KR20070042125A - The connection and waterproof method of the assembly p.c culvert which applies the fixation system - Google Patents

The connection and waterproof method of the assembly p.c culvert which applies the fixation system Download PDF

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KR20070042125A
KR20070042125A KR1020070021707A KR20070021707A KR20070042125A KR 20070042125 A KR20070042125 A KR 20070042125A KR 1020070021707 A KR1020070021707 A KR 1020070021707A KR 20070021707 A KR20070021707 A KR 20070021707A KR 20070042125 A KR20070042125 A KR 20070042125A
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culvert
culverts
bracket
prestressed concrete
fixing device
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KR1020070021707A
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Korean (ko)
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백경종
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백경종
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/02—Public or like main pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/04—Domestic or like local pipe systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/04—Pipes or fittings specially adapted to sewers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Hydrology & Water Resources (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)

Abstract

본 발명은 정착장치를 활용한 공장 제작형 조립식 프리스트레스트 콘크리트 암거의 연결 및 그와 관련된 연결부위의 방수방법에 관한 것으로, 종방향으로 부설되는 제1암거 및 제2암거의 단부에 오목단부와 돌출단부를 공장제작시 설치하고 제1암거 및 제2암거의 단부 사면둘레에 각기 철판을 고정시킨 뒤 오목단부와 돌출단부에 의하여 1차 가조립된 조립식 프리스트레스트 콘크리트 암거를 용접에 의해 2차 가조립한다. 제1암거 및 제2암거의 바닥면을 제외한 3면의 외부에 소정 크기의 브라켓을 제작하여 강봉과 정착장치를 활용하여 제1암거 및 제2암거의 변형을 방지할 수 있도록 압축시켜 부설되는 조립식 프리스트레스트 콘크리트 암거를 상호 긴밀하게 압착시킨다.The present invention relates to a method of connecting a factory-fabricated prestressed concrete culvert using a fixing device and a method of waterproofing the associated parts thereof, and including a concave end and a protrusion at the ends of the first and second culverts installed in the longitudinal direction. The end is installed at the factory, and the iron plate is fixed to the end slopes of the first and second culverts, respectively, and then prefabricated prestressed concrete culverts are assembled by welding. The prefabricated type is manufactured by compressing the bracket to prevent deformation of the first and second culverts by using a steel bar and a fixing device by manufacturing a bracket having a predetermined size on the outside of the three sides except the bottom of the first and second culverts. Compress the prestressed concrete culverts tightly together.

브라켓, 정착장치, 강봉, 용접, 철판 Bracket, Fixing Device, Steel Bar, Welding, Steel Plate

Description

정착장치를 이용한 조립식 프리스트레스트 콘크리트 암거의 연결 및 방수방법{The connection and waterproof method of the assembly p.c culvert which applies the fixation system}The connection and waterproof method of the assembly p.c culvert which applies the fixation system}

도 1은 본 고안에 따른 조립식 프리스트레스트 콘크리트 암거의 결합 상태를 나타낸 사시도.  1 is a perspective view showing a combined state of the prefabricated concrete culvert according to the present invention.

도 2는 본 고안에 따른 조립식 프리스트레스트 콘크리트 암거를 조립한 상태를 나타낸 종단면도.  Figure 2 is a longitudinal cross-sectional view showing a state assembled prefabricated prestressed concrete culvert according to the present invention.

도 3은 도 1의 횡단면도.  3 is a cross-sectional view of FIG. 1.

도 4는 도 1의 브라켓 상세도.  4 is a detailed view of the bracket of FIG.

도 5는 내지 도 6은 도 1의 단부 접합부를 나타낸 상세도.  5 to 6 are detailed views showing the end junction of FIG.

