KR20050052040A - Composite girder for bridge and construction method - Google Patents
Composite girder for bridge and construction method Download PDFInfo
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- KR20050052040A KR20050052040A KR1020030085868A KR20030085868A KR20050052040A KR 20050052040 A KR20050052040 A KR 20050052040A KR 1020030085868 A KR1020030085868 A KR 1020030085868A KR 20030085868 A KR20030085868 A KR 20030085868A KR 20050052040 A KR20050052040 A KR 20050052040A
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- composite girder
- bridge
- steel wire
- composite
- girder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
- E01D2101/285—Composite prestressed concrete-metal
Abstract
본 발명은 교량의 상부구조에 사용되는 교량용 합성거더에 관한 것이다.The present invention relates to a composite girder for bridges used in the superstructure of the bridge.
본 발명의 목적은 합성거더를 등분 제작하여 교량의 시공이 용이하도록 함과 아울러 교량의 안전도가 향상되도록 함에 있다.An object of the present invention is to make the construction of the bridge by dividing the composite girder and to improve the safety of the bridge.
이를 위하여 본 발명은 중간 부분이 협소하고 상측에 개방부가 형성된 보강재의 내부에 복수개의 PC강선을 설치함과 아울러 콘크리트를 그라우팅하여 된 공지의 교량용 합성거더에 있어서, 보강재의 단부에 연장편을 형성하고, 복수개의 PC강선 중 어느 하나의 PC강선을 합성거더의 정착구에 고정 설치하고, 인접된 다른 PC강선은 상기 합성거더를 관통하여 다른 합성거더의 정착구에 고정 설치하여 됨을 특징으로 한다.To this end, the present invention is to install a plurality of PC steel wire in the interior of the reinforcement material is narrow in the middle portion and the opening is formed on the upper side, and in the known composite girder for bridges grouting concrete, an extension piece is formed at the end of the reinforcement material In addition, any one PC steel wire of the plurality of PC steel wire is fixed to the anchorage of the composite girder, and another adjacent PC steel wire is fixed to the anchorage of the other composite girder through the composite girder.
아울러 본 발명은 교각의 상측에 복수개의 합성거더를 설치하되, 상기 합성거더의 양측 단부에 형성된 연장편이 서로 맞닿도록 배열하여 작업시점공간이 형성되도록 하는 공정과, 상기 작업시점공간을 통하여 합성거더에 설치된 복수개의 PC강선 중 어느 하나의 PC강선의 단부를 정착구에 고정 설치하고 인접된 다른 PC강선의 단부는 인접된 다른 합성거더를 관통하여 상기 다른 합성거더의 정착구에 고정설치함으로써 복수개의 PC강선의 단부가 교차 정착되도록 하는 공정과, 작업시점공간에 콘크리트를 그라우팅하여 복수개의 합성거더가 일체로 결합되도록 하는 공정으로 됨을 특징으로 한다.In addition, the present invention is to install a plurality of composite girders on the upper side of the piers, the process of forming the working point space by arranging the extension pieces formed at both ends of the composite girder to contact each other, and through the working point space to the composite girder The end of one of the plurality of PC steel wires installed is fixed to the fixing unit, and the end of the other PC steel wire adjacent to the other composite girder through the fixing of the other composite girder by fixing the installation of the plurality of PC steel wire The process is characterized in that the end is cross-fixed and the process of grouting the concrete in the working time space to combine a plurality of composite girders integrally.
이에 따라 본 발명은 교량용 합성거더를 등분 제작함으로써 중량이 가볍게 되어 교량의 시공이 용이하고 비용이 저렴하며, 복수개의 PC강선을 교차 정착함으로써 교량의 응력에 대한 저항력과 하중에 대한 저항력이 강화되어 교량의 내구성과 안전성이 향상되는 등의 유용한 효과가 있다.Accordingly, the present invention is light weight by making the composite girder for the bridge is made lighter, the construction of the bridge is easy and inexpensive, by the cross-fixing of a plurality of PC steel wires, the resistance to the stress of the bridge and the resistance to the load is strengthened There are useful effects, such as improving the durability and safety of the bridge.
Description
본 발명은 교량용 합성거더 및 이를 이용한 시공방법에 관한 것으로, 특히 교량의 상부구조에 사용되는 교량용 합성거더 및 이를 이용한 시공방법에 관한 것이다.The present invention relates to a composite girder for bridges and a construction method using the same, and more particularly to a composite girder for bridges used in the upper structure of the bridge and a construction method using the same.
