JP2006328677A - Wire rope joining structure of sound insulating wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound insulating wall which is provided with an extra-length section joint capable of sliding along a wire rope passing through a support, so as to prevent the risk that the support may fall below a road or be turned and suspended in air, when a vehicle collides with the sound insulating wall constructed on the roadside of an elevated road etc. <P>SOLUTION: Both ends of each of the wire ropes 2 and 3 are fixed to a road structure or the support, and the extra-length section joint 12 is provided between both the fixed ends. The joint 12 makes an extra-length section formed by making the two wire ropes 2a and 2b lap each other by a fixed length, and the two wire ropes are slidably joined together by means of a joint element 7. An anti-coming-off stopper 8, which is stopped by colliding with the joint element 7, is fixed to the ends of the two wire ropes. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention belongs to the technical field of sound barriers installed along roads, railways, and the like, and more specifically, a pillar fall prevention wire rope installed in the longitudinal direction of the road through the lower part of each pillar of the sound barrier. , And the extra length required for the pole rotation prevention wire rope installed in the longitudinal direction of the road through the upper part of each pole, and at least one extra seam in the middle part of the wire rope with both ends fixed The present invention relates to a wire rope joining structure that secures a wire rope by wrapping two wire ropes in a necessary length linearly so as to be slidable.

Conventionally, on sound barriers installed along roads and railways, pillars and sound insulation panels have been struck by accidents such as vehicle collisions, resulting in secondary disasters in the surrounding and lower living and traffic environments. Accident prevention measures are taken so that they do not occur.
For example, as illustrated in FIGS. 9A to 9C, the column drop prevention wire 2 is penetrated through the lower part of each column 1 constituting the soundproof wall and installed long in the longitudinal direction of the road. Moreover, the support | pillar rotation prevention wire 3 is penetrated also to the upper part of each support | pillar 1, and is installed long in the longitudinal direction of the road. By the way, the column fall prevention wire 2 passed through the column lower part is for preventing the column 1 from falling under the elevated road due to a vehicle collision accident or the like. This is intended to prevent an accident in which the upper part of the column 1 supported by the column drop prevention wire 2 falls to the road side of the elevated road due to a vehicle collision accident or the like. The soundproof wall shown in FIG. 9 is constructed by fixing the soundproof panel 4 between the columns 1 and 1 which are fixed to the upper end of the wall height column 6 of the road 5 and spaced apart in the longitudinal direction of the road. .

Next, in the case of the sound insulation wall described in the following Patent Document 1, a wire passage groove is provided in the lower bottom portion of the sound insulation plate, and the sound insulation plate fall prevention and support column rotation in which the web of the support column is penetrated in the wire passage groove. The structure which provided the prevention wire is disclosed.
In addition, the soundproof wall described in Patent Document 2 below passes a support column fall prevention wire through a rib projecting on the lower road side of the support column, and passes a support rotation prevention wire through a rib projecting on the upper road side of the support column. The configuration is disclosed.
The sound insulation wall described in Patent Document 3 is provided with an annular holder on the upper end surface portion of each strut, and wires are passed through three or more struts, and both ends of the wire are fixed to the struts. A configuration in which a surplus length greater than a necessary length is provided by loosening is disclosed.

JP 2002-227141 A JP 2002-339319 A Japanese Patent Publication No.56-11801

In the case of the conventional soundproof wall shown in FIG. 9, the post fall prevention wire rope 2 and the post rotation prevention wire rope 3 need an extra length that exhibits a buffering effect against a vehicle collision accident or the like. A surplus length is prepared by using the lower panel of the groove-shaped cross section provided between the lower end of the soundproof wall and the upper surface of the concrete wall rail 6 and the wide cavity provided in the headboard 19 at the upper end of the soundproof wall. . The wire ropes 2 and 3 are made of heavy-corrosion-resistant steel stranded wire with a nylon tube coated on the outer circumference. The outer diameter is about 12mm to 31mm, and it is difficult to bend or loosen itself. It is because it cannot be done.
However, in recent years, due to problems in the maintenance and management of sound barriers and the need for cost reduction, it has become necessary to improve the caps and lower panels, and as a result, the width of the space for storing wire ropes has become narrower and the extra length has been prepared. Is becoming more difficult.

