KR20010057453A - Steel pier anchorage system using large deformed bar - Google Patents

Steel pier anchorage system using large deformed bar Download PDF

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Publication number
KR20010057453A
KR20010057453A KR1019990060894A KR19990060894A KR20010057453A KR 20010057453 A KR20010057453 A KR 20010057453A KR 1019990060894 A KR1019990060894 A KR 1019990060894A KR 19990060894 A KR19990060894 A KR 19990060894A KR 20010057453 A KR20010057453 A KR 20010057453A
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South Korea
Prior art keywords
steel
deformed
anchor
anchor system
steel pier
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KR1019990060894A
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Korean (ko)
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박용명
최원경
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이구택
포항종합제철 주식회사
신현준
재단법인 포항산업과학연구원
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Priority to KR1019990060894A priority Critical patent/KR20010057453A/en
Publication of KR20010057453A publication Critical patent/KR20010057453A/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/42Foundations for poles, masts or chimneys
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron

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  • Engineering & Computer Science (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)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

PURPOSE: A steel bridge anchor system using large-sized deformed bars is provided to utilize anchor bolts having a small section relatively and low-priced reinforcing bars properly and to maximize economical efficiency by applying a lower plate from a lower frame of the upper-lower plate method. CONSTITUTION: A steel bridge anchor system(1) using large-sized deformed bars comprises many deformed bars(10) laid under a column(110) of a steel bridge used for the lower part of a bridge and the lower ends of the deformed bars are extended to the inside of a footing(120), so that the deformed bars share some of the load of external force burdened to anchor bolts(20).

Description

대형 이형철근을 이용한 강재교각 앵커시스템{STEEL PIER ANCHORAGE SYSTEM USING LARGE DEFORMED BAR}Steel Pier Anchor System using Large Deformed Steel Bar {STEEL PIER ANCHORAGE SYSTEM USING LARGE DEFORMED BAR}

본 발명은 교량의 하부 교각에 사용되는 강재 교각의 경제적인 앵커방식에 관한 것으로, 보다 상세히는 종래의 방식에 비해 상대적으로 단면이 작은 앵커볼트와 저가의 철근을 적절히 활용하고, 상, 하부 플레이트 방식에서 하부 플레이트만을 적용함으로써 경제성을 극대화할 수 있도록 개선된 대형 이형철근을 이용한 강재교각 앵커시스템에 관한 것이다.The present invention relates to an economic anchoring method of steel piers used in the lower piers of bridges, and more specifically, the use of anchor bolts and inexpensive rebars having a relatively small cross-section compared to the conventional method, the upper and lower plate method The present invention relates to a steel pier anchor system using large deformed reinforcing bars, which can be improved to maximize economics by applying only a lower plate.

일반적으로 종래의 방식에 의한 강재교각 앵커시스템(100)는 도 4에 나타낸 바와 같이 강재기둥(110)이 기초 콘크리트(120) 속에 매설된 앵커프레임(130a)(130b)과 앵커볼트(140)를 통하여 연결되어 외력에 저항하는 방식이다.In general, the steel pier anchor system 100 according to the conventional method as shown in Figure 4 the steel pillar 110 is anchor frame 130a, 130b and anchor bolt 140 embedded in the base concrete 120 It is connected through and resists external force.

이와 같은 종래의 강재교각용 앵커시스템(100)방식에 의하는 경우, 다수개의 앵커볼트(140)들이 도 5에 도시된 바와 같이 기초 콘크리트(120) 속에서 상하 철구조물을 이루는 상,하부 앵커 프레임(130a)(130b)에 의해서 매설 고정되고, 이러한 앵커볼트(140)들의 머리 나사부(140a)가 기초 콘크리트(120)의 상부로 돌출되어 교각 기둥부의 하단을 이루는 하측 프레임(150)에 연결 고정된다.In the case of the conventional steel piercing anchor system 100, such as a plurality of anchor bolts 140, the upper and lower anchor frame forming the upper and lower steel structures in the base concrete 120, as shown in FIG. Is buried by (130a) (130b), the head screw portion 140a of these anchor bolts 140 is fixed to the lower frame 150 is projected to the upper portion of the base concrete 120 to form a lower end of the pier pillar portion. .

