KR101853619B1 - Spherical bearing having detachable trapped part for bridge - Google Patents

Spherical bearing having detachable trapped part for bridge Download PDF

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Publication number
KR101853619B1
KR101853619B1 KR1020170085939A KR20170085939A KR101853619B1 KR 101853619 B1 KR101853619 B1 KR 101853619B1 KR 1020170085939 A KR1020170085939 A KR 1020170085939A KR 20170085939 A KR20170085939 A KR 20170085939A KR 101853619 B1 KR101853619 B1 KR 101853619B1
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South Korea
Prior art keywords
bearing
jaw
bridge
present
engaging
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KR1020170085939A
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Korean (ko)
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방경환
이효수
유승규
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(주)광원아이앤디
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Publication of KR101853619B1 publication Critical patent/KR101853619B1/en

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/04—Bearings; Hinges
    • E01D19/042—Mechanical bearings
    • E01D19/046—Spherical bearings

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

Abstract

The present invention relates to a spherical bearing (1) for a bridge having a detachable engagement unit. More specifically, in order to restrict movement of a load transmission member (10) disposed on an upper side in the throttling direction, the engagement unit (70) formed on both sides of a bearing accommodation member (50) is engaged with the bearing accommodation member (50). Thus, the present invention embodies an easy release of a bridge superstructure and the spherical bearing (1) for a bridge installed between the bridges or alternations. As a result, the present invention makes it possible to quickly and effectively perform maintenance and to reduce a cost of manufacturing the bearing accommodation member (50) with ease.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a spherical bearing having a detachable engagement portion,

More particularly, the present invention relates to a bearing for a bridge (1) having a detachable engaging portion, and more particularly, to a bearing of a bearing receiving member (50) for restricting movement of a load transmitting member (10) The engagement portion 70 formed on the side surface can be detachably attached to the bearing housing member 50 to realize the easy release of the bridge superstructure and the bridge spherical bearing 1 provided between the bridge or the bridge The present invention relates to a spherical bearing capable of quickly and effectively performing maintenance and an effect of cost reduction due to the easy production of the bearing housing member.

A bridge support is a structure that is positioned between an upper structure of a bridge and a bridge or an alternation and resists the upper self weight and plays a role of receiving the horizontal force at all times and earthquake. Various types of bridge supports have been developed to date In the market.

Specifically, bridge supports are generally classified as steel supports, rubber supports and special supports, and steel supports can be classified into various types such as pot bearing and spherical bearing.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spherical bearing (a spherical bearing) among various kinds of bridge supports, and a problem of a conventional spherical bearing will be described below.

In general, spherical bearings have larger capacity for rotating capacity, smaller deflection for vertical load, and negative reaction force than other bridge supports. In the case of general railway bridges, spherical bearings are preferred because they are relatively short in span and relatively active.

1 is a reference view showing that a spherical bearing is installed between a superstructure for a bridge and a pier or an alternation; FIG. 2 is a perspective view of a conventional spherical bearing. Hereinafter, a conventional spherical bearing will be described with reference to FIGS. 1 and 2. FIG.

Among the spherical bearings, the spherical bearing (SB) provided with the stopper on the lower plate generally comprises an upper plate (U) coupled to the bridge upper structure (100) by anchor bolts, a bearing inserted into the hemispherical groove of the lower plate A plate B and a lower plate L mounted on the base plate P to receive the insertion of the bearing plate B and fixed to the bearing concrete of the bridge or pier 200 by the anchor bolt A And a base plate (P). The upper plate U includes a protrusion U1 protruding downward on both sides of the lower surface of the lower plate U. The protrusion U1 has a pair of stoppers D1 formed on both sides of the lower plate D So as to limit the throttling displacement beyond a predetermined range of the bridge superstructure.

 The spherical bearing, including the above arrangements, installed between the bridging superstructure 100 and the pier or alternation 200, is exposed to cyclic loads that develop over time, causing damage And maintenance / replacement work is therefore essential.

When replacing the configuration (s) of the spherical bearing, generally, elevating means is installed in the space between the bridge overhead structure 100 and the alternating or pierced bridge 200 to lift the upper structure 100 up to a certain height. However, under a certain condition that the liftable height is restricted by the legal regulations or the environment, the stopper D1 of the lower plate D restricts movement of the projection U1 of the projection U in the throttle direction, It is costly to release. Therefore, there is a problem in that the parts replacement work must be performed by damaging the supporting concrete formed on the alternate or pier.

Therefore, in the spherical bearing having the stopper on the lower plate, it is required to disclose a configuration that enables easy release of each component under the above-mentioned constraint condition.

