joint structure of precast bridge slab and girder and bridge construction method using the same

专利摘要:
The present invention relates to a connection structure of a precast bridge deck and a girder and a bridge construction method using the same. More specifically, by simply connecting the connecting member formed with various shear connecting members to the precast bridge deck in advance, the joining member and the girder can be easily joined, and thus the workability and shortening of the air are reduced, and the precast bridge deck and the girder are integrated as a whole. It can be produced in a synthetic cross-section having a structure to provide a means to have a technical effect that is structurally enhanced durability and rigidity, in existing or new bridges, precast bridge deck; A connection member integrally formed with the bridge bottom plate at a connection portion of the bridge bottom plate and the girder and including a plate having a shear connection member protruding toward the girder; And a girder formed corresponding to the connection member.
公开号:KR20040044810A
申请号:KR1020020072994
申请日:2002-11-22
公开日:2004-05-31
发明作者:황윤국；김형렬；박기태；이영호
申请人:한국건설기술연구원；
IPC主号:

专利说明:

Joint structure of precast bridge slab and girder and bridge construction method using the same}
[8] The present invention relates to a connection structure of a precast bridge deck and a girder and a bridge construction method using the same. More specifically, the bridge is formed on a girder of an existing bridge or a new bridge in a state in which a connecting member including a shear connecting material is integrally formed on a precast bridge deck (eg, a bridge deck made of concrete or composite material). By installing the bottom plate, it is very easy to control and economical because it has excellent workability, and the connection structure of the precast bridge bottom plate and the girder and the bridge using the same which enables the integrated operation by the enhanced connection effect between the bridge bottom plate and the girder It is about a construction method.
[9] In the case of conventional bridge deck construction, when the bridge floor plate 10 itself is not cast or cured in the field, the part or the whole is precast and manufactured in the factory and installed in the pre-installed bridge girders 20, FIG. A precast bridge deck 10 (concrete slab plate) having a hole 11 formed thereon after the girder 20, an I-beam or a concrete beam, a preflex beam, etc. is installed in the piers 30 in advance as shown in 1a. While installing the steel plate, etc. by the lifting device, the shear connector (40, pre-installed at the time of making the girder, bolts, steel rods or U-shaped rebars, etc.) formed on the upper surface of the girder for the coupling is inserted into the hole of the bridge bottom plate. The hole is filled with a filler such as mortar. In this case, the girder and the bridge bottom plate connection portion may be provided with a haunche 50, this method is also applied to the case of using a precast bridge bottom plate made of a composite material for the bridge bottom plate.
[10] That is, in the case of the precast bridge deck, its own weight is much smaller than that of general steel or concrete, and its structural characteristics (bending stiffness, tensile strength, compressive strength, etc.) are excellent and are made of composite materials (FRP (Fiber Reinforced Plastics, etc.)). The bridge deck plate is made by connecting the bottom plate members of cross-sectional shape with each other. Recently, it is widely used in civil engineering and construction fields. In the bridge field, many bridges are installed in the bridge direction (usually the direction in which bridges are installed). The bridge is completed by installing the girder and installing the composite bridge bottom plate manufactured by the precast method on the girder, and also in the coupling between the bridge bottom plate and the girder, the shear connector is installed on the girder. The bridge deck is joined to the girder by inserting the shear connector into the preformed hole in the bridge deck. Has a conventional manner as employed. In this case, the connection structure between the girder and the precast bridge deck may have the following problems.
[11] In other words, if the bridge deck is removed from the girder and a new bridge deck is installed, inevitable damage to the shear connector installed on the girder is required when removing the bridge deck. Or because the installation work is very cumbersome to be installed on girders, such as steel, workability is very poor. In particular, when the shear connector formed on the girder is made of curved reinforcing bars, when the shear connector is replaced with a bridge deck having a different shape, it is inconvenient to install the shear connector separately. As the structure became uncertain, it was uneconomical to design the bridge superstructure with non-synthetic cross section. In addition, in the coupling of the precast bridge deck and the girder made of the composite material, in particular, the workability of the connecting portion treatment is formed such that a hole is formed so that the shear connecting material formed on the upper surface of the existing girder can be inserted into the connection part with the girder. If the bridge deck made of a new composite material needs to be installed, especially if the shear connector formed at the top face is broken (eg, separate insertion of filler material), then the broken shear connector is demolished in some way and the new shear connector is removed. There was also inconvenience to install.
