KR200187121Y1 - A reinforced concrete mono sleeper - Google Patents

Abstract

The present invention is installed in the concrete sleeper by installing a straight deformed reinforcing bar arranged in a trapezoidal structure, and a spiral reinforcing bar that surrounds and fixes the straight deformed reinforcing bar, and does not require a separate tension force introduction equipment when the sleeper is manufactured, The present invention relates to a reinforced concrete sleeper capable of securing strength and capable of mass-producing various types of sleepers, the present invention comprises a sleeper main body having a rail seating portion on which rails are placed; Sleeper body reinforcing means is provided in the interior of the sleeper main body to maintain the strength, the first member is arranged in the longitudinal direction and arranged in the longitudinal direction, and the second member for winding and fixing the first member; And one side is embedded vertically on the rail mounting portion of the sleeper body provides a reinforced concrete sleeper including a plurality of first fixing means for fixing the rail clip.

Therefore, the present invention eliminates the need for a tensile force introduction facility, which was necessary for the production of conventional PC sleepers, and eliminates the burden of excessive investment in production equipment. Mounting of the material becomes easy. As a result, no additional work is required for demoulding the product, thereby reducing the production input manpower, reducing the material cost of the reinforcing wire and spiral reinforcing wire, and reducing the manufacturing cost since it is easy to process and install. In addition, after the sleeper production is completed, there is no need for a separate after-treatment (cutting and polishing steel wires, filling the tension-filling hole, etc.) and eliminating the process of attaching the transverse pressure band after the sleeper is manufactured, thereby reducing the cost of the sleeper. Since the band is installed during production, concerns about breakage of the bottom edge of the sleeper are eliminated when handling the sleeper.

Therefore, compared with the existing sleepers, this product is a reinforcement concrete sleeper for railway tracks that is significantly cheaper in production, has a beautiful appearance, and is very easy to handle. There is an effector that can do it.

Description

Reinforced concrete mono sleeper

The present invention relates to a reinforced concrete sleeper that maintains rail spacing and distributes the train load transmitted from the rail as an element constituting the railway track, and in particular, concrete is manufactured as a main material, but has a predetermined strength as a railway sleeper. In order to obtain a proper position, the rebar is properly placed in the sleeper, and the fastening device auxiliary material for spooling the rail in the sleeper is inserted. It relates to a reinforced concrete sleeper produced by attaching a transverse pressure band produced separately to the end of the sleeper bottom.

In general, sleepers, which are auxiliary materials placed between rails and railroads, constitute rail tracks, are mainly reinforced concrete products that can withstand train loads because they require a certain strength to distribute the railroad rail loads on rails. Is produced.

Conventional sleepers used in subways in Japan or Korea are not pure reinforced concrete products but have a precast concrete sleeper (P.C) structure applied with the cactus method (Free Tentionning Method). Here, the line tensioning method is a method of inserting the PC steel wire into the concrete placed in the sleeper formwork, and applying a tensile stress to the PC steel wire in the curing process to release and release the tensile stress in the longitudinal direction of the sleeper under the finished product state to be.

This cactus method is mainly applied to the sleeper of the flat shape of the upper part, and in recent years it is necessary to install a spacer for firmly supporting the rail clip, accordingly the sleeper has a wing jaw for supporting the spacer It is manufactured in the shape added to the rail clip installation site. However, there is a problem that the cactus method cannot be applied to the sleepers to which the wing jaw is added as described above, which is inevitably produced by a post-tensioning method for introducing a separate tensile force for each sleeper wing. However, the sleeper to which the post-tensioning method is applied has a disadvantage that the unit production capacity is not only remarkably decreased, but also the price of the product is very high.

On the other hand, fastener inserts, which are auxiliary structures of rail fastening devices, and inserts for lateral pressure bands, which are auxiliary structures for attaching lateral pressure bands, are fixedly installed at appropriate positions in the concrete. After temporarily fixing the mold to the mold, it has a great influence on the production cycle due to the cumbersome work process of releasing the device that is bound to temporarily fix the mold to the mold. In addition, the spacer support brace of the rail mounting seat releases the tension applied to the inside of the sleeper at the moment of converting into a compressive force inside the concrete sleeper, cracking or chamfering phenomenon may appear. In addition, when water enters the fastener insert that is a rail fastener auxiliary structure, there is a risk that corrosion may occur in the bolt inserted into the insert, and also a problem may affect the durability of the insert made of nylon material. have.

