KR100465181B1 - Wind load absorbed soundproofing walls - Google Patents

Abstract

The present invention relates to a soundproof wall installed on a roadside to absorb wind loads. According to the present invention, the outer frame (2) sandwiched between the strut (H1) and the strut (H2), the soundproof plate (1) fitted in the outer frame (2) so as to be able to flow, and the soundproof plate (1) have a design wind load or more Elastic means provided between the outer frame 2 and the sound insulation plate 1 so as to be able to elastically rotate in one direction about the rotation axis according to the wind pressure, and the soundproof plate 1 and the outer frame within a design wind load. Fixing means is provided which connects (2) and falls off according to the wind pressure more than a design wind load. When the wind pressure more than the design wind load is applied, the sound absorbing plate 1 rotates while the fixing means is dropped, thereby reducing the area receiving the wind. Load reduction and construction cost of the entire soundproof wall are greatly reduced.

Description

Wind Load Absorption Type Soundproof Walls {WIND LOAD ABSORBED SOUNDPROOFING WALLS}

The present invention relates to a soundproof wall installed on a roadside, and more particularly to a soundproof wall capable of absorbing wind loads.

Existing soundproof walls are built with H-posts at regular intervals on the roadside or on the edges of bridges, and are fitted with soundproof panels between them. Most soundproofing panels are made of opaque materials, which are designed for high sound insulation efficiency, but some materials use transparent materials. Utility model registration 20-0228357 (ex. 2000-0009744 publication) is known as a rotary transparent soundproof board. This design is the same structure as a conventional chassis window, with a door ring for locking or opening the window by hand above and below the window frame.

However, the above known design has only the purpose to facilitate the washing while allowing the passers-by of the residential area to easily view the surrounding landscape, and has no relationship with the wind load.

The wind load applied in the design of existing soundproof walls is 150kg / m2 for earthworks and 300kg / m2 for bridges. When converting this load into wind speed, it belongs to the wind stronger than the instantaneous wind speed of oversized typhoon more than 55m / sec, which is generally less than 50% in Korea once every 60 years. Therefore, considering that the lifespan of soundproof walls is 20 years or less, the application of such wind loads is considerably uneconomical because of the excessive design of cantilevers of bridges and slabs that are directly affected by the wind loads. It has been determined that the present invention has been sought as an alternative.

If the wind load of the soundproof wall can be reduced by more than half, the reduction of the soundproof wall struts saves more than 20% of the construction cost of the soundproof wall, as well as the structural stability and enormous economic savings due to the reduction of the cross section in the cantilever of the pier and the slab when installed in the bridge. It is expected to be effective.

An object of the present invention is to reduce the load of the entire soundproof wall and to significantly reduce the construction cost by reducing the projected area in the wind load direction when the soundproof plate is rotated when the expected maximum wind load is received.

1 is a front view of a soundproof wall of an embodiment of the present invention,

2 is an operational state when the wind blows more than the design wind load,

3 is a block diagram of a main unit of the sound barrier according to an embodiment of the present invention;

Figure 4 is a cross-sectional view of the coupling state of the rotary bearing installed in the soundproof plate in Figure 3,

Figure 5 is an exploded perspective view of the main portion of the rotary bearing in Figure 4,

6 is a cross-sectional view of the configuration before and after the combination of the camber is rotated in the rotary bearing installed in the outer frame in Figure 5,

7 is a plan sectional configuration of an embodiment as a soundproof plate fixing means,

8 is a configuration diagram of another embodiment as the sound insulation plate fixing means.

<Explanation of symbols for the main parts of the drawings>

1: soundproof plate 2: outer frame

3: inner frame 4: rotating bearing

5 inner housing 6 outer housing

7: fastener 8: camber

9,20: compression spring 10: slot

11 cylinder 12 fixed shaft

13 handle 14 square groove

15: projection 16: camber

17: protrusion 18: fixed pin

19: Ball 21: Home

a, b: rotation shaft H1, H2: post (H-Post)

W: unit soundproof wall

In order to achieve the above object, the present invention provides an outer frame fitted between a support post and a support, a sound insulation board that is inserted into the outer frame so as to be able to flow, and the sound insulation board being burnt in one direction around the rotating shaft according to the wind pressure of the design wind load or more. An elastic means is installed between the outer frame and the sound insulation plate so as to rotate sexually, and the fixing means is connected to the sound insulation plate and the outer frame within a design wind load and then dropped according to the wind pressure of the design wind load or more.

