KR102378670B1 - Edge Distance Measuring Device for Bridge Safety Inspection - Google Patents

Abstract

The present invention relates to an edge distance measuring device for bridge safety inspection, which measures the edge distance of a support provided between an abutment or a pier, which is the lower structure of a bridge, and a girder, which is the upper structure of the bridge. The edge distance measuring device comprises: a first measuring body which is a rod-shaped body having a predetermined length, has a hollow inside, has a pair of insert fitting holes formed in a long-hole structure in upper and lower edges thereof to draw in and out a pair of graduation bars of a second measuring body in a longitudinal direction, and has gradations marked on the outer surface thereof and used to measure an edge distance; the second measuring body which includes the pair of graduation bars inserted into the pair of insert fitting holes of the first measuring body and provided so that the length can be varied by adjusting the length at which the graduation bars are inserted, and a bridge support contact member extending from and integral with the pair of graduation bars and having an outer opening; and a pivoting member which is hinged to an upper edge of the first measuring body, is vertically arranged according to rotating states, and is in close contact with or horizontally arranged on the vertical surface of the lower structure of an abutment or a pier to be in close contact with the first measuring body. Regardless of the installation state of a steel or elastic member on a bridge support side, the edge distance to the vertical surface of the lower structure of the abutment or the pier can be easily measured. In measuring a bridge-side edge distance, either a manual or automatic method can be selected, or both the manual and automatic methods can be used to measure the edge distance, thereby increasing accuracy and reducing measurement errors.

Description

Edge Distance Measuring Device for Bridge Safety Inspection}

The present invention relates to an edge distance measuring device for bridge safety diagnosis, and more particularly, it enables the use of varying the length as needed when measuring the edge distance on the bridge side, and secures the ease and accuracy of measuring the edge distance on the bridge side It relates to an edge distance measuring device for bridge safety diagnosis that can be used and provided with ease and convenience according to portability and storage.

In general, a bridge consists of an upper structure that directly supports the load caused by a vehicle moving on the upper part and a lower structure for supporting the upper structure. is constructed

In addition, the bridge is constructed to include a support provided between the abutment or the pier and the bridge girder.

The support part supports the fixed load on the bridge girder side as well as the moving load generated while the vehicle moves, and in addition, by accommodating the displacement in the direction of the bridge axis due to the change of temperature or the impact such as wind power and seismic force, and the displacement due to expansion and contraction. It functions to extend the life cycle of the bridge.

In this way, the support provided on the upper surface of the abutment or pier must secure a structurally effective edge distance for safety. That is, in order to have the most efficient load-resisting structure for the fixed and moving loads of the bridge girder, it is required to secure a certain value or more in the distance between the support brigade in the direction of the bridge and the edge of the abutment or pier.

Edge distance on the bridge side indicates the distance from the edge of the support to the edge of the abutment or pier side when the support is forced. It represents the distance to the edge of the edge.

The edge distance of the bridge support part is used for safety diagnosis inspection of bridges. Conventionally, the edge distance is measured using a tape measure. However, since the tape measure has a flexible body and bending occurs, precision and accuracy are lowered. There was a problem in that the error increased, and since the center of the anchor bolt was arbitrarily determined by the measurer and then measured, there was a problem of poor accuracy.

Accordingly, in order to solve the problems of the prior art, edge distance measuring devices for bridge safety diagnosis incorporating various structures or methods have been developed and disclosed by technical proposals.

For example, in Korean Patent Registration No. 10-1695324, "The edge distance is measured by attaching a fixed plate to the lower plate of the pedestal, and a vertical member movable along the horizontal member to the pier to measure the edge distance. Disclosed is "A device for measuring the edge distance of a bridge seat device at the time of bridge safety diagnosis, which is easy to move and carry by providing it as possible."

