KR200211308Y1 - Longitudinal coupling structure of assembled culverts - Google Patents

Abstract

The present invention relates to a longitudinally coupled structure of the vertically dismountable prefabricated culverts configured to combine the side wall portion 21 of the upper culvert 20 and the side wall portion 21a of the lower culvert 20a to form a cavity 22. .

According to the present invention, the PC steel bar 25 is inserted into the steel bar hole 24 formed in the longitudinal direction through the steel bar fastening grooves 23 formed on the upper surfaces of both sidewall portions 21 of the upper culvert 20. Both ends of the steel bar 25 are respectively fastened to the insert coupler 23a and the steel bar fastening groove 23 which are inserted and fixed inside both side wall portions 21a of the lower culvert 20a, and the steel bar hole 24 and the PC. Characterized in that the grout is filled between the steel rods (25),

Accordingly, the rigidity of the prefabricated culvert against horizontal earth pressure and external impact is improved, and the resistance to deformation is increased to maintain the longitudinally coupled state of the prefabricated culvert.

Description

Longitudinal coupling structure of prefabricated culvert {LONGITUDINAL COUPLING STRUCTURE OF ASSEMBLED CULVERTS}

The present invention relates to a concrete structure, and more particularly to a longitudinal coupling structure of the vertically divided prefabricated culvert (Culvert).

In general, the vertically divided prefabricated culvert is a concrete structure used to make a channel for sewage and agricultural industrial water, an electric communication line such as a telephone line, and an underground cavity for embedding gas pipes.

The upper and lower detachable prefabricated culverts are classified into a box shape, an arch shape, a door type, etc. according to the hollow sphere shape, and the upper and lower culverts, which are manufactured in advance, are coupled to each other.

Referring to FIG. 1, the conventional split up and down prefabricated culvert is composed of an upper culvert 10 and a lower culvert 10a in which both sidewall portions 11 and 11a are formed, respectively, and the upper culvert 10 and the lower culvert. When the side wall portions 11 and 11a of the 10a are joined to each other, the cavity sphere 12 is formed.

In this case, the upper culvert 10 and the lower culvert 10a are coupled to each other by fitting the protrusions 13 and the recesses 13a formed in the respective side wall plates 11 and 11a.

However, as described above, the upper culvert 10 and the lower culvert 10a are simply fitted to each other by fitting the protrusion 13 and the recess 13a formed in each side wall portion 11 and 11a without a separate fastening mechanism. Conventional vertical split type prefabricated culverts that are coupled to each other have a disadvantage in that they are easily deformed by horizontal earth pressure and external impact.

Accordingly, the present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to provide a longitudinal coupling structure of the prefabricated culvert to the longitudinally coupled upper and lower culvert using a PC steel bar.

In the longitudinal coupling structure of the prefabricated culvert for achieving the object of the present invention in the longitudinal coupling structure of the prefabricated culvert to form a cavity by combining the sidewall portion of the upper culvert and the sidewall portion of the lower culvert,

PC steel bars are inserted into the steel rod holes formed in the longitudinal direction through the steel rod fastening grooves formed on the upper surfaces of both side wall portions of the upper culvert, and both end portions of the PC steel rods are inserted and fixed inside both side wall portions of the lower culvert. It is fastened to each of the insert coupler and the steel rod fastening groove, characterized in that the grout is filled between the steel rod hole and the PC steel rod.

In the longitudinal coupling structure of the other prefabricated culvert for achieving the object of the present invention in the longitudinal coupling structure of the prefabricated culvert to form a cavity by combining the sidewall portion of the upper culvert and the sidewall portion of the lower culvert,

Upper PC bars are inserted into upper bar holes formed in the longitudinal direction through upper bar fastening grooves and upper coupler fastening grooves respectively formed on upper and lower side walls of both side wall portions of the upper culvert, and both side wall portions of the lower culvert Lower PC bars are inserted into lower bar holes formed in the longitudinal direction through lower coupler fastening grooves and lower steel bar fastening grooves respectively formed on the upper and lower surfaces, and one end of each of the upper and lower PC steel bars is fastened to the upper and lower couplers. It is fastened to the coupler is inserted into the groove, the other end of each of the upper and lower PC steel bar is fastened to the upper and lower steel bar fastening groove, characterized in that the grout is filled between the upper and lower steel bar hole and the upper and lower PC steel bar.

1 is a perspective view showing a longitudinal coupling structure of a conventional prefabricated culvert,

Figure 2 is a cross-sectional view showing a longitudinal coupling structure of the prefabricated culvert according to the present invention,

3 is a cross-sectional view showing a longitudinal coupling structure of another prefabricated culvert according to the present invention.

