KR101168167B1 - A reinforcement structure of a concrete pile head and its executing procedure - Google Patents
A reinforcement structure of a concrete pile head and its executing procedure Download PDFInfo
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- KR101168167B1 KR101168167B1 KR1020090079511A KR20090079511A KR101168167B1 KR 101168167 B1 KR101168167 B1 KR 101168167B1 KR 1020090079511 A KR1020090079511 A KR 1020090079511A KR 20090079511 A KR20090079511 A KR 20090079511A KR 101168167 B1 KR101168167 B1 KR 101168167B1
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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
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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
- E02D5/223—Details of top sections of foundation piles
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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
- E02D5/226—Protecting piles
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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
- E02D5/60—Piles with protecting cases
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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Abstract
본 발명은 기초철근 배근시 간섭이 없고, 말뚝의 내경이 일정치하지 않을 경우 전후좌우 이동 설치가 가능하며, 수평보강철근이 띠철근과 기초하부철근과 조합되어 기초콘트리트를 보강하여 펀칭을 막고 휨모멘트및 인발력에 저항하는 힘이 강한 콘크리트말뚝의 두부보강구조 및 그 시공방법에 관한 것이며, 상,하부가 개방되고 형성한 콘크리트말뚝(10)과; 콘크리트말뚝(10)에 삽입되고 가장자리에 다수개의 홀이 형성되어 다수개의 연결봉(21)에 의해 콘크리트말뚝(10) 상단에 걸려 고정되는 원형판(20); 지면 상부로 콘크리트말뚝(10) 둘레에 콘크리트가 타설되어 형성되는 버림콘크리트부(30); 콘크리트말뚝(10)의 상부로 배근되는 기초하부철근(40); 기초하부철근(40)의 상부에서 기초하부철근(40)과 연결 설치되는 원형의 띠철근(50); 수직 철근(61) 일측에 수평으로 수평보강철근(65)이 용접되고, 다수개의 수직철근(61)이 일정간격으로 콘크리트말뚝(10)의 내부로 삽입되면서 외향되는 수평보강철근(65)이 띠철근(50)과 결합되어 고정되며, 먼저 설치된 기초하부철근(40)과 수평보강철근(65)이 결합되어 기초콘크리트를 보강하는 보강철근(60); 콘크리트말뚝(10)의 내부와 버림콘크리트부(40)의 상부로 타설되어 상부구조물의 하중을 콘크리트말뚝(10)으로 분산시키는 기초콘트리트부(70);를 포함하여 구성되는 것을 특징으로 한다.The present invention has no interference when reinforcing the basic reinforcement, and if the inner diameter of the pile is not constant, it is possible to move forward and backward, left and right installation, horizontal reinforcing bar is combined with the band reinforcement and the base lower reinforcement to reinforce the foundation concrete to prevent punching and bending It relates to a head reinforcement structure and a construction method of the concrete piles strong against the moment and the pulling force, the concrete piles 10 formed by opening the upper and lower parts; A circular plate 20 inserted into the concrete pile 10 and having a plurality of holes formed at an edge thereof and fixed to the top of the concrete pile 10 by a plurality of connecting rods 21; Cast concrete portion 30 is formed by pouring concrete around the concrete pile 10 to the upper surface; Foundation lower reinforcement (40) to be reinforced to the top of the concrete pile (10); A circular band reinforcing bar 50 installed in connection with the base lower reinforcing bar 40 at an upper portion of the lower base reinforcing bar 40; Horizontal reinforcing bars 65 are welded horizontally to one side of the vertical reinforcing bars 61, and a plurality of vertical reinforcing bars 61 are inserted into the concrete pile 10 at regular intervals to be outwardly. Reinforcing bar 60 is fixed and coupled to the reinforcing bar 50, the base lower reinforcing bar 40 and the horizontal reinforcing bar 65 is first installed to reinforce the foundation concrete; It is characterized in that it comprises a ;; the concrete concrete portion 10 and the base concrete portion 70 is poured into the upper portion of the discarded concrete portion 40 to distribute the load of the upper structure to the concrete pile (10).
