KR101991765B1 - Structure of Disassemblable Symmetric FRP Deck Combinded with Hat-type Connector through Snap-fit Connection with Locking Device, and Bridge Deck Having such FRP Deck Structure, and Constructing Method of such Bridge Deck - Google Patents

Abstract

The present invention relates to an assembly structure of an FRP panel, a bottom plate having the same, and a construction method thereof, wherein an FRP panel is assembled by a snap-fit coupling structure using a protrusion coupling unit, whereupon a vertical connecting web plate of symmetrical and touching FRP panels is assembled to be connected in overall from the top end to the bottom end by means of a longitudinal bolt to be solidly integrated, thereby fundamentally preventing splaying of a connecting joint portion. Furthermore, the adjacent symmetrical FRP panels are assembled to be connected in the snap-fit coupling structure at an upper plate by using a cover type connecting panel. In addition, a connecting joint portion of the upper plate is provided with a configuration which is locked by means of an anchor-combined locking wedge which can effectively prevent a gap at the protrusion coupling unit from being splayed. Therefore, the entire bottom plate is completely integrated to be moved in a bidirectional plate structure, thereby improving structural stability when a surface road such as a vehicle is applied thereon. Moreover, the bottom plate is integrated in a longitudinal direction to eliminate a stepped protrusion in a driving direction, thereby providing an effect of enhancing ride comfort. Not only that, individual FRP panels are separated to enable a partial replacement, thereby improving efficiency in maintenance and management, and facilitating ease of assembly and disassembly for reuse.

Description

Technical Field [0001] The present invention relates to an assembly structure of a FRP panel having a snap-fit coupling and a panel detachable configuration using a symmetrical FRP panel and a cover-type connection panel, a bottom plate having the FRP panel, type Connector through Snap-fit Connection with Locking Device, and Bridge Deck Having such FRP Deck Structure, and Constructing Method of such Bridge Deck}

The present invention relates to a structure for assembling a symmetrical FRP (Fiber Reinforced Plastic / Fiber Reinforced Composite) panel composed of an open end portion and a closed end portion, a bottom plate having such an assembled structure, and a method for constructing such a bottom plate, Specifically, the FRP panel is assembled by snap-fit coupling using a protrusion coupling portion, wherein the FRP panel is formed as a symmetrical FRP panel having a symmetrical structure in the longitudinal direction, and the symmetrical FRP panels adjacent to each other are mechanically And the cover-type connecting panels made of the FRP panels are assembled and connected in a snap-fit structure at the same time to the symmetrical FRP panels arranged in succession, so that the symmetrical FRP panels By making all the sections of the panel close to the end face, the structural stability of the bottom plate made by the FRP panel is ensured. In addition, it has a snap-fit engagement locking configuration through an anchor combination locking wedge which can effectively prevent the projection coupling section for continuous FRP panel from being opened, so that it can resist the tensile force generated at the joint between the FRP panels FRP panel assembly, which facilitates disassembly for convenient maintenance and reuse by allowing partial replacement of individual FRP panels when disassembly or replacement is necessary for repair / reinforcement or reuse. Structure, a bottom plate having an assembling structure of such an FRP panel, and a method of constructing such a bottom plate.

A technique of snap-fitting a FRP panel has been developed by the inventors of the present invention and disclosed in Korean Patent No. 10-0981348, No. 10-0604251, No. 10-1298581, and the like.

FIG. 1 is a schematic exploded perspective view showing an example of a snap-fit connection of a conventional antisymmetric FRP panel, and FIG. 2 is a cross- There is shown a schematic cross-sectional view in accordance with the arrow CC in FIG. 1, which shows the assembled state, and FIG. 3 shows a schematic cross-sectional view in the crosswise direction, showing the assembled state after FIG.

As shown in the figure, a conventional antisymmetric FRP panel 400 includes a top plate 11, a bottom plate 12, and a baffle plate 13, so that a plurality of hollows 17 extend transversely in the lateral direction Sectional configuration. The first symmetrical FRP panel 400 has a first upward projecting engagement portion 451a protruded upward from an outer side of the outer side of the baffle plate 13 at one longitudinal side of the reverse symmetrical FRP panel 400, The extension portion 120 is formed with a second upward projecting engagement portion 451b. In the case of the conventional antisymmetric FRP panel 400, the first downward projection part 450a is formed on the upper extension part 110 extending in the longitudinal direction from the upper plate 11 on the other longitudinal side, And a second downward projection engaging portion 450b is formed on the outer surface of the bumper plate 13 of the first embodiment.

