JP5775394B2 - Railway construction girder joint structure and railway construction girder joining method - Google Patents

Description

  The present invention relates to a joining structure for railway construction girders and a method for joining railway construction girders.

  Conventionally, when installing railroad rails, a temporary girder is constructed on a temporary pile driven into the ground, and an H-shaped steel main girder (hereinafter referred to as a railway construction girder) is placed on the temporary girder. (Refer to Patent Document 1 below). Then, a horizontal girder and a row sleeper are provided so as to be installed on the railroad work girder, and a rail is provided on the row sleeper to constitute a railroad.

  Here, in order to bolt the main girder to the temporary girder, the railway construction girder is fixed to a mounting plate provided with a bolt hole. Then, the railway construction girder may be installed and bolted onto a provisional pile from which anchor bolts are protruded upward in advance.

JP 2001-214405 A

However, it has been difficult to install the railway construction girder fixed to the mounting plate by aligning the anchor bolts and bolt holes of the temporary piles at the site.
Further, when the construction accuracy is poor, the position of the anchor bolt and the bolt hole does not match, so that there is a problem that it takes time and labor to apply the bolt hole again at the site.

  Moreover, in order to facilitate the insertion of the anchor bolt into the bolt hole, there may be a method in which the bolt hole diameter is set larger than the anchor bolt diameter. However, in this case, there is a possibility that the railway construction girder integrated with the mounting plate may move by a difference between the diameter of the bolt hole and the diameter of the anchor bolt in a direction perpendicular to the railway construction girder. Therefore, in order to prevent this, it is necessary to bolt the movement restricting member to the end of the mounting plate at the site. Therefore, as a result, the man-hour for joining the movement restricting member is required, and there is a problem that the man-hour is still required.

  The present invention has been made in view of such circumstances, and has a construction structure for a railway construction girder and a method for joining a railway construction girder that can reduce construction man-hours and can reliably construct the railway construction girder. provide.

In order to achieve the above object, the present invention employs the following means.
That is, the railway girder joint structure according to the present invention includes a base whose upper surface is a receiving surface,
A plate-like member fixed to the receiving surface by first fixing means; and a railway construction girder fixed to the plate-like member, wherein the first fixing means is a first member formed on the plate-like member. A hole, a first bolt having a small diameter with respect to the diameter of the first hole, and being inserted into the first hole from the base; a first nut for tightening the first bolt; It has a bonding material filled and solidified between the one hole portion and the first bolt.

In such a construction structure for a railway construction girder, the construction girder for a railway is joined to the base through a plate-like member by a simple construction such as a bolt connection and a joining material, so the number of construction man-hours can be reduced. .
Further, since the diameter of the first bolt is smaller than the diameter of the first bolt hole, the first bolt is easily inserted into the first bolt hole. Therefore, since it is easy to align the position of the railroad construction girder with respect to the base, the number of construction steps can be reduced. Furthermore, since the joining material is filled between the first bolt hole portion and the first bolt, the construction girder for railway can be reliably constructed.

  Further, in the joining structure for railway construction girders according to the present invention, the plate-like member is fixed to the receiving surface by the first fixing means, the first plate-like member and the second plate-like member. A second plate member fixed by a fixing means, wherein the second fixing means bolts the first plate member and the second plate member, and the second plate member is Girder direction movement permitting means that enables movement in the girder direction with respect to the first plate member is provided.

In such a joint structure for railway construction girders, the railway construction girders can be reliably constructed on the base via the first plate member.
Moreover, the shift | offset | difference of the girder direction of the construction girder for railways after construction can be absorbed by the girder direction movement permission means of a 2nd plate-shaped member.

  Further, in the joining structure for a railway construction girder according to the present invention, the girder-direction movement permitting means includes a second hole portion that is a long hole in the girder direction provided in the second plate member, and the first A second bolt inserted from the plate-like member and having a diameter smaller than the length of the second hole in the spar direction and a second nut for tightening the second bolt are provided.

