KR100661916B1 - Bidirectional Shear, Buckling Reinforced Concrete Culvert - Google Patents

Abstract

Bidirectional shear, buckling reinforced concrete culverts are disclosed. Such a concrete culvert may include a passage segment having a passage formed therein, a first side portion provided at one side of the passage segment, and having at least one protrusion and an accommodating portion arranged alternately between the protrusions; It is formed on the other side located in the opposite direction of one side, and the second side portion is formed in each of the protrusion and the receiving portion, and formed on the inner edge of the passage segment, the second line can pass through the longitudinal direction of the passage segment Contains a tooth.

Description

CONCRETE CULVERT CAPABLE OF REINFORCEMENT SHEAR FORCE AND BUCKLING THEREOF}

1 is a perspective view showing a bidirectional shear buckling reinforced concrete culvert according to a preferred embodiment of the present invention.

FIG. 2 is a front view of the concrete culvert shown in FIG. 1.

3 is a side structural view showing the internal structure of the concrete culvert shown in FIG.

FIG. 4 is an enlarged partial view of the structure of the steel wire fixing hole shown in FIG. 3.

FIG. 5 is a side view illustrating a state in which a plurality of concrete culverts shown in FIG. 1 are combined and constructed.

FIG. 6 is a partially enlarged view showing an enlarged "part A" of the concrete culvert shown in FIG.

FIG. 7 is an enlarged view of a portion “B” of FIG. 6 enlarged.

FIG. 8 is an enlarged perspective view of the rubber ring shown in FIG. 6.

FIG. 9 is a coupling diagram showing a state in which two concrete culverts shown in FIG. 1 are coupled to each other.

10 is a view showing a state in which a plurality of concrete culverts in accordance with a preferred embodiment of the present invention by using a steel wire to connect integrally.

11 is a plan view showing a state connecting the curved portion using a concrete culvert according to another embodiment of the present invention.

12 is a front view of the curved culvert shown in FIG.

Fig. 13 is a side view of the bend culvert shown in Fig. 12;

The present invention relates to a concrete culvert, and more particularly, to a concrete culvert that can sufficiently secure the connection strength when constructing a plurality of culverts in a straight or curved line by improving the structure of the culvert and reinforcing shear and buckling strength. .

In general, concrete culverts are used for various purposes, such as prefabricated underground buried to form a channel, used as a passage through the telecommunication cables and air conditioning pipes, or used as a storage warehouse or passage of agricultural and marine products.

Such concrete culverts have a substantially rectangular cross section and a passageway is formed therein so that fluid such as sewage may flow.

Therefore, by constructing a plurality of concrete culverts of such a structure it is possible to form a passage of a predetermined length or more.

However, such a conventional concrete culvert has a structure in which each culvert gap is connected to each other by placing a material such as concrete, or connected to each other using another auxiliary structure, when a plurality of concrete culverts are connected to each other. There is a problem that the durability is weakened because the connection strength is not sufficient.

In addition, when the bottom surface of the pipeline consisting of a plurality of culverts is formed by erosion or the like, because the connection strength is not sufficient, the side parts of the culverts are damaged and settled to the bottom by the shear force generated by the self load or the vertical load. have.

In addition, in order to assemble and construct a plurality of culverts to each other, there is a problem in that the production cost of the culvert increases because the culverts must be manufactured by arranging them alternately with each other by manufacturing each with and without a culvert, a couple of pairs and a steel wire fixing hole.

Accordingly, the present invention has been made in view of the above problems, an object of the present invention is to improve the structure of both sides of the culvert by securing a sufficient connection strength when assembling a plurality of culverts to reinforce the shear force, to prevent buckling To provide a concrete culvert.

Another object of the present invention is to implement a culvert structure in one culvert, without having to manufacture a culvert, a pair of culverts, when connecting a plurality of culverts, there is no need to prepare a separate culvert The construction is possible by turning in both directions to provide a concrete culvert that can reduce the culvert manufacturing cost and construction period.

Still another object of the present invention is to provide a structurally stable concrete culvert by staggering the steel wires by placing the steel wire fixing holes one by one because the members located in even order of the culvert turn the front and rear surfaces.

