KR20030093680A - The construction method of double-t girder bridge by underslung movable scaffolding system - Google Patents

The construction method of double-t girder bridge by underslung movable scaffolding system Download PDF

Info

Publication number
KR20030093680A
KR20030093680A KR1020020031482A KR20020031482A KR20030093680A KR 20030093680 A KR20030093680 A KR 20030093680A KR 1020020031482 A KR1020020031482 A KR 1020020031482A KR 20020031482 A KR20020031482 A KR 20020031482A KR 20030093680 A KR20030093680 A KR 20030093680A
Authority
KR
South Korea
Prior art keywords
formwork
moving
bridge
installing
span
Prior art date
Application number
KR1020020031482A
Other languages
Korean (ko)
Inventor
이만섭
이기철
이대우
김태형
이익선
박영진
Original Assignee
브이에스엘코리아 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 브이에스엘코리아 주식회사 filed Critical 브이에스엘코리아 주식회사
Priority to KR1020020031482A priority Critical patent/KR20030093680A/en
Publication of KR20030093680A publication Critical patent/KR20030093680A/en

Links

Abstract

PURPOSE: A construction method for a double-T bridge by an underslung movable scaffolding system is provided to improve constructability and to shorten a period of construction by automation using mechanical equipment. CONSTITUTION: The construction method for a double-T bridge by an underslung movable scaffolding system comprises the steps of: after installing a rail for moving a reinforcement jig on a pre-installed bridge, installing a reinforcement jig on the center of the pre-installed bridge; arranging reinforcing bars per span to fit on the installed reinforcement jig, then assembling a sheath tube; if the assembly of reinforcing bars and sheath tubes is completed, executing an inspection; lifting up the reinforcement jig to a box girder installed for concrete on the next span using a hoist(10) of a gantry crane(11) installed on a bridge; installing the lifted reinforcement jig to a movable scaffolding form using a hoist(10); after placing concrete, moving the whole equipment using a main jack to descend an outer form(1) and an inner form(2) downward; removing a strut(12), a turn buckle(13) and a pin(14) fixed on the from to dismantle the inner form(2); after removing the steel rod fixed on a joint of a cross beam(4), moving the whole form from side to side using a hydraulic jack attached to the cross beam(4); widening the box girder(5) and the whole form from side to side using a hydraulic jack attached to a pier bracket(7) to get ready for moving a movable scaffolding system; and moving the outer form(1) and the inner form(2) to the next span simultaneously using a shift unit(6) installed on the pier bracket(7).

Description

하부지지형 이동식 비계공법에 의한 더블-티 교량의 시공방법 {The construction method of double-t girder bridge by underslung movable scaffolding system}Construction method of double-t girder bridge by underslung movable scaffolding system

본 발명은 이동식 비계공 더블-티 교량의 시공시 경간 단위로 철근을 선조립(Prefabrication)하여 설치하는 시스템과 외부거푸집(1)과 내부거푸집(2) 동시이동 및 거푸집의 조립·해체시 기계적 장비에 의한 자동화 시스템을 도입함으로서, 시공성 향상과 공사기간을 단축하는 시공방법에 관한 것이다.The present invention relates to a system for prefabricating and installing reinforcing bars in span units during construction of a mobile non-porous double-tee bridge, and to mechanical equipment during simultaneous movement and assembly and disassembly of external formwork (1) and internal formwork (2). The present invention relates to a construction method that improves workability and shortens construction period by introducing an automated system.

일반적인 이동식 비계공 형식의 교량은 1단계 비계보 및 외부거푸집 셋팅 및 검측; 2단계 바닥슬래브 철근, 벽체 철근, 쉬이스관 조립 및 설치; 3단계 내부거푸집 설치; 4단계 상부슬래브 철근을 조립·설치; 5단계 캠버조정 완료 후 콘크리트 타설 및 양생; 6단계 내부 강연선을 인장하는 단계; 7단계 후방 교각 브래킷 1조를 해체하여 전방이동방향으로 옮겨서 교각에 설치 단계; 8단계 거푸집 해체를 위한 준비작업 단계; 9단계 외부거푸집(1) 해체작업 단계; 10단계 외부거푸집(1) 및 이동식 비계공 장비 이동 단계; 11단계 내부거푸집(2) 해체 및 외부거푸집(1) 셋팅 작업 단계; 12단계 내부거푸집(2) 이동 및 셋팅 작업 단계로 12단계 공정으로 이루어져 공정별 검측시간과 작업시간이 많이 소요되었다.Typical mobile scaffold type bridges include one-stage scaffolding and external formwork setting and inspection; Assembly and installation of two-stage floor slab reinforcement, wall reinforcement and sheath pipe; 3-step internal formwork installation; Assembly and installation of four-stage upper slab rebar; Concrete finishing and curing after completion of the 5th step of camber adjustment; Tensioning the sixth internal strand; Step 7 Disassemble one set of rear piercing brackets and move them in the forward direction to install them in the piers; 8th stage preparation work for dismantling formwork; 9 steps of external formwork (1) dismantling work step; 10 steps to move the external formwork (1) and mobile non-pore equipment; 11 steps of disassembling the inner formwork and setting the outer formwork (1); The 12-step internal formwork (2) moving and setting work step was composed of 12-step process, it took a lot of detection time and work time by process.

