KR101019412B1 - Psc rahmen bridge where the pc strand tension anchorage was improved - Google Patents

Psc rahmen bridge where the pc strand tension anchorage was improved Download PDF

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KR101019412B1
KR101019412B1 KR1020100128111A KR20100128111A KR101019412B1 KR 101019412 B1 KR101019412 B1 KR 101019412B1 KR 1020100128111 A KR1020100128111 A KR 1020100128111A KR 20100128111 A KR20100128111 A KR 20100128111A KR 101019412 B1 KR101019412 B1 KR 101019412B1
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South Korea
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tension fixing
tension
psc
fixing unit
primary
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KR1020100128111A
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Korean (ko)
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노윤근
박근화
노경범
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노윤근
노경범
박근화
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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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125—Grating or flooring for bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • 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

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

Abstract

PURPOSE: A PSC Rahmen bridge with an improved pc strand tension anchorage is provided to enable the common lifespan of a PSC Ramen bridge to be extended since the concrete cracks of a first tension anchorage and a second tension anchorage due to tensile force are prevented, and thus destruction of the anchorages is prevented. CONSTITUTION: A PSC Rahmen bridge(B) with an improved pc strand tension anchorage comprises abutments(10), slabs(20), a first tension anchor block(30) and a second tension anchor block(40). The abutments are arranged at regular intervals on both sides. The slabs are installed across the abutments. The first tension anchor block is located on cross section of both ends of the abutment, is extended outwardly and is horizontally protruded. The second tension anchor bloke is located on the top of both ends of the abutment and is upwardly protruded. A first tension anchorage(32) and a second tension anchorage(42) are installed on the first and second tension anchor blocks.

Description

ＰＣ강선 긴장 정착부 위치가 개선된 ＰＳＣ라멘교{PSC rahmen bridge where the PC strand tension anchorage was improved}PSC rahmen bridge where the PC strand tension anchorage was improved

본 발명은 PC강선 긴장 정착부 위치가 개선된 PSC라멘교에 관한 것으로, 특히 1차긴장 정착부와 2차긴장 정착부가 위치하는 1차긴장 정착블록과 2차긴장 정착블록을 PSC라멘교 거동상 최대 인장영역을 벗어나는 영역으로 이동 설치한 PC강선 긴장 정착부 위치가 개선된 PSC라멘교에 관한 것이다.The present invention relates to a PSC ramen bridge in which the position of the PC steel wire tension fixing unit is improved, and in particular, the primary tension fixing block and the secondary tension fixing block in which the primary tension fixing unit and the secondary tension fixing unit are located are used. The present invention relates to a PSC ramen bridge with improved position of a PC steel wire tension fixing unit which is moved to an area beyond the maximum tensile area.

종래의 PSC라멘교(B)는 도 1에 도시된 바와 같이, 일정한 간격을 두고 양쪽에 배치되는 교대(10)와 상기 교대(10) 상을 가로질러 설치되는 슬래브(20)로 구성되고, 상기 교대(10)의 양단부 단면에는 1차긴장 정착블록(30)과 상기 교대(10)의 양단부 상면에 위치하는 2차긴장 정착블록(40)이 설치되고, 상기 1차긴장 정착블록(30)과 2차긴장 정착블록(40)에는 1차긴장 정착부(32)와 2차긴장 정착부(42)가 설치되고, 상기 1차긴장 정착부(32)와 2차긴장 정착부(42)에는 1차긴장 PC강선(34)과 2차긴장 PC강선(44)이 설치된 구조이다.Conventional PSC ramen bridge (B), as shown in Figure 1, is composed of a shift 10 arranged on both sides at a constant interval and the slab 20 is installed across the shift 10, the Cross sections 10 of both ends of the primary tension fixing block 30 and the secondary tension fixing block 40 which is located on the upper surface of both ends of the shift 10 is installed, the primary tension fixing block 30 and The secondary tension fixing unit 40 is provided with a primary tension fixing unit 32 and a secondary tension fixing unit 42, and the primary tension fixing unit 32 and the secondary tension fixing unit 42 are 1 The secondary tension PC steel wire 34 and the secondary tension PC steel wire 44 is installed.

