JPH09296415A - Balustrade for concrete wall and road side wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a baustrade for a wall and a road side wall which are suitable for the end of a road and which reduce the influence to the road at the time when a car has bumped against the wall and the shock against the car. SOLUTION: An inverted T-shaped fixing member 12 is fixed on a concrete floor slab 11 by anchor bolts 15. Belleville springs 16 and rigid rubber sheets 18 are provided between the fixing member 12 and the fixing nuts 17. A vertical insertion hole 6 in which the upper part of the fixing member 12 is inserted, is formed at the lower face 2A of the wall body 2. And a horizontal insertion hole 9 crossing the vertical insertion hole 6 is formed at the side face of the wall body 2. A connection member 20 is inserted from the horizontal insertion hole 9 into the fixing member 12 and a filling material 35 is charged into the vertical insertion hole 6. Even when a car bumps the wall body 2, the belleville springs 16 and the rigid rubber sheets 18 are elastically deformed and the wall body 2 is tilted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete wall balustrade and a road side wall provided on a bridge or a road.

[0002]

The guard fence is provided mainly to prevent a vehicle deviating from the driving lane from departing from the road or into an oncoming lane, and must have a sufficient deviation preventing effect. I have to.
Further, in an emergency situation such as a brake trouble, it is also used for making an emergency stop by rubbing the vehicle against a fence, and sufficient stability and impact strength are required.
Further, it is required to smoothly return the vehicle to the lane. Further, concrete guard fences having excellent strength and durability have been widely used in place of the conventional steel guard fences.
In Japanese Patent No. 1821 (Jpn. Pat. Appln. No. 63-88799), fixing means are provided on the lower portions of both sides of the protective wall body, and the fixing means is fixed to the roadbed through the fixing means (the same microfilm, p.
(4 lines) A concrete protective wall is known, and as a means for improving the strength of a concrete guard fence, Japanese Utility Model Publication No. 6-57918 (Publication No. 5-1258).
No.) concrete guard fence, a pipe made of PVC is embedded in the upper part of the guard fence, and a PC steel material, which is a lateral fastening member, is inserted into the pipe (Practical application 5-12).
No. 58 microfilm stage 0011), its PC
A concrete guard fence in which tension is applied to the concrete guard fence with steel is known, and this concrete guard fence is fixed to a concrete foundation by inserting anchor bolts into mounting pipes provided on the lower parts of both sides (the same number 0013). Also, both sides in the width direction of the guard fence are fixed to the foundation with anchor bolts. Further, in Japanese Patent Publication No. 6-29492, leg portions protruding laterally are formed on both sides in the width direction of the protective wall block,
It is proposed that an anchor receiving hole is provided in this leg portion and an elastic body is sandwiched between the anchor bolt receiving hole and the anchor bolt fixing nut.

By the way, in the above concrete protective wall,
Both sides in the width direction are fixed to the roadbed by fixing means, and in the concrete guard fence and the protection wall block,
Since both sides in the width direction are fixed to the foundation with anchor bolts, it is not possible to fix one side in the width direction, for example, where there is a restriction on the installation space such as the road shoulder at the end of the road, bridges, etc. It cannot be used in place of a balustrade on the edge. Further, in the construction procedure, when anchor bolts are fixed to the road surface and then the guard fence is hung and installed, it is expected that the work of aligning the anchor bolts on both sides with the anchor receiving holes will be complicated.

Therefore, although different from the one using anchor bolts, Japanese Utility Model Publication No. 58-171914 (Japanese Utility Model Application No. 5).
No. 8-37009), a guard fence for parapets on expressways (Microfilm of Japanese Patent Application No. 58-37009, page 12, lines 9-10) is proposed and shown in FIG. As shown in the figure, a hole is made in the center of the protective wall in the width direction, and a vertical rod-shaped member is inserted into this hole and the paved road surface. The upper and lower ends of the rod-shaped member are placed inside the protective wall and on the lower surface of the paved road surface. Since it is fixed and the protective wall is fixed to the paved road surface, there is a problem that the installation work becomes complicated and costly.
Since the lower end of the rod-shaped member is fixed on the lower surface of the paved road surface, it cannot be used on an ordinary road or an end of a road formed on the top of the embankment. Moreover, since all of them are for rigidly connecting the guard fence to the roadbed, for example, as shown in FIG. 13, a concrete floor slab 102 is provided on a girder 101 in the length direction of a bridge or the like. If the road surface 103 is composed of the upper surface of the concrete floor slab 102, and a guard fence 104 is provided as a balustrade at the end of the road surface 103, and the guard fence 104 is rigidly connected integrally with the steel members 105, 105 in the vertical direction. The moment caused by the collision of the vehicle with the guard fence 104 may be concentrated on the road surface 103 above the girder 102, and a crack K may be generated there. At the same time, the impact of the collision vehicle becomes large.

