KR20150110989A - Longitudinal displacement control type multi-span suspension bridge - Google Patents

Longitudinal displacement control type multi-span suspension bridge Download PDF

Info

Publication number
KR20150110989A
KR20150110989A KR1020140034017A KR20140034017A KR20150110989A KR 20150110989 A KR20150110989 A KR 20150110989A KR 1020140034017 A KR1020140034017 A KR 1020140034017A KR 20140034017 A KR20140034017 A KR 20140034017A KR 20150110989 A KR20150110989 A KR 20150110989A
Authority
KR
South Korea
Prior art keywords
girder
tower
main
suspension bridge
bridge
Prior art date
Application number
KR1020140034017A
Other languages
Korean (ko)
Other versions
KR101643312B1 (en
Inventor
최동호
Original Assignee
한양대학교 산학협력단
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 한양대학교 산학협력단 filed Critical 한양대학교 산학협력단
Priority to KR1020140034017A priority Critical patent/KR101643312B1/en
Publication of KR20150110989A publication Critical patent/KR20150110989A/en
Application granted granted Critical
Publication of KR101643312B1 publication Critical patent/KR101643312B1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D11/00—Suspension or cable-stayed bridges
    • E01D11/02—Suspension 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

Abstract

The present invention relates to a multi-span suspension bridge having three or more towers (10) to allow the vertical displacement of a girder (20) and inhibit the longitudinal displacement of the girder (20) with the installation of a roller (40) and an elevating plate (50) on each of the tower (10) and the girder (20). According to the present invention, stress concentration of a tower (10) connection unit of the girder (20) is minimized and the longitudinal displacement of the girder (20) is effectively inhibited. Therefore, unnecessary sliding of main cables (30) at the top of the tower (10) is prevented and tension balance between the main cables (30) in both sides of the tower (10) is stably maintained to secure the structural stability of the bridge.

Description

교축변위 억제형 다경간 현수교{LONGITUDINAL DISPLACEMENT CONTROL TYPE MULTI-SPAN SUSPENSION BRIDGE}{LONGITUDINAL DISPLACEMENT CONTROL TYPE MULTI-SPAN SUSPENSION BRIDGE}

본 발명은 3개 이상의 주탑(10)을 가지는 다경간 현수교에 관한 것으로, 주탑(10)과 거더(20)에 각각 로울러(40) 및 승강판(50)을 설치하여, 거더(20)의 수직변위는 보장하되 교축(橋軸)방향의 변위는 억제할 수 있도록 한 것이다.
The present invention relates to a multi-span suspension bridge having three or more pylons (10), wherein a roller (40) and a lift plate (50) are provided on the pylon (10) The displacement is ensured but the displacement in the direction of the bridge axis can be suppressed.

현수교는 하천 또는 해협의 양 안부에 장주형 구조물인 주탑(10) 및 지반 정착 구조물인 앵커리지(37)를 설치하고, 양단이 양커리지에 결속된 주케이블(30)을 주탑(10) 상단에 거치한 후, 다수의 행어로프(31)로 주케이블(30)과 교량의 거더(20)를 연결하는 교량으로서, 교각의 설치가 곤란하고 경간 거리의 확보가 필요한 지점에 대하여도 경제적이고 안정적인 교량 구축이 가능한 우수한 교량형식이라 할 수 있으며, 관련 종래기술로서 특허 제803077호 등을 들 수 있다.
The main suspension tower is provided with a main tower 10 and an anchorage 37 as fixing structures on both sides of a river or strait and a main cable 30 having both ends connected to both curtains is mounted on the top of the main tower 10. [ A bridge connecting the main cable 30 and the girder 20 of the bridge with a plurality of hanger ropes 31 is used as a bridge that is difficult to install a bridge pier and is required to secure a span distance, Can be said to be an excellent bridging type which can be achieved, and related art is disclosed in Japanese Patent No. 803077 and the like.

