KR20060092610A - Fabricated expansion joint for bridge for rail road - Google Patents

Abstract

        The present invention is to install the bridge protection concrete on both sides of the upper girder between the girder and the girder installed on the railway bridge in contact with each other and installed across it to absorb the new construction of the railway bridge and to generate excellent on the railway road Regarding the installation of the prefabricated bridge expansion joint device for draining the back through the drainage,

        The prefabricated bridge expansion joint is installed at a certain height at one end of the upper part of the girder facing the bridge girders and an anchor bolt on the abdomen of the support to be embedded in the bridge protection concrete to support the support. And an upper waterproof plate provided with a wedge or a wing portion provided at an upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the supporting portion, the upper protrusion protruding upward from the upper portion of the upper portion of the upper protrusion portion, It is a prefabricated bridge expansion joint device inserted into the support of the upper support portion.

        The method of installing the prefabricated bridge expansion joint to the railway bridge is installed on the top of the girder between the bridge girder formed to face the bridge girder, and the support while installing the support at a certain distance on the inner side of the support formwork Install anchor bolts in the abdomen of the, and install the upper cover formwork in the groove formed on the support formwork and the upper part of the support, cast concrete on the upper part of the girder, but to the height where the support is installed, constant from the support to the protective wall To pour cured for downward slope, waterproof the drainage on the concrete surface to be inclined downward, and install the inclined direction so that the direction of supporting part is downwardly inclined, Install the bridge protection concrete, For removal with the top cover die and the support mold is installed on the upper portion of the support die and the support, and is made of a step of assembling the installation plate top water at the top of the support The support install prefabricated bridge expansion joints in railway bridges.

Description

        Fabricated expansion joint for bridge for rail road

        Figure 1 is a perspective view showing that the prefabricated bridge expansion joint of the present invention is installed on a railway bridge.

        Figure 2 is a plan view showing that the prefabricated bridge expansion joint of the present invention is installed on the railway bridge.

        Figure 3 is a view showing a cross-section A-A of the prefabricated bridge expansion joint of Figure 2;

        Figure 4 is a view showing in detail the upper waterproof plate and the support of the prefabricated bridge expansion joint of the present invention.

        Figure 5 is a view showing another embodiment of the upper waterproof plate of the prefabricated bridge expansion joint device of the present invention.

        Figure 6 (a) (b) (c) (d) (e) is a view showing a process of installing the prefabricated bridge expansion joint device of the present invention on a railway bridge.

<Description of the symbols for the main parts of the drawings>

        10: railway bridge 11: girder

        12: pier 13: bridge deck

        14: barrier 15: bridge protection concrete

        16 bridge concrete surface 17 slope direction

        18: bridge girder clearance 19: rail

        20: track concrete 21: drainage

        30: bridge expansion joint

        40: upper waterproof plate 41: upper protrusion

        42: wing 43: wedge

        44: protrusion

        46: downward bending wing 47: downward protrusion

        48: drainage passage 49: drainage hole

        50: support part 51: groove part

        52: bending part 53: branch part

        54: upper support 55: lower support

        56 abdomen 57: drainage pipe

        60: anchor 61: nut

        62: leaflet nut 63: anchor bolt

        90: upper cover die 91: protrusion

        100: support die 101: support die groove

        The present invention relates to a prefabricated bridge expansion joint device for installing across the bridge girder clearance formed by connecting the girder on the bridge to install the railway bridge,

        The prefabricated bridge expansion joint is installed at a certain height at one end of the upper part of the girder facing the bridge girders and an anchor bolt on the abdomen of the support to be embedded in the bridge protection concrete to support the support. In the groove formed in the upper part of the upper support of the support part, the wedges formed at the lower side of both wing parts of the upper waterproof plate are inserted and installed.

        The process of installing the bridge expansion joint to the railroad bridge is installed so as to face the pier while installing bridge protection concrete placed on the upper part of the girder with the thickness of the girder and the girder as a boundary to protect the upper part of the girder. Anchor bolts are provided on the girder side end portions provided on both sides of the bridge girder flow path, and a support bolt is installed on the inner side of the support formwork at a predetermined distance, while the anchor bolt is installed on the abdomen of the support portion and the anchor bolt is provided with a shear support nut. Installed on the outside of the bridge girder rail, the upper cover formwork is installed in the groove formed in the upper portion of the support formwork and the support, cast concrete on the upper portion of the girder, but only up to the upper portion of the support, but constant downward from the support to the protective wall Pour curing to the slope, and downward Install the bridge-protected concrete in which concrete is poured to a certain thickness on the upper part of the drainage waterproofing by installing the inclined direction so as to incline downward in the direction where the supporting part is installed on the surface of the concrete poured to be inclined. Remove the upper cover formwork and the support formwork installed at the upper portion of the support formwork and the support, together with the wedges installed in the lower portion of the wing extending to both sides of the upper waterproof plate to the upper support formed on the upper portion of the railroad It is a prefabricated bridge expansion joint that is prefabricated on the bridge.