In addition, in Korean Patent Registration No. 10-1964405, "a body mounted on the end of a bridge lower structure, an on-off switch, a display window, and a mounting plate formed on the top; vertically protruding from the top of the body, the upper part A movable body on which a distance measuring sensor is formed; a device for measuring and inspecting the edge distance of a bridge bearing including a receiver provided with a reflector that is formed on one side of the upper surface of the bridge lower structure to receive and reflect the light wave generated by the distance measuring sensor. are doing

In addition, in Korean Patent Registration No. 10-2191175, "a base part that is in close contact with the edge of the bridge substructure; a setting part that is rotatably coupled to the base part and is provided to adjust the height of the measurement part; and a part of the setting part The horizontal is adjusted by the setting part while passing through the part, and the measuring part measures the distance from the center of the anchor bolt for fixing the pedestal to the edge of the abutment or pier; including, but the measuring part measures the edge distance Disclosed is "a bridge bearing edge distance measuring device including a ruler; a guide part in which one side of the ruler is accommodated and guides the movement of the ruler."

However, it can be said that the above-mentioned prior art has a difference in structural characteristics and measurement method from the edge distance measuring device for bridge safety diagnosis of the present invention proposed below.

Republic of Korea Patent Publication No. 10-1695324 Republic of Korea Patent Publication No. 10-1964405 Republic of Korea Patent Publication No. 10-2191175

The present invention has been devised to solve the problems of the prior art and was devised in consideration of this, and it enables the use of varying the length as needed when measuring the edge distance on the bridge side, and secures the ease and accuracy of measuring the edge distance on the bridge side The purpose of the present invention is to provide an edge distance measuring device for bridge safety diagnosis that allows for ease and convenience according to portability and storage.

It is an object of the present invention to provide an edge distance measuring device for bridge safety diagnosis, which enables the edge distance measurement operation to be easily performed regardless of the installation state of the bridge support side steel or elastic member.

The present invention allows to select a manual method or an automatic method for measuring the edge distance on the bridge side, sometimes to measure the edge distance by using both the manual method and the automatic method, and to increase the measurement accuracy and reduce the measurement error An object of the present invention is to provide an edge distance measuring device for safety diagnosis of a bridge.

The edge distance measuring device for bridge safety diagnosis according to the present invention for achieving the above object is a bridge for measuring the edge distance of a support part provided between an abutment or pier, which is a lower structure of a bridge, and a girder, which is an upper structure of the bridge. In the edge distance measuring device for safety diagnosis, a rod-shaped body having a certain length, having a hollow inside, but having a long hole structure at the upper and lower edges, a pair of insertion fittings in which the scale forming bar on the side of the second measurement body is formed so as to be able to enter and exit in the longitudinal direction a first measuring body having a hole and displaying a scale used for measuring the edge distance on the outer surface; A pair of scale forming bars which are provided and spaced vertically and spaced apart so as to be inserted into a pair of insertion fitting holes on the side of the first measurement body, but to be variable in length by adjusting the length to be inserted, and the pair of scale forming bars are integrated a second measuring body formed and comprising a bridge bearing contact having an outer opening; A rotation member that is hinged to the upper edge of the first measurement body and is vertically arranged according to the rotational state to be in close contact with the vertical surface of the substructure of an abutment or pier, or horizontally arranged to be in close contact with the first measurement body; It is characterized in that it includes.

Here, in the case where the bridge-side support part is forcibly installed on the upper end of the outer surface of the first measurement body, the upper graduated bar on the side of the second measurement body, and the upper end of the outer surface of the bridge support contact hole, alternately from the outer surface of the support or A first scale part is formed for use in measuring the edge distance to the vertical plane on the side of the lower structure of the pier, and the lower part of the outer surface of the first measuring body and the lower part of the outer surface of the lower scale forming bar on the side of the second measuring body and the bridge bearing contact hole are formed. In the case where the support part is installed as an elastic member, the second scale part for measuring the edge distance from the middle part of the anchor bolt to the vertical surface of the abutment or the substructure side of the pier may be formed.

Here, the rotating member has a slide movable body which is located on the front side based on the vertical arrangement state and is provided to be slidably movable in the up and down direction so as to be used by changing the length as needed, but the rotating member is inside A hollow part is formed in the upper and lower part to be slideable in the vertical direction through insertion and an opening connected to the hollow part is formed in the center of the front surface, and the slide body has a certain length, but in the hollow part on the rotating member side. It is provided so that it can slide by insertion, and the central portion in the longitudinal direction is formed in a protruding structure and exposed to the opening on the side of the rotation member so that the central projection of the slide body is located on the same plane as the front surface of the rotation member By providing it, even if the length is extended, it can be configured to be in close contact with the vertical surface of the abutment or the lower structure of the pier.

