KR200423086Y1 - Precast Concrete Barrier and Barrier System of Bridge - Google Patents

Abstract

The present invention relates to a precast firewall member and a bridge structure of a bridge using the same. The precast firewall member constituting the firewall is made in advance before the construction of a bridge. An object of the present invention is to provide a barrier structure in which a barrier is integrated with a bridge deck when constructing a barrier using a precast barrier member and a precast barrier member configured to be completed.

The precast security barrier member of the present invention for achieving the above object is a reinforced concrete structure, a groove is formed in the bottom surface in the longitudinal direction, a portion of the reinforcement located inside protrudes into the groove, It is characterized in that the pour in communication with the outer surface of the structure is formed.

In addition, according to the barrier structure of the present invention, the precast barrier member, the bridge bottom plate protruding a part of the reinforcing bar located inside the boundary line to be constructed, the reinforcement of the bridge deck and the precast security barrier A reinforcing bar passing through the overlapped portions in a state where the rebars of the members cross each other, and a filler filled inside a groove of the precast security barrier member, wherein the plurality of precast security barrier members are disposed along the boundary line to form a security barrier. It is a technical feature to do.

Precast Concrete Firewall, Fences, Fillings

Description

Precast Concrete Barrier Structure and Bridge Barrier Structure Using It {Precast Concrete Barrier and Barrier System of Bridge}

1 is a perspective view showing a precast firewall member according to a first embodiment of the present invention,

FIG. 2 is a cross-sectional view of a-a 'line shown in FIG. 1,

3 is a cross-sectional view taken along the line b-b 'of FIG. 1.

4 is a perspective view showing a state in which the precast security barrier member shown in FIG. 1 is constructed as a security barrier of a bridge;

5 is a cross-sectional view in the longitudinal direction showing the firewall structure shown in FIG.

FIG. 6 is a schematic view showing the arrangement and assembly relationship of the reinforcing bars of the precast security barrier member and the bridge deck shown in FIG.

7 is a perspective view showing a precast firewall member according to a second embodiment of the present invention.

8 is a perspective view showing a precast firewall member according to a third embodiment of the present invention,

9 is a longitudinal sectional view showing a state in which prestressing is applied to the precast firewall member shown in FIG. 8.

10 is a perspective view showing a precast firewall member according to a fourth embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: precast firewall member

101, 211, 221: rebar 110: groove

113: filling material 115: pouring

117: shear key 119: shear key groove

120: elastic rubber 130: duct

133: sheath 140: open area

200: firewall 210: bridge deck

The present invention relates to a precast barrier member and a barrier structure of a bridge using the same, and in particular, the bridge bottom plate and the barrier wall are firmly integrated with a simple connection at the construction site by using a precast barrier member constituting a barrier such as a bridge. The present invention relates to a precast barrier member and a barrier structure of a bridge using the same.

In general, barriers are installed on both sides of the bottom plate of the bridge to prevent the vehicle from being separated by collision. Conventionally, when the bridge bottom plate is mounted on the alternating bridge and the pier or the girder and the bridge is almost completed, the reinforcing bar is placed and assembled at the edge of the bridge bottom plate, and after the formwork is installed, the concrete is poured to cure the protective wall.

However, if the construction of the protective wall in the field as in the prior art, the time to complete the bridge is long, there is a disadvantage that the work cost increases with the disadvantage that the workability is poor, and the construction cost increases.

The present invention was developed in order to solve the problems of the prior art as described above, by pre-fabricating the security barrier as a precast security barrier member, by assembling and integrating firmly with the floor plate in the field, by constructing the security barrier in the field as described above The purpose is to be able to solve the problems caused by the.

In addition, in constructing a barrier of a bridge using such a precast barrier member, an object thereof is to provide a barrier structure of a bridge in which the precast barrier member can be integrally formed with the bridge deck.

The precast security barrier member of the present invention for achieving the above object is a precast reinforced concrete structure, a groove is formed in the bottom surface in the longitudinal direction, a portion of the reinforcement located inside protrudes into the groove, Technical features that the pouring hole is formed in communication with the groove and the outer surface of the structure.