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

10: upper culvert 10a: lower culvert

11, 11a: side wall 12: cavity

13: stone 13a: woman

20: upper culvert 20a: lower culvert

21, 21a: side wall 22: cavity

23: Steel bar fastening groove 23a: Insert coupler

24: Steel rod hole 25: PC steel rod

26: Anchor Plate 27: Nut

30: upper culvert 30a: lower culvert

31, 31a: side wall 32: cavity

33: Upper steel bar fastening groove 33a: Lower coupler fastening groove

34: Upper coupler tightening groove 34a: Lower steel bar tightening groove

35: upper rod hole 35a: lower rod hole

36: upper PC rod 36a: lower PC rod

37: Coupler 38: Anchor Plate

39: nut

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2, the prefabricated culvert according to the present invention is to form the cavity 22 by combining the side wall portion 21 of the upper culvert 20 and the side wall portion 21a of the lower culvert 20a.

Steel bar fastening grooves 23 are formed on the upper surfaces of both side wall portions 21 of the upper culvert 20, and the PC steel bars 25 are formed in the longitudinal direction of the side wall portions 21 through the steel bar fastening grooves 23. The steel bar hole 24 into which this is inserted is formed.

The insert coupler 23a to which one end of the PC steel bar 25 is fastened is inserted into both side wall portions 21a of the lower culvert 20a.

The insert coupler 23a is inserted into and fixed to both sidewall portions 21a at the time of manufacturing the lower culvert 20a.

The other end of the PC steel bar 25 is fastened by the anchor plate 26 and the nut 27 in which the grout filling groove (not shown) is formed in the steel bar fastening groove 23, and the steel bar hole 24 Grout is filled between the rod and the PC steel rod 25, and the steel rod fastening groove 23 is closed with mortar.

By the above configuration, the prefabricated culvert according to the present invention is assembled as follows and combined in the longitudinal direction.

The contractor mounts the upper culvert 20 on the lower culvert 20a so that the rod hole 24 of the upper culvert 20 coincides with the insert coupler 23a of the lower culvert 20a.

Next, the contractor inserts the PC steel bar 25 into the steel bar hole 24 through the steel bar fastening groove 23 of the upper culvert 20, and then one end of the PC steel bar 25 to the insert coupler And the other end of the PC steel bar 25 to the steel bar fastening groove 23 by using the anchor plate 26 and the nut 27 to fasten the upper culvert 20 and the lower culvert ( Join 20a) in the longitudinal direction.

After the upper culvert 20 and the lower culvert 20a are longitudinally coupled to each other by the PC steel bar 25 as described above, the contractor grout the anchor plate 26 with a separate grout pump (not shown). The grout is filled between the rod rod 24 and the PC rod 25 through a filling groove, and finally the mortar is filled with the rod fastening groove 23 to finish the upper culvert 20 and the lower culvert ( Complete the operation of combining 20a) in the longitudinal direction.

Hereinafter, another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 3, the assembled culvert according to the present invention combines the side wall portion 31 of the upper culvert 30 and the side wall portion 31 a of the lower culvert 30a to form a cavity 32. It is supposed to be.

Upper and lower coupler fastening grooves 33 and upper coupler fastening grooves 34 are formed on upper and lower surfaces of both sidewall portions 31 of the upper culvert 30, respectively. An upper steel bar hole 35 through which the upper PC steel bar 36 is inserted in the longitudinal direction of the side wall portion 31 is formed through the groove 34.

Lower coupler fastening grooves 33a and lower bar fastening grooves 34a are formed on the upper and lower surfaces of both sidewall portions 31a of the lower culvert 30a, respectively, and the lower coupler fastening grooves 33a and the lower steel bar fastenings are formed. A lower steel bar hole 35a is formed in which the lower PC steel bar 36a is inserted in the longitudinal direction through the groove 34a in the longitudinal direction of the side wall portion 31a.

One end of each of the upper and lower PC steel bars 36 and 36a is fastened to a coupler 37 inserted into the upper and lower coupler fastening grooves 34 and 33a, and the other end of each of the upper and lower PC steel bars 36 and 36a. Is fastened to the upper and lower steel bar fastening grooves 33 and 34a by an anchor plate 38 and a nut 39 on which grout filling grooves (not shown) are formed.

Grout is filled between the upper and lower steel bar holes 35 and 35a and the upper and lower PC steel bars 36 and 36a, and the upper and lower steel bar fastening grooves 33 and 34a are closed with mortar.