Precedent literature

Korean Patent No. 10-1272145 " Spherical  support"

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The present invention relates to a bearing structure for a bearing housing, which is capable of releasably attaching a stopper function stopper for restricting displacement of an upper plate in a throttle direction to both side portions of a bearing housing member, The present invention provides a spherical spherical bearing having a detachable engaging portion for enabling a spherical bearing.

As described above, according to the present invention, there is provided a bearing for a bridge having a detachable engaging portion for detachably attaching the engaging portion to both side portions of the bearing receiving member so as to facilitate prompt / The purpose of the present invention is to provide a curled bearing.

Further, according to the present invention, a pair of detachable fastening portions are integrally formed to allow the bearing plate or the receiving member to be pulled out in both directions of the throttle direction when releasing the fastening portion, so that even under certain restrictive conditions, An object of the present invention is to provide a spherical spherical bearing having a removable engaging portion for facilitating easy separation.

It is another object of the present invention to provide a spherical spherical bearing having a detachable engaging portion that is integrally formed with the engaging portion and can be relatively easily detached and attached to the bearing receiving member.

As described above, according to the present invention, there is no need to provide a structure for integrally forming the latching portion to prevent the upward displacement of the load transmitting member in the bearing receiving member. Therefore, the ease of manufacturing the accommodating member, And to provide a spherical spherical bearing having a detachable engaging portion for achieving economical efficiency.

Another object of the present invention is to provide a spherical spherical bearing capable of easily detaching and attaching the engaging portion and the receiving member by realizing the engagement of the engaging portion and the bearing receiving member by bolt fastening.

It is another object of the present invention to provide a spiral bearing for bridges that can reinforce the shear strength against lateral forces generated by inserting bolts in the first and second bolt receiving holes of the latching portion in a direction perpendicular to the throttling axis .

It is also an object of the present invention to provide a spherical spherical bearing capable of reinforcing the entire thickness of the engaging portion through a protruding surface protruding from the inner side surface of the engaging portion by a predetermined thickness in the inward direction, .

In order to achieve the above-mentioned object, the present invention can be implemented by the following embodiments.

According to an embodiment of the present invention, a spheric bearing for a bridge having a detachable locking part according to the present invention includes: a load transmitting member formed on an upper side of a spherical bearing to transmit a load generated in a bridge upper structure downward; A bearing receiving member for receiving a load transmitted from the upper side and formed with a groove for receiving the bearing plate at a central portion thereof, a bearing receiving member for transmitting a load transmitted from the load transmitting member to a lower side and receiving horizontal displacement and rotation; And a locking part detachably coupled to both side parts of the bearing receiving member to restrict displacement of the upper plate in the throttle direction.

According to another embodiment of the present invention, the load transmitting member of the spheric bearing for bridges having the detachable engaging portion according to the present invention comprises: an upper plate which is made of a steel plate having a rectangular plate as a whole and is fixed to the upper structure; And a pair of elongated protrusions protruding and protruding downward from both sides of the lower surface of the plate adjacent to both sides of the upper plate by a predetermined length, wherein the engaging portion has a planar shape of 'c' And the extension jaw is received in the housing.

According to another embodiment of the present invention, the latching portion of the bridge spherical bearing having the detachable latching portion according to the present invention is protruded outwardly so that when the bridge thrusting structure is displaced in the first throttling direction, A first latching jaw which contacts with one side surface of the extension jaw and restricts a throttling displacement beyond a predetermined range in one direction of the upper plate; And a second engagement protrusion formed at a predetermined distance from the first engaging jaw so as to protrude outward so as to come into contact with the other side surface of the extension jaw received in the engagement portion when the second throttling displacement of the bridge upper structure occurs, A second latching jaw for restricting throttling displacement beyond the range; And a connecting portion connecting the first and second stopping jaws, wherein the connecting portion is formed such that the width of the throttling direction is larger than the width of the extending jaw.

According to another embodiment of the present invention, the load transmitting member of the spherical bearing for a bridge having a detachable engaging portion according to the present invention further includes a side block installed on one side of the inner side of the extending jaw, The first and second latching jaws are formed to extend from the upper surface of the first and second latching jaws by a predetermined length and have a height smaller than the height of the first and second latching jaws, The insertion of the side block is received on the lower side of the lower surface of the load transmission member.

According to another embodiment of the present invention, the bearing receiving member of the spherical bearing for a bridge having a detachable engaging portion according to the present invention is provided with a plurality of engaging portions And a first bolt receiving hole through which the first engaging jaw is formed to penetrate the inner and outer side surfaces and to be bolted in a state matched with the first engaging groove on one side, And a second bolt receiving hole formed on the inner and outer sides of the second receiving jaw so as to be bolted in a state of matching with the second receiving groove on the other side, So that the user can view the image.