Therefore, the present invention was devised to solve the above problems, and on the premise of a product capable of reliably securing the function as a railway sleeper, while satisfying this condition, the railroad is easy to manufacture and the product price is as low as possible. The purpose is to provide a dust-resistant reinforced concrete sleeper.

In addition, the present invention by installing a reinforcing bar made of a straight deformed reinforcing bar arranged in a trapezoidal structure and a spiral reinforcing wire wrapped around the straight deformed reinforcing bar inside the concrete sleeper, there is no need for a separate tension force introduction equipment when the sleeper is manufactured, Another object is to provide a reinforced concrete sleeper that can secure the required strength and is capable of mass production of various types of sleepers.

1a and 1b is a plan view and a front view showing an embodiment configuration of reinforced concrete sleepers according to the present invention.

FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1A; FIG.

Figure 3a and Figure 3b is a front view and a side view showing a detailed configuration of the spiral reinforcing wire that is the main part of the present invention.

Figure 4 is a block diagram of a transverse pressure band that is the main part of the present invention.

Figure 5 is a block diagram of a rail fastening device that is the main part of the present invention.

Figure 6 is a state in which the rail is installed on the reinforced concrete sleepers according to the present invention.

* Explanation of symbols for main parts of the drawings

1: sleeper 2: rail seat

3: first insert 4: rebar

5: first member 6: second member

7: 1st bolt 8: Rail clip support spacer

9: lateral pressure band 10: second bolt

11: drain hole 12: wire coil

13: spiral wire 14: rail

15: Rail clip

In order to achieve the above object, the present invention provides a sleeper body having a rail seating portion in which a rail is placed on both upper sides thereof; Sleeper body reinforcing means is provided in the interior of the sleeper main body to maintain the strength, the first member is arranged in the longitudinal direction and arranged in the longitudinal direction, and the second member for winding and fixing the first member; And one side is embedded vertically on the rail mounting portion of the sleeper body provides a reinforced concrete sleeper including a plurality of first fixing means for fixing the rail clip.

Hereinafter, with reference to the accompanying drawings of Figure 1 will be described an embodiment of the present invention in detail.

Reinforced concrete sleepers according to the present invention has the strength required by the sleepers even without a separate tensile force introduction facility, and implemented to enable mass production, in this embodiment, as shown in Figure 1 rail 14 on the upper side of both sides The rail mounting portion 2 is formed thereon, a trapezoidal sleeper body 1 having a plurality of first inserts 3 embedded therein and the strength of the sleeper body 1 on the rail seating portion 2. Reinforcing bar (4) consisting of a first member (5) installed in its interior and arranged in the longitudinal direction to maintain the second member and a second member (6) for winding the first member (5) to fix it; A first bolt 7 fastened to the first insert 3 of the sleeper body 1 to fix the rail clip support spacer 8, and attached to both outer peripheral surfaces of the sleeper body 1, The second insert 9a is inserted and the sleeper body is pushed when the train is curving. A second bolt 10 fastened to the transverse pressure band 9 and the second insert 9a of the transverse pressure band 9 to fix the transverse pressure band 9 to the sleeper body 1. It consists of.

Here, the sleeper body (1) has a jaw (1c) is formed in a portion extending from the rail seating portion (2) to the center portion side thereof, the rail clip supporting spacer (16) is formed in the square portion of the inner surface of the rail seating portion (2). It has a structure in which a valley (1d) for securely mounted, the rail seating portion 2 of the sleeper body (1) is to have an inclined gradient at a ratio of 1:40 toward the inside of the gauge.

In addition, the bottom portion (1a) of the sleeper body (1) having a trapezoidal shape is as wide as possible within the range that is not excessive in order to be able to transmit the load to be transmitted evenly without difficulty, the bottom of the sleeper body (1) The side surface 1b has a structure in which the surface is vertically processed by the width of the transverse pressure strip 9, thereby enabling the installation of the transverse pressure band 9 smoothly.

The first insert 3 of the sleeper main body 1 is formed with a drain hole 11 extending in the vertical direction to fasten the first bolt (7), the rain water, etc. inside the first insert (3) When infiltrated, it has a structure to serve as a discharger.