철근의 조립·설치는 외부거푸집 설치 후 철근을 조립하는 방법과 기 시공된 교량 상면이나, 교량하부 공간에 3∼5m 단위로 복부와 하부플랜지 철근을 미리 배치시킨 철근지그장을 만들어 다음 시공구간에 크레인등으로 조립된 철근을 운반하여 외부거푸집 위에 배열시키고 최종철근을 배치하는 방법을 주로 사용하였다.Assembling and installing the reinforcing bar is done by assembling the reinforcing bar after installing the external formwork, and by making the reinforcing jig site in which the abdominal and lower flange rebars are arranged in 3 ~ 5m units on the upper surface of the bridge or under the bridge. The method of transporting reinforcing bars assembled with cranes and arranging them on the external formwork and arranging the final reinforcing bars was mainly used.

그러나, 철근을 3∼5m 간격으로 선조립하여 쓸 경우 쉬이스관 및 철근에 이음부가 많이 발생하며, 3∼5m 단위로 운반되어진 철근끼리의 연결을 위한 추가작업이 필요로 하게된다. 또한, 운반·설치공정 횟수의 증가 및 장비의 추가 소요로 인해 시공성 및 경제적 측면에서 불합리한 점이 있었다.However, when pre-assembled rebars are used at intervals of 3 to 5 m, many joints are generated in the case pipe and reinforcing bars, and additional work for connecting the rebars carried in units of 3 to 5 m is required. In addition, due to the increase in the number of transportation and installation processes and additional equipment, there were unreasonable points in terms of workability and economics.

특히 더블-티 교량의 경우 벽체 하단부의 폭이 좁아 거푸집 내에서의 직접적인 철근의 조립·설치가 어려우며, 이로 인해 시공성 저하와 공기증가의 요인으로 작용하였다.In particular, in the case of the double-tee bridge, the width of the lower part of the wall is narrow, making it difficult to assemble and install the reinforcing bar directly in the formwork.

또한 7단계 교각 브래킷(7)의 해체, 이동시와 11, 12단계 내부거푸집(2)의 해체 이동시에 별도의 장비를 이용하거나 이동장치와 레일을 미리 설치해야만 했다.In addition, the dismantling and moving of the seventh stage piercing bracket (7) and the dismantling and moving of the 11 and 12-stage inner formwork (2) had to use separate equipment or to install the moving device and the rail in advance.

상기와 같이 내부거푸집(2) 및 외부거푸집(1)을 별도로 운영함에 따른 소요공정의 추가로 작업공기가 증가하며, 중장비의 동원으로 인한 소요공기 및 공사비가 증가하였다. 또한, 선공정이 잘못되었을 경우 검측시간의 증가로 다른 공정을 진행할 수 없어 공기에 막대한 지장을 초래하였다.As described above, the additional work required for operating the internal formwork (2) and the external formwork (1) is increased, and the required air and construction costs are increased due to the mobilization of heavy equipment. In addition, when the pre-process is wrong, the increase of the detection time can not proceed with other processes, which causes enormous disruption to the air.

경간 단위로 철근을 선조립(Prefabrication)하여 설치하는 시스템과 외부거푸집(1)과 내부거푸집(2)을 동시이동하는 시스템 및 거푸집의 조립·설치시 종래의 중장비에 의존했던 작업을 자동화하는 시스템을 도입함으로서 시공성향상과 공사기간을 단축할 수 있는 시공방법을 제공함에 목적이 있다.A system for prefabricating and installing rebar in span units, a system for moving external formwork (1) and internal formwork (2) simultaneously, and a system for automating tasks that depended on conventional heavy equipment when assembling and installing formwork. The purpose is to provide construction methods that can improve construction performance and shorten construction period.

경간단위로 철근을 선조립하는 시스템은 기 타설된 교량상부의 철근 제작장에서 경간 단위로 철근 및 쉬이스관을 조립하는 단계와; 다음 경간 콘크리트 타설을 위해 설치되어 있는 비계보까지 교량상부에 설치된 문형크레인(11)의 호이스트(Hoist, 10)를 이용하여 철근을 리프팅한 후, 이동·설치하는 단계로 이루어지는 것을 특징으로 한다.A system for pre-assembling reinforcing bar by span unit includes assembling reinforcing bar and sheath pipe in span unit in reinforcing bar fabrication of other bridges; Next, after lifting the reinforcing bar using the hoist (Hoist, 10) of the door-shaped crane (11) installed on the bridge to the scaffold that is installed for the concrete placing, characterized in that the step consisting of moving and installing.