Here, a transmitting transducer that outputs an ultrasonic wave or a light source is installed at the hollow inner end of the first measurement body, and an ultrasonic wave or a light source output from the transmitting probe is received on the bridge bearing contact port on the second measuring body side. It may be a configuration to install a transducer.

Here, a distance measuring sensor that emits light waves is installed at the hollow inner end of the first measurement body, and a light wave reflector is installed on the bridge bearing contact port on the second measurement body side.

Here, the distance measuring sensor may be any one selected from an ultrasonic sensor, an infrared sensor, a lidar sensor, a radar sensor, and a photosensor.

Here, the position between the first measurement body and the second measurement body and the lower end of the lower end in contact with the horizontal surface of the lower structure of the abutment or pier to prevent sagging on the side of these connecting parts; further includes and the anti-sag device is a connecting block having a hollow that is inserted into the first and second measuring bodies, respectively, and a leg integrally connected to the connecting block and provided in a multi-stage structure so that the length can be varied in the downward direction. It may be a configuration including a part.

According to the present invention, it is possible to easily measure the edge distance to the vertical surface of the abutment or the lower structure of the bridge by covering all of them regardless of the installation state of the steel or elastic member on the bridge support part (3) side. Selecting either the manual method or the automatic method, or sometimes using both the manual method and the automatic method, can provide a useful effect of increasing the accuracy of measuring the edge distance and reducing the measurement error.

According to the present invention, when measuring the edge distance on the bridge side, it can be used while varying the length as needed, and it is possible to ensure the ease and accuracy of measuring the edge distance on the bridge side, and to provide ease and convenience according to portability and storage It can provide useful effects that can be

1 is a perspective view showing an edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention.
2 is a front view showing an edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is a configuration diagram including a first scale part and a second scale part.
3 is a cross-sectional view showing a main part of the edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is an exemplary view including a state in which a measuring sensor is mounted.
4 is a perspective view showing an edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is an exemplary view showing a variable length structure.
5 is a front view showing an edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is a configuration diagram including a deflection prevention device.
6 is a side view showing an edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is a view for explaining a rotating member including a slide moving body.
7 is an exemplary view showing the use state of the edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is a view showing the edge distance measurement state when the bridge support part is forcibly installed.
8 is another exemplary view showing the use state of the edge distance measuring device for bridge safety diagnosis according to an embodiment of the present invention, and is a view showing the edge distance measurement state when the bridge support part is installed with an elastic member.

Preferred embodiments of the present invention will be described with reference to the accompanying drawings as follows, and through such detailed description, it will be possible to better understand the purpose and configuration of the present invention and its features.

The edge distance measuring apparatus 100 for bridge safety diagnosis according to an embodiment of the present invention is a device for measuring the edge distance of a support provided between an abutment or pier, which is a lower structure of a bridge, and a girder, which is an upper structure of the bridge.

In addition, we propose a measuring device that can easily measure all of the edge distances on the bridge side regardless of the state in which the bridge support part is installed by force or by an elastic member.

To this end, the edge distance measuring device 100 for bridge safety diagnosis according to an embodiment of the present invention is, as shown in FIGS. 1 to 8, a first measuring body 110, a second measuring body 120, a rotating member ( 130).

The first measurement body 110 is a rod-shaped body having a certain length, and has a hollow inside, but has a long hole structure at the upper and lower edges, and the scale forming bars 121 and 122 on the side of the second measurement body 120 are formed in the longitudinal direction. It has a pair of insertion holes 111 and 112 that are formed so as to be able to enter and exit, and the scale used for measuring the edge distance is displayed on the outer surface.

In this case, the scale is divided into a first scale part 101 and a second scale part 102 .

The first scale part 101 is displayed on the upper end of the outer surface of the first measurement body 110, and as shown in the example shown in FIG. 7, the bridge side support part 3 is forced. When installed, it is provided for use in measuring the edge distance from the outer surface of the support part (3) to the vertical surface of the substructure (2) side of the abutment or pier.