The sound insulation board has a rotation axis in the center of the top and bottom or left and right. This axis of rotation is rotatably fitted to the outer frame. The elastic means installed on the rotating shaft has a compression spring. In the case of holding the compression spring, the end of the rotating shaft should be configured to receive the elastic force of the compression spring while rotating a predetermined section. In this case, the axis of rotation should have a camber to form a projection in the form of an arc to push the compression spring, which should be installed in the housing so that only a certain angle in one direction can be rotated. The housing should be fixed to the outer frame. The rigidity K of the compression spring installed therein and the rotational displacement δ of the camber determine the design wind load. This principle is in the relationship of F (wind load) = P (horizontal load) = K · δ.

The rotation of the soundproof plate is accommodated by the displacement of the compression spring, and after the occurrence of displacement, the rigidity of the spring not only returns to the original position, but also by adjusting the camber size of the rotating shaft to prevent the reverse of the original recovery. It can be configured to be separated from the camber and the rotating shaft. This can be done by configuring the rotating shaft to be pulled out or inserted artificially from the camber. The rotating shaft can be combined with the camber in each shape so that the rotating shaft does not idle. Fixing means may take the form of a pin that can be broken in the design wind load or more, in addition to taking the form of a ball that can be elastically coupled in the form of unevenness can be bounced out of the design wind load or more. Above design wind load means the maximum wind load is preferably in the range of 150kg / ㎡ for earthwork, 300kg / ㎡ for bridges.

The elastic means mentioned above may be composed of a torsion spring formed at both ends of the 'b' shape. In this case, one end is fixed to the outer frame to form a rotation axis and the other end is fixed to the side of the soundproof plate. In addition, the present invention includes a configuration to be able to variably adjust the cross-sectional force of the fixing means as well as the rotation angle of the elastic means. It can be sufficiently achieved by adjusting the elastic force through a screw adjusting means such as a bolt.

According to the present invention having such a configuration, when the wind pressure of the design wind load or more is applied, the fixing means is dropped, and the soundproof plate is elastically rotated to one side about the rotation axis by the elastic means in the outer frame according to the wind pressure of the design wind load or more. As a result, the projected area in the wind load (wind pressure) action direction is reduced, thereby reducing the area subjected to the wind.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

1 is a state in which the sound insulation board 1 is closed, and FIG. 2 is a state in which the sound insulation plate 1 is open. The soundproof wall consists of a plurality of unit soundproof walls W, and a plurality of unit soundproof walls W are vertically sandwiched between the strut H1 and the column H2. In FIG. 1 and FIG. 2, parts indicated by a and b are parts forming the rotation axis of the sound insulation board 1. As shown in FIG. 3, the unit soundproof wall W is fitted with the soundproof plate 1 in a flowable manner in the outer frame 2. As for the soundproof board 1, the inner frame 3 is assembled to the edge. 1 and 2, the rotating bearings 4 are provided on the rotating shafts corresponding to the a and b portions. Rotating bearing 4 is installed in pairs on the inner frame 3 and the outer frame 2 as shown in FIG.

Rotating bearing 4 is composed of the inner housing 5 and the outer housing 6, as shown in Figures 4 to 6 can be combined or separated from each other. The inner housing 5 is fixed to the fastener 7 which can be operated by hand, and is installed in the inner frame 3. The outer housing 6 is installed so that the arc shaped camber 8 can cause rotational displacement in a predetermined section according to the elastic force of the compression spring 9. This outer housing 6 is provided in the outer frame 2.

