KR102120979B1 - Displacement gauge for bridge bearing and bridge bearing with same - Google Patents

Abstract

The present invention relates to a displacement gauge for a bridge bearing and a bridge bearing having the same which can measure displacement in a longitudinal direction of a bridge, a direction perpendicular to the bridge, and a vertical direction, and track real displacement details for a displacement which has taken place. The displacement gauge for a bridge bearing comprises a pointer member connected to a lower plate of the bridge bearing to be supported, and a cover member coupled to an upper plate of the bridge bearing to be displaced with the upper plate and to cover the pointer member from above. The pointer member includes: a first pointer member connected to the lower plate to be supported, longitudinally formed in a direction perpendicular to a bridge, and provided with a first pointer sharply formed on the front end thereof; and a second pointer member crossing the first pointer member to be longitudinally formed in a longitudinal direction of the bridge, and having a second pointer sharply formed on the left end and the right end thereof. The cover member includes: a front window to block and enclose the upper surface and sides to prevent wastewater or rainwater falling from above from reaching the pointer member, and observe the relative displacement of the first pointer with respect to the cover member from the outside; and a side window on the left and the right to observe the relative displacement of the second pointer with respect to the cover member from the outside.

Description

Displacement amount gauge for bridge bearing and bridge bearing equipped with the same{DISPLACEMENT GAUGE FOR BRIDGE BEARING AND BRIDGE BEARING WITH SAME}

The present invention relates to a displacement amount gauge for a bridge bearing, in particular, it is possible to measure the displacement amount in both the axial direction, the bridge direction, and the vertical direction, and it is possible to track the actual displacement history of the displacement. And a bridge bearing having the same.

In general, in order to transmit the force received from the superstructure to the substructure, a support device, which is a support device, is installed at the boundary between the superstructure and the substructure, and the support is installed at a point (fixed point) for fixing the bridge functionally. It is divided into movable supports installed at the points (moving points) that facilitate the movement of the superstructure with respect to the fixed supports and the substructures. The movable supports are unidirectional supports that operate only to the left and right, and to the left, right, longitudinal, and transverse. There is a movable bi-directional bearing.

Among them, the movable support is required to have a structure that facilitates the movement of bridges due to temperature changes, dry shrinkage, creep, etc. of steel or concrete, which is a top plate structure, and includes metal supports and rubber supports.

The movable support as described above moves (stretching) the bridge, such as the upper structure of the bridge increases or decreases according to various external conditions (temperature change or vibration), and accordingly, the movable support also moves in the longitudinal and transverse directions. Is done.

That is, since the lower end of the support is coupled to and fixed to the lower structure of the bridge, and the upper end is fixed to the upper structure of the bridge, the upper structure of the bridge moves as the upper structure of the bridge expands and contracts.

The expansion and contraction of such a bridge is subject to inspection during the safety inspection of the bridge, and to measure the expansion and contraction, a measuring system is installed on the base to use.

In this regard, FIG. 1 shows a state in which a measuring system is installed on the bridge bearing 20. Here, the measuring system consists of a measuring plate 11 with a scale printed thereon and an indicator 12 for indicating the scale printed on the measuring plate 11 formed on the top of the body 13, the measuring plate (11) is provided with a measuring needle (19) indicating the scale printed on.

When the measurement system is installed on the bridge support as described above, when the top plate of the bridge is newly constructed due to climatic conditions, traffic, etc., the measurement plate 11 moves together when the upper plate of the bridge support 20 moves to the left or right. Accordingly, the state in which the indicator hand 14 of the indicator 12 indicates the central portion of the scale printed on the measuring plate 11 changes to indicate the left or right side from the center of the scale. 18) The position of the indicator needle 14 is also changed.

Thereafter, when the upper side of the base 20 returns to the original state, the indicator hand 14 again indicates the center of the scale, but the measuring instrument 18 does not return to the original position and is at a point moved outward. The reading of the scale indicated by the measuring needle 19 of the measuring instrument 18 at the position becomes the maximum value at which the bridge is stretched. Therefore, upon inspection of the bridge, after reading and recording the value of the scale indicated by the measuring needle 19 of the measuring instrument 18, the measuring instrument 18 is artificially returned to the original position.