※도면의 주요 부분에 대한 부호의 설명  ※ Explanation of code for main part of drawing

10, 20 : 암거 11 : 오목단부 21 : 돌출단부  10, 20: culvert 11: concave end 21: protruding end

12, 22 : 철판 30, 40 : 브라켓   12, 22: iron plate 30, 40: bracket

31, 41 : 정착장치 50 : 강봉 60 : 실런트  31, 41: fixing device 50: steel rod 60: sealant

본 고안은 조립식 프리스트레스트 콘크리트 암거의 연결부위에 관한 것으로 특히 기초지반의 변형, 하중에 의한 처짐을 방지하며 각각의 구조물을 연결·조립하는데 있어 작업이 용이하며 연결부의 누수방지를 효과적으로 차단하여 시공시 향상된 품질을 제공하는 조립식 프리스트레스트 콘크리트 암거에 관한 것이다.The present invention relates to the connection part of prefabricated prestressed concrete culverts. In particular, it prevents sagging due to deformation and load of the foundation ground, and it is easy to work on connecting and assembling each structure. A prefabricated prestressed concrete culvert that provides improved quality.

조립식 프리스트레스트 콘크리트 암거는 일정규격으로 분할·제작된 공장제작형 콘크리트 구조물로써 각종 통행로, 전신·전화 보호용 공동구 또는 수로용으로 사용되는 것으로 암거를 설치하는데 공기를 단축하고 경제적으로 시공하기 위해서 조립식형태로 제작하여 공사현장에서 이를 조립하여 완성하는 조립식 프리스트레스트 콘크리트 암거가 사용되고 있다.Prefabricated prestressed concrete culvert is a factory-manufactured concrete structure that is divided and manufactured to a certain standard, and is used for various passages, telegraph and telephone protection cavities or waterways. Prefabricated prestressed concrete culverts are being used to fabricate and assemble them at the construction site.

일반적으로 종래기술인 조립식 프리스트레스트 콘크리트 암거의 예로서 소정규격의 암거 네면 모서리에 보강부가 형성되고 그 보강부에 연결용 강선이 노출되는 요입부가 형성된 암거용 블록 구조체에서 연결용 강선은 블록으로 구성된 암거를 압착하는 역할 및 외력에 의한 변형을 방지하는 역할을 하게된다.In general, as an example of a prefabricated prestressed concrete culvert of the prior art, in the culvert block structure formed with a concave portion formed with a reinforcement is formed on the four sides of the culvert of a predetermined standard and the connecting steel wire is exposed to the reinforcement portion, the connecting steel wire is a culvert composed of blocks. Compressive role and prevents deformation by external force.

또한 사각형 암거의 단면둘레에 일정한 홈 및 파단면을 구성하여 암거의 연결을 원활하게 하여 이 홈을 이용하여 무수축몰탈, 강봉, 수팽창지수제, 실런트 등을 삽입하여 연결부에 유입되는 우수 및 지하수 등을 일시적으로 지연하는 역할을 한다. 그러나 상기한 종래의 암거 연결부위는 블록간의 연결시 상호접속되는 요입부에 몰탈주입판 및 각종 부자재를 배치하여야 하므로 그 구조가 복잡하여 시공성이 떨어지며 외적요인에 의한 연결부위에 변형이 발생할 경우 원래상태로 복원될 수 없으므로 연결부위에 하자요인을 동반할 수 밖에 없다. 연결부위의 하자요인은 일회의 이탈로 재사용이 불가능한 문제점이 있다In addition, by forming a constant groove and fracture surface around the cross section of the square culvert, the culvert is connected smoothly, and the rainwater and groundwater flowing into the joint part by inserting the non-shrink mortar, steel rod, water expansion index agent, sealant, etc. using this groove. Temporarily delay the back. However, the above-mentioned conventional culvert connection part has to arrange mortar injection plate and various subsidiary materials at the inlet part to be interconnected when the blocks are connected to each other, so the structure is complicated and the workability is inferior, and when deformation occurs in the connection part due to external factors, the original state As it cannot be restored, it is inevitable to have a defect in the connection area. There is a problem that the defect of the connection part cannot be reused due to one break.

따라서, 본 고안은 상기한 바와 같이 종래의 문제점을 해결하기 위해 고안된 것으로 본 고안의 목적은 현장여건이 각기 다른 시공현장 여건을 고려하여 정밀계산을 수행하며 각기 다른 시공조건을 최대한 반영하여 지반침하에 의한 연결부위의 변형방지 및 반영구적 방수에 목적을 두어 연결부위의 취약점을 극복하는데 그 목적이 있다.Therefore, the present invention is designed to solve the conventional problems as described above, the purpose of the present invention is to perform a precision calculation in consideration of the construction site conditions, the site conditions are different and under the ground subsidence to reflect the different construction conditions as possible The purpose of this is to overcome the weakness of the connection part with the purpose of preventing deformation and semi-permanent waterproofing of the connection part.

