JP2015196948A - construction method of soundproof wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method of a soundproof wall for easily constructing the soundproof wall, and capable of uniformly pressing-fixing a soundproof panel over a long period by constant force.SOLUTION: A construction method of a soundproof wall comprises a column 7 composed of H-shaped steel, a panel fastener 1 and a soundproof panel 8, and comprises the steps of: fixing the panel fastener 1 having a bottom plate part 11, a locking claw 2 and a spiral plate spring part 3 locked on a locking claw in a folded-up state by being elastically deformed, to the inside of a flange 72 of the column 7, by a bolt 61 and a nut 63 so that the locking claw 2 turns in the standing-up direction of the flange 72; erecting the column 7 at a predetermined interval; dropping a soundproof panel 8 in the flange 72 of the adjacent column 7; and fixing the soundproof panel 8 to the inside of the flange 72 by elastically deforming the plate spring part 3 to release locking with the locking claw 2, expanding the plate spring part 3, and pressing the soundproof panel 8 with the plate spring part 3.

Description

  The present invention relates to a method for constructing a soundproof wall.

  The sound barriers installed along the roads and railroad tracks for automobiles are between a plurality of pillars made of H-shaped steel that are erected at predetermined intervals with the flanges facing each other, and the flanges of two adjacent pillars. The soundproof panel is fitted and a panel fastener for fixing the soundproof panel to the support is provided.

  As a construction method of such a soundproof wall, in Patent Document 1, after inserting a soundproof panel between upright H-shaped steel columns, the soundproof panel is inserted into the gap between the back surface of the soundproof panel and the flange. Method of fixing a soundproof panel to a column by inserting a fixing spring, which is a panel fastener having a U-shaped cross section having an insertion piece and a pressing piece arranged on the outer surface of the flange, and fixing the panel to a column with bolts and nuts Is described.

  The fixing spring used in this construction method is to fix the soundproof panel to the column by screwing the nut and screwing the pressing piece of the fixing spring into place, and pressing the insert piece against the soundproof panel against rebound resilience. can do.

  Further, in Patent Document 2, it is attached between adjacent soundproof panels inside the flange of the support column, and after the soundproof panel is inserted between the support columns, the fastening of the fastener is released so that the elastic restoring force is applied. A construction method for a soundproof wall is described in which the soundproof panel is pressed against a flange by being elastically deformed and fixed.

JP 2000-355912 A JP 2001-26911 A

  In the construction method of the soundproof wall described in Patent Document 1, the fixing spring is inserted and attached to the gap between the flange and the soundproof panel after the soundproof panel is inserted between the columns, so that the mounting work is difficult. The work efficiency was poor.

  Further, since this fixing spring fixes the panel by making point or line contact between the insertion piece and the soundproof panel, the panel cannot be fixed with a uniform pressing force.

  In the construction method of the soundproof wall described in Patent Document 2, it is necessary to insert the panel fastener between the soundproof panels, so that the installation work at the site is troublesome.

  Further, since there is play in fixing the panel fastener, there is a problem that the pressing force against the soundproof panel is not constant.

  Moreover, when releasing the locking of the fasteners of the panel fastener, it is necessary to work from above the soundproof wall, and there is a problem that the work is difficult.

  Therefore, the present invention has been devised in view of the above-described problems, and can easily construct a soundproof wall, and can uniformly press and fix the soundproof panel with a constant force over a long period of time. The purpose is to provide a construction method.

  A soundproof wall construction method according to a first aspect of the present invention comprises a column made of H-shaped steel, a panel fastener attached to the column, and a soundproof panel fixed to the column by the panel fastener. A method for constructing a wall, which is provided inside a flange of the support column, at a bottom plate portion, a locking claw provided at one end portion of the bottom plate portion, and an end portion of the bottom plate portion facing the locking claw. And a spiral plate spring portion locked to the locking claw in a state of being elastically deformed and folded, and a panel fastener having the locking claw extending in the direction of the soundproof wall. Fixing with bolts and nuts so that the flange is raised from the web of the web, a step of standing the pillars with the flanges facing each other at a predetermined interval, and the flange of the pillars adjacent to each other. Dropped in A step of elastically deforming the plate spring portion of the panel fastener to release the locking by the locking claw, deploying the plate spring portion, and pressing the soundproof panel by the plate spring portion. And fixing the soundproof panel inside the flange of the support column.

