
    • 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
    • E02D5/58—Prestressed concrete piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0007—Production methods using a mold

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical 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

The prestressed concrete-steel composite pile according to the present invention comprises: a pile 100 formed of a hollow concrete; A steel pipe 200 coupled to the inner hollow surface of the pile 100; A plurality of tensions 300 coupled within the file 100 along the length of the file 100 to be tense in the longitudinal direction of the file 100; And a reinforcing bar 400 coupled to the inside of the file.
In the prestressed concrete-steel composite pile according to the present invention, since the steel pipe 200 is coupled to the inside of the pile formed of the hollow concrete, the compressive strength, shear strength and bending strength are improved. Therefore, it is possible to introduce the tensile force of the tension member more than the prestressed concrete pile based on the same cross section. In addition, when the same load is supported, the load can be supported with a smaller cross-sectional area than the prestressed concrete pile.

Description

[0001] DESCRIPTION [0002] PRESTRESSED CONCRETE-STEEL COMPOSITE PILE, FORM OF PRESTRESSED CONCRETE-STEEL COMPOSITE PILE AND CONSTRUCTION METHOD USING SAME [0003] Technical Field [0004] [1] The present invention relates to a prestressed concrete-

More particularly, the present invention relates to a prestressed concrete-steel composite file, a prestressed concrete-steel composite file form, and a prestressed concrete-steel composite file using the same.

Typically, a prestressed concrete hollow file is produced by installing a prestressed concrete hollow formwork along the floor, placing a tension material inside the formwork, introducing a tensile force into the tension material, and then pouring the concrete.

After the concrete is poured, the concrete is cured by rotating the form along the axial direction of the mold while the tensile force is maintained in the tension material, and the compressive force is introduced into the concrete file by removing the tensile force introduced into the tension material.

The concrete poured into the formwork is cured to have a certain thickness along the outer surface of the form by rotation of the form to form a hollow section.

Therefore, in order to manufacture an existing prestressed concrete hollow file, a large power unit for rotating a form at a constant rotation speed is required, and a large space is required for installing a file form and a power unit.

Korean Patent No. 10-2015-0075404 " PHC pile-steel sheet pile joining connector for suppressing lateral clearance and facilitating centering operation, and PHC pile-steel pile integrated pile thereof " The centering of the PHC pile and the center of the steel pipe pile can be accurately and easily carried out while positioning the steel pipe pile on the pile and forming the composite pile together, The present invention also relates to a "composite pile" which is formed integrally with a PHC pile and a steel pipe pile using joining connectors for preventing movement of the pile, and further, a solid integration with the concrete foundation can be achieved.

Korean Patent No. 10-2014-0143013 discloses a composite pile composed of a pile and a steel pipe file. The present invention relates to a pile of a pile of pile cement which increases the resistance to horizontal force acting on the outside by combining reinforcing bars and concrete on the inside of a steel pipe pile PHC pile) and a steel pipe file. The conventional compound file requires a separate joint reinforcing member to be combined with the steel pipe file and the picci file. This increases the cost and the difficulty of combining. In order to solve the problem, And a steel pipe file, wherein the composite file has a through hole formed at the center thereof and is connected to the lower side of the steel pipe file; Wherein the vertical reinforcing bars and the horizontal reinforcing bars are welded to a lower surface of the steel pipe, a plurality of vertical reinforcing bars and horizontal reinforcing bars are inserted in the inner side, and the steel reinforcing bars are fixedly joined by the second concrete layer. And a steel pipe file. Therefore, according to the present invention, a plurality of vertical reinforcing bars and horizontal reinforcing bars are inserted into a steel pipe file to form a concrete layer, thereby reducing the thickness of the steel pipe pile, thereby reducing the manufacturing cost and increasing the strength of the steel pipe pile So that the resistance against the horizontal force acting on the outside can be increased. Further, since it is not necessary to additionally prepare a separate load transmitting member in the vertical axis acting on the steel pipe file, the manufacturing cost and the assembly cost can be reduced, and the manufacturing process can be made easier by joining the outer circumferential surface easily and firmly There is an advantage to be eliminated.