상기 목적을 달성하기 위한 본 고안은 사각형상을 가진 암거둘레에 서로 대응하면서 끼워지도록 오목단부와 돌출단부가 형성되며 관통형의 사면 내측 모서리 단부에 철판보강부가 형성되고 철판은 단부의 양축에 서로 마주보며 용접에 의하여 결합된다. 즉 설치되는 제1암거의 내측 사면둘레에 리벳 또는 볼트로 고정된 철판이 홈에 결합되며 제2암거의 내측 사면둘레에 동일한 방식으로 안착되어진다. 이때 철판과 철판사이는 V형홈을 갖게되며 이 홈에 용접을 이용하여 결합시킨다. The present invention for achieving the above object is a concave end portion and a protruding end portion is formed so as to be fitted to correspond to each other to the circumferential circumference having a rectangular shape, the steel plate reinforcement is formed at the inner edge end of the through-type slope and the iron plate is opposite to each other axis of the end Looked and joined by welding. That is, the iron plate fixed to the inner circumference of the first culvert to be installed by rivets or bolts is coupled to the groove and is seated in the same way on the inner circumference of the second culvert. At this time, between the iron plate and the iron plate has a V-shaped groove is bonded to the groove by welding.

이는 유입되는 우수 및 지하수를 내부에서 차단하게 된다. 또한 결합된 암거의 하부외면을 제외한 외측 3면에 소정크기의 브라켓을 설치하여 브라켓을 관통하는 소정크기의 강봉을 관통시켜 정착장치를 이용하여 연결부위 방향으로 압축시켜 암거를 긴밀하게 압착하게 한다.This will block the incoming rainwater and groundwater internally. In addition, by installing a bracket of a predetermined size on the outer three sides except the lower outer surface of the combined culvert penetrates a steel rod of a predetermined size penetrating the bracket to compress in the direction of the connection using a fixing device to squeeze the culvert closely.

이는 외력에 의한 평면상의 변형, 지반침하에 의한 종방향의 변형을 방지하는 역할을 하는 특징을 갖는다.This has a feature that serves to prevent the deformation in the plane by the external force, the longitudinal deformation due to the ground subsidence.

이하 첨부도면을 참조하여 본 고안에 따른 조립식 프리스트레스트 콘크리트 암거의 바람직한 실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the prefabricated concrete culvert according to the present invention.

도1 내지 도2는 본 고안에 따른 조립식 프리스트레스트 콘크리트 암거의 결합상태를 나타낸 사시도와 종단면도를 나타낸 것이고 도3 내지 도4는 횡단면도와 브라켓 상세도이다. 또한 도5, 도6은 단부 접합부를 나타낸 상세도이다.1 to 2 are a perspective view and a longitudinal cross-sectional view showing a coupling state of the prefabricated prefabricated concrete culvert according to the present invention and Figures 3 to 4 is a cross-sectional view and a detailed bracket. 5 and 6 are detailed views showing the end junctions.

본 고안에 따른 제1암거(10) 및 제2암거(20)는 기본적인 관통형 사각형상으로 이루어져 있으며 제1암거(10)의 오목단부와(11) 돌출단부(21)를 형성하여 서로 대응하면서 끼워 맞추게 되며 관통형의 내측 제1암거의 사면모서리 부분에 철판(12)이 고정되어 있고 또한 제2암거의 사면모서리 부분에 철판(22)이 고정되어 맞대어진 철판(12)(22)이 용접에 의해 결합된다.The first culvert 10 and the second culvert 20 according to the present invention consists of a basic through-shaped rectangular shape and forms a concave end portion 11 and a protruding end portion 21 of the first culvert 10 and correspond to each other. The iron plate 12 is fixed to the inclined corner portion of the inner first culvert of the through type, and the iron plate 12 and 22 is welded to the butt edge portion of the second culvert. Are combined by.