Accordingly, when the conventional antisymmetric FRP panels 400 are continuously arranged in a downward direction while being adjacent to each other, the first downward protrusion coupling portion 450a is inserted between the antisymmetrical FRP panels 400 and the first upward protrusion coupling portion 451a Fitted in a concave space formed in the side surface of the first downward protruding engaging portion 450a and the second upwardly projecting engaging portion 451b is fitted in a concave space formed in the side surface of the second downward protruding engaging portion 450b. ("Snap-fit connection") is made so that it has a continuous structure in the longitudinal direction. Such a snap-fit coupling is disclosed in detail in Korean Patent Publication No. 10-1298581, and a repetitive description thereof will be omitted.

In the snap-fit connection of the retro-symmetrical FRP panel according to the prior art, it is possible to construct a bottom plate such as a bridge slab or the like by continuously arranging a plurality of anti-symmetric FRP panels sequentially by using the snap- The protrusion coupling portion may be opened at the time of operation, so that an undesired dislocation and dropout of the antisymmetric FRP panel may occur. Conventionally, in order to prevent this, the portion where the snap-fit engagement of the projection-engaging portion is made is adhered with an adhesive. However, in a car pedestrian bridge in which a heavy vehicle load repeatedly acts, There is a possibility that the reverse symmetric type FRP panel will be detached and missing, thereby causing a problem in the structural safety of the bridge. 4, when the bonding strength is weakened in a state where the second downward projecting portion 450b and the second upwardly projecting portion 451b are snap-fitted to each other according to the prior art, There is shown a schematic lateral cross-sectional view showing a state in which the projection engaging portion 450b is deformed. As shown in FIG. 4, as the FRP panel is flexed and deformed due to the action of the vertical load, the second downward protrusion coupling part 450b moves to the empty space and the second downward protrusion coupling part 450b and the anti- The snap-fit connection is loosened and the second upwardly projecting engagement portion 451b may inadvertently fall out. The first upwardly projecting engagement portion 450a moves to the empty space even in the snap-fit engagement between the first downward projecting engagement portion 450a and the first upwardly projecting engagement portion 451a depending on the direction of action of the load, The same phenomenon can occur.

On the other hand, it is necessary to replace the symmetrical FRP panel for maintenance or other reasons, or dismantle the entire panel for reuse. FIG. 5 is a schematic cross-sectional view showing a state in which a plurality of anti-symmetric FRP panels are continuously assembled in the longitudinal direction according to the prior art of FIGS. 1 to 3. FIG. In the case of the conventional antisymmetrical FRP panel, one side of the already installed antisymmetric FRP panel is sequentially assembled and arranged in a longitudinal direction (in the direction of arrow X in FIG. 5) . Therefore, when the "anti-symmetrical FRP panel to be replaced" (indicated by shading in FIG. 5) which is to be replaced due to breakage or other reasons exists in the middle of the bottom plate, It is necessary to separate the counter-symmetrical FRP panels in a sequential manner, which is very cumbersome and involves a costly and time-consuming work, and thus it is practically impossible to separate and replace the reverse-symmetrical FRP panels existing in the middle of the bottom plate .

Korean Patent Registration No. 10-0981348 (2010. 09. 10. Announcement). Korean Patent Registration No. 10-0604251 (2006. 07. 28. Announcement). Korean Patent Registration No. 10-1298581 (issued on March 23, 2013).

SUMMARY OF THE INVENTION The present invention has been developed in order to overcome the limitations of the prior art as described above, and it is an object of the present invention to provide a method and apparatus for continuously preventing the spreading of FRP panels by continuously arranging a plurality of symmetrical FRP panels, The FRP panel can be easily assembled in a snap-fit manner, but the snap-fit connection can be loosened to effectively prevent the FRP panel from being unintentionally separated from the FRP panel. As a result, Directional plate structure with respect to both the direction and the transverse direction.

It is still another object of the present invention to provide a technique for easily removing a FRP panel by easily accessing a desired FRP panel without removing the entire bottom plate if necessary.

According to an aspect of the present invention, there is provided an assembling structure of an FRP panel in which a first panel made of FRP panels, a cover-type connecting panel, and a second panel are sequentially assembled and connected in a longitudinal direction, The first panel and the second panel have a transverse cross-sectional configuration, which is composed of an upper plate, a lower plate, and a bend plate and in which a plurality of hollows extend longitudinally in the transverse direction, A longitudinally upwardly extending connection bumper plate is integrally formed at a longitudinal end portion of the extension portion, a convex upward projecting portion is formed at an upper end of the connection bumper plate, and a concave upward projecting portion is formed at each of the longitudinally outermost bumper plates, ; The cover-type connecting panel is made of FRP plate member, and the end downward protruding engaging portions are formed integrally with the downward protruding engaging portions at both longitudinal ends thereof, and the central downward protruding engaging portion is formed at the center bottom face thereof; The first panel and the second panel are assembled on the support member so as to be in close contact with each other so as to be in close contact with each other, and the first and second panels are integrated by being fastened and fixed through the two connection bolt plates, The cover-type connecting panel is pressed down between the first and second panels arranged in a row so that the convex upward protruding engaging portion on the upper end of the connecting abdomen plate and the central downward protruding engaging portion on the cover-like connecting panel are snap- The concave upward protrusion engaging portion provided on the outermost baffle plate of each of the two panels and the end downward protruding engaging portion of both end portions of the cover-type connecting panel are snap-fitted to each other so that the first and second panels and the cover-type connecting panel are integrated; And the first and second panels can be separated upward from the support member only by vertically lifting up and separating the cover-type connection panel.