상기 교각 기둥부의 하측 프레임(150)은 상,하부 플레이트(152)를 갖추고,그 사이에는 다수개의 보강 리브(154)들을 장착하며, 상기 리브(154)들 사이의 공간에서 상, 하부 플레이트(152)들을 관통하도록 앵커볼트(140)의 머리 나사부(140a)들이 끼워지고, 이들은 그 상부에서 너트(160)로 고정되며, 도 6에 도시된 바와 같이 하측 프레임(150)의 주위를 에워싸면서 형성된다.The lower frame 150 of the pier pillar portion has upper and lower plates 152, and a plurality of reinforcing ribs 154 are mounted therebetween, and upper and lower plates 152 in a space between the ribs 154. The head screws 140a of the anchor bolt 140 are fitted to penetrate through the pads, which are fixed to the nut 160 at an upper part thereof, and are formed while enclosing the lower frame 150 as shown in FIG. 6. do.

그러나, 이와 같은 종래의 강재 교각용 앵커시스템(100)에서는 도 5에 나타낸 바와같이 강재 기둥과 기초 콘크리트(120)를 대형 앵커볼트(140)만으로 연결하여 외력에 저항하는 방식이기 때문에, 종래 방식에 의하는 경우 앵커볼트(140)의 대형화로 공사비가 비싸고 앵커볼트(140)가 체결되는 기둥부(110)에는 대형의 하부 프레임(150)이 필요한 것이다.However, in the conventional steel piers anchor system 100 as shown in FIG. 5, the steel pillars and the base concrete 120 is connected to only the large anchor bolts 140 to resist external forces. In the case of the construction cost is expensive due to the large size of the anchor bolt 140, the pillar portion 110 to which the anchor bolt 140 is fastened, a large lower frame 150 is required.

이러한 하부 프레임(150)은 상,하부 베이스 플레이트(152)와 그 사이에 형성된 다수개의 보강 리브(154)들을 갖는 것으로서 상기 상,하부 베이스 플레이트(152)들을 관통하여 상부측으로 앵커볼트(140)의 상단 나사부(140a)가 돌출되고, 상기 나사부(140a)에 너트(160)가 결합되는 구조를 갖는 것이다.The lower frame 150 has upper and lower base plates 152 and a plurality of reinforcing ribs 154 formed therebetween, and penetrates the upper and lower base plates 152 to the upper side of the anchor bolt 140. The upper threaded portion 140a protrudes, and the nut 160 is coupled to the threaded portion 140a.

따라서, 상기와 같은 종래의 강재 교각 앵커시스템은 구조적으로 복잡하고 앵커볼트(140)의 단면이 매우 큰 대형 규격을 사용하며, 큰 구조의 하부 프레임(150)을 사용하여야 함으로서 비경제적인 것이다.Therefore, the conventional steel pier anchor system as described above is economically complicated by using a large size of the structural complex and the large cross-section of the anchor bolt 140, and the use of the lower frame 150 of a large structure.

본 발명은 상기와 같은 종래의 문제점을 해소하기 위하여 안출된 것으로서 그 목적은, 상대적으로 단면이 작은 앵커볼트와 저가의 철근을 적절히 활용하고, 상, 하부 플레이트 방식의 하부프레임에서 하부 플레이트만을 적용함으로써 경제성을 극대화할 수 있도록 개선된 대형 이형철근을 이용한 강재교각 앵커시스템을 제공함에 그 목적이 있는 것이다.The present invention has been made in order to solve the above-mentioned conventional problems, the object of the present invention is to properly utilize a relatively small cross-section anchor bolt and inexpensive rebar, by applying only the lower plate in the upper, lower plate-type lower frame The purpose is to provide a steel pier anchor system using large deformed steel reinforcement to maximize economic efficiency.