However, according to such a conventional technique, it is possible to selectively measure the displacement amount in only one of the throttle direction and the weft direction, and it is not possible to measure both the throttle direction, the weft direction, and the up-down direction at the same time, and also tracking how displacement is achieved. There was a problem that it was difficult.

Korean Patent Publication No. 2000-0000347 (2000.01.15)

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and the object of the present invention is to measure displacement in both the throttle direction, the weaving direction, and the up-down direction, and the actual displacement history of displacement. It is to provide a displacement amount gauge for a bridge bearing and a bridge bearing having the same to enable tracking.

In order to achieve the above object, the displacement amount gauge for a bridge bearing according to the technical idea of the present invention is a displacement amount gauge for a bridge bearing, a guide member connected to and supported by a lower plate of the bridge bearing, and an upper plate of the bridge bearing It is made of a cover member that is coupled to and displaced together to cover the guide member from the upper side, and the guide member is connected to and supported by the lower plate, and is elongated in the crossing direction but is sharply formed at the front end. It is composed of a first guide member and a second guide member that is installed long in the throttle direction and intersects the first guide member, and has a second guide member sharply formed at the left end and the right end, respectively. , Surrounding the top and side by blocking the sewage or rainwater falling from the upper side does not reach the guide member, the front window and the cover member so that the relative displacement of the first indicator relative to the cover member can be observed from the outside It is a feature of the technical configuration that a side window is provided on the left and right sides, respectively, so that the relative displacement amount of the second guideline with respect to the outside can be observed from the outside.

Here, in the front window and the side window, a cross-shaped scale for measuring a horizontal displacement amount and a vertical displacement amount is displayed, respectively, and an indicator of each cross-shaped scale displayed in each window is indicated before each indicator in the corresponding direction is relatively displaced. It can be characterized as using as a reference point.

In addition, the first guide member is provided with a slide hole formed in the throttle direction, and the second guide member is installed to be slidable in the throttle direction through the slide hole, so that the cover member together with the upper plate of the bridge bearing is provided. When displaced in the throttle direction, the second guide member may be characterized by sliding along the cover member in the throttle direction.

In addition, guide grooves are formed along the longitudinal direction of the second guide member on the upper and lower surfaces of the second guide member, and the sliding hole of the second guide member is inserted into the slide hole in the state corresponding to the guide groove. It can be characterized in that the guide projection is formed to guide the stably made.

In addition, the first guide member is elastically supported by the first spring in a state in which the front end having the first guide member is inserted into the front insertion groove formed in the body of the first guide member, and is pushed by the front window of the cover member. It can be characterized by making it possible to retreat.

In addition, the second guide member is elastically supported by the second spring while the left end and the right end each having the second guide member are respectively inserted into the insertion grooves formed in the left and right sides of the body of the second guide member. It may be characterized in that it is possible to retract while being pushed by the side window of the cover member.

In addition, the first and second guides made of a steel material may be characterized by leaving a displacement trajectory while scratching the front and side windows made of acrylic.

On the other hand, the bridge bearing according to the present invention is characterized in that it includes the displacement amount gauge for the bridge support described above.

The displacement amount gauge for a bridge bearing according to the present invention and the bridge bearing having the same can measure displacement in both the throttle direction, the weaving direction, and the up and down direction, and it is possible to track the actual displacement history of displacement.