  In such a joint structure for railway construction girders, the difference between the diameter of the second hole, the girder direction and the diameter of the second bolt is the allowable range of movement of the railway construction girder, so that It is possible to absorb the deviation in the girder direction of railway construction girders.

  In the joining structure for railway construction girders according to the present invention, the joining material is a fast-hardening high-strength grout material.

  In such a joint structure for railway construction girders, the railway construction girders can be joined to the base with high strength in a short time.

  In the railway construction beam joining structure according to the present invention, the plate-like member is formed with a taper that goes downward as it extends in a direction in which the railway construction beam extends.

  In such a joint structure for railway construction girders, the plate-like member can cope with bending when the construction girders for railway bend toward the center in the direction of the girders after construction.

  In addition, a method for joining railway construction girders according to the present invention includes a first bolt attaching step of attaching the first bolts so as to protrude from the receiving surface, and the railway construction girders fixed to the plate-like member. A bonding material filling step that is installed on the receiving surface and is filled with a bonding material between the first hole and the first bolt; and a first bolt tightening step of tightening the first bolt with the first nut. It is characterized by providing.

  In such a method for joining railroad construction girders, since the railroad construction girders are integrated with the plate-like member, the number of construction man-hours can be reduced and the railroad construction girders can be joined. Moreover, after attaching a 1st volt | bolt to a plate-shaped member, a 1st volt | bolt can be fixed with respect to a plate-shaped member by filling and solidifying a joining material between a 1st hole and a 1st bolt. . Furthermore, by tightening with the first nut, the construction girder for railway can be reliably joined.

  According to the joining structure of a railway construction girder and the joining method of a railway construction girder according to the present invention, the number of construction steps can be reduced and the railway construction girder can be reliably constructed.

It is a perspective view of the track using the junction structure of the construction girder for railroads concerning a first embodiment of the present invention. It is the perspective view which decomposed | disassembled and looked at the principal part which shows the joining structure of the construction girder for railways concerning 1st embodiment of this invention. It is a longitudinal cross-sectional view which shows the joining structure of the construction girder for railways which concerns on 1st embodiment of this invention. It is the perspective view which decomposed | disassembled the principal part which shows the joining structure of the construction girder for railways which concerns on the modification of 1st embodiment of this invention. It is a flowchart of the joining method of the construction girder for railways concerning 1st embodiment of this invention. It is the perspective view which decomposed | disassembled and looked at the principal part which shows the joining method of the construction girder for railways concerning 1st embodiment of this invention. It is a horizontal sectional view showing the 1st hole and the 2nd hole concerning the junction structure of the construction girder for railroads concerning a first embodiment of the present invention. It is a horizontal sectional view showing the 1st bolt and the 2nd bolt concerning the joining structure of the construction girder for railroads concerning a first embodiment of the present invention.

(First embodiment)
Hereinafter, a joint structure for a railway construction girder according to a first embodiment of the present invention will be described with reference to the drawings.
First, the railway 2 will be described with reference to FIG.
As shown in FIG. 1, the railway 2 includes a base 11, a pair of railway construction girders 41 provided in parallel to each other in a direction orthogonal to the direction in which the base 11 extends, and the railway construction. A shelf plate 142 provided parallel to the flange 141 in the inside of the girder 41, and a horizontal girder 3 opened in a plurality of upward U-shapes with a predetermined interval between the shelf plates 142; A sleeper 4 disposed in the opening portion and a pair of rails 5 provided on the sleeper 4 in parallel with the railroad work girder 41 are provided.
Here, the base 11 and the railway work girder 41 are joined at the end of the railway construction girder 41 by the joining structure 1 of the railway construction girder 41 according to the present embodiment.
Next, the joint structure 1 of the railway construction beam 41 will be described in detail.
Here, the left-right direction in FIG. 1, which is the direction in which the base 11 extends, coincides with the direction in which the sleepers 4 extend, is referred to as “sleeper direction X”, and is a direction in which the railway construction girders 41 extend. The direction from the upper right to the lower left of 1 coincides with the direction in which the rail 5 extends and is referred to as “rail direction Y”.