        The present invention relates to a prefabricated bridge expansion joint device for applying to the bridge girder clearance of the railway bridge to install the railroad tracks by placing concrete on the top of the bridge girder, the absorption of the new construction of the bridge and the superiority generated in the upper portion of the bridge Prefabricated bridge expansion joint that can be installed by simply assembling each part for easy drainage while minimizing the components constituting the prefabricated bridge expansion joint and draining smoothly. To provide a device.

        Conventionally, the concrete joint separately installed at the time of installation by installing another concrete layer on the top of the girder in order to install the railroad tracks in order to install the rail tracks in order to install the bridge in connection with the girder respectively connected to the bridge to install the bridge. If there is a problem such as flowing into the device and the new device needs to be damaged and replaced due to the difference in the external temperature, it is installed in the girder after crushing a separate concrete layer placed on the top of the girder to make a working space. After crushing the girders to remove the expansion joints, it is very cumbersome to install the expansion joints in the girder's runway and to lay a separate concrete layer again. Very dangerous with safety accidents by railroads operating Problems that are uneconomical, cumbersome, and expensive to repair have always existed.

        The present invention is to be installed in the bridge protection concrete separately placed on the top plate of the girder rather than the bridge girder in order to improve the problem as described above in the bridge protection concrete placed on the upper side of the girder on both sides of the bridge girder spacing. Simply insert the wedges formed on the lower part of the support part and the wing part extended on both sides of the upper waterproof plate installed across the support part to the upper part of the support part, and the installation is completed. When removing the waterproof plate and inserting another upper waterproof plate is to provide a prefabricated bridge expansion joint installed on the railway bridge significantly improved installation and repair work compared to the prior art that the repair work is simply completed.

        The present invention relates to a prefabricated bridge expansion joint device for applying to a track concrete railway bridge for installing track concrete on the top of the bridge girder,

        The prefabricated bridge expansion joint 30 is provided at one side of the support part 50 and the abdomen 56 of the support part installed at a predetermined height at one end of the upper part of the girder 11 installed to face both sides of the bridge girder span 18. Insert and install the anchor bolt 63 is installed leaflet nut 62, the anchor bolt 63 is attached to the leaflet nut 62 is embedded in the bridge protection concrete 15 to support the support 50 In addition, the grooves 51 formed on the upper part of the upper support 54 of the support part 50 are assembled by inserting the wedges 43 formed on the lower part of both wing parts 42 of the upper waterproof plate 40. .

        The process of installing the prefabricated bridge expansion joint is as follows.

        The support formwork 100 is installed on the girder 11 installed on both sides of the bridge girder clearance 18 formed by installing the girder 11 facing each other on the bridge 12,

        Shear installed on one side of the anchor bolt 63 while installing the anchor bolt 63 on the abdomen 56 of the support portion 50 while installing the support portion 50 at a predetermined distance on the inner surface of the support die 100 The support nut 62 is installed inside the support die 100,

        The upper cover formwork 90 is installed in the groove part 51 formed at the upper part of the support formwork 100 and the support part 50, and the concrete is placed on the upper part of the girder 11, but only up to the upper part of the support part 50. While pouring, pour curing to support a constant downward slope from the support to the firewall,

        Placing concrete with a certain thickness on top of the drainage waterproofing 21 so as to be inclined downward (17) in the direction in which the support portion 50 is installed while draining the waterproofing 21 on the concrete surface that is poured inclined downward. Install the bridge protection concrete (15),

        Remove the upper cover formwork 90 and the support formwork 100 installed on the support formwork 100 and the support 50, together,

        Through the process of inserting the wedge 43 provided in the lower portion of the wing portion 42 extending on both sides of the upper waterproof plate 40 in the groove portion 51 formed on the upper support 54 of the support portion 50 Characterized in the prefabricated bridge expansion joint device 30 is installed prefabricated on the railway bridge (10).

        Hereinafter, the operation and effects of the configuration of the present invention will be described in detail with reference to the accompanying drawings.