Therefore, the present invention is suitable for use at the end of a road, etc., the wall main body becomes sound and strong, and the impact on the floor slab and the impact of the vehicle at the time of collision can be mitigated. The purpose is to provide a roadside wall.

[0006]

According to a first aspect of the present invention, there is provided a fixing member which is erected on a foundation, a vertical insertion hole which is formed in a lower surface of a wall body and into which an upper portion of the fixing member is inserted, and the wall. A lateral insertion hole formed in a side surface of the main body and intersecting the vertical insertion hole; a connecting member inserted into the horizontal insertion hole; and an insertion hole formed in the fixing member and through which the connecting member is inserted. Insert the upper part of the fixing member into the vertical insertion hole,
By inserting the side wall of the wall body into the horizontal insertion hole into the connecting member, it is possible to install it on the end of the road, and it is not necessary to install an anchor on the road side of the wall body, and in addition, the vertical Since the fixing member is inserted into the insertion hole, the positioning work at the time of hanging can be facilitated.

According to a second aspect of the present invention, the fixing member has a fixing portion that is fixed to the foundation and an insertion portion that is inserted into the vertical insertion hole, and the fixing portion is fixed to the foundation by an anchor bolt. At the same time, an elastic member is provided between the head of the anchor bolt and the upper surface of the foundation, and the fixing member is fixed to the anchor bolt previously fixed to the new foundation, or the anchor bolt is attached to the existing foundation. To fix the fixing member. And even if the vehicle collides with the wall body,
The elastic member provided between the head of the anchor bolt and the upper surface of the foundation is elastically deformed, whereby the impact on the road side and the impact of the colliding vehicle are mitigated.

According to a third aspect of the present invention, a joint portion is provided between the wall main bodies adjacent to each other in the lengthwise direction, and the plurality of wall main bodies are tension-integrated by the PC steel material in the lengthwise direction. Since the wall main bodies lined up via the joints are tension-integrated by the PC steel material, when the wall body tilts due to a vehicle collision and a force is applied in the direction in which the joints open, the tension force of the PC steel material is effective against this. It is possible to suppress the tilting by acting on.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 11 show a first embodiment of the present invention, in which a concrete wall balustrade and a road side wall 1 are shown in FIG.
As shown in the cross-sectional view of FIG. 1, a wall main body 2 that slightly expands downward is provided, and the wall main body 2 is made of high-strength concrete precast concrete. A predetermined angle θ, which is a horizontal inclination angle, is 75 on both sides of the wall body 2.
Flat inclined surfaces 3 and 3 that form an angle of not less than 90 degrees are formed, and a reinforcing bar (not shown) is arranged inside the wall body 2. In this example, the wall body 2 has a height of 1 m (meter),
The length is about 3 meters. Further, as shown in FIG. 1, one inclined surface 3 on the right side of the drawing is formed to have a smaller predetermined angle θ than the other inclined surface 3. On the lower part of the one flat inclined surface 3, a leg portion 4 protruding laterally is provided,
The leg portion 4 has a vertical surface 4B below the inclined surface 4A. Also, a vertical surface 5 is provided below the other flat inclined surface 3.
To form