According to another aspect of the present invention, there is provided an FRP panel including a first panel, a lid-type connecting panel, and a second panel sequentially arranged in a longitudinal direction of the FRP panel, Wherein the first panel, the cover-type connecting panel, and the second panel are assembled and coupled by the bottom plate.

Further, in order to achieve the above object, the present invention provides a method of constructing the bottom plate of the present invention.

According to the present invention, when integrally assembling the symmetrical FRP panels by the snap-fit coupling using the protrusion coupling portions, the vertically extending connection baffle plates abutting each other in the adjacent symmetrical FRP panels at the open end portions of the symmetrical FRP panels adjacent to each other, The longitudinally symmetrical FRP panels are rigidly assembled and connected in the longitudinal direction by mechanically connecting the front and the rear ends of the connection baffle plate by mechanical bolts using longitudinal bolts. It is possible to prevent the occurrence of widening at the source.

In addition, according to the present invention, all the sections of the continuously arranged symmetrical FRP panel are formed as closed ends by simultaneously assembling and connecting the cover-type connecting panels to the open end surfaces of adjacent symmetrical FRP panels in a snap- The bottom plate made by the FRP panel has the advantage of achieving excellent structural stability.

In particular, according to the present invention, a snap-fit connection can be made between the symmetrical FRP panel and the cover-type connecting panel at the position where the protruding engaging portion of the cover-type connecting panel is snap- And in this case, a large resistance force is exerted against the tensile force generated at the joint between the symmetrical FRP panel and the cover-type connection panel.

In the present invention, since the symmetrical FRP panel and the cover-type connecting panel are firmly connected to each other in the longitudinal direction, they are continuous in the longitudinal direction as well as in the transverse direction in which the FRP panel is originally manufactured, And it has a structural advantage in that it can effectively resist the bi-directional bending moment by exerting the stress dispersion effect when the load such as the vehicle is applied.

Furthermore, since the longitudinally-coupled continuous structure between the longitudinal FRP panels implemented on the bottom plate according to the present invention does not cause longitudinal steps, when used as a bottom plate of a bridge, the ride feeling in the course of driving the vehicle is increased, (In a direction perpendicular to the vehicle running direction) of the throttle shaft.

Further, in the bottom plate of the present invention, the symmetrical FRP panel and the cover-type connection panel are separated in the reverse order of the order and the order of assembling the symmetrical FRP panel and the cover-type connection panel, Therefore, the bottom plate made of FRP panels can be more efficiently maintained, and the bottom plate can be reused after re-assembly after disassembly.

1 is a schematic exploded perspective view showing an example of coupling a conventional antisymmetric FRP panel by a snap-fit connection method.
Fig. 2 is a schematic cross-sectional side view along the arrow CC in Fig.
Fig. 3 is a schematic cross-sectional view showing the assembled state after that of Fig. 2; Fig.
FIG. 4 is a schematic cross-sectional view showing a state in which the second downward projection engaging portion is deformed due to a downward load in a snap-fit engagement state between protruding engaging portions in a conventional anti-symmetric FRP panel.
FIG. 5 is a schematic cross-sectional view showing a state in which a plurality of anti-symmetric FRP panels are continuously assembled in the longitudinal direction according to the prior art of FIGS. 1 to 3. FIG.
6 is a schematic cross-sectional side view of a symmetrical FRP panel according to the present invention.
FIG. 7 is a schematic exploded perspective view showing an example in which symmetrical FRP panels according to the present invention shown in FIG. 6 are continuously arranged and then integrated using a cover-type connection panel.
8 is a schematic cross-sectional side view in accordance with arrow GG in Fig.
Fig. 9 is a schematic assembled perspective view showing a state in which two symmetrical FRP panels are successively integrated by a cover-like connecting panel following the state of Figs. 7 and 8. Fig.
10 is a schematic cross-sectional side view in accordance with arrow KK in Fig.
11 is a schematic lateral cross-sectional view corresponding to FIG. 10 using a symmetrical FRP panel according to another embodiment of the present invention, the change in the shape and the number of hollows in the lateral direction.
Figure 12 is a schematic enlarged view of the circle R portion of Figure 10;
13 is a schematic partial enlarged perspective view of the circle H portion of FIG.
14 is a schematic assembly view showing a state in which an anchor combination locking wedge is inserted into a wedge groove to form the locking configuration shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 6 is a schematic cross-sectional view of a symmetrical FRP panel according to the present invention. FIG. 7 is a cross-sectional view of the symmetrical FRP panel according to the present invention shown in FIG. A schematic exploded perspective view is shown showing an example of integrating the light source unit 10 and a schematic transverse cross-sectional view according to the arrow GG in Fig. 7 is shown in Fig. 9 is a schematic assembled perspective view showing a state in which two symmetrical FRP panels are successively integrated by a cover-type connecting panel following the state of FIGS. 7 and 8. FIG. 10 shows an arrow KK A cross-sectional schematic view according to FIG. Fig. 11 shows a schematic lateral cross-sectional view corresponding to Fig. 10 using a symmetrical FRP panel according to another embodiment of the present invention, which changes the shape and number of the hollows in the lateral direction. Figure 12 shows a schematic enlarged view of the circle R portion of Figure 10. The symmetrical FRP panels, which are arranged adjacent to each other for convenience, and which are connected to each other by the snap-fit connection of the cover-type connection panel, are hereinafter referred to as "first panel 101" and "second panel 102", respectively. When all the FRP panels are collectively referred to as "symmetrical FRP panel (100)"