In addition, according to a preferred embodiment of the present invention, the shear key is vertically formed at one end of the length in the longitudinal direction of the reinforced concrete structure, the shear key groove corresponding to the shear key is formed at the other end.

In addition, according to a preferred embodiment of the present invention, the elastic rubber is attached to the bottom surface is formed.

In addition, according to a preferred embodiment of the present invention, the duct is located in the longitudinal direction on the upper end of the reinforced concrete structure.

In addition, according to a preferred embodiment of the present invention, the lower end portion of the reinforced concrete structure is open so that the reinforcing bar protruding inside the groove is exposed to the side of the reinforced concrete structure.

Further, according to the barrier structure of the bridge using the precast barrier member of the present invention, the bridge bottom plate protruding the precast barrier member, a portion of the reinforcing bar located inside the boundary line to be constructed, and the bridge bottom plate A reinforcing bar passing through an overlapping portion in a state where reinforcing bars and reinforcing bars of the precast barrier member cross each other, and a filler filled inside a groove of the precast barrier member, wherein the plurality of precast barrier members are connected to the boundary line. It is arranged along the technical features to form a firewall.

In addition, according to a preferred embodiment of the present invention, the duct is located in the longitudinal direction on the upper end of the precast barrier member, a plurality of the precast barrier member is arranged in a line in the state in which the ducts communicate, the duct connected The plurality of precast barrier members are bound by inserting a tension member into the field to tension.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the precast firewall member and the bridge structure of the bridge using the same according to the present invention will be described in detail.

[First Embodiment]

1 is a perspective view showing a precast barrier member according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line a-a 'shown in FIG. 1, and FIG. 3 is b- shown in FIG. It is sectional drawing of the b 'line.

As shown in FIG. 1, the precast firewall member 100 is a reinforced concrete structure in which rebars 101 are disposed and assembled therein. The upper part of the precast firewall member 100 is narrow in width and the lower part thereof is wide in width. It has a relatively wide structure. Therefore, even if the precast firewall member 100 is upright, it is positioned vertically in a stable structure.

On the other hand, as shown in Figure 2 and 3, the groove 110 having a predetermined width and depth is formed in the longitudinal direction of the precast firewall member 100 on the bottom surface of the precast firewall member 100, One end of the groove 110 is opened and the other end is closed. In the groove 110, reinforcing bars 101 located inside the precast firewall member 100 protrude to the inside of the groove 110, and an elastic rubber having a thickness of about 5 mm on both bottom surfaces of the groove 110. 120 is attached.

In addition, a plurality of pouring tools 115 are formed in the groove 110 so as to communicate with the outer surface of the precast firewall member 100. As described later, the pouring tool 115 is a hole formed for pouring the filler 113 into the groove 110.

The plurality of precast firewall members 100 configured as described above are arranged in a line in the longitudinal direction to form the firewall wall 200. At this time, the precast firewall member 100 may be connected to each other in close contact with the precast firewall member 100. A shear key 117 is vertically formed at one end of the shear key, and a shear key groove 119 into which the shear key 117 is inserted is formed at the other end.

The following describes the process of constructing a barrier on the bridge deck using the precast barrier member configured as described above.

4 is a perspective view showing a state in which the precast security barrier member shown in FIG. 1 is constructed as a security barrier of a bridge, FIG. 5 is a longitudinal sectional view showing the security barrier structure shown in FIG. 4, and FIG. It is a schematic diagram which shows arrangement | positioning and assembly relationship of the rebar of the precast firewall member and bridge deck shown in FIG.

After the transfer of the plurality of precast barrier members 100 to the bridge bottom plate 210 to construct the barrier 200, as shown in Figures 4 to 6, in the longitudinal direction of the bridge bottom plate 210 It arranges along the installation line of the firewall 200. In the arrangement, the front end key 117 of the precast barrier member 100 is arranged in line with the front end key groove 119 of the other precast barrier member 100.

