KR101858001B1 - Measuring apparatus for gap of bridge girder - Google Patents

Measuring apparatus for gap of bridge girder Download PDF

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Publication number
KR101858001B1
KR101858001B1 KR1020170123677A KR20170123677A KR101858001B1 KR 101858001 B1 KR101858001 B1 KR 101858001B1 KR 1020170123677 A KR1020170123677 A KR 1020170123677A KR 20170123677 A KR20170123677 A KR 20170123677A KR 101858001 B1 KR101858001 B1 KR 101858001B1
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KR
South Korea
Prior art keywords
sheet member
longitudinal direction
housing
bar member
bridge
Prior art date
Application number
KR1020170123677A
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Korean (ko)
Inventor
김성호
이동열
Original Assignee
주식회사 디에스이앤씨
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Priority to KR1020170123677A priority Critical patent/KR101858001B1/en
Application granted granted Critical
Publication of KR101858001B1 publication Critical patent/KR101858001B1/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
    • E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid
    • G01B3/06—Rulers with scales or marks for direct reading rigid folding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors

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

Abstract

Disclosed is an apparatus for measuring an interval between girders for safety diagnosis, including: a bar member; a sheet member having one end which is connected to one end of the bar member; a housing configured to guide the bar member arranged to extend in the longitudinal direction to move in the longitudinal direction and include a member guide part for guiding the sheet member, which is arranged to be bent so as to extend in one direction out of a first right angle direction perpendicular to the longitudinal direction, along the longitudinal direction and the first right angle direction while extending in the longitudinal direction; and a driving force transferring unit for transferring a driving force for moving the bar member in the longitudinal direction to the bar member. In addition, the apparatus for measuring an interval between girders for safety diagnosis is provided as a foldable type (foldable type apparatus for measuring an interval between girders for safety diagnosis), in which the housing includes a linear part and a bent part, and a portion where the bent part facing the first right angle direction of the sheet member is rotatable about a second right angle direction with respect to the linear part to allow the curved portion of the sheet member to be unfolded toward the longitudinal direction.

Description

TECHNICAL FIELD [0001] The present invention relates to a measurement apparatus for safety diagnosis,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a boom interval measuring device for safety diagnosis, for example, a Foldable Type folding boom interval measuring device for safety diagnosis.

Generally, the upper structure of a bridge includes a slab and a girder, and the lower structure of the bridge includes an alternation and a bridge supporting the girder. Of these, the upper structure of the bridge is arranged on the lower part of the bridge so as to have a predetermined distance from the neighboring structures in consideration of the fact that the longitudinal length varies with the seasonal temperature change. For example, construction is performed so that a predetermined interval is formed between the upper structure of the bridge and the alternation. Also, in the case of a multi-span bridge, the construction can be made so that the bridge superstructures are arranged adjacent to each other at predetermined intervals along the longitudinal direction. If the distance between the upper structures of the upper structures of the bridge and the upper structure of the bridge is spaced by a predetermined distance, the running feeling of the vehicles traveling on the bridge is lowered and the possibility of accidental occurrence of the accident is not excluded. An expansion joint is installed between the slabs.

In this regard, attention has recently been paid to the technique for measuring the spacing between the upper structures of bridges, and in particular, the spacing between the girders and the girders supported by the bridge supports of the lower structure, The distance between the girder and the girder or the distance between the girder and the turn can be more easily measured in order to determine whether maintenance is necessary or not, Demand for technology that can be used is expected to increase.

Korean Patent Registration No. 10-0636897 discloses a conventional apparatus for measuring the safety of bridge extension and contraction. However, the above-mentioned conventional technique is a technique for measuring the distance between the slab and the slab, and is not an interval measurement technique based on a girder actually supported by a bridge support. In addition, in the above-mentioned prior art, each of the detection sensor and the detection bar must be fixedly installed between the slab and the slab, which is covered with the expansion joint device, and a check signal lamp connected to the detection sensor and the wired line should be disposed on the bridge slab . As described above, the prior art requires a large number of configurations for generating and sensing electric signals, and there are many matters to be considered in its arrangement position and interconnection, so that the structure is complicated, installation is difficult, and simplicity in measurement .

It is an object of the present invention to solve the problems of the prior art described above, and it is an object of the present invention to provide a bridge structure having a simple structure, And an interval between the alternations) can be easily measured.

According to a first aspect of the present invention, there is provided a beam interval measuring apparatus for safety diagnosis, comprising: a bar member; A sheet member whose other end is connected to one end of the bar member; Wherein the bar member is arranged to extend along the longitudinal direction so as to be movable along the longitudinal direction and to be bent and extended in one direction out of a first right angle direction perpendicular to the longitudinal direction, A housing including a member guide portion for guiding the sheet member movably along the longitudinal direction and the first right angle direction; A driving force transmitting unit for transmitting a driving force for moving the bar member along the longitudinal direction to the bar member; And the bar member or the sheet member is supported with respect to the inner surface of the housing such that the bar member is guided to be linearly moved without departing from the longitudinal direction of the housing, Wherein the sheet member has a bending moment acting at least a reference bending moment with respect to a first bending direction bent in one direction out of the first right angle direction in the longitudinal direction, The bending moment of the bending moment acting on the sheet member is equal to or greater than the reference bending moment and the bending moment of the bending moment acting on the sheet member is equal to or larger than the reference bending moment, Wherein a part of the sheet member is in the first perpendicular direction in the longitudinal direction And a curved portion that is bent toward the one direction and guides the curved portion to be bent, wherein the sheet member has a second portion extending in the longitudinal direction of the housing, A curved surface sheet having a width in a direction perpendicular to the first direction and a middle portion in the first direction perpendicular to the first direction, The curvature of a part of the sheet member at the curved portion is more easily induced than in the case of setting a curved sheet shape convex in one direction out of the first right angle direction by the setting of the cross section of the shape, Wherein when a portion of the sheet member is moved along one direction of the longitudinal direction, And an end hole through which the sheet member passes in one direction out of the first right angle direction so that the length direction of the housing is in a lateral direction or a skew direction of the bridge top structure Wherein the first right angle direction corresponds to a horizontal direction orthogonal to the longitudinal direction or the square direction of the bridge top structure and the second right angle direction corresponds to the vertical direction, Wherein a cross section of the sheet member is formed such that when the cantilever portion including the end member protrudes to the maximum from the end hole, Wherein the cantilever portion protruding to the maximum by the torsion acting by the self weight of the sheet member is not twisted, And a bending portion in which a portion of the sheet member facing the first right angle direction is located, wherein the bending portion includes a bending portion and a bending portion, It is possible to rotate about the second orthogonal direction with respect to the linear portion so that the curved portion of the sheet member can be extended so that the portion facing the first right angle direction is directed to the longitudinal direction.
In the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention, the length of the cantilever portion protruding to the maximum can be set to 50 cm or less, which is a measurable length of the interval of the general bridge excluding the long bridge.
In the beam interval measuring apparatus for safety diagnosis according to one embodiment of the present invention, the cross section of the sheet member is formed such that when the cantilever portion including the end member protrudes from the end hole to the maximum, And the reference bending moment is larger than a maximum bending moment that can be acted on by its own weight.
The length of the protruded cantilever portion of the sheet member is adjusted by considering the length of the housing with respect to the first right angle direction, And an insertion length indicator that indicates the length of insertion of the housing between the two bridge superstructures or between the bridge superstructure and the alternation can be formed.

