KR20090100240A - Embedded expansion joint apparatus for bridge - Google Patents

Abstract

PURPOSE: A buried expansion joint device is provided to reduce the cost for repairing and maintaining by preventing the deformation and the superannuation after the installation. CONSTITUTION: A buried expansion joint device comprises an interval(180) between slabs(170). A fixing unit(112) is equipped in the direction of the interval. The fixing unit is the hook type and upward curved. The expansion joint device is the rail structure. The both side of the rail structure is opened. An opening(114) is formed at the rail structure. The opening is formed at the one side of the width direction along the longitudinal direction. The expansion joint device includes a pair of rigid frame(110), a draining board(120), and a drainage guide board(130).

Description

Replaceable expansion joint apparatus for bridges

The present invention relates to a replaceable retractable expansion joint device for bridges, and more particularly, an expansion member having a drainage function can be well protected from deformation or aging caused by daylight, resulting from relatively frequent replacement or maintenance work. It can reduce the difficulty of maintenance and repair, and the management cost, and the structure of the fixed frame and elastic member embedded in the slab of the bridge is relatively simple to facilitate the initial installation and replacement of the bridge. A replaceable retractable expansion joint of a bridge that allows to proceed.

On the other hand, the present application is a divided application that uses Korean Patent Application No. 2008-102259 as a parent application.

In general, the expansion joint of the bridge is installed between the slab (slab) of the bridge is a device for compensating the expansion of the slab. That is, a conventional bridge is installed by connecting a plurality of slabs, where the bridge is expanded and contracted in accordance with the temperature change and load, the slab constituting the bridge has a clearance between the appropriate length has a spacing that means an appropriate interval. In addition, the expansion joint is installed in the clearance to prevent damage of the slab as well as to facilitate the communication of the vehicle.

In addition, the expansion joint device prevents the vibration generated by the vehicle traveling over the bridge from being directly transmitted from one slab to the slabs on both sides thereof, and at the same time, it prevents the leakage phenomenon occurring in the flow between the bridges and the bridge device or reinforced concrete. It has a function to prevent the beam from corroding.

Korean Patent Publication No. 10-2005-88478 discloses a conventional replaceable expansion joint leak prevention device. As shown in Figure 1, the replacement expansion joint leak prevention device is installed between the upper slab (8) and the slab 8 (spacing) of the bridge, the fixed support 10 and the fixed base 20 and the elastic member It consists of (22). The fixing base 10 is formed in the form of the fixing groove (10a), it is embedded in the state that exposes the fixing groove (10a) to the side of each of the slab (8). In addition, the fixing stand 20 is fitted into the fixing groove 10a of each fixing stand 10, and both ends of the elastic member 22 are coupled to each fixing stand 20, so that the elastic member 22 is slab. It is installed in a "U" shape at the clearance between the 8 and the slab 8 to prevent leakage.

In FIG. 1, reference numeral 15 denotes reinforcing steel bars embedded in the slab, and 30 is a steel plate installed on an upper part of the clearance gap (hereinafter referred to as "flow clearance" in the following description) between the slab 8 and the slab 8. Indicates a cover.

However, in the conventional expansion joint leakage preventing device, since the expansion member is made of a rubber material, in general, the expansion member is continuously exposed to daylight due to the characteristics of the bridge that is constructed outside, thus the expansion member is It may cause degradation of durability due to aging at a relatively early time after initial installation.

In addition, since the aged elastic member needs to be replaced with a new one to perform its normal function, the conventional expansion joint leakage preventing device has a relatively quick replacement cycle of the elastic member, and thus the administrator should pay more attention to maintenance. At the same time, the hassle and cost of frequent replacements is incurred. In addition, as a means for minimizing the radiant heat of daylight to the elastic member, a steel plate covering the upper portion of the stem is installed at each upper portion of the slab, which is used for the maintenance of the bridge including the expansion joint leakage prevention device as well. In addition to increasing costs, it also increases the budget of the institution or organization responsible for bridge management.

For this reason, there is a need to provide an expansion and contraction apparatus including the same, at the same time as providing the elastic member which does not cause rapid deformation and aging due to sunlight after installation in the bridge's clearance.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention can be well prevented deformation and aging due to sunlight in the state where the elastic member is installed on the bridge, frequent replacement or maintenance work after installation on the bridge It is to provide a replaceable retractable expansion joint of a bridge that does not need it and, accordingly, reduces the cost of maintenance.

Another object of the present invention is that the expansion and contraction member of the expansion joint device is formed in a form that is well prevented deformation and aging due to sunlight, so that the steel plate cover of the upper end of the oil can be installed only in the minimum necessary place of the total oil, In order to reduce the cost of maintenance, and to reduce the portion of the bridge management agencies or organizations responsible for the management of the bridge to provide a replaceable buried expansion joint of the bridge.