콘크리트말뚝, 원형판, 수평보강철근, 띠철근, 대구경띠철근 Concrete pile, round plate, horizontal reinforcing bar, band reinforcing bar, large diameter band reinforcing bar
Description
본 발명은 콘크리트말뚝의 두부보강구조 및 그 시공방법에 관한 것으로서, 더욱 상세하게는 토목, 건축구조물 기초하부에 위치하여 상부구조물의 각종 하중을 단단한 지반에 전달하기 위하여 주로 사용되는 콘크리트 말뚝의 두부보강에 관한 것으로 기초철근 배근시 간섭이 없고, 말뚝의 내경이 일정하지 않을 경우 전후좌우 이동 설치가 가능하며, 수평보강철근이 띠철근 및 기초하부철근과 각각 조합되어 기초콘트리트를 보강하여 펀칭을 막고 휨모멘트 및 인발력에 저항하는 힘이 강한 콘크리트말뚝의 두부보강구조 및 그 시공방법에 관한 것이다.The present invention relates to a head reinforcement structure of concrete piles and a construction method thereof, and more particularly, the head reinforcement of a concrete pile mainly used to transfer various loads of the upper structure to a solid ground under the groundwork of civil engineering and building structures. If there is no interference when reinforcing the basic reinforcement, and the inner diameter of the pile is not constant, it can be installed forward, backward, left and right, and the horizontal reinforcing bar is combined with the band reinforcing bar and the lower part of the reinforcing bar to reinforce the foundation concrete to prevent punching The present invention relates to a head reinforcement structure of concrete piles with strong resistance to moment and drawing force, and a construction method thereof.
토목, 건축구조물의 하중을 비교적 깊고, 배토량이 작고, 견고한 지반에 확실히 전달하기 위해서 많이 사용되는 말뚝의 두부보강에 관한 것으로 현재 십자보강판볼트식(덮개판+볼트식) 머리보강공법, 합성식(볼트+속채움콘크리트) 두부보강공법, U자형보강철근이용 공법(U자형보강철근+속채움콘크리트)등의 신기술이 있으며 이들이 주로 많이 사용되고 있다. 그러나 이들 공법은 공통적으로 보강철근이 기초하부철근 보다 먼저 시공되어지는 관계로 기초하부철근 배근 시 방해가 된다. 또한 규격배근의 품질관리가 어렵고, 볼팅 체결을 100% 전부 검측 할 수 없는 상황이며, 한다고 해도 많은 시간이 소요될 수 밖에 없다. 확실한 검측이 이루어 질 수없는 실정이다. The head reinforcement of piles (cover plate + bolts) is used to reinforce the piles, which are widely used to ensure the loads of civil engineering and building structures are relatively deep, and the amount of soil is applied to the ground firmly. (Bolt + Stuffed Concrete) There are new technologies such as tofu reinforcement method and U-shaped reinforcement method (U-shaped reinforcement + inner stuffed concrete). However, these methods commonly interfere with the reinforcement of the base reinforcement because the rebar is constructed before the base reinforcement. In addition, it is difficult to control the quality of the standard bar, and 100% of the bolting tightening can not be detected, even if it takes a lot of time. Reliable detection cannot be done.
일부 공법은 볼팅 체결을 위한 캡의 두께가 두꺼울 수밖에 없어 무겁고, 자재비가 고가이다.Some processes are heavy and expensive, because the cap for bolting is thick.
이들 공법은 일반적으로 508mm 강관말뚝두부보강 1본에 보강철근이 19mm 8가닥 들어가는데 최소 4-5가닥이 기초하부철근 배근에 방해를 준다. 강관말뚝이 여러 본 일 경우 그 방해는 더욱 심하다. 그러나 신기술이 아닌 말뚝두부보강 특허 중에 간섭제로인 공법들이 있지만 역학적인 측면과 자재, 시공, 품질관리 측면에서 꾸준히 연구 되어져야할 과제이기도 하다.These methods generally include 1 reinforcement of 19mm reinforcement in one 508mm steel pipe pile head reinforcement, with at least 4-5 strands obstructing the lower base reinforcement. In case of multiple saws in steel pipe pile, the interference is more severe. However, although there are some methods of zero interference among patents for pile tofu reinforcement that are not new technologies, it is also a subject that should be steadily studied in terms of mechanics, materials, construction and quality control.
이러한 문제를 해결하기 위하여 강관말뚝 두부 보강구조와 시공방법이 본 출원인에 의하여 개발되어 출원되어 특허 10-0877929호로 등록받았다. In order to solve this problem, the steel pipe pile head reinforcement structure and construction method were developed and filed by the present applicant and registered as patent 10-0877929.