The second scale portion 102 is formed by being displayed on the lower end of the outer surface of the first measurement body 110, and as shown in the example shown in FIG. It is provided for use in measuring the edge distance from the middle part of the anchor bolt for fixing to the vertical surface of the abutment or the substructure (2) side of the pier.

The first scale part 101 and the second scale part 102 are also displayed on the scale forming bars 121 and 122 and the bridge support contact hole 123 on the side of the second measurement body 120, respectively. It is formed in a form that has continuity with each other so that it can be used according to its intended use.

The second measurement body 120 is inserted and fitted into a pair of insertion fitting holes 111 and 112 on the side of the first measurement body 110 so that the length can be varied by adjusting the length to be inserted and positioned at the top and bottom. It includes a pair of scale forming bars 121 and 122 spaced apart, and a bridge bearing contact 123 extending to and integrally formed with the pair of scale forming bars 121 and 122 and having an outer opening 123a. do.

At this time, a scale is also displayed on the second measuring body 120 , and is formed by dividing the first scale part 101 and the second scale part 102 .

The first scale part 101 is located at the upper end of the outer surface of the upper scale forming bar 121 and the bridge support contact hole 123, and when the bridge-side support part 3 is installed by force, the bridge support part (3) It is formed for use in measuring the edge distance from the outer surface to the vertical surface of the abutment or the substructure (2) side of the pier.

The first scale portion 101 is formed by marking the scale from the end face of the bridge support contact hole 123 .

The second scale part 102 is located at the lower end of the outer surface of the lower scale forming bar 122 and the bridge support contact hole 123, and when the bridge side support part 3 is installed as an elastic member, an anchor bolt for fastening ( It is formed for use in measuring the edge distance from the middle part of 4) to the vertical plane on the side of the abutment or the substructure (2) of the pier.

The second scale portion 102 is formed by marking the scale from the middle point of the bridge bearing contact hole 123, that is, the middle point on the anchor bolt side.

The rotation member 130 is hinge-coupled to the upper edge of the first measurement body 110 so as to be rotatably connected, and is rotated to the first measurement body 110 according to the rotational state. It is provided so that it can be placed in close contact with the first measurement body 110 by vertically intersecting and in close contact with the vertical surface on the side of the substructure 2 of the abutment or pier, or by horizontally disposing.

A scale may be displayed on the outer surface of the rotating member 130 .

The first measurement body 110 and the rotation member 130 each have a circular hinge coupling part, and are formed to be positioned to overlap each other, and are supported and coupled to form a mutual rotation structure by fastening a hinge pin to the overlapping hinge coupling part.

The rotating member 130 has a slide movable body 131 located on the front side based on the vertical arrangement state and provided to be slidably movable in the vertical direction, and may be provided to be used by changing the length as necessary. .

To this end, the rotating member 130 has a slide movable body 131 located on the front side based on the vertical arrangement state and provided to be slidably movable in the vertical direction. , the rotating member 130 has a hollow inside it is provided to slide in the vertical direction with respect to the slide moving body 131 through insertion fitting, and an opening connected to the hollow part in the center of the front surface is formed. do.

In addition, the slide moving body 131 has a certain length and is provided to be slidably movable by being inserted into the hollow part on the side of the rotating member 130, and the central part in the longitudinal direction is formed in a protruding structure to be inserted into the opening at the side of the rotating member 130. By exposing, the central protrusion of the slide moving body 131 is positioned on the same plane as the front surface of the rotating member 130, so even if the length is extended, it is on the vertical surface of the lower structure 2 of the abutment or pier. Constructed to fit tightly.

Through this, even if the length on the side of the rotating member 130 is changed by moving the slide moving body 131, it is possible to adhere to the vertical surface of the substructure 2 side of the abutment or pier, so that the first measurement body 110 and the second measurement body (120) side horizontal arrangement can be maintained and can provide the advantage of performing a stable measurement of the edge distance.