Korean Patent No. 10-2013-0017310 " Tension-material-saving steel composite pile and method for manufacturing the same, which is a composite of a prestressed hollow concrete pile and a steel pipe ", discloses that steel tubes are integrally formed on the outer surface of a prestressed hollow concrete pile In the section where the steel pipe is synthesized, it is synthesized and prefabricated in the factory. By minimizing or omitting the arrangement of the tensions in the concrete pile, it is possible to improve the economical efficiency of the pile by reducing the amount of the tension material. The present invention relates to a composite steel pile having a tongue-saving effect, which is a composite of a prestressed hollow concrete pile and a steel pipe with improved bending stiffness of the pile, and a manufacturing method for efficiently and economically manufacturing such a steel composite pile.

Korean Patent No. 10-2014-0143013, Korean Patent No. 10-2014-0143013 and Korean Patent No. 10-2013-0017310 all disclose a method of manufacturing a prestressed concrete pile (PHC pile) and a steel pipe file (steel pipe pile) along a longitudinal direction of a pile This is a technique relating to a coupling portion.

The above-mentioned prior art reference numerals are used only in the description of the prior art.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a prestressed concrete-steel composite file which can be manufactured in a narrow manufacturing space without rotating a mold during manufacturing prestressed concrete- This paper presents a method for manufacturing a concrete - steel composite pile form and a prestressed concrete - steel composite pile using the same.

In order to solve the above-mentioned problems, the prestressed concrete-steel composite pile of the present invention comprises: a pile 100 formed of a hollow concrete; A closure member (110) coupled to both ends of the pile (100); A steel pipe 200 coupled to the closure member 110 and coupled to an inner hollow surface of the pile 100; A plurality of tensions 300 coupled within the pile 100 along the length of the pile 100 to tense the length of the pile 100; And a reinforcing bar 400 coupled to the inside of the file.

The concrete 600 for forming the pile 100 is preferably made of concrete having a compressive strength of 60 to 100 MPa.

The thickness of the steel pipe 200 is preferably 3 mm to 20 mm.

It is preferable that the tension member 300 is any one of a steel wire, a strand wire, and a steel wire rod.

The reinforcing bar 400 may include a spiral reinforcing bar 410 formed to surround the outside of the tension member 300.

And a shear connection member 210 is formed on the outer circumferential surface of the steel pipe 200 so as to be inserted and fixed in the pile 100.

A mold 500 for manufacturing a prestressed concrete-steel composite pile 10 according to an embodiment of the present invention includes a pair of side molds 510a and 510b surrounding an outer circumferential surface of the pile 100; A steel pipe joint part 522 which is coupled to at least one end of the pair of side molds 510a and b and is inserted into the inner circumferential surface of the end of the steel pipe 200 is connected to the lid body 520 The cover main body portion 521 is formed with a tension member fixing hole 521a through which the tension member 300 passes.

The side molds 510a and 510b have a body 511 formed to surround the outer circumference of the pile 100; A reinforcing portion 512 disposed at a distance from each other in the longitudinal direction of the main body portion 511 and coupled to the outer peripheral surfaces of the side molds 510a and 510b; A longitudinal reinforcing portion 513 provided in the interval between adjacent reinforcing portions 512 and coupled in the longitudinal direction of the body portion 511; And a coupling portion 514 formed on both sides of the body portion 511 in the longitudinal direction to couple the side molds 510a and 510b in a pair.

A method of manufacturing a prestressed concrete-steel composite pile using a prestressed concrete-steel composite pile form according to an embodiment of the present invention is characterized in that a lower side mold (510a) of the pair of side molds (510) Installation phase; A steel pipe joining step of joining the steel pipe 200 to the inside of the lower side mold 510a; A reinforcing bar disposing step of disposing the reinforcing bars 400 on the outer circumference of the steel pipe 200; A tension re-installation step of installing the tension member (300) between the steel pipe (200) and the reinforcing bar (400); A closure member installing step of installing the closure member 110; Joining the upper side die (510b) and the lid (520); A tensioning step of introducing a tensile force to the tension member (300) using the tension device (A); A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a and b and the steel pipe 200 by using a concrete pouring part 515 formed in the upper side pouring mold 510b; A concrete curing step of curing the concrete (600); And a tensional force introduction step of removing the tensile force introduced into the tension member 300 to introduce a tension force into the pile 100.

A prestressed concrete-steel composite file is produced which is produced by a prestressed concrete-steel composite pile manufacturing method.