특허 제0877929호에 기재된 바와 같이 상,하부가 개방되고 하부측 둘레에 다수개의 결합홀을 형성한 강관파일과; 상기 강관파일에 삽입되며 가장자리에 다수개의 홀을 형성한 보강원판과; 일측은 상기 보강원판에 형성된 홀에 삽입하여 너트에 의해 결합되고, 타측은 상기 강관파일의 상부 둘레에 걸림되어 강관파일의 내부 하측에 보강원판을 고정하는 고정부재와; 장방향의 일측에 고장력 볼트를 미리 용접하여 고장력 볼트의 일측을 상기 강관파일의 내측 결합홀에 삽입하고 강관파일의 내측에 수직으로 입설되는 다수개의 보강부재와; 상기 고장력 볼트가 강관파일의 결합홀에 삽입되기 전 고장력 볼트의 외주면에 삽입하여 보강부재가 강관파일의 내주연으로부터 일정간격 이격되도록 하는 원통형 링과; 제형(梯形, 사다리꼴)의 형상이며 짧은 변의 근방에는 삽입홀을 형성하고, 하부의 삽입홀과 짧은 변의 근방에는 너트를 용접하여 이루어진 다수개의 플레이트;를 포함하며, 보강부재의 끝단은 상기 보강원판에 면접되게 하고, 플레이트의 삽입홀은 상기 보강부재 및 보강부재의 사이마다 설치되는 보강철근에 삽입되어 플레이트가 강관파일의 둘레의 상단에 걸쳐지게 하되, 짧은 변이 강관파일의 내주연측으로 내향되게하고 너트에 나비볼트를 결합하여 나비볼트의 끝단이 보강부재의 일측에 닿게 함으로써 고정되는 것을 특징으로 하는 강관파일 두부보강 구조가 개발되었다.A steel pipe pile having upper and lower openings and a plurality of coupling holes formed around the lower side as described in Patent No. 0877929; A reinforcement disc inserted into the steel pipe pile and having a plurality of holes formed at edges thereof; One side is inserted into the hole formed in the reinforcement disk is coupled by a nut, the other side is fastened to the upper circumference of the steel pipe pile fixing member for fixing the reinforcement disk on the inner lower side of the steel pipe pile; A plurality of reinforcing members welded in advance to one side of the long direction to insert one side of the high tension bolt into the inner coupling hole of the steel pipe pile and vertically inserted into the inside of the steel pipe pile; A cylindrical ring inserted into the outer circumferential surface of the high tension bolt before the high tension bolt is inserted into the coupling hole of the steel pipe pile so that the reinforcing member is spaced apart from the inner circumference of the steel pipe pile by a predetermined distance; And a plurality of plates formed by welding a nut in the vicinity of the short side and the insertion hole in the vicinity of the short side and the shape of the formulation (trapezoidal), the end of the reinforcing member to the reinforcement disc And the insertion hole of the plate is inserted into the reinforcing bar installed between each of the reinforcing member and the reinforcing member so that the plate spans the upper end of the circumference of the steel pipe pile, and the short side is turned inward toward the inner circumferential side of the steel pipe pile and the nut Steel pipe pile head reinforcement structure has been developed by coupling the butterfly bolt to the end of the butterfly bolt to be fixed by contacting one side of the reinforcing member.
하지만 이러한 구조는 강관파일에 적합한 구조이고, 콘크리트말뚝에는 적용하기 어려운 점이 있었다.However, this structure is suitable for steel pipe piles, and it was difficult to apply to concrete piles.
콘크리트 말뚝의 경우, 종래에는 대부분 말뚝외부를 강선을 다치지 않게 커팅하여 기계로 콘크리트를 털어내고 계획선에 맞추어 강선을 자르고 말뚝 내부에 캡을 씌워 기초콘크리트를 타설하는 공법이 주로 사용되어 왔으며 현재도 하고 있다. 이는 기계가 콘크리트를 털어낼 때 말뚝두부 콘크리트가 손상을 쉽게 받으며 강선이 부러지는 등 많은 문제점을 안고 있다. 콘크리트 잔재처리가 불편하고, 근본적으로 품질관리에 문제가 많으나, 경제성이 있기 때문에 아직도 사용되고 있다. 그러나 최근 원컷팅공법이 널리 애용되고 있다. 이 공법은 손컷팅기로 강선까지 자르고 나서 기계로 흔들어 잔재를 제거한 다음 말뚝내부에 원형판을 매달아 넣고 철근다발을 집어넣거나, 원형판과 철근다발이 일체가된 캡을 넣고 기초하부철근배근 후 띠철근을 감고 상부기초철근 배근 후 기초콘크리트를 타설하는 신공법이 주종을 이루고 있다. In the case of concrete piles, most of the conventional methods have been used to cut the outside of the pile without injuring the steel wire, to shake off the concrete with a machine, cut the steel wire according to the planned line, and put the cap inside the pile to cast the foundation concrete. Doing. This has many problems such as pile head concrete is easily damaged when the machine shakes off the concrete and the steel wire is broken. Although it is inconvenient to treat concrete residues and there are many problems in quality control, it is still used because of its economic feasibility. However, the one-cutting method has been widely used recently. This method uses a hand cutter to cut the steel wire, shake it with a machine to remove the residue, and then hang the circular plate inside the pile and insert the reinforcing bar bundle, or put the cap of the circular plate and the reinforcing bar bundle together and wrap the reinforcing bar after the reinforcement The main method is to lay the foundation concrete after reinforcement of upper base reinforcement.
