KR101588432B1 - Apparatus for preventing falling of girder which is used for constructing bridge and is able to alarm falling - Google Patents

Apparatus for preventing falling of girder which is used for constructing bridge and is able to alarm falling Download PDF

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Publication number
KR101588432B1
KR101588432B1 KR1020150126865A KR20150126865A KR101588432B1 KR 101588432 B1 KR101588432 B1 KR 101588432B1 KR 1020150126865 A KR1020150126865 A KR 1020150126865A KR 20150126865 A KR20150126865 A KR 20150126865A KR 101588432 B1 KR101588432 B1 KR 101588432B1
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KR
South Korea
Prior art keywords
support
girder
fixed
electrode
pair
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KR1020150126865A
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Korean (ko)
Inventor
이환
박주영
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(주)아심
이환
박주영
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Priority to KR1020150126865A priority Critical patent/KR101588432B1/en
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Publication of KR101588432B1 publication Critical patent/KR101588432B1/en

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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
    • E01D19/00—Structural or constructional details of bridges
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The present invention relates to an apparatus to prevent a fall of a girder used to construct a bridge and is able to sound an alarm when one falls, comprising: an edge mounter adhered to an upper edge portion of the girder; a first hinge joint installed in the edge mounter; and a first support part of which one end is installed to be rotatable in the first hinge joint, and an other end supported on an upper surface of a pier which supports the girder.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for preventing falling of a girder of a bridge having a falling alarm function,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing a bridge construction girder having a conduction alarm function.

Generally, in a concrete multi-cast bridges, an I-type girder such as a plurality of PSC (Prestressed Concrete) beams is installed side by side on a pier or alternation in the longitudinal direction of the bridge, a slab is formed on the upper side of the girder , And is packed with asphalt on the slab.

However, in a concrete multifunctional bridge, there is a risk that the girder provided on the bridge pier may be transmitted by vibration or lateral load until the concrete beam is connected to the girder.

Therefore, measures are needed to dissipate this concern of evangelism. As such means, there is an example in which the girder is supported by each piece. In this case, there is a problem that the stability of the support is problematic because it is deformed due to the nature of each item, and it is also difficult to reuse the items.

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It is an object of the present invention to provide an apparatus for preventing the bridge girder from falling off, which has a conduction alarm function, which can notify the risk of conduction of the girder during the support to the girder.

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According to an aspect of the present invention, there is provided an apparatus for preventing a bridge construction girder having a conduction alarm function, including: an edge mount attached to an upper edge of a girder; A first hinge joint installed on the edge mount; And a first support which is rotatably installed at the first hinge joint at one end and is supported at an upper surface of the bridge pier to support the girder.

Here, the alarm mount may be further provided on the edge mount and configured to generate an alarm in response to the displacement of the first support.

Here, the alarm assembly may include a case; An input unit having a fixed electrode disposed in the case and a movable electrode elastically supported with respect to the first support and being in contact with the fixed electrode according to a displacement of the first support; And an output unit having a power supply unit for supplying power to the moving electrode and a buzzer unit connected to the power supply unit and generating sound when the moving electrode contacts the fixed electrode.

Here, the fixed electrode may include a pair of fixed arms spaced apart from each other, and the movable electrode may include a moving arm disposed between the pair of fixed arms.

Here, the fixed electrode may include a pair of first fixed arms having a first gap; And a pair of second fixed arms having a second gap larger than the first gap, wherein the movable electrode includes: a first movable arm disposed between the pair of first fixed arms; And a second moving arm disposed between the pair of second fixed arms, wherein the buzzer portion includes: a first buzzer electrically connected to the pair of first fixed arms; And a second buzzer electrically connected to the pair of second fixed arms.

Here, the alarm assembly may include a setting screw that passes through the edge mount in a direction from the girder toward the first support and is screwed to the edge mount and is rotated to move the movable electrode forward and backward with respect to the first support .

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According to the apparatus for preventing a bridge construction girder having a conduction alarm function according to the present invention, which has the above-described structure, it is possible to prevent the conduction of the girder efficiently and to re- Can be provided.

Also, the anti-fall device can inform the risk of conduction of the girder during the support to the girder, so that the administrator can cope with the risk of conduction of the girder.