According to another embodiment of the present invention, the bearing receiving member of the spherical bearing for a bridge having a detachable engaging portion according to the present invention includes: a seating portion which is embedded in a certain height inwardly from both sides of the receiving member to form a step portion; And the protruding surface protrudes inwardly from the inner surface of the latching portion to be able to be seated in the seating portion.

According to another embodiment of the present invention, the bearing portion of the bearing spherical bearing having the detachable engaging portion according to the present invention includes a bearing surface which is an inner surface formed in a direction perpendicular to the bearing portion; And a step portion which is a step constitution to form a lower surface of the seat portion.

The present invention has the following effects with the above-described configuration.

The present invention relates to a bearing structure for a bearing housing, which is capable of releasably attaching a stopper function stopper for restricting displacement of an upper plate in a throttle direction to both side portions of a bearing housing member, .

In addition, as described above, the present invention has an effect that the fastening portion can be detachably attached to both side portions of the bearing housing member, thereby facilitating speedy and economical operation due to shortening of the working period in the bearing maintenance work.

Further, according to the present invention, a pair of detachable fastening portions are integrally formed to allow the bearing plate or the receiving member to be pulled out in both directions of the throttle direction when releasing the fastening portion, so that even under certain restrictive conditions, An effect of facilitating easy separation and installation can be obtained.

In addition, as described above, the present invention can exhibit the effect that the engagement portion can be integrally formed and can be relatively easily detached and attached to the bearing receiving member.

As described above, according to the present invention, there is no need to provide a structure for integrally forming the latching portion to prevent the upward displacement of the load transmitting member in the bearing receiving member. Therefore, the ease of manufacturing the accommodating member, And economic efficiency can be achieved.

In addition, the present invention realizes an effect that the engaging portion and the bearing receiving member are realized by the bolt fastening so that the engaging portion and the receiving member can be easily detached and attached.

In addition, the present invention has the effect of reinforcing the shear strength against the horizontal force generated by inserting bolts in the first and second bolt receiving holes of the latching portion in the direction perpendicular to the throttling axis.

Further, the entire thickness of the engaging portion can be reinforced through the protruding surface protruding from the inner surface of the engaging portion by a predetermined thickness in the inward direction, so that the corresponding force against the horizontal force can be remarkably increased.

1 is a reference view showing that a spherical bearing is installed between a superstructure for a bridge and a pier or an alternation;
2 is a perspective view of a conventional spherical bearing;
3 is a front view of a spherical bearing according to an embodiment of the present invention;
4 is an exploded perspective view of the spherical spherical bearing according to FIG. 3;
FIG. 5 is a plan view showing a state where the stopper is engaged with the load transmitting member provided in the spherical bearing for a bridge according to FIG. 3; FIG.
Figure 6 is a perspective view of the latching portion according to Figure 3;
FIG. 7 is a reference view of the load transmitting member and the engaging part shown in FIG. 3; FIG.
FIG. 8 is a perspective view of a spherical bearing according to another embodiment of the present invention; FIG.
9 is a front view of the latching portion according to Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments, but should be construed on the basis of the matters set forth in the claims. Further, the present embodiment is only provided as a reference for more fully illustrating the present invention to those skilled in the art.

Hereinafter, the spiral bearing 1 for a bridge having a detachable engagement portion according to an embodiment of the present invention will be described in detail. In the following description, the term "throttling direction" refers to the longitudinal direction of the bridge, the direction perpendicular to the throttling direction refers to a direction perpendicular to the horizontal direction and the throttling direction refers to a direction perpendicular to the throttling direction Quot; inner direction " means an opposite direction to the outward direction.

3 is a front view of a spherical bearing according to an embodiment of the present invention; 4 is an exploded perspective view of the spherical spherical bearing according to FIG. 3; FIG. 5 is a plan view showing a state where the stopper is engaged with the load transmitting member provided in the spherical bearing for a bridge according to FIG. 3; FIG. Figure 6 is a perspective view of the latching portion according to Figure 3; FIG. 7 is a reference view of the load transmission member and the engagement portion according to FIG. 3, and will be described with reference to FIGS. 3 to 7 below. FIG. 7 is a perspective view of a spiral bearing for a bridge having a detachable engagement portion according to an embodiment of the present invention See you.