  As shown in FIG. 2, the joining structure 1 of the railway construction beam 41 includes a base 11 whose upper surface is a receiving surface 112, and a first plate-like member fixed to the receiving surface 112 by first fixing means 51. 21, a second plate member 31 fixed to the first plate member 21 by the second fixing means 61, and a railway construction girder 41 fixed to the second plate member 31.

  The base 11 is an H-shaped steel with an H-shaped cross section, and is provided on a temporary pile that is driven into the ground (not shown). In addition, the base 11 is provided with four base hole portions 111 that are two bolt holes penetrating in the vertical direction with an interval in the rail direction Y, spaced apart in the sleeper direction X, for a total of four. It has been. The first bolt 151 of the first fixing means 51 described later is inserted into the base hole 111 for details. The base 11 has a flat upper surface and functions as a cradle for a first plate-like member 21 described later.

  The first plate member 21 is formed so that the length of the first plate member 21 in the rail direction Y is substantially the same as the length of the base 11 in the rail direction Y. Moreover, the taper 121 is formed in the rail direction Y edge part in the upper surface of the 1st plate-shaped member 21 at the side which goes to the center part of the railway construction beam 41 so that it may go below toward the center part. Yes. Further, the first plate-like member 21 is formed with a first hole portion 122 of the first fixing means 51 and a counterbore hole portion 123 for the second bolt of the second fixing means 61 which will be described in detail later.

  The first fixing means 51 is a first hole 122 formed in the first plate-like member 21 and a first hole inserted into the first hole 122 having a smaller diameter than the diameter of the first hole 122. A bolt 151, a first nut 153 that tightens the first bolt 151, and a bonding material 155 filled and solidified between the first hole 122 and the first bolt 151 are provided.

  The first hole portion 122 is a vertical through-hole formed at each of the two ends of the first plate-like member 21 in the sleeper direction X with two spaces in the rail direction Y. Further, the diameter of the first hole portion 122 is formed to be larger than the diameter of the first bolt 151, and in this embodiment, the diameter is approximately doubled.

  The first bolt 151 is inserted into the first hole 122 from below the receiving surface 112 of the base 11. Further, the first bolt head 152 which is the head of the first bolt 151 may be fixed by the lower surface of the receiving surface 112 and a weld 156 such as fillet weld shown in FIG.

  The first nut 153 is a hexagonal nut and is provided as a double nut that is doubled in the vertical direction. The first bolt 151 is interposed via a first washer 154 installed on the upper surface of the first plate member 21. Are screwed together. Still, the first washer 154 is formed to be larger than the diameter of the first bolt 151, and in this embodiment is formed approximately three times or more.

As shown in FIG. 3, in the present embodiment, the bonding material 155 is a fast-hardening high-strength grout material having quick-hardness and high strength, and is filled between the first hole portion 122 and the first bolt 151. . Moreover, it solidifies with time.
Here, as the bonding material 155, Pacific Preeurox Super TYPE-10 may be mentioned. As a feature of the product, it is ultrafast and exhibits high strength in a short time, and also exhibits stable strength over the long term. Moreover, it has non-shrinkage and does not generate voids after solidification.

  The second plate member 31 is formed so that the length of the second plate member 31 in the rail direction Y is substantially the same as the length of the base 11 in the rail direction Y. Further, the second plate member 31 is formed with a second hole 131 of a second fixing means 61, which will be described in detail later, and a counterbore hole 132 for a girder for attaching the railway construction girder 41.

  The second fixing means 61 fixes the first plate member 21 and the second plate member 31 and moves the second plate member 31 in the rail direction Y with respect to the first plate member 21. A digit-direction movement allowing means 71 is provided.

  The girder-direction movement permitting means 71 includes a second hole 131 having a long hole in the rail direction Y formed in the second plate member 31, and the rail direction of the second hole 131 inserted into the second hole 131. A second bolt 161 having a diameter smaller than the length of Y and a second nut 163 for fastening the second bolt 161 are provided.

  The second hole 131 is a vertical through-hole formed at each of the two ends of the second plate-like member 31 in the sleeper direction X with two spaces in the rail direction Y. The length of the second hole 131 in the rail direction Y is formed to be larger than the diameter of the second bolt 161.