        1 is a perspective view showing the prefabricated bridge expansion joint of the present invention installed on a railway bridge, the bridge protection concrete installed to install the rail 19 while protecting the girder 11 on the top of the bridge girder 11 ( 15) is installed on the girder 11 with a predetermined thickness, and the inclination direction 17 having a constant inclination is formed from the barrier 14 formed at both ends of the bridge, and the girder and the girder are connected to the upper part of the bridge. The installed bridge girder clearance unit 18 is provided with a prefabricated bridge expansion joint device 30 so that the rainwater generated in the upper portion of the bridge is drained through a separate drain pipe instead of the bridge girder clearance 18. If rainwater flows into the bridge device installed under the girder connected to each other and prevents the bridge device from corroding, it absorbs the new construction of the bridge and the vehicle runs on the bridge. It is a prefabricated bridge expansion joint device (30) that is very easy to install and repair to reduce the noise generated during the installation and easy to repair the expansion joint device.

        It is to be noted that the device can be installed and used in the girder of the bridge as well as the bridge protection concrete to protect the top of the bridge.

        Figure 2 is a view showing a prefabricated bridge expansion joint of the present invention installed on a railway bridge in a plan view, the protection wall 14 is installed on both sides of the width direction of the upper part of the girder and the bridge protection in the direction of a constant slope inwardly In the part where the bridge girder clearance 18 is installed, in which the concrete 15 is poured and the rail 19 is installed thereon, and the girder and the girder face each other. In order to drain to a certain place, the prefabricated bridge expansion joint 30 is installed in the width direction of the bridge so that rainwater can be discharged through the drain, so as to absorb the expansion of the bridge and reduce the size of the noise. Prefabricated bridges are made of soft neoplanne strip seals that do not easily degrade to differences and maintain their strength. It is a shaft joint device (30).

        Figure 3 is a view showing a cross-section A-A of the prefabricated bridge expansion joint of Figure 2, Figure 4 is a view showing in detail the upper waterproof plate and the support of the prefabricated bridge expansion joint,

        A leaflet support nut 62 is provided at one side of the support part 50 and the abdomen 56 of the support part 50 installed at a predetermined height at one end of the upper part of the girder 11 facing the both sides of the bridge girder clearance 18. Insert and install the anchor bolt 63 is installed, but the anchor bolt 63 is attached to the leaflet support nut 62 is embedded in the bridge protection concrete 15 to support the support 50, the support 50 Into the groove portion 51 formed on the upper portion of the upper support 54, the wedges 43 formed on both sides of the lower wing portion 42 of the upper waterproof plate 40 is inserted and installed.

        The support 50 is generally Y-shaped and the lower support 55 is positioned at a constant height of the bridge protection concrete 15 installed at a constant height of the girder, and the width of the support 50 is lower than the lower support 55. Narrow abdomen 56 is formed, but forms a through-hole in the center of the abdomen 56 through the anchor bolt 63 is installed penetrating through the anchor bolt (63) at one end in the through hole and the abdomen 56 between the other end In order to be fixed to the nut 61, the branch portion 53 is formed on both sides of the abdomen 56, so that the groove portion 51 is formed inside the branch portion 53, but the branch portion 53 is formed. The upper end portion of the bent portion 52 is formed to be bent into the groove portion 51.

        The upper waterproof plate 40 has an upper protrusion 41 protruding at a constant height in a central portion thereof, and extends at both sides thereof to form a wing portion 42 formed at a constant length and has an end portion of the wing portion 42. Wedges 43 having a plurality of protrusions 44 formed thereon are formed at a lower portion thereof, and grooves 51 having a predetermined shape are formed on an upper portion of the upper support 54 formed on the upper portion of the support 50. The bent part 52 is bent into the groove part at the upper part of the branch part 53 forming the bent part so that the bent part 52 is formed in the wedge 43 when the wedge 43 is inserted into the groove part 51. When inserted into the grooves 51, the protrusions 44 are inserted into the grooves 51 so that the protrusions 44, which are installed in a triangular shape with a wide top and a narrow bottom, come into contact with the bent portion 52 from a narrow bottom to a wide top. It is to be inserted into the groove 51.