The above-described task solution is merely exemplary and should not be construed as limiting the present disclosure. In addition to the exemplary embodiments described above, there may be additional embodiments in the drawings and the detailed description of the invention.

According to the above-mentioned problem solving means of the present invention, since the one end of the sheet member is moved toward one of the first right angle directions as the bar member moves in one direction in the longitudinal direction, the housing can be moved in the lateral direction (Or alternately with the bridge upper structure) so that the first perpendicular direction in which one end of the sheet member moves is the horizontal direction orthogonal to the longitudinal direction of the bridge upper structure, The distance between the bridge superstructures can be easily measured through the amount of movement of one end of the sheet member. According to this, it is possible to easily, safely and precisely measure the gap between the girder and the girder which is difficult to access, such as the space between the girder and the girder. In addition, since it is possible to perform measurement only by a simple mechanical operation without using an electrical signal or an operation, an interval measuring apparatus which can be easily handled, manufactured and repaired can be realized.

According to the above-mentioned problem solving means of the present invention, it is possible to utilize a device in which the direction orthogonal to the direction to be actually measured is used as a main direction, and when the cantilever- Since the member is provided so as not to bend or twist, precise gap measurement is possible even through a simple structure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic conceptual view illustrating a state in which the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention is viewed from a side, in which some components disposed inside the housing are projected. FIG.
FIG. 2 is a schematic conceptual view illustrating a state in which the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention is viewed from above, in which some components disposed inside the housing are projected.
3 is a schematic conceptual diagram for explaining a method of measuring an interval with respect to a bridge superstructure through movement of a bar member and a sheet member in the beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention.
FIG. 4 is an enlarged view of a sheet member A in FIG. 2 in a three-dimensional view to illustrate a convex curved sheet shape of a sheet member of the apparatus for measuring safety of a safety diagnosis according to an embodiment of the present invention.
FIG. 5 is a schematic diagram for explaining an embodiment of an insertion length display unit and an interval display unit of the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention.
FIG. 6 is a schematic diagram for explaining another embodiment of the insertion length display unit and the interval display unit of the beam interval measuring apparatus for safety diagnosis according to the embodiment of the present invention.
FIG. 7 is a schematic diagram for explaining a longitudinal directional leveling system and a first rectangular-directional leveling system of the beam-detecting gap measuring apparatus for safety diagnosis according to an embodiment of the present invention.
FIG. 8 is a schematic diagram for explaining a bending portion of the beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention in which the bending portion is rotated relative to the linear portion (folding structure).
FIG. 9 is a schematic diagram for explaining a length-expanding structure of the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention.
FIGS. 10 and 11 are views showing a structure of a length-expanding structure of FIG. 9; FIG. 11 is a perspective view of a bar extending from a base member to a base member; FIG. Between the bar member and the connecting bar member, between the base bar member and the connecting bar member, and the like).
FIG. 12 is a schematic diagram for explaining an embodiment in which the housing (linear portion) of the length-expanding structure of FIG. 9 has a circular section in the shape of a beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It should be understood, however, that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, the same reference numbers are used throughout the specification to refer to the same or like parts.

Throughout this specification, when a part is referred to as being "connected" to another part, it is not limited to a case where it is "directly connected" but also includes the case where it is "electrically connected" do.

It will be appreciated that throughout the specification it will be understood that when a member is located on another member "top", "top", "under", "bottom" But also the case where there is another member between the two members as well as the case where they are in contact with each other.

Throughout this specification, when an element is referred to as "including " an element, it is understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise.

The present invention relates to a beam interval measuring apparatus for safety diagnosis (a bridge upper structure gap measuring apparatus for safety diagnosis).

Hereinafter, a beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention (hereinafter referred to as " gap measuring apparatus ") will be described.

The spacing measuring device is a device for measuring the distance between two bridge superstructures (500) or the bridge superstructure (500) and the alternation for safety diagnosis. For example, the spacing measuring device can measure the distance between the girder and the alternating (alternating wall surface), or the gap between the girder and the alternating wall surface. As another example, the present interval measuring apparatus can be utilized to measure the interval between the slab and the slab or the interval between the slab and the alternating wall (alternating wall surface), if necessary. In addition to the bridge superstructure 500, the gap measuring apparatus can be used to measure the spacing between various structures and structures. By way of example, the girder may be a box girder, an I girder, or the like, but is not limited thereto. In addition, the girder may be a concrete girder, a steel girder, or the like when viewed from the material side, but is not limited thereto.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic conceptual view illustrating a state in which the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention is viewed from a side, FIG. 8 is a schematic diagram showing a state in which the beam interval measuring apparatus for safety diagnosis is viewed from above, in which some of the components arranged inside the housing are projected. FIG. FIG. 3 is a schematic diagram for explaining a method of measuring an interval to a bridge superstructure through movement of a bar member and a sheet member in the beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention. 4 is a diagram showing a three-dimensionally enlarged view of a sheet member in a portion A of FIG. 2 to explain a convex curved sheet shape of a sheet member of the beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention.

Referring to Fig. 1, this gap measuring apparatus includes a bar member 1. Fig.

1, the interval measuring apparatus includes a driving force transmitting unit 4. [ The driving force transmitting unit 4 transmits the driving force for moving the bar member 1 along the longitudinal direction to the bar member 1. [ Illustratively, the driving force transmitting unit 4 may include a handle. 2, the handle may be connected to and provided with the bar member 1, and may be provided in the longitudinal direction of the housing 3 (in the direction of 12 o'clock to 6 o'clock in Figs. 1 and 2) The linear movement of the bar member 1 relative to the base member 1 can be achieved. In other words, since the driving force applied to the handle is transmitted to the bar member 1, the movement of the bar member 1 can be achieved. Illustratively, the driving force can be provided to the bar member 1 through the handle by a user (gap gauge for safety diagnosis) using the gap measuring device.