As disclosed in the above-mentioned Patent Document 1, a wire passage groove is provided in the lower bottom surface portion of the sound insulation plate, and a sound insulation plate fall prevention / post rotation prevention wire in which the web of the column is penetrated in the wire passage groove. In the configuration, it is difficult for the reason described above to relax the wire rope and secure the length to absorb the impact at the time of the collision of the vehicle.
As in the soundproof wall described in Patent Document 2, a pillar drop prevention wire is passed through the rib projecting on the lower road side of the pillar, and a pillar rotation prevention wire is passed through the rib projecting on the upper road side of the pillar. In such a configuration, it seems that it is possible to secure the extra length as a so-called slack or bend of the wire, but the loose wire is exposed on the road side, so the fit is bad, the design aesthetics and the appearance are bad There is also a possibility that a loose wire may cause a secondary disaster.
Like the sound insulation wall described in Patent Document 3, an annular holder is provided at the upper end of each column, and wires are passed through three or more columns, both ends of the wire are fixed to the columns, and the columns fall off the wire. Even if the extra length is longer than the length required for the wire, the wire will be exposed ugly, so it will not fit, the design will not look good, and the loose wire may cause a secondary disaster. Conceivable.

The object of the present invention is the configuration of the extra length part seam where the extra length required for the prop fall prevention wire rope and the extra pole rotation prevention wire rope are connected so as to be slidable by wrapping the required length in a substantially straight state. It is intended to provide a wire rope joining structure for a soundproof wall that can secure a necessary and sufficient length with an easy work even if the wire rope storage space is small.
The next object of the present invention is to secure a sufficiently high impact resistance safety of the column drop prevention wire rope and the column rotation prevention wire rope by securing a necessary and sufficient extra length.

  A further object of the present invention is that even if a soundproof wall is damaged due to a vehicle collision accident, etc., and needs to be replaced or repaired, the corresponding margin of the column fall prevention wire rope and the column rotation prevention wire rope is applicable. By disassembling and separating the long joints, we can replace and repair them within the minimum necessary range, and provide a wire rope joint structure for a soundproof wall that can save labor and save labor and shorten the work period. can do.

As means for solving the above-mentioned problem, the wire rope joint structure of the soundproof wall according to the invention described in claim 1 is:
A plurality of struts 1 built in the longitudinal direction of the road 5 at intervals and a soundproof panel 4 attached between the struts 1, 1, and a strut fall prevention through each of the struts 1. In the soundproof wall provided with the wire rope 2,
Both ends of the pillar fall prevention wire rope 2 are fixed to a road structure or a pillar, and at least one extra length seam 12 is provided between the two fixed ends. The two wire ropes 2a and 2b are wrapped by a certain length to form an extra length portion, and the two wire ropes are slidably connected by a connector 7 and are connected to the ends of the two wires. It is characterized by having a structure in which a stopper stopper 8 is fixed to collide with the connector 7 and stop.

The wire rope joint structure of the soundproof wall according to the invention described in claim 2
A plurality of struts 1... Which are built at intervals in the longitudinal direction of the road 5 and soundproof panels 4 attached between the struts 1 and 1. The upper part of each of the struts 1. In the soundproof wall provided with the support rotation prevention wire rope 3 penetrated in
Both ends of the support rotation prevention wire rope 3 are fixed to a road structure or a support, and at least one extra length seam 12 is provided between the two fixed ends. Two wire ropes are wrapped to a certain length to form an extra length portion, and the two wire ropes are slidably connected by a connector 7, and the connector is connected to the ends of the two wire ropes. 7 is a structure in which a stopper stopper 8 that stops when it hits 7 is fixed.

The wire rope joint structure of the soundproof wall according to the invention described in claim 3 is:
A plurality of struts 1... Which are built at intervals in the longitudinal direction of the road 5 and soundproof panels 4 attached between the struts 1, 1. The lower part of each of the struts 1. In the soundproof wall respectively provided with the pillar fall prevention wire rope 2 pierced through and the pillar rotation prevention wire rope 3 penetrating the upper part of each pillar 1 in the longitudinal direction of the road,
Both ends of the column drop prevention wire rope 2 and column rotation prevention wire rope 3 are fixed to the road structure or the column 1, and at least one extra length seam 12 is provided between the two fixed ends. The surplus length portion seam 12 wraps two wire ropes to form a surplus length portion, and the two wire ropes are slidably connected by a connector 7. The wire rope end has a structure in which a stopper 8 is fixedly attached to the end of the wire rope.