현수교의 세부 형식 중 다경간 현수교는 통상의 현수교가 2개의 주탑(10)을 가지는 것과 달리 도 1에서와 같이, 3개 이상의 주탑(10)을 가지는 현수교로서, 현수교의 형식은 유지하면서도 앵커리지(37)의 증설 등 추가 공사의 소요 없이 교량의 연장을 확대할 수 있는 장점이 있으나, 거더(20)의 연장이 확대됨에 따라 도 1의 좌측 타원내 확대부에서와 같이 거더(20)의 교축방향 수평변위가 증가하는 문제점이 있으며, 이는 동 도면의 우측 타원내 확대부에서와 같이 주탑(10) 탑정(塔頂)의 새들(saddle)(35)에 안착된 주케이블(30)의 축방향 활동을 유발하는 문제점이 있었다.A multi-span suspension bridge in the detailed form of a suspension bridge is a suspension bridge having three or more pylons 10, as in Fig. 1, except that a typical suspension bridge has two pylons 10, However, as the extension of the girder 20 is enlarged, the girder 20 can be extended horizontally in the throttling direction of the girder 20 as in the enlarged portion in the left ellipse of FIG. 1, The axial movement of the main cable 30 seated on the saddle 35 of the top of the main tower 10 as shown in the enlarged portion in the right oval of the figure .

이러한 거더(20)의 교축방향 변위 및 그에 따른 주케이블(30)의 축방향 활동은 주탑(10) 양측의 케이블간 장력 불균형을 초래하여, 현수교의 구조적 안정성을 심각하게 위협하는 요소로 작용할 수 있다.The displacement of the girder 20 in the throttling direction and consequently the axial movement of the main cable 30 may lead to a tension imbalance between the cables on both sides of the main tower 10 and may seriously threaten the structural stability of the suspension bridge .

다경간 현수교 거더(20)의 교축방향 변위를 억제하기 위한 수단으로서, 다경간 현수교의 중앙부 주탑(10)에 해당 지점의 거더(20)를 고정하는 방안을 고려할 수 있으나, 이는 고정부에 대한 응력집중을 유발함은 물론, 하중 변화에 따른 주케이블(30) 및 행어로프(31)의 기민한 신축을 방해하므로, 가용한 해결책이 될 수 없다.As a means for suppressing displacement in the throttling direction of the multi-span suspension bridge girder 20, it is possible to consider a method of fixing the girder 20 at the corresponding point on the pivot tower 10 of the span suspension bridge, Not only does it cause concentration, but it also hinders astute expansion and contraction of the main cable 30 and the hanger rope 31 due to a change in load, which is not a usable solution.

이에, 종래의 다경간 현수교에서는 도 2에서와 같이, 주탑(10)과 주탑(10) 통과 지점의 거더(20)를 긴장상태의 강연선(鋼撚線)인 긴장선(29)으로 연결하되, 동 도면 우측 상단의 B-B'선 단면도에서와 같이, 주탑(10) 내벽와 거더(20) 측단을 교축과 평행한 동일선상의 긴장선(29) 한쌍으로 연결하여, 이들 긴장선(29) 한쌍의 수축력이 해당 지점의 거더(20)에 상호 균형을 이루며 작용하도록 함으로써, 거더(20)의 수직방향 변위는 어느 정도 허용하면서 거더(20)의 교축방향 변위는 억제하는 방식이 적용되고 있다.2, the main pylon 10 and the girder 20 passing through the main pylon 10 are connected by a tension line 29, which is a stranded steel wire, The inner wall of the main tower 10 and the side of the girder 20 are connected to each other by a pair of the same tension lines 29 parallel to the throttle axis as shown in the section B-B ' So that the vertical displacement of the girder 20 is allowed to some extent and the displacement of the girder 20 in the throttling direction is suppressed.

그러나 이러한 종래의 다경간 현수교에서는 긴장선(29)이 상시 긴장상태를 유지하는 바, 해당 지점의 거더(20)에 불필요한 응력이 발생될 수 밖에 없으며, 거더(20) 양측에 각각 한쌍 이상 설치되는 긴장선(29) 중 어느 하나라도 손상 내지 파단될 경우 급격한 장력 불균형이 발생되어, 전체 교량의 안정성을 심각하게 위협하는 문제점이 있다.
However, in such a conventional multi-span suspension bridge, since the tension line 29 maintains the tension state at all times, unnecessary stresses are generated in the girder 20 at the point, and more than one pair of the tension lines 29 are installed on both sides of the girder 20 When any one of the tension lines 29 is damaged or broken, a sudden tension imbalance is generated, which seriously threatens the stability of the entire bridge.