In order to achieve the above object, the replaceable buried expansion joint of the bridge according to the present invention is a replaceable buried expansion joint of the bridge is installed in the gap between the space between the different slab (slab), both sides of the longitudinal direction The rail structure is formed in the open and continuous in the longitudinal direction on one side in the width direction, the rail structure is provided with a hook-like fixing portion is bent upward in the direction of the flow gap, the symmetrical with each other on the opposite sides of the different slab It consists of a pair of fixed frames each embedded in the form of a "U" shaped cross-section is provided with a hook-shaped fastening portion bent downward in the outward direction at both ends in the width direction, continuous along the longitudinal direction on both sides in the width direction While being formed as the insertion portion of the "U" shaped cross-section located on the outside of the opening is provided, the fastening portion The drainage plate which is suspended and supported by the fixing part and is disposed in parallel with the fixing frame and is installed in the flow path, and the lower part is supported by being inserted into the insertion part of the drainage plate, and the upper part is inside the fixing frame through the opening. It characterized in that it comprises a drainage guide plate inserted in.

In addition, the drainage plate or the drainage induction plate may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and molded plastic (engineering plastics). .

By the replaceable buried expansion joint device of the bridge according to the present invention, since deformation and aging due to sunlight can be well prevented while the expansion member is installed on the bridge, frequent replacement or maintenance work is required after the expansion member is installed on the bridge. Since the maintenance of the entire expansion joint device is relatively easy, the cost required for the maintenance can be reduced.

In addition, since the elastic member is a form that can be well prevented deformation and aging due to sunlight as described above, the steel plate cover of the upper portion of the ganese can be installed only in the minimum necessary place of the entire gantry to reduce the cost required for the maintenance of the bridge At the same time, it is possible to reduce the portion allocated to the management of the bridge by the organization or organization responsible for the management of the bridge. Furthermore, not only unnecessary waste of budgets can be reduced by the national or local organizations in charge of bridge maintenance, but also the other savings can be used for other parts, thereby contributing to more efficient budget distribution.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

3 is a cross-sectional view showing a state in which a replaceable buried expansion joint device of the bridge is installed according to an embodiment of the present invention. Figure 4 is a perspective view showing the main part of the replaceable buried expansion joint of the bridge according to an embodiment of the present invention.

As shown, the replaceable buried expansion joint of the bridge according to an embodiment of the present invention is installed in the clearance 180 which is the space between the different slab (170) of the bridge, the fixed frame 110 and It is formed including a drain plate (120). In this case, the fixing frame 110 may be continuously installed, and the drainage plate may be formed in a continuous form to be installed without a seamless connection.

The fixed frame 110 is a pair of configurations formed in the same shape, the configuration will be described based on one fixed frame (110).

The fixing frame 110 is formed in a rail shape in which openings 114 continuously formed in the longitudinal direction are formed on one surface in the width direction and both sides in the longitudinal direction are open. Here, as shown in this embodiment, a portion of one side in the width direction of the fixing frame 110 is opened to form the opening 114, and at the same time, the closed surfaces on the upper and lower openings 114 are flanges for fixing with the formwork. It may be a form forming the (111, 112), the present invention is not limited to this, the entire width of one surface in the width direction of the fixed frame 110 may be opened to form an opening.

In addition, as the fixing frame 112 having a hook shape bent upward in the fixing frame 110, in the present embodiment, as described above, the width of the opening 114 of the fixing frame 110 is formed. Of the one surface in the direction, the closed surface formed on the lower side of the opening 114 to form the flange 112 is an example of the form of the fixing portion 112, the present invention is not limited to this, fixed frame ( Inner and outer of the 110 may be a separate fixing portion is formed.

The pair of fixed frames 110 are symmetrical to each other on the opposite side of the different slab 170 is installed buried each.

The drainage plate 120 has a structure of a “U” -shaped cross section in which a hook-shaped fastening part 121 is bent downward in an outward direction at both ends in the width direction, and the fastening part 121 of the fixing frame 110 is formed. As a use that is supported by the fixing part 112, the drainage plate 120 is disposed in parallel with the fixing frame 110 while supporting both ends of the width direction in a pair of fixing frames 110 which are symmetrical to each other. Floating in the clearance 180 in a state is installed. In addition, the drain plate 120 is formed of a metal material, for example, the drain plate 120 may be formed by bending the iron plate in a "U" shape.

In addition, the drain plate 120 may be a resin molding in the form of a “U” shaped cross section and having a hook-shaped fastening portion bent downward in the outward direction at both ends in the width direction, wherein the resin is polyvinyl chloride. chloride: PVC), polyethylene (PE), and engineering plastics.

In addition, the drainage plate 120 is slid along the longitudinal direction of the fixing frame 110 while supporting the fastening portion 121 on the fixing portion 112 of the fixing frame 110 in the lateral direction of the oil passage 180. It may be inserted and installed in the clearance 180, in a different manner is inserted from the top of the clearance 180, while holding the fastening portion 121 to the hanging jaw 112 of the fixing frame 110 while supporting the clearance ( 180) may be installed.