여기서, 상기 PSC라멘교(B)의 1차긴장 정착블록(30)과 2차긴장 정착블록(40)의 1차긴장 정착부(32) 및 2차긴장 정착부(42)는 모두 PSC 라멘교(B)의 거동상 교대(10)와 슬래브(20)의 인장력이 최대가 되는 인장영역에 위치되고, PSC라멘교(B) 거동시 1차긴장 정착부(32) 및 2차긴장 정착부(42)의 콘크리트에 균열 등이 발생하여, PSC라멘교(B)의 성능유지상 가장 중요한 1차긴장 정착부(32) 및 2차긴장 정착부(42)의 손상으로 PSC라멘교(B)의 수명이 단축되고, 또한 1차긴장 PC강선(34) 및 2차긴장 PC강선(44)의 긴장력이 저하되어, 공용 중 성능저하 또는 PSC라멘교(B)의 손상 등으로 기능이 중지되는 사고의 우려가 상존하고 있는 실정이다.Here, the primary tension fixing unit 32 and the secondary tension fixing unit 42 of the primary tension fixing block 30 and the secondary tension fixing block 40 of the PSC ramen bridge B are both PSC ramen bridges. The behavioral phase shift of (B) 10 and the slab 20 is located in the tension area where the maximum force is maximized, and the PSC ramen bridge (B) behavior when the primary tension fixing unit 32 and the secondary tension fixing unit ( 42) The cracks, etc. occur in the concrete of the concrete, the damage of the primary tension fixing unit 32 and the secondary tension fixing unit 42, which is the most important for maintaining the performance of the PSC ramen bridge (B), the life of the PSC ramen bridge (B) It is shortened and the tension of the primary Tension PC steel wire 34 and the secondary Tension PC steel wire 44 is reduced, and there is a fear of an accident in which the function is stopped due to deterioration in performance or damage of the PSC ramen bridge (B). Is still present.

즉, 종래의 PSC라멘교(B)는 1차긴장 정착블록(30)과 2차긴장 정착블록(40)이 모두 최대 인장영역에 위치됨으로 인하여 응력이 최대로 집중되어, PSC라멘교(B) 거동시 1차긴장 정착부(32) 및 2차긴장 정착부(42)의 콘크리트에 균열이 발생하는 문제점이 있다. That is, in the conventional PSC ramen bridge B, the stress is concentrated to the maximum because both the primary tension fixing block 30 and the secondary tension fixing block 40 are located in the maximum tension region, so that the PSC ramen bridge B There is a problem that cracks occur in the concrete of the primary tension fixing unit 32 and the secondary tension fixing unit 42 during the behavior.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로, 1차긴장 정착부와 2차긴장 정착부가 위치하는 1차긴장 정착블록과 2차긴장 정착블록을 PSC라멘교 거동상 최대 인장영역을 벗어나는 영역으로 이동 설치하여, 인장력에 의한 1차긴장 정착부와 2차긴장 정착부의 콘크리트 균열을 막아 1차긴장 정착부와 2차긴장 정착부의 파괴를 방지하여 PSC라멘교의 공용수명을 연장할 수 있도록 한 PC강선 긴장 정착부 위치가 개선된 PSC라멘교를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, the first tension fixing block and the second tension fixing block in which the first tension fixing unit and the second tension fixing unit are located in the maximum behavior of PSC ramen bridge Extension of the life span of the PSC ramen bridge by preventing the breakage of the primary and secondary tension anchors by preventing the concrete cracks of the primary and secondary tension anchors from being pulled out of the tension zone. The aim is to provide an improved PSC ramen bridge with improved position of the PC steel wire tension anchor.