1 is a perspective view for explaining a state in which an apparatus 100 for preventing a bridge construction girder having a conduction alarm function according to an embodiment of the present invention supports the girder I with respect to the bridge pier A. Fig.
Fig. 2 is a side view of the anti-reflection device 100 of Fig. 1 viewed from the side.
FIG. 3 is a conceptual diagram of a state in which the alarm assembly 50 of FIG. 2 is set to zero.
4 is a conceptual view showing the state of the alarm assembly 50 when a small displacement occurs in the first support 31 of Fig.
5 is a conceptual diagram showing the state of the alarm assembly 50 when a large displacement occurs in the first support 31 of FIG.
FIG. 6 is a conceptual view showing a mounter support assembly 60 'in accordance with an alternative embodiment of the mounter support assembly 60 of FIG.
7 is a conceptual view showing a mounter support assembly 60 "in accordance with another variation of the mounter support assembly 60 of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for preventing a bridge girder construction having a conduction alarm function according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the present specification, the same or similar reference numerals are given to different embodiments in the same or similar configurations.

1 is a perspective view for explaining a state in which an apparatus 100 for preventing a bridge construction girder having a conduction alarm function according to an embodiment of the present invention supports the girder I with respect to the bridge pier A. Fig.

Referring to this figure, a girder I is provided on an upper surface S of a bridge pier A erected at the time of constructing a bridge. In order to prevent the conduction of the girder (I), the conduction preventing device (100) is installed on the girder (I).

Fig. 2 is a perspective view of the anti-reflection device 100 of Fig. 1 viewed from the other side.

Referring to the drawings, an anti-tip apparatus 100 includes an edge mounter 10, a first hinge joint 21, a fixed joint 23, a second hinge joint 25, a first support 31, 2 support 35, a friction support plate 37, and a lower support 40.

The edge mounter 10 is a component attached to the upper side of the girder I. The edge mounter 10 includes a first sub-edge mounter 11 and a second sub-edge mounter 13 provided on both sides of the upper edge portion and a first sub-edge mounter 11 and a second sub- (Not shown). These edge mounters 10 may be made of a metal material such as iron.

The first hinge joint 21 is installed on the edge mounter 10 and is installed on the inner edge of the upper flange of the girder I. [ The first hinge joint 21 is a component for rotatably fixing the first support 31 connected to the ground to the edge mounter 10.

The fixed joint (23) is installed adjacent to the first hinge joint (21). For example, at the inner edge of the upper flange of the girder I. The fixed joint 23 is a component for engaging with the second support 35.

One end of the first support 31 is rotatably coupled to the first hinge joint 21 and the other end supports the girder I through a friction support plate 37 provided on the upper surface of the bridge pier . Since the first hinge joint 21 is rotatably engaged with the first support base 31, the support load can be increased or decreased by adjusting the rotation angle according to the design. To this end, the first support 31 has a length adjustable form.

The other end of the second support frame 35 is coupled to the fixed joint 23 at one end and the second support frame 35 is coupled to the fixed joint 23 of the adjacent girder I, . A plurality of girders I are integrally connected through the fixed joint 23 to prevent the girder I from being conducted.

On the other hand, a lower support 40 can be installed on the lower part of the girder I. The lower support 40 may have the same configuration as the second support 35.

Next, the alarm assembly 50 and the mounter support assembly 60 will be described with reference to FIG. 2 and the like.

Fig. 2 is a side view of the anti-reflection device 100 of Fig. 1 viewed from the side.

Referring to this figure, the alarm assembly 50 is configured to generate an alarm in conjunction with the displacement of the first support 31.

Specifically, the alarm assembly 50 can be installed in the edge mount 10. A portion of the alarm assembly 50 is supported on the first support 31.

According to this structure, as the girder I swings to the right or left with respect to its center line by an external force such as a strong wind, the girder I slightly displaces (rotates) to the left or right side in the drawing. This displacement causes a variation in the internal configuration of the alarm assembly 50, and the variation becomes an input for causing an alarm to occur.

The mounter support assembly 60 is a structure for allowing the first sub-edge mounter 11 to be supported by the body IB of the girder I.

This is so that even if the width of the body IB of the girder I changes, the first sub-edge mounter 11 can always be supported on the body IB. To this end, the mounter support assembly 60 is adjustable in length to the first sub-edge mounter 11.