  In the construction method of the soundproof wall according to the second invention, in the first invention, the expansion of the leaf spring part is to lift the leaf spring part from the bottom plate part, and It is characterized by being performed by elastically deforming and releasing the locking.

  In the construction method of the soundproof wall according to the third invention, in the first or second invention, the panel fastener is fixed to the inside of the flange located on the side where noise is generated at the installation place of the soundproof wall. It is characterized by.

  According to the present invention having the above-described configuration, the panel fastener can be attached to the support column before installation of the soundproof panel, and the panel fastener can be easily deployed with a tool or the like from the flange release side after the soundproof panel is installed. Therefore, the construction of the soundproof wall can be easily performed.

  Further, since the panel fastener and the soundproof panel are in surface contact, the soundproof panel can be pressed and fixed with a uniform force.

  Furthermore, since the soundproof panel is pressed and fixed only by the elastic deformation force of the panel fastener, even if the fastening force of the bolt and nut is loosened, the pressing force does not change, and the soundproof panel is pressed and fixed with a constant force over a long period of time. can do.

It is a perspective view which shows the panel fastener used in embodiment of this invention. It is a side view which shows a panel fastener. It is a top view which shows a panel fastener. It is a front view which shows a panel fastener. It is a top view which shows the state by which the soundproof panel was dropped in the flange of the support | pillar which attached the panel fastener. It is a top view which shows the state which developed the panel fastener in the state by which the soundproof panel was dropped in the flange of the support | pillar. It is a perspective view which shows the state which developed the panel fastener. It is a perspective view which shows the modification of a panel fastener. It is a side view which shows the modification of a panel fastener. It is a top view which shows the modification of a panel fastener. It is a perspective view which shows the state which expand | deployed the panel fastener which concerns on a modification.

  Hereinafter, the construction method of the soundproof wall which concerns on embodiment of this invention is demonstrated. The soundproof wall is provided along a place where noise is generated (hereinafter referred to as a noise generation source) such as a road on which a car runs or a railway.

  In the sound barrier construction method according to the present embodiment, first, the panel fastener 1 is attached to the column 7 made of H-shaped steel.

  FIG. 1 is a perspective view showing a panel fastener 1 used in the embodiment of the present invention. 2 is a side view showing the panel fastener 1, FIG. 3 is a plan view showing the panel fastener 1, and FIG. 4 is a front view showing the panel fastener 1. FIG.

  FIG. 5 is a plan view showing a state in which the soundproof panel 8 is dropped into the flange 72 of the column 7 to which the panel fastener 1 is attached. FIG. 6 is an exploded view of the panel fastener 1 in the state of FIG. It is a top view which shows the state which carried out.

  1 to 6, the X direction is the extension direction of the soundproof wall, the direction in which the flange 72 rises from the web 71 of the support column 7, the Y direction is the direction opposite to the direction where the noise source is located, and the Z direction is the upright direction. The extension direction of the support column 7 is shown.

  The panel fastener 1 is a member made of an elastically deformable metal, and fixes the soundproof panel 8 to the flange 72 of the column 7 by the elastic deformation force.

  The panel fastener 1 is provided at a long plate-like bottom plate portion 11, a locking claw 2 provided at one end portion of the bottom plate portion 11, and an end portion facing the locking claw 2 of the bottom plate portion 11, and elastically deformed. And a spiral leaf spring portion 3 that is locked to the locking claw 2 in a folded state.

  The bottom plate portion 11 is provided with a first extending portion 11c that is continuous with the locking claw 2 on one side in the short direction. A second extending portion 11b continuous to the leaf spring portion 3 is provided at a position in the short direction of the bottom plate portion 11 and facing the first extending portion 11c. Moreover, the 3rd extension part 11a is provided in the longitudinal direction vicinity of the baseplate part 11, and the hole 18 for bolt fastening is provided in this 3rd extension part 11a.

  The locking claw 2 is formed to have a lower piece 16 that rises in the X direction from the first extending portion 11 c and an upper piece 17 that protrudes from the lower side 16 toward the leaf spring portion 3. The locking claw 2 maintains the folded state of the leaf spring 3 by engaging with the leaf spring portion 3 in a state where the upper piece 17 is folded.