이들 신공법은 대부분 공장에서 철근 다발과 내부 원형판을 연결하여 통째로 현장까지 장거리 운반하는 관계로 부피가 커 운반비가 많이 들며, 현장에 설치 시 기초하부철근 배근 전에 세우므로 기초하부철근배근에 상당히 지장을 주고 있다.Most of these new construction methods are bulky and carry a lot of transportation costs because they are connected to the rebar bundle and the inner round plate at the factory, and they are transported long distance to the site. have.
또한 콘크리트말뚝은 10개중 3개 정도는 몰탈이 깔려 있어 내경이 일정치 않다. 심지어는 몰탈 두께가 5 Cm 이상되는 경우가 있다. 이를 피하기 위해 보강철근 설치반경을 줄이기 때문에 하중저항에 불리한 구조가 된다. 이를 종합해보면 비록 신공법이지만 운반에 볼편과 비경제적인 면이 있으며, 내경이 일정치 않은 말뚝에 부적합한 구조이며, 기초하부철근배근에 지장을 주고 있는 실정이다Also, about 3 out of 10 concrete piles are mortar coated, so the inner diameter is not constant. Even mortars are sometimes 5 cm or more. To avoid this, the radius of rebar installation is reduced, which is disadvantageous to the load resistance. Taken together, although it is a new construction method, it has a ball piece and an uneconomical aspect in transportation, an unsuitable structure for a pile whose inner diameter is not constant, and it is a problem for the lower base reinforcement.
본 발명은 전술한 바와 같은 문제를 해결하기 위하여 안출한 것으로서, 기초철근 배근시 100% 간섭이 없고, 보강철근의 설치 유격을 용이하게 하며, 수평보강철근이 띠철근과 기초하부철근과 조합되어 보강하여 펀칭을 막게 하며, 휨모멘트와 인발력에 저항하는 힘이 강해지며, 운반이 용이하고, 경제적이며, 품질이 우수해지는 콘크리트말뚝의 두부보강구조 및 그 시공방법을 제공하고자 하는 목적이 있다.The present invention has been made in order to solve the above problems, there is no 100% interference when reinforcing the basic reinforcement, facilitate the installation clearance of the reinforcing bars, horizontal reinforcing bars are combined with the band reinforcement and the base lower reinforcement The purpose of the present invention is to provide a head reinforcement structure and construction method of concrete piles to prevent punching, to strengthen bending moments and to resist pull-out force, to be easy to carry, to be economical, and to be of high quality.
본 발명은 전술한 목적을 달성하기 위하여 원형판이 지지봉에 의해 관체 내부에 삽입되어 속채움콘크리트 타설시 거푸집 역할을 하도록 구성된 말뚝의 보강구조에 있어서, 상,하부가 개방되게 형성한 콘크리트말뚝; 콘크리트말뚝에 삽입되고 가장자리에 다수개의 홀이 형성되어 다수개의 연결봉에 의해 콘크리트말뚝 상단에 걸려 고정되는 원형판; 지면 상부로 콘크리트말뚝 둘레에 콘크리트가 타설되어 형성되는 버림콘크리트부; 콘크리트말뚝의 상부로 배근되는 기초하부철근; 기초하부철근의 상부에서 기초하부철근과 연결 설치되는 원형의 띠철근; 수직 철근 일측에 수평으로 수평보강철근이 용접되고, 다수개의 수직철근이 일정간격으로 콘크리트말뚝의 내부로 삽입되면서 외향되는 수평보강철근이 띠철근과 결합되어 고정되며, 먼저 설치된 기초하부철근과 수평보강철근이 결합되어 기초콘크리트를 보강하는 보강철근; 콘크리트말뚝의 내부와 버림콘크리트부의 상부로 타설되어 상부구조물의 하중을 콘크리트말뚝으로 분산시키는 기초콘트리트부를 포함하여 구성되는 것을 특징으로 하며, 기초하부철근의 상부에 띠철근의 직경보다 큰 대구경띠철근이 띠철근 바깥으로 설치되어 띠철근과 대구경띠철근이 각각 수평보강철근과 결합되어 보강되는 것을 특징으로 하며, 원커팅으로 콘크리트말뚝의 상단을 절단하는 말뚝절단단계; 연결봉에 의해 지지되는 원형판을 콘크리트말뚝의 내부로 삽입하고, 절곡된 연결봉 상단을 콘크리트말뚝의 상단에 걸쳐 설치하는 원형판 설치단계; 지면 상부와 콘크리트말뚝 둘레에 콘크리틀 타설하는 기초버림콘크리트 타설단계; 콘크리트말뚝의 상부에 종횡으로 철근을 배근하는 기초하부철근 배근 단계; 기초하부철근의 상부에 콘크리트말뚝의 내경과 근접한 크기의 띠철근을 고정 설치하는 띠철근 설치단계; 수직철근의 일측에 수평보강철근을 용접하고, 수평보강철근을 용접한 상태로 띠철근 내경과 콘크리트말뚝 내경으로 삽입하며, 수평보강철근과 띠철근과 기초하부철근을 결합시키는 보강철근 설치단계; 보강철근이 설치된 상태 또는 추가로 기초상부철근을 배근한 상태에서 콘크리트를 타설하는 기초콘크리트타설 단계가 순차적으로 이루어지는 것을 특징으로 하는 콘크리트말뚝의 두부보강 시공방법을 제공한다.The present invention is a reinforcing structure of a pile configured to serve as a formwork when placing a circular plate is inserted into the tube by a support rod in order to achieve the above object, the concrete pile formed to open the upper and lower parts; A circular plate inserted into the concrete pile and having a plurality of holes formed at an edge thereof and fixed to the top of the concrete pile by a plurality of connecting rods; Cast concrete portion formed by pouring concrete around the concrete pile to the upper surface; Foundation lower reinforcement to the