주지하는 바와 같이 교량의 상부구조를 지지하며 상기 상부구조에 가해지는 하중을 교각으로 보내기 위한 다양한 형태의 빔이 제안된 바 있으며, 이러한 빔들중 I형 빔은 콘크리트 또는 금속으로 되며, 교각과 교각 또는 교각과 교대의 상측에 상기 빔의 양측 선단을 각각 올려놓은 다음, 상부구조를 시공하기 위한 거푸집을 설치하되, 내부에 상기 빔이 위치하도록 하며, 이어서 콘크리트를 타설 양생하여 교량의 상부구조를 시공하는 것이다.As is well known, various types of beams have been proposed to support the superstructure of bridges and to send the loads to the superstructures, of which I-beams are made of concrete or metal, and pier and pier or After placing both ends of the beam on the upper side of the pier and the shift, respectively, install the formwork for the construction of the superstructure, the beam is located inside, and then to pour concrete to build the superstructure of the bridge will be.
이러한 교량용 빔은 제작비용이 저렴하면서 압축 강도, 전단 강도, 휨 강도, 인장강도, 균열 저항 등과 같은 여러 조건에 강해야 하나, 우리나라의 계절적 특성상 신장과 수축, 결빙과 해빙이 반복되어 각종 강도와 저항이 약화되고 노후화가 촉진되는 등의 문제가 있다.Such a beam for bridges must be low in manufacturing cost and resistant to various conditions such as compressive strength, shear strength, flexural strength, tensile strength, crack resistance, etc.Because of the seasonal characteristics of Korea, elongation and contraction, freezing and thawing are repeated, resulting in various strengths and resistances. There are problems such as weakening and aging.
이러한 문제로 인하여 본 출원인이 압축 강도, 전단 강도, 휨 강도, 인장 강도, 균열 저항 등에 우수하여 교량의 내용연수를 증가시키고, 각종 강도와 저항 약화로 인해 붕괴되는 우려를 제거하는 교량용 합성 빔을 특허등록 제0370939호(명칭; 교량용 합성거더)로 제안한 바 있으며, 이를 첨부한 도면 도 1로 도시하였다.Due to these problems, the present inventors have developed a composite beam for bridges that is excellent in compressive strength, shear strength, flexural strength, tensile strength, crack resistance, etc., increasing the service life of the bridge, and eliminating the fear of collapse due to various strengths and weakening resistances. Patent registration No. 0370939 (name: composite girder for bridges) has been proposed, it is shown in Figure 1 attached.
이에 의하면 합성거더(100)은 "I" 형상으로 된 보강재(101)의 내부에 콘크리트(102)를 그라우팅하되, 콘크리트(102)의 내부에 PC강선(103)이 긴장 설치되도록 하고, 보강재(101)의 외측에 복수개의 스터드(104)가 형성된 것으로, 지승(109)이 설치된 교각(108)과 교각(108) 또는 교각(108)과 교대의 상측에 합성거더(100)의 양측 단부를 각각 올려놓은 다음, 하부콘크리트(105)와 상부콘크리트(106)를 타설양생하여 교량의 상부구조(107)를 시공하는 상부구조를 시공하기 위한 거푸집을 설치하되, 그 내부에 상기 빔이 위치하도록 한 후, 콘크리트를 타설하여 상부구조를 시공하는 것이다.According to this, the composite girder 100 grouts the concrete 102 in the interior of the reinforcement 101 having an “I” shape, but the PC steel wire 103 is tension-installed in the interior of the concrete 102, and the reinforcement 101 is provided. A plurality of studs 104 are formed on the outer side of the), and both ends of the composite girders 100 are placed on the pier 108 and the pier 108 or the pier 108 and the alternating bridge where the support 109 is installed, respectively. After laying, the lower concrete 105 and the upper concrete 106 is poured to install a formwork for the construction of the superstructure for the construction of the upper structure 107 of the bridge, but after the beam is located therein, It is to construct the superstructure by pouring concrete.
이러한 합성거더(100)은 압축 강도, 전단 강도, 휨 강도, 인장 강도, 균열저항 등에 우수하여 합성거더(100)의 길이를 연장시킬 수 있어 교량의 시공시 교각의 시공 개수를 축소할 수 있고, 교량의 내용연수가 증가되는 등의 잇점이 있는 것이다.The composite girder 100 is excellent in compressive strength, shear strength, bending strength, tensile strength, crack resistance, etc. can extend the length of the composite girder 100 can reduce the number of construction of the piers when the bridge construction, This has the advantage of increasing the service life of the bridge.