On the lower surface 2A of the wall main body 2, a plurality of groove-shaped vertical insertion holes 6 provided at approximately the center in the width direction and a plurality of lower surface grooves 7 are formed in the length direction of the wall main body 2 to form a continuous vertical direction. As shown in FIG. 1, the insertion hole 6 and the lower surface groove 7 have an inverted T-shaped cross section. Further, a concave portion 8 is formed on the inclined surface 4A of the leg portion 4, and a lateral lateral insertion hole 9 is formed in the concave portion 8. The lateral insertion hole 9 has a substantially square front shape. It intersects with the center of the vertical insertion hole 6 in the longitudinal direction. Further, the wall body 2 is provided with a hole for communicating the upper portion of the inclined surface 4A of the leg portion 4 with the upper portion of the vertical insertion hole 6, and the hose 10 serving as a filler injection hole exposes the upper end thereof. Then insert and place. Also, as shown in FIG.
Tapered portions 6A that expand downward are formed on both edges of the vertical insertion hole 6 in the longitudinal direction. Furthermore, FIG.
As shown in FIG. 1, an air vent hole 10A is formed to connect the upper portion of the inclined surface 4A of the leg portion 4 and the upper portion of the vertical insertion hole 6 to each other. The air vent hole 10A may be formed by a hose.

The wall body 2 is provided at the end of the road R,
In this example, concrete floor slabs such as bridges that form the foundation
A road R is constituted by 11, and the wall main body 2 is provided as a balustrade at an end portion of an upper surface 11A of the concrete floor slab 11, and an end surface 11B in a vertical direction is formed at an end portion of the concrete floor slab 11. The concrete floor slab 11 is made of cast-in-place concrete or precast, and has an upper surface 11A.
A fixing member 12 is provided upright in the vertical direction so as to correspond to the vertical insertion hole 6 and the horizontal insertion hole 7. The fixing member 12 is a metal inverted T-shaped metal fitting integrally provided with a plate-shaped insertion portion 13 loosely inserted in the vertical insertion hole 6 and a plate-shaped fixing portion 14 fixed to the floor slab 11. Then, the insertion portion 13 is provided with a rectangular insertion hole 13A corresponding to the lateral insertion hole 6, and anchor holes 14A into which the anchor bolts 15 are inserted are formed on both sides of the fixing portion 14 in the width direction. There are multiple holes. The anchor bolt 15 is a threaded rod 15
A fixed nut 17 having a head is screwed onto the screw rod 15A. Further, an elastic member is provided between the fixing nut 17 and the fixing portion 14, and a disc spring 16 such as a spring washer and a hard rubber sheet 18 are provided as the elastic member as shown in FIG. An elastic sheet member 19 such as a sponge that also serves to adjust the height is provided between 14 and the upper surface 11A of the floor slab 11. It should be noted that FIG. 2 shows a vertical hole 11 formed in the floor slab 11.
By inserting a tubular body 15B forming a part of the anchor bolt 15 into T, inserting an enlarged tip portion 15C into the tubular body 15B, and screwing the screw rod 15C, the enlarged tip portion 15C is enlarged. Although the hole-in-anchor is shown, a chemical anchor or the like can be used, or the fixing member 12 can be fixed by an anchor penetrating the floor slab 11. A connecting member 20 made of a metal square rod is inserted into the lateral insertion hole 9 and the insertion hole 13A, and the cross-sections of the lateral insertion hole 9 and the insertion hole 13A are larger than the connecting member 20.

A PC steel material 21 as a lateral fastening member is arranged in the lengthwise direction of the wall body 2, and the PC steel material 21 is a steel sheath 21.
A or the one placed in the duct, the PC steel material
Reference numeral 21 is a stranded wire of PC steel wire or the like, and the outer periphery of the PC steel material 21 is rustproofed with epoxy resin and rustproof PC steel material. Further, the fixing tools 22 are provided on both sides of the PC steel material 21.
The fixing device 22 is provided with a sleeve 23 having a tapered hole 23A therein, and a truncated cone-shaped clip 24 whose front side is pressed against the tapered hole 23A.
A crimp hole 25 having a plurality of protrusions in the circumferential direction is provided at the center of the, and four notches communicating with the crimp hole 25 are provided.
25A is formed, the fixing tool 22 is used via a pressure plate 26 having a hole, and the pressure-bonding hole 25 having the protrusion is the PC.
It is crimped to the outer circumference of the steel material 21. Further, the PC steel material 21 is inserted through the widthwise center of the upper portion of the wall body 2,
As shown in FIG. 6, in the overlapping portion 27 where the 21 and 21 are struck, the sheath 21A is formed on both sides in the width direction, and the end portions 21T and 21T of the PC steel materials 21 and 21 are connected to the wall main bodies 2 and 2, respectively. It is exposed in the fixing recesses 2B, 2B formed on the upper surface of the. The fixing recesses 2B and 2B are formed on both sides of the upper surface of the wall main body 2 in the length direction, and the fixing recesses 2B and 2B are provided between the wall main bodies 2 having the fixing recesses 2B and 2B. A plurality of wall bodies 2 that do not have the above are arranged, and the overlapping portions 27 are not formed in these wall bodies 2. Further, on the end face in the length direction of the wall main body 2, a protrusion 28 and a recess 29 which engage with each other are provided.
And a joint portion 30 is formed by filling a joint material 33 between the adjacent wall bodies 2 and 2, and a space corresponding to the sheath 21A is formed between the protrusion 28 and the recess 29. The sponge packing 31 is interposed between the PC steel material 21 and the packing 31.
A hole 32 is formed to pass through.