The method for manufacturing a prestressed concrete-steel composite pile using a prestressed concrete-steel composite pile form according to another embodiment of the present invention includes the steps of installing a lower end member of the finishing member 110; A steel pipe installing step of installing the steel pipe 200; Placing the reinforcing bars (400) on the outside of the steel pipe (200); A tension re-installation step of installing the tension member (300) in a space between the steel pipe (200) and the reinforcing bar (400); A side mold installing step of installing the pair of side molds (510a, b) so as to stand up; A tensioning step of introducing a tensile force to the tension member (300) using the tension device (A); A lid attaching step of attaching an upper closure member of the closure member 110 and fixing the lid 520 to the pair of side molds 510; A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a and b and the steel pipe 200 by using a concrete charging part 523 formed on the cover 520; A concrete curing step of curing the concrete (600); And a tensional force introduction step of removing the tensile force introduced into the tension member 300 to introduce a tension force into the pile 100.

A prestressed concrete-steel composite file produced by the method of manufacturing a prestressed concrete-steel composite pile of the present invention is presented.

Since the prestressed concrete-steel composite pile formwork of the present invention is assembled using a pair of side piles and a cover, it is easy to assemble and disassemble the formwork.

The method of manufacturing a prestressed concrete-steel composite pile using the mold according to the present invention does not require a manufacturing step of forming a hollow section by rotating the formwork, so that a separate rotating device is not required, Since the concrete-steel composite pile is manufactured, it is possible to manufacture in a small manufacturing space.

1 is a perspective view of a joint connector according to Korean Patent No. 10-2015-0075404.
Fig. 2 is a view showing a process of joining joints according to Korean Patent No. 10-2015-0075404.
Fig. 3 is a view showing a process of joining a picocice file and a steel pipe file according to Korean Patent No. 10-2014-0143013.
FIG. 4 is an enlarged view of a combined portion of a picocice file and a steel pipe file according to Korean Patent No. 10-2014-0143013.
5 is a perspective view of a steel composite pile according to Korean Patent No. 10-2013-0017310.
Fig. 6 is a process diagram of a lid member according to Korean Patent No. 10-2013-0017310.
7 is a perspective view of a prestressed concrete-steel composite file according to an embodiment of the present invention.
8 is a perspective view of a side mold according to an embodiment of the present invention;
9 is a perspective view of a lid according to an embodiment of the present invention;
10 is a side view of a lid according to an embodiment of the present invention.
11 is a perspective view of a steel pipe according to an embodiment of the present invention.
12 is a perspective view of a base plate according to an embodiment of the present invention;
FIG. 13 is a process diagram of a side mold installation step and a steel pipe installation step according to an embodiment of the present invention; FIG.
FIG. 14 is a process diagram of a rebar disposing step according to an embodiment of the present invention; FIG.
15 is a process diagram of a step of installing a tensile material according to an embodiment of the present invention;
16 is a process chart for installing an upper closure member according to an embodiment of the present invention.
17 is a process flow diagram of a tensile material tensile process according to an embodiment of the present invention.
18 is a process diagram of a tensional force introduction step according to an embodiment of the present invention.
19 is a process flow diagram of a tensional force introduction step according to an embodiment of the present invention.
20 is a perspective view of a lower side and an upper side side mold according to another embodiment of the present invention.
FIG. 21 is a process diagram of a tensile stressing step according to another embodiment of the present invention. FIG.
22 is a process chart showing a curing step and a torsional force introduction step according to still another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a prestressed concrete-steel composite pile, a prestressed concrete-steel composite pile form and a prestressed concrete-steel composite pile manufacturing method according to the present invention will be described in detail with reference to the accompanying drawings, In the following description, the same or corresponding components are denoted by the same reference numerals, and redundant description thereof will be omitted.

It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.

In addition, the term " coupled " is used not only in the case of direct physical contact between the respective constituent elements in the contact relation between the constituent elements, but also means that other constituent elements are interposed between the constituent elements, Use them as a concept to cover each contact.

Hereinafter, a prestressed concrete-steel composite pile, a prestressed concrete-steel composite pile form, and a prestressed concrete-steel composite pile according to an embodiment of the present invention will be described in detail with reference to the accompanying tables and drawings .