그러나 상기 합성거더(100)은 그 길이가 긴 것이므로, 운반이나 시공시에 대형 중장비를 이용하여야 한다. 따라서 교량의 시공에 따른 공사의 어려움과 비용이 증가되며, 장소의 제약에 의하여 상기 대형 중장비가 진입하지 못하는 장소에서는 시공하지 못하는 등의 문제가 있다.However, since the composite girder 100 is a long one, a large heavy equipment should be used during transportation or construction. Therefore, the difficulty and cost of construction due to the construction of the bridge is increased, there is a problem such as the construction can not be installed in the place where the large heavy equipment can not enter due to the restrictions of the place.
본 발명은 상기와 같은 종래의 문제점을 감안하여 합성거더를 등분 제작하여 교량의 시공이 용이하도록 함과 아울러 교량의 안전도가 향상되는 교량용 합성거더 및 이를 이용한 시공방법을 제공함에 있다.The present invention is to provide a composite girder for the bridge and the construction method using the same to facilitate the construction of the bridge and to improve the safety of the bridge in accordance with the conventional problems as described above to produce a composite girder.
이러한 목적을 달성하기 위한 본 발명은 중간 부분이 협소하고 상측에 개방부가 형성된 보강재의 내부에 복수개의 PC강선을 설치함과 아울러 콘크리트를 그라우팅하여 된 공지의 교량용 합성거더에 있어서, 보강재의 단부에 연장편을 형성하고, 복수개의 PC강선 중 어느 하나의 PC강선을 합성거더의 정착구에 고정 설치하고, 인접된 다른 PC강선은 상기 합성거더를 관통하여 다른 합성거더의 정착구에 고정 설치하여 됨을 특징으로 한다.In order to achieve the above object, the present invention is to install a plurality of PC steel wire inside the reinforcement material having a narrow middle portion and an open portion at the upper side, and grout the concrete in the known composite girder for bridges. An extension piece is formed, and one PC steel wire of a plurality of PC steel wires is fixedly installed in the fixing device of the compound girder, and another adjacent PC steel wire is fixedly installed in the fixing device of another compound girder through the compound girder. do.
아울러 본 발명은 교각의 상측에 복수개의 합성거더를 설치하되, 상기 합성거더의 양측 단부에 형성된 연장편이 서로 맞닿도록 배열하여 작업시점공간이 형성되도록 하는 공정과, 상기 작업시점공간을 통하여 합성거더에 설치된 복수개의 PC강선 중 어느 하나의 PC강선의 단부를 정착구에 고정 설치하고 인접된 다른 PC강선의 단부는 인접된 다른 합성거더를 관통하여 상기 다른 합성거더의 정착구에 고정설치함으로써 복수개의 PC강선의 단부가 교차 정착되도록 하는 공정과, 작업시점공간에 콘크리트를 그라우팅하여 복수개의 합성거더가 일체로 결합되도록 하는 공정으로 됨을 특징으로 한다.In addition, the present invention is to install a plurality of composite girders on the upper side of the piers, the process of forming the working point space by arranging the extension pieces formed at both ends of the composite girder to contact each other, and through the working point space to the composite girder The end of one of the plurality of PC steel wires installed is fixed to the fixing unit, and the end of the other PC steel wire adjacent to the other composite girder through the fixing of the other composite girder by fixing the installation of the plurality of PC steel wire The process is characterized in that the end is cross-fixed and the process of grouting the concrete in the working time space to combine a plurality of composite girders integrally.
이에 의하여 본 발명은 합성거더의 길이가 축소되어 운반이 용이하고, 교량의 시공이 용이하여 비용이 절감되며, 교량의 안전도가 향상된다.As a result, the present invention reduces the length of the composite girder and is easy to transport, the construction of the bridge is easy to reduce the cost, the safety of the bridge is improved.
상기와 같은 본 발명의 구성 및 작용을 첨부한 도면에 의거 상세히 설명하면 다음과 같다.Referring to the configuration and operation of the present invention as described above in detail as follows.
도 2는 본 발명에 의한 합성거더를 도시한 사시도이다.2 is a perspective view showing a compound girder according to the present invention.