And, the drainage plate 120 is provided with the insertion portion 122 of the "U" shape continuously formed in the longitudinal direction on both sides of the width direction, while the drainage plate 120 is floated on the oil gap 180 is installed As a reference, the insertion part 122 is located outside the opening 114 of the fixed frame 110. Here, the insertion portion 122 of the drainage plate 120 serves to insert and support the lower end of the drainage guide plate 130, that is, the drainage guide plate 130 is in a direction opposite to the upper and lower sides with respect to the center part. Consisting of the form, the upper portion of the drain guide plate 130 is inserted into the inside of the fixed frame 110 through the opening 114 is supported on the inner periphery of the opening 114, the drain guide plate 130 The lower part of) is inserted into and supported by the insertion part 122 of the drainage plate 120. The drain guide plate 130 serves to prevent the water drained from the upper surface of the slab 170 to the oil gap 180 to be introduced into the fixing frame 110 to the drain plate 120 at the same time.

In addition, the other side of the fixing frame 110 in the width direction, that is, the nut rail 113 is formed on the other surface located opposite the opening of the fixing frame 110. The nut rail 113 is continuously formed along the longitudinal direction of the fixed frame 110, and is formed in a form in which both sides of the longitudinal direction are opened. Accordingly, while the plurality of nuts are inserted in the sliding manner through the open side of the nut rail 113 in the longitudinal direction, the inserted nut is movable in the sliding manner along the nut rail 113, the position can be adjusted. The bolt 140 is screwed to the nut, the bolt 140 is intended to be fixed to the reinforcement 160 of the slab 170. Therefore, since the bolt 140 is slid in conjunction with the sliding movement of the nut, when welding the reinforcement 160 and the bolt 140, the position of the bolt 140 is freely adjusted while interfering with the reinforcing bars or other components. Welding can be performed at this minimized position.

Then, the steel plate cover 150 is fixed to the bolt on the upper surface of the slab 170 so that the upper portion of the oil gap 180 is covered from the outside.

According to the above, deformation and aging due to sunlight in the state in which the drain plate 120 is installed on the bridge due to the characteristics of the metal material can be well prevented. This does not require frequent replacement or maintenance work after the drainage plate 120 is installed on the bridge, resulting in a relatively easy maintenance of the entire expansion joint device, and at the same time reducing the cost of maintenance.

In addition, since the drain plate 120 is a form that can be well prevented deformation and aging due to sunlight as described above, the steel plate cover 150 of the upper portion of the oil gap 180 can be installed only at the minimum necessary place of the whole oil gap 180. This can reduce the cost of bridge maintenance.

Next, with reference to Figure 5 will be described a replaceable buried expansion joint device of the bridge according to another embodiment of the present invention.

Replaceable buried expansion joint of the bridge according to the embodiment of Figure 5 is formed including a fixed frame 210 and the drainage plate 220, replaceable buried expansion joint of the bridge according to the embodiment of Figures 3 and 4 Detailed description of the same or similar parts as in the present embodiment will be omitted.

The replaceable retractable expansion joint of the bridge according to the present embodiment is installed in the clearance 280 which is a space between the different slabs 270.

The fixing frame 210 is formed in a rail shape in which openings 212 continuously formed along the longitudinal direction are formed on one surface of the width direction and both sides of the longitudinal direction are open. Then, the fixing part 213 is bent in the upper direction from the upper end of the opening 212 in the inward direction of the fixing frame 210 to form a hook. And, the fixed frame 210 is composed of a pair, such a pair of fixed frame 210 is installed in each of the symmetrical to each other on the opposite side of the different slab 270 is embedded.

The drainage plate 220 is hook-type fastening portion 221 of the hook-like fastening portion 221 to be supported by the fixing portion 213 of the fixing frame 210 is bent inward from each end in the width direction, respectively, such a drainage plate 220 is " U "shaped cross section. Accordingly, the drainage plate 220 is fitted to the fastening portion 221 of the downward hook-shaped fastening portion 221 of the fixing frame 210 through the open side in the longitudinal direction of the fixing frame 210. While being coupled in a sliding manner, so that the drainage plate 220 is floated and installed in the oil gap 280 while being disposed in a direction parallel to the longitudinal direction of the fixed frame 210.

In addition, the drain plate 220 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE, PE), and engineering plastics.

Reference numeral 211 denotes a flange for fixing to the formwork of the fixed frame, 250 is a steel cover, 260 is a rebar, 240 is a bolt, 213 is a nut rail.

The operation of the replaceable buried expansion joint device of the bridge according to the present embodiment configured as described above is similar to the operation of the replaceable buried expansion joint device of the bridge according to the embodiment of Figs. Detailed description thereof is omitted in the examples.