Another object of the present invention is to block the water by the conventional non-shrink mortar filling method and caulking in order to prevent the corrosion of the steel wire, but in the present invention by using a rubber ring to block the water around the steel wire and attach the rubber index agent It is to provide a concrete culvert that can block the inflow of water by applying a primer before promoting the adhesion of the rubber ring and the concrete surface.

Still another object of the present invention is to provide a concrete culvert that is capable of responding to shearing and buckling by forming a shear key by forming a curved section in which a linear section is not a straight section so as to inject non-contraction mortar.

In order to realize the object of the present invention, the present invention includes a passage segment in which a passage is formed; A first side portion provided on one side of the passage segment and having at least one or more protrusions and an accommodating portion alternately arranged between the protrusions; A second side portion formed on the other side surface opposite to the one side, the protrusion and the receiving portion being arranged respectively; And it is formed on the inner edge of the passage segment, provides a concrete culvert comprising a haunche portion through which the steel wire can pass in the longitudinal direction of the passage segment.

Hereinafter, with reference to the accompanying drawings will be described in detail the structure of a concrete culvert according to a preferred embodiment of the present invention.

As shown in Figures 1 to 3, the concrete culvert is provided with a passage segment (1) having a passage formed therein, and on one side of the passage segment (1), at least one protrusion (5, 7,13 and the first side portion I and the receiving portion 9 are arranged alternately with each other, and provided on the other side of the passage segment 1, the projections 26 and the receiving portion 24, respectively And a second side portion (II) arranged, and a haunch portion (11) formed at the inner edge of the passage segment (1) and through which the steel wire (W) can pass in the longitudinal direction of the passage segment (1). .

In the concrete culvert having such a structure, the passage segment 1 has a substantially hexahedral shape, and fluids such as sewage and rainwater may flow by forming a passage therein. Of course, the passage segment 1 may be manufactured in various shapes such as triangle, circle, as well as a hexahedral shape.

In addition, the first side portion I is formed at one side of the passage segment 1 so that the buckling and shearing may be prevented by being combined with another concrete culvert by the uneven portion.

This first side portion I includes at least one protrusion 5, 7, 13 protruding from the transverse plane 3 and the longitudinal plane 8 of the passage segment 1, respectively, and the protrusions 5, 7, 13. It consists of an accommodating part 9 formed between.

That is, the horizontal surface 3 and the vertical surface 8 have a flat shape, and protrusions 5, 7, and 13 protrude from the flat horizontal surface 3 and the vertical surface 8 to a certain height.

Thus, the receiving portion 9 can be formed relatively between these protrusions 5, 7, 13.

In this case, the protrusions 5, 7, 13 may be arranged in a zigzag shape or arranged in a row.

In addition, the corners of the protrusions 5, 7 and 13 have a shape inclined at a predetermined angle, so that when combined with other concrete culverts 21, the protrusions 7 are accommodating portions of the other culverts 21. 25) more easily.

As a result, in the first side portion I provided on one side of the passage segment 1, the protrusions 5, 7, 13 and the receiving portion 9 may be alternately arranged.

In addition, a second side surface portion II having the same shape as the first side surface portion I is also provided on the other side surface located in the opposite direction of the side surface of the passage segment 1.

That is, as shown in FIGS. 1, 5, and 9, the second side portion II of the passage segment 1 also has the protrusion 24 and the receiving portion 26 in the same manner as the shape of the first side portion I. ), However, the protruding portion 24 and the accommodating portion 26 are formed at positions displaced from the protruding portion 7 and the accommodating portion 9 of the first side surface portion I.

For example, the accommodating part 9 of the first side part I is positioned at the position of the protrusion 24 of the second side part II, and the first side part is located at the accommodating part 26 position of the second side part II. The protrusion 7 of (I) is located.

Therefore, when assembling the culvert 1 having such a structure with another culvert 20, the protrusion 7 of one culvert 1 is inserted into the receiving portion 28 of the other culvert 20, and the one culvert 1 By inserting the protruding portion 25 of the other culvert 21 into the accommodating portion 9 of the), buckling and shearing can be prevented so that the culverts 1 and 20 can be connected stably.

As a result, by arranging the projections 7 and the receiving portions 9 alternately on the front and rear surfaces of the culvert 1, there is an advantage that only one culvert having the same shape can be manufactured and rotated in both directions for construction.