The bar member 1 can transmit the transmitted driving force to the sheet member 2 to be described later. 3, when the bar member 1 is moved in one direction of the longitudinal direction (the direction of 6 o'clock in Fig. 3) by the driving force, one end of the bar member 1 is in contact with the other end of the sheet member 2 The sheet member 2 can also be moved in one of the longitudinal directions while pressing the sheet member 2 in one direction of the longitudinal direction. As will be described later, unlike the sheet member 2 in which the bending direction is switched, the bar member 1 is configured to linearly move along the longitudinal direction to transmit the driving force to the sheet member 2, It is preferable to be made of a rigid material having a predetermined rigidity so as to be clearly transmitted to the sheet member 2. Illustratively, the bar member 1 may be of plastic material, but is not limited thereto. That is, in view of the role of linear driving force transmission, it is preferable that the bar member 1 is provided in a less flexible (less flexible) material and a cross-sectional shape in warpage than the sheet member 2.

Further, referring to Fig. 1, this gap measuring apparatus includes a sheet member 2. Fig. The other end of the sheet member (2) is connected to one end of the bar member (1). 2, the sheet member 2 is selectively bendable in the first bending direction only in the first bending direction bent in one direction among the first perpendicular direction in the longitudinal direction, and only when the bending moment acts at a reference bending moment or more And has a flexural elasticity that is restored to its original elasticity upon releasing a bending moment acting beyond a reference bending moment. Illustratively, the sheet member 2 may be a flexible steel sheet, a flexible plastic sheet, a leaf spring member, or the like having the above-mentioned flexural elasticity.

1 and 2, the gap measuring apparatus includes a housing 3. The housing 3 includes a housing 3, 2, the housing 3 includes a linear portion 31 in which a bar member 1 and a portion facing the longitudinal direction of the sheet member 2 are positioned, and a linear portion 31 extending in the first perpendicular direction of the sheet member 2 And a bent portion 32 on which the portion is located.

The housing 3 includes a bar member 1 arranged to extend along the longitudinal direction, a bar member 1 extending along the longitudinal direction and extending along the longitudinal direction (one direction in the longitudinal direction) And a member guide portion (5) for guiding the sheet member (2) arranged to be bent and extended in one direction in the direction perpendicular to the first direction so as to be movable along the longitudinal direction and the first right angle direction.

2, the bar member 1 may be arranged to extend along the longitudinal direction within the linear portion 31 of the housing 1, the sheet member 2 may be positioned within the linear portion 31, May be disposed so as to have a portion connected to one end of the bar member 1 and extending in the longitudinal direction and a portion located in the bent portion 32 and bent in one direction out of the first perpendicular direction. 3, when the bar member 1 is moved by a along the one direction in the longitudinal direction by the driving force of the driving force transmitting unit 4 in the initial arrangement state, the other end is moved to one end of the bar member 1 The connected sheet member 2 is also moved together with the bar member 1 so that a portion of the portion facing the longitudinal direction of the sheet member 2 by the member guide portion 5 is moved in the first perpendicular direction It can be moved and moved in one direction. 3, when the bar member 1 is moved by a in one direction in the longitudinal direction, the other end side of the sheet member 1 is moved by a in one direction of the longitudinal direction like the bar member 1, The one end side of the member 1 can be moved by a in one direction among the first perpendicular direction unlike the bar member 1. [

2, the member guide portion 5 applies a bending moment not less than a reference bending moment to the sheet member 2 so that a part of the sheet member 2 is bent in one direction out of the longitudinal direction, And a curved portion 51 for guiding the curved portion 51 so as to be guided. The curved portion 51 is formed in such a manner that one end side of the sheet member 2 in the movement direction of the sheet member 2 in the longitudinal direction of the bar member 1 is opposed to the other end side of the sheet member 2 in the first right angle direction The middle portion of the sheet member 2 is guided so as to be gently bent. By this curved portion 51, the direction of the sheet member 2 can be gradually switched from one to the other in the first perpendicular direction in the longitudinal direction. As described above, the sheet member 2 is provided so as not to be bent by a bending moment smaller than the reference bending moment, so that the curved shape (curved shape) of the curved portion 51 allows the sheet member 2 to bend more than the reference bending moment It is preferable that the sheet member 2 is provided in a form capable of bending the sheet member 2 gradually by applying a moment.

By way of example, the curved portion 51 may be provided in the form of a tube having a size and shape that can guide the sheet member 2 to gradually bend and move along the sheet member 2. 1 to 3, the member guide portion 5 may be provided in the form of a tube (tube) for receiving the bar member 1 and the sheet member 2, A tube extending in the longitudinal direction and a tube extending in the first perpendicular direction may be connected to each other. As another example,

Although not shown in detail in the drawing, the curved portion 51 is disposed in a portion between the linear portion 31 and the bent portion 32 in the inside of the housing 3 so that the extending direction of the sheet member 2 extends in the first right- And may include a plurality of rollers for progressively shifting in one direction. That is, the curved portion 51 may be provided in the shape of a curved tube or may be provided in a plurality of roller guides arranged on both sides in the thickness direction of the sheet member 2 to induce curvature, but the present invention is not limited thereto.

The member guide portion 5 may include a gap maintaining member (stabilizer) for guiding the bar member 1 to be linearly moved without departing from the longitudinal direction of the housing 3. [ The gap holding member is formed by a bar member 1 or a bar member 2 with respect to the inner surface of the housing 3 so that the gap between the inner surface of the housing 3 and the bar member 1 or the sheet member 2 can be constantly maintained. A plurality of spacers for supporting the sheet member 2 and spaced along the longitudinal direction of the housing 3. [ Or in other embodiments, the gap holding member may be provided in such a manner as to continuously support the bar member 1 or the sheet member 2 along the longitudinal direction. Further, the gap holding member may be provided in such a manner as to support the bar member 1 and a tube (pipe) member which receives the sheet member 2. [

The width of the sheet member 2 in the second perpendicular direction perpendicular to the longitudinal direction and the first perpendicular direction (see Fig. 1, w) is set to be (See Fig. 2, t) in the first right angle direction. Accordingly, the sheet member 2 can be easily bent in one direction out of the longitudinal direction by the curved portion 51, and can not easily be bent from the longitudinal direction toward the second perpendicular direction .

4, the sheet member 2 may have a curved sheet-like cross section whose intermediate portion is convex in the other right direction (10 o'clock direction in Fig. 4) in the first right angle direction. The sheet member 2 is configured such that the sheet member 2 at the curved portion 51 in the curved sheet shape is convex in the first perpendicular direction, 2 can be easily induced.

When the bar member 1 is moved along one direction in the lengthwise direction, the housing 3 is moved in the direction of the arrow C so that a part of the sheet member 2 protrudes in the form of a cantilever (cantilever) And an end hole 33 through which the sheet member 2 passes in one direction out of the right angle direction.