1 is a use state diagram of the displacement amount gauge according to an embodiment of the present invention
2 is a projection view for explaining the configuration of the displacement amount gauge according to an embodiment of the present invention
Figure 4 is a perspective view of the guide member in the displacement amount gauge according to an embodiment of the present invention
Figure 5 is a perspective view of the cover member in the displacement amount gauge according to an embodiment of the present invention
Figure 6 is a cross-sectional view of the cross section between the first guide member and the second guide member in the displacement amount gauge according to an embodiment of the present invention
7A and 7B are partial cross-sectional views for explaining the forward/backward structure of the first guide in the first guide member of the displacement amount gauge according to the embodiment of the present invention
8A and 8B are partial cross-sectional views for explaining the forward and backward movement of the first guide in the first guide member of the displacement amount gauge according to the modified embodiment of the present invention.
9A and 9B are partial cross-sectional views for explaining the forward/backward structure of the second guide in the second guide member of the displacement amount gauge according to the embodiment of the present invention
10 is a reference diagram for explaining the operation of the first guide and the second guide when the displacement, gauge and displacement in the vertical direction in the displacement amount gauge according to an embodiment of the present invention

With reference to the accompanying drawings, a displacement amount gauge for a bridge bearing according to embodiments of the present invention and a bridge bearing having the same will be described in detail. The present invention can be variously changed and can have various forms, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosure form, and it should be understood that it includes all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing each drawing, similar reference numerals are used for similar components. In the accompanying drawings, the dimensions of the structures are enlarged than actual ones for the sake of clarity of the present invention, or reduced in scale than actual ones in order to understand a schematic configuration.

Further, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. On the other hand, unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

<Example>

1 is a use state diagram of a displacement amount gauge according to an embodiment of the present invention, Figure 2 is a projection view for explaining the configuration of the displacement amount gauge according to an embodiment of the present invention, Figure 4 is a displacement amount according to an embodiment of the present invention It is a perspective view of a guide member in a gauge, and FIG. 5 is a perspective view of a cover member in a displacement amount gauge according to an embodiment of the present invention.

As shown, the displacement amount gauge 100 according to the embodiment of the present invention is supported by being connected to the lower plate 12 of the bridge support 10 and the first guide member 110 and the second guide member 120 It is coupled to the guide member made of a cross, the support member 130 for connecting and supporting the guide member to the lower plate 12 of the bridge support 10, and the upper plate 11 of the bridge support 10 The cover member 140 covering the guide member from the upper side while being displaced together is composed of main components.

The present invention allows the displacement amount to be measured in both the throttle direction, the weft direction, and the up-down direction by these main components, and is configured to be able to track the actual displacement history of the displacement.

Hereinafter, a gauge for a bridge bearing according to an embodiment of the present invention will be described in detail with respect to each of the above components.

First, a description will be given of a guide member formed by crossing the first guide member 110 and the second guide member 120.

The guide member is supported by being connected to the lower plate 12 by a support member 130 as shown in FIGS. 3 and 4 and is formed to be elongated in the cross direction, but the first guide 111 is sharply formed in the front end portion. It is provided with a first guide member 110 and a pair of second guides 121, which are installed long in the intersecting direction crossing the first guide member 110 and sharply formed at the left end and the right end, respectively. It is made of a second guide member 120.

The first guide member 110 is provided with a slide hole 112 formed in the throttle direction in the middle of the main body, so that the second guide member 120 can slide in the throttle direction while passing through the slide hole 112. As much as possible. In the slide hole 112, the sliding guide of the second guide member 120 is guided to be stably performed on the inner wall of the slide hole 112 in a state corresponding to the guide groove 120a formed in the second guide member 120 as shown in FIG. The guide protrusion 112a is formed. The guide projection (112a) is preferably formed in a pair in a symmetrical shape on the upper and lower surfaces in the inner wall of the slide hole (112).

The first guide member 110 is preferably configured to allow the first guide 111 to advance and retreat at the front end. For this purpose, as shown in FIGS. 7A and 7B, the front end portion provided with the first guide member 111 is installed therein while being inserted into the front insertion groove 114 formed in the body of the first guide member 110. It is elastically supported by one spring (113). Accordingly, when the upper plate 11 installed on the intermediate support 13 of the bridge support 10 along the upper structure of the bridge is displaced in the direction of the bridge, the first guide 111 is a front window of the cover member 140 ( 141) and retreat while being pushed.