The invention described in claim 4 is the wire rope joint structure of the soundproof wall according to claim 1 or 3,
A U-shaped wire rope storage section 25 having a transverse cross section opened downward is provided on the bottom surface of the soundproof panel located at the bottom of the soundproof panels 4 attached between the columns 1 and 1. The strut fall prevention wire rope 2 is arranged in a straight line in the wire rope storage section 25 through the web of the strut 1, and the extra length seam 12 of the strut fall prevention wire rope 2 is composed of two wires. The end of the rope is wrapped to a certain length to form an extra length, and the two wire ropes are slidably connected by a joint 7, and the joint 7 is connected to the ends of the two wire ropes. It is characterized in that the stopper 8 is fixed to be fixed when it collides with.

The invention described in claim 5 is the wire rope joint structure of the soundproof wall according to claim 2 or 3,
A U-shaped wire rope storage portion 20 whose cross section is opened downward is provided on the lower bottom surface portion of the soundproof panel positioned at the top of the soundproof panels 4 attached between the columns 1 and 1. The strut rotation prevention wire rope 3 is disposed in a straight line in the wire rope storage section 20 through the web of the strut 1, and the extra length seam 12 of the strut rotation prevention wire 3 has two wire ropes. The two wire ropes are slidably connected to each other by the joint 7 and the ends of the two wire ropes are connected to the joint 7. It is characterized in that the stopper 8 is fixed so as to be stopped by collision.

The invention described in claim 6 is the wire rope joint structure of the soundproof wall according to any one of claims 1 to 5,
The joint 7 of the extra length seam 12 includes an inner member 7a having a substantially C-shaped cross section having two wire ropes 2a and 2b wrapped in a straight state, and an outer periphery of the inner member 7a on the opening side. The cross section of the inner member 7b is a combination with the outer member 7b having a substantially C-shape, and the inner member 7a and the outer member 7b are the same in a state of holding two wire ropes wrapped in a straight line. The two wire ropes are slidably connected to each other by a plurality of bolts 9 arranged through the middle of the two wire ropes and a nut 10 screwed into the bolts.

The wire rope joining structure of the soundproof wall according to the present invention wraps the extra lengths of the support fall prevention wire rope 2 and the support rotation prevention wire rope 3 with two wire ropes 2a and 2b that are almost straight, respectively. The extra length part seam 12 that is slidably connected is secured, so as long as the two wire ropes are wrapped and connected, the extra length of the necessary and sufficient length can be easily achieved even with the narrow wire rope storage parts 20 and 25. In other words, there is no need to bend or loosen it, and it can be secured by straight connection work, and it looks good from the outside. Therefore, the wire ropes 2 and 3 having the extra length necessary for shock absorption can be installed even on the soundproof wall without the lower panel and the soundproof wall without the headboard.
In the present invention, the extra length part seam 12 can secure a surplus length that is necessary and sufficient for shock absorption, so that the impact resistance safety of the strut fall prevention wire rope 2 and the strut rotation prevention wire rope 3 is sufficient. Enhanced.

  Since the wire rope joining structure of the soundproof wall according to the present invention secures the surplus length of the support fall prevention wire rope 2 and the support rotation prevention wire rope 3 with the construction of the surplus length seam 12 of the above construction, Even if the soundproof wall is damaged due to a collision and the support 1 or the soundproof panel 4 needs to be replaced or repaired, the corresponding extra lengths of the support fall prevention wire rope 2 and support rotation prevention wire rope 3 are applicable. By disassembling and releasing the joint 12, replacement and repair work can be completed within the minimum necessary range.

