KR20030072182A - apparatus for reducing noise and vibration in steel box girder bridge - Google Patents

apparatus for reducing noise and vibration in steel box girder bridge Download PDF

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KR20030072182A
KR20030072182A KR1020020041428A KR20020041428A KR20030072182A KR 20030072182 A KR20030072182 A KR 20030072182A KR 1020020041428 A KR1020020041428 A KR 1020020041428A KR 20020041428 A KR20020041428 A KR 20020041428A KR 20030072182 A KR20030072182 A KR 20030072182A
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steel box
noise
vibration
bridge
concrete
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KR1020020041428A
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Korean (ko)
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KR100455248B1 (en
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변윤주
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(주)신성엔지니어링
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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
    • E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076—Cellular, e.g. as wall facing
    • E01F8/0082—Cellular, e.g. as wall facing with damping material

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

Abstract

PURPOSE: A noise and vibration reduction device for a steel box bridge is provided to reduce the noise and vibration caused when a railway vehicle passes through a steel box bridge. CONSTITUTION: The noise and vibration reduction device for a steel box bridge comprises the steps of arranging reinforcing bars(3) on a base plane(1a) in a steel box(1), placing concrete(5) to a thickness of 10¯15 centimeters, installing anchors(2) on both sides(1b), and spreading polyester as sound-absorbing materials(4) to a thickness of 3¯5 centimeters.

Description

강박스 교량에 있어서 소음 및 진동 감소장치{apparatus for reducing noise and vibration in steel box girder bridge}Apparatus for reducing noise and vibration in steel box girder bridge

본 발명은 강박스 교량위에 부설된 궤도 위를 철도차량이 운행할 때 발생되는 소음 및 진동 감소장치에 관한 것으로서, 구체적으로는 강박스 내부의 밑면에 앵커를 다수개 설치하고 그 위에 철근을 배근한 후에 콘크리트를 타설하며, 강박스 양 측벽에는 앵커를 다수개 설치하고 그 위에 흡음재를 포설하여 철도 차량이 강박스 교량 위를 운행할 때 발생되는 소음 및 진동을 감소시키는 매우 효과적인 발명인 것이다.The present invention relates to a noise and vibration reduction device generated when a railroad vehicle runs on a track placed on a steel box bridge. Specifically, a plurality of anchors are installed on a bottom surface of a steel box, and the reinforcing bars are disposed thereon. Later, the concrete is placed, and a plurality of anchors are installed on both side walls of the steel box and sound absorbing material is installed thereon, which is a very effective invention to reduce the noise and vibration generated when the railroad car runs on the steel box bridge.

일반적으로 교량은 철근콘크리트 교량과 강박스 교량을 사용하고 있으나, 철근콘크리트 교량의 경우 철근 콘크리트 자체의 중량에 의해 비교적 철도차량이 철근 콘크리트 교량 위를 운행할 때에는 소음 및 진동이 심각하지는 않으나, 강박스 교량의 경우에는 철도차량이 운행할 때에 강박스 자체가 울림통 역할 하여 소음 및 진동이 공명현상을 일으켜 더 크게 차량의 운행 소음 및 진동이 발생하게 된다. 특히, 강박스 교량은 자체 층고가 낮아 지하철 등이 도심을 통과하게 될 경우에는 도로와의 제한 높이의 제약에 따라 철근콘크리트 교량보다 강박스 교량을 선호하게 되므로 이러한 소음 및 진동에 대한 잡음의 폐해가 대두되게 되는 것이다.In general, the bridge uses reinforced concrete bridges and steel box bridges.However, in the case of reinforced concrete bridges, noise and vibration are not severe when railroad cars run on reinforced concrete bridges due to the weight of reinforced concrete itself. In the case of a bridge, the steel box itself acts as a ring when the railroad vehicle is operating, and noise and vibration cause resonance, resulting in greater driving noise and vibration. In particular, the steel box bridge has a low self-level, so when subways pass through the city, the steel box bridge is preferred to the reinforced concrete bridge due to the restriction of the limited height with the road. It will rise.