  The leaf spring portion 3 is formed by folding a long plate-like portion continuous with the second extending portion 11b into a spiral shape. The leaf spring portion 3 is continuous with the second piece 13 and the first piece 12 rising at an acute angle continuously with the second extending portion 11b, the second piece 13 with an obtuse angle with the first piece 12, and the second piece 13. And the third piece 14 formed so as to be folded between the second piece 13 and the bottom plate portion 11, and the third piece 14 is continuous with and at an acute angle. And a fourth piece 15 formed so as to be folded between the two pieces 13.

  Further, as shown in FIG. 1 or FIG. 3, the width of the leaf spring portion 3 in the Z direction is wider than the width of the locking claw 2. Therefore, when viewed from the X direction, both end portions in the Z direction of the leaf spring portion 3 are exposed from the locking claws 2.

  In a state before the soundproof panel 3 is fixed, the leaf spring portion 3 is in a state of being locked by the locking claws 2 in a state of being elastically deformed and folded as shown in FIGS. . The panel fastener 1 is attached to the support | pillar 7 which consists of H-shaped steel in the state by which the leaf | plate spring part 3 was folded in this way. The attachment position of the panel fastener 1 is near the end of the flange 72 in the X direction.

  As shown in FIG. 5, the panel fastener 1 is attached so that the locking claw 2 is directed in the X direction, that is, the extending direction of the soundproof wall and the direction in which the flange 72 rises from the web 71 of the column 7. This is performed using a bolt 61 and a nut 63.

  A through hole (not shown) is formed at a position where the panel fastener 11 of the flange 72 is attached at a position facing the hole 18. The panel fastener 1 is fixed by inserting the bolt 61 into the through hole of the hole 18 and the flange 72 from the inside of the flange 72 and screwing the washer 62 and the nut 63 from the outside of the flange 72.

  Next, the column 7 to which the panel fastener 1 is attached is erected with the flanges 72 facing each other at a predetermined interval. At this time, the column 7 is erected so that the flange 72 to which the panel fastener 1 is attached faces the noise generation source side. By adopting such an arrangement, it is possible to visually confirm the looseness of the bolt 61 and the nut 63 from the side of the road or railway line where workers can easily enter.

  Next, the soundproof panel 8 is dropped into the flange 72 of the adjacent column 7 from above the flange 72. In addition, as the soundproof panel 8, for example, various types such as those having an opening such as a louver shape or a fine hole formed on the side facing the noise generating source and having a sound absorbing material inside are used. it can.

  Next, the latching claw 2 of the panel fastener 1 is elastically deformed to expand the leaf spring portion 3, and the soundproof panel 8 is fixed inside the flange 72 of the column 7.

  FIG. 6 is a plan view showing a state in which the panel fastener is unfolded in a state where the soundproof panel 8 is dropped into the flange 72 of the column 7. FIG. 7 is a perspective view showing a state in which the panel fastener 1 is developed.

  As shown in FIGS. 1 and 3, the leaf spring portion 3 is developed from the direction of arrow A at both ends in the Z direction of the leaf spring portion 3 and in the vicinity of the boundary between the second piece 13 and the third piece 14. It is performed by pressing using a rod-shaped tool or the like. This boundary portion is at a position that can be easily visually recognized from the vicinity of the end portion of the flange 72 in the X direction.

  Here, the direction of the arrow A is the X direction of the flange 72, that is, the extending direction of the soundproof wall, and is substantially horizontal, and the panel fastener 1 is attached in the vicinity of the end portion of the flange 72 in the X direction. That is, the vicinity of the boundary between the second piece 13 and the third piece 14 is located near the end of the flange 72 in the substantially horizontal direction.

  When the vicinity of the boundary between the second piece 13 and the third piece 14 is pressed, the leaf spring portion 3 is elastically deformed and pushed in the −X direction and rises in the Y direction, and the upper piece 17 and the plate of the locking claw 2 The contact of the spring part 3 with the second piece 13 is released. And the leaf | plate spring part 3 which was shrunk | deformed by a restoring force will be in the state expand | deployed as shown in FIG.6 and FIG.7.

  As described above, since the panel fastener 1 is attached in the vicinity of the end of the flange 72 in the X direction, even after the soundproof panel 8 is dropped, the operator can easily look into the flange 72 from the horizontal direction. The panel fastener 1 can be visually recognized. Moreover, the tool can be easily inserted, and the panel fastener 1 can be easily deployed.