upper part of the concrete pile; A circular band reinforcing bar installed in connection with the lower base bar in the upper part of the lower base bar; Horizontal reinforcing bars are welded horizontally to one side of the vertical reinforcing bars, and horizontal reinforcing bars which are outgoing as a plurality of vertical reinforcing bars are inserted into the concrete pile at regular intervals are fixed in combination with the band reinforcing bars. Reinforcing bars are combined to reinforce the foundation concrete; It is characterized in that it comprises a foundation concrete portion that is poured into the interior of the concrete pile and the top of the discarded concrete portion to distribute the load of the upper structure to the concrete pile, the large diameter band reinforcing bar larger than the diameter of the band reinforcement A band cutting step of cutting the top of the concrete pile by one cutting, characterized in that the band reinforcing bars are installed outside the band reinforcing bars and the large-diameter band reinforcing bars, respectively. A circular plate installation step of inserting the circular plate supported by the connecting rod into the inside of the concrete pile and installing the upper end of the curved connecting rod over the upper end of the concrete pile; Foundation casting concrete casting step of placing concrete around the upper surface and concrete piles; A base lower reinforcement step for reinforcing the reinforcing bars vertically and horizontally on top of the concrete piles; A band reinforcing step of fixing and fixing a band reinforcing bar having a size close to the inner diameter of the concrete pile on the upper part of the base reinforcing bar; Welding horizontal reinforcing bars on one side of the vertical reinforcing bars, inserting the horizontal reinforcing bars into the inner diameter of the band reinforcing bars and the concrete piles, and installing the reinforcing bar connecting the horizontal reinforcing bars, the band reinforcing bars and the base lower bars; It provides a method of reinforcing the head of the concrete pile, characterized in that the step of placing the concrete concrete in order to install the concrete in the state where the reinforcement is installed or additionally the upper reinforcement.
이상과 같이 본 발명은 기초철근 배근시 간섭이 전혀 없고, 콘크리트말뚝과 같이 내경이 일정치 않은 경우 보강철근을 전후 좌우로 이동 설치할 수 있으므로 시공이 간편한 효과가 있다.As described above, the present invention has no interference when reinforcing the basic reinforcement, and when the inner diameter is not constant, such as concrete piles, the reinforcing bars can be moved back and forth and installed to the left and right, so the construction is easy.
보강철근의 수평보강철근과 띠철근과 기초하부철근이 서로 연결 조합되어 기초콘크리트를 보강하는 방석효과가 있으며, 이러한 구조로 인하여 펀칭이 방지되고, 휨모멘트 및 인발력에 저항하는 힘이 증대되는 효과가 있다.The horizontal reinforcing reinforcing bar, the band reinforcing bar and the lower part of the reinforcing bar are connected to each other to have a cushioning effect to reinforce the foundation concrete.This structure prevents punching and increases the force to resist bending moments and pullout force. have.
수평보강철근과 띠철근과 기초하부철근이 서로 연결되어 상하좌우 방향을 향하여 견고한 결합이 되므로 기초두께가 낮을 경우에도 압축 인발 및 휨모멘트 저항에 유리한 효과가 있다.Since horizontal reinforcing bars, band reinforcing bars, and base reinforcing bars are connected to each other and are firmly coupled up, down, left, and right directions, there is an advantageous effect on compression drawing and bending moment resistance even at low foundation thickness.