따라서, 본 발명의 목적은 상술한 제반 문제점을 해결하기 위하여 제안된 것으로서 강박스 교량위에 부설된 궤도를 통과하는 철도차량에 의해 발생되는 소음 및 진동의 폐해를 줄일 수 있는 감소장치로서 강박스의 철판이 얇으면 진동이 강하게 일어나게 되므로 강박스에 중량을 보강하여 주면 소음의 주파수를 줄여 줄 수 있으므로, 강박스 내의 밑면에 앵커를 다수개 설치하고 그 위에 철근을 배근한 후에 콘크리트를 타설하여 양생을 한 후 양측면에 앵커를 다수개 설치하고 그 위에 흡음재를 도포하는 강박스 교량에 있어서 소음 및 진동감소장치를 제공하는데 그 목적이 있다.Accordingly, an object of the present invention is to solve the above-mentioned problems, the steel plate of the steel box as a reduction device that can reduce the harm of noise and vibration generated by the railway vehicle passing through the track laid on the steel box bridge The thinner the vibration is, the stronger the weight of the steel box can reduce the frequency of noise, so install a plurality of anchors on the bottom of the steel box, reinforce the steel on the top of the concrete after curing After that, to provide a plurality of anchors on both sides and to provide a noise and vibration reduction device in the steel box bridge for applying a sound absorbing material thereon.

도 1은 종래에 사용하고 있는 강박스 교량의 강박스를 나타낸 단면도.1 is a cross-sectional view showing a steel box of a steel box bridge conventionally used.

도 2는 본 발명의 강박스 교량에서 강박스 내의 밑면에 철근을 배근하고 콘크리트와 흡음재를 설치한 단면도.Figure 2 is a cross-sectional view of the reinforcement to the bottom of the steel box in the steel box bridge of the present invention installed concrete and sound absorbing material.

도 3은 본 발명의 강박스의 밑면에 콘크리트를 타설하기 전에 앵커를 설치한 것을 나타내는 단면도.Figure 3 is a cross-sectional view showing that the anchor is installed before placing the concrete on the bottom of the steel box of the present invention.

도 4는 본 발명의 강박스의 밑면에 설치된 앵커에 철근을 배근한 상태를 보여주는 단면도.Figure 4 is a cross-sectional view showing a state in which reinforcement to the anchor installed on the bottom of the steel box of the present invention.

도 5는 본 발명의 강박스내에 앵커와 철근의 배근을 완료한 상태를 나타낸 단면도.5 is a cross-sectional view showing a state of completing the reinforcement of the anchor and the reinforcing bar in the steel box of the present invention.

도 6은 본 발명의 강박스 밑면에 타설된 철근콘크리트의 양생이 끝난 후에 양측면에 앵커를 설치하고 나서 흡음재를 도포한 상태를 나타낸 단면도.Figure 6 is a cross-sectional view showing a state in which the sound absorbing material is applied after installing the anchors on both sides after the curing of the reinforced concrete poured on the bottom of the steel box of the present invention.

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

1: 강박스1a : 밑면1: steel box 1a: bottom

1b : 측면2 : 앵커1b: side 2: anchor

3 : 철근4 : 흡음재3: rebar 4: sound absorbing material

5 : 콘크리트5: concrete

상술한 바와 같이 본 발명의 목적을 달성하기 위하여, 강박스(1)내의 밑면(1a)에 앵커(2)를 다수개설치하고 그 위에 철근(3)을 배근한 후에 철근 콘크리트를10 ~ 15㎝두께로 타설하여 강박스(1) 밑면(1a)에 앵커(2)에 의해서 철근 콘크리트가 일체화되도록 하고, 양측면(1b)에도 앵커(2)를 다수개 설치한 후에 폴리에스터재질의 흡음재(4)를 3 ~ 5㎝두께로 앵커(2)와 일체화되게 도포하여 양측면(1b)에 밀착 접착될 수 있도록 한다. 밑면(1a)에 설치되는 것으로서 철근 콘크리트외에 벽돌등 강박스 밑면(1a)에 중량감을 줄 수 있는 재질이면 설치가 가능하며 측면(1b)에도 벽돌, 콘크리트, 목재 등의 설치가 가능하며, 양측면(1b)에 설치하는 경우에는 양측면(1b)에 반드시 밀착을 시키지 않고 일정간격을 두고 설치할 수도 있다. 또한, 밑면(1a) 또는 양측면(1b)에 철근 콘크리트를 타설하기 위하여 철근(3)을 배근하는 대신에 와이어 매쉬를 설치하여 콘크리트를 타설할 수도 있다.In order to achieve the object of the present invention as described above, after installing a plurality of anchors (2) on the bottom surface (1a) in the steel box (1) and after reinforcing the reinforcement (3) thereon reinforced concrete 10 ~ 15cm Reinforced concrete is integrated in the bottom 1a of the steel box 1 by the thickness of the steel box 1, and the sound absorbing material 4 made of polyester after installing a plurality of anchors 2 on both sides 1b. 3 to 5 cm thickness to be applied integrally with the anchor (2) to be in close contact with both sides (1b). As it is installed on the bottom (1a), it can be installed if it is a material that can give weight to the bottom (1a) of steel boxes such as bricks in addition to reinforced concrete, and brick, concrete, wood, etc. can be installed on the side (1b), and both sides ( In the case of installation in 1b), it may be provided at regular intervals without necessarily making close contact with both sides 1b. In addition, instead of reinforcing the reinforcement 3 in order to place the reinforced concrete on the bottom surface 1a or both sides 1b, a wire mesh may be installed to pour the concrete.