In this configuration, the first indicator 111 continues to move forward and backward with respect to the front window 141 of the cover member 140 of the first indicator 111 made of a material made of acrylic material. It is that while maintaining the contact, the displacement trajectory is continuously left when the upper plate 11 is displaced in the axial direction and displaced in the vertical direction. Thus, it is possible to track the displacement of the throttle in the upper plate 11 and the displacement in the vertical direction of the upper plate 11 with respect to the lower plate 12 of the bridge bearing 10. The second guide member 120 is coupled to the slide hole 112 of the first guide member 110 in a penetrating state, and the first guide 111 is inserted into the front insertion groove 114 so as to advance and retreat. In order to be coupled to the first guide member 110, it is preferable that the first body 110a and the second body 110b are divided into two and then manufactured along the longitudinal direction.

Here, the front end portion of the first guide member 110 having the first guide member 111 may be formed to have a longer elongated shape as shown in FIGS. 8A and 8B. This is useful when the amount of displacement in the teaching direction is large.

The second guide member 120 is installed to be slidable in the throttle direction through the slide hole 112 of the first guide member 110, and the cover member together with the upper plate 11 of the bridge bearing 10. When 140 is displaced in the throttle direction, it is configured to slide in the throttle direction along the cover member 140. Guide grooves 120a are formed along the longitudinal direction on the upper and lower surfaces of the second guide member 120. 6, the guide groove 120a acts with the guide protrusion 112a formed on the inner wall of the slide hole 112, and the second guide member 120 slides the hole 112 of the first guide member 110 as shown in FIG. It contributes to slide stably without shaking in the state of passing through.

The second guide member 120 is preferably configured such that the left end and the right end with the second guide 121 can move forward and backward from the left and right sides, respectively. For this purpose, as shown in FIGS. 9A and 9B, the left end and the right end having a second guide 121 on the left and right, respectively, are insertion grooves formed in the left and right sides of the body of the second guide member 120. It is elastically supported by the second spring 123 installed therein while being inserted into each of 124. Thus, when the upper plate 11 of the bridge bearing 10 along the upper structure of the bridge is displaced in the axial direction, the second guide 121 is retracted while being pushed by the side window 142 of the cover member 140. Is done.

In this configuration, the second guide 121 of the left and right sides can be moved back and forth. The second guide 121 of steel is made of a material, and the side window 142 of the cover member 140 made of acrylic material. It is that the displacement trajectory is continuously left during the vertical displacement and the vertical displacement of the upper plate 11 while maintaining contact with respect to ). Thus, it is possible to track the vertical displacement and vertical displacement details of the upper plate 11 with respect to the lower plate 12 of the bridge bearing 10.

The support member 130 is provided for a role of connecting and supporting the first guide member 110 to the lower plate 12 of the bridge support 10. To this end, the support member 130 is a horizontal support 131 coupled to the upper surface of the side or circumference of the lower plate 12 of the bridge support 10, and the horizontal support 131 and the first guide member 110 It is preferable that the lower surface is connected to be simply made of the vertical support 132.

However, the support member 130 is preferably provided as having a simple shape if possible while being faithful only to the role of supporting the first guide member 110 with respect to the lower plate 12 of the bridge support 10. It is not limited to form or material.

The cover member 140 is installed in a state coupled to the side of the upper plate 11 of the bridge support 10, as shown in Figure 2, water or rain water falling from the upper structure does not corrode the guide member made of steel material In addition to the role of blocking, the second guide member 120 is moved relative to the first guide member 110 in the throttle direction. The cover member 140 has a shape surrounded by blocking the top and side surfaces of the guide member, and a front window 141 that allows the relative displacement of the first guide 111 relative to the cover member 140 to be observed from the outside. ), and the side window 142 is provided on the left and right sides so that the relative displacement of the second guide 121 relative to the cover member 140 can be observed from the outside.