자재를 현장 조립하여 운반비가 줄어드는 효과가 있다.By assembling the material on site, the transportation cost is reduced.
이하 첨부된 도면을 참조하여 본 발명의 구성을 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석하여서는 되지 않고, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in the present specification and claims should not be interpreted as being limited to the ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain the invention of their own. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
본 발명의 콘크리트말뚝의 두부보강구조 및 그 시공방법은 콘크리트말뚝과 확대기초를 결합하여 상부 구조물의 하중을 안전하게 콘크리트말뚝으로 전달하여 다수개의 콘크리트파일로 상부 구조물의 하중을 지반에 분산시키는 것이며, 이를 위하여 일정하지 않은 말뚝 내경에 보강철근을 용이하게 설치하고, 기초하부철근과 띠철근과 수평보강철근이 서로 조합되어 기초콘트리트를 보강하게 하는 구조를 특 징으로 하여 기초두께가 낮을 경우에도 압축 인발 및 휨모멘트에 저항하는데 유리하게 구성된 것이다.The head reinforcement structure and construction method of the concrete pile of the present invention is to combine the concrete pile and the expansion foundation to safely transfer the load of the upper structure to the concrete pile to distribute the load of the upper structure to the ground by a plurality of concrete piles, It is easy to install reinforcing bars in non-uniform pile bore, and the structure that reinforces the foundation concrete by combining the base reinforcing bar, the band reinforcing bar and the horizontal reinforcing bar is combined with each other. It is advantageously configured to resist bending moments.
원형판(20)이 연결봉(21)에 의해 관체 내부에 삽입되어 속채움콘크리트 타설시 거푸집 역할을 하도록 구성된 말뚝의 보강구조에 있어서, 말뚝은 상,하부가 개방되게 형성한 콘크리트말뚝(10)을 사용한다. 콘크리트말뚝(10)이 지면에 삽입된 상태에서 두부가 절단되고, 원형판(20)이 콘크리트말뚝(10)에 삽입된다.
본 발명에서 원형판(20)과 연결봉(21)은 설치하지 않을 수 있다. 원형판(20)과 연결봉(21)이 설치되지 않는 경우는 콘크리트 말뚝의 내부에 미리 콘크리트가 어느정도 차있을 경우나 흙이 내부로 들어와 있을 경우와 같이 거푸집이 필요하지 않을 경우에는 원형판(20)을 설치하지 않는다.In the present invention, the
원형판(20)은 가장자리에 다수개의 홀이 형성되어 다수개의 연결봉(21)에 의해 콘크리트말뚝(10) 상단에 걸려 고정된다. 연결봉(21)의 상단은 하부를 향해 개방된 ㄷ자 형상으로 절곡되어 콘크리트말뚝(10)의 상단에 걸린다.
도 6 내지 10에 나타낸 바와 같이, 버림콘크리트부(30)는 지면 상부로 콘크리트말뚝(10) 둘레에 콘크리트가 타설되어 형성된다.6 to 10, the discarded
기초하부철근(40)은 도 7에 나타낸 바와 같이 콘크리트말뚝(10)의 상부로 배근된다.The base
띠철근(50)은 콘크리트말뚝(10)의 내경과 유사한 크기의 원형으로 형성되어 기초하부철근(40)의 상부에서 기초하부철근(40)과 연결 설치된다.The
보강철근(60)은 수직 철근(61) 일측에 수평으로 수평보강철근(65)이 용접되고, 다수개의 수직철근(61)이 일정간격으로 콘크리트말뚝(10)의 내부로 삽입되면서 외향되는 수평보강철근(65)이 띠철근(50)과 결합되어 고정된다. 그리고 먼저 설치된 기초하부철근(40)과 수평보강철근(65)이 결합되어 기초콘크리트를 보강한다.The
이와같이 수평보강철근(65)은 방사상으로 외향되어 설치되고, 띠철근(50)이 수직철근(61)을 감싸는 형상이며, 수직철근(61)은 콘크리트말뚝(10)의 내경에 삽입되어 콘크리트말뚝(10)과 견고한 결합을 함과 동시에 수평보강철근(65)이 방사상으로 펼쳐지면서 기초하부철근(40)과 결합되므로 견고한 결합이 이루어진다.The
이러한 상하 좌우를 아우르는 구조로 인하여 기초콘크리트를 보강하는 방석효과가 있으며, 이러한 구조로 인하여 펀칭이 방지되고, 휨모멘트 및 인발력에 저항하는 힘이 증대되는 효과가 있다.Due to the structure encompassing the upper and lower left and right, there is a cushion effect to reinforce the foundation concrete, the punching is prevented due to this structure, there is an effect of increasing the force to resist the bending moment and the pulling force.