이하, 본 발명에 따른 구성 및 작용을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, the configuration and operation according to the present invention will be described in detail by the accompanying drawings.

도 1은 종래에 사용하고 있는 강박스 교량의 강박스(1)를 나타낸 단면도이다.1 is a cross-sectional view showing a steel box 1 of a steel box bridge conventionally used.

도 2는 본 발명의 강박스 교량에서 강박스(1)내의 밑면(1a)에 철근(3)을 배근하고 콘크리트(5) 10 ~ 15㎝두께로 타설하고 양측면(1b)에 앵커(2)를 설치한 후 흡음재(4)인 폴리에스터를 3 ~ 5㎝ 도포한 상태를 나타낸 단면도이다. 철근(3)을 배근하는 대신에 와이어 매쉬를 깔고 그 위에 콘크리트를 타설할 수도 있으며, 콘크리트이외에 강박스(1)에 중량감을 줄 수 있는 재료로서 벽돌 등이 사용될 수 있다. 이때 양측면(1b)에도 콘크리트 타설시 외이어 매쉬를 앵커(2)위에 설치할 수 있다.Figure 2 reinforces the reinforcing bar (3) to the bottom (1a) in the steel box (1) in the steel box bridge of the present invention and cast concrete (5) to a thickness of 10 ~ 15cm and anchors (2) on both sides (1b) It is sectional drawing which showed the state which applied 3-5 cm of polyester which is the sound absorption material 4 after installation. Instead of reinforcing the reinforcing bar 3, wire mesh may be laid and concrete may be placed thereon, and bricks may be used as a material capable of giving a weight to the steel box 1 in addition to concrete. At this time, both sides (1b) can be installed on the anchor (2) outside the wire mesh when placing concrete.

도 3은 강박스(1)의 밑면(1a)에 콘크리트를 타설하기 전에 앵커(2)를 설치한 것을 나타내는 단면도이다. 이때 설치되는 앵커(2)는 강박스(1)의 밑면(1a)과 철근콘크리트가 일체화되도록 하기 위하여 설치하는 것이다.3 is a cross-sectional view showing that the anchor 2 is installed before placing concrete on the bottom surface 1a of the steel box 1. At this time, the anchor 2 is to be installed so that the bottom surface (1a) of the steel box (1) and the reinforced concrete is integrated.

도 4는 강박스(1)의 밑면(1a)에 설치된 앵커(2)에 철근(3)을 배근한 상태를 보여주는 단면도이다. 철근(3)을 배근하는 대신에 와이어 매쉬를 사용할 수도 있다.4 is a cross-sectional view showing a state in which the reinforcing bar (3) is placed on the anchor (2) installed on the bottom (1a) of the steel box (1). Instead of reinforcing bar 3, a wire mesh may be used.

도 5는 강박스(1)내에 앵커(2)와 철근(3)의 배근을 완료한 단면도이다. 철근콘크리트의 두께는 10 ~ 15㎝두께가 바람직하다.5 is a cross-sectional view of completing the reinforcement of the anchor 2 and the reinforcing bar 3 in the steel box (1). The thickness of the reinforced concrete is preferably 10 to 15 cm.