On the other hand, looking at the reinforcement structure of the bridge bottom plate 210, some of the reinforcing bar 211 of the bridge bottom plate 210 is protruded to protrude along the installation line of the protective wall (200). The reinforcing bar of the bridge bottom plate 210 protruding upwards protrudes at the point where the precast security barrier member 100 is seated, and when the precast security barrier member 100 is located at the installation line of the security barrier 200. The reinforcing bar 211 of the bridge bottom plate 210 intersects with the reinforcing bar 101 of the precast firewall member 100 located inside the groove 110 of the precast firewall member 100. In the state where the reinforcing bars 211 of the bridge deck 210 and the reinforcing bars 101 of the precast barrier member 100 intersected with each other and in the mutually opposite structures, the two reinforcing bars 101 and 211 overlap. Insert the longitudinal reinforcing bars (221).

By inserting the longitudinal reinforcing bars 221 in the two reinforcing bars (101, 211) in this way, the precast security barrier member 100 is bound to the longitudinal reinforcing bars (221) is prevented from leaving the protective wall 200 to be constructed.

On the other hand, looking at the assembly structure of the precast security barrier member 100, one precast security barrier member 100 is seated on the bridge base plate 210 and the longitudinal reinforcing bars 221 are fitted. Then, the front key groove 119 of the precast firewall member 100 is seated on the bridge deck 210 with the front key 117 of the other precast firewall member 100 inserted thereinto, and the precast firewall member The rebar 101 of the 100 and the reinforcing bar 211 of the bridge bottom plate 210 is inserted into the longitudinal reinforcing bars 221. After repeating the assembly in this order to arrange a plurality of precast firewall member 100 in a line along the installation line of the firewall 200, the filling material through the pouring hole 115 formed in each precast firewall member 100 A portion 113 is poured to fill the inside of the groove 110 of the precast firewall member 100. When the filler 113 filled in this way is cured, the reinforcement 211 of the bridge deck 210 and the reinforcement 101 of the precast barrier member 100 and the longitudinal reinforcing bars 221 connecting them are cured. The bridge bottom plate 210 and the precast firewall member 100 are integrated within the 113.

Meanwhile, the filler 113 poured through the pouring hole 115 is filled for each precast firewall member 100. This is because the other end of the groove 110 of each precast firewall member 100 is closed. As such, the filler 113 filled in the groove 110 does not flow out of the groove 110 by the elastic rubber 120 attached to the bottom surface of the precast barrier member 100.

In order to enhance the appearance of the firewall and to prevent rainwater from entering the gap between the barriers, a sealing operation is performed to fill the gap between the precast barrier members with a sealant.

Second Embodiment

In the drawings, Figure 7 is a perspective view showing a precast firewall member according to a second embodiment of the present invention.

When the precast firewall member of the second embodiment shown in Fig. 7 is compared with the precast firewall member of the first embodiment, the other components are the same except that the bottom side of the precast firewall member is opened. As shown in FIG. 7, the reason why the bottom side of the precast security barrier member 100 is opened is that the reinforcing bar 101 of the precast security barrier member 100 is constructed when the precast security barrier member 100 is installed on the bridge bottom plate 210. ) And the reinforcing bar 211 and the longitudinal reinforcing bar 221 of the bridge deck 210 is to allow the installer to directly check whether the arrangement and assembly.

In addition, when the precast security barrier member 100 is installed on the bridge bottom plate 210, an auxiliary formwork is installed at the open portion 140, and a foam vibrator is attached to the auxiliary formwork, and the filling material 113 is vibrated. A pledge is also possible.

Third Embodiment

8 is a perspective view showing a precast firewall member according to a third embodiment of the present invention, and FIG. 9 is a longitudinal sectional view showing a state in which prestressing is applied to the precast firewall member shown in FIG. 8.

The precast firewall member of the third embodiment has the same structure as the precast firewall members described in the first and second embodiments, and the duct 130 is positioned in the longitudinal direction at the upper side thereof, so that the plurality of precast firewall members 100 are disposed. It is configured to be able to apply prestressing the sheath 133, which is a tension material, through the duct 130 in a state connected in a line.