  The second bolt 161 is inserted into the second hole 131 from the counterbore hole 123 for the second bolt of the first plate-like member 21.

  The second nut 163 is a hexagonal nut that is provided as a double nut that is doubled in the vertical direction. The second nut 163 is attached to the second bolt 161 via a second washer 164 installed on the upper surface of the second plate member 31. It is screwed.

  The railway construction beam 41 is an H-shaped steel having an H-shaped cross section, extends in the rail direction Y, and an end portion is installed on the second plate member 31. The lower flange 141 </ b> A of the railway work girder 41 is provided with a third hole portion 143 that is a vertical through hole at a position corresponding to the counterbore hole portion 132 for the girder. The inserted third bolt 144, third washer 146 and third nut 145 are bolted to the second plate member 31.

(Modification of the first embodiment)
In addition, as shown in FIG. 4, the base 11X shall be comprised with concrete as the joining structure 1X of the construction girder 41 for railways which concerns on 1st embodiment, and a 1st volt | bolt is previously embedded in this base 11X. The anchor bolt 151X may be used.

Next, the joining method which employ | adopted the joining structure 1 of the construction girder 41 for railways is demonstrated.
As shown in FIG. 5, the method of joining the railway construction beam 41 includes the second plate member fixing step S01, the first plate member fixing step S02, the rail member attaching step S03, and the first bolt attaching step S04. And a bonding material filling step S05 and a first bolt fastening step S06.

First, as shown in FIG. 2, in the second plate member fixing step S01, the second plate member 31 and the railway construction beam 41 are fixed.
That is, the railway construction beam 41 is installed on the second plate member 31 so that the counterbore hole portion 132 for the beam of the second plate member 31 and the third hole portion 143 of the railway work beam 41 communicate with each other. To do. Then, the third bolt 144 is inserted from below the counterbore hole portion 132 for the girder, and is tightened by the third nut 145 via the third washer 146 from above the third hole portion 143, so that The plate member 31 is fixed.

Next, in the first plate member fixing step S <b> 02, the first plate member 21 and the second plate member 31 are fixed by the second fixing means 61.
That is, the taper 121 is disposed toward the central portion side of the railway work beam 41 and the second bolt counterbore hole portion 123 of the first plate member 21 and the second hole portion 131 of the second plate member 31. The second plate member 31 fixed to the railway work beam 41 is installed on the first plate member 21 so as to communicate with each other. Then, the second bolt 161 is inserted from below the counterbore hole portion 123 for the second bolt, and tightened with the second nut 163 from above the second hole portion 131 via the second washer 164, The second plate member 31 and the first plate member 21 are fixed.
Here, as shown in FIGS. 7 and 8, the length of the second hole 131 in the rail direction Y is formed larger than the diameter of the second bolt 161, so that it is integrated with the second plate-shaped member 31. The railway work girder 41 that has become can move in the rail direction Y with respect to the first plate member 21.

Next, as shown in FIG. 6, in the railway member attaching step S <b> 03, the shelf plate 142, the horizontal girder 3 and the sleepers 4 are attached to the railway construction girder 41.
That is, the shelf plate 142 is fixed to the web 147 of the railway work beam 41 by welding or bolts. Further, the cross beam 3 is fixed to the shelf plate 142 by welding or bolts. Further, the sleepers 4 are inserted into the portions of the U-shaped openings that are upward with respect to the cross beams 3 and fixed with bolts or the like from the vertical direction.

Next, as shown in FIG. 2, in the first bolt mounting step S <b> 04, the first bolt 151 is protruded from the receiving surface 112 of the base 11.
That is, the first bolt 151 is inserted from below the base hole 111 of the base.