Next, with reference to Figure 6 will be described for a replaceable buried expansion joint device of the bridge according to an embodiment of the present invention.

Replaceable buried expansion joint device of the bridge according to the embodiment of Figure 6 is formed including a fixed frame 310 and the drainage plate 320, replaceable buried expansion joint device of the bridge according to the embodiment of Figures 3 and 4 Detailed description of the same or similar parts in the present embodiment will be omitted.

Replaceable buried expansion joint device of the bridge according to the present embodiment is installed in the flow path 380 which is the space between the different slabs 370.

The fixing frame 310 is formed in the shape of a rail in which both sides of the longitudinal direction are open at the same time an opening 313 which is continuously formed in the longitudinal direction is formed on one surface of the width direction. On the inner surface opposite to the opening 313 of the fixing frame 310, a hook-shaped fixing portion 312 bent upwards is formed. And, the fixing frame 310 is composed of a pair, such a pair of fixing frames 310 are symmetrical with each other on opposite sides of the different slabs 370 are buried in each installation.

The drain plate 320 is hook-type fastening portion 321 of the hook-type fastening to be supported by the fixing portion 312 of the fixing frame 310 is bent in an outward direction from both ends in the width direction, this drain plate 320 is " U "shaped cross section. Accordingly, the drainage plate 320 is fitted to the fastening portion 312 of the downward hook-type fastening portion 321 of the fixing frame 310 through the open side in the longitudinal direction of the fixing frame 310. While being coupled in a sliding manner, so that the drainage plate 320 is floated in the flow path 380 while being disposed in a direction parallel to the longitudinal direction of the fixed frame 310.

The drain plate 320 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics.

Reference numeral 311 denotes a flange for fixing to the formwork of the fixed frame 310, 350 is a steel plate, 360 is a rebar, 340 is a bolt, 314 is a nut rail.

The operation of the replaceable buried expansion joint of the bridge according to the present embodiment configured as described above is similar to the operation of the replaceable buried expansion joint of the bridge according to the embodiment of Figs. Detailed description thereof will be omitted in the embodiment.

Next, with reference to Figure 7 will be described a replaceable buried expansion joint of the bridge according to another embodiment of the present invention.

Replaceable buried expansion joint of the bridge according to the embodiment of Figure 7 is formed including a fixed frame 110 and the drain plate (420). The replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is formed in the structure of the replaceable buried expansion joint device and the drain plate 420 of the bridge according to the embodiment of FIG. Therefore, hereinafter the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention will be described with respect to the drain plate 420, and the replaceable buried expansion joint device of the bridge according to the embodiment of Figures 3 and 4 Detailed description of the same or similar parts will be omitted in this embodiment.

The drainage plate 420 is formed in a shape including a fixing part 421, a drain induction part 422 and a drain part 423, wherein the fixing part 421, the drain induction part 422 and the drain part 423 It is made of metal. For example, the drain plate 420 may be formed by bending a single iron plate into a shape having a fixing part 421, a drain induction part 422, and a drain part 423.

The fixing part 421 is formed in a shape in which the width in the up and down directions is greater than the height from the inner lower surface of the fixing frame 110 to the upper portion of the opening 114, and both ends in the width direction of the drain plate 420. Consists of a pair which is formed continuously along the longitudinal direction. That is, the pair of fixing parts 421 are inserted into the inside of the pair of fixing frames 110, respectively, and one surface thereof is supported by the inner circumference of the opening 414 to prevent separation from the fixing frame 410. do.

The drain induction part 422 is bent downward from the upper end of the fixing part 421 is exposed to the flow path 480 through the opening 114 of the fixing frame 410. The drain induction part 422 prevents water drained from the upper surface of the slab 470 from flowing into the fixing frame 410 and leads to the drain part 423.

The drain portion 423 has a “U” shape in which both ends in the width direction are connected to lower ends of the drain guide portion 422 formed at the pair of drain plates 420, respectively.

Accordingly, the drainage plate 420 is the fixed portion 421 is inserted into the inside of the fixing frame 110 is supported on the inner periphery of the opening 114, the drain portion 423 is floated on the oil gap 180 The drainage plate 420 is disposed in parallel with the longitudinal direction of the fixing frame 410 while slidingly coupling the fixing part 421 to the inside of the fixing frame 410 in the side direction of the oil passage 180. Installed in a state.

The drain plate 420 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics.

Reference numerals 411 and 412 denote the upper flange and the lower flange for fixing the formwork of the fixing frame 410, respectively, 413 is a nut rail, 440 is a bolt, 450 is a steel plate cover, 460 is a rebar .

The operation of the replaceable buried expansion joint of the bridge according to the present embodiment configured as described above is similar to the operation of the replaceable buried expansion joint of the bridge according to the embodiment of FIG. 3 and FIG. 4 described above.