The first member 5 of the reinforcing bar 4 is arranged in a trapezoidal composition and consists of a deformed bar for complete binding with concrete. In particular, as shown in FIG. 6, the first member 5 is directly overlapped with a vertical impact load generated during train operation and a horizontal horizontal load acting outside the gauge within a limited range. For example, a deformed steel bar having a diameter of 16 mm) is disposed in two strands at the top and four strands at the bottom thereof, and the second member 6 is formed of a spiral iron wire to surround the first member 5 in a transverse direction. Reinforcement is arranged, but is installed only in a predetermined section of the rail under the train load to ensure sufficient strength required by the sleepers.

The sleeper produced as described above is to maintain the strength of 350kg / ㎠ or more the lower limit of the strength of the railway sleeper. Here, in the present embodiment, the first member 5 uses reinforcing bars having a diameter of 16 in order to have sufficient tensile force, and the spiral second member 6 has a vertical pressure that the sleeper main body 1 receives in the future. Since the wire is directly handled, the shape and spacing according to the initial design must be strictly observed when the wire is processed, and a strict position maintenance is required to prevent contact with the first insert 3 when the rebar and the wire are placed.

Further, the length of the first member 5 and the processing specifications of the helical second member 6 are strictly controlled so as not to be insufficient or exposed out of the concrete surface.

The rebar is to play a very important role in maintaining the strength of the sleeper body (1).

By the arrangement of the reinforcing bar 4 as described above, the sleeper main body 1 can be formed to have a cross-sectional thickness of a predetermined section of the center portion smaller than the cross-sectional thickness of the rail mounting portion 2 on both sides, accordingly Can be reduced. Since the central part of the sleeper body (1) does not receive the train load, the strength can be maintained even by the first member (5) of the reinforcing bar 4 alone, and the rail seating portion (2) receives the train load directly. Since the first member 5 and the helical second member 6, which are straight deformed rebars, are coupled to each other so as to have sufficient strength required by the sleepers.

Meanwhile, as shown in FIG. 5, the wire coil 12 is wound around the first insert 3 of the sleeper body 1, and the spiral wire 13 is again wound on the outer circumferential surface of the wire coil 12. ) Is wound so that the fastening strength of the first insert 3 is increased. That is, since the wire coil 12 and the spiral wire 13 are completely bound to the concrete at the time of making the sleepers, even if the fastening force is applied to the first insert 3 by applying an excessive force to the first bolt 7, The first insert 3 is not idle.

Arrows indicated by dashed lines in FIG. 6 indicate a maximum section of the train load transmitted from the rail to the sleeper, and shows that the spiral second member is installed as much as the section of the axle load to the sleeper.

Referring to the manufacturing state of the subject innovation configured as described above are as follows.

First, the quality of concrete is very important to be a reliable sleeper product. First of all, as the basic matters to determine the quality of concrete, the mixing ratio of concrete materials must be followed exactly, and good aggregates must be used. As shown in the design standard specification, the slump value is 0 cm. It should be maintained so that material separation does not occur during compaction.

Compaction of concrete is performed by the form vibration compaction, not rod compaction, so that the bibeam with a slump value of 0 cm can be smoothly compacted, and the first insert 3 and the transverse pressure band 9 during compaction work Take special care not to cause any change in the position of the and to take appropriate action if necessary.

In addition, before filling the concrete blended into the sleeper frame, the reinforcing bar 4 made of the first and second members 5 and 6 is installed in the sleeper frame. Then, the second bolt 10 is fixed to the bottom of the sleeper main body 1 by a predetermined transverse pressure band 9 in a state where the predetermined bolt is inserted. At this time, the outer surface of the transverse pressure strip (9) to be in close contact with the mold surface completely when the concrete is placed in the position of the transverse pressure band (9) or the concrete residue on the outer surface of the transverse pressure band (9) Minimize sticking cases.

In addition, a careful compaction is required so that the second insert 9a inserted and fastened to the transverse pressure band 9 can be completely embedded and fixed in concrete.

The rail clip (15) supported by the rail clip support spacer (8) after curing is produced by curing the wire coil (12) and the spiral wire (13) in a state of being embedded in the first insert (3). When the first bolt (7) is inserted into the sleeper main body (1), the first insert (3) does not go undesired. And, the height of the bottom of the sleeper after the concrete is finished to be kept constant at a predetermined height, and furthermore, the bottom side of the lower portion of the rail directly underneath should be in close contact with the anti-vibration pads and finish smoothly using a trowel.