[12] Therefore, in the existing bridges as well as the new bridges, the connection between the precast bridge deck and the girder can solve the problems caused by the damage and dismantling of the shear connector, and the development of a means for expecting the perfect coupling of the connection is urgently needed. Was required.
[13] The present invention is to solve the above problems,
[14] An object of the present invention is to install the bridge bottom plate on the girder in a state in which the connecting member formed with the shear connection member is directly integrated to the precast bridge deck, and can be applied to both the construction of the new plate and the bottom plate of the existing bridge. It is to provide the connection structure of the precast bridge deck plate and girder and the bridge construction method using the same.
[15] Another object of the present invention is to form a plurality of shear connecting materials integrally to the precast bridge deck in the factory, it is not necessary to construct additional shear connecting material in the girder when the existing bridge deck replacement work, easy construction and quality maintenance By providing a connection structure of the precast bridge deck plate and girder to improve the durability and the like and a bridge construction method using the same.
[16] Another object of the present invention is to install the precast bridge bottom plate in which the bridge connector is integrally fixed in the bridge construction method after filling the girder and the bridge bottom plate with a filling material after installing the girder and the bridge bottom plate is excellent in construction workability, shear in the factory It is to provide a connection structure of the precast bridge deck and girder and bridge construction method using the same, even if a sufficient number of shear connectors are installed because of the connection material.
[17] Another object of the present invention is to install a sufficient shear connecting material to enable the integral operation of the girder and the precast bridge deck, it can be designed in an efficient composite cross-section can be designed to economic bridge cross-section structure The present invention provides a connection structure of a precast bridge deck plate and a girder, and a bridge construction method using the same.
[18] Another object of the present invention, when applied to the precast composite bridge deck having an internal hollow formed, there is no need to provide a space for placing the girder connecting filler in the interior of the bridge bottom plate itself, It is to provide the connection structure of the precast bridge deck and girder with improved construction and construction quality because no filling material is poured and the bridge construction method using the same.
[1] Figure 1a is a specific example of the connection portion of the conventional precast bridge deck and girder.
[2] Figure 1b is a specific example of the bridge deck plate made of composite material installed on the girder.
[3] 2A, 2B, 2C, 2D, 2E, 2F, and 2H are embodiments and modifications of the connection structure of the bridge deck plate and the girder of the present invention.
[4] <Description of the symbols for the main parts of the drawings>
[5] 100: precast bridge deck
[6] 200a, 200b, 200c, 200d, 200e, 200f: connection member of the present invention
[7] 300: bridge girder (or mold)
[19] In order to solve the above technical problem of the present invention, in particular, in the connection structure of the precast bridge deck and the girder, unlike the conventional connection member including a shear connecting material in the state in which the bridge bottom plate on the girder in the state of pre-installed on the bridge bottom plate As a hypothesis, this connection structure of the present invention can take advantage of the fundamental advantage of using a bridge deck made of a composite material having a particularly various cross-sectional shape. That is, in the case of installing the bridge bottom plate manufactured by assembling (precast) the bottom plate member made of composite material, the construction of the bridge bottom plate itself can be made very quickly, and the material characteristics Although it can be expected to improve the quality control effect, but in connection with the bridge girder uses the technology indistinguishable from the conventional method as it is, the shortening of the air and economical manifestation by making the bridge base plate composite material with this connection structure alone It is difficult to expect the ripple effect. Therefore, the present invention can solve the above problems by connecting the bridge bottom plate and the girder in a state in which the connecting member including the shear connecting material is directly installed on the bridge bottom plate made of composite material, and furthermore, the steel plate or not composite material In the case of precast concrete bridge deck construction, it provides a connection structure between bridge deck and girder that can be applied as it is.
[20] Hereinafter, in the case of a bridge deck made of a composite material, an embodiment of a connection structure between a precast bridge deck and a girder and a bridge construction method using the same will be described with reference to FIGS. 2 and 3.
[21] <Connection structure of precast bridge deck and girder>
[22] The connection structure is a new or existing bridge, precast bridge deck 100; A connecting member (200a, 200b, 200c, 200d, 200e, 200f) formed integrally with the bridge bottom plate at the connection portion of the bridge bottom plate and the girder, and including a plate having a shear connection member protruding toward the girder; And a girder 300 formed corresponding to the connection member.