외부거푸집(1)과 내부거푸집(2)을 동시이동하는 시스템 및 거푸집의 조립·해체시 기계적 장비에 의한 시공자동화 시스템은 콘크리트 타설 후 메인잭을 이용하여 장비 전체를 하향으로 이동시켜 외부거푸집(1)과 내부거푸집(2)을 아래로 내리는 단계와; 내부거푸집(2)을 해체하기 위하여 거푸집에 고정된 버팀대(12)/턴버클(Turn buckle)(13)/핀(14)등을 제거하는 단계와; 내부거푸집(2)을 유압잭을 이용하여 자동으로 탈형시키고 탈형된 내부거푸집(2)을 가로보(4)에 거치시키는 단계와; 가로보(4) 연결부에 고정된 강봉을 제거한 다음, 가로보(4)에 부착된 유압잭을 이용하여 거푸집전체를 좌·우로 이동시키는 단계와; 교각브래킷(7)에 부착된 유압잭을 이용하여 비계보(5)와 거푸집전체를 자동으로 좌, 우측으로 벌려서 이동식 비계공장비의 이동준비를 완료하는 단계와; 교각브래킷(7)에 설치된 이동장치(6)를 이용하여 외부거푸집(1)과 내부거푸집(2)을 다음 경간으로 동시에 이동시킨다.The system that moves the external formwork (1) and the internal formwork (2) at the same time and the construction automation system by the mechanical equipment when assembling and disassembling the formwork moves the entire equipment downward by using the main jack after the concrete is placed. ) And lowering the inner formwork (2); Removing braces 12 / turn buckle 13 / pins 14, etc. fixed to the formwork to dismantle the inner formwork 2; Automatically demolding the internal formwork (2) using a hydraulic jack and mounting the demolded internal formwork (2) on the crossbeam (4); Removing the steel bar fixed to the crossbeam 4 and then moving the formwork whole to the left and right by using a hydraulic jack attached to the crossbeam 4; Automatically spreading the scaffold 5 and the formwork to the left and the right by using a hydraulic jack attached to the bridge bracket 7 to complete the preparation for moving the scaffolding equipment; The outer formwork 1 and the inner formwork 2 are simultaneously moved to the next span by using the moving device 6 installed on the bridge bracket 7.

도1은 본 발명의 하부지지형 이동식 비계공단면도 1 is a cross-sectional bottom support mobile scaffolding of the present invention

도2은 본 발명에 의한 하부지지형 이동식 비계공 구성도 Figure 2 is a bottom support type mobile scaffold configuration according to the present invention

도3은 본 발명에 의한 외부거푸집과 내부거푸집을 자동으로 해체하는 순서도 Figure 3 is a flow chart for automatically dismantling the external formwork and the internal formwork according to the present invention

도4은 본 발명에 의한 철근지그장 정면도 및 측면도 4 is a front view and a side view of a reinforcing jig seat according to the present invention;

도5은 본 발명에 의한 철근지그의 운반과 설치 순서도 5 is a flow chart of the transportation and installation of the reinforcing jig according to the present invention.

도6은 본 발명에 의한 철근지그의 운반, 설치 단면도 Figure 6 is a transport, installation cross section of the reinforcing jig according to the present invention

도7은 종래의 하부지지형 이동식 비계공 단면도 Figure 7 is a cross-sectional view of a conventional lower support mobile scaffold

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

1. 외부거푸집(Outer Form) 1. Outer Form

2. 내부거푸집(Inner Form) 2. Inner Form

3. 바닥거푸집(Bottom Form) 3. Bottom Form

4. 가로보(Cross Beam) 4. Cross Beam

5. 비계보(Box Girder, Truss Girder) 5. Box Girder, Truss Girder

6. 이동장치(Moving Unit) 6. Moving Unit

7. 교각 브래킷(Pier Bracket) 7. Pier Bracket

8. 철근지그(Reinforcement Jig) 8. Reinforcement Jig

9. 스프레더빔(Spreader Beam) 9. Spreader Beam

10. 호이스트(Hoist) 10. Hoist

11. 문형크레인(Gantry Crane) 11.Gantry Crane

첨부한 도면, 도4은 본 발명에 의한 철근지그장 정면도 및 측면도이며, 도5은 본 발명에 의한 철근지그(8)의 운반과 설치 순서도이고, 도6은 본 발명에 의한 철근지그(8)의 운반, 설치 단면도이다.4 is a front view and a side view of a reinforcing jig seat according to the present invention, FIG. 5 is a flow chart of a rebar jig 8 according to the present invention, and FIG. 6 is a rebar jig 8 according to the present invention. ) Transport and installation cross section.

본 발명은 상기 도면에서 도시하는 바와 같이 레일(22)위에 철근지그장을 설치하여, 경간단위로 철근을 조립한 후 문형크레인(11)으로 철근지그(8)을 운반, 설치하는 형식으로 콘크리트 타설, 강연선 인장, 비계보(5), 교각 브래킷(7) 해체, 이동을 하는 동안 다음 경간의 철근을 미리 조립하는 방식이며 그 자세한 시공방법을 시계열적으로 기술하면 다음과 같다.The present invention is to install a reinforcing jig seat on the rail 22, as shown in the drawings, to assemble the reinforcement in the span unit, and then to cast the concrete in the form of transporting and installing the reinforcing jig 8 to the door-shaped crane (11) During the dismantling and movement of strand strands, scaffolds (5), and piercing brackets (7), the rebars of the next span are preassembled. The detailed construction method is as follows.