3, when the bar member 1 is moved along one direction of the longitudinal direction by the driving force of the driving force transmitting unit 4, the other end is brought into contact with the sheet member 1 connected to one end of the bar member 1, The member 2 is moved by the transmitted driving force and the portion of the sheet member 2 which faces the longitudinal direction can be shifted and moved in one direction of the first perpendicular direction. The length of the portion extending in one direction in the first perpendicular direction of the sheet member 2 can be increased and the one end of the sheet member 2 passes through the end hole 33 to the outside of the housing 3 It can be protruded in the form of a cantilever. In other words, as the sheet member 2 moves, the length of the portion extending in one direction in the first perpendicular direction of the sheet member 2 can be increased, and as the length is increased, the portion of the protruding portion in the form of the cantilever The length can be increased. In other words, the length a of the portion projecting in the form of the cantilever corresponding to the amount of advancement (a) in one direction in the longitudinal direction of the bar member 1 can be increased.

3, in the measurement of the gap, the longitudinal direction of the housing 3 may correspond to the lateral direction or the skew direction of the bridge superstructure 500. At this time, the first right angle direction may correspond to the horizontal direction orthogonal to the longitudinal direction or the square direction of the bridge superstructure 500, and the second right angle direction may correspond to the vertical direction.

For example, if there is no skew in bridge superstructure 500, the spacing between bridge superstructures 500 (or the spacing between alternations with bridge superstructure 500) may be determined in the transverse direction of the bridge The length of the housing 3 in the direction of the length of the bridge upper structure 500 (the direction perpendicular to the longitudinal direction of the bridge upper structure 500) (Or alternating with the bridge overhead structure 500) so that the first perpendicular direction in which one end of the sheet member 2 is moved is directed to the bridge superstructure 500 (Horizontal direction) orthogonal to the lateral direction of the vehicle body 100 (see FIG. 3).

On the other hand, when there is a skew in the bridge superstructure 500, the distance between bridge supra structures 500 (or the distance between bridge superstructure 500 and alternation) is determined by the lateral direction of the bridge The direction of the longitudinal direction of the bridge 3 is not limited to the direction perpendicular to the longitudinal direction of the bridge 3 but may be defined as a distance with respect to the longitudinal direction of the bridge formed along a square direction inclined by a skew with respect to the transverse direction of the bridge. Can be disposed between the bridge superstructures 500 (or alternately with the bridge superstructure 500) so as to face in the square direction of the bridge superstructure 500, (Or alternately with the bridge superstructure 500) (see FIG. 3) such that the right angle direction is directed horizontally orthogonal to the square direction of the bridge superstructure 500.

That is, at the time of the interval measurement, the bar member 1 can be moved along the lateral direction or the skew direction of the bridge top structure 500 by the driving force of the driving force transmitting unit 4, Can be driven to move in the horizontal direction orthogonal to the longitudinal direction or the rectangular direction of the bridge superstructure 500 once. 3, the distance between the bridge superstructures 500 formed along the horizontal direction orthogonal to the longitudinal direction or the square direction of the bridge superstructure 500, or alternately with the bridge superstructure 500, It can be the interval that the device measures.

An interval measurement by the interval measuring apparatus will be described as an example for the interval between the bridge superstructures 500 as follows. 3, the housing 3 can be inserted between the two bridge superstructures 500 in the transverse (or square) direction of the bridge superstructure 500, and the housing 3 can be inserted in the first right- When the bar member 1 is moved by a along one direction of the longitudinal direction in a state in which the outer surface facing the other direction is in contact with the wall surface of one of the two bridge superstructures 500 facing each other at an interval, The portion of the sheet member 2 facing the one direction of the first perpendicular direction of the sheet member 2 has a length protruding from the end hole 33 until the one end of the sheet member 2 is in contact with the wall surface of the other of the two bridge top structures 500 a < / RTI > 3, the length c of the portion of the housing 3 facing the one direction of the first perpendicular direction and the length d of the cantilever portion protruding from the end hole 33 of the sheet member 2 ) Can be measured at the interval between the two bridge superstructures (500). The length d of the cantilever portion protruding in the form of the cantilever of the sheet member 2 corresponds to the amount of movement a of the sheet member 2 and an end portion (Da) of the first substrate 21. That is, the distance that the bar member 1 is actually moved along the longitudinal direction is a, but the measured interval corresponds to the interval corrected by considering the length (c + da) of the interval measuring apparatus facing the first right angle direction Need to be displayed. Illustratively, even if the bar member 1 moves by a distance from the initial state, a is not displayed in the interval display unit 38 shown in Figs. 5 and 6, It is preferable that the corrected value (a + c + da = c + d) is displayed considering the inherent length (the sum of the length c of the housing and the thickness da of the end member). Although the spacing between the two bridge superstructures 500 is illustratively described herein, the spacing between the bridge superstructure 500 and the alternating measurement and the display of the measured values may also be the same or similar to those described above Of course it is.

FIG. 5 is a schematic conceptual view for explaining an embodiment of the insertion length display unit and the interval display unit of the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention. FIG. Fig. 8 is a schematic diagram for explaining another embodiment of the insertion length display unit and the interval display unit of the measurement apparatus. Fig.

5 and 6, the length c of the housing 3 with respect to the first perpendicular direction is set to the length d of the cantilever portion protruded in the sheet member 2 on the outer surface of the housing 3, The interval display unit 38 may be formed to display the interval value c +

Further, illustratively, referring to Fig. 5, the interval display unit 38 may display interval values in a scale system. For example, the interval display portion 38 may be provided at a final position of the reference member 41 that is movable on the scale scale in association with the movement of the bar member 1 (the reference member 41 when the movement of the bar member 1 is completed) ) Is indicated by the corrected interval value.

For example, referring to FIGS. 3 and 5 together, the reference member 41 is arranged on the scale of the interval display unit 38 at the initial position (the position of the reference member 41 before the movement of the bar member 1 is performed) (A) of the bar member 1 after the completion of the movement of the bar member 1 by the length value a of the portion protruding in the cantilever shape of the sheet member 2 after completion of the movement of the bar member 1, Location. Therefore, the interval display unit 38 is configured such that the initial position of the reference member 41 is set such that the length c of the portion of the scale 3 facing the one direction of the first right angle direction of the housing 3 and the thickness of the end member 21 (A value corresponding to the length c of the portion of the housing 3 facing the one direction of the first perpendicular direction when the end member 21 is not provided) corresponding to the sum The value indicated on the scale of the interval display portion 38 by the reference member 41 at the final position of the reference member 41 is smaller than the corrected interval value in the direction of one of the first right angles of the housing 3 (D) of the cantilever portion protruding from the end hole 33 of the sheet member 2).

Further, it is preferable that the interval display portion 38 is provided as close as possible to the other end side of the lengthwise direction of the housing 3 (the end side in the reference 12 o'clock direction in Fig. 5). That is, the interval display unit 38 is provided so that the user can easily check the scale even when the safety diagnostic beam interval measuring apparatus is deeply inserted between the two bridge superstructures 500 or alternately with the bridge superstructure 500 . According to this, even when the interval measuring apparatus is inserted deeply into the space between the intervals to be measured, the interval displayed outside the space can be easily read.