본 발명은 전술한 문제점을 감안하여 창안된 것으로, 3개 이상의 주탑(10)과, 주탑(10) 탑정(塔頂)에 거치된 주케이블(30)에 다수의 행어로프(31)로 결속된 거더(20)로 구성되는 다경간 현수교에 있어서, 거더(20) 양측의 주탑(10) 내벽에는 교축(橋軸)과 직교하는 수평 회전축을 가지며 자유롭게 회전하는 한쌍의 로울러(40)가 각각 장착되고, 상기 한쌍의 로울러(40)는 수평으로 상호 이격되며, 거더(20)의 양 측단에는 외측으로 돌출된 수직 판체인 승강판(50)이 각각 접합되되, 승강판(50)의 두께는 상기 한쌍의 로울러(40) 외주면간 이격 거리와 일치하여, 거더(20)의 수직방향 승강 및 변위는 보장하고 교축방향 변위는 억제함을 특징으로 하는 교축변위 억제형 다경간 현수교이다.
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems and has an object of providing a hanger rope having a plurality of hanger ropes (31) bonded to a main cable (30) straddling three or more main towers (10) A pair of rollers 40 having a horizontal rotation axis orthogonal to the bridge axis and rotating freely are mounted on the inner wall of the main tower 10 on both sides of the girder 20 And the pair of rollers 40 are horizontally spaced apart from each other. At both sides of the girder 20, a lift plate 50, which is a vertical plate protruding outward, is joined to the lift plate 50, Of the girder (20) is equal to the distance between the outer circumferential surfaces of the rollers (40) of the girder (20), thereby assuring vertical displacement of the girder (20) and suppressing displacement in the thrash direction.

본 발명을 통하여, 거더(20)의 주탑(10) 연결부의 응력 집중은 최소화하면서도 거더(20)의 교축방향 변위를 효과적으로 억제할 수 있으며, 이로써 주탑(10) 상단 주케이블(30)의 불요(不要) 활동(sliding)을 방지하고, 주탑(10) 양측 주케이블(30)의 장력 균형을 안정적으로 유지하여 해당 교량의 구조적 안정성을 확보할 수 있다.
It is possible to effectively suppress displacement of the girder 20 in the throttling direction while minimizing the concentration of stress at the connecting portion of the main tower 10 of the girder 20, It is possible to prevent the sliding of the main cable 10 and to secure the tension balance of the main cable 30 on both sides of the main tower 10 to secure the structural stability of the bridge.

도 1은 다경간 현수교의 종단면 예시도
도 2는 종래 다경간 현수교의 주탑 및 거더간 연결 구조도
도 3은 본 발명의 종단면도
도 4는 본 발명의 주탑 및 거더간 연결 구조도
도 5는 본 발명의 주탑 및 거더 부분절단 사시도
도 6은 본 발명의 요부발췌 부분절단 분해사시도1 is a longitudinal section view of a multi-span suspension bridge
Fig. 2 is a view showing a connection structure between a main tower and a girder of a conventional multi-
3 is a longitudinal sectional view of the present invention
Fig. 4 is a view showing the connection structure between the main tower and the girder of the present invention
Fig. 5 is a perspective view of a main tower and a girder cut-
6 is a cutaway exploded perspective view of the main part of the present invention

본 발명의 상세한 구성 및 작용을 첨부된 도면을 통하여 설명하면 다음과 같다.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

우선 도 3은 본 발명의 종단면도로서, 동 도면의 타원대 확대부에서와 같이, 본 발명이 적용된 다경간 현수교의 주탑(10)과 거더(20)에는 각각 로울러(40) 및 승강판(50)이 설치된다.3 is a longitudinal sectional view of the present invention. As in the enlarged ellipse of the present invention, the main tower 10 and the girder 20 of the multi-span suspension bridge to which the present invention is applied are respectively provided with a roller 40 and a lift plate 50 ) Is installed.

즉, 도 4 및 도 5에서와 같이, 거더(20) 양측의 주탑(10) 내벽과, 해당 지점의 거더(20)에 각각 한쌍의 로울러(40) 및 승강판(50)이 설치되어, 거더(20)의 측단에 설치된 승강판(50)이 상기 한쌍의 로울러(40) 사이에 결합되는 구조를 가진다.4 and 5, a pair of rollers 40 and a steel plate 50 are provided on the inner wall of the main tower 10 on both sides of the girder 20 and on the girder 20 at the corresponding point, And a lift plate 50 provided at a side end of the pair of rollers 40 is coupled between the pair of rollers 40.