That is, in the state where the drain plate 420 is installed on the bridge due to the characteristics of the metal material, deformation and aging due to sunlight may be well prevented. This does not require frequent replacement or maintenance work after the drain plate 420 is installed on the bridge, resulting in relatively easy maintenance of the entire expansion joint device and at the same time reducing the cost of maintenance.

In addition, since the drain plate 420 is a form that can be well prevented deformation and aging due to sunlight as described above, the steel plate cover 450 of the upper portion of the oil gap 480 can be installed only at the minimum necessary place of the whole oil gap 480. This can reduce the cost of bridge maintenance.

Next, with reference to Figure 8 describes a replaceable buried expansion joint of the bridge according to another embodiment of the present invention.

Replaceable buried expansion joint device of the bridge according to the embodiment of Figure 8 is formed including a fixed frame 510 and the drain plate 520, replaceable buried expansion joint device of the bridge according to the embodiment of Figures 3 and 4 Detailed description of the same or similar parts as in the present embodiment will be omitted.

The fixing frame 510 is formed in a rail shape in which openings 513 continuously formed in the longitudinal direction are formed on one surface of the width direction and both sides of the longitudinal direction are open. In addition, a pair of rails 512 formed in a continuous shape in the longitudinal direction in the fixed frame 510 are provided in a state in which slots are formed between each other. The fixed frame 510 is made up of a pair of symmetrical to each other on the opposite side of the different slab 570 is installed buried each.

The drain plate 520 has a shape of a “U” cross section, and both sides of the drain plate 520 are inserted in a sliding manner along a slot between the pair of rail portions 512. Here, support parts 521 formed at a width greater than the width of the slot are provided at both ends of the drain plate 520 in the width direction. In this embodiment, the support part 521 is a straight structure bent in the horizontal direction from both ends in the width direction of the drain plate. Accordingly, the drain plate 520 inserts both sides of the width direction into the slot between the pair of rail portions 512 through the opening 513 in the longitudinal direction of the fixing frame 510, and at the same time, the support portion 521. It is coupled in a sliding manner while supporting the pair of rails 512 upper surface. Therefore, the drain plate 520 is floated and installed in the flow path 580 while being disposed in a direction parallel to the longitudinal direction of the fixed frame 510.

The drain plate 520 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics.

Reference numeral 511 denotes a flange for fixing the rail frame 512 to the main body of the fixed frame 510 and at the same time the fixed frame 510 to the formwork, 513 is a nut rail, 540 is Bolt, 550 is a steel plate, 560 is a reinforcing bar.

The operation of the replaceable buried expansion joint device of the bridge according to the present embodiment configured as described above is similar to the operation of the replaceable buried expansion joint device of the bridge according to the embodiment of Figs. Detailed description thereof is omitted in the examples.

Next, with reference to Figure 9 will be described for the replaceable buried expansion joint of the bridge according to an embodiment of the present invention.

The replaceable buried expansion joint device of the bridge according to the embodiment of Figure 9 is formed including a fixed frame 610 and the drain plate 620, the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention The replaceable buried expansion joint of the bridge according to the embodiment of FIG. 8 described above and the support 621 of the drainage plate are formed differently. Therefore, hereinafter the replaceable buried expansion joint of the bridge according to the present embodiment will be described centering on the support 621 of the drain plate 520, the same as the replaceable buried expansion joint of the bridge according to the embodiment of FIG. Or, similar parts will be omitted in the present embodiment.

The support part 621 is formed by rolling both ends of the drain plate 620 in a width direction. Accordingly, the drain plate 620 inserts both sides of the width direction through the lengthwise open side of the fixing frame 610 into the slot of the rail part 612, and simultaneously supports the pair of supporting portions 621 of the drain plate 620. The rail plate 612 is coupled in a sliding manner while supporting the upper surface, and thus the drain plate 620 is installed in the gap 680 while being disposed in a direction parallel to the longitudinal direction of the fixed frame 610.

The operation of the replaceable buried expansion joint of the bridge according to the present embodiment configured as described above is similar to that of the replaceable buried expansion joint of the bridge according to the embodiment of FIG. Detailed description thereof will be omitted.

Next, with reference to Figure 10 describes a replaceable retractable expansion joint device of the bridge according to an embodiment of the present invention.

Replaceable buried expansion joint device of the bridge according to the embodiment of Figure 10 is formed including a fixed frame 710 and the drainage plate 720, replaceable buried expansion joint device of the bridge according to the embodiment of Figures 3 and 4 Detailed description of the same or similar parts as in the present embodiment will be omitted.

The fixed frame 710 is formed in a cylindrical structure having both sides in the longitudinal direction open and at the same time having an opening 711 of a continuous shape in the longitudinal direction. The fixed frame 710 is composed of a pair, a pair of fixed frame 710 is installed in a buried state symmetrical to each other on the opposite side of the different slab 770. In other words, the pair of fixed frames 710 are positioned in the state in which the opening 711 is located toward the clearance 780, and are installed in the buried state on opposite sides of the different slabs 770.