Further, between the lower surface 2A of the wall body 2 and the upper surface 11A of the concrete floor slab 11, elastic packing members 34, 34 made of rubber or the like are arranged on both sides in the width direction of the wall body 2, A lower surface space 36 for filling the filling material 35 is formed between the elastic packing materials 33, 33 on both sides.

On the vertical surfaces 4B and 5 of the wall body 2, a plurality of lateral female screw portions 41 are formed by means of embedded inserts, and bolts 42 are screwed into the female screw portions 41 so that the angle steel is formed. Is fixed to the jig 43, and a vertical height adjusting bolt 44 is screwed into a nut fixed to the jig 43. Between the lower end of the height adjusting bolt 44 and the upper surface 11A of the floor slab 11. A support plate 45 made of a steel plate or the like is laid on this.

Next, the construction of the concrete wall balustrade and the road side wall 1 will be described. The wall balustrade and the road side wall 1 of the present invention are constructed at the time of new construction of the road R and the existing road R.
First, a vertical hole 11T is formed in the floor slab 11 by a punching machine (not shown) such as a drill, and the fixing member 12 is fixed by an anchor bolt 15. Then, the elastic packing materials 33, 33 are arranged on both sides, the wall main body 2 is lifted, the vertical insertion hole 6 is aligned with the insertion portion 13 of the fixing member 12, and the wall is hung down. In addition, as shown in FIG. 6, the ridges 28 and the concave ridges 29 should not overlap with each other, and as shown in FIG.
Matched with 29A.

After the plurality of wall bodies 2 are temporarily installed on the floor slab 11 in this way, the connecting member 20 is inserted from the recess 8 into the lateral insertion hole 9 and is inserted into the insertion hole 13A, whereby the floor is formed. Edition
The wall body 2 is connected to 11. Next, the jig 43 and the height adjusting bolt 44 are set on the wall main body 2, and a plurality of wall main bodies 2 arranged side by side are set.
After adjusting the height of 2 and the distance between the joint and the joint portion 30, the joint portion 30 is filled with a joint material 33 such as non-shrink mortar. In this case, since the cross-sections of the lateral insertion hole 9 and the insertion hole 13A are formed to be larger than that of the connecting member 20, the height and passage of the wall body 2 can be adjusted after the connecting member 20 is inserted.
Moreover, since there is a gap between the vertical insertion hole 6 and the insertion portion 13,
The position can be adjusted in the width direction and the length direction. The jig 43 and the height adjusting bolt 44 may be set in the factory,
It may be after hanging. After hardening of the joint material 33, FIG.
As shown in, the end 21 of the adjacent PC steel material 21, 21 '
Sheath 21 that intersects T and 21T 'like a cross
Inserted through A and 21A, respectively, an overlapping portion 27 where end portions 21T and 21T 'intersect is formed. The PC steel material 21 'having the end portion 21T' has the same structure as the PC steel material 21 having the end portion 21T. Then, fix the end 21T in the fixing recess 2B to the pressure plate.
26 and a clip 24 in which the sleeve 23 is combined, and the inserted end 21T is pulled obliquely upward with a predetermined tension force by a jack (not shown) or the like, so that the plurality of wall bodies 2 Apply tension in the length direction. In this case, the clip 24 is attached to the taper hole 23 of the sleeve 23.
While being cut into A by a wedge action, the crimp hole 25 provided with the notch 25A is crimped to the end 21T to fix the end 21T. Then, after fixing, the fixing recess 2B is filled with a filler 35 such as non-shrink mortar to finish flush with the upper surface of the wall body 2.