  When the panel fastener 1 is deployed, the second piece 13 of the leaf spring portion 3 comes into surface contact with the soundproof panel 8 and is pressed as shown in FIG. Thereby, the soundproof panel 8 can be pressed and fixed with a uniform force.

  According to the construction method of the soundproof wall according to the above-described embodiment, the panel fastener 1 can be attached to the support column 7 before the soundproof panel 8 is attached, and the panel fastener 1 is easily deployed after the soundproof panel 8 is attached. The soundproof panel 8 can be fixed. As a result, the construction of the soundproof wall can be performed much more easily and quickly than before.

  Moreover, although the panel fastener 1 is being fixed with the volt | bolt 61 and the nut 63, even if the fastening force by the volt | bolt 61 and the nut 63 is lost after expansion | deployment of the leaf | plate spring part 3, it is flanged by its own elastic force. The position in 72 is fixed and does not change.

  Therefore, even if the bolt 61 and the nut 63 are loosened or dropped due to breakage or the like, the pressing force against the soundproof panel 8 does not change, and the soundproof panel 8 can be pressed and fixed with a constant force for a long time. .

  Further, the panel fastener 1 is attached to the flange 72 with bolts 61 and nuts 63, and the operation of placing the panel fastener 1 is unnecessary, so that the generation of noise associated with the placement work during construction is reduced. can do.

  Further, since the panel fastener 1 is compactly folded before use, and the attachment site is also near the end of the flange 72, this replacement work can be easily performed even if the panel fastener 1 is damaged. It can be carried out.

  In addition, the shape of the panel fastener 1 used in the construction method of the soundproof wall according to the present invention is not limited to the shape according to the above-described embodiment, and adopts other shapes within a range in which the same effect can be obtained. Can do.

  FIG. 8 is a perspective view showing a modification of the panel fastener, FIG. 9 is a side view showing a modification of the panel fastener, and FIG. 10 is a plan view showing a modification of the panel fastener.

  The panel fastener 20 which concerns on a modification is a member which consists of a metal which can be elastically deformed similarly to the panel fastener 1, and fixes to the flange 72 of the support | pillar 7 of the soundproof panel 8 with the elastic deformation force.

  The panel fastener 20 is provided at a long plate-like bottom plate portion 21, a locking claw 2 ′ provided at one end portion of the bottom plate portion 21, and an end portion facing the locking claw 2 ′ of the bottom plate portion 21, And a spiral leaf spring portion 3 ′ which is locked to the locking claw 2 ′ in a state of being elastically deformed and folded.

  The difference between the panel fastener 20 and the panel fastener 1 described above is only the shape of the locking claw 2 ′, and all other configurations are the same as those of the panel fastener 1.

  A first extending portion 21 c is formed on the bottom plate portion 21 of the panel fastener 20 in the lateral direction.

  The locking claws 2 ′ are formed by bending from the both ends in the Z direction of the first extending portion 21 c with a predetermined width in the X direction, and bending in the −X direction continuously to the lower piece 26. The upper piece 27 is formed.

  As shown in FIGS. 8 and 10, the width of the leaf spring portion 3 ′ in the Z direction is wider than the width of the locking claw 2 ′. In addition, a predetermined interval is provided between the two lower pieces 26 and the upper piece 27 of the locking claw 2 ′. Therefore, when viewed from the X direction, both end portions and the central portion of the leaf spring portion 3 in the Z direction are exposed from the locking claws 2 ′.

  And the panel fastener 20 is attached to the flange 72 of the support | pillar 7 using the bolt 61 and the nut 63 like the panel fastener 1 mentioned above (refer FIG. 5).

  The column 7 to which the panel fastener 20 is attached is erected at a predetermined interval with the flanges facing each other.

  After the column 7 is thus erected, the soundproof panel 8 is dropped into the flange 72 of the adjacent column 7.

  Then, after the soundproof panel 8 is dropped between the flanges 72, the panel fastener 20 is deployed, whereby the soundproof panel 8 is fixed and the construction of the soundproof wall is completed.

  As shown in FIGS. 8 and 10, the panel fastener 20 is unfolded from the direction of the arrow A in the Z-direction both ends or the center of the leaf spring portion 3 ′. This is performed by pressing the vicinity of the boundary using a bar-shaped tool or the like.