  The lower part of each column 1 of the soundproof wall composed of a plurality of columns 1, which are built at intervals in the longitudinal direction of the road 5, and a soundproof panel 4 mounted between the columns 1, 1 is disposed in the longitudinal direction of the road. In the configuration provided with the support fall prevention wire rope 2 penetrating through and the support rotation prevention wire rope 3 penetrating the upper part of each support pole 1 in the longitudinal direction of the road, the support fall prevention wire rope 2 and the support rotation prevention The wire rope 3 is fixed at both ends to a road structure or a column, and at least one extra length seam 12 is provided between the two fixed ends. The surplus length portion seam 12 is formed by wrapping two wire ropes 2a and 2b for a certain length to form a surplus length portion, and the two wire ropes are slidably connected by a joint tool 7, and the two A stopper 8 is fixedly fixed to the end of the wire rope.

In the following, the present invention will be described based on embodiments shown in the drawings.
The soundproof walls shown in FIG. 1 and FIG. 2 are spaced substantially equal to the length (for example, about 2 m) of the soundproof panel 4 to be described later in the longitudinal direction of the upper surface of the concrete wall height column 6 provided on the road side of the road 5. It is comprised with the support | pillar 1 ... built in multiple numbers, and the sound-insulation panel 4 attached between the said support | pillars 1 and 1. As shown in FIG. And the lower part of said support | pillar 1 ..., specifically, the support | pillar fall prevention wire rope 2 arrange | positioned by penetrating the position of the lower bottom face part of the lower soundproof panel 4 in the longitudinal direction of the road substantially horizontally is provided. Yes. Moreover, the support | pillar rotation prevention wire rope 3 which has arrange | positioned the position of the upper part of each support | pillar 1 ..., specifically, the lower bottom face part of the upper stage sound-proof wall 4 in the longitudinal direction of the road substantially horizontally is provided.
However, the height of the column 1, the number of steps of the soundproof wall 4, the height position where the column rotation prevention wire rope 3 is disposed, and the like are not limited to the illustrated example. It is designed and constructed flexibly according to the height required as a sound barrier. The support rotation prevention wire rope 3 is preferably disposed at the position of the lower bottom surface of the uppermost soundproof panel 4. As a result, there is no need to cover up with a cap.

The said support | pillar fall prevention wire rope 2 and the support | pillar rotation prevention wire rope 3 are set as the structure which provided the extra length seam 12 between the both right and left fixed ends at least one place.
As shown in FIG. 4 to FIG. 6, the surplus length seam 12 includes two wire ropes 2a and 2b to be connected to each other as necessary lengths S1 and S2 (see FIG. 6B), the extra length portion is formed by linear wrapping. The two wire ropes 2a and 2b are slidably connected to each other by a joint tool 7, and a stopper stopper 8 is fixed to the end of the two wire ropes 2a and 2b. It is said. Since the extra length seam 12 of the support rotation preventing wire rope 3 is also configured in the same manner, its specific illustration and description are omitted.

As shown in the disassembled state in FIG. 4, the joint 7 of the extra length seam 12 has a substantially cross-sectional shape so that the two wire ropes 2 a and 2 b to be wrapped in a straight state are inserted and held from the opening. The inner member 7a formed in a C-shape and the outer periphery of the inner member 7a are closely held facing each other from the opening side (specifically, they are assembled by sliding in the longitudinal direction). It is comprised by the combination with the outer member 7b which formed the surface in the substantially C shape. Each of the inner member 7a and the outer member 7b is made by bending a steel plate.
The inner member 7a and the outer member 7b have two wire ropes 2a and 2b wrapped in a straight line, and are arranged to penetrate through the intermediate portions of the two wire ropes 2a and 2b. In the case of the illustrated example, bolt holes 11 and 11 through which two bolts 9 and 9 are passed in the longitudinal direction are provided in such a manner that their centers coincide with each other. The locking nuts 10 are screwed and fastened to the respective bolts 9 passed through the respective bolt holes 11, and the two wire ropes 2a and 2b are subjected to an impact force generated by an accident such as a vehicle colliding with the soundproof wall. It is connected so that it slides only the extra length and exhibits a buffering effect.
Incidentally, FIGS. 6A and 6B show a normal connection state before impact. FIG. 6C shows a state where an impact has occurred and the two wire ropes 2a, 2b have slid and the stoppers 8 at each end have collided with the connector 7 and stopped.