상기한 목적을 달성하기 위한 PC강선 긴장 정착부 위치가 개선된 PSC라멘교는 일정한 간격을 두고 양쪽에 배치되는 교대와, 상기 교대 상을 가로질러 설치되는 슬래브로 구성되고, 상기 교대의 양단부 단면에는 1차긴장 정착블록과 상기 교대의 양단부 상면에 위치하는 2차긴장 정착블록이 설치되고, 상기 1차긴장 정착블록과 2차긴장 정착블록에는 1차긴장 정착부와 2차긴장 정착부가 설치되고, 상기 1차긴장 정착부와 2차긴장 정착부에는 1차긴장 PC강선과 2차긴장 PC강선이 설치된 PSC 라멘교에 있어서, 상기 1차긴장 정착블록은 양단부 교대 후면의 외측방향으로 연장되어 수평으로 돌출되도록 위치시키고, 상기 2차긴장 정착블록은 교대 전면부 상단에 상부로 돌출되도록 위치시키거나, 교대 후면부 상단에 상부로 돌출되도록 위치시키는 것을 특징으로 한다.PSC ramen bridge with improved position of the PC steel wire tension fixing unit to achieve the above object is composed of a shift disposed on both sides at regular intervals, and a slab installed across the shift phase, the cross section at both ends of the shift A primary tension fixing block and a secondary tension fixing block positioned on both ends of the shift are installed, and the primary tension fixing block and the secondary tension fixing block are provided with a primary tension fixing unit and a secondary tension fixing unit, In the PSC ramen bridge in which the primary tension PC steel wire and the secondary tension PC steel wire are installed in the primary tension fixing unit and the secondary tension fixing unit, the primary tension fixing block extends in the outward direction of the rear of both ends of the alternating horizontally. Position it so as to protrude, and the secondary tension fixing block is positioned to protrude upwards on the top of the alternating front portion, or to protrude upwards on the top of the alternating rear portion. The.

이상에서 설명한 바와 같이, 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교는 1차긴장 정착부와 2차긴장 정착부가 위치하는 1차긴장 정착블록과 2차긴장 정착블록을 PSC라멘교 거동상 최대 인장영역을 벗어나는 영역으로 이동 설치하여, PC강선의 인장으로 압축력을 가장 크게 받는 1차긴장 정착부와 2차긴장 정착부가 응력이 최대로 집중되는 영역을 벗어나 있기 때문에 인장력에 의한 1차긴장 정착부와 2차긴장 정착부의 콘크리트 균열을 막아 1차긴장 정착부와 2차긴장 정착부의 파괴를 방지하여 PSC라멘교의 공용수명을 연장할 수 있는 장점이 있다.As described above, the PSC ramen bridge with improved position of the PC steel wire tension fixing unit according to the present invention includes the PSC ramen as the primary tension fixing block and the secondary tension fixing block in which the primary tension fixing unit and the secondary tension fixing unit are located. It can be moved to the area beyond the maximum tensile area in the bridge behavior, because the primary tension fixing unit and the secondary tension fixing unit, which receive the greatest compressive force due to the tension of PC steel wire, are out of the area where stress is concentrated to the maximum. By preventing concrete cracks in the secondary tension fixing unit and the secondary tension fixing unit, it is possible to prevent the destruction of the primary tension fixing unit and the secondary tension fixing unit, thereby extending the service life of the PSC ramen bridge.

즉, 1차긴장 정착블록은 교대의 후면 외측으로 연장되어 수평으로 돌출되도록 설치하고, 2차긴장 정착블록은 교대의 전면부 상단에 상부로 돌출되도록 설치하거나, 교대 후면부 상단에 상부로 돌출되도록 설치하면 1차긴장 정착부 및 2차긴장 정착부가 PSC라멘교의 거동상 응력이 최대로 집중되는 영역을 벗어나게 되어 인장력에 의한 콘크리트의 균열을 막을 수 있어 PSC라멘교의 장수명화를 가능하게 효과가 있다. That is, the primary tension fixing block is installed to protrude horizontally outward from the rear side of the shift, and the secondary tension fixing block is installed to protrude upwards on the top of the front part of the shift, or is installed to protrude upward on the top of the shift rear part. If the primary tension fixing unit and the secondary tension fixing unit are out of the region where the stress of the PSC ramen bridge is concentrated to the maximum, it is possible to prevent the cracking of the concrete due to the tensile force, thereby making it possible to prolong the life of the PSC ramen bridge.

도 1은 종래의 PSC 라멘교를 도시한 측면도 및 평면도,
도 2는 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교를 도시한 측면도 및 평면도 1,
도 3은 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교를 도시한 측면도 및 평면도 2.1 is a side view and a plan view of a conventional PSC ramen bridge,
Figure 2 is a side view and a plan view showing a PSC ramen bridge with improved position of the PC steel wire tension fixing unit according to the present invention 1,
3 is a side view and a plan view showing the PSC ramen bridge with improved position of the PC steel wire tension fixing unit according to the present invention.