Further, the interval display unit 38 can be adjusted to zero so that the error can be eliminated if necessary. Some variation may occur in the initially set c value, (d-a) value or the like depending on the seasonal change, the temperature change, or the like for a long period of use of the interval measuring device. In consideration of the possibility of such an error, the interval display unit 38 may be provided so that the zero point can be adjusted. For example, the interval display unit 38 may be provided so that the scale line and the scale display value are shifted relative to each other in the longitudinal direction. However, the zero point adjustment method of the interval display unit 38 is not limited thereto. Illustratively, the interval display unit 38 may be provided such that the scale system is movable along the longitudinal direction. The interval display portion 38 is provided on the side of the portion of the housing 3 facing the one direction among the first perpendicular direction of the housing 3 when the bent portion 32 is bent and arranged with respect to the linear portion 31 The length of the portion facing the one direction of the first right angle direction of the housing 3 when the end member 21 is not provided (a value corresponding to the sum of the lengths c and the thicknesses of the end members 21 c) can be zero-pointed so that the initial position of the reference member 41 can indicate.

Also, illustratively, referring to FIG. 6, the interval display unit 38 may be provided as a type that displays an interval value in an information window. This information window can also be implemented in a digital manner, but can also be implemented in an analog manner mechanically interlocking with the movement of the bar member 1. It is preferable that the information window is provided close to the other end in the longitudinal direction of the housing 3 (the end side in the reference 12 o'clock direction in Fig. 6). That is, the interval display unit 38 is provided so that the user can easily check the scale even when the safety diagnostic beam interval measuring apparatus is deeply inserted between the two bridge superstructures 500 or alternately with the bridge superstructure 500 . According to this, even when the interval measuring apparatus is inserted deeply into the space between the intervals to be measured, the interval displayed outside the space can be easily read. Further, as described above, the interval display unit 38 can be adjusted to zero so that the error can be eliminated if necessary.

5 and 6, an outer surface of the housing 3 is provided with an insert (not shown) for indicating the length of the housing 3 inserted between the two bridge superstructures 500 or alternately with the bridge superstructure 500 A length display portion 39 may be formed. By measuring the insertion length of the housing 3 through the insertion length display portion 39, it is possible to separately measure and record the intervals of each position in the transverse direction or the square direction of the bridge. For example, if the girder is inserted 1 m apart from the girder, the gap between the girders, the gap between girders when inserted 2 m, and the gap between girders when girders are inserted 3 m, Reliable and sophisticated. That is, according to the present invention, it is possible to measure only the inter-girder spacing that can be grasped from the outside of the girder (outside in the lateral direction), and furthermore, to measure the inter-girder spacing The interval can be accurately measured. Illustratively, according to the present invention, even for a bridge superstructure having a transverse width, such as a 3-BEAM girder, or a bridge superstructure in which a plurality of girders are arranged at intervals along the transverse direction, The distance between the girders can be measured separately. In consideration of the bridge superstructure having such a wide width, the interval measuring apparatus may be provided in an extended form, which will be described later.

The inserting length display unit 39 is provided to allow the user to easily check the scale even when the safety diagnostic beam interval measuring apparatus is deeply inserted between the two bridge superstructures 500 or alternately with the bridge superstructure 500 . For example, referring to FIGS. 5 and 6, the insertion length indicator may include a scale, in which the final value corresponding to the inserted length corresponds to the other end of the scale, ), That is, the numbers on the scale scale increase toward the other end of the scale system, so that the user can easily confirm the insertion length even outside the bridge superstructure.

1 and 2, the sheet member 2 may include an end member 21 at one end of which a normal line of the surface is formed with an end face oriented in one direction of the first perpendicular direction. As described above, one end of the sheet member 2 may be in contact with the wall surface of one of the two bridge superstructures 500, for the spacing measurement between the two bridge superstructures 500. The contact area between one end of the sheet member 2 and the wall surface is increased by the end member 21 and one end of the sheet member 2 can be stably supported on the wall surface.

The cross section of the sheet member 2 is a part of the sheet member 2 which protrudes to the maximum by the torsion acting by the self weight of the sheet member 2 when the cantilever portion including the end member 21 protrudes from the end hole 33 at the maximum So that the cantilever portion is not twist-deformed. Referring to FIG. 3, when the gap measuring device is inserted into the space to be measured, the sheet member 2 is disposed in a state in which the width w of the sheet member 2 is wider than the thickness t in the vertical direction . Even if the sheet member 2 protrudes in the form of a cantilever (cantilever) for measuring the interval, the moment of inertia of the cross section against the moment to be warped by its own weight becomes very large according to the erected cross-sectional shape, The possibility of bending of the cantilever portion due to warping in use of the apparatus is relatively small. However, it is necessary to consider the possibility that the torsional deformation is generated by a torsion or the like, which is acted on by the end member 21 or the like protruding in the longitudinal direction, have. That is to say, the cantilever portion including the end member 2 is deformed by the self weight of the cantilever portion with respect to the amount of protrusion (the length of the cantilever portion protruding to the maximum) at which the sheet member 2 can protrude to the maximum from the end hole 33 It is preferable that the cross section of the sheet member 2 is set. In order to have a high resistance to such a torsion, the sheet member 2 may be provided in a convex curved sheet shape as described above. Accordingly, even if the cantilever is protruded, the cantilever can protrude more than a predetermined amount without any warping or twisting. Thus, even if only the simple structure is used, the distance between the two bridge superstructures 500 or the gap Can be accurately measured. The sheet member 2 also has a thickness in the form of a convex curved sheet such that the end member 21 has a cross sectional dimension that can withstand the predetermined impact applied when it is contacted with the opposite wall surface of the bridge top structure 500, Width, material, and the like are preferably set. Here, the predetermined impact is a phenomenon in which the user of the gap measuring device operates the driving force transmitting unit 4 to advance the bar member 1 in one direction in the longitudinal direction, When the forward movement is interrupted due to the feeling of resistance that the bar member 1 is difficult to further advance by being in contact with the opposing wall surface of the bar member 500, it may mean an amount of impact corresponding to the resistance.

The cross section of the sheet member 2 is set such that the cantilever portion including the end member 21 protrudes to the maximum from the end hole 33, The reference bending moment is larger than the bending moment.