In this embodiment, the mounter support assembly 60 may have a support screw 61. The support screw 61 may be a screw that passes through the first sub-edge mounter 11 in the direction toward the body IB of the girder I from the first support 31. The support screw 61 is also screwed into the first sub-edge mounter 11.

Thereby, for the body IB 'having a smaller second width as compared to the body IB having the first width, the support screw 61' can be tightened more tightly and can be brought into close contact with the body IB ' have.

The specific configuration and operation of the above-described alarm assembly 50 will be described with reference to Figs. 3 to 5. Fig.

3 is a conceptual diagram of a state in which the alarm assembly 50 of FIG. 2 is set to zero.

Referring to this figure, the alarm assembly 50 may include a case 51, an input unit, an output unit, and a setting screw 58.

The case 51 may have an inner hollow shape.

The input unit is configured to receive the displacement of the first support base (31). The input unit may have a fixed electrode 52 and a moving electrode 54 in detail.

The fixed electrode 52 is fixedly installed in the case 51. In addition to the fixed electrode 52, another fixed electrode 52 'may be disposed in the case 51. These fixed electrodes 52 and 52 'may each have a pair of fixed arms 53 and 53'. The first fixed arm 53, which is one of the pair of fixed arms 53 and 53 ', may have an interval (first interval) smaller than the interval (second interval) of the second fixed arms 53' have.

The movable electrode 54 is resiliently supported with respect to the first support 31 and is in contact with the fixed electrode 52 according to the displacement of the first support 31. The moving electrode 54 may be disposed between the fixed electrodes 52 and 52 '. The moving electrode 54 may have a first moving arm 54a disposed between the first fixed arms 53 and a second moving arm 54b disposed between the second fixed arms 53 ' . The moving electrode 54 may also have a limiting bar 54c that hits the inner wall of the case 51 and limits the movement of the moving electrode 54. [ Further, the movable electrode 54 may have an elastic body 54d that allows it to be elastically supported by the first support 31. [

The output unit is configured to interlock with the input unit to generate an alarm upon displacement of the first support base (31). The output unit may have a power supply unit 55, a buzzer unit 56, and a circuit board 57 in detail.

The power supply unit 55 is electrically connected to the moving electrode 54 and the buzzer 56 and 56 '. The power supply unit 55 may include a battery for power supply to the moving electrode 54 and the like.

The buzzer 56 and 56 'may be constituted by a first buzzer 56 and a second buzzer 56' to which the fixed electrode 52 and the fixed electrode 52 'are connected, respectively. Here, the first buzzer 56 and the second buzzer 56 'may be configured to output different levels of sound.

The circuit board 57 has a configuration in which the power supply unit 55 and the buzzer 56 and 56 'are mounted and electrically connected to each other. An elastic body 54d for supporting the moving electrode 54 can also be supported on the circuit board 57. [

The setting screw 58 is a structure for moving the case 51 to the first sub-edge mounter 11 by a necessary distance. The setting screw 58 passes through the first sub-edge mounter 11 in the direction from the girder I toward the first support 31 and is screwed into the first sub-edge mounter 11. The free end of the setting screw 58 can be inserted and fixed in the screw hole of the case 51. [

With this configuration, in the zero point setting state, the two moving arms 54a and 54b of the moving electrode 54 are not in contact with each other with respect to the two fixed electrodes 52 and 52 '.

Thereby, the current of the power supply unit 55 does not constitute a closed circuit including the moving electrode 54 and the fixed electrodes 52 and 52 ', and further, the buzzer 56 and 56'. As a result, the buzzer 56 and 56 'become inoperative.

This zero setting can be done by a setting screw 58. In other words, while turning the setting screw 58, the moving electrode 54 must contact the first support 31 to find a state in which the buzzer 56 and 56 'are not operated. In that state, the zero point setting is done.

Next, Fig. 4 is a conceptual view showing the state of the alarm assembly 50 when a small displacement occurs in the first support 31 of Fig.

Referring to this figure, when the girder I is slightly inclined to the right side of FIG. 2, the first support 31 is also slightly displaced to the right. Thereby, the movable electrode 54 is also moved to the right in accordance with the right displacement of the first support table 31.