The symmetrical FRP panel 100 constituting the assembling structure of the FRP panel according to the present invention is composed of the top plate 11, the bottom plate 12 and the baffle plate 13 as shown in FIG. 6, The lower plate 12 has longitudinally extending lower extension portions 120 and longitudinally extending lower extension portions 120 on both sides of the lower plate 12, And a "convex" upward protruding engaging portion 151b is formed at an upper end of the connecting abdomen plate 600. As shown in FIG. The upper end of the outer side of each of the baffle plates (outermost baffle plates) located on the outer sides of both longitudinal sides of the baffle plate of the symmetrical FRP panel 100 is provided with a "concave" upwardly projecting engagement portion 151a. In the case of the concave upward protrusion coupling portion 151a provided in the bell plate 13, a concave space is formed between the concave upward convex coupling portion 151a and the outer side surface of the bell plate 13, The convex upward protruding engaging portion 151b protrudes upward but there is no concave space on both sides. Therefore, the term "convex" is added to distinguish the concave upward protruding engaging portion 151a from the concave upward protruding engaging portion 151a .

The symmetrical FRP panel 100 of the present invention having a cross sectional configuration in the transverse direction has a symmetrical shape in the longitudinal direction and includes a top plate 11, a bottom plate 12, and a baffle plate 13, And the concave upward protruding engaging portion 151a and the convex upward protruding engaging portion 171 are formed in the lower end of the lower protruding portion 171. The portion of the lower protruding portion 17, 151b corresponds to the " open face portion ". The symmetrical FRP panel 100 of the present invention may have a trapezoidal shape in which the hollow 17 has a trapezoidal shape as shown in FIGS. 6 to 10, but it may have a rectangular or square shape as in the embodiment illustrated in FIG. . That is, in the symmetrical FRP panel 100 of the present invention, the lateral shape of the hollow 17 can be formed of various shapes of "polygons ", and therefore, &Quot;, as shown in Fig. Also, the number of the hollows 17 in the symmetrical FRP panel 100 of the present invention may be variously changed. The embodiment illustrated in Fig. 11 differs from the embodiment of Figs. 6 to 10 only in the shape and number of the hollows 17, and the other constructions and effects are the same.

In the present invention, the first panel 101 and the second panel 102 formed of the symmetrical FRP panel 100 having the above-described configuration are arranged continuously in the longitudinal direction, and the cover-type connection panel 500 is installed, The first panel 101, the cover-type connecting panel 500, and the second panel 102 are sequentially integrated with each other to form a continuous bottom plate.

As shown in FIGS. 7 to 12, the cover-type connecting panel 500 is formed of a cover-shaped FRP plate member (cover plate). The cover plate is provided at both longitudinal ends thereof with downward projecting engaging portions 550b And a central downward projecting engaging portion 550a is formed at the center bottom surface of the cover plate.

In order to construct the bottom plate by assembling and connecting the first panel 101 and the second panel 102 with the cover-type connecting panel 500 according to the embodiment shown in FIGS. 6 to 12, first, the first panel 101 Is disposed on the support member 200 such as a girder. At this time, the first panel 101 is disposed so that the lower extension part 120 is in close contact with the support member 200, and the fixing bolt 210 is fixed to the lower extension part 120 at the position where the support member 200 exists. And is fixed to the support member 200. The second panel 102 is disposed on the support member 200 and is fixed to the support member 200 in the same manner as the first panel 101. [ In this case, the first panel 101 and the second panel 102 are continuously arranged so as to be in close contact with each other so as to penetrate the two connection baffle plates 600 closely contacting each other as shown in FIG. 12 The longitudinal bolt 70 is installed and fastened with a nut to firmly integrate the connection damper plate of the first panel 101 and the connection damper plate 600 of the second panel 102. At this time, it is preferable that the longitudinal bolts 70 are fastened in plural through the entire vertical length of the connection baffle plate 600 for more solid integration. The neighboring symmetrical FRP panels (the first panel and the second panel) are more firmly and integrally connected to each other through the assembly coupling between the connection baffle plates 600 by fastening and fixing the longitudinal bolts 70, And thus the structural stability of the bottom plate according to the present invention formed by the continuous connection of the symmetric FRP panels can be remarkably improved.