먼저 기 타설된 교량(23) 상부에 철근 지그 이동용 레일(22)을 설치한 후, 기 타설된 교량상부 중앙에 철근 지그장을 설치한다. 이 철근 지그장은 조립된 철근을 운반하기 위한 문형크레인(11)이 설치되어있으며, 설치된 철근 지그에 맞춰 경간 단위로 철근을 배근한 후 쉬이스관을 조립한다.First, the reinforcing jig movement rail 22 is installed on the other bridge 23, and then the reinforcing jig field is installed in the center of the other bridge. This reinforcing jig is installed door-type crane (11) for transporting the assembled reinforcing bar, and reinforce the bar by the span unit in accordance with the installed reinforcing jig to assemble the case pipe.

철근 및 쉬이스관의 조립이 완료되면 검측을 실시한 후, 지그 운반 준비를 한다. 이때, 레일(22) 상부에서 철근 지그(8) 상부 높이까지 이동로에 어떠한 간섭물도 있어서는 안되며, 레일(22) 사이 일정간격 유지 및 레일면이 고르게 유지될 수 있어야 한다. 또한, 철근 지그(8) 이동시 탈선방지장치 및 레일 끝단에 고정용 스토퍼를 설치하여 철근 지그(8)의 브레이크 고장시 레일 이탈을 방지할 수 있도록 한다.When the rebar and sheath pipe are assembled, the inspection is performed and the jig is prepared for transportation. At this time, there should not be any interference in the moving path from the upper rail 22 to the upper height of the reinforcing jig 8, it should be able to maintain a constant interval between the rail 22 and the rail surface evenly. In addition, when the reinforcing jig 8 is moved, a derailment preventing device and a fixing stopper may be installed at the rail end to prevent the rail from falling off when the rebar jig 8 breaks.

운반 준비가 끝나면 철근 지그(8)를 교량(23)상부에 설치된 문형크레인(11)의 호이스트(10)로 철근 지그내의 스프레더빔(9)에 체결하여 리프팅 한다. 리프팅된 철근 지그(8)를 셋팅된 이동식 비계공 거푸집(100)에 설치한다. 상기와 같은 반복 공정으로 시공성과 공사기간을 기존 방식에 비해 상당부분 단축시킬 수 있으며, 철근조립을 경간 단위로 시공함에 따라 철근 및 쉬이스관의 이음부를 최소화할 수 있어 교량의 시공품질향상을 통한 교량의 내구성 증진에도 기여한다.When the preparation for transportation is completed, the reinforcing jig 8 is fastened to the spreader beam 9 in the reinforcing jig by the hoist 10 of the door-shaped crane 11 installed on the bridge 23 and lifted. The lifted reinforcing jig 8 is installed in the set movable non-pore formwork 100. By repeating the above process, construction and construction period can be shortened considerably compared with the existing method, and the construction of reinforcing bars can be minimized by improving the construction quality of bridges. It also contributes to increased durability.

외부거푸집(1)과 내부거푸집(2)을 동시이동하는 시스템 및 거푸집의 조립·설치 작업을 자동화하는 시스템의 구성은 다음과 같다. 이하 첨부한 도면을 참조한 상세한 설명으로 본 발명의 구체적인 특징 및 이점은 더욱 명확해 질 것이다. 첨부한 도면, 도7은 기존의 하부지지형 이동식 비계공 단면도이고, 도1은 본 발명에 의한 하부지지형 이동식 비계공의 단면도이며, 도2는 본 발명에 의한 하부지지형 이동식비계공의 구성도이고, 도3은 본 발명에 의한 외부거푸집(1)과 내부거푸집(2)을 자동으로 해체하는 순서도이다.The configuration of the system for simultaneously moving the external formwork 1 and the internal formwork 2 and the system for automating the assembly and installation work of the formwork is as follows. Detailed features of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings. 7 is a cross-sectional view of a conventional lower support mobile scaffold, FIG. 1 is a cross-sectional view of a lower support movable scaffold according to the present invention, FIG. 2 is a configuration diagram of a lower support movable scaffold according to the present invention, and FIG. It is a flow chart which automatically dismantles the external formwork 1 and the internal formwork 2 according to the present invention.