3 and 4, a spheric bearing 1 having a detachable locking part according to an embodiment of the present invention is configured to restrict the movement of the load transmission member 10 installed on the upper side in the throttle direction The bridge upper structure 100 and the bridges installed between the piers or the shift 200 so that the engaging portions 70 formed on both sides of the bearing receiving member 50 can be detachably attached to the bearing receiving member 50. [ The present invention relates to a bearing capable of quickly and effectively performing maintenance by realizing an easy disengagement of the spherical bearing 1 and an effect of reducing the cost due to the easy formation of the bearing housing member 50. [

To this end, the bridge spherical bearing 1 may include a load transmitting member 10, a bearing plate 30, a bearing receiving member 50, a locking portion 70, and a coupling portion 90 .

The load transmitting member 10 is formed on the upper side of the spherical bearing 1 to transmit the load generated in the bridge upper structure 100 to the lower side of the bearing 1. For this purpose, An extension jaw 130, and a side block 150. As shown in FIG.

The upper plate 110 is preferably made of a steel plate having a generally rectangular plate shape and is fixed to an upper structure by an anchor bolt or the like. However, the shape, material, and coupling method of the upper plate 110 are not limited, It is only a thing.

The extension jaws 130 have a pair of constructions extending from both sides of the lower surface of the plate 110 adjacent to both sides of the upper plate 110 by a predetermined length along the diagonal direction. The elongated jaw 130 is inserted into the engaging part 70 to be described later and the elongated jaw 130 is inserted into the engaging part 70 And comes into contact with one side of the first or second latching jaws 710, 730. Therefore, the throttle 130 and the engaging portion 70 can restrict the throttle displacement of the upper structure 100 to a certain level or more. Therefore, the bridge upper structure 100 can be constantly displaced in the throttling direction only within a predetermined range by the extension jaws 130 and the engaging portions 70. A detailed description thereof will be given later. To this end, the extension jaw 130 may include a first through hole 130a.

The first through hole 130a is formed to penetrate both side surfaces of the extension jaw 130 to allow the insertion of the coupling means. For example, the first through hole 130a is coupled with the side block 150 to be described later in a bolt fastening manner. This will be described below. However, it should be noted that the combination of the extension jaw 130 and the side block 150 is not necessarily limited to the bolt fastening, and any structure / means may be utilized, and the scope of the present invention is not limited to the specific structure. shall.

The side block 150 is configured to engage the inner surface of the extension jaw 130 to prevent the upper plate 110 from being separated upward from the bearing housing member 50 to be described later. For example, in the side block 150, a first insertion hole 150a, which is formed so as to be embedded in the outer side from the outer side, is fastened with a coupling means such as a bolt in a state matching the first through hole 130a, The jaws 130 may be coupled with each other. However, there is no particular limitation on the coupling of the extension jaws 130 and the side blocks 150, and coupling through any configuration / means is also possible. Therefore, when the upper plate 110 receives an external force in the upward direction, the side block 150 can contact the lower surface of the latching portion 70, which will be described later, to prevent the upward movement of the latching portion 70. Specifically, ) Will be described in detail.

The bearing plate 30 receives the load from the upper structure 100 of the bridge downward and receives the horizontal displacement and rotation, and is received on one side of the bearing receiving member 50 to be described later. In addition, a sliding member such as PTFE is generally installed in a space between the upper surface of the bearing plate 30 and the load transmitting member 10. [ To this end, the bearing plate 30 includes a first plane portion 310 and a convex portion 330.

The first plane portion 310 is formed in a planar shape complementary to the lower surface of the load transmission member 10, and is configured to form an upper surface of the bearing plate 30. In addition, as described above, it is preferable that a slip material is mounted on the first plane portion 310 so as to be able to accommodate the easy throttling displacement of the load transmission member 10. [

The convex portion 330 has a hemispherical shape having a downwardly convex sectional shape on the lower surface of the bearing plate 30 and has a shape complementary to the bearing receiving groove 530 of the bearing receiving member 50 . In addition, a separate sliding member is generally provided between the convex portion 330 and the bearing receiving groove 530.

3 to 5, the bearing receiving member 50 is formed at its center with a groove for receiving the bearing plate 30 to receive a load transmitted from the upper side of the spherical bearing 1 . The bearing receiving member 50 may include a body 510, a bearing receiving groove 530, and a first receiving groove 550.

The body 510 forms a body of the bearing housing member 50, and is preferably formed of a steel plate in the form of a rectangular plate as a whole, but the shape of the body is not limited.