1 and FIG. 2, the support rod fall prevention wire rope 2 and the support rotation prevention wire rope 3 provided with the extra length seam 12 are passed through the web 1a of the support column 1 in the horizontal direction as shown in FIG. Furthermore, the structure arrange | positioned in the linear state in the wire rope storage parts 20 and 25 provided in the lower bottom face part of the upper and lower soundproof panels 4 and 4 is shown.
As illustrated in FIG. 7A, the wire rope storage part 20 of the upper soundproof panel 4 has a U-shaped wire rope storage part frame 21 whose cross section opens downward on the bottom surface of the soundproof panel 4. In order not to obstruct the presence of the sound absorbing louver 22 on the front side, it is formed by attaching a bag having a bag portion 21a recessed inward. Incidentally, the inner width m of the wire rope storage section frame 21 is about 80 mm, and the effective height n is about 55 mm. On the other hand, since the joint 7 in which two wire ropes 2a and 2b having an outer diameter of 18 mm are joined has a lateral width L shown in FIG. 5A of about 65 mm and a height H (the total length of the bolt 9) is about 50 mm. 7 is easily stored in the wire rope storage unit 20.
The support rope rotation prevention wire rope 3 is almost in the wire rope storage part 20 which is closed by the wire rope storage part frame 21 of the upper soundproof panel 4 being stacked on the upper end of the lower soundproof panel 4 as shown in FIG. It is stored straight and not exposed to the outside. Therefore, even if it is not necessary to attach a headboard to the top of the soundproof wall, a sufficient extra length can be secured and the support rotation preventing wire rope 3 can be stored and installed. In addition, when the headboard is attached, the width of the headboard can be made narrower than before, so that the appearance can be made clean and the weight can be reduced and the manufacturing cost can be reduced.

  As illustrated in FIG. 7B, the wire rope storage portion 25 of the lower soundproof panel 4 has a U-shaped cross-section that opens downward on the bottom surface of the soundproof panel 4 and substantially the width of the soundproof panel 4. A wire rope storage frame 26 having the same width is attached. The wire rope storage portion 25 also has an inner width m of about 95 mm and an effective height n of about 100 mm, and the connector 7 having the above size can be stored easily. Incidentally, in the case of FIG. 2, the strut fall prevention wire rope 2 is easily stored in a straight state in the wire rope storage section 25 that is stacked and closed on the upper surface of the concrete wall rail 6, It looks good because it is not exposed.

8A and 8B is constructed by fixing the lower part of the column 1 with brackets 30 and 30 attached to the outer surface of the concrete wall rail 6 with anchor bolts or the like. And between the said support | pillars 1 and 1, the soundproof panel 4 is built by mounting in multiple steps above the upper surface of the concrete wall height column 6, and is constructed | assembled.
The support wire fall prevention wire rope 2 is disposed at a lower position exposed on the outer surface of the concrete wall rail 6 so as to penetrate each column 1 in the longitudinal direction of the road, and its fixed end is connected to the outer surface of the concrete wall rail 6. It is set as the structure fixed to the anchor metal fitting 31 firmly fixed with the anchor bolt etc. Furthermore, at least one surplus portion seam 12 using the connector 7 is provided in the post dropping prevention wire rope 2, and a necessary and sufficient surplus length is ensured in a straight state.

  Although the present invention has been described based on the illustrated embodiment, the present invention is not limited to the embodiment. Without departing from the scope and spirit of the present invention, the present invention can be implemented in various modes within the scope of design changes, modifications, and applications made by those skilled in the art as needed.

It is the elevation which showed the soundproof wall which is Example 1 of this invention partially fractured | ruptured. FIG. 2 is a sectional view taken along line II-II in FIG. 1 and enlarged. It is a top view explaining arrangement | positioning of the support | pillar fall prevention wire rope in the soundproof wall of FIG. It is the perspective view which decomposed | disassembled and showed the connector used for a surplus length part seam. A, B, and C are the side view, front direction sectional drawing, and top view which show the structure of a surplus length part seam. A and B are a cross-sectional view and a plan view showing a normal state of the extra length seam, and C is a plan view showing a state where the wire rope is slid by an impact force. A and B are cross-sectional views showing the structure of the wire rope housing portion of the upper and lower soundproof panels. A and B are an elevation view and a side view showing a soundproof wall according to a second embodiment of the present invention. A, B, and C are an elevation view, a side view, and a plan view showing a conventional noise barrier.