본 발명은 중간 부분이 협소하고 상측에 개방부가 형성된 보강재(11)를 형성하되, 상기 보강재(10)의 양측 단부 상측과 하측에 각각 연장편(12)을 돌출 형성하고, 내부에 콘크리트(13)를 그라우팅하여 된 공지의 교량용 합성거더(10)을 형성한다.The present invention forms a reinforcement (11) having a narrow middle portion and an open portion formed at an upper side thereof, and protruding the extension pieces (12) at both upper and lower ends of the reinforcement (10), respectively, and having a concrete (13) therein. Grouting to form a known composite girder for bridges (10).
이때, 상기 콘크리트(13)를 그라우팅할 때에는 복수개의 PC강선(14)이 삽입관통되는 통공을 형성하고, 콘크리트(13)의 일측 단부에 정착구(15)를 형성하여 PC강선(14)의 일측 단부를 고정 설치하며, 상기 PC강선(14)의 타측 단부는 인접된 다른 합성거더(10)의 정착구(15)에 고정될 수 있도록 일정 길이를 연장 형성한다.At this time, when grouting the concrete 13, a plurality of PC steel wire 14 is formed through the insertion hole, and a fixing unit 15 is formed at one end of the concrete 13, one side end of the PC steel wire 14 It is fixed to the installation, the other end of the PC steel wire 14 is formed to extend a predetermined length to be fixed to the fixing unit 15 of the adjacent other girder 10.
이와 같이 형성된 본 발명은 교각(20)의 상측에 복수개를 배열 설치하여 교량을 시공하는 것으로, 상기 복수개의 합성거더(10)은 그 단부가 교각(20)의 1/4지점에서 서로 연결되도록 하며, 복수개의 PC강선(14) 중 어느 하나의 PC강선(14)을 합성거더(10)의 정착구(15)에 고정 설치하고, 인접된 다른 FC강선(14)은 상기 합성거더(10)을 관통하여 다른 합성거더(10)의 정착구(15)에 고정 설치되도록 하며, 이러한 시공 공정을 첨부한 도면 도 3 내지 도 5를 참조하여 설명하면 다음과 같다.The present invention thus formed is to install a plurality of bridges on the upper side of the bridge 20 to construct a bridge, the plurality of composite girders 10 so that the end is connected to each other at the 1/4 point of the bridge 20 The PC steel wire 14 of any one of the plurality of PC steel wire 14 is fixed to the fixing unit 15 of the composite girder 10, and another adjacent FC steel wire 14 passes through the composite girder 10. To be fixed to the fixing unit 15 of the other composite girder 10, and described with reference to Figure 3 to 5 attached to the construction process as follows.
먼저, 교각(20)의 상측에 복수개의 합성거더(10)을 설치하되, 상기 합성거더(10)의 양측 단부에 형성된 연장편(12)이 서로 맞닿도록 하여 복수개의 합성거더(10) 사이에 작업시점공간(19)이 형성되도록 하고, 상기 작업시점공간(19)을 통하여 합성거더(10)에 설치된 복수개의 PC강선(14) 중 어느 하나의 PC강선(14)의 단부를 정착구(15)에 고정 설치하고 인접된 다른 PC강선(14)의 단부는 인접된 다른 합성거더(10)을 관통하여 상기 다른 합성거더(10)의 정착구(15)에 고정 설치함으로써 복수개의 PC강선(14)의 단부가 교차 정착되도록 한다.First, a plurality of compound girders 10 are installed on the upper side of the piers 20, but the extension pieces 12 formed at both ends of the compound girders 10 are in contact with each other between the plurality of compound girders 10. The working point space 19 is formed, and the end of any one of the PC steel wire 14 of the plurality of PC steel wire 14 installed in the composite girder 10 through the working point space 19, the fixing unit 15 Fixed to the end of the other PC steel wire 14 adjacent to each other through the other composite girder 10 adjacent to the fixing unit 15 of the other composite girder 10 by the fixed installation of the plurality of PC steel wire 14 Allow the ends to cross settle.
이때, 상기 작업시점공간(20)은 교량의 응력이 최소가 되는 지점인 교각(20)과 교각(20) 사이의 1/4 지점에 위치되도록 하며, 이어서 상기 작업시점공간(19)에 콘크리트(13)를 그라우팅하여 복수개의 합성거더(10)이 일체로 결합되도록 한다.In this case, the working point space 20 is positioned at a quarter point between the bridge 20 and the bridge 20 that is the point where the stress of the bridge is minimized, and then the concrete ( Grout 13) to combine the plurality of composite girders (10) integrally.