도 1은 본 발명에 따른 대형 이형철근을 이용한 강재교각 앵커시스템을 도시한 단면도;1 is a cross-sectional view showing a steel pier anchor system using a large deformed bar according to the present invention;

도 2는 본 발명에 따른 대형 이형철근을 이용한 강재교각 앵커시스템의 이형철근을 도시한 사시도;Figure 2 is a perspective view showing a deformed reinforcing bar of the steel pier anchor system using a large deformed bar according to the present invention;

도 3은 본 발명에 따른 대형 이형철근을 이용한 강재교각 앵커시스템의 단면도로서, 도 1의 A-A 선을 따른 단면도;3 is a cross-sectional view of the steel pier anchor system using a large deformed bar according to the present invention, a cross-sectional view along the line A-A of FIG.

도 4는 일반적인 강재교각 기둥부의 기초부분을 도시한 측면도;Figure 4 is a side view showing the base portion of the general steel pier pillars.

도 5는 종래의 기술에 따른 강재교각용 앵커시스템을 이용하여 강재교각 기초를 시공한 측단면도;Figure 5 is a side cross-sectional view of the construction of the steel piers using the steel piers anchor system according to the prior art.

도 6은 도 5의 D-D 선을 따른 단면도이다.FIG. 6 is a cross-sectional view taken along the line D-D of FIG. 5.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10..... 이형 철근 12..... 돌턱10 ..... Deformed Rebar 12 ..... Stone Jaw

14..... 절곡부 20..... 앵커볼트14 ..... Bend 20 ..... Anchor Bolt

20a.... 머리부 30..... 하부 플레이트20a .... head 30 ..... bottom plate

32..... 구멍 34.... 보강 리브32 ..... Hole 34 .... Reinforcement Rib

120.... 기초 콘크리트 130a,130b... 상,하부 앵커프레임120 .... Foundation concrete 130a, 130b ... Upper and lower anchor frames

150.... 하부 프레임150 .... lower frame

상기와 같은 목적을 달성하기 위하여 본 발명은,The present invention to achieve the above object,

교량의 하부에 사용되는 강재 교각의 앵커시스템에 있어서,In the anchor system of steel piers used in the lower part of the bridge,

강재교각의 기둥부에는 다수개의 이형철근들이 매설되어 그 하단부가 기초 콘크리트의 내부로 연장되고 매설됨으로서 앵커볼트가 부담하여야 하는 외력의 하중 일부를 분담하도록 구성됨을 특징으로 하는 대형 이형철근을 이용한 강재교각 앵커시스템을 마련함에 의한다.Steel pier using a large deformed steel reinforcing bar is characterized in that a plurality of deformed steel bars are embedded in the pillar part of the steel pier, and the lower part thereof is extended and embedded in the foundation concrete so as to share a part of the external force that the anchor bolt must bear. By providing an anchor system.

그리고, 본 발명은 상기 강재교각 기둥부의 사방으로 앵커볼트들의 머리부가 돌출되는 구멍이 형성되고, 상기 머리부들은 다수개의 보강리브들 사이사이에 배치되며, 상기 구멍들 내측으로는 다수개의 이형 철근들이 삽입가능한 구멍들이 형성되는 하부 플레이트를 추가 포함함을 특징으로 하는 대형 이형철근을 이용한 강재교각 앵커시스템을 마련함에 의한다.In addition, the present invention is formed with a hole for protruding the head of the anchor bolts in all directions of the steel pier pillar, the head portion is disposed between a plurality of reinforcing ribs, a plurality of deformed steel bars inside the holes By providing a steel pier anchor system using a large deformed reinforcing bar characterized in that it further comprises a bottom plate formed with insertable holes.

이하, 본 발명을 도면에 따라서 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the drawings.