The bearing receiving groove 530 is formed in a semicircular shape downwardly in the central portion of the body portion 510 to receive the bearing plate 30 and the convex portion 330 of the bearing plate 30, It is preferable to form it in a shape of a circle. Further, as described above, it is preferable that a separate sliding member is provided between the bearing receiving groove 530 and the convex portion 330.

The first recessed groove 550 is formed at a predetermined depth inwardly on both sides of the body 510 for engagement with a latching part 70 to be described later. For example, the first recessed grooves 550 may be formed at both sides of the body portion 510 so as to be spaced apart from each other in the throttling direction and embedded at positions adjacent to both side ends, It is preferable that two are formed. However, the above example is for explanation only, and it may be formed at the central portion of both sides of the body portion 510, or may be formed at one position adjacent to both end portions, but there is no particular limitation thereto. The diameter of the first recessed groove 550 is preferably substantially the same as the diameter of the engaging means to be inserted. The coupling means may be, for example, a bolt, but the scope of the present invention is not limited by the specific examples.

3 to 6, the retaining portion 70 is detachably coupled to the bearing housing member 50 and receives the extension jaws 130 at the inner side thereof to adjust the displacement of the upper plate 10 in the throttling direction . Specifically, it is preferable that the engaging portion 70 is coupled to both sides of the bearing housing member 50, and the planar shape of the engaging portion 70 is formed of a letter "c". As described above, the manner in which the latching portion 70 is coupled to the bearing housing member 50 can be achieved by bolting, but the scope of the present invention is not limited by the above-described manner, The method may utilize any known coupling means / methods known in the art.

As described above, the engaging portion 70 is detachably attached to the bearing housing member 50, and the following advantages arise. For example, when replacing by damage to the load transmitting member 10, the bearing plate 30 or the bearing receiving member 50, it is generally desirable that the bridge superstructure 100 and the alternating, A lifting means such as a hydraulic jack is installed to raise the upper structure 100 up to a certain height. Then, an operation of replacing the above-described configurations (10, 30, 50) is performed. However, in some cases, a constraint condition that the bridge overhead structure 100 can not be lifted beyond a certain height may occur.

The above-described problem can be solved by utilizing the releasable latching portion 70 according to the present invention. First, after disengaging the side block 150 from the extended jaw 130, the engaging portion 70 is released from the bearing receiving member 50. Thereafter, the bearing plate 30 and the bearing housing member 50 can be pulled out in the throttling direction. Thereafter, the load transmitting member 10 is also released from the upper structure 100 by releasing the bolt coupling, I can take it out. Details of this will be explained once again.

In addition, by forming the engaging portion 70 integrally, the following advantages also occur. First, when a rectangular parallelepiped-type detachable stopper protruding in a direction perpendicular to the throttling axis is provided at both the front side or rear side two corner portions of the bearing housing member 50, after the stopper is released, the bearing plate 30 or There is a limit in which the housing member 50 can only be taken out in one direction out of both directions in the throttling direction. Therefore, there may arise a problem that it is impossible to easily release the bearing when a constraint condition that the structures (30, 50) can not be taken out in one direction. However, when the integral fastening portion 70 according to the present invention is utilized, there is an advantage that both the configurations 30 and 50 can be taken out in both directions of the throttling direction.

The engaging portion 70 according to the present invention is relatively easy to attach and detach as compared with a case where the stopper is provided at each of the front and rear four corners of the bearing receiving member 50, It is not necessary to provide a separate structure for restricting the upward movement of the load transmission member 10 by engaging with the side block 150. Therefore, it is possible to easily manufacture the accommodating member 50, There are features.

For this, the latching part 70 may include a first latching jaw 710, a second latching jaw 730, and a connecting part 750.

The first hooking jaw 710 is protruded outwardly by a predetermined length to contact with one side surface of the extended jaw 130 accommodated in the engaging portion 70 when the first throttling displacement of the bridge upper structure 100 occurs, Thereby restricting displacement of the upper plate 110 in the throttling direction beyond a certain level in one direction. The shape of the first latching jaw 710 is not limited, but is preferably formed in a rectangular parallelepiped shape. In addition, the first latching jaw 710 may include a first bolt receiving hole 710a. The first throttling direction displacement refers to a displacement in the direction from the center axis of the engaging portion 70 toward the first engaging jaw 710.

The first bolt receiving hole 710a is a through hole that passes through the inner and outer sides of the first latching jaw 710 to allow bolt insertion. After the bolt is aligned with the first engaging groove 550, And can be engaged with the bearing housing member 50. The number of the first bolt receiving holes 710a is preferably two, but one may be formed without limitation. The diameter of the bolt receiving hole 710a is preferably substantially the same as the diameter of the bolt to be inserted.