After the plurality of wall bodies 2 are tension-integrated with the PC steel material 21 in this way, and then the filling material 35 such as non-shrink mortar is filled from the hose 10, the filling material 35 is inserted vertically and horizontally. The holes 9 are filled, and further the lower space 36 is filled. The filling material 35 is also filled in the gap between the insertion hole 13A and the connecting member 20, and the filling material 35 is cured, so that the floor slab is cured.
The wall body 2 is fixed to 11. In this case, since the air vent hole 10A is formed in the wall body 2, the filling material 35 is smoothly filled. After the filling work into the lower space 36, the portion of the hose 10 protruding from the inclined surface 4A is removed by cutting or the like as shown in FIG. 1, and after the filling material 35 in the lower space 36 is cured. , Remove the bolt 42, female thread 41
Fill with a filler 36 to finish. Also, the filling material in the recess 8
Fill 35 to finish the inclined surface 4A flush. In the figure,
46 is a pavement layer.

In this way, the center of the wall body 2 is fixed to the fixing member.
By fixing with 12 and the connecting member 20, the wall balustrade and the road side wall 1 can be constructed at the end of the road R, and the fixing member and the like are not exposed at all on the road R side of the wall body 2. Then, even if a vehicle traveling on the road R collides and an impact force F is applied to the wall main body 2 and a force for tilting the wall main body 2 is exerted, the elastic member is elastically deformed, so that the floor slab 11 constituting the road R is formed. It is possible to alleviate the moment applied to the vehicle and the cushion spring 16 and the hard rubber sheet 18, which are elastic members, to cushion the impact on the collision vehicle. It will be strong and sound. Further, when the wall body 2 that the vehicle collides with is tilted, the joint portion 30 expands, but the tension of the PC steel material 21 inserted in the upper portion of the wall body 2 can suppress the expansion of the joint portion 30. The PC steel material 21 acts as a spring in the contracting direction.

As described above, in this embodiment, according to claim 1, a fixing member which is erected on the concrete floor slab 11 as a foundation.
12 and a vertical insertion hole 6 formed in the lower surface 2A of the wall body 2 for inserting the insertion portion 13 which is an upper portion of the fixing member 12, and a horizontal direction formed in the side surface of the wall body 2 and intersecting the vertical insertion hole 6. Since the horizontal insertion hole 9, the connecting member 20 to be inserted into the horizontal insertion hole 9, and the insertion hole 13A which is formed in the fixing member 12 and allows the connecting member 20 to pass therethrough, are provided in the vertical insertion hole 6. Insert the upper part of the fixing member 12 into the lateral insertion hole 9 from the side surface of the wall body 2
By inserting it into the road 20, it becomes possible to install it on the end of the road R, and it is not necessary to provide an anchor on the road R side of the wall body 2, and moreover, a fixing member to the vertical insertion hole 6 formed in the lower surface 2A. Since 12 is to be inserted, as in the past,
Unlike the method of fixing both sides in the width direction with anchor bolts, the method of fixing at the widthwise center within the width of the wall body 2 facilitates the positioning work at the time of hanging.

As described above, according to this embodiment, the second aspect
Corresponding to, the fixing member 12 has a fixing portion 14 that is fixed to the floor slab 11 that is the foundation, and an insertion portion 13 that is inserted into the vertical insertion hole 6,
The fixing portion 14 is fixed to the floor slab 11 by the anchor bolt 15, and the fixing nut 17 that is the head of the anchor bolt 15 and the floor slab are used.
Since the disc spring 16 and the hard rubber sheet 18 which are elastic members are provided between the upper surface 11A and the upper surface 11A, the fixing member 12 is fixed to the anchor bolt 15 which is previously fixed to the new foundation,
Alternatively, it is fixed to the existing foundation with anchor bolts 15.
Even if the vehicle collides with the wall body 2 that can fix 12 and is fixed to the foundation by the fixing member 12, the elastic member provided between the fixing nut 17 and the upper surface 11A of the floor slab 11 is elastically deformed. The wall body 2 tilts, and the impact on the road R side and the impact of the colliding vehicle can be mitigated.