Explanation of symbols

1 Prop 2 Prop Fall Prevention Wire Rope 2a, 2b Wire Rope 3 Prop Rotation Prevention Wire Rope 4 Soundproof Panel 5 Road
6 Concrete wall rail 7 Joint 7a Inner member 7b Outer member 8 Retaining stopper 9 Bolt 10 Nut 11 Bolt hole 12 Extra length seam 19 Kasagi 20, 25 Wire rope storage part 21, 26 Wire rope storage part frame 21a Bag part 22 Sound absorption louver 30 Bracket 31 Anchor bracket

Claims (6)

In a soundproof wall comprising a plurality of pillars built at intervals in the longitudinal direction of a road, and a soundproof panel attached between the pillars, and comprising a pillar fall prevention wire rope penetrating each of the pillars ,
Both ends of the support fall prevention wire rope are fixed to a road structure or support, and at least one extra length seam is provided between the two fixed ends, and the extra length joint is formed of two wires. The rope is wrapped with a certain length to form an extra length, and the two wire ropes are slidably connected by a joint, and the end of the two wires collides with the joint and stops. A wire rope joint structure for a soundproof wall, characterized in that the stopper is fixed. In a soundproof wall comprising a plurality of pillars built at intervals in the longitudinal direction of the road and a soundproof panel attached between the pillars, and comprising a pillar rotation prevention wire rope that penetrates each of the pillars. ,
Both ends of the support rotation prevention wire rope are fixed to a road structure or a support, and at least one extra length seam is provided between the two fixed ends. The wire rope is wrapped to a certain length to form an extra length, and the two wire ropes are slidably connected by a joint, and the two wire ropes collide with the joint at the end of the two wire ropes. A wire rope joint structure for a soundproof wall, characterized in that a stopper for securing the stopper is fixed. A plurality of struts built at intervals in the longitudinal direction of the road, and soundproof panels attached between the struts, a strut fall prevention wire rope penetrating the lower part of each strut, and each strut In the soundproof wall equipped with the strut rotation prevention wire rope penetrating the upper part,
The both ends of the column drop prevention wire rope and the column rotation prevention wire rope are fixed to the road structure or the column, and at least one extra length seam is provided between the two fixed ends. The long seam wraps two wire ropes for a certain length to form an extra length part, and the two wire ropes are slidably connected with a joint, and are connected to the ends of the two wire ropes. A wire rope joint structure for a soundproof wall, characterized in that a stopper for securing the stopper that collides with the joint and stops is fixed.   A U-shaped wire rope storage section with a cross-section opening downwards is provided on the bottom surface of the soundproof panel located at the bottom of the soundproof panels attached between the pillars. Is arranged in a straight line in the wire rope storage section through the web of struts, and the extra length seam of the strut fall prevention wire rope wraps the ends of the two wire ropes to a certain length. The two wire ropes are slidably connected to each other by a joining tool, and a retaining stopper is fixed to the end of the two wire ropes so as to collide with the joining tool and stop. The wire rope joint structure for a soundproof wall according to claim 1 or 3, wherein   A U-shaped wire rope storage section with a transverse cross-section opening downward is provided on the bottom surface of the soundproof panel located at the top of the soundproof panel attached between the struts. Is arranged in a straight line in the wire rope storage portion through the web of the support column, and the extra length seam of the support rotation prevention wire is obtained by wrapping the end portions of the two wire ropes to a certain length. In addition to forming an extra length, the two wire ropes are slidably connected to each other with a joint, and a stopper for securing the stopper that collides with the joint and stops is fixed to the end of the two wire ropes. The wire rope joint structure for a soundproof wall according to claim 2 or 3, wherein the wire rope joint structure is provided.   The joint part of the extra length seam has an approximately C-shaped inner member having two wire ropes wrapped in a straight line, and an approximately inner member having an outer periphery of the inner member from the opening side. It consists of a combination with a C-shaped outer member, and the inner member and the outer member penetrate the middle of the two wire ropes while holding the two wire ropes wrapped in a straight line. The wire of the soundproof wall according to any one of claims 1 to 5, wherein the two wire ropes are slidably connected to each other by a plurality of bolts arranged and nuts screwed into the bolts. Rope joint structure.

Images