In addition, the length of the cantilever portion protruding to the maximum can be set to 50 cm or less, which is a measurable length of the interval of the general bridge excluding the long bridge. Preferably, the length of the cantilever portion protruding to the maximum can be set to 30 cm or more and 50 cm or less. (The distance between the two bridge superstructures 500 or the distance between one bridge superstructure 500 and the second bridge superstructure 500) where the sum of the length of the housing 3 with respect to the first right angle direction and the length of the cantilever portion protruding to the maximum is measured, The sum of the length of the housing 3 with respect to the first right angle direction and the length of the cantilever portion protruding at the maximum is set to 50 cm or less (preferably 30 cm to 50 cm) . Illustratively, the length of the housing 3 with respect to the first right angle direction is set to 5 cm to 20 cm as the minimum value of the interval in the general bridge, and the length of the housing 3 with respect to the first right angle direction and the maximum The sum of the lengths of the cantilever portions that can protrude from the cantilever can be set to 30 cm to 50 cm. As described above, when the general spacing measuring apparatus except for the long bridge is applied, the sheet member 2 may protrude only within a length of about 50 cm from the end hole 33. Therefore, the convex curved sheet cross- And this sheet cross section is used in the form of standing in the vertical direction and has a high bending resistance against bending moment due to its own weight, it is possible to measure easily and precisely through a simple protruding structure in the form of a cantilever Do.

FIG. 7 is a schematic diagram for explaining a longitudinal directional leveling system and a first rectangular-directional leveling system of the beam-detecting gap measuring apparatus for safety diagnosis according to an embodiment of the present invention.

Referring to Fig. 7, the housing 3 is provided with a longitudinal directional scale 3a, which is provided to indicate that the portion extending along the longitudinal direction thereof is horizontal when it is oriented in the horizontal direction, And a first orthogonal directional leveling unit 3b provided to indicate that the portion is horizontal when it is oriented in the horizontal direction.

The longitudinal directional leveling device 3a and the first right angle directional leveling device 3b are provided so that the user can easily recognize that the user is in a state in which the safety gap measuring device for safety diagnosis is deeply inserted between the two bridge superstructures 500 or alternately with the bridge superstructure 500 It is preferable that the scale is easily provided. Illustratively, the longitudinal directional leveling device 3a and the first right-angled directional leveling device 3b may be provided on the outer surface of the other end of the housing 3. Further, by way of example, various horizontal systems that can be used conventionally can be applied to the longitudinal directional level 3a and the first right-angled directional level 3b. For example, a water level can be applied to these levels. By adjusting the horizontal level by combining these two leveling systems, it is possible to measure the horizontal distance between the bridges superstructure (or the bridge superstructure and the alternation interval) So that the recording of the measurement position and the measurement interval for the safety diagnosis can be made more accurately.

FIG. 8 is a schematic diagram for explaining a bending portion of the beam gap measuring apparatus for safety diagnosis according to an embodiment of the present invention in which the bending portion is rotated relative to the linear portion (folding structure).

As described above, the housing 3 has the linear portion 31 in which the bar member 1 and the portion facing the longitudinal direction of the sheet member 2 are positioned, and the linear portion 31 in the direction of the first right angle of the sheet member 2 8, the folding portion 32 is formed so that the portion of the sheet member 2 facing the first perpendicular direction faces the longitudinal direction of the sheet member 2, and the folded portion 32 of the sheet member 2 Can be rotated about the second orthogonal direction with respect to the linear portion 31 so that the curved portion of the linear portion 31 can be straightened. That is, the interval measuring apparatus can be provided as a foldable type (a folding type boom interval measuring apparatus for safety diagnosis). For example, referring to FIG. 8, the bent portion 32 may be hinged 34 to be rotatable about the second perpendicular direction with respect to the linear portion 31. Thus, the reduction in durability of the sheet member 2 can be minimized. For example, when the folded state of the sheet member 2 is maintained for a long period of time, the elastic restoring force against the bending of the bent portion of the sheet member 2 is lowered and a part of the plastic deformation is completed, There is a possibility that the difficulty of protruding from the hole 33 in a partially bent state can not be generated. In consideration of this aspect, the sheet member 2 is maintained in a straight linear state rather than maintaining a partially curved state at an extra-measurement time (storage time, moving time, etc.) It is possible to more fundamentally prevent the measurement accuracy from decreasing due to the plastic deformation of the substrate 2. The housing 3 may also have a limit block that prevents the bent portion 32 from spreading at an angle greater than 90 degrees with respect to the linear portion 31. [ 8, a limit block is disposed outside the hinge shaft 34 connecting the bending portion 32 and the linear portion 31 to restrict the bending portion 32 to rotate only in a direction perpendicular to the hinge axis 34 . The limit block and the bending portion 32 may be provided with a unit structure that can be mutually fixed through a magnetic force coupling, a wedge coupling, or the like when they are partially in contact with the surface of the bending portion 32. The term "temporarily fixed" may mean a coupling having a fixing force not to be separated unless a user applies a predetermined external force (an external force for separating the bent portion 32 from the limit block). This temporary rigid coupling can be understood to be the same as or similar to the coupling method between the bar members.

8, at the time of rotation for the bending arrangement (the arrangement in which the bending portion 32 is bent in the direction of the first right angle from the longitudinal direction) with respect to the linear portion 31 of the bending portion 32, The sheet member 1 is long enough to bend the sheet member 2 and can be slightly pulled toward one side of the direction. Taking this into consideration, it is preferable that the interval value displayed on the interval display section 38 is displayed based on when the bent section 32 is bent with respect to the linear section 31 and placed in a state for interval measurement. In other words, the interval value displayed on the interval display unit 38 is determined by the length c of the portion facing the one direction of the first perpendicular direction and the length (c) of the end member of the sheet member 2 And the length (d) of the cantilever portion protruding from the cantilever portion (33). 8, the length c of the portion of the housing 3 facing the one direction of the first perpendicular direction of the housing 3 is set such that the bent portion 32 is inclined with respect to the linear portion 31 The first right angle direction from the end of the linear portion 31 of the housing 3 toward the other direction in the first right angle direction to the end of the first right angle direction of the bent portion 32 toward one direction, May refer to a length based on a direction.

Further, although not shown in detail in the drawings, the curved portion 51 is formed in a curved state in which a part of the sheet member 2 is curved and in a linear state in which the curved portion of the sheet member is straightened, And may be provided in the form of a flexible material tube in which a movable path is formed.

On the other hand, the linear portion 31 may have a rectangular cross-section with the normal of the plane having the outer surface facing the other of the first perpendicular direction. Accordingly, in the interval measurement, the outer surface of the housing 3 in the first right-angled direction facing the other direction can stably contact one wall surface of the two bridge superstructures 500.

Further, the interval measuring apparatus may include a stopper. The stopper may limit and allow movement of the handle. For example, the position of the bar member 1 can be fixed by restricting the movement of the handle by the stopper. In addition, since the movement of the handle is allowed by the stopper, a degree of freedom can be imparted to the movement of the bar member (1). Further, for example, the stopper may be provided so that movement of the handle is selectively allowed only when rotated by 90 degrees.

FIG. 9 is a schematic diagram for explaining a length-expanding structure of the beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention.