Particularly, the joining between the connection baffle plates using the longitudinal bolts in the open end face portion according to the present invention and thus the integration of the symmetrical FRP panels of both sides are performed in the reverse symmetrical FRP panel according to the prior art as shown in Figs. 1 to 3 It is not possible at all. In the case of the conventional antisymmetric FRP panel, since the upward projecting engaging part is engaged with the downward projecting engaging part between neighboring panels, a closed end face shape in which the upper part of the second upward projecting engaging part 451b existing in the lower extending part is covered The operator's hands can not be accessed from the source, so that it is impossible to firmly integrate the bolts with the mechanical bolt as in the present invention. On the other hand, in the symmetrical FRP panel of the present invention, the outermost bending plate 13 of the closed end facing each other in the symmetrical FRP panel adjacent to each other in the longitudinal direction is inclined and opened, and the connection bending plate 600 is present So that it is possible to secure a sufficient working space for the operator to easily approach and assemble in the state before the cover-type connecting panel 500 is installed. Therefore, The present invention is advantageous in that not only the mechanical assembly coupling is performed but also the assembly coupling operation can be performed very easily, thereby greatly improving the efficiency of the assembly and assembling operation. Particularly, in the embodiment illustrated in the drawings, since the outermost baffle plate 13 is inclined, it is possible to secure a wide work space in the longitudinal direction between the first panel 101 and the second panel 102 . In addition, since the part joined and assembled with the vertical bolt 70 is covered by the lid-type connecting panel 500, the joint state of the longitudinal bolt 70 is not visible at all from the outside, It is possible to maintain a beautiful condition. It has been described that the second panel 102 is fixed on the support member 200 and the joining operation of the first and second panels 101 and 102 using the longitudinal bolts 70 is performed in the connection wing plate 600 The first and second panels 101 and 102 are coupled with each other by the longitudinal bolts 70 in the connection baffle plate 600 and then the fixing bolts 210 are fixed The second panel 102 may be fixed to the support member 200 by passing through the lower extension 120 of the second panel 102. [

After the continuous arrangement of the first and second panels 101 and 102 and the integral bonding operation using the longitudinal bolts 70 in the connection baffle plate 600 are completed, (101) and the second panel (102). That is, in a state where the cover-type connecting panel 500 is positioned so that the end-downward projection engaging portion 550b faces the first and second panels 101 and 102, The central downward protrusion coupling portion 550a is opened to the both sides in the longitudinal direction due to the FRP characteristic so that the open space of the central downward protrusion coupling portion 550a is opened and the upper end of the connection top plate 600 of the first panel 101, The convex upward projecting engagement portion 151b of the second panel 102 and the convex upward projecting engagement portion 151b of the upper end of the connection baffle plate 600 of the second panel 102 are simultaneously inserted into the central downward projecting engagement portion 550a, And the end downward protrusion engaging portion 550b of the cover-type connecting panel 500 is engaged with the first panel 101 and the second panel 102 Fit into the concave upward projecting engagement portion 151a provided on each outermost baffle plate 13, . In this way, the lid-type connecting panel 500 is positioned between the first and second panels 101 and 102 so that the first and second panels 101 and 102 and the lid-type connecting panel 500 are engaged with the snap- The upper surface of the first and second panels 101 and 102 and the upper surface of the lid-type connecting panel 500 are continuously formed as flat surfaces, so that all sections of the continuously arranged symmetrical FRP panel are formed into a closed end surface shape .

Meanwhile, in the present invention, in the joint where the first and second panels 101 and 102 and the cover-type connecting panel 500 are joined in a snap-fit manner, the snap-fit joint is loosened, A coupling structure of the following locking structure can be formed. 13 shows a state in which the concave upward protruding engaging portion 151a of the first panel 101 and the end downward protruding engaging portion 550b of the cover-type connecting panel 500 are snap- 12 shows a schematic partial enlarged perspective view of the circular H portion and FIG. 14 shows a state in which the anchor combination lock wedge 2 is inserted into the wedge groove 20 to form the locking configuration shown in FIG. 13 A schematic assembly view is shown.