또한 제1암거(10)의 하부외면을 제외한 벽체 및 상부슬래브 외면에 브라켓(30)과 제2암거(20)의 동일위치 삼면에 브라켓(40)을 강봉(50)과 정착장치(31)(41)를 이용하여 결합한다. 이 때 정착장치(31)(41)는 외력에 상응하는 하중을 도입하여 제1암거(10)과 제2암거(20)을 압착시키는 역할을 한다.In addition, the bracket 40 and the steel bar 50 and the fixing device 31 (3) on the same position of the bracket 30 and the second culvert 20 on the outer surface of the wall and the upper slab except the lower outer surface of the first culvert 10 Using 41). At this time, the fixing device 31, 41 serves to compress the first culvert 10 and the second culvert 20 by introducing a load corresponding to the external force.

상기한 바와 같은 구성을 갖는 본 고안에 대한 조립식 프리스트레스트 콘크리트 암거의 조립상태를 도1을 참조하여 설명한다.The assembled state of the prefabricated prestressed concrete culvert for the present invention having the configuration as described above will be described with reference to FIG.

본 고안에 따른 조립식 제1암거(10) 및 제2암거(20)을 설치하기 위해서는 먼저 필요한 길이만큼의 암거를 몇 개 설치하는지 설정하게 되며 제1암거(10) 및 제2암거(20)는 동일크기의 규격품으로 전체연장에 따라 사용 갯수를 선택하여 설치하게 된다.In order to install the prefabricated first culvert 10 and the second culvert 20 according to the present invention is first set how many culverts of the required length to be installed and the first culvert 10 and the second culvert 20 It is a standard product of the same size and it is selected and installed according to the total extension.

상기 제1암거(10)는 암거의 단부사면에 오목단부(11)와 돌출단부(21)를 형성하여 규격화된 제1암거(10)와 제2암거(20)를 반복적으로 조립하게 된다.The first culvert 10 forms a concave end portion 11 and a protruding end portion 21 on an end slope of the culvert to repeatedly assemble the standardized first culvert 10 and the second culvert 20.

제1암거(10)와 제2암거(20)가 1차 가조립된 상태는 오목단부(11)와 돌출단부(21)의 결합에 의해 유격이 크지 않으므로 제1암거의 내측 사면모서리 부분의 고정된 철판(12)과 제2암거의 내측 사면모서리 부분의 철판(22)이 용접으로 결합될 수 있는 2차 가조립의 형태를 제공하게 된다. 벽체 및 상부슬래브는 필요에 따른 하부 헌치부위에 브라켓(30)과 제2암거의 동일한 위치에 브라켓(40)을 강봉(50)으로 연결하고 정착장치(31)(41)에 의해 압축시켜 제1암거(10)와 제2암거(20)는 미세틈을 제외한 긴밀한 상태로 압착하게 된다.In the state in which the first culvert 10 and the second culvert 20 are first assembled, the clearance is not large due to the combination of the concave end 11 and the protruding end 21. The iron plate 12 and the iron plate 22 of the inner slope edge portion of the second culvert provide a form of secondary prefabrication that can be joined by welding. The wall and the upper slab connect the bracket 40 with the steel bar 50 at the same position of the bracket 30 and the second culvert on the lower haunting portion as needed, and compress it by the fixing device 31, 41. The culvert 10 and the second culvert 20 are compressed in an intimate state except for a microgap.

이 과정을 반복적으로 진행하여 필요량만큼의 조립식 프리스트레스트 콘크리트 암거를 반복적으로 부설하여 완성하게 된다.This process is repeated to complete the prefabricated prestressed concrete culvert as much as necessary.

외부의 미세틈은 실런트(60)를 주입하여 미세틈마저 차단하며 정착장치를 이용하여 압착된 조립식 프리스트레스트 콘크리트 암거(10)(20)는 외력에 의한 변형을 억제하며 철판으로 용접 연결된 내측부위는 누수 및 우수, 지하수의 유입을 차단하는 역할을 하게된다.The external micro-gap is injected into the sealant 60 to block even the micro-gap, and the prefabricated prestressed concrete culvert 10 (20) compressed using the fixing device suppresses deformation due to external force and the inner part welded with the steel plate is It acts to block leakage, rainwater and groundwater inflow.