Again, referring to FIGS. 1 to 3, each corner portion of the passage segment 1 is formed with a haunch portion 11 formed in a diagonal direction. The haunting portion 11 has a triangular cross-sectional shape, and a through hole 15 through which the steel wire W passes in the longitudinal direction is formed.

Of course, the haunting unit 11 may have various shapes such as a square cross section and a semi-circular cross section in addition to the triangular cross section.

Therefore, as will be described later, the steel wire (W) for assembling a plurality of culverts through the through hole 15 can be connected to a plurality of culverts integrally.

In addition, a steel wire fixing hole H1 is formed in the middle of the haunch portion 11. Through the steel wire fixing hole H1, the steel wire W inserted into the through hole 15 may be drawn out to the outside.

That is, as shown in Figure 4, the one end portion 41 of the steel wire (W1) passing through the through hole 40 formed on one side around the steel wire fixing hole (H1) to the tension mechanism 39 (Fig. 10) After tensioning, the steel wire is fixed to the steel wire fixing hole H1 by the anchor 42 and the fixing tool 43.

Then, the other steel wire W2 is inserted into the through-hole 44 opposite, pulled by the tensioning mechanism 39 (Fig. 10), and one end 45 of the steel wire W2 is anchored to the steel wire fixing hole H1. It is fixed by the 46 and the fixing opening 47.

In this state, several culverts can be connected by pulling the steel wire W2 by the tensioning mechanism 39 (FIG. 10).

At this time, between one culvert 1 and the other culvert 20, as shown in Figures 6 to 8, it is constructed by a suitable sealing material 27 to seal between the culverts (1, 20).

As the sealing material 27, a sealant caulking material or a non-shrinkable mortar may be used. Here, the water inflation index 29 and the water expansion rubber ring 52 can be used to prevent water from penetrating around the steel wire W.

That is, the primer (P) is first applied to the entire surface of the concrete formed in the gap between the culverts (1, 20). Then, as shown in Figure 8, the rubber packing 52 is installed.

In this state, by narrowing the gap between the culverts 1 and 20 by tensioning the steel wire W, it is possible to prevent water from penetrating around the steel wire W by the rubber packing 52 and the non-shrink mortar. At this time, it is preferable to apply | coat grease to the steel wire W and to apply it.

As shown in FIG. 5, the steel wire fixing holes H1 are arranged in a zigzag shape up and down with the steel wire fixing holes H2 and H3 of neighboring culverts.

Therefore, when tensioning the steel wire (W), it can be stably connected by the steel wire fixing holes (H1, H2, H3) arranged in a zigzag shape.

In addition, in the above description, the culvert of the manner in which one passage is formed therein has been described, but not only one but also two or more passages may be formed.

Hereinafter, with reference to the accompanying drawings will be described in more detail the process for installing a concrete culvert according to a preferred embodiment of the present invention.

1 to 8, when assembling the concrete culvert proposed by the present invention to form a conduit, first, the trench and the foundation concrete construction is carried out at the position where the conduit will be buried.

And the concrete culvert 1 is installed on this base concrete using a crane etc.

In this state, the steel wire W1 is inserted through the through hole 15 to be discharged into the steel wire fixing hole H1 and fixed with an anchor and a mounting hole.

Then, the other steel wire (W2) is inserted through the steel wire fixing hole (H1), and then discharged to the outside of the culvert (1). At this time, the lower portion of the concrete culvert 1 passes through the steel wire (W4) to discharge to the outside of the culvert (1).

In this state, the other concrete culvert 20 is installed in the front adjacent position of the concrete culvert 1 installed first.

Then, after the primer P is applied to one side of the concrete culvert 1 installed, the water expansion index agent 29 is attached to a predetermined thickness, and the rubber ring 52 is attached.

After attachment of the water-expandable index agent 29 and the rubber ring 52, the front and rear of the concrete culvert 20 to be installed later are rotated and brought into close contact with the front of the concrete culvert 1 first installed.

At this time, the upper steel wire (W2) discharged to the outside from the concrete culvert 1 through the through hole 48 of the other concrete culvert 20 is discharged to the outside of the other concrete culvert 20, the lower The steel wire W4 passes through the steel wire fixing hole H3 formed in the other concrete culvert 20 and is discharged to the outside of the other concrete culvert 20.