본 발명은 상기 도면에서 도시하는 바와 같이 비계보 상단에 설치된 가로보(4)에 바닥거푸집(3)을 설치하여 그 거푸집에 내부거푸집(2)까지 포함하는 2중거푸집 형태로 이루어져 이동식 비계공 장비 이동시 외부거푸집(1)과 내부거푸집(2)이 동시에 이동할 수 있으며 거푸집의 조립·해체시 기계적 장비에 의한 자동화 시스템으로 그 자세한 시공방법을 시계열적으로 기술하면 다음과 같다. 먼저 콘크리트 타설 후 메인잭을 이용하여 장비 전체를 하향으로 이동시켜 외부거푸집(1)과 내부거푸집(2)을 아래로 내린다. 내부거푸집(2)을 해체하기 위하여 거푸집에 고정된 버팀대(12)/턴버클(Turn buckle)(13)/핀(14)등을 제거한다. 그리고 내부거푸집(2)을 유압잭을 이용하여 자동으로 탈형시키고 탈형된 내부거푸집(2)을 가로보에 거치시킨다. 가로보(4) 연결부에 고정된 강봉을 제거한 다음, 가로보(4)에 부착된 유압잭을 이용하여 내,외부 및 바닥 거푸집(1)(2)(3)전체를 좌·우로 이동시킨다. 교각브래킷(7)에 부착된 유압잭을 이용하여 비계보(5)와 거푸집전체를 자동으로 좌, 우측으로 벌려서 이동식 비계공 장비의 이동준비를 마친다. 교각브래킷(7)에 설치된 이동장치(6)를 이용하여 외부거푸집(1)과 내부거푸집(2)을 다음 경간으로 동시에 이동시킨다. 이동식 비계공 장비 이동시 상기와 같은 반복 공정을 통해 작업성을 향상시키고 공기를 기존 방식에 비해 상당부분 단축시킬 수 있다.The present invention is installed in the form of the bottom formwork (3) on the horizontal beam (4) installed on the upper side of the scaffolding as shown in the figure consists of a double formwork including up to the inner formwork (2) to the outside when moving the mobile scaffolding equipment The formwork (1) and the internal formwork (2) can be moved at the same time, and the detailed construction method is described in time series as an automated system by mechanical equipment when assembling and disassembling the formwork. First, after placing concrete, the entire jack is moved downward by using the main jack to lower the external formwork (1) and the internal formwork (2). In order to dismantle the internal formwork (2), remove the brace (12) / turn buckle (13) / pin (14) fixed to the formwork. Then, the inner die 2 is automatically demolded using a hydraulic jack, and the demolded inner die 2 is mounted on the cross beam. After removing the steel bar fixed to the cross beam (4) connection portion, using the hydraulic jack attached to the cross beam (4) to move the entire inner, outer and bottom formwork (1) (2) (3) to the left and right. Using the hydraulic jack attached to the pier bracket (7) to open the scaffold (5) and the formwork whole automatically left and right to finish the movement of the mobile scaffolding equipment. The outer formwork 1 and the inner formwork 2 are simultaneously moved to the next span by using the moving device 6 installed on the bridge bracket 7. When the mobile non-pore equipment is moved, the repeatability process as described above can improve workability and significantly shorten the air compared to the conventional method.

이상의 명백한 설명과 같이 본 발명에 의한 이동식 비계공 더블-티 교량의 시공시 교량의 경간 단위로 철근을 선조립하여 설치하는 시스템과 외부거푸집과 내부거푸집을 동시이동 및 거푸집의 조립·해체시 기계적 장비에 의한 자동화 시스템의 도입은 이동식 비계공 장비의 효율적인 이용으로 작업인원과 중장비사용을 감소시킬 수 있으며, 또한 공사기간을 단축시킬 수 있고, 이를 통하여 시공성과 경제성을 향상시킬 수 있다.As described above, in the construction of a mobile non-porous double-tee bridge according to the present invention, a system for pre-assembling and installing reinforcing bars in the span unit of a bridge, and simultaneously moving and removing external formwork and internal formwork to mechanical equipment during assembly and disassembly of formwork The introduction of an automated system can reduce the number of workers and heavy equipment through efficient use of mobile non-machinery equipment, and also shorten the construction period, thereby improving construction and economic efficiency.

Claims (1)