In addition, in the present invention, the lower end is provided so that the lower end is in contact with the horizontal surface of the lower structure 2 side of the position and the alternating or pier between the first measuring body 110 and the second measuring body 120, the first measuring body 110 And it is possible to have a configuration that further includes a sag prevention device 140 that functions to prevent sagging on the side of the connection part of the second measurement body 120 .

That is, even when the second measuring body 120 is extended as much as possible on the first measuring body 110 , the horizontal state such as preventing sagging can be maintained, so that the edge distance can be measured more accurately.

The anti-sag 140 is a connection block 141 having an inner hollow in which both ends are respectively inserted into the first measurement body 110 and the second measurement body 120, and the connection block 141 is integrated with It is connected and includes a leg portion 142 provided in a multi-stage structure so that the length is variable in the lower direction.

In addition, in the present invention, in measuring the edge distance for bridge safety diagnosis, the manual method or the automatic method is selected by grafting the automatic measurement method to the manual measurement method measured through the above-described configuration, or sometimes both the manual method and the automatic method are used. It may further include the following components to measure the edge distance.

First, as an example for adding an automatic measurement method, a transmission probe 150 for outputting ultrasonic waves or a light source is installed at one (right) end in the hollow of the first measurement body 110 side, and the second measurement It can have a configuration in which the receiving transducer 160 for receiving the ultrasonic wave or light source output from the transmitting transducer 150 is installed on the main body 120 side bridge bearing contact 123 .

That is, the bridge edge distance can be measured in a manner of measuring the distance by checking the time received by the receiving probe 160 with respect to the ultrasonic wave or the light source transmitted from the transmitting probe 150 .

At this time, in the automatic method using the sending probe 150 and the receiving probe 160, the final edge distance is calculated in the form of adding a set value for each situation to the distance estimation value through the sending probe 150 and the receiving probe 160. , [distance calculated value + α] is preferably calculated as the final value.

In other words, when the bridge support part 3 is installed by force, the final calculated value is calculated by setting the length of the bridge support contact port 123 on the side of the first measurement body 120 to the 'α' value. When the bridge support part 3 is installed as an elastic member, the starting point must be formed at the midpoint of the anchor bolt 4 side, so the length for the bridge support contact port 123 on the first measurement body 120 side should be Set it to '1/2α' to calculate the final calculated value.

And, as another example for adding an automatic measurement method, a distance measuring sensor that emits light waves is installed at one (right) end of the hollow inside the first measurement body 110 side, and the second measurement body 120 side It may be configured to install a light wave reflector that receives and reflects light waves on the bridge bearing contact 123 .

The distance measuring sensor can be said to be a configuration that replaces the sending contactor 150 , and the light wave reflector can be called a configuration replacing the receiving probe 160 .

Here, the distance measuring sensor may be any one selected from an ultrasonic sensor, an infrared sensor, a lidar sensor, a radar sensor, and a photosensor.

In the configuration of this other example, the final edge distance is calculated in the form of adding a set value for each situation to the distance estimate, and it is preferable to finally calculate the distance as a [distance estimate + α] value. For more detailed technology, the above-described technical content shall be applied mutatis mutandis.

On the other hand, the edge distance measuring device 100 for safety diagnosis of a bridge according to the present invention has a prefabricated configuration between the components, has a configuration that can reduce the length and volume when carrying and storing, and includes a storage box for storing these components. Can be, the storage box is preferably configured with a handle.

Accordingly, through the edge distance measuring device 100 for bridge safety diagnosis according to the present invention having the above configuration, depending on the installation state of the steel or elastic member on the bridge support part 3 side, the lower part of the abutment or pier The edge distance to the vertical plane on the structure side can be easily measured, and when measuring the edge distance on the bridge side, either the manual method or the automatic method can be selected, or sometimes both manual and automatic methods are used to measure the edge distance. It can provide the advantage of increasing the measurement error and reducing the measurement error.

The embodiments described above are merely illustrative of preferred embodiments of the present invention and are not limited to these embodiments, and various modifications and variations by those skilled in the art within the technical spirit and claims of the present invention It will be said that this can be done, and it will be said that it falls within the scope of the technical rights of the present invention.