In this state, the concrete culverts 1 and 20 are brought into close contact with each other by tensioning the upper and lower steel wires W2 and W4 using the tensioning mechanism 39.

Therefore, the protrusions 5, 7, 13 of the concrete culvert 1 installed first are inserted into the storage part 28 of the concrete 20 installed later, and later in the storage part 9 of the concrete culvert 1 installed first. The protrusion 7 of the installed concrete culvert 20 is inserted.

As the concrete culverts 20, 21, and 31 are in close contact with each other, the water stopper 26 and the rubber ring 52 constructed in the gap are sealed by the tensile pressure of the steel wire.

As a result, it is possible to prevent water from penetrating around the steel wire W by the close contact between the water repellent agent 26 and the rubber ring 52.

As such, after the concrete culverts 1 and 20 are integrally constructed, another concrete culvert 31 is continuously constructed.

That is, after the primer (P) is applied to one side of the concrete culvert 20 installed first, the water expansion index 29 is attached to a certain thickness, and the rubber ring 52 is attached.

And another concrete culvert 31 is installed in the front adjacent position of the other concrete culvert 20 previously installed.

In this state, the upper steel wire (W2) discharged to the outside of the other concrete culvert 20 through the through hole 50 of another concrete culvert 31 to discharge through the steel wire fixing hole (H4), anchor and Secure with mounting holes.

Then, another steel wire W3 is inserted through the steel wire fixing hole H4 and then discharged to the outside of the culvert 31.

At this time, the steel wire (W5) discharged to the lower portion of the concrete culvert 20 is discharged to the outside through another concrete culvert 31.

In this state, the concrete culverts 20 and 31 are brought into close contact with each other by tensioning the upper and lower steel wires W3 and W5 using the tensioning mechanism 39.

Therefore, the protrusions of the concrete culverts 20 installed first may be integrally installed by being inserted into the receiving parts of the concrete 31 installed later and in close contact with each other.

When a plurality of concrete culverts (1,20,31) are integrally connected and constructed by the construction method as described above, when horizontal or vertical loads act on the pipeline, buckling can be prevented and the response to shear loads is reinforced. Can be.

On the other hand, after constructing the concrete culvert as described above in a straight direction, when constructing in a curved direction, a separate concrete culvert suitable for this should be applied.

That is, in Fig. 11 to Fig. 13, concrete culverts suitable for such curved portions are shown. As shown, the curved section culverts 60 and 64 consist of a first curved section culvert 60 and a second curved section culvert 64, such first and second curved section culverts 60 and 64. Are constructed to be in contact with each other to form a constant slope to form a curved portion.

The first curved portion culvert 60 is formed with a concave portion 61 and a protrusion 62 on one side, the inclined surface 63 to form a predetermined angle on the other side. The inclined surface 63 is provided with a plurality of first shear members 66, 67 and 68 formed by injection of non-contraction mortar.

Further, the inclined surface 65 of the second curved portion culvert 64 is in contact with the inclined surface 63 of the first curved portion culvert 60. In addition, a plurality of second shear members 66a, 67a, and 68a are formed on the inclined surface 65 of the second curved portion culvert 64, so that the first shear members 66,67, 68) and correspond to each other.

Therefore, the non-shrink mortar forms a rigid body by injecting and hardening the non-shrink mortar into the first and second shear members 66, 67, 68, 66a, 67a, and 68a to perform the function of the shear key.

To describe these shear members in more detail, the first shear members 66, 67 and 68 may include an upper shear hole 66 recessed in the upper surface of the culvert and two intermediate shears formed in the middle of the culvert. Holes 67 and 74 and lower shear holes 68 formed in the lower part of the culvert;

The upper shear hole 66 is formed with a pair of injection holes 71 into which the non-shrinkage water is injected to communicate with the outside of the culvert. The pair of injection holes 71 are connected to the shear keyway 70.

Therefore, when the non-contraction mortar is injected through the pair of injection holes 71, the non-contraction mortar can be hardened by being supplied to the shear key groove 70.

At this time, the upper shear hole 66a, the intermediate shear hole 67a, and the lower shear hole 68a are also applied to the second shear members 66a, 67a, and 68a corresponding to the first shear members 66, 67, and 68a. Are formed, and the shear holes 66a, 67a, and 68a correspond to the shear holes of the first shear members 66, 67 and 68, respectively.