The second latching jaw 730 is spaced apart from the first latching jaw 710 by a predetermined distance in the thrust direction and protrudes outwardly for a predetermined length so that when the second throttling displacement of the upper plate 110 occurs, Is configured to contact the other side surface of the extension jaw (130) accommodated in the inside of the bridge portion (70) to limit the displacement of the bridge upper structure (100) in the throttling direction beyond a certain level in the other direction. The shape of the second latching jaw 730 is not limited, but is preferably formed in a rectangular parallelepiped shape. In addition, the second latching jaw 730 may include a second bolt receiving hole 730a. The second throttling direction displacement refers to a direction opposite to the first throttling direction displacement.

The second bolt receiving hole 730a is formed to penetrate the inner and outer sides of the second engaging jaw 730 to receive the bolt. After the bolt is aligned with the first engaging groove 550, So that it can be coupled with the member 50. The number of the second bolt receiving holes 730a is preferably two, but one may be formed without limitation. The diameter of the bolt receiving hole 730a is preferably substantially the same as the diameter of the bolt to be inserted.

Therefore, the bolts are inserted into the first and second bolt receiving holes 730a and 730b in a direction perpendicular to the throttling axis, so that not only the engagement and disengagement of the engagement portions 70 but also the reinforcement of the shear strength against the generated horizontal force The advantage of having an effect also occurs.

The connecting portion 750 connects the first and second stopping hooks 710 and 730 with each other so that the width W1 in the throttling direction is larger than the width W2 of the extending jaw 130 So as to allow displacement of the load transmission member 10 within a predetermined range in the throttling direction in a state in which the extension jaw 130 is accommodated inside the engagement step 70. [ In addition, both side end portions of the connecting portion 750 connected to the engaging jaws 710 and 730 are extended from the upper surface of the first and second engaging jaws 710 and 730 downward by a predetermined length, H1 are formed to be smaller than the height H2 of the first and second locking tabs 710, 730 (see FIG. 7). A side block 150 is inserted into a space formed below the lower surface of the connection unit 750 so that the upper surface of the side block 150 is brought into contact with the lower surface of the connection unit 750 when the upper plate 10 is moved upwardly, Thereby limiting movement.

3 to 5, the coupling portion 90 is formed on the front and rear surfaces of the receiving member 70 to fix the bearing receiving member 70 to the bridge or the shift 200, It is preferable that a total of four are formed on the both end sides of the front and rear surfaces. Further, it is preferable that the fastening portion is integrally formed with the bearing receiving member 70. The fastening portion 90 is vertically formed to receive the anchor bolt and is fixed to the bridge or the shift 200.

Hereinafter, the process of replacing the bearings installed between the support concrete and the bridge upper structure using the bridge spherical bearing 1 having the detachable engagement portion according to the present invention will be described once again.

The spherical bearing (1) installed between the support concrete and the bridge superstructure is exposed to the continuous cyclic load and defects as time passes. At this time, it is necessary to replace the bearing (1). First, in order to replace the spherical bearing 1, the hydraulic jack is operated between the supporting concrete and the upper structure 100 to lift the upper structure 100. However, when the upper structure 100 is lifted by the hydraulic jack, a problem that the hydraulic jack can not be raised beyond a predetermined level for securing safety may occur.

In such a situation, the spherical bearing 1 according to the present invention can exhibit the effect. As described above, after the side block 150 is first disengaged from the extended jaw 130, the engaging portion 70 is released from the bearing receiving member 50 by releasing the inserted bolt. Thereafter, the bearing plate 30 and the bearing housing member 50 can be pulled out in the throttling direction, and then the upper plate 10 can also be easily pulled out in the throttling direction.

In addition, as described above, by forming the engaging portion 70 integrally, the following advantages also occur. First, when each of the stoppers is provided with a rectangular parallelepiped stopper at two front and rear side edges of the bearing housing member 50, the bearing plate or the housing member 30 or 50 is moved in the throttling direction Only the one direction of the direction in which the stopper is engaged from the center of the middle bearing 1 is inevitable. Therefore, it is costly to release the bearing 1 when a constraint condition in which the structures 30, 50 can not be taken out in one direction. However, when the integral fastening portion 70 according to the present invention is used, the configurations 30 and 50 can be pulled out in both directions of the throttling direction, and can easily be released under any constraint.

When the stopper 70 according to the present invention is used, it is relatively easy to attach and detach the stopper as compared with a case where the stopper is provided at the front and rear four corners of the bearing housing member 50, It is not necessary to provide a separate structure for restricting the upward movement of the upper plate 110 by engaging with the side block 150 on one side of the upper plate 110. Therefore, it is possible to simplify the manufacturing of the housing member 50, There is a characteristic that can be done.