이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 2는 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교를 도시한 측면도 및 평면도 1이고, 도 3은 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교를 도시한 측면도 및 평면도 2이다.2 is a side view and a plan view 1 showing a PSC ramen bridge with improved position of the PC steel wire tension fixing unit according to the present invention, Figure 3 is a PSC ramen bridge with improved position of the PC steel wire tension fixing unit according to the present invention Side view and top view 2.

이들 도면에 도시된 바와 같이, 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교(B)는 일정한 간격을 두고 양쪽에 배치되는 교대(10)와, 상기 교대(10) 상을 가로질러 설치되는 슬래브(20)로 구성되고, 상기 교대(10)의 양단부 단면에는 1차긴장 정착블록(30)과 상기 교대(10)의 양단부 상면에 위치하는 2차긴장 정착블록(40)이 설치되고, 상기 1차긴장 정착블록(30)과 2차긴장 정착블록(40)에는 1차긴장 정착부(32)와 2차긴장 정착부(42)가 설치되고, 상기 1차긴장 정착부(32)와 2차긴장 정착부(42)에는 1차긴장 PC강선(34)과 2차긴장 PC강선(44)이 설치된 PSC 라멘교에 있어서, 상기 1차긴장 정착블록(30)은 양단부 교대(10) 후면의 외측방향으로 연장되어 수평으로 돌출되도록 위치시키고, 상기 2차긴장 정착블록(40)은 교대(10) 전면부 상단에 상부로 돌출되도록 위치시키거나, 교대(10) 후면부 상단에 상부로 돌출되도록 위치시킨다.As shown in these figures, the PSC ramen bridge (B) with improved position of the PC steel wire tension fixing unit according to the present invention is alternately arranged on both sides at regular intervals, and the alternating (10) on the horizontal Composed of the slab 20 is installed across the cross-section, both ends of the alternating 10 is installed the first tension fixing block 30 and the second tension fixing block 40 which is located on the upper surface of both ends of the shift 10. The primary tension fixing block 30 and the secondary tension fixing block 40 are provided with a primary tension fixing unit 32 and a secondary tension fixing unit 42, and the primary tension fixing unit 32. ) And the secondary tension fixing unit 42 in the PSC ramen bridge in which the primary tension PC steel wire 34 and the secondary tension PC steel wire 44 are installed, the primary tension fixing block 30 alternates at both ends 10. ) To extend in the outward direction of the rear side to protrude horizontally, the secondary tension fixing block 40 is positioned to protrude upwards on the top of the alternating 10 front It is positioned so as to protrude upward from the top of the rear portion of the shift (10).

또한, 상기 2차긴장 정착블록(40)이 교대(10) 전면부 상단에 상부로 돌출되도록 위치시키는 경우에는 슬래브(20) 상면의 2차긴장 정착블록(40)이 끝나는 지점부터 접속도로(50)가 시작되도록 구성된다.In addition, when the secondary tension fixing block 40 is positioned so as to protrude upwards on the top of the alternating front 10, the connection road 50 from the point where the secondary tension fixing block 40 of the upper surface of the slab 20 ends. ) Is configured to begin.

여기서, 도 2에 도시된 바와 같이, 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교(B)는 1차긴장 정착블록(30)이 최대 인장영역을 벗어난 교대(10) 후면에 연장되어 위치하고, 2차긴장 정착블록(40)은 최대 인장영역을 벗어난 교대(10)의 내측지점에 위치하여 응력이 최대로 집중되는 영역을 벗어나도록 구성한다.Here, as shown in Figure 2, the PSC ramen bridge (B) is improved in the position of the PC steel wire tension fixing unit according to the present invention, the first tension fixing block 30 in the rear of the shift (10) outside the maximum tension area Extended and positioned, the secondary tension fixing block 40 is located at the inner point of the shift 10 outside the maximum tension area is configured to leave the area where the stress is concentrated to the maximum.