  When the vicinity of the boundary between the second piece 23 and the third piece 24 is pressed, the leaf spring portion 3 ′ is elastically deformed and pushed in the −X direction and rises in the Y direction, and the upper piece 27 of the locking claw 2 ′. And the contact of the leaf spring portion 3 ′ with the second piece 23 are released. Then, the contracted leaf spring portion 3 ′ is deformed by the restoring force and is in a developed state as shown in FIG. 11. FIG. 11 is a perspective view showing a state in which the panel fastener 20 according to the modification is developed.

  Here, the direction of the arrow A is the X direction of the flange 72, that is, the extending direction of the soundproof wall, and is substantially horizontal. Further, the panel fastener 20 is attached in the vicinity of the end portion of the flange 72 in the X direction.

  Therefore, even after the soundproof panel 8 is dropped, the operator can easily visually recognize the panel fastener 20 by looking into the inside of the flange 72 from the horizontal direction. Since the panel fastener 20 is visible and attached to a position near the end of the flange 72, it is easy to insert a tool, and the panel fastener 20 can be easily deployed.

  When the panel fastener 20 is unfolded, the second piece 23 of the leaf spring portion 3 ′ is brought into surface contact with the soundproof panel 8 and pressed in the same manner as the panel fastener 1 described above. Thereby, the soundproof panel 8 can be pressed and fixed with a uniform force.

  Even when such a panel fastener 20 is used, the panel fastener 20 can be attached to the column 7 before the soundproof panel 8 is attached, and the panel fastener 20 is easily deployed after the soundproof panel 8 is attached. The soundproof panel 8 can be fixed. As a result, the construction of the soundproof wall can be performed much more easily and quickly than before.

  Further, the panel fastener 20 is fixed by the bolt 61 and the nut 63. Even if the fastening force by the bolt 61 and the nut 63 is lost after the leaf spring portion 3 'is deployed, the panel fastener 20 is flanged by its own elastic force. The position in 72 is fixed and does not change.

  Therefore, even if the bolt 61 and the nut 63 are loosened or dropped due to breakage or the like, the pressing force against the soundproof panel 8 does not change, and the soundproof panel 8 can be pressed and fixed with a constant force for a long time. .

  Further, the panel fastener 20 is attached to the flange 72 with bolts 61 and nuts 63, and the placement work of the panel fastener 20 is unnecessary, so that the generation of noise associated with the placement work is reduced during construction. be able to.

  Further, since the panel fastener 20 is compactly folded before use, and the attachment site is also near the end of the flange 72, this replacement work can be easily performed even if the panel fastener 20 is damaged. It can be carried out.

DESCRIPTION OF SYMBOLS 1,20 Panel fastener 2, 2 'Locking claw 3, 3' Leaf spring part 11, 21 Bottom plate part 18, 28 Hole part 7 Support | pillar 8 Sound insulation panel 71 Web 72 Flange 61 Bolt 63 Nut

Claims (3)

A method of constructing a soundproof wall comprising a support made of H-shaped steel, a panel fastener attached to the support, and a soundproof panel fixed to the support by the panel fastener,
Inside the flange of the pillar, provided on the bottom plate portion, the locking claw provided at one end of the bottom plate portion, and the end portion of the bottom plate portion facing the locking claw, and folded by elastic deformation And a spiral plate spring portion locked to the locking claw in a state where the locking claw extends in the direction of the soundproof wall and the flange rises from the web of the column. Fixing with bolts and nuts so as to face,
A step of erecting the column with a predetermined interval while facing the flanges;
Dropping the soundproof panel into the flange of the adjacent strut;
The plate spring part of the panel fastener is elastically deformed to release the locking by the locking claw, the plate spring part is expanded, and the plate spring part presses the soundproof panel to Fixing inside the flange of the column;
A method for constructing a soundproof wall, comprising:   Deployment of the leaf spring portion is performed by lifting the leaf spring portion from the bottom plate portion, and elastically deforming the locking claw that locks the leaf spring portion to release the locking. The construction method of the soundproof wall of Claim 1 to do.   The method for constructing a soundproof wall according to claim 1 or 2, wherein the panel fastener is fixed to the inside of the flange located on a side where noise is generated at an installation location of the soundproof wall.

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