FIG. 8 is a perspective view of a spherical bearing according to another embodiment of the present invention; FIG. FIG. 9 is a front view of the retaining portion according to FIG. 8. Referring to FIGS. 8 and 9, a description will be made of a sphere bearing for a bridge having a releasable retaining portion according to another embodiment of the present invention.

8 and 9, a spherical bearing 1 'according to another embodiment of the present invention includes a bearing housing member 50' coupled to the engagement portion 70 'and the engagement portion 70' Only the specific configuration of a part of the bearing receiving member 50 'and the engaging part 70' will be described in detail below because the configuration other than the shape of the one part is the same as that of the spherical bearing 1 according to the above- Explain it.

The bearing housing member 50 'has the same configurations 510', 530 ', and 550' as the body portion 510, the bearing housing groove 530, and the first housing groove 550 according to the embodiment of the present invention. , And may additionally include a seating portion 570 '.

The seating portion 570 'is inclined inwardly to a certain height from both sides of the bearing receiving member 50' to which the engagement protrusion 70 'is to be coupled, thereby forming a step portion so that the engagement protrusion 70' . The seating portion 570 ', which is embedded at a certain depth inward along the throttling direction, has a predetermined height from the uppermost portion of both side surfaces of the bearing receiving member 50' to the lower side of the bearing receiving member 50 ' And is formed only on one side of the both side surfaces.

To this end, the seating portion 570 'may include a recessed surface 570a' and a stepped portion 570b '.

The recessed surface 570a 'is preferably an inner surface formed in the vertical direction of the seating portion 570' and is in surface contact with the inner surface of the projecting surface 770 'of the latching portion 70' described later. In addition, the first recessed groove 550 'is formed on the recessed surface 570a'.

The stepped portion 570b 'has a step configuration to form a lower surface of the seating portion 570', and a lower surface of the projecting surface 770 'of the engaging portion 70' to be described later can be seated.

The latching portion 70 'includes the same structures 710', 730 ', and 750' as the first and second latching jaws 710 and 730 and the connecting portion 750 according to an embodiment of the present invention , And further includes a protruding surface 770 '.

The protruding surface 770 'is protruded inwardly from the inner surface of the latching portion 70' so that one side of the latching portion 70 'can be seated on the seating portion 570' . The protruding surface 770 'is formed in a shape complementary to the seating portion 570' and is formed in the shape of a quadrangular prism extending in the throttling direction, Do.

The protruding surface 770 'protrudes inward from the uppermost portion of the engaging portion 70' at a predetermined height (formed to be a height smaller than the inner side height of the engaging portion 70 '), It is preferable to form them only.

As described above, the spherical bearing 1 'according to another embodiment of the present invention includes the seating portion 570' and the protruding surface 770 'having a shape complementary thereto, so that the inner and outer sides of the retaining portion 70' The overall thickness of the direction can be improved.

Generally, the connecting part 750 included in the latching part 70 according to the embodiment of the present invention described above is formed to have a relatively small thickness, so that there is a risk that the breakage or resistance ability is lost when a horizontal force of a predetermined level or more is generated. However, when the connecting portion 750 'according to another embodiment of the present invention is applied, an advantage that the overall force of the engaging portion 70' along the protruding surface 770 'is reinforced greatly increases the response force to the horizontal force .

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The above-described embodiments illustrate the best mode for carrying out the technical idea of the present invention, and various modifications required for specific application fields and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments.

1: spherical bearing
10: Load transfer member
110: upper plate 130:
130a: first through hole
150: Side block
150a: first penetration hole
30: Bearing plate
310: first plane portion 330: convex portion
50: Bearing housing member
510: body portion 530: bearing receiving groove
550: first recessed groove
70:
710: First stopping jaw
710a: first bolt receiving hole
730: second stop jaw
730a: second bolt receiving hole
750: Connection
90:
W1: width of connection W2: width of extension jaw
H1: height of connecting portion H2: height of first and second stopping jaws

Claims (7)