본 발명에 따른 대형 이형철근을 이용한 강재교각 앵커시스템(1)은 도 1 및 도 2에 도시된 바와 같이, 교량의 하부에 사용되는 강재 교각의 기둥부(110)에 다수개의 이형철근(10)들이 매설되어 그 하단부가 기초 콘크리트(120)의 내부로 연장된다.Steel pier anchor system (1) using a large deformed reinforcing bar according to the present invention, as shown in Figure 1 and 2, a plurality of deformed steel reinforcement (10) in the column portion 110 of the steel pier used in the lower portion of the bridge Are embedded so that the lower end thereof extends into the base concrete 120.

즉, 강재교각의 기둥부(110)는 차량 충돌에 대비하여 콘크리트가 일정 높이까지 충전되며, 합성교각의 경우에는 기둥부(110) 전체에 걸쳐 내부 콘크리트를 충전하게 된다. 따라서, 본 발명은 도 1과 같이 강재기둥부(110)의 내부에 충전되는 콘크리트(110a)를 활용하여 기둥부(110)의 내부에 대형 이형 철근(10)을 다수 설치하여 이를 기초 콘크리트(120)에 정착시킴으로써 앵커볼트(20)가 부담해야 하는 외력의 상당부분을 철근(10)이 부담하도록 할수 있고 아울러, 하부 프레임(150)도 하부 플레이트(30)만을 사용하여 구조를 단순화할 수 있다That is, the pillar portion 110 of the steel pier is filled with concrete to a certain height in preparation for a vehicle collision, in the case of a composite pier to fill the internal concrete throughout the pillar portion 110. Therefore, the present invention utilizes the concrete (110a) is filled in the interior of the steel column 110, as shown in FIG. Reinforcement 10 can bear a substantial portion of the external force to be anchored by the anchor bolt 20, and the lower frame 150 can also simplify the structure using only the lower plate (30).

상기에서 사용되는 이형 철근(10)들은 그 외주면에 직경이 확대된 돌턱(12)들을 형성하는 것으로서, 이들 돌턱(12)은 기초 콘크리트(120)와의 접촉면적을 확대시켜 접촉강도를 증진시킨다. 그리고, 상기 이형철근(10)의 하단부는 절곡부(14)를 형성하여, 일정의 정착길이를 주어 배치되는 것이다.As used herein, the deformed reinforcing bars 10 form the stepped stones 12 having an enlarged diameter on the outer circumferential surface thereof, and the stepped stones 12 increase the contact area by increasing the contact area with the base concrete 120. In addition, the lower end of the deformed reinforcing bar 10 forms a bent portion 14, and is disposed to give a predetermined fixing length.

또한, 본 발명에 갖춰진 이형철근(10)들은 도 3에 도시된 바와 같이 강재교각 기둥부(110)의 사방측면에 1열 또는 2열로 줄지어 다수개가 매설되고, 상기 하부 플레이트(30)를 상,하로 통과하게 된다.In addition, the deformed steel bars 10 provided in the present invention are lined up in one row or two rows on four sides of the steel piercing column 110 as shown in FIG. , Will pass down.

한편, 본 발명에 따라서 이형철근(10)을 장착하게 되면, 앵커볼트(20)가 부담하여야 하는 외력의 하중 일부를 이형철근(10)들이 분담하므로 앵커볼트(20)가 부담하는 하중이 크게 줄어듬에 따라 기초 콘크리트(120)에 설치되는 앵커프레임(130a)(130b)의 단면이 줄어들어 효율적 앵커방식의 구현이 가능하다.On the other hand, when the deformed reinforcing bar 10 is mounted in accordance with the present invention, since the deformed reinforcing bars 10 share a part of the external force that the anchor bolt 20 must bear, the load that the anchor bolt 20 bears is greatly reduced. Accordingly, the cross section of the anchor frames 130a and 130b installed on the foundation concrete 120 is reduced, so that an efficient anchoring method can be realized.