In the present invention, a wedge groove 20 is formed in which concave portions of the symmetrical FRP panel 100 and the cover-type connection panel 500 are recessed in the connecting portion where the symmetrical FRP panel and the cover- And an anchor combination lock wedge 2 extending in the transverse direction is inserted into the wedge groove 20. That is, as shown in FIG. 14, at positions where the symmetrical FRP panel 100 and the lid-type connecting panel 500 are in contact with each other in the longitudinal direction, they are concavely recessed in such a manner that the width of the grooves gradually increases in the depth direction of the grooves The wedge groove 20 is formed. The anchor combination lock wedge 2 having a transverse sectional shape corresponding to the lateral shape of the communicated wedge groove 20 and elongated in the transverse direction in the state in which the wedge groove 20 is in communication with the anchor combination wedge 2, And inserted between the symmetrical FRP panel 100 and the lid-type connecting panel 500. As shown in Fig.

The anchor combination lock wedge 2 has a shape in which a wedge structure having an elongated shape and an anchor structure is combined as shown in the figure. The anchor combination wedge 2 has a symmetrical FRP panel 100, And the cover-type connection panel 500 are more firmly pressed against each other, and thus the symmetrical FRP panel 100 and the cover-type connection panel 500 are more firmly pressed against each other So that it is possible to integrally prevent the spreading occurring at the coupling joint portion of the conventional snap-fit deck. In the present invention, the anchor combination lock wedge 2 is preferably made of metal. Since the reinforcing fiber is disposed mainly in the transverse direction in the drawing forming process of the FRP panel, the FRP panel hardly exhibits a large resistance against the longitudinal stretching in the direction of the wedge cross section. In consideration of the material characteristics of the FRP panel, it is preferable that the anchor combination lock wedge 2 is made of a metal which exhibits a large resistance against the horizontal tensile force in the longitudinal direction. However, the material of the anchor combination lock wedge 2 is not limited to metal, but other materials capable of exhibiting sufficient resistance against the horizontal tensile force in the longitudinal direction may be used.

13 and 14 illustrate a portion where the first panel 101 and the cover-type connection panel 500 are coupled. However, the integrated configuration through the anchor combination lock wedge 2 is not limited to the second panel 102, A connection in which the concave upward projecting engagement portion 151a of the second panel 102 and the end downward projecting engagement portion 550b of the cover type connection panel 500 are coupled to each other, The same can be applied to the negative part.

In the bottom plate according to the present invention having the above-described assembling structure, the open end face of the symmetrical FRP panel 100 disposed adjacent to the bottom panel is rigidly assembled and connected to the cover panel 500, The plates are all formed in a closed-ended shape. Therefore, when the bottom plate of the present invention is used as a bridge deck, it has a stable structure capable of very effectively resisting bending moment, shearing force, twisting, and the like caused by self weight acting on the upper portion and live weight of a vehicle, , It is possible to quickly and easily assemble and assemble the FRP panel quickly and easily at the open end portion outside the FRP panel, so that the convenience of construction and the economical efficiency are demonstrated.

Particularly, in the bottom plate of the present invention, since the FRP panel is firmly connected and continuous in the longitudinal direction, the FRP panel corresponds to the direction in which the FRP panel is produced by the inward molding, The entire bottom plate forms a complete two-way plate structure, so that the bottom plate behaves in two directions in the direction of the strong axis and the weak axis in the case of the upper load, and the structural stability is exhibited by the stress dispersion effect do. In addition, the longitudinally integrated continuous structure formed on the bottom plate of the present invention eliminates the step in the vehicle running direction to enhance the ride feeling and also to prevent lateral cracking of the asphalt pavement.

If the work is performed in the reverse order, reversing the procedure of the above-described method of constructing the bottom plate of the present invention, the symmetrical FRP panel and the cover-type connecting panel can be easily disassembled, do. That is, after the cover-type connecting panel 500 is lifted up and separated, the vertical bolts 70 between the first and second panels 101 and 102 are disassembled and the fixing bolts 210 are disassembled, 101 and 102 in the order of operation such as separation from the support member 200, the symmetrical FRP panel requiring replacement or repair can be easily separated from the cover-type connection panel. Through this, it is possible to perform the maintenance work such as disassembly and replacement of the FRP panel for maintenance and repair very efficiently after constructing the bottom plate by using the FRP panel. Through these advantages, It is possible to use the bottom plate of the present invention very effectively even in bridges requiring assembly, disassembly and separation, and repeated reuse such as emergency recovery bridges, temporary bridges for construction, and military operation bridges in the same disaster.