The drain plate 720 is formed in the form of a "U" shaped cross-section having circular guides 721 at both ends in the width direction. Here, the circular guide portion 721 is inserted in a sliding manner through the open side in the longitudinal direction of the cylindrical fixed frame 710 and supported at the inside of the cylindrical fixed frame 710, accordingly the drain plate 720 is Both ends in the width direction are supported by a pair of fixed frames 710, respectively, and are floated and installed in the flow path 180. In addition, the drain plate 720 is formed of a metal material, the circular guide portion 721 of the present embodiment is formed by rolling both ends of the drain plate 720 in the width direction.

In addition, the drain plate 720 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE, PE), and engineering plastics.

Reference numeral 740 denotes a bolt and 760 denotes a rebar.

The operation of the replaceable buried expansion joint device of the bridge according to the present embodiment configured as described above is similar to the operation of the replaceable buried expansion joint device of the bridge according to the embodiment of Figs. Detailed description thereof is omitted in the examples.

Next, with reference to Figure 11 will be described for the replaceable buried expansion joint device of the bridge according to an embodiment of the present invention.

The replaceable buried expansion joint device of the bridge according to the embodiment of Figure 11 is formed including a fixed frame 810 and the drain plate 820, the replaceable buried expansion joint device of the bridge according to the embodiment before the description 10. The structure of the replaceable buried expansion joint and drain plate 820 of the bridge according to the embodiment of 10 is different, and therefore, the following description will focus on the drain plate 820 and replace the bridge according to the embodiment of FIG. Detailed description of the same or similar parts as possible with the buried expansion joint is omitted in this embodiment.

The drain plate 820 is formed in a "U" shape is formed in each of the circular guide portion at both ends of the width direction, the circular guide portion is inserted into the reinforcement material 822 of the metal or synthetic resin material inside the circular pipe 821 It is formed in the shape, while the circular guide portion is supported by being inserted in the sliding manner through the open side in the longitudinal direction of the cylindrical fixing frame 810 is installed floating on the clearance 180.

Reference numeral 811 denotes an opening of the fixed frame 810, 840 is a bolt, 850 is a steel plate, 860 is a reinforcing bar.

Next, with reference to Figures 12 to 14 will be described for the replaceable buried expansion joint of the bridge according to an embodiment of the present invention.

12 is a perspective view schematically showing the external appearance of the slab in which the replaceable buried expansion joint of the bridge according to another embodiment of the present invention is installed. FIG. 13 is a cross-sectional view illustrating a state in which a fixing frame is embedded in the slab according to FIG. 12. 14 is a cross-sectional view showing a state in which the drain plate is installed in the fixing frame of the slab according to FIG.

12 and 13, the bridge is formed in such a way that the upper surface of the slab 970 is inclined downward from the center to the left and right directions based on the width direction, where the slope of the upper surface of the slab 970 is slightly different Will be shown.

Replaceable buried expansion joint of the bridge according to the present embodiment is an example that is applied to the bridge with a relatively large slope of the upper surface of the slab 970.

Replaceable buried expansion joint device of the bridge according to the present embodiment is formed including a fixed frame 910, the main drain plate (921, 922) and the auxiliary drain plate (930).

The fixing frame 910 is formed in a rail shape in which both sides of the longitudinal direction is opened and an opening 911 is formed on one surface of the width direction and is continuous in the longitudinal direction. Installed in a landfill state. Here, the fixed frame 910 is made of a pair of buried symmetrical symmetrical to the opposite sides of the different slab 970 with the center 980 is centered.

The main drain plates 921 and 922 have a shape of a “U” cross section, and both ends of the main drain plates 921 and 922 are slidably coupled to the inside of the fixed frame 910. In other words, one main drainage plate 921 is inserted from the left side of the fixed frame 910 based on the width direction of the slab 970, and the other main drainage plate 922 is inserted from the right side of the fixed frame 910. As a result, the pair of main drain plates 921 and 922 are respectively installed on the left and right sides of the slab 970 based on the width center of the slab 970.

The auxiliary drainage plate 930 is formed in the form of a "U" shaped cross-section both ends of the width direction is coupled to the inside of the fixed frame 910 in a sliding manner, the pair of main drainage plates 921,922 adjacent to the The slab 970 is installed in a state in which it is positioned above the main drain plates 921 and 922 in the center of the width direction.

The main drainage plates 921 and 922 and the auxiliary drainage plates 930 are formed by bending metal plates, or molded products of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics. It may be formed as.

According to the above, based on the width direction of the slab 970, water drained from the center of the slab 970 preferentially flows into the auxiliary drainage plate 930, the water introduced through the auxiliary drainage plate 930 is the main Water is introduced into the drain plates 921 and 922 to be drained. In other words, based on the width direction of the slab 970, the spaced apart portion between the two main drain plates 921,922 formed in the center of the slab 970 is blocked by the auxiliary drain plate 930, and thus the center of the slab 970 The water drained from the water is prevented from leaking through the separation portion between the main drain plate (921,922).