[23] The bridge bottom plate 100 is made of a composite material in the present invention can be used that is precast to have a variety of cross-sectional shape factory manufactured. As the composite material, FRP (Fiber Reinforced Plastics) may be used. Bridge deck in the present invention is not limited to a composite material such as FRP, as described above, PC bridge deck or steel plate may be used.
[24] An example of using such a composite material for a bridge deck 100 is to fabricate a bottom plate member having various cross-sectional shapes made of a plurality of composite materials, and then plate them having a constant height as shown in FIG. 1B. It is to make a shape.
[25] Since the bridge bottom plate 100 has a hollow formed therein, its own weight is remarkably reduced compared to steel or concrete floor plates having the same height and area, so that the bridge bottom plate 100 is very easy in its installation work, and corrosion and durability deteriorate. Because it has very excellent physical properties in various external environments, it is also excellent in durability, and in particular, it can eliminate the period required for curing, such as concrete floorboards, and the work air for installation can be shortened to an unparalleled level. Most of them are factory manufactured (precast), so the quality is homogeneous and the management is very efficient.
[26] The bridge bottom plate 100 is mounted and mounted by a lifting device such as a crane on the girder 300, which is installed in the axial direction on the bridge 30, also called a mold. An example of the finally mounted state can be seen in Figure 1b.
[27] 2A to 2H illustrate various embodiments of the connection portion between the bridge bottom plate 100 and the girder 300.
[28] <Example 1 for the connecting member>
[29] The connection member 200a of the first embodiment includes a plate 201a formed on the lower outer surface of the bridge bottom plate 100; And a shear connector 202a projecting downwardly perpendicular to the lower surface of the plate. Filler (203a, concrete or mortar, etc.) formed in a constant cross-section between the bridge deck and the girder; and will be described with reference to Figures 2a and 2b.
[30] The filler is a reinforcing material for integrating the bridge bottom plate and the girder, and even if the bridge bottom plate and the girder have relative displacements from each other by external loads, a material such as concrete or mortar may be used to secure the integrity. have.
[31] The plate 201a is a plate-shaped member attached by a connector such as an adhesive or a bolt by the length of the girder in the direction in which the girder 300 is formed on the lower surface outside the bridge bottom plate 100 (the axial direction). The length and width may be changed depending on the length of the bridge deck, the width and length of the girder, and the material may be made of steel, or may be made of a composite material such as bridge deck, and the connection member As one configuration, the shear connecting member to be described later serves as a support plate that can be formed at a predetermined position and serves to enhance the rigidity of the bridge deck itself. Furthermore, the plate may be manufactured to have the same length as the girder as described above, but if necessary, the plate may be reduced by protruding a predetermined length from both sides of the connection portion with the girder as needed. That is, the plate may be formed only at the connection portion with the girder.
[32] The shear connector 202a is filled between the girder and the bridge bottom plate to attach the girder and the bridge bottom to each other (concrete or mortar may be used. In addition, hardened resins may be used.) As a reinforcing member for suppressing relative movement of the plate and the girder, the plate 201a is protruded vertically downward and is formed at a predetermined interval. This shear connector is shown in Figure 2a when the stud bolt is used, but can use a vertical bar, can be made in the U-shape, it can be formed in a variety of other shapes, of course, the same as the plate The material may be steel or may be one made of a composite material such as a bridge deck.
[33] In the case of the connecting member 200a of Embodiment 1 having such a plate and a shear connecting material coupled to the -Shaped cross section, the shear connecting material is integrally manufactured at the factory when the bridge bottom plate 100 is manufactured. In order to connect the girder and the bridge deck, it is common to install various types of shear connectors on the upper surface of the girder and to install a bridge deck on the bridge deck. When it is necessary to dismantle the bridge bottom plate, such as when reinforcing the degradation of the durability in the case, when dismantling the bridge bottom plate, the shear connection material formed on the upper surface of the girder is inevitably damaged. In addition, if the shear connector is damaged on the girder and the new shear connector with different cross-sectional shape is installed, the work of installing the shear connector on the upper side of the girder in a narrow space such as the upper part of the pier is very inferior in construction. There is a safety accident problem because all of them are working at height, but quality control is not easy.