이상에서 설명한 바와 같이 본 고안에 의하면 제1암거 및 제2암거는 긴밀하게 압착되어지므로 연직하중 및 수평하중에 의한 평면 및 종단면의 변형을 억제할 수 있으며 1차, 2차 가조립을 시행하여 시공시 조립식 프리스트레스트 콘크리트 암거 연결부위의 정밀도를 향상시키고 맞댄 철판용접 이음은 지수가 아닌 완전방수를 실현하며, 암거의 영구적인 기능을 확보하므로 현장 시공시 문제점으로 지적되는 연결부위의 취약점을 극복하는 매우 유용한 고안인 것이다. As described above, according to the present invention, since the first and second culverts are tightly compressed, the deformation of the plane and the longitudinal section due to the vertical load and the horizontal load can be suppressed. Improved precision of prefabricated precast concrete culvert joints, butt-plate welding joints realize perfect waterproofing, not exponential, and secure permanent function of culverts. It is an idea.

Claims (3)

사각관 형상인 한조의 암거 (10), (20)의 양측 선단이 서로 대응하면서 끼워지도록 오목단부(11)와 돌출단부(21)가 형성되며 이는 암거의 슬래브 및 벽체두께의 중앙부에 형성되는 암거의 1차 가조립에 있어서The concave end portion 11 and the protruding end portion 21 are formed so that both ends of the pair of culverts 10 and 20 having a rectangular tube shape correspond to each other and are formed at the center of the slab and wall thickness of the culvert. In the first preliminary assembly of 제1암거 사면 단부 모서리 부분의 철판(12)과 제2암거 사면 단부 모서리 즉 제1암거 및 제2암거의 동일위치에 맞대어져 고정되어지는 철판(22)의 용접에 있어서In the welding of the iron plate 12 of the edge portion of the first culvert slope and the iron plate 22 fixed to the same position of the edge of the second culvert slope, that is, the first culvert and the second culvert 제1암거의 브라켓(30)과 제2암거의 브라켓(40)이 강봉(50)과 정착장치(31) (41)에 의해서 조립되는 암거의 외적 변형방지 및 방수를 목적으로 하는 조립식 프리스트레스트 콘크리트 암거Prefabricated prestressed concrete for the purpose of preventing external deformation and waterproofing of the culvert where the bracket 30 of the first culvert 30 and the bracket 40 of the second culvert are assembled by the steel rod 50 and the fixing device 31, 41. culvert
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489168A (en) * 2017-06-20 2017-12-19 中南大学 A kind of staggered joint erection comprehensive pipe gallery structure based on prestress system
CN108331016A (en) * 2017-12-21 2018-07-27 吉林省天祥建筑材料有限公司 Half rigid half soft formula bell and spigot connection structure of precast assembly piping lane and method
CN110130355A (en) * 2018-02-08 2019-08-16 中国二十冶集团有限公司 Base plate of foundation pit post-cast strip force transferring structure and its construction method
CN110805067A (en) * 2019-11-21 2020-02-18 孙浩睿 Pipe gallery and construction method
CN113789811A (en) * 2021-09-16 2021-12-14 北京科技大学 Temporary fastening connection system for prefabricated large components
KR102473812B1 (en) * 2022-03-04 2022-12-05 주식회사 자인이씨엘 Prefabricated PC culvert

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107489168A (en) * 2017-06-20 2017-12-19 中南大学 A kind of staggered joint erection comprehensive pipe gallery structure based on prestress system
CN108331016A (en) * 2017-12-21 2018-07-27 吉林省天祥建筑材料有限公司 Half rigid half soft formula bell and spigot connection structure of precast assembly piping lane and method
CN110130355A (en) * 2018-02-08 2019-08-16 中国二十冶集团有限公司 Base plate of foundation pit post-cast strip force transferring structure and its construction method
CN110805067A (en) * 2019-11-21 2020-02-18 孙浩睿 Pipe gallery and construction method
CN110805067B (en) * 2019-11-21 2021-04-02 孙浩睿 Pipe gallery and construction method
CN113789811A (en) * 2021-09-16 2021-12-14 北京科技大学 Temporary fastening connection system for prefabricated large components
CN113789811B (en) * 2021-09-16 2022-04-26 北京科技大学 Temporary fastening connection system for prefabricated large components
KR102473812B1 (en) * 2022-03-04 2022-12-05 주식회사 자인이씨엘 Prefabricated PC culvert

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