이러한 후, 합성거더(10)의 상측에 상부콘크리트(18)를 타설 양생하여 교량의 상부구조(17)를 시공하는 것이며, 상기 상부구조(17)는 교각(20)의 상단에 지승(16)이 시공되고 그 상측에 시공되는 것이다.After this, the upper concrete 18 is placed on the upper side of the composite girder 10 to cure the upper structure 17 of the bridge, and the upper structure 17 supports the support 16 at the upper end of the bridge 20. This is constructed and installed on the upper side.
이와 같이 본 발명은 합성거더(10)의 길이를 축소하여 소형화함으로써, 교량의 시공시 합성거더(10)의 운반 및 시공을 위한 중장비가 중, 소형 중장비로도 가능하게 되어 시공이 용이하고 비용이 절간되는 것이다.As described above, the present invention reduces the size of the composite girder 10 to reduce the size of the composite girder 10, so that the heavy equipment for transporting and constructing the composite girder 10 can be used as a medium or small heavy equipment, so the construction is easy and costly. It's an interception.
또한, 복수개의 합성거더(10)을 연결하는 PC강선(14)의 정착부위가 교차됨으로써 교량의 응력이나 하중에 때한 저항력이 강화되어 교량의 내구성과 안전성이 향상된다.In addition, as the fixing portions of the PC steel wires 14 connecting the plurality of composite girders 10 cross each other, resistance to the stress or the load of the bridge is strengthened, thereby improving durability and safety of the bridge.
아울러 교각(20)의 상측에 합성거더(10)을 배열 설치할 때 연장편(12)에 의하여 작업시점공간(19)이 형성되므로, PC강선(14)의 연결 또는 정착 작업이 용이한 것이다.In addition, since the working point space 19 is formed by the extension piece 12 when the composite girders 10 are arranged on the upper side of the piers 20, the connection or fixing of the PC steel wire 14 is easy.
상기한 바와 같이 본 발명은 교량용 합성거더를 등분 제작함으로써 중량이 가볍게 되어 교량의 시공이 용이하고 비용이 저렴하며, 복수개의 PC강선을 교차 정착함으로써 교량의 응력에 대한 저항력과 하중에 대한 저항력이 강화되어 교량의 내구성과 안전성이 향상되는 등의 유용한 효과가 있다.As described above, in the present invention, the weight is lightened by equally manufacturing the composite girder for the bridge, making the construction of the bridge easy and inexpensive, and the resistance to the stress and the load against the stress of the bridge by cross-fixing a plurality of PC steel wires. It is strengthened and has a useful effect such as improving the durability and safety of the bridge.
도 1은 종래 합성거더를 이용한 교량의 시공상태를 개략적으로 도시한 설명도.1 is an explanatory view schematically showing a construction state of a bridge using a conventional composite girder.
도 2는 본 발명에 의한 합성거더를 도시한 사시도.Figure 2 is a perspective view showing a composite girder according to the present invention.
도 3 내지 도 4는 본 발명에 의한 합성거더를 이용한 교량의 시공 공정을 도시한 설명도.3 to 4 are explanatory views showing the construction process of the bridge using the composite girder according to the present invention.
도 5는 도 3의 일 요부를 확대 도시한 구성도.FIG. 5 is an enlarged view illustrating the main part of FIG. 3. FIG.