본 발명은 종래의 하부프레임으로서 도 3에 도시된 바와 같은 하부 플레이트(30)를 장착할 수 있다. 이는 강재교각 기둥부(110)의 사방으로 앵커볼트(20)들의 머리부(20a)가 돌출되는 구멍(32)이 형성되고, 상기 머리부(20a)들은 다수개의 보강 리브(34)들 사이사이에 배치된다.The present invention can be equipped with a lower plate 30 as shown in Figure 3 as a conventional lower frame. It is formed in the hole 32 through which the head portion 20a of the anchor bolts 20 protrudes in all directions of the steel piercing pillar portion 110, and the head portion 20a is disposed between the plurality of reinforcing ribs 34. Is placed on.

그리고, 상기 구멍(32)들 내측으로는 다수개의 이형 철근(10)들이 삽입가능한 구멍(36)들이 형성되며, 이들 구멍(36)들은 기둥부(110)의 사방측면을 따라서 2열로 배치된다.In addition, the holes 32 are formed with holes 36 into which the plurality of deformed bars 10 can be inserted, and the holes 36 are arranged in two rows along the four sides of the pillar part 110.

상기와 같이 구성된 본 발명의 작용 및 효과를 설명하기로 한다.The operation and effects of the present invention configured as described above will be described.

본 발명은 강재교각의 정착부에 대형 이형 철근(10)을 앵커볼트(20)와 같이 사용하여 외력에 저항하도록 하는 앵커방식이다.The present invention is an anchor method to resist external forces by using a large deformed reinforcing bar 10 as the anchor bolt 20 to the fixing portion of the steel piers.

강재교각의 기둥부(110)에 작용하는 외력은 철근(10)이 상당부분 부담하고 외력의 나머지 양은 하부 베이스 플레이트(30)에 설치된 다수개의 앵커볼트(20)를 통해 기초 콘크리트(120)에 전달되어 앵커프레임(130a)(130b)에 최종적으로 전달된다.External force acting on the pillar portion 110 of the steel pier bears a substantial portion of the reinforcing bar 10 and the remaining amount of external force is transmitted to the foundation concrete 120 through a plurality of anchor bolts 20 installed on the lower base plate 30. And finally delivered to the anchor frames (130a, 130b).

본 발명에 의하면, 예를들어 도 4의 종래 방식에 의할 경우 앵커볼트(20)의 각각의 직경은 150mm 가 필요한데 비해 본 발명에 의할 경우에는 도 1과 같이 대형 이형철근(10)이 하중의 절반이상을 부담함으로써 앵커볼트(20) 직경을 100mm 이하로 줄일 수 있다.According to the present invention, for example, the diameter of each of the anchor bolts 20 is 150mm in the case of the conventional method of FIG. 4, but in the case of the present invention, as shown in FIG. By bearing more than half of the anchor bolt 20 can be reduced to less than 100mm in diameter.

따라서, 앵커볼트(20)가 부담하는 하중이 현저히 줄어들어 종래의 상, 하부 베이스플레이트 방식의 하부프레임(150)에서 상부 플레이트를 생략하고 하부 플레이트(30)만을 사용하는 간단한 구조로 할 수 있고, 기초 콘크리트(120)에 매입된 앵커프레임(130a)(130b)의 단면을 줄일 수 있어 경제성을 극대화 할 수 있다.Therefore, the load on the anchor bolt 20 is significantly reduced, so that the upper plate may be omitted in the lower frame 150 of the conventional upper and lower base plates, and the lower plate 30 may be used as a simple structure. The cross-section of the anchor frame (130a, 130b) embedded in the concrete 120 can be reduced to maximize the economics.