Cross-scales 141a, 141b, 142a, and 142b for measuring horizontal displacement and vertical displacement are displayed on the front window 141 and the left and right side windows 142, respectively. In this way, the intersection of the cross-shaped scales 141a, 141b, 142a, and 142b displayed on each window is taken as an initial reference point indicated before each displacement of the indicator in the corresponding direction. The front window 141 and the side window 142 are transparent or translucent materials, and are made of acrylic or similar material having a stimulus easily scratched by a sharp steel material. ) And the second guide 121 to leave a displacement trajectory.

In the case of the displacement amount gauge 100 according to the embodiment of the present invention described above, the first guide 111 and the second guide 121 are viewed through the front window 141 and the left and right side windows 142. As illustrated in FIG. 10, the displacement amount is measured for displacements in all directions, such as throttle displacement (b), throttle and orthogonal displacement (c), throttle, weft and up and down displacement (d) in the initial setting state (a). Displacement tracking is possible.

The preferred embodiments of the present invention have been described above, but the present invention can use various changes, modifications, and equivalents. It is clear that the present invention can be equally applied by appropriately modifying the above embodiments. Therefore, the above description is not intended to limit the scope of the present invention as defined by the following claims.

110: first guide member 111: first guide
120: second guide member 121: second guide
130: support member 140: cover member

Claims (8)

As a displacement gauge for bridge bearings,
It consists of a guide member connected to and supported by the lower plate of the bridge support, and a cover member coupled to the upper plate of the bridge support and displaced together to cover the guide member from above,
The guide member,
It is connected to and supported by the lower plate, and is formed long in the crossing direction, but has a first guide member having a first guide sharply formed at the front end, and is installed long in the throttle direction crossing the first guide member and left side It consists of a second guide member having a second guide each sharply formed at the right end,
The cover member is surrounded by blocking the upper surface and the side surface to prevent the sewage or rainwater falling from the upper side from reaching the guide member, and a front window to allow the relative displacement of the first guider relative to the cover member to be observed from the outside, A displacement amount gauge for a bridge bearing, each having side windows on the left and right sides so that the relative displacement of the second guider relative to the cover member can be observed from the outside. According to claim 1,
Cross-scales for measuring the amount of displacement in the horizontal direction and the amount of displacement in the vertical direction are displayed on the front window and the side window, respectively, and an intersection point of the cross-shaped scale displayed on each window is a reference point for instructing each indicator in the corresponding direction before relative displacement. Displacement gauge for the bridge bearing, characterized in that. According to claim 1,
The first guide member is provided with a slide hole formed in the throttling direction, and the second guide member is installed so as to be slidable in the throttling direction through the slide hole, so that the cover member together with the upper plate of the bridge bearing is throttled. A displacement amount gauge for a bridge bearing, characterized in that the second guide member slides in the throttle direction along the cover member when it is displaced to. According to claim 3,
A guide groove is formed along the longitudinal direction of the second guide member on the upper and lower surfaces of the second guide member, and the sliding operation of the second guide member is stable on the inner wall of the slide hole in a state corresponding to the guide groove. Displacement gauge for the bridge bearing, characterized in that the guide projection is formed to guide to be made. According to claim 3,
The first guide member is resiliently supported by the first spring while being pushed by the front window of the cover member while the front end having the first guide member is inserted into the front insertion groove formed in the body of the first guide member. A displacement amount gauge for a bridge bearing, characterized in that it is made possible. The method of claim 5,
The second guide member is elastically supported by a second spring while the left end and the right end, each having a second guide member, are respectively inserted into the insertion grooves formed in the left and right sides of the body of the second guide member. Displacement gauge for a bridge bearing, characterized in that it can be retracted while being pushed by the side window of the member. The method of claim 6,
A displacement gauge for a bridge bearing, characterized in that the first and second guides made of steel material leave a displacement trajectory while scratching the front and side windows made of acrylic material. Bridge support, characterized in that it comprises a displacement gauge of any one of claims 1 to 7.

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