  1. 더블-티 교량을 이동식 비계공법으로 시공함에 있어서, In constructing double-tee bridges by mobile scaffolding,
    먼저 기 타설된 교량(23) 상부에 철근 지그 이동용 레일(22)을 설치한 후, 기 타설된 교량상부 중앙에 철근 지그장을 설치는 단계와; First installing the reinforcing jig moving rails 22 on the top of the other bridge 23, and installing the reinforcing jig field in the center of the top of the other bridge;
    설치된 철근 지그(18)에 맞춰 경간 단위로 철근을 배근 한 후 쉬이스관을 조립하는 단계와; Assembling the sheath pipe after reinforcing the bars in the unit of span in accordance with the installed reinforcing jig 18;
    철근 및 쉬이스관의 조립이 완료되면 검측을 실시하는 단계와; Performing the inspection when the reinforcing bars and the sheath pipe are assembled;
    운반 준비가 끝나면 철근 지그(8)를 다음 경간 콘크리트 타설을 위해 설치되어 있는 비계보까지 교량상부에 설치된 문형크레인(11)의 호이스트(10)를 이용하여 철근을 리프팅한 후, 이동하는 단계와; After the preparation for transporting the reinforcing jig (8) to lift the reinforcement using the hoist (10) of the door-shaped crane (11) installed on the bridge to the scaffold that is installed for the next span concrete pouring, and then moving;
    리프팅된 철근 지그(8)를 호이스트(10)를 이용하여 셋팅된 이동식 비계공 거푸집에 설치단계와, A step of installing the lifted reinforcing jig (8) to a movable non-pore formwork set using the hoist (10),
    콘크리트 타설 후 메인잭을 이용하여 장비 전체를 하향으로 이동시켜 외부거푸집(1)과 내부거푸집(2)을 아래로 내리는 단계와 After pouring concrete, move the whole equipment downward by using the main jack to lower the external formwork (1) and the internal formwork (2) and
    내부거푸집(2)을 해체하기 위하여 거푸집에 고정된 버팀대(12)/턴버클(Turn buckle)(13)/핀(14)등을 제거하는 단계와; Removing braces 12 / turn buckle 13 / pins 14, etc. fixed to the formwork to dismantle the inner formwork 2;
    내부거푸집을 유압잭을 이용하여 자동으로 탈형시키고 탈형된 내부거푸집(2)을 가로보에 거치시키는 단계와; Automatically demolding the internal formwork using a hydraulic jack and placing the demolded internal formwork 2 on the cross beam;
    가로보(4) 연결부에 고정된 강봉을 제거한 다음, 가로보(4)에 부착된 유압잭을 이용하여 거푸집전체를 좌·우로 이동시키는 단계와; Removing the steel bar fixed to the crossbeam 4 and then moving the formwork whole to the left and right by using a hydraulic jack attached to the crossbeam 4;
    교각브래킷(7)에 부착된 유압잭을 이용하여 비계보(5)와 거푸집전체를 자동으로 좌·우로 벌려서 이동식 비계공 장비의 이동준비를 완료하는 단계와; Using the hydraulic jacks attached to the bridge brackets 7 to automatically open the scaffold 5 and the formwork to the left and right to complete the preparation of the moving scaffolding equipment;
    교각브래킷(7)에 설치된 이동장치(6)를 이용하여 외부거푸집(1)과 내부거푸집(2)을 다음 경간으로 동시에 이동하는 단계로 이루어진 것을 특징으로 하는 하부지지형 이동식비계공법에 의한 더블-티를 시공하는 방법Double-tees by a bottom-supported mobile scaffolding method, comprising the steps of simultaneously moving the outer formwork 1 and the inner formwork 2 to the next span by using the moving device 6 installed on the bridge bracket 7. How to construct
KR1020020031482A 2002-06-05 2002-06-05 The construction method of double-t girder bridge by underslung movable scaffolding system KR20030093680A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020031482A KR20030093680A (en) 2002-06-05 2002-06-05 The construction method of double-t girder bridge by underslung movable scaffolding system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020031482A KR20030093680A (en) 2002-06-05 2002-06-05 The construction method of double-t girder bridge by underslung movable scaffolding system

Publications (1)

Publication Number Publication Date
KR20030093680A true KR20030093680A (en) 2003-12-11

Family

ID=32385941

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020031482A KR20030093680A (en) 2002-06-05 2002-06-05 The construction method of double-t girder bridge by underslung movable scaffolding system

Country Status (1)