상기에서와 같이 본 발명에 의하면, 상대적으로 단면이 작은 앵커볼트(20)와 저가의 철근(10)을 적절히 활용하고, 상,하부 플레이트(152) 방식의 하부프레임(150)에서 하부 플레이트(30)만을 적용함으로써 시공원가를 현저히 감소시켜 경제성을 극대화할 수 있도록 개선된 효과가 얻어지는 것이다.As described above, according to the present invention, the anchor bolt 20 having a relatively small cross section and the inexpensive rebar 10 are appropriately utilized, and the lower plate 30 in the lower frame 150 of the upper and lower plate 152 methods. By applying only), it is possible to significantly reduce the city park price and obtain an improved effect to maximize economic efficiency.

Claims (3)

교량의 하부에 사용되는 강재 교각의 앵커시스템에 있어서,In the anchor system of steel piers used in the lower part of the bridge, 강재교각의 기둥부(110)에는 다수개의 이형철근(10)들이 매설되어 그 하단부가 기초 콘크리트(120)의 내부로 연장되고 매설됨으로서 앵커볼트(20)가 부담하여야 하는 외력의 하중 일부를 분담하도록 구성됨을 특징으로 하는 대형 이형철근을 이용한 강재교각 앵커시스템.A plurality of deformed reinforcing bars 10 are embedded in the pillar portion 110 of the steel pier so that the lower end thereof extends and is embedded in the base concrete 120 so as to share a part of the external force that the anchor bolt 20 must bear. Steel pier anchor system using a large deformed reinforcement, characterized in that configured. 제 1항에 있어서, 상기 이형 철근(10)들은 그 외주면에 직경이 확대된 돌턱(12)들을 형성하고, 이들 돌턱(12)은 기초 콘크리트(120)와의 접촉면적을 확대시켜 접촉강도를 증진시키며, 상기 이형철근(10)의 하단부는 절곡부(14)를 형성하고, 기초 콘크리트(120)에 매설됨을 특징으로 하는 대형 이형철근을 이용한 강재교각 앵커시스템.According to claim 1, wherein the deformed reinforcing bars 10 are formed on the outer circumferential surface of the projections 12 having an enlarged diameter, these projections 12 to increase the contact area with the base concrete 120 to enhance the contact strength , The lower end of the deformed reinforcing bar (10) forms a bent portion (14), the steel piers anchor system using a large deformed reinforcement, characterized in that it is embedded in the foundation concrete (120). 제 1항에 있어서, 상기 강재교각 기둥부(110)의 사방으로 앵커볼트(20)들의 머리부(20a)가 돌출되는 구멍(32)이 형성되고, 상기 머리부(20a)들은 다수개의 보강리브(34)들 사이사이에 배치되며, 상기 구멍(32)들 내측으로는 다수개의 이형 철근(10)들이 삽입가능한 구멍(36)들이 형성되는 하부 베이스 플레이트(30)를 추가 포함함을 특징으로 하는 대형 이형철근을 이용한 강재교각 앵커시스템.The method according to claim 1, wherein the hole 32 is formed in which the head portion 20a of the anchor bolts 20 protrude in all directions of the steel pier pillar portion 110, the head portion 20a is a plurality of reinforcing ribs It is disposed between the (34), characterized in that the inside of the holes 32 further comprises a lower base plate 30 in which a plurality of deformed reinforcement (10) is formed an insertable hole (36) Steel pier anchor system using large deformed rebar.
KR1019990060894A 1999-12-23 1999-12-23 Steel pier anchorage system using large deformed bar KR20010057453A (en)