A load transmitting member formed on the upper side of the spherical bearing and transmitting a load generated in the bridge upper structure downward;
A bearing plate that transmits the load transmitted from the load transmitting member to the lower side and receives horizontal displacement and rotation;
A bearing receiving member for receiving a load transmitted from an upper side of the bearing receiving member;
And a locking portion detachably coupled to a side portion of the bearing receiving member to restrict displacement of the load transmitting member in the throttle direction,
The load transmitting member includes an upper plate, which is formed in a rectangular plate as a whole and is fixed to the upper structure; A pair of elongated protrusions extending downward from both sides of the lower surface of the upper plate adjacent to both sides of the upper plate and extending in the diagonal direction; And a side block coupled to an inner surface of the extension jaw and adapted to contact the lower surface of the latch when the upper plate receives an external force in an upward direction,
Wherein the engaging portion is formed in a planar shape with a " C " shape to accommodate the extending step in the inner space. delete The method according to claim 1,
The latching portion is protruded outward to contact the one side surface of the extension jaw received in the inside of the latching portion when the first throttling displacement of the bridge upper structure is generated to restrict the throttling displacement beyond a predetermined range in one direction of the upper plate A first latching jaw for opening and closing the first latching jaw;
And a second locking protrusion formed on the other side of the upper plate in a direction perpendicular to the first locking protrusion, the protrusion being spaced apart from the first locking protrusion by a predetermined distance and protruding outwardly, A second locking jaw for restricting throttling displacement beyond a predetermined range of the first locking jaw;
And a connecting portion interconnecting the first and second stopping jaws,
Wherein the connecting portion is formed such that the width of the throttling direction is larger than the width of the extending jaw. The method of claim 3,
Wherein the load transfer member further comprises a side block coupled with an inner surface of the extension jaw,
Both end portions connected to the first and second stopping jaws of the connection portion are formed to extend from the upper surface of the first and second stopping jaws by a predetermined length and have a height smaller than the height of the first and second stopping jaws And the insertion of the side block is received on the lower side of the lower surface of the connecting portion, thereby preventing upward displacement of the load transmitting member. 5. The method of claim 4,
The bearing housing member includes a first recessed groove formed at a predetermined depth inwardly at a position adjacent to both side end portions of the body for bolt engagement with the retaining portion,
And a first bolt receiving hole through which the first engaging jaw is formed to penetrate the inner and outer side surfaces and to be bolted in a state of matching with the first engaging groove on one side,
And a second bolt receiving hole through which the second engaging jaw is formed to penetrate the inner and outer side surfaces and to be bolted in a state matched with the second engaging groove on the other side,
Wherein the bearing housing member and the engagement portion are easily detachable and attached together so that the shear strength can be reinforced. 6. The method according to any one of claims 1 to 5,
Wherein the bearing receiving member further comprises a seating part formed at both sides of the bearing receiving member and having a height smaller than both lateral sides of the bearing receiving member and being embedded inward to form a step,
Wherein the engaging portion further comprises a protruding surface formed to have a height smaller than a height of an inner side surface of the engaging portion from an inner side surface of the engaging portion and protrude inward to be seated on the seating portion. For spherical bearings. The method according to claim 6,
Wherein the seating portion is an inner surface formed in a direction perpendicular to the seating portion; And a step portion that forms a bottom surface of the seat portion, the step portion being a stepped structure.
KR1020170085939A 2017-07-06 2017-07-06 Spherical bearing having detachable trapped part for bridge KR101853619B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200087496A (en) * 2019-01-11 2020-07-21 (주)광원아이앤디 Reinforcing structure for bridge support
KR20200116698A (en) * 2019-04-02 2020-10-13 (주)광원아이앤디 Spherical bearing for bridge
CN111979905A (en) * 2019-05-22 2020-11-24 成都市新筑路桥机械股份有限公司 Large horizontal force tension-compression support

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100986696B1 (en) * 2010-02-05 2010-10-08 (주)신성엔지니어링 Bridge bearing having a function to control longitudinal displacements of bridge by two steps
KR101272145B1 (en) * 2012-09-05 2013-06-07 삼영엠텍(주) Spherical bearing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100986696B1 (en) * 2010-02-05 2010-10-08 (주)신성엔지니어링 Bridge bearing having a function to control longitudinal displacements of bridge by two steps
KR101272145B1 (en) * 2012-09-05 2013-06-07 삼영엠텍(주) Spherical bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200087496A (en) * 2019-01-11 2020-07-21 (주)광원아이앤디 Reinforcing structure for bridge support
KR102174860B1 (en) * 2019-01-11 2020-11-05 (주)광원아이앤디 Reinforcing structure for bridge support
KR20200116698A (en) * 2019-04-02 2020-10-13 (주)광원아이앤디 Spherical bearing for bridge
KR102622008B1 (en) * 2019-04-02 2024-01-10 (주)광원아이앤디 Spherical bearing for bridge
CN111979905A (en) * 2019-05-22 2020-11-24 成都市新筑路桥机械股份有限公司 Large horizontal force tension-compression support

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