100: edge distance measuring device 101: first division
102: second scale part 110: first measurement body
111, 112: insertion hole 120: second measurement body
121: upper scale forming bar 122: lower scale forming bar
123: bridge bearing contact 123a: outer opening
130: rotating member 131: slide moving body
140: anti-sag 150: outgoing probe
160: receiving probe

Claims (7)

In the edge distance measuring device for bridge safety diagnosis for measuring the edge distance of a support provided between an abutment or pier, which is a lower structure of the bridge, and a girder, which is an upper structure of the bridge,
A rod-shaped body having a certain length, having a hollow inside, and a pair of insertion holes in which the second measuring body side scale forming bar is formed so as to be able to enter and exit in the longitudinal direction in a long hole structure at the upper and lower edges, and the edge distance from the outer surface a first measurement body on which a scale used for measurement is displayed;
A pair of scale forming bars which are provided and spaced vertically and spaced apart so as to be inserted into a pair of insertion fitting holes on the side of the first measurement body, but to be variable in length by adjusting the length to be inserted, and the pair of scale forming bars are integrated a second measuring body formed and comprising a bridge bearing contact having an outer opening;
A rotation member that is hinged to the upper edge of the first measurement body and vertically arranged according to the rotational state to be in close contact with the vertical surface of the substructure of an abutment or pier, or horizontally arranged to be in close contact with the first measurement body; includes,
In the case where the bridge-side support is forcibly installed on the upper end of the outer surface of the first measurement body and the upper graduated bar on the side of the second measurement body and the upper end of the outer surface of the bridge support contact hole, on the outer surface of the support, the abutment or the lower part of the pier A first scale part is formed for use in measuring the edge distance to the vertical plane on the side of the structure,
When the support part is installed as an elastic member at the lower end of the outer surface of the first measurement body and the lower graduated bar on the side of the second measurement body and the lower end of the bridge support contact hole, from the middle part of the anchor bolt to the vertical surface of the substructure side of the abutment or pier Edge distance measuring device for bridge safety diagnosis, characterized in that the second scale part for use in measuring the edge distance is formed. delete The method of claim 1,
The rotating member is provided with a slide movable body which is located on the front side based on the vertical arrangement state and is provided to be able to slide in the up and down direction so as to be used by changing the length as necessary,
The rotating member is provided with a hollow part on the inside to be slideable in the vertical direction through insertion fitting, and an opening connected to the hollow part is formed in the center of the front surface,
The slide body has a certain length and is slidably provided by being inserted into the hollow part on the side of the rotating member, and the central protruding part of the slide body is formed by forming a protruding structure in the longitudinal direction and exposed to the opening on the side of the rotating member. Edge distance measuring device for bridge safety diagnosis, characterized in that by providing it to be positioned on the same plane as the front surface of the rotating member, it is configured so that it can be closely attached to the vertical surface of the abutment or the substructure side of the pier even when the length is extended. The method of claim 1,
A transmitting probe that outputs ultrasonic waves or a light source is installed at the hollow inner end of the first measurement body,
Edge distance measuring device for bridge safety diagnosis, characterized in that a receiving probe receiving the ultrasonic wave or light source output from the transmitting probe is installed on the bridge bearing contact port on the side of the second measuring body. The method of claim 1,
A distance measuring sensor is installed at the hollow inner end of the first measuring body side,
Edge distance measuring device for bridge safety diagnosis, characterized in that a light wave reflector is installed on the bridge bearing contact port on the side of the second measuring body. 6. The method of claim 5,
The distance measuring sensor,
An edge distance measuring device for bridge safety diagnosis, characterized in that it is any one selected from an ultrasonic sensor, an infrared sensor, a lidar sensor, a radar sensor, and a photosensor. The method of claim 1,
a sag prevention device provided so that the lower end is in contact with the horizontal plane on the side of the substructure of the position and the abutment or pier between the first measurement body and the second measurement body to prevent sagging on the side of these connection parts; further comprising,
The anti-sag,
It characterized in that it comprises a connecting block having a hollow and inserted into the first and second measuring body, respectively, and a leg part integrally connected to the connecting block and provided in a multi-stage structure so as to be variable in length in the lower direction. Edge distance measuring device for bridge safety diagnosis.

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