*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *
10 : 교량용 합성거더 11 : 보강재 12 : 연장편DESCRIPTION OF SYMBOLS 10 Composite girder for bridges 11 Stiffener 12 Extension part
13 : 콘크리트 14 : PC강선 15 : 정착구13: concrete 14: PC steel wire 15: anchorage
16 : 지승 17 : 상부구조 18 : 상부콘크리트16: Jiseung 17: Superstructure 18: Upper concrete
19 : 작업시점공간 20 : 교각19: working time space 20: pier
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20030085868A KR100554408B1 (en) | 2003-11-28 | 2003-11-28 | Composite Girder for Bridge and Construction Method |
| CNB2004800348565A CN100547169C (en) | 2003-11-28 | 2004-11-27 | Bridge is with compound beam and the method for using this compound beam bridging |
| PCT/KR2004/003098 WO2005052260A1 (en) | 2003-11-28 | 2004-11-27 | Composite girder for bridge and method of constructing bridge using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| KR20030085868A KR100554408B1 (en) | 2003-11-28 | 2003-11-28 | Composite Girder for Bridge and Construction Method |
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| KR20050052040A true KR20050052040A (en) | 2005-06-02 |
| KR100554408B1 KR100554408B1 (en) | 2006-02-22 |
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| KR (1) | KR100554408B1 (en) |
| CN (1) | CN100547169C (en) |
| WO (1) | WO2005052260A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100740512B1 (en) * | 2006-03-06 | 2007-07-19 | 신성건설 주식회사 | Composite beam for girder |
| KR100754789B1 (en) * | 2006-06-30 | 2007-09-03 | 박재만 | Prestressed composition girder and method of constructing continuous girder used by the composition unit girder |
| CN105951574A (en) * | 2016-05-06 | 2016-09-21 | 中铁大桥勘测设计院集团有限公司 | Steel beam segment, continuous combined beam bridge and construction method of continuous combined beam bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100948877B1 (en) | 2009-08-31 | 2010-03-24 | 산이건설 주식회사 | Steel beam for construction bridge |
| CN102518034B (en) * | 2011-11-11 | 2013-11-20 | 浙江大学 | Bidirectional pre-bent multi-steel-girder and concrete bridge deck combined small box girder bridge structure |
| KR20130075080A (en) * | 2011-12-27 | 2013-07-05 | 재단법인 포항산업과학연구원 | Variable cross section structural member and steel-concrete composite girder having the same |
| KR101325271B1 (en) | 2012-09-28 | 2013-11-04 | 김동우 | Internal stress attenuation girder using the principle of seesaw |
| KR101337326B1 (en) * | 2012-11-23 | 2013-12-06 | 한국건설기술연구원 | Fire-proofing method for composite slab using the same |
| JP6619215B2 (en) * | 2015-11-20 | 2019-12-11 | 太平洋セメント株式会社 | Bridge web member and manufacturing method thereof |
| CN105625190B (en) * | 2016-01-29 | 2017-05-24 | 郑卫忠 | Bridge combination type construction method |
| CN105908615A (en) * | 2016-04-28 | 2016-08-31 | 四川省交通运输厅公路规划勘察设计研究院 | Pretensioned prestressing steel tank concrete beam |
| CN110396915A (en) * | 2019-07-11 | 2019-11-01 | 重庆大学 | U-shaped Steel Thin-Wall-prestress reinforcement Combined concrete bent cap and thin wall steel tube concrete pier stud joint structure and construction technology |
| CN110396916A (en) * | 2019-07-11 | 2019-11-01 | 重庆大学 | U-shaped Steel Thin-Wall-prestressed concrete combination bent cap and thin wall steel tube concrete pier stud joint structure and construction technology |
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| US3892096A (en) * | 1971-08-02 | 1975-07-01 | Romualdo Macchi | Beam structures |
| DE2717869B2 (en) * | 1977-04-22 | 1979-05-31 | Dyckerhoff & Widmann Ag, 8000 Muenchen | Method for stiffening a thin-walled duct and for threading a tendon into the duct |
| JP3053928B2 (en) * | 1991-02-15 | 2000-06-19 | 東京鐵鋼株式会社 | End connection structure and end connection method between precast concrete members |
| JPH1060823A (en) * | 1996-08-16 | 1998-03-03 | S Ii:Kk | Simple girder and continuous girder, and formation thereof |
| JP3455115B2 (en) * | 1998-10-12 | 2003-10-14 | ドーピー建設工業株式会社 | Hollow section bridge and method of constructing the same |
| KR100380637B1 (en) * | 1999-05-10 | 2003-04-16 | 주식회사 인터컨스텍 | Prestressed concrete girder of adjustable load bearing capacity for bridge and adjustment method for load bearing capacity of bridge |
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2003
- 2003-11-28 KR KR20030085868A patent/KR100554408B1/en active IP Right Review Request
-
2004
- 2004-11-27 WO PCT/KR2004/003098 patent/WO2005052260A1/en active Application Filing
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100740512B1 (en) * | 2006-03-06 | 2007-07-19 | 신성건설 주식회사 | Composite beam for girder |
| KR100754789B1 (en) * | 2006-06-30 | 2007-09-03 | 박재만 | Prestressed composition girder and method of constructing continuous girder used by the composition unit girder |
| CN105951574A (en) * | 2016-05-06 | 2016-09-21 | 中铁大桥勘测设计院集团有限公司 | Steel beam segment, continuous combined beam bridge and construction method of continuous combined beam bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100547169C (en) | 2009-10-07 |
| KR100554408B1 (en) | 2006-02-22 |
| WO2005052260A1 (en) | 2005-06-09 |
| CN1886557A (en) | 2006-12-27 |
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