도 6에서와 같이, 주탑(10)의 내벽에 설치되는 로울러(40)는 교축(橋軸)과 직교하는 수평 회전축을 가지며 자유롭게 회전가능하도록 설치되며, 거더(20)의 주탑(10) 통과 지점 양 측단에는 외측으로 돌출된 수직 판체인 승강판(50)이 각각 접합된다.6, the roller 40 installed on the inner wall of the main tower 10 has a horizontal rotation axis orthogonal to the bridge axis and is freely rotatable. And a vertical steel plate 50, which is an outwardly projecting vertical plate, are joined to both ends.

또한, 도 4의 D-D'선 단면도 및 도 6에서와 같이, 상기 한쌍의 로울러(40)는 수평으로 상호 이격되고, 승강판(50)의 평면상 두께는 상기 한쌍의 로울러(40) 외주면간 이격 거리와 일치하여, 한쌍의 로울러(40) 사이에 승강판(50)이 결합되는 구조를 가진다.6, the pair of rollers 40 are horizontally spaced apart from each other, and the thickness of the lift plate 50 on the plane is smaller than the thickness of the pair of rollers 40 on the outer circumferential surface of the pair of rollers 40. [ And has a structure in which the lifting plate 50 is coupled between a pair of rollers 40 in agreement with the spacing distance.

따라서, 도 4의 우측 하단 발췌 확대부에서와 같이, 거더(20)의 승강판(50)이 한쌍의 로울러(40) 사이에 결합된 상태에서 자유롭게 승강할 수 있으며, 이로써 거더(20)의 수직방향 승강 및 변위는 보장하되 교축방향 변위는 억제할 수 있다.
4, the lifting plate 50 of the girder 20 can be freely lifted and lowered in a state of being coupled between the pair of rollers 40, Directional lift and displacement can be ensured while displacement in the throat direction can be suppressed.

10 : 주탑
20 : 거더
29 : 긴장선
30 : 주케이블
31 : 행어로프
35 : 새들
37 : 앵커리지
40 : 로울러
50 : 승강판10: pylon
20: Girder
29: tension line
30: Main cable
31: Hanger rope
35: Saddles
37: Anchorage
40: Rollers
50: Wrought steel plate

Claims (1)

3개 이상의 주탑(10)과, 주탑(10) 탑정(塔頂)에 거치된 주케이블(30)에 다수의 행어로프(31)로 결속된 거더(20)로 구성되는 다경간 현수교에 있어서,
거더(20) 양측의 주탑(10) 내벽에는 교축(橋軸)과 직교하는 수평 회전축을 가지며 자유롭게 회전하는 한쌍의 로울러(40)가 각각 장착되고;
상기 한쌍의 로울러(40)는 수평으로 상호 이격되며;
거더(20)의 양 측단에는 외측으로 돌출된 수직 판체인 승강판(50)이 각각 접합되되, 승강판(50)의 두께는 상기 한쌍의 로울러(40) 외주면간 이격 거리와 일치하여, 거더(20)의 수직방향 승강 및 변위는 보장하고 교축방향 변위는 억제함을 특징으로 하는 교축변위 억제형 다경간 현수교.In a multi-span suspension bridge comprising three or more main towers 10 and a girder 20 bound by a plurality of hanger ropes 31 to a main cable 30 mounted on the top of the main tower 10,
On the inner wall of the main tower 10 on both sides of the girder 20, a pair of rollers 40 having a horizontal rotation axis orthogonal to the bridge axis and freely rotating are mounted respectively;
The pair of rollers 40 are horizontally spaced apart from each other;
The thickness of the lifting plate 50 is equal to the distance between the outer circumferential surfaces of the pair of rollers 40, 20) in the vertical direction is ensured and displacement in the thrash direction is suppressed.
KR1020140034017A 2014-03-24 2014-03-24 Longitudinal displacement control type multi-span suspension bridge KR101643312B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140034017A KR101643312B1 (en) 2014-03-24 2014-03-24 Longitudinal displacement control type multi-span suspension bridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140034017A KR101643312B1 (en) 2014-03-24 2014-03-24 Longitudinal displacement control type multi-span suspension bridge

Publications (2)

Publication Number Publication Date
KR20150110989A true KR20150110989A (en) 2015-10-05
KR101643312B1 KR101643312B1 (en) 2016-07-28

Family

ID=54344302

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140034017A KR101643312B1 (en) 2014-03-24 2014-03-24 Longitudinal displacement control type multi-span suspension bridge