Meanwhile, when the bridge deck is constructed using the conventional reversed symmetrical FRP panel having high sectional height shown in Figs. 1 to 3, it is possible to secure a secure shear joint interval when connecting the bottom plate and the girder (support member) There is a limitation in that the interval between the fixing bolts 210 can not be widened in order to make each of the antisymmetric FRP panels. For this reason, when each antisymmetric FRP panel is manufactured, its longitudinal width is limited to a maximum of two hollows as shown in FIG. There is no other choice. However, in the case of the symmetrical FRP panel according to the present invention, the portion formed by the lower extension portion 120, the connection baffle plate 600, the concave upward protrusion coupling portion 151a and the convex upward protrusion coupling portion 151b is " Since the worker approaches the open end face of the symmetrical FRP panel 100 at the position where the support member 200 is present and the inclined outermost side end plate 13 of the symmetrical FRP panel 100, And the hand may be inserted into the hollow 17 in the closed end state through the work hole to fix the additional fixing bolts 210 in the hollow 17 to the supporting member 200. [ Of course, as described above, in the open end portion of the symmetrical FRP panel according to the present invention, the operator can freely install the fixing bolt 210 at the position where the support member 200 exists through the operation in the open space. According to the present invention, the spacing between the symmetrical FRP panel and the support member can be made shorter than that of the prior art. Accordingly, in the present invention, four hollows It is possible to manufacture and use a large-sized FRP panel having a greater width in the longitudinal direction. When the width of the FRP panel is increased in the vertical direction, the number of FRP panels required in the longitudinal length of the entire bottom plate is reduced, and the number of joints between the FRP panels is also reduced, Not only the construction efficiency can be improved but also the air can be greatly shortened.

2: Lock wedge
20: wedge groove
101: first panel
102: second panel
500: Cover-type connecting panel
600: connection abdomen plate

Claims (4)