The prestressed concrete-steel composite pile according to the present invention comprises: a pile 100 formed of a hollow concrete; A closing member 110 coupled to both ends of the file 100; A steel pipe 200 coupled to the closure member 110 and coupled to the inner hollow surface of the pile 100; A plurality of tensions 300 coupled within the file 100 along the length of the file 100 to be tense in the longitudinal direction of the file 100; And a reinforcing bar 400 coupled to the inside of the file.

In this case, the prestressed concrete-steel composite pile is improved in compressive strength, shear strength and bending strength since the steel pipe 200 is coupled to the inside of the pile formed with the hollow concrete.

Therefore, it is possible to introduce the tensile force of the tension member more than the prestressed concrete pile based on the same cross section.

Further, when the same load is supported, the same load can be supported with a smaller cross-sectional area than the prestressed concrete pile.

The concrete 600 for forming the pile 100 is preferably made of concrete having a compressive strength of 60 to 100 MPa.

In this case, it is possible to manufacture a prestressed concrete-steel composite pile having high rigidity by using high-strength concrete.

The thickness of the steel pipe 200 is preferably 3 mm to 20 mm.

It is preferable that the tensile material 300 is any one of a steel wire, a strand wire, and a steel wire rod.

In this case, steel wires, stranded wires or steel rods are used depending on the size, load and support conditions of the prestressed concrete-steel composite piles.

Preferably, the reinforcing bar 400 includes a spiral reinforcing bar 410 formed to surround the outside of the tension member 300.

In this case, the reinforcing bars are coupled in a structure that surrounds the outside of the tensile member 300 to suppress deformation in the direction perpendicular to the axial direction with respect to the axial load of the pile.

It is preferable that the shear connection member 210 is formed on the outer circumferential surface of the steel pipe 200 so as to be inserted and fixed in the pile 100.

In this case, the shear connection member is formed of stud bolt, steel or steel bar, or shear bolt joined to penetrate the steel pipe from the inner circumferential surface of the steel pipe toward the outer circumferential surface of the steel pipe.

The prestressed concrete-steel composite file building mold according to an embodiment of the present invention includes a pair of side molds 510a and 510b surrounding the outer circumference of the pile 100; A cover 520 which is coupled to at least one end of the pair of side molds 510a and 510b and in which a steel pipe fitting portion 522 inserted into the end surface of the end portion of the steel pipe 200 is projectingly engaged with the cover main body portion 521; And a cover body portion 521 is formed with a tension member fixing hole 521a through which the tension member 300 passes.

In this case, since the formwork is combined with a pair of side formwork and cover, it is easy to install and dismantle the formwork.

In addition, since the lid has the steel pipe fitting portion 522 for fixing the steel pipe, it is possible to fix the steel pipe only by joining the pair of side molds and the lid.

The side molds 510a, b include a body 511 formed to surround the outer circumference of the pile 100; A reinforcing portion 512 which is disposed at a distance from each other in the longitudinal direction of the body portion 511 and is coupled to the outer peripheral surface of the side molds 510a and 510b; A longitudinal reinforcing portion 513 provided in a section between neighboring reinforcing portions 512 and coupled in the longitudinal direction of the main body portion 511; And a coupling portion 514 formed on both sides of the body portion 511 in the longitudinal direction to couple the side molds 510a and 510b in a pair.

In this case, since the reinforcing portion 512 and the longitudinal reinforcing portion 513 are formed in the side mold, the engaging portion 514 is formed to have an excellent rigidity and to bolt-join the pair of side molds. It is easy to install and dismantle.

A method of manufacturing a prestressed concrete-steel composite pile using a prestressed concrete-steel composite pile form according to an embodiment of the present invention includes the steps of forming a lower side pile 510a of a pair of side piles 510 step; A steel pipe joining step of joining the steel pipe 200 to the inside of the lower side mold 510a; A reinforcing bar disposing step of disposing the reinforcing bar (400) on the outer circumference of the steel pipe (200); A tension re-installation step of installing a tension member (300) between the steel pipe (200) and the reinforcing bar (400); A closure member installing step of installing the closure member 110; Joining the side mold (510b) and the cover (520); A tensioning step of introducing a tensile force to the tension member 300 using the tension device A; A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a, b and the steel pipe 200 by using the concrete pouring part 515 formed in the side mold 510b; A concrete curing step curing the concrete (600); And a tension force introducing step of removing a tensile force introduced into the tensile material 300 to introduce a tensile force into the file 100.