Although not shown, the pair of main drainage plates 921 and 922 have one main drainage plate 921 relatively longer than the other main drainage plate 922 and have a relatively long main drainage plate 921. ) Is extended to the central portion or more based on the longitudinal direction of the fixing frame 910 may be a form in which the extended end is laminated on one end of the other main drain plate 922. In this configuration, the auxiliary drainage plate 930 can be omitted, and the leakage phenomenon that may occur at a portion where the two main drainage plates 921 and 922 meet can be prevented at the source.

Next, with reference to Figs. 15 and 16, a replaceable retractable expansion joint of another bridge according to another embodiment of the present invention will be described.

15 is a cross-sectional view illustrating a state in which a fixed frame is embedded in a slab according to another embodiment of the present invention. 16 is a cross-sectional view showing a state in which the drain plate is installed in the fixing frame of the slab according to FIG.

The slab of the bridge according to the present embodiment has a shape opposite to that of the slab 970 of the bridge according to the embodiment of FIGS. 12 to 14, that is, the slab 1070 of the present embodiment has a shape of an upper surface thereof based on the width direction. It is formed to be inclined downward from the left and right sides toward the center, respectively.

Replaceable buried expansion joint device of the bridge according to the present embodiment is formed to include a fixed frame 1010, the main drain plate (1021, 1022) and the auxiliary drain plate (1030).

The fixing frame 1010 has a rail shape in which both sides of the longitudinal direction are opened and an opening 1011 is formed on one surface of the width direction and is continuous in the longitudinal direction. Installed in a landfill state. Here, the fixed frame 1010 is made of a pair of gaps 1080 are symmetrical to each other on the opposite sides of the different slab 1070 to the center.

The main drain plates 1021 and 1022 have a shape of a “U” shaped cross section, and both ends of the main drain plates 1021 and 1022 are slidably coupled to the inside of the fixed frame 1010. In other words, one main drain plate 1021 is inserted from the left side of the fixed frame 1010 based on the width direction of the slab 1070, and the other main drain plate 1022 is inserted from the right side of the fixed frame 1010. As a result, the pair of main drain plates 1021 and 1022 are installed at the left and right sides of the slab 1070 in the width direction center.

The auxiliary drainage plate 1030 is formed in the form of a "U" -shaped cross-section both ends of the width direction is coupled to the inside of the fixed frame 1010 in a sliding manner, the pair of main drainage plates (1021, 1022) are adjacent The slab 1070 is installed in the state in the lower side of the main drain plate (1021, 1022) in the center of the width direction.

In addition, the main drain plates 1021 and 1022 and the auxiliary drain plates 1030 are formed by bending a metal plate, or any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics (engineering plastics). It may be formed into a molding.

According to the above, water drained from the upper surface of the slab 1070 to the flow path is introduced into the main drain plates 1021 and 1022 and guided toward the center of the slab 1070 in the width direction, the two main drain plates 1021 and 1022 ) Are adjacent in the center of the slab 1070 in the width direction relative to each other, so that the water induced along the main drain plates 1021 and 1022 is spaced apart from the two main drain plates 1021 and 1022. It is introduced into the auxiliary drainage plate 1030 through the bottom. In addition, the auxiliary drainage plate 1030 includes a drain pipe 1031, through which the water is guided and drained through the drain pipe 1031.

Next, with reference to Figs. 17 to 19, a replaceable retractable expansion joint of another bridge in another embodiment of the present invention will be described.

17 is a cross-sectional view illustrating a drain plate in the replaceable buried expansion joint of the bridge according to another embodiment of the present invention. 18 is a perspective view illustrating a drain plate according to the embodiment of FIG. 17. 19 is a cross-sectional view showing an installation state of the bridge of the drain plate according to the embodiment of FIG. 17.

The replaceable buried expansion joint device of the bridge according to the present embodiment includes a fixing frame 1110 and a drain plate 1120, where the fixing frame 1110 is fixed according to the embodiment of FIGS. 3 and 4 described above. The same shape as that of the frame 1110, and thus, the detailed description of the fixed frame 1110 is omitted in this embodiment, and the drain plate 1120 corresponding to the features of the embodiment will be described.

The drainage plate 1120 has a shape of a “U” -shaped cross section, and fixing portions are formed at both ends in the width direction, and the fixing portion has the same structure as the drainage plate according to the embodiment of FIG. 7 described above. In other words, the fixing portion of the drainage plate 1120 is formed in a shape including a guide piece 1122a, a primary bending piece 1122b, and a secondary bending piece 1122c, and the drainage plate 1120 is formed by the fixing part. It is supported by a pair of fixed frame 1110, respectively. In addition, the drain plate 1120 is formed in a shape in which both ends are bent upwards from the center with respect to the longitudinal direction, and has a drain pipe 1121 at the center. Here, the drain plate 1120 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics.