수평보강철근과 띠철근과 기초하부철근이 서로 연결되어 상하좌우 방향을 향하여 견고한 결합이 되므로 기초두께가 낮을 경우에도 압축 인발 및 휨모멘트 저항에 유리하다.The horizontal reinforcing bar, the band reinforcing bar, and the lower base bar are connected to each other and are firmly coupled in the up, down, left, and right directions, which is advantageous in compressive drawing and bending moment resistance even when the foundation thickness is low.
그리고 기초콘크리트가 콘크리트말뚝(10)의 내부와 버림콘크리트부의 상부로 타설되어 상부구조물의 하중을 콘크리트말뚝(10)으로 분산시키는 기초콘트리트부(70)가 형성된다.And the base concrete is poured into the interior of the
다른 실시예로 기초하부철근(40)의 상부에 띠철근(50)의 직경보다 큰 대구경띠철근(55)이 띠철근(50) 바깥으로 설치되어 띠철근(50)과 대구경띠철근(55)이 각각 수평보강철근(65)과 결합되어 더욱 더 보강될 수 있다.In another embodiment, a large
이와 같은 구조의 콘크리트말뚝의 두부보강구조 시공방법을 살펴보면 아래와 같다.Looking at the construction method of the head reinforcement structure of the concrete pile of such a structure as follows.
우선 말뚝절단단계에서 지면에 박힌 콘크리트말뚝(10) 상단을 원커팅으로 절단한다.First, the top of the
그리고 원형판 설치단계에서 연결봉(21)에 의해 지지되는 원형판(20)을 콘크리트말뚝의 내부로 삽입하고, 절곡된 연결봉 상단을 콘크리트말뚝의 상단에 걸쳐 설치한다.Then, the
그리고 기초버림콘크리트 타설단계에서 지면 상부와 콘크리트말뚝 둘레에 콘크리틀 타설하여 양생한다.And in the cast-in concrete casting stage, concrete is cast and cured around the upper surface and concrete pile.
그 다음에 콘크리트말뚝의 상부에 종횡으로 철근을 배근하는 기초하부철근 배근 단계를 거친다.The bottom reinforcement step is then performed to reinforce the rebar longitudinally and horizontally on top of the concrete pile.
그리고 기초하부철근의 상부에 콘크리트말뚝의 내경과 근접한 크기의 띠철근을 고정 설치하는 띠철근 설치단계를 거치며, 수직철근의 일측에 수평보강철근을 용접하고, 수평보강철근을 용접한 상태로 띠철근 내경과 콘크리트말뚝 내경으로 삽입하며, 수평보강철근과 띠철근과 기초하부철근을 결합시키는 보강철근 설치단계를 순차적으로 거친다.In addition, the band reinforcing bar is installed to fix the band reinforcing bar close to the inner diameter of the concrete pile on the upper part of the base reinforcing bar, and the horizontal reinforcing bar is welded to one side of the vertical reinforcing bar, and the band reinforcing bar is welded. It is inserted into the inner diameter and the inner diameter of the concrete pile, and goes through the installation step of reinforcing bar which combines horizontal reinforcing bar, band reinforcing bar and base lower bar.
보강철근이 설치된 상태 또는 추가로 기초상부철근을 배근한 상태에서 콘크리트를 타설하는 기초콘크리트타설 단계를 마지막으로 콘크리트말뚝의 두부보강에 대한 시공을 마무리 한다.Finishing the construction of the head reinforcement of the concrete pile by finishing the foundation concrete placing step of placing concrete with rebar installed or additionally laying the upper bar.
도 1a은 본 발명의 콘크리트말뚝의 두부보강구조를 도시한 사시도.Figure 1a is a perspective view showing the head reinforcement structure of the concrete pile of the present invention.
도 2a는 본 발명의 콘크리트말뚝의 두부보강구조를 도시한 분해 사시도.Figure 2a is an exploded perspective view showing the head reinforcement structure of the concrete pile of the present invention.
도 1b는 본 발명의 콘크리트 말뚝의 두부보강구조의 다른 실시예를 도시한 사시도.Figure 1b is a perspective view showing another embodiment of the head reinforcement structure of the concrete pile of the present invention.
도 2b는 본 발명의 콘크리트 말뚝의 두부보강구조의 다른 실시예를 도시한 분해 사시도.Figure 2b is an exploded perspective view showing another embodiment of the head reinforcement structure of the concrete pile of the present invention.
도 3은 본 발명의 콘크리트말뚝의 두부보강구조를 도시한 평면도.Figure 3 is a plan view showing the head reinforcement structure of the concrete pile of the present invention.
도 4 내지 도 10은 본 발명의 콘크리트말뚝의 두부보강 시공방법을 순차적으로 도시한 도면.4 to 10 are views sequentially showing the construction method of the head reinforcement of the concrete pile of the present invention.