Further, in this embodiment, as described above, the joint portion is provided between the wall main bodies 2 adjacent to each other in the lengthwise direction according to claim 3.
30 is provided, and a plurality of wall bodies 2, 2 ...
Since the tension is integrated by the 21, a plurality of wall bodies 2, 2 ... Having joints 30 between the wall bodies 2, 2 adjacent in the length direction are tensioned by the PC steel material 21 in the length direction. The wall bodies 2, which are integrated and are arranged side by side through the joint portion 30,
Since the PC steel materials 21 are integrally tensioned with each other, when the wall main body 2 tilts due to the collision of the vehicle and a force is applied in the direction in which the joint portion 30 opens, the tension force of the PC steel materials 21 effectively acts on this. And tilt can be suppressed.

Further, as an effect of the embodiment, packing materials 34, 34 are arranged on both sides in the width direction of the wall body 2 between the lower surface 2A of the wall body 2 and the upper surface 11A of the floor slab 11 as a base. The lower space 36 is formed between the packing materials 34 on both sides, and the wall body 2 is formed with a hose 10 serving as a filler injection hole for communicating the vertical insertion hole 6 with the side surface of the wall body 2. From the hose 10 by the filling material 35 filled with the fixing member
The wall body 2 can be firmly fixed to the floor slab 11 via 12 and the connecting member 20, and the hose 10 is obliquely provided, and the hose 10 is connected to the upper portion of the vertical insertion hole 6. Therefore, the filling material 35 can be satisfactorily filled.

As an effect of the embodiment, the vertical insertion hole 6
Since the taper portions 6A, 6A that expand downward are formed on both edges in the length direction of, the insertion arrangement of the insertion portion 13 into the vertical insertion hole 6 can be facilitated. Further, the connecting member 20
Since the cross-sections of the lateral insertion hole 9 and the insertion hole 13A are formed larger, the work of inserting the connecting member 20 can be easily performed, and the height and the passage of the wall body 2 can be adjusted after the connecting member 20 is inserted. Moreover, since there is a gap between the vertical insertion hole 6 and the insertion portion 13, the position adjustment of the wall body 2 in the width direction and the length direction can be easily performed. Furthermore, at the boundary between the PC steel materials, since the overlapping portion 27 is formed in one wall body 2 so that the end portions 21A and 21A 'of the PC steel materials 21 and 21' are sufficient, the tension force between the adjacent wall bodies 2 is increased. It is possible to apply tension over its entire length without interruption. Further, since the female screw portion 41 is formed in the wall body 2 in advance by the embedded insert, the height adjusting bolt 44 can be easily used. Furthermore, since the wall body 2 is molded from high-strength concrete, impact resistance is improved. Further, since the tip of the hose 10 is provided on the road R side, the filling work of the filling material 35 can be easily performed from the road R side. Further, since the lower surface groove 7 is formed on the lower surface 2A of the wall body 2, the fixing member
It is possible to store the fixed portions 14 of 12 and the upper portions of the anchor bolts 15, and since it is not necessary to construct a groove or the like on the upper surface 11A of the floor slab 11, it is suitable for restoration on an existing road. .

FIG. 12 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. As shown in FIG. Only the disc spring 16 such as a spring washer that is an elastic member is used. Also in this example, even if the vehicle collides with the wall body 2, the fixing nut 17 that is the head of the anchor bolt 15 and the upper surface 11A of the floor slab 11 are used. By elastically deforming the disc spring 16 as an elastic member provided between the walls, the wall body 2 tilts, and the impact on the concrete floor slab 11 forming the road R and the impact received by the colliding vehicle can be mitigated. .

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the shape, size, size, etc. of the wall body can be appropriately selected. In addition, the elastic member and the elastic sheet material, as long as they have elasticity and contractility,
Various types can be used. Further, the filler is not limited to non-shrink mortar, and various curable fillers can be used. The wall body can be provided not only on the floor slab but also on various roads. Further, the hard rubber sheet 18 may be formed in a ring shape and inserted into the anchor bolt 15.