Country Link
KR (1) KR20030093680A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100907141B1 (en) * 2008-07-17 2009-07-09 조영철 Mobile crane installation structure and method for replacing an upper structure of a railway bridge using the same
CN101831872A (en) * 2010-05-12 2010-09-15 重庆城建控股(集团)有限责任公司 Front and rear fulcrum combined cradle
CN102022001A (en) * 2010-12-28 2011-04-20 北京中铁房山桥梁有限公司 Integrated binding and locating device of single-box double-chamber full span box girder reinforcing steel bar
CN102134833A (en) * 2011-02-21 2011-07-27 中国一冶集团有限公司 Construction method for hoisting and disassembling bailey truss
CN102134832A (en) * 2011-01-18 2011-07-27 中铁大桥局集团第五工程有限公司 Movable support and movable support assisted method for erecting steel box beams through non-variable amplitude frame beam crane
CN102182150A (en) * 2011-04-20 2011-09-14 中国十七冶集团有限公司 Installation method of externally hung steel template for anti-collision guardrail construction outside viaduct
CN102797226A (en) * 2012-07-26 2012-11-28 中铁六局集团有限公司 Integral erection construction method of 60m steel box girder
CN104259447A (en) * 2014-10-11 2015-01-07 江苏圣乐机械有限公司 T beam mould moving device and use method thereof
CN104695335A (en) * 2015-01-15 2015-06-10 中铁四局集团第二工程有限公司 Overall reinforcement binding and hoisting construction method and construction device adopting upstroke movable scaffolding
CN105386411A (en) * 2015-12-14 2016-03-09 中交一公局第三工程有限公司 Multifunctional portal device of suspension bridge pillar top
CN105696609A (en) * 2016-03-02 2016-06-22 中建三局基础设施工程有限公司 Steel hanging box lowering system and installation method thereof
CN106677076A (en) * 2017-03-03 2017-05-17 中交公局第工程有限公司 Simple and rapid method and device for mounting box girder at the top of adjacent bent cap by using span pier gantry crane
CN107227687A (en) * 2017-06-09 2017-10-03 中铁建大桥工程局集团第五工程有限公司 Balanced system of force high-altitude crossbar bracket construction method
CN107687132A (en) * 2017-09-29 2018-02-13 中交第二航务工程局有限公司 The method that equidistant double width bridge uses Segmental assembling bridge-erecting machine synchronous construction
CN107867300A (en) * 2017-10-16 2018-04-03 四川路桥桥梁工程有限责任公司 A kind of rail flat car that beam is transported on steel truss girder main framing
CN109056559A (en) * 2018-09-04 2018-12-21 长江师范学院 A kind of bridge beam body lifting method based on bent cap
CN110042743A (en) * 2019-05-05 2019-07-23 陕西路桥集团有限公司 The hydraulic climbing die block system of twin legged thin wall hollow pier with synchronize climb construction technology
CN110042761A (en) * 2019-05-05 2019-07-23 陕西路桥集团有限公司 A kind of 0# block bracket prestress prepressing engineering method
CN110626957A (en) * 2019-09-29 2019-12-31 中铁大桥局集团第六工程有限公司 Method for installing cable crane
CN110626943A (en) * 2019-10-10 2019-12-31 中铁一局集团有限公司 Special chassis of inverted gantry crane for single-line T-beam bridge and mounting method
WO2020233501A1 (en) * 2019-05-23 2020-11-26 中铁二局集团有限公司 Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100511U (en) * 1979-12-27 1981-08-07
JPS5989108U (en) * 1982-12-07 1984-06-16
US4909474A (en) * 1987-05-15 1990-03-20 Dyckerhoff & Widmann Aktiengessellschaft Apparatus for locating operational surfaces on a track for electromagnetically levitated vehicles
JPH083936A (en) * 1994-06-08 1996-01-09 Oriental Constr Co Ltd Assembling method for forms for construction of bridge and device therefor
KR0173518B1 (en) * 1995-08-23 1999-02-18 이용재 Moving method and apparatus of launchable scaffold for bridge construction
KR100227164B1 (en) * 1995-05-29 1999-10-15 강희분 The support structure of movable scaffolding system in bridge construction
JP2001172919A (en) * 1999-12-20 2001-06-26 Ps Corp Travel-type support
KR20030027262A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The construction equipment for assembling and establishing automatic formwork and transferring internal and external formwork simultaneously for Movable Scaffolding System in the double-T girder bridge
KR20030027274A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The advanced method for arrangement of prefabricated reinforcement for each span for Movable Scaffolding System in the double-T girder bridge
KR20030027275A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The construction equipment for minimizing the number of operation holes developed during the construction of the Bridge with Movable Scaffolding System

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100511U (en) * 1979-12-27 1981-08-07
JPS5989108U (en) * 1982-12-07 1984-06-16
US4909474A (en) * 1987-05-15 1990-03-20 Dyckerhoff & Widmann Aktiengessellschaft Apparatus for locating operational surfaces on a track for electromagnetically levitated vehicles
JPH083936A (en) * 1994-06-08 1996-01-09 Oriental Constr Co Ltd Assembling method for forms for construction of bridge and device therefor
KR100227164B1 (en) * 1995-05-29 1999-10-15 강희분 The support structure of movable scaffolding system in bridge construction
KR0173518B1 (en) * 1995-08-23 1999-02-18 이용재 Moving method and apparatus of launchable scaffold for bridge construction
JP2001172919A (en) * 1999-12-20 2001-06-26 Ps Corp Travel-type support
KR20030027262A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The construction equipment for assembling and establishing automatic formwork and transferring internal and external formwork simultaneously for Movable Scaffolding System in the double-T girder bridge
KR20030027274A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The advanced method for arrangement of prefabricated reinforcement for each span for Movable Scaffolding System in the double-T girder bridge
KR20030027275A (en) * 2001-09-28 2003-04-07 브이에스엘코리아 주식회사 The construction equipment for minimizing the number of operation holes developed during the construction of the Bridge with Movable Scaffolding System