The present invention produced by the above configuration is a reinforced concrete product does not require additional equipment such as tensioner, which was necessary for the production of existing products (P.C Sleeper), and the manufacturing process is simple and does not require highly skilled workers. In addition, it is possible to significantly shorten the production cycle by enabling the production of the sleeper without temporarily inserting the rail fastening device auxiliary material inserted into the sleeper and the insert holder for the transverse pressure band binding to the mold.

In addition, since the present invention is not a P, C product but a pure reinforced concrete structure, no separate force is applied to the cross section before the sleeper, so there is no fear of deformation of the basic shape. The first member and the helical second member have strength to withstand the external pressure applied due to the train running. In addition, in the case of PC Sleeper, there was a labor cost burden due to unnecessary additional process by attaching bolts separately after completing the production of sleepers, but this product was bound at the same time during the production of sleepers. Not only does the burden go away, it is also effective in preventing end edge breakage when the sleeper moves.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various permutations and modifications can be made without departing from the technical spirit of the present invention. It will be apparent to those who have

As described above, according to the present invention, the tension force introduction equipment that was necessary for the conventional PC sleeper is not required, and the burden of excessive investment of the manufacturing equipment is eliminated, and the production process is simplified and the production cycle is shortened, thus the efficiency is doubled and manufactured. It is easy to mount the auxiliary material buried at the time of construction. Due to this, no additional work is required for demoulding the product, thereby reducing the input labor for manufacturing production, reducing the material cost of the reinforcing steel and spiral reinforcing steel wires, and reducing the manufacturing cost since the processing and installation are easy. In addition, after the sleeper production is completed, there is no need for a separate after-treatment process (cutting and polishing steel wire, filling the tension force introduction hole, etc.) and eliminating the process of attaching the transverse pressure band after the sleeper is manufactured, thereby reducing the cost of sleeper Since the yellow belt is installed during production, concerns about breakage of the bottom edge of the sleeper are eliminated when handling the sleeper.

Taken together, when compared with the existing sleepers, the proposed design is a reinforcement concrete sleeper for railway tracks, which is significantly cheaper in production, has a beautiful appearance, and is very easy to handle. There is a permanent effect.

Claims (9)

Sleeper body having a rail seating portion on which the rail is placed; Sleeper body reinforcing means is provided in the interior of the sleeper main body to maintain the strength, the first member is arranged in the longitudinal direction and arranged in the longitudinal direction, and the second member for winding and fixing the first member; And One side thereof is embedded vertically on the rail seating portion of the sleeper body and a plurality of first fixing means for fixing the rail clip Reinforced concrete sleepers, including. The method of claim 1, The first member of the sleeper body reinforcing means is arranged in a trapezoidal structure, made of reinforced concrete sleepers. The method of claim 1, The second member of the sleeper body reinforcing means is formed of a trapezoidal spiral iron wire, reinforced concrete sleepers installed in a predetermined section of the rail directly below. The method according to any one of claims 1 to 3, Reinforced concrete sleepers having a slope gradient at a ratio of 1:40 toward the inside of the gauge. The method according to any one of claims 1 to 3. The sleeper body is The cross-sectional thickness of the predetermined section of the central portion is formed to be smaller than the cross-sectional thickness of the rail mounting portion on both sides, the jaw is formed in a portion extending from the rail seating portion to the center portion side, and the rail clip supporting spacers are seated on the square portion inside the rail seating portion. Reinforced concrete sleepers for ribs. The method according to any one of claims 1 to 3, It is formed through the sleeper body from the lower side of the first fixing means, the drain hole for discharging the water penetrated by the first fixing means to the lower part of the sleeper body Reinforced concrete sleepers that include more. The method according to any one of claims 1 to 3, Lateral pressure bands attached to both outer circumferential surfaces of the sleeper main body so as to absorb the pressure that the sleeper main body is pushed during the curve running of the train; Second fixing means for fixing to the sleeper body provided at each predetermined position of the transverse pressure band Reinforced concrete sleepers containing more. The method according to any one of claims 1 to 3, The first fixing means A first insert vertically embedded in the rail seating portion of the sleeper body, Reinforced concrete sleepers comprising a first bolt that penetrates the rail clip to the first insert. The method of claim 8, A coil wire installed on an outer circumferential surface of the first insert to prevent the first insert from being lost due to the fastening force of the first bolt; Spiral wire wound around the outer circumferential surface of the coil wire Reinforced concrete sleepers containing more.