Country Status (1)

Country Link
KR (1) KR101643312B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106120535A (en) * 2016-07-28 2016-11-16 广西大学 Interior from anchor suspension bridge
CN106835981A (en) * 2017-03-27 2017-06-13 中铁二院工程集团有限责任公司 A kind of self-balance type inhaul cable anchorage structure suitable in bridge pier and bridge tower
CN108221639A (en) * 2018-03-08 2018-06-29 中交武汉港湾工程设计研究院有限公司 A kind of three-tower suspension bridge erection of main beam constructing structure
CN109653077A (en) * 2019-02-02 2019-04-19 中交公路长大桥建设国家工程研究中心有限公司 A kind of three main push-towing rope double tower column suspension bridges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718628A (en) * 1993-07-05 1995-01-20 Kawasaki Heavy Ind Ltd Connection bridge for floating landing bridge and connection bridge load reducing device
KR20090058069A (en) * 2007-12-04 2009-06-09 한양대학교 산학협력단 Bridge supported by a plurality of cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0718628A (en) * 1993-07-05 1995-01-20 Kawasaki Heavy Ind Ltd Connection bridge for floating landing bridge and connection bridge load reducing device
KR20090058069A (en) * 2007-12-04 2009-06-09 한양대학교 산학협력단 Bridge supported by a plurality of cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106120535A (en) * 2016-07-28 2016-11-16 广西大学 Interior from anchor suspension bridge
CN106835981A (en) * 2017-03-27 2017-06-13 中铁二院工程集团有限责任公司 A kind of self-balance type inhaul cable anchorage structure suitable in bridge pier and bridge tower
CN108221639A (en) * 2018-03-08 2018-06-29 中交武汉港湾工程设计研究院有限公司 A kind of three-tower suspension bridge erection of main beam constructing structure
CN109653077A (en) * 2019-02-02 2019-04-19 中交公路长大桥建设国家工程研究中心有限公司 A kind of three main push-towing rope double tower column suspension bridges
CN109653077B (en) * 2019-02-02 2024-02-02 中交公路长大桥建设国家工程研究中心有限公司 Three main cable double-tower column suspension bridge

Also Published As

Publication number Publication date
KR101643312B1 (en) 2016-07-28

Similar Documents

Publication Publication Date Title
KR101643312B1 (en) Longitudinal displacement control type multi-span suspension bridge
JP6798082B2 (en) How to replace the main cable of the suspension bridge
US20130160224A1 (en) Partially and fully earth-anchored cable-stayed bridges using main-span prestressing unit and method of constructing the same
KR100926089B1 (en) Bridge supported by a plurality of cable
KR101251298B1 (en) Precast segment fixing the connection member of closed structure and method constructing a stress ribbon bridge therewith
CN105088963B (en) The bridge navigable temporary rope way bridge and its construction method of a kind of anti-high wind wave
KR20130074651A (en) Partially earth-anchored cable-stayed bridge construction method using main span prestressing appratus and anchoring box
CN109295862A (en) A kind of stiffening girder of suspension bridge without horizontal traction force swings shifting installation method
CN109629402B (en) Construction method of three-tower four-span suspension bridge girder
KR100974068B1 (en) The suspension bridge displaced control method for which suspension bridge bar hanger device and this were used
CN102502392A (en) Oilfield skid block hoisting structure
JP2004092269A (en) Prevention structure for bridge fall and uplift in cable-stayed bridge
KR101010910B1 (en) A cable connector
KR101881489B1 (en) Suspension bridge stiffening girder construction apparatus
KR20070083452A (en) Cable stayed suspension bridge making combined use of one-box and two-box girders
CN103993660A (en) Double-jack-stay inwards-concave rope arch structure
JP6021996B1 (en) Pollution prevention membrane
CN109306657A (en) A kind of pipeline suspension crossing wind resistance system
CN106223188A (en) A kind of bridge and shearing resistance combinative structure thereof
KR20020073000A (en) Erection method of starter segment for cable stayed bridge
CN215185643U (en) Cable bridge with fixing band
CN113550224B (en) Double-main-hole single-tower self-anchored suspension bridge structural system and construction process
CN107761572B (en) Stay cable hanging system and installation method thereof
CN113174863B (en) Construction method of cable-stayed suspension cable cooperation system bridge
CN219436552U (en) Reinforced large-span horizontal cable bridge

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant