KR200423546Y1 - Precast Concrete Median Strip and Median Strip System - Google Patents

Abstract

The present invention relates to a central separator installed along the center line of the road, and by making a precast median member constituting the median in advance, the construction site is completed by a simple operation using a precast median member. In the construction of the median separator using such a precast median member, it is possible to provide a precast median member and a median structure using the same in which the median is not moved by being aligned with the road. The purpose is.

The precast median member of the present invention for achieving the above object is a structure, the groove is formed in the longitudinal direction on the bottom surface, the technical features that the groove is formed in communication with the outer surface of the groove do.

In addition, according to the structure of the median of the present invention, the precast median member, a plurality of fixed bodies embedded in and fixed to the road in which the precast median member is arranged in a line, and the precast median member It includes a filler filled inside the groove, characterized in that the filler is hardened in the state where the anchor or reinforcing bar is located therein and is matched with the groove of the precast center plate member.

Precast Concrete Separators, Fillers

Description

Precast median member and median structure using it {Precast Concrete Median Strip and Median Strip System}

1 is a perspective view showing a precast median 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 construction of the central separator using the precast median member shown in FIG.

FIG. 5 is a longitudinal cross-sectional view illustrating the median structure shown in FIG. 4;

FIG. 6 is a schematic view showing the arrangement and assembly relationship of reinforcing bars before filling the precast median member shown in FIG.

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

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

9 is a longitudinal cross-sectional view illustrating a state in which prestressing is applied to the precast median member shown in FIG. 8.

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

Explanation of symbols on the main parts of the drawings

100: precast median member

101: wire mesh

110: home 113: filling

115: pouring place 117: shear key

119: shear key groove 120: elastic rubber

200: median 210: road

220: anchor 230: duct

240: sheath 140: open area

The present invention relates to a precast center separator member installed along a center line of a road and a center separator structure using the same, and in particular, a construction site using a precast center separator member constituting a center separator installed in the center of a road is used. The present invention relates to a precast median member and a median structure using the same, allowing the construction of a median separator with a simple connection.

In the center of the high-speed road, a median is installed along the center line to prevent large accidents that may occur due to entering the other lane.

Such a median is a concrete structure and should be installed firmly on the road. If the median is not installed firmly on the road, the collision of the large vehicle with the median will cause the median to move in the opposite lane, causing a second accident, or the large vehicle will push the median and proceed in the opposite lane. Because it can.

As such, in order to construct a central separator, which is a concrete structure, on the road, conventionally, after the formwork is installed in the form of a central separator, concrete is poured in the field.

As described above, the conventional central separator is manufactured by cast-in-place concrete, and therefore, since the whole process of construction is performed in the field, there is a disadvantage in that the construction period is long. In addition, there are disadvantages that the construction cost increases due to the large number of processes and the disadvantage that workability is poor. In particular, when the median separator is not firmly installed on the road, the median detaches during a vehicle crash or the vehicle crosses the median separator so that the median does not function properly.

The present invention has been developed to solve the problems of the prior art as described above, by pre-fabricating the center separator as a precast center separator member, by assembling firmly on the road in the field, by the cast-in-place concrete as above The purpose is to be able to solve the disadvantages and problems caused by the construction of the central separator.

In addition, in constructing a median separator using such a precast median member, an object of the present invention is to provide a median structure in which the precast median member is firmly installed by being fixed to the road.

The precast median member of the present invention for achieving the above object is a structure, the groove is formed in the longitudinal direction on the bottom surface, the technical features that the groove is formed in communication with the outer surface of the groove do.

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 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 lower end of the structure is open to expose the inside of the groove.

In addition, according to a preferred embodiment of the present invention, the duct is located in the longitudinal direction inside the upper portion of the structure.

In addition, according to the structure of the median of the present invention, the precast median member, a plurality of fixtures protruding upwardly fixed to the road in which the precast median member is arranged in a line, and the precast median And a filler filled inside the groove of the member, wherein the filler is cured in a state where the fixture is positioned therein, so that the filler is cured with the groove of the precast median member.

In addition, according to a preferred embodiment of the present invention, the duct is located in the longitudinal direction inside the upper portion of the precast center plate member, the sheath is installed through the duct connected in a state in which the precast center plate members are arranged in a line To bind the plurality of precast median members arranged in line.

In the following, with reference to the accompanying drawings, preferred embodiments of a precast median member and a median structure using the same according to the present invention will be described in detail.

[First Embodiment]

1 is a perspective view showing a precast center plate member according to a first embodiment of the present invention, Figure 2 is a cross-sectional view of the line a-a 'shown in Figure 1, Figure 3 is b shown in Figure 1 A cross-sectional view of the -b 'line.

As shown in FIG. 1, the precast median member 100 is a precast concrete structure in which the wire mesh 101 is located, and the upper portion of the precast median member 100 is narrow and the lower portion thereof is wide. This has a relatively wide structure. Therefore, even if the precast median member 100 is upright, it is positioned vertically in a stable structure.

Meanwhile, as shown in FIGS. 2 and 3, the groove 110 having a predetermined width and depth is formed in the longitudinal direction of the precast median member 100 on the bottom surface of the precast median member 100. One end of the groove 110 is opened and the other end is closed. And the bottom of both sides of the groove 110 is attached to the elastic rubber 120 of about 5mm thickness.

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 median member 100. As described later, the pouring tool 115 is a hole formed for pouring the filler 113 into the groove 110.

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

Hereinafter, the process of constructing the median separator using the precast median member configured as described above will be described.

4 is a perspective view illustrating a state in which the precast median member shown in FIG. 1 is constructed as a median separator, FIG. 5 is a longitudinal cross-sectional view illustrating the median structure illustrated in FIG. 4, and FIG. Figure 5 is a schematic diagram showing the arrangement and assembly of the reinforcing bar prior to filling the filler in the precast median member shown in FIG.

In order to construct the central separator 200, a plurality of anchors 220 are driven along the center line of the road 210. In this case, the height of the anchor 220 is lower than the depth of the groove 110 of the precast median member 100, and when the precast median member 100 is positioned at the center line, the anchor 220 is positioned inside the groove 110. It is located at.

On the other hand, as an element constituting the road, in the case of the bridge bottom plate, instead of the anchor 220, which is the fixed body, when the bridge bottom plate is constructed, the anchor 220 is protruded by protruding the bottom plate reinforcement to the upper surface in advance. It can be replaced.

Hereinafter, the reinforcing bar or anchor as a fixing body will be described collectively as an anchor 220.

After the plurality of anchors 220 are driven along the road 210 as described above, the plurality of precast median members 100 are transferred to the road 210. 4 to 6, the precast median member 100 is arranged in a line along the center line of the road 210. In a row arrangement, the front end key 117 of the precast median member 100 is arranged in line with the front end key groove 119 of the other precast median member 100. As described above, when the precast median member 100 is arranged in a line along the center line, the anchor 220 is positioned inside the groove 110.

Next, the filler 113 is poured into the groove 110 through the pouring hole 115 of the precast center plate member 100 disposed along the center line. The filler 113 poured through the pouring tool 115 is filled for each precast median member 100. The reason is that the other end of the groove 110 of each precast median 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 center plate member 100.

Meanwhile, as the filler 113 poured into the groove 110 is cured, the anchor 220 is positioned inside the filler 113 to fix the filler 113, and the cured filler 113 and the precast center are fixed. The groove 110 of the separator member 100 is positioned in a mated state. Therefore, even when the side of the precast center member 100 is impacted, the cured filler 113 and the groove 110 are matched so that the precast center member 100 does not fall.

Second Embodiment

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

When comparing the precast median member of the second embodiment shown in FIG. 7 with the precast median member of the first embodiment, the other components are identical except that the bottom side of the precast median member is opened. As shown in FIG. 7, the reason why the bottom side of the precast median member 100 is opened is that the precast median member 100 and the anchor are positioned in the road 210. The positional relationship of the 220 is to allow the contractor to directly check.