As a result, when the non-shrink mortar is injected in a state where the first and second shear members coincide with each other, the non-shrink mortar fills the inside thereof, and the non-shrink mortar forms a shear key by curing for a predetermined time.

On the other hand, one length L1 of the first curved portion culvert 60 is formed longer than the other length (L2). Therefore, the inclined surface 63 of the first curved portion culvert 60 has a shape inclined at an angle θ with respect to the horizontal.

In the same way, the second curved portion culvert 64 is formed to have a different length from one side and the other side, so that the inclined surface 65 has a shape inclined at a predetermined angle.

As a result, the curved portions can be formed by constructing the inclined first and second curved portion culverts 60 and 64 against each other.

As described above, the concrete culvert according to the preferred embodiment of the present invention has the following advantages.

First, there is an advantage that can prevent the buckling and shear during the construction of a plurality of culverts by improving the side structure.

Second, when manufacturing a concrete culvert without the need to manufacture a pair of female and female, by implementing a male and female structure in one culvert, when connecting a plurality of culverts, there is no need to manufacture a separate culvert in both directions to one culvert Since construction is possible by turning, there is an advantage that can reduce the culvert manufacturing cost and construction period.

Third, the members located in even order of the concrete culvert has a merit that can be structurally stabilized by staggering the steel wires by staggering the steel wire fixing holes are located one by one because the front and rear surfaces are installed.

Fourth, to prevent corrosion of steel wires, water block around steel wires is used to prevent corrosion of steel wires, and primers are applied before rubber indexing agent is applied to enhance the adhesion of rubber ring and concrete surface to block water inflow. have.

Fifth, the curved section, which is not a linear section, has an advantage in that the side section is manufactured to inject non-contraction mortar to form a shear key to cope with shear and buckling.

The present invention can be variously changed by those skilled in the art without departing from the gist of the present invention claimed in the claims, and is not limited to the specific preferred embodiments described above. .

Claims (8)

A passage segment having a passage formed therein; A first side portion provided on one side of the passage segment and having at least one or more protrusions and an accommodating portion alternately arranged between the protrusions; A second side portion formed on the other side surface opposite to the one side, the protrusion and the receiving portion being arranged respectively; And It is formed on the inner edge of the passage segment, and includes a haunche portion that can pass through the steel wire in the longitudinal direction of the passage segment, The passage segment further comprises at least one curved culvert, The at least one curved portion culvert connects the passage segment on one side and the passage segment on the other side with each other, The at least one curved part culvert includes a first and second curved part culverts, one side of the first and second curved part culverts are formed with recesses and protrusions, the other side is formed with an inclined surface, At least one shear member formed by injection of non-shrink mortar is provided, respectively, wherein the inclined surfaces of the first and the second curved portion culvert contact each other concrete culverts each shear member to form a shear key. According to claim 1, wherein the first side portion includes a protrusion and a receiving portion formed on the horizontal surface of the passage segment side surface, and a protrusion and the receiving portion formed on the vertical surface, when coupled to another passage segment, the first The protrusion of the side part is inserted into the receiving portion of the other passage segment, and the concrete culvert in which the protrusion of the other passage segment is inserted into the receiving portion of the first side portion. The method according to claim 1, wherein after the primer is applied to the first and second side portions, the water agent and the rubber ring are attached to each other to prevent water from penetrating the gap between the concrete and the concrete culverts. Concrete culvert. According to claim 1, The haunch portion is formed through holes in the longitudinal direction can pass through the steel wire, the steel wire can be fixed by forming a steel wire fixing hole on the extension line of the through hole, the steel wire fixing holes When connecting the passage segments of the construction, the concrete culvert is arranged so as to pass through the plurality of steel wire fixing holes one by one arranged in a zigzag shape up and down. The concrete culvert of claim 4, wherein an anchor and a fixing unit are provided in the steel wire fixing hole to fix one end of the steel wire. delete delete The method of claim 1, wherein the shear members include a first shear member provided in the first curved portion culvert, and a second shear member provided in the second curved portion culvert, wherein the first and second shear members are passages It consists of an upper shear hole concave on the upper surface of the segment, two intermediate shear holes formed in the middle of the culvert, and a lower shear hole formed in the lower part of the culvert. Concrete culvert consisting of injection hole and shear keyway to be injected and stored.

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