[34] Therefore, in the present invention, rather than installing the shear connector on the upper surface of the girder, it is formed integrally under the bridge bottom plate, and if there is a need to dismantle the bridge bottom plate, the shear connector can be dismantled only by dismantling the bridge bottom plate. There is no need to dismantle the connector, and the new bridge deck has the necessary number of shear connectors already attached, so there is no need for additional installation on site due to shear connector deficiency. Can be arranged in advance, and the effect of the shear connection can be pre-arranged, so that the bridge deck and the girder can function as a composite bridge, which can reduce the construction cost and significantly lower the durability and quality maintenance costs. There is an advantage.
[35] Filler 203a is formed in a predetermined shape such that the connecting member is included between the bottom of the bridge bottom plate and the top of the girder as shown in FIG. As the filling material, a material such as concrete or mortar may be used, but the same material as that used to make bridge decks and girders may be used. That is, curable resin, such as a polyester resin, can be used. Conventionally, this filler is formed by using a separate injection device to be filled in the hollow inside the bridge bottom plate made of composite materials, and this work is very poor in workability, and there is a problem in the durability of the connection part if it is not filled tightly. If there is a problem in connection, the bridge bottom plate and the girder may be integrated and thus may not be able to function as a composite bridge, and thus maintenance costs such as repair and reinforcement may be required. It is possible to solve this problem.
[36] The girder 300 may be variously selected according to the bridge type, and in the case of a new bridge, an additional, optional shear connector 310 such as a separate stud bolt may be installed on the upper surface of the girder, and the connection member It is possible to form the receiving groove 320 in the upper surface of the girder to accommodate the formed shear connector. Such a receiving groove may be formed by blocking out the upper surface of the girder, but may also form a hole in which the shear connector of the connecting member can be inserted in advance.
[37] <Example 2 for the connecting member>
[38] The connection member 200b of the second embodiment includes a plate 201b formed on the inner bottom surface of the bridge bottom plate 100; A shear connector 202b formed through the lower surface of the plate and the bridge bottom plate to protrude vertically downward; Filler formed of a constant cross-section between the bridge deck and the girder; And a connection reinforcing plate 203b having a hole formed therein so that the shear connecting member of the connection member penetrates the outer lower surface of the bridge bottom plate, and will be described with reference to FIGS. 2C and 2D.
[39] Unlike the first embodiment, the plate 201b to which the shear connector is attached is different from that formed in the hollow inner bottom surface formed in the bridge bottom plate 100, which is a plate to which the shear connector is attached when the bridge bottom plate is manufactured. What is necessary is just to produce 201b in the state arrange | positioned previously in a lower surface. That is, as shown in FIG. 2C, the hollow connecting plate is formed in advance in a predetermined position in a predetermined plate, and the hollow bottom plate is prepared in advance when fabricating the bridge bottom plate in a state in which a shear connecting material 202b such as a stud bolt having a bolt head is installed. Place it on the side and make the bridge deck. As a result, unlike the first embodiment, there is an advantage in that a work process of separately manufacturing a connecting member having a shear connecting material formed thereon and attaching it separately from a bridge bottom plate manufacturing work may be omitted. Of course, the bridge can be made the same as the length of the base plate 100, but only the connecting portion with the girder can be produced so that the plate formed with the shear connection material can be formed on the inner bottom surface of the bridge base plate, bridges because it is formed inside the bridge base plate It is formed at right angles.
[40] Shear connector 202b is a case in which a bolt head-shaped stud bolt is used in FIG. 2D, but is not limited thereto. The shear connector 202b is installed through the lower surface of the plate and the bridge bottom plate. Penetrating through the lower surface of the plate and the bridge bottom plate protrudes vertically downward bridge bottom plate to cover the connection reinforcement plate 203b to be fixed to the plate 201b to the outer bottom surface of the bridge bottom plate by a nut. Only the connecting reinforcing plate can be selectively installed, the installation direction of the connecting reinforcing plate is in the axial direction (the longitudinal direction of the girder), unlike the plate.
[41] Filler and girder 300 may be applied in the same manner as in Example 1. That is, the filling material is formed in a predetermined shape such that the connecting member is included between the outer bottom of the bridge bottom and the upper part of the girder, and may use a material such as concrete or mortar, and the same material as that of the bridge bottom and the girder. You may use it. That is, the curable resin, such as polyester resin can be used is the same as in Example 1, the girder can also be installed on the upper surface additional shear connecting material, it is optional matter that can be omitted.