9, the linear portion 31 includes a connection housing block 311 connected to the bent portion 32 and a base housing block 312 directly or indirectly connected to the other end of the connection housing block 311 . Also, one or more expansion housing blocks 313 can be disposed between the connection housing block 311 and the base housing block 312. [ The extension housing block 313 can be disposed between the connection housing block 311 and the base housing block 312 so that the length extension of the linear portion 31 depends on the arrangement of the expansion housing block 313, It can be possible.

9, the bar member 1 includes a connecting bar member 11 at least partially disposed inside the connecting housing block 311 and having one end connected to the other end of the sheet member 2, And a base bar member 12 at least partially disposed inside the block 312 and having one end directly or indirectly connected to the other end of the connecting bar member 11. [ The driving force transmitting unit 4 is mounted on the base housing block 412 so as to transmit driving force for moving the base bar member 12 along the longitudinal direction to the base bar member 11 and the extended housing block 313 The other end of the expansion housing block 313 is connected to one end of the base bar member 12 and at least one end of the extension bar member 13 is connected to the other end of the connection bar member 11 Can be disposed. Accordingly, the length of the bar member 1 can be extended corresponding to the extension of the linear portion 31.

One end of the base bar member 12 may be connected to the other end of the connecting bar member 11 or the other end of the extending bar member 13 by a magnetic force. One end of the connecting bar member 11 may be connected to the other end of the other connecting bar member 11 or the other end of the extending bar member 13 by the magnetic force. The magnitude of the magnetic force can be set to be larger than the magnitude of the driving force so that the movement of the base bar member 12 can be interlocked with the connecting bar member 11 or the extending bar member 13. [

FIGS. 10 and 11 are views showing a structure of a length-expanding structure of FIG. 9; FIG. 11 is a perspective view of a bar extending from a base member to a base member; FIG. Between the bar member and the connecting bar member, between the base bar member and the connecting bar member, and the like).

10 and 11, one end of the base bar member 12 may have a structure connected to the other end of the connecting bar member 11 or the other end of the extending bar member 13 by wedge-engaging. One end of the connecting bar member 11 may have a structure that is connected to the other end of the other connecting bar member 11 or the other end of the extending bar member 13 by wedge joining. The size of the wedge connection can be set to be larger than the magnitude of the driving force so that the movement of the base bar member 12 can be interlocked with the connecting bar member 11 or the extending bar member 13. [

10 and 11, at the end of the wedge insertion portion inserted into the wedge recess when the wedge is engaged, a taper or a slope corresponding to the size (width) of the opening of the wedge depression is formed at the end of the wedge insertion portion, Can be formed. Although Figs. 10 and 11 show the wedge connection of the base bar member 12 and the connection bar member 11, the same wedge connection can be applied to the connection between the other bar members. In addition, the wedge joint structure is not limited to those shown in FIGS. 10 and 11, and various other types of wedge joint structures may be applied to the present interval measuring apparatus.

9, the base bar member 12 has a length in a range in which at least a part remains within the base housing block 312 (that is, a range in which the base bar member 312 does not completely deviate from the inside of the base housing block 312) And the expansion bar member 13 is arranged to be movable in the range in which at least a part remains within the expansion housing block 313 (that is, the range in which the expansion bar block 313 is not completely deviated from the inside of the base housing block 312) And the connecting bar member 13 is disposed within the connection housing block 313 in a range where at least a part thereof remains (that is, a range in which the connecting bar member 13 is not completely separated from the inside of the base housing block 312) , And the base bar member 12, the extension bar member 13, and the connecting bar member 11 are arranged so as to be movable along the longitudinal direction at a position corresponding to the length of the cantilever portion protruding to the maximum The length of the protruded cantilever portion may be longer than the length of the protruded cantilever portion. The base bar member 12 and the extension bar member 13 can be prevented from being deformed even when one end of the sheet member 2 protrudes to the outside of the end hole 33 to the maximum (when the length of the cantilever portion becomes maximum) And at least a portion of each of the connecting bar members 11 may remain within each of the base housing block 312, the expansion housing block 313, and the connection housing block 311.

Illustratively, each of the base bar member 12, the extension bar member 13, and the connecting bar member 11 includes a base housing block 312, an expansion housing block 313, and a connection housing block 311, Preventing unit 25 from being completely deviated along the lengthwise direction. The separation preventing unit 25 can be provided at the other end of each of the base bar member 12, the extension bar member 13 and the connecting bar member 11, and the base bar member 12, Each of the member 13 and the detachment preventing unit 25 of the connecting bar member 11 can be engaged with one end of each of the base housing block 312, the extending housing block 313, and the connecting housing block 311 have. Accordingly, at least one of each of the base bar member 12, the extension bar member 13, and the connecting bar member 11, which may occur during the movement in the longitudinal direction, is received by the base housing block 312, the expansion housing block 313 One or more of the escape prevention units are connected to one end of each of the base housing block 312, the expansion housing block 313, and the connection housing block 311 before separation from each of the connection housing block 311 and the connection housing block 311 is performed, The expansion housing block 313 and the connection housing block 311 of the base bar member 12, the extension bar member 13, and the connecting bar member 11, respectively, Can be prevented from departing from each other.

FIG. 12 is a schematic diagram for explaining an embodiment in which the housing (linear portion) of the length-expanding structure of FIG. 9 has a circular section in the shape of a beam interval measuring apparatus for safety diagnosis according to an embodiment of the present invention.

Referring to Fig. 12, the linear portion 31 of the housing 3 may have a circular cross-section. In this case, the linear portion 31 of the housing 3 may include an alignment member 37 on which an end face of the first normal direction perpendicular to the first normal direction is formed, have.

12, when the linear portion 31 of the housing 3 has a circular cross-section, the connection between the connection housing block 311, the base housing block 312 and the expansion housing block 313 is a screw Lt; / RTI > Thus, the length of the housing 3 can be more easily adjusted (extended length). In addition, when the housing 3 is extended in a threaded manner between circular cross sections, the connection between the bar members can be considered as a connection by a magnetic force and a connection by a wedge connection as described above. That is, the linear portion 31 has a circular cross section, and the base housing block 312 can be connected to the connection housing block 311 or the expansion housing block 313 through a screw connection. One end of the base bar member 12 may be connected to the other end of the connecting bar member 11 or the other end of the extending bar member 13. [ As such, the threaded engagement of the housing blocks can be implemented to be operatively associated with the engagement between the bar members. However, since the threaded connection between the circular cross sections is progressively performed by rotation, in the case of the wedge connection, it is preferable that the male and female wedge shapes shown in FIG. 10 are provided such that their cross sections are circular.

Conventionally, when measuring the interval between bridge superstructures, the user has to directly approach the bridge superstructure and directly measure the interval, thereby posing a risk of safety accidents, and the user's convenience is not considered. For example, if you want to measure the spacing between girders, you have to measure directly up to the pier and you can not measure the gap corresponding to the deep space in the space between the girder and the girder, even if you go up the pier. In addition, even when it is desired to measure the distance between the girder and the shift, the user has to measure directly on the alternate bearing surface.