또한, 도 3에 도시된 바와 같이, 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교(B)는 1차긴장 정착블록(30)이 인장영역을 벗어난 교대(10) 후면에 연장되어 위치하고, 2차긴장 정착블록(40)은 최대 인장영역을 벗어난 교대(10)의 외측지점에 위치하여 응력이 최대로 집중되는 영역을 벗어나도록 구성한다.In addition, as shown in FIG. 3, the PSC ramen bridge B having improved position of the PC steel wire tension fixing unit according to the present invention extends to the rear of the shift 10 in which the primary tension fixing block 30 is out of the tension region. The second tension fixing block 40 is configured to be positioned at an outer point of the shift 10 outside the maximum tension region so as to leave the region where the stress is maximized.

상기한 바와 같은 구성으로 이루어진 본 발명에 따른 PC강선 긴장 정착부 위치가 개선된 PSC라멘교(B)는 1차긴장 정착부(32)와 2차긴장 정착부(42)가 위치하는 1차긴장 정착블록(30)과 2차긴장 정착블록(40)을 PSC라멘교(B)의 거동상 최대 인장영역을 벗어난 영역으로 이동시켜 설치하면, 1차긴장 PC강선(34) 및 2차긴장 PC강선(44)의 인장으로 압축력을 가장 크게 받는 1차긴장 정착부(32)와 2차긴장 정착부(42)가 응력이 최대로 집중되는 영역을 벗어날 수 있으므로 인장력에 의한 1차긴장 정착부(32)와 2차긴장 정착부(42)의 콘크리트 균열을 막아 1차긴장 정착부(32)와 2차긴장 정착부(42)의 파괴를 방지하여 PSC라멘교(B)의 공용수명을 연장할 수 있는 작용효과가 있다.PSC ramen bridge (B) with improved position of the PC steel wire tension fixing unit according to the present invention made as described above is the primary tension fixing unit 32 and the secondary tension fixing unit 42 is located When the fixing block 30 and the secondary tension fixing block 40 are moved to and installed outside the maximum tensile region of the PSC ramen bridge B, the primary tension PC steel wire 34 and the secondary tension PC steel wire are installed. Since the primary tension fixing unit 32 and the secondary tension fixing unit 42, which receive the greatest compressive force by the tension of 44, may escape the region where stress is concentrated to the maximum, the primary tension fixing unit 32 due to the tensile force ) And the secondary tension fixing unit 42 to prevent cracking of the primary tension fixing unit 32 and the secondary tension fixing unit 42, thereby extending the service life of the PSC ramen bridge (B). It has an effect.

특히, 상기 1차긴장 정착블록(30)은 교대(10)의 후면 외측으로 연장하여 수평으로 돌출되도록 설치하고, 2차긴장 정착블록(40)은 교대(10)의 전면부 상단에 상부로 돌출되도록 설치하거나, 교대(10)의 후면부 상단에 상부로 돌출되도록 설치하면, 1차긴장 정착부(32) 및 2차긴장 정착부(42)가 PSC라멘교(B)의 거동상 응력이 최대로 집중되는 영역을 벗어나 인장력에 의한 콘크리트의 균열을 막을 수 있어 PSC라멘교(B)의 장수명화가 가능한 작용효과가 있다.In particular, the primary tension fixing block 30 is installed so as to extend horizontally outward from the rear of the shift 10, the secondary tension fixing block 40 protrudes upwards on the top of the front of the shift 10. If installed so as to protrude upward from the top of the rear portion of the shift 10, the primary tension fixing unit 32 and the secondary tension fixing unit 42 is the maximum stress on the behavior of the PSC ramen bridge (B) It is possible to prevent the cracking of the concrete due to the tensile force out of the concentrated area, which has the effect of extending the life of the PSC ramen bridge (B).

10: 교대 20: 슬래브
30: 1차긴장 정착블록 32: 1차긴장 정착부
34: 1차긴장 PC강선 40: 2차긴장 정착블록
42: 2차긴장 정착부 44: 2차긴장 PC강선
50: 접속도로 B: PSC 라멘교
M: 모멘트도10: shift 20: slab
30: primary tension fixing block 32: primary tension fixing unit
34: 1st tension PC steel wire 40: 2nd tension fixing block
42: secondary tension fixing unit 44: secondary tension PC steel wire
50: Access Road B: PSC Ramen Bridge
M: Moment Diagram

Claims (2)