In this case, the mold is installed along the ground, and a concrete pipe is filled with a concrete pouring portion 515 formed on the upper side mold after installing a steel pipe, a reinforcing bar and a tension member.

The method for manufacturing a prestressed concrete-steel composite pile using a prestressed concrete-steel composite pile form according to another embodiment of the present invention includes the steps of installing a lower end member of the pile 110; A steel pipe installation step of installing a steel pipe (200); Placing a reinforcing bar (400) on the outside of the steel pipe (200); A tension re-installation step of installing a tension member (300) in a space between the steel pipe (200) and the reinforcing bar (400); A side mold installation step in which a pair of side molds 510a, b are installed so as to stand up; A tensioning step of introducing a tensile force to the tension member 300 using the tension device A; A lid attaching step of providing an upper closure member among the lid members 110 and fixing the lid 520 to the pair of side molds 510; A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a, b and the steel pipe 200 by using the concrete charging part 523 formed on the cover 520; A concrete curing step curing the concrete (600); And a tension force introducing step of removing a tensile force introduced into the tensile material 300 to introduce a tensile force into the file 100.

In this case, the prestressed concrete-steel composite pile of the present invention is manufactured by setting up the form.

At this time, the pair of side molds are coupled to the upper surface of the support plate 530.

The steel pipe 200 coupled to the inside of the pair of side molds can be utilized as an inner mold, and a hollow prestressed concrete-steel composite file can be manufactured without a separate inner mold.

In addition, since the prestressed concrete-steel composite pile formwork of the present invention is excellent in rigidity, it is possible to fix the prestressed material to the lid after the prestressing step and to resist the prestressing force only by the form stiffness.

The concrete filling is performed by using the filling hole 111 of the upper closing member formed at the same position as the position of the concrete filling portion 523 and the concrete filling portion.

A prestressed concrete-steel composite file produced by a method of manufacturing a prestressed concrete-steel composite file according to an embodiment of the present invention is presented.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It is to be understood that both the technical idea and the technical spirit of the invention are included in the scope of the present invention.

A: Tension device 100: File
200: Steel pipe 210: Shear connector
300: tensile material 310:
400: reinforcing bar 410: spiral reinforcing bar
500: die 510: side die
511: main body part 512: reinforcement part
513: longitudinal reinforcing portion 514:
520: lid 521: lid body part
521a: tension member fixing hole 522: steel pipe fitting part
530: Support plate 600: Concrete

Claims (12)