[42] <Modification of Example 2>
[43] The connection member 200c, which is a variation of the second embodiment, is particularly a case in which the connection member of the present invention is installed in the I-type steel girder 300, and includes a plate 201c formed on the inner bottom surface of the bridge bottom plate 100; A shear connector 202c formed through the lower surface of the plate and the bridge bottom plate to protrude vertically downward; And a connection reinforcing plate 203c having a hole formed to penetrate the shear connection member of the connection member to an outer lower surface of the bridge bottom plate, which will be described with reference to FIG. 2E.
[44] Installing the plate 201c having the shear connector on the inner bottom surface of the bridge bottom plate hollow is the same as that of Embodiment 2 (the same as 201b of FIGS. 2C and 2D), and the protruding shear connector 202c, FIG. 2C and It is also the same to use the connecting reinforcement plate 203c (which is the same as 203b of FIG. 2C and FIG. 2D) to couple the girder) to the girder. The only difference is that no fillers are used, and the shear connectors protruding downwards pass through the upper flanges of the I-girder, and the bridge deck and the I-steel are connected by tightening with nuts.
[45] Finally, the modified examples of the first, second and second embodiments of the connecting members of the present invention are connected to the plate and the shear of the connecting member according to the girder type by the connecting member having the shear connecting member formed integrally with the bridge bottom plate. By slightly modifying the position and shape of the connecting material, it can be selected and applied as much as possible. Since it can be installed considering the number and shape of the front connecting material of the connecting member, the connection between the bridge deck and the girder can be more effective. Since it is possible to secure the integrity of the bridge deck and girder, there is an advantage that the durability is also structurally enhanced.
[46] <Example 3 for Connection Member>
[47] The connecting member 200d of the third embodiment is a member inserted into the inner hollow of the bridge bottom plate end, and a bottom plate reinforcing end body 201 d in which a plurality of shear connecting member through holes 203d are vertically formed; And a shear connector 202d penetrating through the shear connector hole 204d previously formed in the bridge bottom plate so as to coincide with the through hole of the end body and the hole of the girder. This will be described with reference to FIG. 2F.
[48] The end body 201d is formed to be inserted into the hollow inside the end of the bridge bottom plate 100 as shown in FIG. 2F. That is, when the shear connector is installed as in Example 2, there is a possibility that stress may be concentrated in the lower part of the bridge bottom plate by being tightened by the connecting reinforcement plate and the nut, and thus the end body is inserted to prevent the end. It serves to prevent damage to the ends of the plates. It has a size that can be inserted into the end of the bridge bottom plate and is inserted into the inner hollow formed at the end of the bridge bottom plate, and the upper and lower surfaces are opened at the center for the purpose of weight or material saving, so that the hollow is formed. Although the case is shown, it may be manufactured without the hollow.
[49] In each corner portion of the end body, a shear connector hole 203d is formed to penetrate the end body up and down in advance, and the spacing and size of the hole coincide with the shear connector hole 204d previously installed in the bridge deck. Decide if possible. In this case, since the connecting member is provided only at the end of the bridge bottom plate, there is an advantage that it is not necessary to form the length of the bottom plate and the girder like the plates of the first and second embodiments.
[50] Shear connector 202d is a stud bolt or the like inserted into a preformed hole to coincide with the bottom plate and the end body, and is coupled to the girder and the bridge bottom plate by a nut, and may be installed in the girder as in the modification of the second embodiment. . Figure 2f shows an example of using the I-shaped steel as a girder, so that the shear connector can be coupled to the upper flange of the I-girder without the need for a separate filler, but when the other type of girder is used In this case, the same filling material as in Example 1 and Example 2 may be applied.
[51] <Modification of Example 3>
[52] Since the connecting member 200e, which is a modification of the third embodiment, is applied to an I-type girder as the girder in the third embodiment, the end body 201e is coupled to the girder 300 by a nut. However, when the girder is a concrete girder 300, there is an unsuitable surface to use the nut, so that the sleeve serving as the nut of Example 3 is installed to correspond to the position where the shear connection material is installed on the upper surface of the girder, and the bridge bottom plate A bottom plate reinforcing end body 201e, which is a member inserted into an end of the bottom plate and has a plurality of shear connecting material through-holes vertically; And a shear connector 202e penetrating through a hole for a shear connector previously formed in the bridge bottom plate so as to match the through hole of the end body and the hole of the girder. And a sleeve 205e formed on the upper surface of the girder and into which the shear connector is inserted, which will be described with reference to FIG. 2G.