        In addition, the wedge 43 formed in the lower portion of the wing portion 42 is formed in the lower portion of the portion located in the predetermined distance inward from the end of the wing portion 42 so that the rainwater generated in the upper waterproof plate 41 groove portion ( 51) Prevent entry into

        The upper waterproof plate 41 is installed in the bridge girder clearance 18 formed in the width direction of the bridge so that the central portion protrudes to a certain height and extends on both sides to form the wings 42, the rain generated in the bridge Prefabricated bridge expansion joint is installed to separate the entire length of the bridge at regular intervals so that the rainwater is separated and drained to both sides by the upper protrusion 41 formed at a constant height in the center of the upper waterproof plate 40 when the water is drained (30) is divided into a certain section so that the rainwater is drained separately so that a large quantity of rainwater is concentrated on one side of the bridge at the same time during the rainy season so as not to disturb the operation of the high-speed train. This is to maintain a constant strength of the upper waterproof plate (40).

        5 is a view showing another embodiment of the upper waterproof plate of the prefabricated bridge expansion joint of the present invention, the upper waterproof plate 40 is bent downward so that the downward projection 47 is formed so that the center is bent downward. The drainage hole 48 is formed at regular intervals while the part naturally forms the drainage path 48, and the drain pipe 57 is connected to the drainage hole to install rainwater, and the wings extend to both sides and are formed to have a constant length. The upper support 54 is formed on the upper portion of the support portion 50 is formed so that the portion 42 is formed, and the wedge 43 formed with a plurality of protrusions 44 is formed at the lower end of the wing portion 42 The groove portion 51 having a predetermined shape is formed on the upper portion of the groove portion 51 so that the bent portion 52 is bent into the groove portion on the upper portion of the branch portion 53 forming the groove portion 51. To be inserted within The bent portion 52 is inserted into the protrusion 44 formed in the wedge 43 so as not to be easily pulled out, but when inserted into the groove 51, the protrusion 44 installed in a triangular shape having a wide top and a narrow bottom is narrow. From the bent portion 52 is in contact with a wide upward from the easy to be inserted into the groove (51).

        In addition, the wedge 43 formed in the lower portion of the wing portion 42 is formed in the lower portion of the portion located in the predetermined distance inward from the end of the wing portion 42 so that the rainwater generated in the upper waterproof plate 41 groove portion ( 51) Prevent entry into

        Figure 6 (a) (b) (c) (d) (e) is a view showing the process of installing the prefabricated bridge expansion joint device of the present invention on a railway bridge,

        Installing the support formwork 100 on the upper part of the girder installed on both sides of the bridge girder clearance 18 formed by installing the girder 11 to face each other on the bridge 12,

        Shear support nut installed on one side of the anchor bolt while installing the anchor bolt 63 on the abdomen 56 of the support portion 50 while installing the support portion 50 at a predetermined distance on the inner surface of the support die ( 62 is installed inside the support formwork 100,

        The upper cover formwork 90 is installed in the groove formed in the upper portion of the support formwork 100 and the supporter 50, and the concrete is placed on the upper part of the girder 11, but only to the upper part of the supporter while the protection wall in the supporter. (14) pour cured to maintain a constant downward slope,

        Bridge protection concrete in which concrete is poured to a certain thickness on the upper part of the drainage waterproofing 21 so as to be inclined downward in the direction in which the support part 50 is installed while the drainage waterproofing 21 is poured onto the concrete surface which is inclined downwardly. Install 15,

        Remove the upper cover formwork 90 and the support formwork 100 installed on the support formwork 100 and the support 50, together,

        Through the process of inserting the wedge 43 is provided in the lower portion of the wing portion 42 extending on both sides of the upper waterproof plate 40 in the groove portion 51 formed on the upper support 54 of the support portion 50 It is a prefabricated bridge expansion joint device 30 is installed prefabricated on the railway bridge (10).

        Installing the upper cover formwork 90 is that the support is to be installed at a constant height in the girder to maintain the height of the upper portion of the support form and the upper portion of the support by the upper cover formwork to maintain the height At the same time to prevent the concrete or other materials from being introduced into the groove of the support when pouring the drainage waterproof and bridge protection concrete (15).

        In addition, in order to place the bridge protection concrete, a concrete layer is formed on the upper part of the girder with a predetermined thickness from the center to the outside of the bridge, that is, the inclination toward the protection wall. This time the concrete layer to be in the opposite direction to the inclination direction formed in the concrete layer to pour the concrete to the bridge protection concrete, the waterproofing of the drainage is leaked to the girder, rainwater generated on the surface of the bridge protection concrete In order to prevent the rainwater from being spilled on the surface of the bridge, it is necessary to place another concrete layer on the drainage waterproofing layer to protect the drainage waterproofing layer and to collect and drain the rainwater generated in the upper part of the bridge along the slope direction toward the center of the bridge.It is to form the determined slope.