As a result, the first movable arm 54a comes into contact with the right arm of the first fixed arm 53. [ This causes the power source unit 55, the moving electrode 54, the first fixed arm 53, and the first buzzer 56 to constitute a closed circuit. Thereby, as the first buzzer 56 is activated, the manager can check the condition of the girder I and take measures such as additionally installing the anti-collision apparatus 100. [

Similarly, when the girder I is slightly inclined to the left in Fig. 2, the first support 31 is also slightly displaced to the left. Thereby, the moving electrode 54 is also moved to the left side according to the left displacement of the first support table 31.

As a result, as the first moving arm 54a comes into contact with the left arm of the first fixed arm 53, the first buzzer 56 can operate.

Next, Fig. 5 is a conceptual diagram showing the state of the alarm assembly 50 when a large displacement occurs in the first support 31 of Fig.

Referring to this figure, when the girder I is inclined to the right side of FIG. 2 much, the first support 31 is also displaced to the right. Thereby, the moving electrode 54 is also greatly moved to the right according to the displacement of the right side of the first support table 31.

As a result, not only the first moving arm 54a contacts the first fixed arm 53 but also the second moving arm 54b is also in contact with the second fixed arm 53 '. In this case, the circuit board 57 causes the second buzzer 56 ', not the first buzzer 56, to operate.

The second buzzer 56 'can output a louder sound than the first buzzer 56 or a sound different from that of the first buzzer 56. Thereby, the manager can grasp the situation in which the girder (I) is to be turned over and arrange for the personnel to immediately leave the site.

Next, the mounter support assembly 60 will be described with reference to Figs. 6 and 7. Fig.

First, FIG. 6 is a conceptual view showing a mounter support assembly 60 'according to a modification of the mounter support assembly 60 of FIG.

Referring to this figure, the mounter support assembly 60 'may have a support screw 61' and a holding block 65 '.

The support screw 61 'is coupled to the first sub-edge mounter 11 in the direction from the first support 31 toward the girder I. And is screwed to the first sub-edge mounter 11. The support screw 61 'is not in direct contact with the girder I but is brought into contact with the girder I through the holding block 65'.

The holding block 65 'is disposed between the girder I and the first sub-edge mounter 11 and accommodates a plurality of support screws 61'. The holding block 65 'may have, in particular, a body 66' and a stretching guide 67 '.

The body 66 'may have an approximately hexahedral shape as an elastic body. The body 66 'may be formed as a single member. In addition, an insertion groove 66a and an operation groove 66b may be formed in the body 66 '. The insertion groove 66a is a groove into which the support screw 61 'is inserted and the operation groove 66b is a groove into which the elasticity guide 67' is inserted. The insertion groove 66a starts at one end of the body 66 'but does not penetrate to the other end.

The elasticity guide 67 'is configured to guide the elongation and contraction of the body 66' along the extension direction of the support screw 61 '. The telescopic guide 67 'can be configured to have an elastic telescopic movement. Specifically, the telescopic guide 67 'includes a first cylinder 67a, a second cylinder 67b inserted in the first cylinder 67a, and a second cylinder 67b in the first cylinder 67a And may have a spring 67c that pushes it out.

According to this configuration, the plurality of support screws 61 'are accommodated in the insertion grooves 66a of the holding block 65', respectively, and these are supported by the body 66 'of the single holding block 65' Thereby maintaining a constant spacing.

Further, the insertion groove 66a does not penetrate the body 66 ', so that the body 66' rather than the support screw 61 'comes into contact with the girder I. Thereby, it is possible to essentially eliminate the possibility that the support screw 61 'causes cracks in the girder I when the support screw 61' is tightened.

Further, the body 66 'is compressed only in the extending direction of the support screw 61' by the elasticity guide 67 ', but is not deformed in the other direction.

Next, Fig. 7 is a conceptual view showing a mounter support assembly 60 "in accordance with another variation of the mounter support assembly 60 of Fig.

Referring to this figure, the mounter support assembly 60 "may have a fixed body 61 ", a moving body 65 ", and an operation knob 69 ".

The fixture 61 "is a cylindrical body fixed to the first sub-edge mount 11. Fixing threads 62" are formed on the outer surface of the fixture 61 ".

The movable body 65 "is a cylindrical body arranged to surround the fixed body 61 ". On the inner surface of the moving body 65 "is formed a moving thread 66" which is screwed with the fixed thread 62 ".