< 도면의 주요 부분에 대한 부호의 간단한 설명 > BRIEF DESCRIPTION OF THE DRAWINGS FIG.
10 : 콘크리트말뚝 20 : 원형판10: concrete pile 20: round plate
21 : 연결봉 30 : 버림콘크리트부21: connecting rod 30: discarded concrete
40 : 기초하부철근 50 : 띠철근40: base lower reinforcing bar 50: band reinforcing bar
55 : 대구경띠철근 60 : 보강철근55: large diameter band rebar 60: reinforcing bar
61 : 수직철근 65 : 수평보강철근61: vertical reinforcement 65: horizontal reinforcement
70 : 기초콘크리트부70: foundation concrete part
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190081605A (en) * | 2017-12-29 | 2019-07-09 | 주식회사 케이씨산업 | Installation structure and method of precast concrete culvert |
| KR20240003826A (en) * | 2022-07-04 | 2024-01-11 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR20240039296A (en) * | 2022-09-19 | 2024-03-26 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR102651758B1 (en) * | 2022-10-05 | 2024-03-26 | 박봉근 | Head Reinforcing Structure of PHC Pile with shear member to improvement of bending moment and Improve Bending Moment and Distribute Uniform Normal Load |
| KR102789930B1 (en) | 2023-12-26 | 2025-03-31 | 이상목 | Horizontal reinforced pile with improved upper reinforcement structure and non-welded steel pipe connection structure |
| KR20250090912A (en) | 2023-12-13 | 2025-06-20 | 주식회사 포스코 | Bending equipment of reinforcing metrial and bending system of reinforcing metrial |
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| KR101876289B1 (en) * | 2017-10-16 | 2018-07-09 | 주식회사 제이에이치 | Retaining wall panel with reinforcement block and method for constructing retaining wall panel using the same |
| KR102290747B1 (en) | 2020-04-09 | 2021-08-20 | (주)스마텍엔지니어링 | Connecting and Reinforcing Apparatus, Structure and Method for PHC Pile |
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| KR102658249B1 (en) * | 2022-10-17 | 2024-04-16 | 박봉근 | Pile Head Reinforcing Structure To Improve Bending Moment and Distribute Uniform Normal Load At The Pile Head Using the Lower Main Steel Bar of The Cap-type In footing |
| CN115613620B (en) * | 2022-10-27 | 2026-01-02 | 海南方园建筑基础工程有限公司 | A pile foundation with shear resistance structure and a construction method for pile foundation engineering. |
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| KR100657228B1 (en) * | 2004-05-21 | 2006-12-13 | 고종원 | The head reinforce equipment of a steel pipe pile |
| KR100761758B1 (en) * | 2005-10-28 | 2007-09-28 | (주) 대호바콘텍 | Head cover for concrete pile, concrete pile used for it and construction method of expanded foundation structure using same |
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| KR100657228B1 (en) * | 2004-05-21 | 2006-12-13 | 고종원 | The head reinforce equipment of a steel pipe pile |
| KR100761758B1 (en) * | 2005-10-28 | 2007-09-28 | (주) 대호바콘텍 | Head cover for concrete pile, concrete pile used for it and construction method of expanded foundation structure using same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20190081605A (en) * | 2017-12-29 | 2019-07-09 | 주식회사 케이씨산업 | Installation structure and method of precast concrete culvert |
| KR102120849B1 (en) * | 2017-12-29 | 2020-06-09 | 주식회사 케이씨산업 | Installation structure and method of precast concrete culvert |
| KR20240003826A (en) * | 2022-07-04 | 2024-01-11 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR102631859B1 (en) * | 2022-07-04 | 2024-01-30 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR20240039296A (en) * | 2022-09-19 | 2024-03-26 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR102658248B1 (en) * | 2022-09-19 | 2024-04-16 | 박봉근 | Reinforcing Structure For PHC Pile Head Connections To Improve Bending Moment and Distribute Uniform Normal Load |
| KR102651758B1 (en) * | 2022-10-05 | 2024-03-26 | 박봉근 | Head Reinforcing Structure of PHC Pile with shear member to improvement of bending moment and Improve Bending Moment and Distribute Uniform Normal Load |
| KR20250090912A (en) | 2023-12-13 | 2025-06-20 | 주식회사 포스코 | Bending equipment of reinforcing metrial and bending system of reinforcing metrial |
| KR102789930B1 (en) | 2023-12-26 | 2025-03-31 | 이상목 | Horizontal reinforced pile with improved upper reinforcement structure and non-welded steel pipe connection structure |
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| KR20110022109A (en) | 2011-03-07 |
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