However, according to the present gap measuring apparatus, a structure is provided in which the interval in the first perpendicular direction perpendicular to the longitudinal direction can be measured through advancing the bar member 1 in the longitudinal direction, and the structure is also formed in the form of a cantilever Since the protruding protruding structure is provided with simplicity, the interval measurement can be performed safely, easily, and accurately. According to the present interval measuring apparatus, even if the user does not go directly to a pier or an alternation, the interval of the bridge overhead structure can be measured on the track observer by using the extended length of the interval measuring apparatus. Further, according to this gap measuring apparatus, since the insertion length of the housing 3 can be measured, it is possible to grasp the position where the gap measurement is performed, so that the gap is measured for each girder (or slab) Therefore, the safety diagnosis can be made more systematically. Further, since the gap measuring apparatus has a simple structure, it can be easily handled, manufactured and repaired.

It will be understood by those of ordinary skill in the art that the foregoing description of the embodiments is for illustrative purposes and that those skilled in the art can easily modify the invention without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention.

1: bar member
11: Connection bar member
12: base bar member
13: Extension bar member
2: seat portion 1: bar member
11: Connection bar member
12: base bar member
13: Extension bar member
2: sheet member
21: end member
25:
3: Housing
3a: longitudinal directional level
3b: the first perpendicular direction horizontal scale
31:
311: Connection housing block
312: base housing block
313: Extended housing block
32:
33: end hole
34: Hinge coupling
38:
39: Insertion length indicator
37: Alignment member
4: Driving force transmitting unit
41: Reference member
5: member guide portion
51: Bunch
500: bridge superstructure

Claims (7)

An apparatus for measuring the spacing between a girder of two bridge superstructures (500) or alternating with a girder of a bridge superstructure (500) for safety diagnosis,
A bar member (1);
A sheet member (2) whose other end is connected to one end of the bar member (1);
The bar member (1) arranged to extend along the longitudinal direction is movably guided along the longitudinal direction, and extends along the longitudinal direction so as to be bent and extended in one direction out of a first right angle direction orthogonal to the longitudinal direction A housing (3) including a member guide portion (5) for movably guiding the arranged sheet member (2) along the longitudinal direction and the first right angle direction;
A driving force transmitting unit (4) for transmitting a driving force for moving the bar member (1) along the longitudinal direction to the bar member (1); And
(1) or the sheet member (2) with respect to the inner surface of the housing (3) so that the bar member (1) is guided to be linearly moved without departing from the longitudinal direction of the housing (3) And a gap holding member for holding the gap between the inner surface of the housing (3) and the bar member (1) or the sheet member (2)
The sheet member (2) is selectively bendable in the first bending direction only in a first bending direction bent in one direction out of the first perpendicular direction in the longitudinal direction, only when a bending moment acts at a reference bending moment or more , A bending moment that is equal to or greater than the reference bending moment,
The member guide portion 5 applies a bending moment exceeding the reference bending moment to the sheet member 2 so that a part of the sheet member 2 is bent in one direction out of the first right angle direction in the longitudinal direction, And a curved portion (51)
The width of the sheet member (2) in the second perpendicular direction perpendicular to the longitudinal direction and the first right angle direction is larger than the width of the first (3) A cross section of a curved sheet shape having an intermediate portion larger than a thickness in a direction perpendicular to the first direction and being convex in the other direction among the first direction,
The curvature of the sheet member (2) in the curved portion (51) is greater than that of the curved sheet-shaped curved surface convex in one direction among the first right angle direction, The curvature of a part of the curved surface is easily induced,
When the bar member (1) is moved along one direction of the longitudinal direction, the housing (3) is moved in the first right angle direction so that a part of the sheet member protrudes in one of the first right angle directions in the form of a cantilever And an end hole (33) through which the sheet member (2) passes in one direction,
The longitudinal direction of the housing 3 corresponds to a lateral direction or a skew direction of the bridge upper structure 500 and the first perpendicular direction corresponds to the longitudinal direction of the bridge upper structure 500 Direction or a horizontal direction orthogonal to the square direction, the second right angle direction corresponds to the vertical direction,
Wherein the sheet member (2) has an end member (21) at one end of which a normal line of the surface is formed with an end surface facing one direction of the first perpendicular direction,
The cross section of the sheet member 2 is formed in such a manner that when the cantilever portion including the end member 21 protrudes to the maximum from the end hole 33, The cantilever portion protruding to the maximum is not twisted,
The housing 3 includes a linear portion 31 in which the bar member 1 and a portion of the sheet member 2 facing the longitudinal direction are located, And a bent portion (32) on which the facing portion is located,
The bent portion 32 is formed in the linear portion 31 so that the curved portion of the sheet member 2 can be extended so that the portion of the sheet member 2 facing the first perpendicular direction faces the longitudinal direction. Is rotatable about the second perpendicular direction with respect to the first orthogonal direction. delete delete The method according to claim 1,
Wherein the length of the cantilever portion protruding to the maximum is a length capable of measuring the interval of the general bridge excluding the long bridge, and is set to 50 cm or less. The method according to claim 1,
The cross section of the sheet member 2 is formed so that when the cantilever portion including the end member 21 protrudes to the maximum from the end hole 33, And the reference bending moment is larger than the maximum bending moment that can be obtained. delete The method according to claim 1,
An interval display unit 38 for displaying an interval value corrected by taking into consideration the length of the cantilever portion protruded in the sheet member 2 together with the length of the housing with respect to the first right angle direction is formed on the outer surface of the housing 3, And an insertion length indicator (39) indicative of a length inserted between the two bridge supra structures (500) or alternating with the bridge superstructure (500) is formed in the housing (3) Device.
KR1020170123677A 2017-09-25 2017-09-25 Measuring apparatus for gap of bridge girder KR101858001B1 (en)

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JPS6015607U (en) * 1983-07-11 1985-02-02 トヨタ自動車株式会社 Gap measuring device
KR100804683B1 (en) * 2007-08-22 2008-02-18 주식회사 동우기술단 Bridge safty system
JP6015607B2 (en) 2013-09-18 2016-10-26 株式会社デンソー Air conditioning unit for vehicles
KR101656771B1 (en) * 2015-11-23 2016-09-12 정태하 Apparatus measuring the joint gap length of the bridge structure for the purpose of safety-check
KR101744013B1 (en) * 2016-11-28 2017-06-20 주식회사 위드이앤오 Apparatus for measuring joint gap length of bridge structure and method using thereof
KR101747178B1 (en) * 2017-01-19 2017-06-19 (주)동안기술 Measuring instrument of expansion joint gap for narrow space

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