        Installing the supporting formwork is to install the supporting part at a certain height, and prevents the concrete from being lost into the bridge girder clearance when placing the bridge protection concrete, removes the supporting formwork installed in the bridge girder clearance, and removes the upper waterproof plate on the support. In order to secure a work space as much as the space of the support form removed when installing, to secure a work space for the maintenance work in the future maintenance work.

        The present invention is to protect the bridge top plate to be installed in the bridge protection concrete layer for laying the tracks while the support portion and the upper waterproof plate installed across the bridge protection concrete that is placed on top of the girder on both sides of the bridge girder spacing Simply insert the wedge or the support plate formed on the lower part of the wing part which is installed at both sides to the upper part of the support part. If it is inserted, the repair work is simply completed, and it can expect about 50% cost reduction effect compared to the conventional expansion joint for gravel track, and compared with the existing expansion joint for concrete track. No need for additional drainage and top waterproof with neoplan strip seal It is a new expansion joint device made of prefabricated plates that can be replaced with a plate. It is a very economical and practical device that can drastically reduce installation costs and maintenance costs of facilities.

Claims (5)

        Anchor bolts installed on both sides of the bridge girder clearance 18 to support the support 50 is installed at a certain height at one end of the upper part of the girder 11 and the leaflet support nut 62 on one side of the abdomen 56 of the support. An insertion bolt 63 is installed, but the anchor bolt 63 to which the leaflet nut 62 is attached is embedded in the bridge protection concrete 15 to support the support 50, and the upper support of the support 50. Prefabricated bridge expansion joint is installed on the railway bridge characterized in that the 54 and the upper waterproof plate (40) are mutually assembled.         The method of claim 1,         The support portion is Y-shaped as a whole, the width of the lower abdomen 56 is narrower than the lower support 55 on the lower support 55 is formed in the through hole in the center of the abdomen 56 by forming a leaflet nut (one side end in the through hole ( 62 is installed to penetrate through the anchor bolt 63 is installed to form a branch portion 53 formed on both sides above the abdomen 56 so that the groove portion 51 is formed inside the branch portion 53, but the branch portion 53 Prefabricated bridge expansion joint is installed on the railway bridge characterized in that the bent portion 52 is bent into the groove portion 51 is formed in the upper end.         The method of claim 1,         The upper waterproof plate has an upper protrusion portion 41 protruding at a constant height in a central portion thereof, and extends at both sides thereof to form a wing portion 42 having a predetermined length, and a protrusion portion below the end portion of the wing portion 42. Prefabricated bridge expansion joint is installed on the railway bridge characterized in that the wedge (43) formed with a plurality of (44) is formed.         The method of claim 1,         The upper waterproof plate is formed such that the downward projection 47 is formed so that the center is bent downward, the downwardly curved portion is used as the drainage passage 48, and the drainage hole 49 is formed at regular intervals in the drainage passage. The drain pipe 57 is connected to the drain hole so that the rainwater is drained. The wings 42 are formed to extend to both sides of the upper waterproof plate to have a predetermined length, and the lower portion of the end of the wing 42 is formed. Prefabricated bridge expansion joint is installed on the railway bridge characterized in that the wedge (43) formed with a plurality.         In the method of installing the bridge expansion joint to the railway bridge,         Installing the support formwork 100 on the upper part of the girder installed on both sides of the bridge girder clearance 18 formed by installing the girder 11 to face each other on the bridge 12,         Shear support nut installed on one side of the anchor bolt while installing the anchor bolt 63 on the abdomen 56 of the support portion 50 while installing the support portion 50 at a predetermined distance on the inner surface of the support die ( 62 is installed inside the support formwork 100,         The upper cover formwork 90 is installed in the groove formed in the upper portion of the support formwork 100 and the supporter 50, and the concrete is placed on the upper part of the girder 11, but only to the upper part of the supporter while the protection wall in the supporter. (14) pour cured to maintain a constant downward slope,         Bridge protection concrete in which concrete is poured to a certain thickness on the upper part of the drainage waterproofing 21 so as to be inclined downward in the direction in which the support part 50 is installed while the drainage waterproofing 21 is poured onto the concrete surface which is inclined downwardly. Install 15,         Remove the upper cover formwork 90 and the support formwork 100 installed on the support formwork 100 and the support 50, together,         The process of inserting and installing the wedges 43 installed in the lower portion of the wing portion 42 extending on both sides of the upper waterproof plate 40 in the groove portion 51 formed on the upper support 54 of the support portion 50 Prefabricated bridge expansion joint is installed on the railway bridge characterized by being installed prefabricated on the railway bridge (10).

Images