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KR100431835B1 (en) * 1999-12-23 2004-05-20 주식회사 포스코 Anchor for steel pier by using deformed bar
KR100756517B1 (en) * 2006-09-13 2007-09-10 주식회사 도담이앤씨 Hollow type composite pier
KR100962514B1 (en) * 2009-11-06 2010-06-14 (주)범건축종합건축사사무소 Concrete column unit and producing apparatus and producing method for the same
CN105952059A (en) * 2016-07-05 2016-09-21 北京交通大学 Reinforcing bar anchorage method used instead of strong-strength reinforcing bar hooking
CN109723079A (en) * 2019-01-17 2019-05-07 黄贺明 A kind of prefabricated wind power foundation of ultra-high performance concrete
CN110777837A (en) * 2019-11-01 2020-02-11 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane
KR20200128591A (en) * 2019-04-02 2020-11-13 가부시키가이샤 프렉스 Concrete foundation structure and its construction method
US11274412B2 (en) 2019-01-31 2022-03-15 Terracon Consultants, Inc. Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same
US11365523B2 (en) 2018-11-13 2022-06-21 Terracon Consultants, Inc. Methods for constructing tensionless concrete pier foundations and foundations constructed thereby
US11434617B2 (en) 2014-10-07 2022-09-06 Terraconn Consultants, Inc. Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like
US11661718B2 (en) 2018-07-25 2023-05-30 Terracon Consultants, Inc. Concrete pier foundation with lateral shear reinforcing loops and methods of constructing the same
KR20230158891A (en) * 2022-05-12 2023-11-21 에스비엔지니어링 주식회사 Steel Column Foundation Connection Structure with Improved Resistance to Cone Breakage and its Construction Method
US11885092B2 (en) 2019-01-31 2024-01-30 Terracon Consultants, Inc. Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same
KR102671856B1 (en) * 2023-08-23 2024-06-03 폴그린테크(주) Arm-coupled metal structure with improved moment dissipation and vibration absorption

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Publication number Priority date Publication date Assignee Title
KR100431835B1 (en) * 1999-12-23 2004-05-20 주식회사 포스코 Anchor for steel pier by using deformed bar
KR100756517B1 (en) * 2006-09-13 2007-09-10 주식회사 도담이앤씨 Hollow type composite pier
KR100962514B1 (en) * 2009-11-06 2010-06-14 (주)범건축종합건축사사무소 Concrete column unit and producing apparatus and producing method for the same
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US11814808B2 (en) 2014-10-07 2023-11-14 Terracon Consultants, Inc. Retrofit reinforcing structure addition and method for wind turbine concrete gravity spread foundations and the like
CN105952059A (en) * 2016-07-05 2016-09-21 北京交通大学 Reinforcing bar anchorage method used instead of strong-strength reinforcing bar hooking
CN105952059B (en) * 2016-07-05 2024-01-23 北京交通大学 Reinforcing steel bar anchoring method for replacing high-strength reinforcing steel bar hook
US11661718B2 (en) 2018-07-25 2023-05-30 Terracon Consultants, Inc. Concrete pier foundation with lateral shear reinforcing loops and methods of constructing the same
US11976431B2 (en) 2018-11-13 2024-05-07 Terracon Consultants, Inc. Methods for constructing tensionless concrete pier foundations and foundations constructed thereby
US11365523B2 (en) 2018-11-13 2022-06-21 Terracon Consultants, Inc. Methods for constructing tensionless concrete pier foundations and foundations constructed thereby
CN109723079A (en) * 2019-01-17 2019-05-07 黄贺明 A kind of prefabricated wind power foundation of ultra-high performance concrete
US11274412B2 (en) 2019-01-31 2022-03-15 Terracon Consultants, Inc. Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same
US11885092B2 (en) 2019-01-31 2024-01-30 Terracon Consultants, Inc. Reinforcement structures for tensionless concrete pier foundations and methods of constructing the same
KR20200128591A (en) * 2019-04-02 2020-11-13 가부시키가이샤 프렉스 Concrete foundation structure and its construction method
CN110777837B (en) * 2019-11-01 2021-07-06 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane
CN110777837A (en) * 2019-11-01 2020-02-11 安徽同济建设集团有限责任公司 Construction method of fabricated building mixed tower crane
KR20230158891A (en) * 2022-05-12 2023-11-21 에스비엔지니어링 주식회사 Steel Column Foundation Connection Structure with Improved Resistance to Cone Breakage and its Construction Method
KR102671856B1 (en) * 2023-08-23 2024-06-03 폴그린테크(주) Arm-coupled metal structure with improved moment dissipation and vibration absorption

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