[0026]

According to the first aspect of the present invention, there are provided a fixing member which is erected on the foundation, a vertical insertion hole which is formed in the lower surface of the wall body and into which the upper portion of the fixing member is inserted, and a side surface of the wall body. A horizontal insertion hole formed in the lateral direction that intersects the vertical insertion hole; a connecting member to be inserted into the horizontal insertion hole; and an insertion hole that is formed in the fixing member and that inserts the connecting member. It is possible to provide a concrete rail balustrade and a road side wall that are suitable for use at the end of a road and can reduce the impact on the road surface and the impact of the vehicle at the time of collision.

According to a second aspect of the present invention, the fixing member has a fixing portion that is fixed to the foundation and an insertion portion that is inserted into the vertical insertion hole, and the fixing portion is fixed to the foundation by an anchor bolt. At the same time, an elastic member is provided between the head of the anchor bolt and the upper surface of the foundation, which is suitable for use at the end of the road, etc., and reduces the influence on the road surface at the time of collision and the impact of the vehicle. It is possible to provide a concrete wall balustrade and a road side wall that can be used.

According to a third aspect of the present invention, a joint portion is provided between the wall main bodies adjacent to each other in the lengthwise direction, and the plurality of wall main bodies are tension-integrated by the PC steel material in the lengthwise direction. It is possible to provide a concrete rail balustrade and a road side wall that are suitable for use at the end portion of the road and can reduce the influence on the road surface at the time of collision and the impact of the vehicle.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view in a width direction showing a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the essential parts in the width direction showing the first embodiment of the present invention.

FIG. 3 is a longitudinal cross-sectional view showing the first embodiment of the present invention.

FIG. 4 is a front view of a wall balustrade and a road side wall showing a first embodiment of the present invention.

FIG. 5 is a partially cutaway plan view of an overlapping portion according to the first embodiment of the present invention.

FIG. 6 is a sectional view taken along line YY of FIG. 5 showing the first embodiment of the present invention.

FIG. 7 is a vertical cross-sectional view of a fixing recess according to the first embodiment of the present invention.

FIG. 8 is a plan view of a joint portion showing the first embodiment of the present invention.

FIG. 9 is a vertical cross-sectional view of a joint portion according to the first embodiment of the present invention.

FIG. 10 is a vertical cross-sectional view in the width direction in the use state of the height adjusting bolt according to the first embodiment of the present invention.

FIG. 11 is a front view of the height adjusting bolt according to the first embodiment of the present invention in use.

FIG. 12 is a vertical cross-sectional view of a main part in the width direction showing a second embodiment of the present invention.

FIG. 13 is a longitudinal sectional view showing a conventional example.

[Explanation of symbols]

 2 Wall body 2A Lower surface 6 Vertical insertion hole 9 Horizontal insertion hole 10 Hose (filler injection hole) 11 Concrete slab (foundation) 12 Fixing member 13 Insertion portion 13A Insertion hole 14 Fixing portion 15 Anchor bolt 16 Disc spring (elastic member) 17 Fixing nut (head) 18 Hard rubber sheet (elastic member) 20 Connecting member 21 PC steel 30 Joint

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Akama 4-2 Kojimachi, Chiyoda-ku, Tokyo Within Kowa Concrete Co., Ltd. (72) Inventor Tadashi Yanagisawa 5-33-11, Shinbashi, Minato-ku, Tokyo Nippon Hume Co., Ltd. In the company

Claims (3)

[Claims] 1. A fixing member which is erected on a foundation, a vertical insertion hole which is formed on a lower surface of a wall body and which inserts an upper portion of the fixing member, and a vertical insertion hole which is formed on a side surface of the wall body. A concrete wall balustrade characterized in that it has a transverse horizontal insertion hole that intersects, a connecting member that is inserted into the horizontal insertion hole, and an insertion hole that is formed in the fixing member and that inserts the connecting member. Roadside wall. 2. The fixing member includes a fixing portion that is fixed to the foundation and an insertion portion that is inserted into the vertical insertion hole. The fixing portion is fixed to the foundation by an anchor bolt, and the anchor bolt is used. The concrete rail balustrade and road side wall according to claim 1, wherein an elastic member is provided between the head of the base and the upper surface of the foundation. 3. A joint portion is provided between the wall main bodies adjacent to each other in the lengthwise direction, and a plurality of the wall main bodies are tension-integrated by a PC steel material in the lengthwise direction.
Concrete concrete balustrades and roadside walls.