Next, in the bonding material filling step S <b> 05, the first plate-like member 21 integrated with the railroad work girder 41 is installed on the base 11, and between the first hole portion 122 and the first bolt 151. Is filled with a bonding material 155.
That is, the first plate integrated with the railway work girder 41 on the base 11 so that the base hole 111 of the base 11 and the first hole 122 of the first plate-like member 21 communicate with each other. The shaped member 21 is installed and the first bolt 151 is inserted into the first hole 122. Here, as shown in FIGS. 7 and 8, the diameter of the first hole 122 is larger than the diameter of the first bolt 151, so the first hole 122 and the first bolt 151. There is a gap 124 between the two. Here, the bonding material 155 is filled in the gap 124. The filled bonding material 155 solidifies with time.

Next, in the first bolt tightening step S06, the first bolt 151 is tightened with the first nut 153.
That is, the first plate member 21 that is fastened with the first nut 153 from above the first hole portion 122 via the first washer 154 and integrated with the railway work girder 41 and the second plate member 31; The base 11 is fixed.

  Next, in the joining method employing the joining structure 1X of the railway construction beam 41, the anchor bolt 151X is embedded in advance so as to protrude from the receiving surface 112X of the base 11X as the first bolt mounting step S04. Then, the anchor plate 151X is inserted into the first hole 122 of the first plate member 21, and the first plate member 21 is installed on the base 11X. The base 11 is fixed.

In the joining structure 1 and joining method of the railway construction beam 41 configured in this way, the first plate-like member 21 and the second plate-like member 31 can be fixed to the lower part of the railway construction beam 41 in advance. Moreover, since the diameter of the 1st hole part 122 of the 1st plate-shaped member 21 is a larger diameter with respect to the diameter of the 1st bolt 151, the position of the 1st hole part 122 and the 1st bolt 151 can be match | combined easily. Can do. Therefore, since the position of the first hole portion 122 and the first bolt 151 does not match at the site and there is no possibility of reopening the hole, it is possible to join the railway construction beam 41 on the base 11 with a small number of construction steps. it can.
Further, the gap 124 formed between the first hole portion 122 and the first bolt 151 is filled with the bonding material 155 and is solidified with the passage of time. Can be joined.
Furthermore, if a fast-curing high-strength grout material is used as the bonding material 155, high strength can be exhibited in a short time, so that the construction time can be shortened. For example, the predetermined strength can be exhibited in about 15 to 30 minutes.

  Further, since the length of the second hole 131 in the rail direction Y is formed larger than the diameter of the second bolt 161, the railway construction girder 41 integrated with the second plate member 31 is It is possible to move in the rail direction Y with respect to the base 11 integrated with the first plate-like member 21. Therefore, the expansion and contraction in the rail direction Y and the deflection in the rail direction Y due to the temperature change of the railway work girder 41 can be absorbed, and the abnormal deformation of the railway work girder 41 can be prevented.

Moreover, since the taper 121 is provided in the 1st plate-shaped member 21 in the side which goes to the center part of the railway construction beam 41, it can respond to the deflection | deviation of the rail direction Y of the railway construction beam 41, etc. it can.
In the present embodiment, the taper 121 is formed only on one side of the end portions of the first plate-shaped member 21 in the rail direction Y, but is not limited to only one side. For example, when a plurality of railway construction girders 41 are continuously arranged, the first plate-like member 21 is provided on both sides of the end in the rail direction Y of the first plate-like member 21 at the continuous place. It is possible to cope with the bending occurring on both sides in the rail direction Y of the railroad work girder 41 with the gap therebetween.

  In this embodiment, the base 11 and the railway work girder 41 are joined at the end of the railway work girder 41 by the joining structures 1 and 1X. Absent. For example, when a plurality of railway construction girders 41 are continuously arranged, the joint structures 1 and 1X can be provided at the continuous portions. Further, when the railway work girder 41 is provided so as to protrude in the rail direction Y with respect to the base 11, the joint structure 1, 1 </ b> X can be provided in the middle part of the railway work girder 41.

In addition, you may fix the regulating member which consists of a plate-shaped member, for example to the one end or both ends of the sleeper direction X of the 1st plate-shaped member 21 (not shown). Thereby, the construction girder 41 for railways integrated with the first plate-like member 21 can regulate the movement in the sleeper direction X due to vibration of the railway vehicle or the like.
Further, a restricting member may be fixed to one side of the rail construction beam 41 in the rail direction Y (not shown). As a result, it is possible to restrict the railroad work girder 41 from greatly moving in the rail direction Y due to vibration of the railcar or the like.