An assembling structure of an FRP panel in which a first panel 101 made of an FRP panel, a cover-type connecting panel 500, and a second panel 102 are assembled and connected in a state in which they are sequentially arranged in a longitudinal direction,
The first panel 101 and the second panel 102 are formed of a top plate 11, a bottom plate 12 and a baffle plate 13 so that a plurality of hollows 17 extend in the transverse direction, And a lower extension 120 is provided on both sides in the longitudinal direction of the lower plate 12 and a vertically upward connection bending plate 600 is integrally formed on the longitudinal end of each lower extension 120, The symmetrical FRP panel 100 is provided with a convex upward protrusion coupling portion 151b at the upper end of the baffle plate 600 and a concave upward protrusion coupling portion 151a at the longitudinal outermost baffle plate 13, ;
The longitudinally outermost baffle plates 13 of the first panel 101 and the second panel 102 are inclined;
The cover-type connecting panel 500 is made of FRP plate member, and the end downward protruding engaging portions 550b are formed integrally with the downward protruding engaging portions 550b at both longitudinal ends thereof and the central downward protruding engaging portion 550a is formed at the center lower surface ;
The first panel 101 is disposed such that the lower extension 120 of the first panel 101 is in close contact with the support member 200 and the fixing bolt 210 is fixed to the first panel 101 at a position where the support member 200 is present. The lower extension 120 of the second panel 102 is inserted into the support member 200 after the first panel 101 is fixed to the support member 200 through the lower extension 120 of the panel 101, The second panel 102 is continuously disposed on the first panel 101 so that the connection panel 200 of the second panel 102 is in close contact with the connection panel 200 of the first panel 101, The fixing bolt 210 is passed through the lower extension 120 of the second panel 102 at a position where the supporting member 200 is present and the second panel 102 is fixed to the supporting member 200, The first panel 101 and the second panel 102 are connected to each other by two connecting bobbins 600 which are assembled on the supporting member 200 so that the connecting bobbins 600 are in close contact with each other, So that the first and second Null (101, 102) are integrated;
The cover-type connecting panel 500 is pressed downward between the first and second panels 101 and 102 which are continuously arranged to be engaged with the convex upward projecting engaging portion 151b at the upper end of the connecting- The central downwardly projecting engagement portion 550a of the panel 500 is snap-fit coupled and the concave upward projecting engagement portion 151a provided on the outermost bending plate 13 of each of the first and second panels 101 and 102 The first and second panels 101 and 102 and the cover-type connecting panel 500 are integrated by snap-fitting the end-portion downward projection engaging portions 550b at both ends of the cover-type connecting panel 500;
The first and second panels 101 and 102 can be separated upward from the support member 200 only by vertically lifting up and separating the cover-type connection panel 500;
The concave recessed wedge grooves 20 are formed in each of the connecting portions where the symmetrical FRP panel and the cover-type connecting panel are in contact with each other. The wedge grooves 20 have a shape in which the width of the groove gradually increases in the depth direction of the groove ;
The anchor combination lock wedge 2 having a transverse sectional shape corresponding to the lateral shape of the communicated wedge groove 20 and elongated in the transverse direction in the state in which the wedge groove 20 is in communication with the anchor combination wedge 2, Is inserted into the wedge groove 20 and is disposed between the symmetrical FRP panel and the cover-type connecting panel 500. The lateral cross-sectional shape of the anchor combination lock wedge 2 is such that the width of the groove in the depth direction of the groove The wedge grooves 20 having a concave depressed shape gradually increasing in size are opposed to each other so as to form a wedge structure and an anchor structure in which the anchor combination lock wedge 2 is combined with the symmetrical FRP panel The FRP panel and the cover-type connecting panel 500 exhibit resistance against a longitudinal horizontal tensile force that operates to separate the cover-type connecting panels 500 from each other, thereby strengthening the integration between the symmetrical FRP panel and the cover- Assembly structure of panels.
delete A first panel 101 made of a FRP panel, a cover-type connecting panel 500, and a second panel 102 are sequentially arranged in a longitudinal direction to be assembled and connected to each other,
A bottom plate characterized by having an assembling structure of the FRP panel according to claim 1.
A method for constructing a bottom plate having a first panel (101) made of FRP panels, a cover-type connecting panel (500), and a second panel (102) assembled and connected in a sequential arrangement in a longitudinal direction,
The first panel 101 and the second panel 102 are formed of a top plate 11, a bottom plate 12 and a baffle plate 13 so that a plurality of hollows 17 extend in the transverse direction, And a lower extension 120 is provided on both sides in the longitudinal direction of the lower plate 12 and a vertically upward connection bending plate 600 is integrally formed on the longitudinal end of each lower extension 120, A symmetrical FRP panel 100 having convex upward protrusion engaging portions 151b formed at the upper end of the baffle plate 600 and concave upward protruding engaging portions 151a formed at the longitudinal outermost baffle plate;
The longitudinally outermost baffle plates 13 of the first panel 101 and the second panel 102 are inclined;
The cover-type connecting panel 500 is made of FRP plate member, and the end downward protruding engaging portions 550b are formed integrally with the downward protruding engaging portions 550b at both longitudinal ends thereof and the central downward protruding engaging portion 550a is formed at the center lower surface ;
The first panel 101 and the second panel 102 are assembled and installed on the support member 200 in such a manner that the connection bellows plates 600 are in close contact with each other, The first panel 101 is disposed in such a manner that the second panel 120 is in close contact with the support member 200 and the fixing bolt 210 is fixed to the lower extension 120 of the first panel 101 The lower extension 120 of the second panel 102 is brought into close contact with the support member 200 and the second panel 102 is brought into close contact with the second panel 102, The second panel 102 may be continuously disposed on the first panel 101 such that the connection bellows 600 is in close contact with the connection bellows 600 of the first panel 101, The first panel 101 and the second panel 102 are fixed in such a manner that the fixing bolt 210 is passed through the lower extension 120 of the second panel 102 to fix the second panel 102 to the support member 200. [ (102) are continuously installed, and the two connection wedge plates (6 00) by integrating the first and second panels 101 and 102 by fastening and fixing the longitudinal bolts 70 so as to penetrate the first and second panels 101 and 102; And
The lid-type connecting panel 500 is disposed between the first and second panels 101 and 102 which are continuously arranged and pressed down so that the protruding upward protruding engaging portion 151b at the upper end of the tightly connected connection baffle plate 600 and the lid- Fitting the central downwardly projecting engagement portion 550a of the connection panel 500 and the concave upwardly projecting engagement portion 151a provided on the outermost bending plate 13 of each of the first and second panels 101 and 102, And integrating the first and second panels 101 and 102 with the cover-type connecting panel 500 by snap-fitting the end-portion downward protrusion engaging portions 550b at both ends of the cover-type connecting panel 500 Thereby forming a bottom plate.
The first and second panels 101 and 102 can be separated upward from the support member 200 by lifting the cover-type connection panel 500 vertically upward and separating it.
The concave recessed wedge grooves 20 are formed in each of the connecting portions where the symmetrical FRP panel and the cover-type connecting panel are in contact with each other. The wedge grooves 20 have a shape in which the width of the groove gradually increases in the depth direction of the groove ;
The anchor combination lock wedge 2 having a transverse sectional shape corresponding to the lateral shape of the communicated wedge groove 20 and elongated in the transverse direction in the state where the wedge groove 20 is in communication with the anchor combination wedge 2, To the wedge groove (20) so as to be disposed between the symmetrical FRP panel and the cover-type connecting panel (500);
The cross-sectional shape of the anchor combination lock wedge 2 is a wedge structure in which the wedge grooves 20, which are recessed and recessed in such a manner that the width of the groove gradually increases in the depth direction of the groove, The anchor combination lock wedge 2 exhibits a resistance against the longitudinal horizontal tensile force that operates to separate the symmetrical FRP panel and the cover type connection panel 500 from each other so that the symmetrical FRP Wherein the reinforcing member is integrally formed with the panel-type connecting panel (500).

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