[53] The end body 201e is the same as that of Fig. 2F, and is formed to be inserted into the inner hollow of the bridge bottom plate end. In each corner portion, the shear connector hole 203e is also formed to penetrate the end body up and down in advance, and the spacing and size of the hole is determined to match with the shear connector hole 204e pre-installed in the bridge deck. .
[54] The shear connector 202e is formed to be embedded in the upper surface of the girder as a stud bolt or the like inserted into a hole previously formed to coincide with the bridge bottom plate and the end body, and the sleeve 205e coincides with the formation position of the hole 204e for the shear connector. ) Is fastened. The sleeve inner surface is threaded so that it can be engaged with the bolted shear connector. In addition, it is preferable to form the restraint bar 206e in a lattice shape around each sleeve so that the position of the sleeve does not change.
[55] <Example 4 for the connecting member>
[56] The connecting member 200f of the fourth embodiment includes a plate 201f formed on the inner bottom surface of the bridge bottom plate 100. And a shear connector 202f formed through the lower surface of the plate and the bridge bottom plate to protrude vertically downward. A c-shaped connecting reinforcing plate (203f) having a hole formed therein so that a shear connecting member of the connecting member penetrates through an outer lower surface of the bridge bottom plate; A filler is formed between the bridge deck and the girder with a constant cross section, which will be described with reference to FIG. 2H.
[57] Figure 2h shows a bridge deck in particular installed on the existing bridge girder 300, damaged or remaining shear connector 204f by dismantling the existing bridge deck and installing a bridge deck made of a new composite material Is formed on the girder. In this case, in the present invention, the shear connector is separately removed, or after the removal, both ends of the plate contacting the girders are bent in cross-sectional shape so that the plate on which the shear connector is formed is formed on the remaining shear connector, rather than being newly installed on the upper surface of the girder. It is machined to form a U-shape (see partial details) to accommodate the remaining shear connector inside. If the filling material is formed between the plate and the girder, even if the shear connection material of the existing girder is damaged and remains, the bridge bottom plate can be replaced without additional work. The plate may use an angle having a U-shaped cross section.
[58] After all, simply bends both ends of the plate of the connecting member has the advantage that it can be applied regardless of the presence of the shear connecting material remaining on the girder, the fourth embodiment is particularly advantageous for the existing bridges, but the new bridge The connecting member of Example 4 can be used. Furthermore, in the case of Example 1, Example 2, etc., it is natural that it can use also about new and existing bridge.
[59] <Bridge construction method using connection structure of precast bridge deck and girder>
[60] The bridge construction method can be divided into two types,
[61] First, the method 1 for constructing the bridge by installing the connecting members as described above in the existing bridge, and the second method for constructing the bridge by installing the new bridge.
[62] Method 1 includes removing a bridge deck connected to the girder from the existing bridge; And manufacturing and installing the precast bridge floor plate integrally formed at the factory or the site integrally formed with the connection member of Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4 on the girder.
[63] Method 2 includes the steps of: installing girders on bridge substructures, such as bridges, in new bridges; And manufacturing and integrally constructing a precast bridge bottom plate integrally formed with the connecting members of Embodiments 1 to 4 on the girder at a factory or a site.
[64] The most technical feature of the method of constructing the bridge in the above method 1 and method 2 is to install the bridge bottom plate on the existing bridge or the new bridge, but the bridge bottom plate in the factory the connection member 200a in Examples 1 to 4 , 200b, 200c, 200d, 200e, and 200f are used in advance.
[65] In other words, the bridge construction methods, in particular in the case of replacing the existing bridge deck plate is not necessary to install the girder, it is preferable to install the bridge by installing the bridge bottom plate using the above-described embodiment 4, the new bridge In this case, a girder may be provided, and the bridge bottom plate may be installed using the first to fourth embodiments described above to construct the bridge. Of course, if the connection member is pre-installed in the factory to the bridge bottom plate, which can be called the core technical idea of the present invention, even if there is a slight change in the configuration of the connection member according to the type of girder will belong to the technical scope of the present invention. .
[66] By breaking away from the existing structure of the precast bridge deck and the girder, by presenting the connection structure and connecting member between the bridge deck and the girder of various embodiments to be applied without limitation to existing bridges and new bridges, Improved workability, durability and economy, especially when joining cast bridge decks with multiple bridge girders.