The first plate member 21 and the second plate member 31 may be integrated into a plate member (not shown).
In this case, the first hole 122 and the second hole 131 are provided in the plate member.
Or it is good also as a structure which provides the 1st hole part 122 in this plate-shaped member, and provides the 2nd hole part 131 in the flange 141A of the lower side of the construction girder 41 for railroads. In this configuration, since the railway work girder 41 itself has the girder-direction movement permission means 71, it can move in the rail direction Y with respect to the base 11.

  In addition, as an Example of this embodiment, it can apply also to the junction location of the foundation part of a girder type home, the junction location of a bridge pier and a collar part, etc.

When the temperature is low, such as in winter, the speed of the joining material 155 is increased by heating the railway construction beam 41, the first plate member 21, the second plate member 31, the base 11 or the joining material 155. Decrease in hardness can be prevented.
Further, by mixing short fibers into the bonding material 155, the bonding strength can be further enhanced.

  Note that the operation procedure shown in the above-described embodiment, various shapes and combinations of the constituent members, and the like are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1, 1X ... Joint structure 11 of the construction girder 41 for railways, 11X ... Base 21 ... First plate-shaped member (plate-shaped member)
31 ... Second plate member (plate member)
41 ... Railway girder 51 ... First fixing means 61 ... Second fixing means 71 ... Girder-direction movement allowing means 111 ... Receiving surface 121 ... Taper 122 ... First hole 131 ... Second hole 151, 151X ... First Bolt 153 ... first nut 155 ... bonding material 161 ... second bolt 163 ... second nut S03 ... first bolt mounting step S04 ... bonding material filling step S05 ... first bolt tightening step

Claims (6)

A railway construction girder joining structure that joins a railway construction girder on a base,
A base whose upper surface is a receiving surface;
A plate-like member fixed to the receiving surface by first fixing means;
A railway construction girder fixed to the plate-like member,
The first fixing means includes a first hole portion formed in the plate-like member and a first hole portion having a small diameter with respect to the diameter of the first hole portion and inserted into the first hole portion from the base. A railway construction girder having one bolt, a first nut for fastening the first bolt, and a joining material filled and solidified between the first hole and the first bolt. Construction. In the joining structure of the railway construction girder according to claim 1,
The plate-like member includes a first plate-like member fixed to the receiving surface by the first fixing means, and a second plate-like member fixed by the first plate-like member and second fixing means,
The second fixing means bolts the first plate-like member and the second plate-like member, and the second plate-like member moves in the spar direction with respect to the first plate-like member. A connecting structure for railway construction girders, characterized by having girder direction movement allowing means. In the joining structure of the railway construction girder according to claim 2 ,
The girder-direction movement permitting means is inserted from the first plate-like member and a second hole portion that is a long hole in the girder direction provided in the second plate-like member, and the second hole portion A joining structure for a railway construction girder, comprising: a second bolt having a diameter smaller than a length in the girder direction; and a second nut for fastening the second bolt. In the joining structure of the construction girder for railroads as described in any one of Claims 1 thru | or 3,
The joining structure for railway construction girders, wherein the joining material is a fast-curing high-strength grout material. In the joining structure of the construction girder for railroads as described in any one of Claims 1 thru | or 4,
The connecting structure for railway construction girders, wherein the plate-like member is formed with a taper that goes downward as it extends in a direction in which the railway construction girders extend. A method for joining railway construction girders, wherein the base construction and the railway construction girders are joined by the joining structure of railroad construction girders according to any one of claims 1 to 5,
A first bolt mounting step of mounting the first bolt so as to protrude from the receiving surface;
Installing the construction girder for railway fixed to the plate-like member on the receiving surface, and filling a bonding material between the first hole and the first bolt;
And a first bolt tightening step of tightening the first bolt with the first nut.

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