A file 100 formed of hollow concrete;
A closure member (110) coupled to both ends of the pile (100);
A steel pipe 200 coupled to the closure member 110 and coupled to an inner hollow surface of the pile 100;
A plurality of tensions 300 coupled within the pile 100 along the length of the pile 100 to tense the length of the pile 100;
And a reinforcing bar (400) coupled to the inside of the file.
The method according to claim 1,
Wherein the concrete (600) for forming the pile (100) is made of concrete having a compressive strength of 60 to 100 MPa.
3. The method of claim 2,
Wherein the thickness of the steel pipe (200) is 3 mm to 20 mm.
The method of claim 3,
Wherein the prestressing material (300) is one of a steel wire, a strand, or a steel bar.
5. The method of claim 4,
Characterized in that the reinforcing bars (400) comprise spiral reinforcing bars (410) formed to surround the exterior of the prestressing material (300).
6. The method of claim 5,
And a shear connection member (210) is formed on an outer circumferential surface of the steel pipe (200) so as to be inserted and fixed in the pile (100).
A formwork (500) for making a prestressed concrete-steel composite pile (10) according to any one of claims 1 to 6,
A pair of side molds 510a and 510b surrounding the outer circumference of the file 100;
A steel pipe joint part 522 which is coupled to at least one end of the pair of side molds 510a and b and is inserted into the inner circumferential surface of the end of the steel pipe 200 is connected to the lid body 520 ), ≪ / RTI >
Wherein the lid body portion (521) is formed with a tension material fixing hole (521a) through which the tension member (300) passes.
8. The method of claim 7,
The side molds (510a, b)
A main body 511 formed to surround the outer circumference of the file 100;
A reinforcing portion 512 disposed at a distance from each other in the longitudinal direction of the main body portion 511 and coupled to the outer peripheral surfaces of the side molds 510a and 510b;
A longitudinal reinforcing portion 513 provided in the interval between adjacent reinforcing portions 512 and coupled in the longitudinal direction of the body portion 511;
And a coupling part (514) longitudinally formed on both sides of the body part (511) to couple the side molds (510a, b) to each other. .
A method of manufacturing a prestressed concrete-steel composite pile using the prestressed concrete-steel composite pile form according to claim 7,
A lower side mold installation step of installing a lower side mold 510a of the pair of side molds 510;
A steel pipe joining step of joining the steel pipe 200 to the inside of the lower side mold 510a;
A reinforcing bar disposing step of disposing the reinforcing bars 400 on the outer circumference of the steel pipe 200;
A tension re-installation step of installing the tension member (300) between the steel pipe (200) and the reinforcing bar (400);
A closure member installing step of installing the closure member 110;
Joining the upper side die (510b) and the lid (520);
A tensioning step of introducing a tensile force to the tension member (300) using the tension device (A);
A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a and b and the steel pipe 200 using a concrete pouring part 515 formed in the upper side pouring mold 510b;
A concrete curing step of curing the concrete (600); And
And introducing a tensioning force to the pile (100) by removing the tensile force introduced into the prestressing material (300).
A prestressed concrete-steel composite file, characterized in that it is produced by the method of manufacturing a prestressed concrete-steel composite pile of claim 9.
A method of manufacturing a prestressed concrete-steel composite pile using the prestressed concrete-steel composite pile form according to claim 7,
A closure member installing step of installing a lower closure member of the closure member 110;
A steel pipe installing step of installing the steel pipe 200;
Placing the reinforcing bars (400) on the outside of the steel pipe (200);
A tension re-installation step of installing the tension member (300) in a space between the steel pipe (200) and the reinforcing bar (400)
A side mold installing step of installing the pair of side molds (510a, b) so as to stand up;
A tensioning step of introducing a tensile force to the tension member (300) using the tension device (A);
A lid attaching step of attaching an upper closure member of the closure member 110 and fixing the lid 520 to the pair of side molds 510;
A concrete filling step of filling the concrete 600 in a space between the pair of side molds 510a and b and the steel pipe 200 by using a concrete charging part 523 formed on the cover 520;
A concrete curing step of curing the concrete (600); And
And introducing a tensioning force into the pile (100) by removing the tensile force introduced into the prestressing material (300).
A prestressed concrete-steel composite file, characterized in that it is produced by the method of manufacturing a prestressed concrete-steel composite pile according to claim 11.
KR1020160028853A 2016-03-10 2016-03-10 Prestressed concrete-steel composite pile, form of prestressed concrete-steel composite pile and construction method using same KR101847904B1 (en)

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CN110341033A (en) * 2019-07-04 2019-10-18 福建省大地管桩有限公司 The manufacturing process of pressure-resistant cracking resistance tubular pole
CN110387878A (en) * 2019-08-02 2019-10-29 绍兴市上虞舜江管桩有限公司 A kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation
KR20210062825A (en) * 2019-11-22 2021-06-01 가온쏠라 주식회사 Foundation work method for installation of prop of solar power device

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KR101203627B1 (en) * 2011-10-28 2012-11-21 안창일 Composite pile connected inner connecting member and composite construction method using the same
KR101465480B1 (en) * 2013-06-07 2014-11-26 (주)에스앤씨산업 Prestressed Steel and Concrete Composite pile construction methods

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Publication number Priority date Publication date Assignee Title
CN110341033A (en) * 2019-07-04 2019-10-18 福建省大地管桩有限公司 The manufacturing process of pressure-resistant cracking resistance tubular pole
CN110341033B (en) * 2019-07-04 2021-04-27 福建省大地管桩有限公司 Manufacturing process of pressure-resistant anti-cracking tubular pile
CN110387878A (en) * 2019-08-02 2019-10-29 绍兴市上虞舜江管桩有限公司 A kind of anti-corrosion mixed mud precast square pile preparation process of internal layer impermeabilisation
CN110387878B (en) * 2019-08-02 2021-07-13 绍兴市上虞舜江管桩有限公司 Preparation process of inner-layer permeation-resistant corrosion-resistant concrete prefabricated square pile
KR20210062825A (en) * 2019-11-22 2021-06-01 가온쏠라 주식회사 Foundation work method for installation of prop of solar power device

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