Reference numeral 1170 denotes a slab, 1180 is a clearance, 1113 is a nut rail, 1160 is a rebar, 1140 is a bolt, 1114 is an opening of the fixing frame 1110, 1111 and 1112 is fixed to the formwork The upper flange and the lower flange for the purpose of illustration, the description will be referred to the expansion joint according to the embodiment of FIG.

In such a manner that the configuration is drained through the center of the drain plate 1120, even if the gradient of the fixed frame is very small and installed in a substantially horizontal state, the water flowing into the drain plate 1120 through the inclined surfaces on both sides of the drain plate 1120. While remaining in the center of the drain plate 1120 may be drained through the drain pipe 1121. In other words, the water guided to the drain plate 1120 is prevented from being drained while being guided to both the left and right sides of the drain plate 1120.

What has been described above is only one embodiment for implementing a replaceable buried expansion joint device of the bridge according to the present invention, the present invention is not limited to the above-described embodiment, which is claimed in the utility model registration claims below As will be apparent to those skilled in the art without departing from the gist of the present invention, the technical spirit of the present invention may be changed to the extent that various modifications can be made.

1 is a cross-sectional view showing a state in which a conventional buried expansion joint is installed on the bridge

Figure 2 is a perspective view showing a conventional buried expansion joint device

3 is a cross-sectional view showing a state in which the replaceable buried expansion joint of the bridge is installed according to an embodiment of the present invention

Figure 4 is a perspective view showing the main portion of the replaceable buried expansion joint of the bridge according to an embodiment of the present invention

5 is a cross-sectional view showing a state in which the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is installed

6 is a cross-sectional view showing a state in which the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is installed

7 is a cross-sectional view showing a state in which the replaceable buried expansion joint of the bridge according to another embodiment of the present invention is installed

8 is a cross-sectional view showing a state in which the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is installed

9 is a cross-sectional view showing a state in which the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is installed

10 is a cross-sectional view showing a state in which the replaceable buried expansion joint of the bridge according to another embodiment of the present invention is installed

11 is a cross-sectional view showing a state in which the replaceable buried expansion joint of the bridge according to another embodiment of the present invention is installed

12 is a perspective view schematically showing the external appearance of the slab in which the replaceable buried expansion joint device of the bridge according to another embodiment of the present invention is installed;

13 is a perspective view illustrating a state in which a fixing frame is embedded in the slab according to FIG. 12.

14 is a cross-sectional view showing a state in which the drain plate is installed in the fixing frame of the slab according to FIG.

15 is a perspective view illustrating a state in which a fixing frame is embedded in a slab according to another embodiment of the present invention.

16 is a cross-sectional view showing a state in which the drain plate is installed in the fixing frame of the slab according to FIG.

17 is a cross-sectional view illustrating a drain plate in the replaceable buried expansion joint of the bridge according to another embodiment of the present invention.

18 is a perspective view illustrating a drain plate according to the embodiment of FIG. 17.

19 is a cross-sectional view showing an installation state of the bridge of the drain plate according to the embodiment of FIG.

Explanation of symbols on the main parts of the drawings

110: fixed frame 111: upper flange

112: lower flange 113: nut rail

114: opening 120: drain plate

121: fastening portion 122: insertion portion

130: drainage guide plate 140: bolt

150: steel plate cover 160: rebar

170: slab 180: clearance

Claims (2)

In the replaceable buried expansion joint of the bridge is installed in the clearance 180 between the different slabs (slab: 170), A rail structure in which both sides of the longitudinal direction are opened and an opening 114 having a continuous shape in a longitudinal direction is formed on one surface of the width direction, and a fixing portion 112 having a hook shape bent upward in the direction of the oil passage 180. Is provided, a pair of fixed frames 110 are symmetrical to each other and are buried in the opposite sides of the different slab (170) installed; Hook portion formed in the form of a "U" -shaped cross-section is bent downward in the outer direction at both ends in the width direction is provided, the opening 114 while being formed continuously along the longitudinal direction on both sides of the width direction Insertion portion 122 of the "U" shaped cross-sectional shape located on the outside of the) is provided, the fastening portion 121 is caught by the fixing portion 112 is disposed parallel to the fixing frame 110 A drain plate 120 which is floated in the oil gap 180 in a state; It is characterized in that it comprises a drain guide plate 130, the lower portion is inserted into the support portion 122 of the drain plate 120 and the upper portion is inserted into the inside of the fixed frame 110 through the opening 114. Reclaimable expansion joints for bridges The method of claim 1, The drainage plate 120 or the drainage induction plate 130 may be formed by bending a metal plate, or may be formed of any one of polyvinyl chloride (PVC), polyethylene (PE), and engineering plastics. Replaceable buried expansion joint of the bridge, characterized in that.

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