More specifically, the fastener 7 fixed in the inner housing 5 has a rectangular fixed shaft 12 in a rectangular cylinder 11 having a '10' shaped slot 10 as shown in FIG. The handle 13, which is fitted and fixed to the side of the fixed shaft 12, protrudes outward through the slot 10. A compression spring 11a is provided between the inner end of the fixed shaft 12 and the inner wall of the cylinder 11 so as to push the fixed shaft 12 elastically. Thus, when the handle 13 is moved horizontally from side to side along the 'ㅛ' shaped slot 10, the fixed shaft 12 elastically couples to the square groove 14 provided in the camber 8 while elastically flowing. Here, the grooves formed in the front and rear of the slot 10 (the upside-down portion) have a predetermined fine self-elastic force up and down when the handle 13 passes through the slot 10 section between these grooves. When it is coupled to one of the grooves, the elastic force is released (the elastic force of the compression spring 11a is maintained) so that the fixed shaft 12 can be fixed so as not to flow left and right. ), The groove on the left side is that the handle 13 is caught when the inner frame 3 is to be coupled or separated from the outer frame 2, and the groove on the right side is the fixed shaft 12 by the compression spring 11a. The handle 13 according to the excessive forward force of A fixed to prevent the interference with the rectangular groove 14 of the inner wall of the camber (8) is not generated. This is because the camber 8 may not rotate when the fixed shaft 12 pushes the square groove 14 excessively. In other words, the handle 13 has an end thereof at the fixed shaft 12. ) Is horizontally connected in the slot 10, the horizontal section of the left and right is the upper and lower elastic force generating section of the handle 13 and the front and rear two grooves (the part dug up) to the left and right flow of the fixed shaft 12 Here, the handle 13 is formed to have a predetermined elastic force so as not to break when a predetermined external force is generated up and down. In addition, the fixed shaft 12 of the fastener 7 is the camber 8 It is coupled to the square groove 14 of the to allow the camber 8 to rotate or to be separated from the camber 8 is solved by the left and right movement of the handle (13). That is, when the fixed shaft 12 is operated to the left side of FIG. 5 and separated from the camber 8, the soundproof plate 1 may be separated from the outer frame 2.

The camber 8 of the outer housing 6 has a square groove 14 formed at the center thereof to which the fixed shaft 12 of the fastener 7 can be coupled or detached, and has an arcuate shape on its outer surface in the circumferential direction. The protrusion 15 protrudes. The camber 8 is installed to rotate in the outer housing 6 shown on the left side of FIG. 6. Inside the outer housing 6 is a camber seat 16 which can be rotated by the camber 8 is coupled as shown in Figure 6 and the projection seat 17 that can rotate the predetermined section is seated the projection 15 is Formed together. The camber seat 16 is circular and allows the camber 8 to be coupled and rotated. A compression spring 9 is installed on the left side of the protrusion 17. When the compression spring 9 is compressed by the protrusion 15 when the camber 8 rotates, the protrusion 15 is compressed by the compression spring 9. ) Will rotate to a part of the installed area. The elastic rotation of the camber 8 is made by the fixed shaft 12, the fixed shaft 12 is fixed to the inner housing 5 and the inner housing 5 is the inner frame 3 of the soundproof plate 1 Installed in Thus, when wind pressure more than the designed wind load acts on the sound insulation board 1, the projection 15 forming the camber 8 rotates while compressing the compression spring 9. The protrusion 17 is formed of the camber 8 The protrusion 15 pivots from the center of the square groove 14 to the maximum compression distance of the compression spring 9. That is, when the wind pressure is generated in the soundproof plate 1, the soundproof plate 1 rotates. While rotating the inner frame 3 integrally therewith, while the fixed shaft 12 of the fastener 7 coupled to the inner frame 3 is rotated at the same time, the fixed shaft 12 is coupled to the camber ( 8) is rotated in the same direction. Then, the projection 15 of the camber 8 is rotated together with the guide of the projection 17 to compress the compression spring 9 in the outer housing 6, whereby the soundproof plate 1 of the compression spring 9 The wind force can be eliminated by the elastic force. The design wind load refers to the expected maximum wind load, which has been described in the range of 150 kg / m 2 for earthworks and 300 kg / m 2 for bridges.

The stiffness K of the compression spring 9 and the rotational displacement δ of the camber 8 determine the design wind load. This principle is related to the relationship of F (wind load) = P (horizontal load) = K · δ. I've done it. In addition, when the sound insulation board 1 is rotated, the projected area in the direction of the wind load action is reduced, and the area of the wind is reduced. When the wind speed P1 applied to the projection area A is calculated in the state before the sound insulation board 1 rotates, P1 = F1 × A (kg / m 2). Where F1 is the wind load. On the other hand, when the wind load (F2) is applied to calculate the applied wind load (P2) in the projection area (B) when the soundproof plate is rotated to the maximum as follows.

P2 = F2 × B = F1 × (A × SinθK) (kg / ㎡)

= F1 × A × (SinθK) (kg / ㎡)

if, K = 30 ° then,

P2 = F1 × A × 0.5 = 0.5 × P1 (kg / ㎡)

Between the inner frame 3 and the outer frame 2 of the lower side of the sound insulation board 1 connects the fixing means of one embodiment, that is, the fixing pin 18 as shown in FIG. The fixing pin 18 is a plane in the installation state, the left head is fixed to the inner frame (3) and the right body having a wedge-shaped elastic piece is fitted to the outer frame (2). At this time, the fixing pin 18 is fitted through the outer frame (2). In addition, the fixing pin 18 serves to fix the soundproof plate 1 so as not to rotate in the outer frame 2 as usual. Fixing pin 18 design the cross-sectional force so that it can be broken above the design wind load. Therefore, the sound insulation board 1 is fixed to the wind load expected in the usual, and when the sudden wind load increases, the neck breaks and falls off. Accordingly, the fixed shaft 12 and the camber 8 rotate while compressing the compression spring 9 in the outer housing 6 to open the sound insulation plate 1 at an angle as shown in FIG. 2.