도 6은 강박스(1) 밑면(1a)에 타설된 철근콘크리트의 양생이 끝난 후에 양측면(1b)에 앵커(2)를 설치하고 나서 흡음재(4)인 폴리에스터를 도포한 상태를 나타낸 단면도이다. 이때 폴리에스터의 도포 두께는 3 ~ 5㎝정도 가 바람직하다. 흡음재(4)로서 고무재질의 것도 가능하며 콘크리트, 목재등도 설치가 가능하다. 양측면(1b)에 설치되는 흡음재(4)는 반드시 양측면(1b)에 밀착시키지 않고 일정한 간격을 두어 설치해도 좋다.6 is a cross-sectional view showing a state in which a polyester, which is a sound absorbing material 4, is applied after anchors 2 are installed on both sides 1b after curing of reinforced concrete poured on the bottom 1a of the steel box 1 is completed. . At this time, the coating thickness of the polyester is preferably about 3 ~ 5cm. The sound absorbing material 4 may be made of rubber, and concrete, wood, etc. may be installed. The sound absorbing material 4 provided on both side surfaces 1b may be provided at regular intervals without necessarily being in close contact with both side surfaces 1b.

이상과 같은 본 발명에 의하면, 강박스 내에 중량물질의 철근콘크리트와 흡음재를 설치하면 콘크리트 중량 증가에 의한 공명음의 1차 제어가 가능하여 진동 감쇠효과가 나타나며, 흡음재로서 반사음의 2차제어가 가능하다. 이러한 장치로 인하여 10 ~ 20데시벨 정도의 감소효과가 나타나며, 소음 및 진동을 줄이기 위하여 종래에 하던 외장품부착과 제진도료 등의 사용에 비해 경제적이다.According to the present invention as described above, if the reinforced concrete and the sound absorbing material of the heavy material is installed in the steel box, the primary control of the resonance sound by the increase of the concrete weight is possible to exhibit the vibration damping effect, and the second control of the reflected sound as the sound absorbing material is possible. Do. Due to such a device, a reduction effect of about 10 to 20 decibels appears, and it is economical compared to the use of an exterior attachment and a damping paint, which are conventionally used to reduce noise and vibration.

Claims (3)

강박스 교량의 소음 및 진동을 감소함에 있어서, 강박스(1) 내부의 밑면(1a)에 다수개 설치된 앵커(2)와 그 위에 설치된 철근(3)과 그 위에 10 ~ 15㎝두께로 타설한 철근콘크리트와, 강박스(1)내의 양측면(1b)에는 다수개 설치된 앵커(2)와 그 위에 흡음재(4)로서 3 ~ 5㎝ 두께로 폴리에스터를 포설한 것을 특징으로 하는 강박스 교량에 있어서 소음 및 진동 감소장치.In reducing the noise and vibration of the steel box bridge, a plurality of anchors (2) installed on the bottom (1a) of the inside of the steel box (1) and the reinforcing bars (3) installed thereon and 10 to 15 cm thick thereon Reinforced concrete and steel box bridge, characterized in that a plurality of anchors (2) installed on both sides (1b) in the steel box (1) and a polyester 3 to 5 cm thick as a sound absorbing material thereon is installed Noise and vibration reduction device. 제 1항에 있어서,The method of claim 1, 상기 철근(3)을 설치하는 대신에 와이어매쉬를 설치하는 것을 특징으로 하는 강박스 교량에 있어서 소음 및 진동 감소장치.Noise and vibration reduction device in the steel box bridge, characterized in that for installing the wire mesh instead of installing the reinforcing bar (3). 제 1항에 있어서,The method of claim 1, 상기 흡음재(4) 포설시 앵커(2)위에 와이어 매쉬를 설치하고, 그 위에 콘크리트를(5)를 타설하는 것을 특징으로 하는 강박스 교량에 있어서 소음 및 진동 감소장치.Noise and vibration reduction device in the steel box bridge, characterized in that the wire mesh is installed on the anchor (2) when installing the sound absorbing material (4), and the concrete is placed thereon.
KR10-2002-0041428A 2002-07-16 2002-07-16 apparatus for reducing noise and vibration in steel box girder bridge KR100455248B1 (en)

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KR2020020006237U Division KR200279862Y1 (en) 2002-03-04 2002-03-04 apparatus for reducing noise and vibration in steel box girder bridge

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532739A (en) * 2014-12-31 2015-04-22 铁道第三勘察设计院集团有限公司 Steel bridge noise reduction device

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KR101066838B1 (en) * 2011-04-11 2011-09-26 고문혜 Double composite box girder and construction method using the same
KR101103300B1 (en) 2011-10-13 2012-01-11 추태헌 Steel box girder with reinforced continuous support and construction method therewith

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104532739A (en) * 2014-12-31 2015-04-22 铁道第三勘察设计院集团有限公司 Steel bridge noise reduction device
CN104532739B (en) * 2014-12-31 2016-05-04 铁道第三勘察设计院集团有限公司 A kind of steel bridge denoising device

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