权利要求:
Claims (12)
[1" claim-type="Currently amended] In new or existing bridges,
Precast bridge deck;
A connection member integrally formed with the bridge bottom plate at a connection portion of the bridge bottom plate and the girder, the connection member including a plate having a shear connection member protruding toward the girder; And
A girder formed corresponding to the connection member;
Connection structure of the precast bridge deck and girder comprising a.
[2" claim-type="Currently amended] The connection structure of the precast bridge deck and the girder according to claim 1, wherein a filling material such as concrete or mortar is further formed between the girder and the bridge bottom plate such that the connection member is included therein.
[3" claim-type="Currently amended] According to claim 1 or 2, The connecting member is a plate formed on the outer bottom surface of the bridge bottom plate; And
A shear connecting member projecting downwardly perpendicular to the plate;
Connection structure of the precast bridge deck and girder comprising a.
[4" claim-type="Currently amended] According to claim 1 or 2, The connecting member is a plate formed on the inner bottom surface of the bridge bottom plate hollow; And
A shear connector formed through the lower surface of the plate and the bridge bottom plate to protrude vertically downward;
Connection structure of the precast bridge deck and girder comprising a.
[5" claim-type="Currently amended] The connection structure of the precast bridge bottom plate and the girder according to claim 4, wherein a connection reinforcing plate having a hole formed therein so as to pass through the shear connecting material formed in the plate is further formed on the lower outer surface of the bridge bottom plate.
[6" claim-type="Currently amended] The method of claim 4, wherein when the connecting member is installed in an existing bridge, the ends of the plate are bent to form a space for accommodating the shear connector remaining on the existing girder so that the filler can be formed in the space. Connection structure of precast bridge deck and girders.
[7" claim-type="Currently amended] According to claim 1 or claim 2, The connecting member is a member inserted into the hollow inside the end of the bridge bottom plate, the end plate reinforcing end body is formed vertically through the shear connector material through-hole; And
A shear connector penetrating a hole for a shear connector previously formed in the bridge bottom plate so as to coincide with the through hole of the end body;
Connection structure of the precast bridge deck and girder comprising a.
[8" claim-type="Currently amended] The shear connector is coupled to the girder by fastening the nut at the end through the girder, or is embedded in the upper surface of the girder, is coupled to the girder is fastened to the sleeve reinforced with restraint bars Connection structure of precast bridge deck and girder.
[9" claim-type="Currently amended] Removing the bridge deck connected with the girder from the existing bridge; And
Integrally manufacturing a precast bridge deck in which a connecting member of claim 1 is integrally formed on the girder; And
Installing the bridge deck on a girder such that the shear connector remaining on the girder is included;
Bridge construction method comprising a.
[10" claim-type="Currently amended] Placing girders on bridge substructures, such as bridges, in new bridges; And
Manufacturing a bridge bottom plate made of a composite material in which the connecting member of claim 1 is integrally formed at the upper part of the girder, and constructing it integrally with the girder;
Bridge construction method comprising a.
[11" claim-type="Currently amended] The method of claim 9 or 10, Bridge construction method characterized in that it further comprises the step of forming a filling material such as concrete or mortar so that the girder and the connecting member is included therein;
[12" claim-type="Currently amended] The method of claim 9, wherein the connecting member in the step of installing the bridge bottom plate is
A plate-shaped plate formed on the outer bottom surface of the bridge bottom plate; And a shear connector protruding downwardly perpendicular to the lower surface of the plate.
A plate formed on the inner bottom surface of the bridge bottom plate hollow; A shear connector formed through the lower surface of the plate and the bridge bottom plate to protrude vertically downward; A connecting reinforcing plate having a hole formed therein so that the shear connecting material penetrates the outer lower surface of the bridge bottom plate; And
A member inserted into a hollow inside of an end portion of a bridge bottom plate, the end portion for bridge bottom plate reinforcement having a vertically formed shear connector through hole; A shear connector penetrating a hole for a shear connector previously formed in the bridge bottom plate to coincide with the through hole of the end body;
Bridge construction method, characterized in that any one of the connecting member including a.

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同族专利:

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公开号 | 公开日

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KR100519234B1|2005-10-06|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-11-22|Application filed by 한국건설기술연구원

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2002-11-22|Priority to KR20020072994A

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2004-05-31|Publication of KR20040044810A

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2005-10-06|Application granted

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2005-10-06|Publication of KR100519234B1

优先权:

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申请号 | 申请日 | 专利标题

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KR20020072994A|KR100519234B1|2002-11-22|2002-11-22|joint structure of precast bridge slab and girder and bridge construction method using the same|