The operation knob 69 "is mounted on the outer surface of the moving body 65 ".

According to this configuration, the operator can rotate the movable body 65 "by operating the operation knob 69 ". The rotation of the moving body 65 "causes the moving body 65" to move the fixed body 61 " In the longitudinal direction. As a result, the moving body 65 "is moved toward the girder I and is supported by the girder I. This causes the first sub-edge mounter 11 to move to the mower support assembly 60" Thereby achieving a result that is supported through the medium.

The above-described apparatus for preventing the bridge girder from falling off, which has the above-mentioned conduction alarm function, is not limited to the construction and operation of the above-described embodiments. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

10: Edge Mounter 50: Alarm Assembly
51: case 52, 52 ': fixed electrode
53, 53 ': fixed arm 54, 54': movable electrode
55: power supply unit 56, 56 ': buzzer
60, 60 ', 60 ": mounter support assembly 100:

Claims (12)

An edge mount attached to an upper edge portion of the girder; A first hinge joint installed on the edge mount; A first support which is rotatably installed at the first hinge joint at one end and is supported at an upper surface of the bridge pier to support the girder; And an alarm assembly mounted on the edge mount and configured to interlock with the displacement of the first support to generate an alarm,
The alarm assembly includes a case; An input unit having a fixed electrode disposed in the case and a movable electrode elastically supported with respect to the first support and contacting with the fixed electrode in accordance with displacement of the first support; And an output unit having a power supply unit for supplying power to the moving electrode and a buzzer unit connected to the power supply unit and generating a sound when the moving electrode contacts the fixed electrode,
Wherein the fixed electrode comprises: a pair of first fixed arms having a first gap; And a pair of second fixed arms having a second gap larger than the first gap, wherein the movable electrode includes: a first movable arm disposed between the pair of first fixed arms; And a second moving arm disposed between the pair of second fixed arms, wherein the buzzer portion includes: a first buzzer electrically connected to the pair of first fixed arms; And a second buzzer that is electrically connected to the pair of second fixed arms. The apparatus for preventing falling of a bridge construction girder having a conduction alarm function. delete delete 2. The apparatus according to claim 1, wherein the fixed electrode includes a pair of fixed arms spaced apart from each other, and the movable electrode includes a movable arm disposed between the pair of fixed arms, Devices for preventing bridge girder construction.
delete The method according to claim 1,
Wherein the alarm assembly is screwed to the edge mount through the edge mount in the direction from the girder toward the first support and connected to the case to rotate the movable electrode relative to the first support, And a setting screw for guiding the bridge of the bridge construction girder. delete delete delete delete delete delete
KR1020150126865A 2015-09-08 2015-09-08 Apparatus for preventing falling of girder which is used for constructing bridge and is able to alarm falling KR101588432B1 (en)

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KR1020150126865A KR101588432B1 (en) 2015-09-08 2015-09-08 Apparatus for preventing falling of girder which is used for constructing bridge and is able to alarm falling

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111549653A (en) * 2020-06-01 2020-08-18 中国地震局工程力学研究所 Multistage antidetonation is prevented roof beam device that falls for precast box girder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060114973A (en) * 2005-05-03 2006-11-08 주식회사 기주건설 Earthquake-proof reinforcement shock relaxation system of bridge structure
KR20080110371A (en) * 2007-06-15 2008-12-18 정인용 Bridge slope sensory device
KR101016768B1 (en) * 2010-12-08 2011-02-25 삼표건설 주식회사 Prevention apparatus for turnover of girder
CN103806370A (en) * 2014-02-12 2014-05-21 郑州市市政工程总公司 Structure for preventing steel box girder from overturning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060114973A (en) * 2005-05-03 2006-11-08 주식회사 기주건설 Earthquake-proof reinforcement shock relaxation system of bridge structure
KR20080110371A (en) * 2007-06-15 2008-12-18 정인용 Bridge slope sensory device
KR101016768B1 (en) * 2010-12-08 2011-02-25 삼표건설 주식회사 Prevention apparatus for turnover of girder
CN103806370A (en) * 2014-02-12 2014-05-21 郑州市市政工程总公司 Structure for preventing steel box girder from overturning

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111549653A (en) * 2020-06-01 2020-08-18 中国地震局工程力学研究所 Multistage antidetonation is prevented roof beam device that falls for precast box girder

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