Therefore, in the precast firewall member and the bridge firewall structure using the same according to the third embodiment described below, detailed descriptions of the components described above will be omitted and the same reference numerals will be given.

The duct 130 is planted in the longitudinal direction at the upper end of the precast firewall member 100. The duct 130 is configured such that when the precast security barrier members 100 form the security barrier 200, the sheath 133, which is a tension member, may be inserted and tensioned through the connected duct 130.

As described above, in the state in which the plurality of precast barrier members 100 are connected to form the barrier wall 200, the ducts 130 formed in each precast barrier member 100 are interconnected to form a long connection passage. By inserting and tensioning the sheath 133, which is a tension member, in the connection passage, the effect of being able to more firmly bind the plurality of precast firewall members 100 connected to one barrier 200 is provided.

[Example 4]

10 is a perspective view showing a precast firewall member according to a fourth embodiment of the present invention.

The precast security barrier member of the fourth embodiment is a structure in which the precast security barrier members described in the second and third embodiments are combined, and the inner side of the upper part is provided with the duct 130 in the longitudinal direction to install the sheath (133 in FIG. 9). The open side 140 may be formed at the bottom side of the precast median member 100.

As described in detail above, the precast barrier member of the present invention and the bridge structure of the bridge using the same have a precast barrier member constituting the barrier wall in advance, and when the bridge bottom plate is raised, it is transferred to the bridge bottom plate to be constructed. The advantage is that the period can be shortened.

In addition, the security barrier structure of the present invention has an advantage that the vehicle can be prevented from falling out of the bridge because of excellent durability even if bumped by a vehicle or the like because the barrier is integrally constructed on the bridge bottom plate.

In addition, the precast barrier member of the present invention and the barrier structure of the bridge using the same has the advantage of reducing construction cost by reducing the manpower required because of simple construction and excellent workability.

In the above description, the technical concept of the precast barrier member of the present invention and the barrier structure of the bridge using the same is described together with the accompanying drawings, but the exemplary embodiments of the present invention have been described by way of example and are not intended to limit the present invention.

Claims (7)

Precast reinforced concrete structure, the bottom surface is formed with a groove in the longitudinal direction, a part of the reinforcing bar is projected in a closed form inwardly of the groove, the pouring hole that communicates the groove and the outer surface of the structure A precast firewall member, characterized in that formed. The method of claim 1, A precast firewall member, characterized in that a shear key is formed vertically at one end of the length in the longitudinal direction of the reinforced concrete structure, and a shear key groove corresponding to the shear key is formed at the other end. The method according to claim 1 or 2, Precast firewall member, characterized in that the elastic rubber is attached to the bottom surface is formed. The method according to claim 1 or 2, The precast firewall member, characterized in that the duct is located in the longitudinal direction on the upper end of the reinforced concrete structure. The method according to claim 1 or 2, The lower end of the reinforced concrete structure is precast firewall member, characterized in that the reinforcing bar projecting inside the groove is exposed to the side of the reinforced concrete structure. Reinforced concrete structure, the bottom surface is formed with a groove in the longitudinal direction, a part of the reinforcement located inside protrudes in a closed form of the inside of the groove, the free-formed hole formed in communication between the groove and the outer surface of the structure A cast firewall member; A bridge bottom plate in which a part of reinforcing bars protruded in a closed form along a boundary line on which a security barrier is to be constructed; Longitudinal reinforcing bars passing through the overlapping portions in a state where the protruding bars of the bridge deck and the protruding bars of the precast barrier member cross each other; It includes a filler filled inside the groove of the precast firewall member, A bridge structure of a bridge using a precast barrier member, wherein a plurality of the precast barrier members are disposed along the boundary line to form a barrier. The method of claim 6, Ducts are longitudinally positioned at an upper end of the precast barrier member, and a plurality of the precast barrier members are arranged in a line so that the ducts are in communication with each other, thereby inserting and tensioning a tension member in the communicating ducts. A bridge structure of a bridge using a precast barrier member, characterized in that the precast barrier members are bound.

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