In addition, when the precast median member 100 is installed on the road 210, an auxiliary formwork is installed at the open portion 140, and a form vibrator is attached to the auxiliary formwork to vibrate the filling material 113. A pledge is also possible.

Third Embodiment

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

The precast median member of the third embodiment has the same structure as the precast median member described in the first and second embodiments, and the duct 230 is located on both sides of the wire mesh 101 in the longitudinal direction at the upper inner side thereof. In a state in which a plurality of precast median members 100 are connected in a line, the sheath 240 may be prestressed through the duct 230.

Therefore, in the precast median member and the median structure of the third embodiment to be described below, detailed descriptions of the components described above are omitted and the same reference numerals are assigned.

As shown in FIG. 8, the duct 230 is located in the longitudinal direction at the upper end of the precast median member 100. When the precast median member 100 having such a structure is positioned at the center of the road in a row, the ducts 230 of each precast median member 100 communicate with each other to form a long passage.

As shown in FIG. 9, the sheath 240 is inserted into the duct 230 and the end of the sheath 240 is fixed in the tensioned state. Tension force is applied in the longitudinal direction of the precast median member 100 to bind the plurality of precast median members 100 arranged in line. As such, the binding of the precast median members 100 by prestressing the sheath 240 serves to distribute the impact to other precast medial members 100 when an impact is applied to the center of the median 200. Increase the robustness.

[Example 4]

In the drawings, Figure 10 is a perspective view showing a precast median member according to a fourth embodiment of the present invention.

The precast median member of the fourth embodiment is a structure in which the precast median members described in the second and third embodiments are combined, and the duct 230 is located in the longitudinal direction at the upper side to install the sheath. An open portion 140 is formed at the bottom side of the cast median member 100.

As described in detail above, the precast median member of the present invention and the structure of the median divider using the same have a precast median member constituting the median in advance, and then moved to the road immediately at the time of construction of the median, thereby constructing the median. The advantage is that the period can be shortened.

In addition, the median structure of the present invention is a structure in which the grooves of the precast median member and the pour curing material is firmly installed on the road, so that the precast median member is pushed even when the median side is impacted. It can prevent the vehicle from falling into the opposite lane even when a large vehicle is hit by a big impact, and also prevents an accident that may occur due to the collapse of the precast median member.

In addition, the precast center member of the present invention and the structure of the center separator using the same has the advantage that the construction cost is simple and excellent workability can be reduced to reduce the manpower required construction cost.

In the above description, the technical concept of the precast median member of the present invention and the structure of the median divider using the same has been described with the accompanying drawings, but this is by way of example and not by way of limitation.

Claims (7)

Precast concrete structure, the bottom surface is formed with a groove in the longitudinal direction, the groove is formed in communication between the groove and the outer surface of the structure, the pre-reinforced wire mesh is provided in the interior Cast median member missing. The method of claim 1, A shearing key is vertically formed at one end of the length in the longitudinal direction of the structure, and a shearing key groove corresponding to the shearing key is formed at the other end. The method according to claim 1 or 2, Precast center plate member, characterized in that the elastic rubber is attached to the bottom surface is formed. The method according to claim 1 or 2, A precast median member, characterized in that the lower end of the structure is open to expose the inside of the groove. The method of claim 1, The precast median member, characterized in that the upper duct in the longitudinal direction is located inside the structure. Precast concrete structure, the bottom surface is formed with a groove in the longitudinal direction, the groove is formed in communication with the groove and the outer surface of the structure, the precast center plate member is provided with a reinforcing wire mesh inside Wow; A plurality of fixtures fixed to a road on which the precast median members are arranged in a line and protruding upward; And a filler filled inside a groove of the precast median member. The centerpiece structure using a precast centerpiece member, characterized in that the filler is hardened in the state that the fixing body is located therein and is matched with the groove of the precast centerpiece member. The method of claim 6, A plurality of precasts are arranged in a line through the ducts connected in a state in which the ducts are longitudinally located inside the upper part of the precast median member, and the precast median members are arranged in a line. A median structure using a precast median member, characterized in that the median members are bound.

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