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100907141B1 (en) * 2008-07-17 2009-07-09 조영철 Mobile crane installation structure and method for replacing an upper structure of a railway bridge using the same
CN101831872A (en) * 2010-05-12 2010-09-15 重庆城建控股(集团)有限责任公司 Front and rear fulcrum combined cradle
CN101831872B (en) * 2010-05-12 2011-07-06 重庆城建控股(集团)有限责任公司 Front and rear fulcrum combined cradle
CN102022001A (en) * 2010-12-28 2011-04-20 北京中铁房山桥梁有限公司 Integrated binding and locating device of single-box double-chamber full span box girder reinforcing steel bar
CN102134832A (en) * 2011-01-18 2011-07-27 中铁大桥局集团第五工程有限公司 Movable support and movable support assisted method for erecting steel box beams through non-variable amplitude frame beam crane
CN102134832B (en) * 2011-01-18 2012-11-21 中铁大桥局集团第五工程有限公司 Movable support and movable support assisted method for erecting steel box beams through non-variable amplitude frame beam crane
CN102134833A (en) * 2011-02-21 2011-07-27 中国一冶集团有限公司 Construction method for hoisting and disassembling bailey truss
CN102134833B (en) * 2011-02-21 2012-09-05 中国一冶集团有限公司 Construction method for hoisting and disassembling bailey truss
CN102182150A (en) * 2011-04-20 2011-09-14 中国十七冶集团有限公司 Installation method of externally hung steel template for anti-collision guardrail construction outside viaduct
CN102797226A (en) * 2012-07-26 2012-11-28 中铁六局集团有限公司 Integral erection construction method of 60m steel box girder
CN102797226B (en) * 2012-07-26 2014-07-23 中铁六局集团有限公司 Integral erection construction method of 60m steel box girder
CN104259447A (en) * 2014-10-11 2015-01-07 江苏圣乐机械有限公司 T beam mould moving device and use method thereof
CN104695335A (en) * 2015-01-15 2015-06-10 中铁四局集团第二工程有限公司 Overall reinforcement binding and hoisting construction method and construction device adopting upstroke movable scaffolding
CN105386411B (en) * 2015-12-14 2017-06-30 中交一公局第三工程有限公司 Suspension cable top of bridge pier multifunction gate rack device
CN105386411A (en) * 2015-12-14 2016-03-09 中交一公局第三工程有限公司 Multifunctional portal device of suspension bridge pillar top
CN105696609A (en) * 2016-03-02 2016-06-22 中建三局基础设施工程有限公司 Steel hanging box lowering system and installation method thereof
CN106677076A (en) * 2017-03-03 2017-05-17 中交公局第工程有限公司 Simple and rapid method and device for mounting box girder at the top of adjacent bent cap by using span pier gantry crane
CN107227687A (en) * 2017-06-09 2017-10-03 中铁建大桥工程局集团第五工程有限公司 Balanced system of force high-altitude crossbar bracket construction method
CN107687132A (en) * 2017-09-29 2018-02-13 中交第二航务工程局有限公司 The method that equidistant double width bridge uses Segmental assembling bridge-erecting machine synchronous construction
CN107687132B (en) * 2017-09-29 2019-03-08 中交第二航务工程局有限公司 The method that equidistant double width bridge uses Segmental assembling bridge-erecting machine synchronous construction
CN107867300A (en) * 2017-10-16 2018-04-03 四川路桥桥梁工程有限责任公司 A kind of rail flat car that beam is transported on steel truss girder main framing
CN109056559A (en) * 2018-09-04 2018-12-21 长江师范学院 A kind of bridge beam body lifting method based on bent cap
CN110042743A (en) * 2019-05-05 2019-07-23 陕西路桥集团有限公司 The hydraulic climbing die block system of twin legged thin wall hollow pier with synchronize climb construction technology
CN110042761A (en) * 2019-05-05 2019-07-23 陕西路桥集团有限公司 A kind of 0# block bracket prestress prepressing engineering method
WO2020233501A1 (en) * 2019-05-23 2020-11-26 中铁二局集团有限公司 Construction method for upright lifting of large-tonnage box girder to bridge, and erection method for large-tonnage box girder
CN110626957A (en) * 2019-09-29 2019-12-31 中铁大桥局集团第六工程有限公司 Method for installing cable crane
CN110626943A (en) * 2019-10-10 2019-12-31 中铁一局集团有限公司 Special chassis of inverted gantry crane for single-line T-beam bridge and mounting method

Similar Documents

Publication Publication Date Title
CN100557168C (en) A kind of method for high altitude installation of large span steel truss
CN103898836B (en) Cable stayed bridge H type Sarasota height top rail steel battered leg prestress stent construction method
KR20030082668A (en) Construction method for SRC structured high rise building
JP3885584B2 (en) Construction method of composite truss bridge
JP4403051B2 (en) Corrugated steel web bridge construction method
KR100944463B1 (en) Composite cage for construction
CN103061506B (en) Construction method of steel structure dome
KR100937745B1 (en) Constructing method using precast concrete column
KR20010078870A (en) Development and construction methods of the prestressed composite truss beams
CN103195256B (en) Hanging column type steel structure jig frame construction method
JP2006090026A (en) Repairing/reinforcing structure of existing steel member arch bridge
JP4329535B2 (en) Mobile work vehicle for overhanging slabs
CN100503977C (en) Tower column of stayed-cable bridge and its construction method
CN202830776U (en) Bridge variable cross-section rectangular high pier cantilever creeping formwork construction device
CN102086000A (en) Onsite splicing and mounting method for extra-large and overweight box crane girders
US8713892B2 (en) Method for assembling shell segments for forming tower sections of a hybrid wind turbine tower
CN103161126A (en) Road bridge variable section hollow high pier slip-form construction method
CN101348212A (en) Giant crane beam mounting method
JP2008088782A (en) Cantilever overhang erection method of corrugated steel plate web bridge
EP1457601A1 (en) Device and method for building by sectors reinforced or prestressed concrete structure
CN106758737B (en) The bridge location construction method of installation of transverse prestress overall with reinforced concrete bridge deck slab plate combination beam
JP3878900B2 (en) Remodeling method to remove pillar of existing building
JP2008274637A (en) Construction method for continuous viaduct
CN105544984A (en) Large-span steel structure jig frame integrity slip construction process
CN101979791A (en) Ring beam and annular corbel column reinforced connection joint and construction method thereof

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application