By the above configuration, the prefabricated culvert according to the present invention is assembled as follows and combined in the longitudinal direction.

The contractor first inserts the lower PC steel bar 36a into the lower steel bar hole 35a through the lower steel bar fastening groove 34a of the lower culvert 30a, and then ends one end of the lower PC steel bar 36a. After fastening to the coupler 37 which is inserted into the lower coupler fastening groove 33a of the lower culvert 30a, the other end of the lower PC steel bar 36a is anchored using an anchor plate 38 and a nut 39. Fasten to the lower steel bar fastening groove (34a).

Subsequently, the builder fills the grout between the lower rod bevel 35a and the lower PC rod 36a through a grout filling groove of the anchor plate 38 with a separate grout pump (not shown). The steel bar fastening groove 34a is finished with mortar.

As described above, after the lower PC steel rod 36a is inserted into the lower steel rod hole 35a of the lower culvert 30a, the contractor 37 and the lower steel rod fastening groove 34a are engaged with the contractor. The upper culvert 30 in the lower culvert 30a so that the upper coupler engaging groove 34 of the culvert 30 coincides with the coupler 37 which is inserted and fixed in the lower coupler engaging groove 33a of the lower culvert 30a. Mount).

Next, the contractor inserts the upper PC rod 36 into the upper rod hole 35 through the upper rod fastening groove 33 of the upper culvert 30, and then ends one side of the upper PC rod 36. To the coupler 37 and the other end of the upper PC steel bar 36 is fastened to the upper steel bar fastening groove 33 by using the anchor plate 38 and the nut 39 to the upper culvert 30. ) And the lower culvert 30a are combined in the longitudinal direction.

After the upper culvert 30 and the lower culvert 30a are longitudinally coupled to each other by the upper and lower PC steel bars 36 and 36a as described above, the contractor is fastened to the upper steel bar fastening groove 33 by a separate grout pump. The grout is filled between the upper steel rod hole 35 and the upper PC steel rod 36 through the grout filling groove of the anchor plate 38, and finally, the mortar is filled into the upper steel rod fastening groove 33. By finishing, the operation of coupling the upper culvert 30 and the lower culvert 30a in the longitudinal direction is completed.

As described above, the longitudinal coupling structure of the prefabricated culvert according to the present invention is designed to combine the upper culvert and the lower culvert in the longitudinal direction by using a PC steel bar, thereby improving the rigidity of the prefabricated culvert against horizontal earth pressure and external impact. Increased resistance to deformation is effective to maintain the longitudinally coupled state of the prefabricated culvert.

What has been described above is just one embodiment for carrying out the longitudinal coupling structure of the prefabricated culvert according to the present invention, the present invention is not limited to the above-described embodiment, which is claimed in the following utility model registration claims Without departing from the gist of the present invention, any person having ordinary knowledge in the field to which the present invention belongs may make various changes.

Claims (2)

(1 tablet) In the longitudinal coupling structure of the prefabricated culvert configured to join the side wall portion of the upper culvert and the side wall portion of the lower culvert together to form a cavity The PC steel bar 25 is inserted into the steel bar hole 24 formed in the longitudinal direction through the steel bar fastening grooves 23 formed on the upper surfaces of both side wall portions 21 of the upper culvert 20. Both end portions of the 25 are respectively fastened to the insert coupler 23a and the steel rod fastening groove 23 which are inserted and fixed inside both side wall portions 21a of the lower culvert 20a, and the steel bar hole 24. Longitudinal coupling structure of the prefabricated culvert, characterized in that the grout is filled between the and the PC steel bar (25). (1 tablet) According to claim 1, It is formed in the longitudinal direction through the upper rod fastening groove 33 and the upper coupler fastening groove 34 formed on the upper and lower surfaces of both side wall portions 31 of the upper culvert 30, respectively. The upper PC steel bar 36 is inserted into the upper steel bar hole 35, and the lower coupler fastening groove 33a and the lower steel bar fastening groove which are respectively formed on the upper and lower surfaces of both side wall portions 31a of the lower culvert 30a. The lower PC steel bar 36a is inserted into the lower steel bar hole 35a formed in the longitudinal direction through the 34a, and one end of each of the upper and lower PC steel bars 36 and 36a has the upper and lower coupler fastening grooves 34. And the other end of each of the upper and lower PC steel bars 36 and 36a are fastened to the upper and lower steel bar fastening grooves 33 and 34a, and the upper and lower steel bar holes 35 and The grout is filled between 35a) and the upper and lower PC steel bars 36 and 36a. Longitudinal coupling structure of prefabricated culvert.