일정한 간격을 두고 양쪽에 배치되는 교대(10)와, 상기 교대(10) 상을 가로질러 설치되는 슬래브(20)로 구성되고, 상기 교대(10)의 양단부 단면에는 1차긴장 정착블록(30)과 상기 교대(10)의 양단부 상면에 위치하는 2차긴장 정착블록(40)이 설치되고, 상기 1차긴장 정착블록(30)과 2차긴장 정착블록(40)에는 1차긴장 정착부(32)와 2차긴장 정착부(42)가 설치되고, 상기 1차긴장 정착부(32)와 2차긴장 정착부(42)에는 1차긴장 PC강선(34)과 2차긴장 PC강선(44)이 설치된 PSC 라멘교(B)에 있어서,
상기 1차긴장 정착블록(30)은 양단부 교대(10) 후면의 외측방향으로 연장되어 수평으로 돌출되도록 위치시키고,
상기 2차긴장 정착블록(40)은 교대(10) 전면부 상단에 상부로 돌출되도록 위치시키거나, 교대(10) 후면부 상단에 상부로 돌출되도록 위치시키는 것을 특징으로 하는 PC강선 긴장 정착부 위치가 개선된 PSC 라멘교.Alternately disposed on both sides at regular intervals, and the slab 20 is installed across the alternating 10, the first tension fixing block 30 on both end surfaces of the shift (10) And secondary tension fixing blocks 40 disposed on upper surfaces of both ends of the shift 10, and primary tension fixing units 32 in the primary tension fixing blocks 30 and the secondary tension fixing blocks 40. ) And the secondary tension fixing unit 42, the primary tension fixing unit 32 and the secondary tension fixing unit 42, the primary tension PC steel wire 34 and the secondary tension PC steel wire 44 In the installed PSC ramen bridge (B),
The primary tension fixing block 30 is positioned to extend in the outward direction of the rear end of both ends 10 to protrude horizontally,
The secondary tension fixing block 40 is positioned to protrude upward on the top of the shift 10, or the position of the PC steel wire tension fixing unit, characterized in that positioned to protrude upward on the top of the rear of the shift 10 Improved PSC Ramen Bridge. 제 1항에 있어서,
상기 2차긴장 정착블록(40)이 교대(10) 전면부 상단에 상부로 돌출되도록 위치시키는 경우에는 슬래브(20) 상면의 2차긴장 정착블록(40)이 끝나는 지점부터 접속도로(50)가 시작되도록 구성됨을 특징으로 하는 PC강선 긴장 정착부 위치가 개선된 PSC라멘교.The method of claim 1,
When the secondary tension fixing block 40 is positioned so as to protrude upwards on the top of the alternating front 10, the connection road 50 starts from the point where the secondary tension fixing block 40 on the upper surface of the slab 20 ends. PSC ramen bridge with improved position of the PC wire tension anchor, characterized in that it is configured to start.
KR1020100128111A 2010-12-15 2010-12-15 Psc rahmen bridge where the pc strand tension anchorage was improved KR101019412B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101107724B1 (en) * 2010-08-17 2012-01-25 우경기술주식회사 Prestressed concrete rahmen bridge

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Publication number Priority date Publication date Assignee Title
JP2006009489A (en) 2004-06-29 2006-01-12 Sumitomo Mitsui Construction Co Ltd Hanging floor slab bridge
KR20060073209A (en) * 2004-12-24 2006-06-28 재단법인 포항산업과학연구원 Prestressed preflex bridge
KR100968259B1 (en) 2009-09-30 2010-07-06 노윤근 Slab bridge and this construction technique
KR100989811B1 (en) 2010-02-23 2010-10-29 노윤근 Prestressed concrete slab bridge which increased in the efficiency by large decenterizing concrete block and an arch rib

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006009489A (en) 2004-06-29 2006-01-12 Sumitomo Mitsui Construction Co Ltd Hanging floor slab bridge
KR20060073209A (en) * 2004-12-24 2006-06-28 재단법인 포항산업과학연구원 Prestressed preflex bridge
KR100968259B1 (en) 2009-09-30 2010-07-06 노윤근 Slab bridge and this construction technique
KR100989811B1 (en) 2010-02-23 2010-10-29 노윤근 Prestressed concrete slab bridge which increased in the efficiency by large decenterizing concrete block and an arch rib

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101107724B1 (en) * 2010-08-17 2012-01-25 우경기술주식회사 Prestressed concrete rahmen bridge

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