Figure 8 shows the fixing means of another embodiment, it is the case by the elastic ball. The ball 19 and the compression spring 20 are installed on the lower side of the outer frame 2, and the hemispherical groove 21 to which the ball 19 can be caught is the lower side of the inner frame 3 of the soundproof plate 1. Is formed. The pressure that the ball 19 can escape from the groove 21 needs to be designed to be more than the design wind load. Therefore, the soundproof plate 1 is fixed to the wind load expected in the usual time, and when the wind load increases rapidly, the ball 19 overcomes the elastic force of the compression spring 20 and comes out of the groove 21. Accordingly, as in the above embodiment, the fixed shaft 12 and the camber 8 rotate while compressing the compression spring 9 in the outer housing 6 to open the soundproof plate 1 at an angle as shown in FIG. 2. will be.

Therefore, the present invention can reduce the cross-section of the post (H-Post) to at least a half size in the case of the earthquake-proof sound wall, and if there is a free space of the road may increase the angle of rotation to minimize the influence of the wind. Therefore, the price of landlords is reduced considerably, and the weight of the hot-dip galvanized plate is also significantly reduced, and the section wall of the foundation retaining wall can be reduced by reducing the size and spacing of the anchor, which can reduce the construction cost of the entire soundproof wall by 20-50%. In particular, as the height of the soundproof walls increases, the cost savings are greater and structurally more stable.

In addition, in the case of the soundproof wall for bridges, it can be increased from 2m to 4m, which is the distance between the existing landscaping, and additional cost reduction can be achieved, and even if the height of the soundproof wall increases, no special design of the base plate is required. In this case, the unit costs are significantly reduced. In particular, the cross section of the piers can be prevented from becoming excessively large due to the influence of the horizontal force due to the wind load, and the excessive increase of the cross section of the slab cantilever part can be prevented, thereby significantly reducing the construction cost.

In addition, from the design and structural aspects, when the wind load is always greater than the horizontal force during earthquake design of the bridge, an excessive design is being made to increase the regular stiffness of the earthquake bearings. Can be less than the horizontal force. Therefore, it is possible to solve the difficulties in seismic design, which is an opportunity to increase the applicability, and the wind load reduction effect in seismic design is also excellent.

In addition, as the height of the soundproof wall increases, it is essential to increase the cross section in consideration of the increase in the activity, conduction, and bearing capacity of the foundation concrete. However, when the present invention is applied, the cross section of the foundation retaining wall and the structure is almost unchanged. And the special design of the base plate is virtually eliminated, which simplifies the design.

Previously, the expected maximum wind load was determined vaguely and applied to the soundproof wall and the structure connected thereto. However, when the present invention is applied to a part or the whole, when the rotation angle of the soundproof plate is adjusted and the cross-sectional force of the fixing pin is adjusted, the usability of the soundproof wall and the usability of the wind load during typhoon are It is possible to design to control the individual. For example, the sound insulation wall in the structure of high importance can increase the cross-sectional force or elastic force of the fixing pin to increase the stability at all times, and in the case of the structure of the low importance structure, the sound insulation wall can be installed at the minimum cost by artificially Design is possible.

Claims (2)

An outer frame sandwiched between the support post and the support, a sound insulation board slidably inserted into the outer frame, and the outer frame so that the sound insulation board can be elastically rotated to one side about the rotation axis in accordance with a wind pressure equal to or greater than a design wind load. The wind load absorbing soundproof wall, characterized in that the elastic means is provided between the soundproof plate and the fixing means which is connected to the soundproof plate and the outer frame within a design wind load and dropping according to the wind pressure of the design wind load or more. The method of claim 1, wherein the elastic means The outer housing is installed in the outer frame and the arc-shaped camber is installed so as to cause rotational displacement in a certain section in accordance with the elastic force of the compression spring, and the soundproof plate is installed on the soundproof plate by manipulating the forward and backward of the fixed shaft by hand Wind load absorbing soundproof wall, characterized in that consisting of the inner housing is fixed inside the fastener that can be removable and arc-shaped camber.