KR100659732B1 - Slant type anchor and Set up method of expansion joint using the anchor - Google Patents

Abstract

The present invention relates to a slant anchor and an expansion joint installation method using the same. In the present invention, in the anchor having a plurality of reinforcement grooves having a gentle inclination angle on one side, the anchor is formed with an insertion hole penetrated therein. And, the left or right side is provided with a body formed with a connection area wider than the other side, the upper and lower parts of the body and the upper and lower portions of the insertion hole is characterized in that the plurality of the reinforcement groove is formed In addition, in the present invention, the present invention connects a plurality of the slant anchors to the expansion joint device, and then reinforces the reinforcing bars using the reinforcement grooves of the slant anchors, and then embeds them in concrete to form a bridge or bridge deck. In the expansion joint installation method for installing the expansion joint between the upper plate and the upper plate, the slant anchor is left when connected Provides an expansion joint installation method characterized in that the installation angle to the right about 30~45 °.

Description

Slant type anchor and Set up method of expansion joint using the anchor}             

1 is a perspective view of the anchor of the present invention.

Figures 2a and 2b is a view showing the contact area according to the shape of the reinforcement groove when the reinforcement to the anchor.

3a to 3h schematically show the reinforcement state of the rebar of the anchor of the present invention.

Figure 4 is a view showing one construction state using the present invention anchor.

5 is a view showing another construction state using the present invention anchor.

Figure 6 is a view showing another construction state using the present invention anchor.

7 is a view showing a state of use of the conventional anchor.

<Signature sign for main part of drawing>

10: Slant Anchor

   11: body

      111: insertion hole 112: connection portion

   12: Barrel Home

20: rebar

30: expansion joint

The present invention relates to a slanted anchor and an expansion joint installation method using the same. More specifically, the reinforcement and height of the free reinforcing bar can be adjusted, and the contact area with the reinforcing bar increases the adhesion to concrete. In case of installing the expansion joint using the slant type anchor and the slant type anchor, it is possible to minimize the occurrence of cracking due to the wheel load by increasing the adhesion force with the concrete. The present invention relates to a method for installing expansion joints to increase adhesion to concrete and to share load by increasing anchoring area with reinforcing bars by adjusting the angle of anchors.

In general, the bridge or the top of the bridge is shrunk or expanded in accordance with the temperature change, so the top of the bridge to be constructed over a certain length is installed at a predetermined distance from the neighboring top in consideration of the contraction and expansion of the top. Between the tops of these bridges, the tops of the bridges can be interconnected and flexibly coped with the contraction and expansion of the tops, helping to ensure safe operation of the vehicle. do.

Various types of expansion joints are applied to the expansion joints, and an example of the expansion joints used in the expansion joints is a finger type expansion joint 330 shown in FIG. 7. As shown in the drawing, the finger-type expansion joint 330 generally includes a pair of finger plates 331 having a plurality of corrugated fingers and grooves facing each other so as to occlude each other, and the finger plate 331. At the bottom, a pair of support plates 332 supporting the finger plate 331 are coupled, and a drain hole 333 is formed between the support plates 332 to prevent rainwater or foreign matter from entering.

The expansion joint device 330 of this structure is used to connect a plurality of anchors 310 to the side as shown in the figure, after connecting the anchor 310 by using the anchor 310 reinforcement 320 When the concrete is laid and then it is buried in concrete, the expansion joint is installed between the top plate and the top plate of the bridge. At this time, the anchor 310 used in the expansion joint portion serves to fix and support the expansion joint device 330, including a sawtooth anchor 310 shown in the drawings having a variety of structures and shapes Is being used.

 However, the conventional conventional anchor, including the serrated anchor 310 shown in the drawing is not only used vertically connected to the expansion joint 330, but also the reinforcement of the reinforcement 320 is possible to only one side up and down There is a problem that it is difficult to exhibit a sufficient stress, the crack caused by the lubrication load due to the decrease in the adhesion between the concrete and the reinforcing steel 320 after the concrete is placed.

Accordingly, the present invention is to solve the above-mentioned problems of the prior art, to allow free adjustment of the reinforcement and height of the reinforcing bar, and to increase the contact area with the reinforcing bar to increase the adhesive force with the concrete. The object is to provide a lanyard anchor.

In addition, the present invention can increase the contact area with the reinforcement when applying the slant anchor in the expansion joint construction process to increase the adhesion to concrete to minimize the occurrence of cracks, in particular the angle of the anchor attached to the expansion joint It is another object to provide an expansion joint installation method that can increase the attachment area with reinforcing bars through adjustment and induce load sharing.

In order to achieve the above object, the present invention provides an anchor having a plurality of reinforcement grooves having a gentle inclination angle on one side, wherein the anchor is formed with an insertion hole through which the anchor penetrates, and has a larger area than the other side on the left or right side. It is provided with a body formed with a connecting portion, and provides a slit-type anchor, characterized in that a plurality of the reinforcement grooves are formed in the upper and lower portions and the upper and lower portions of the insertion hole, respectively.

In addition, the present invention connects a plurality of the slant anchor to the expansion joint device, and then reinforce the reinforcement using the reinforcement groove of the slant anchor anchor and then embedded in concrete to stretch between the top and top of the bridge or piers In the expansion joint installation method for installing the joint, the slant anchor provides an expansion joint installation method, characterized in that installed at an angle of about 30 to 45 ° to the left or right when connected.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, but the accompanying drawings are provided only to assist in understanding the present invention, but the present invention is not limited thereto.

1 is a perspective view of the anchor of the present invention, Figures 2a and 2b is a view showing the contact area according to the shape of the reinforcement groove when the anchor of the reinforcement, Figures 3a to 3h schematically illustrates the reinforcement state of the reinforcing bar of the anchor of the present invention Figure is shown.

As shown in FIGS. 1 to 3, the anchor 10 according to the present invention has an insertion hole 111 through which an interior is formed, and a body having a connection portion 112 having a larger area than the other side on the left or right side. (11) and the upper and lower parts of the body 11 and the upper and lower portions of the insertion hole 111 are formed with a plurality of reinforcement grooves 12 each having a gentle inclination angle only to one side.

Here, the insertion hole 111 formed in the interior of the body 11 is formed to enable the reinforcement of the reinforcement 20 also inwards, and helps reinforcement of the reinforcement 20 at various intervals and heights.

The connecting portion 112 formed on the left or right side of the body 11 is formed to be used in the connecting process with the substrate as needed in the construction process, and has a relatively wider area than the other side. The connecting portion 112 may be connected to the substrate by welding, for example, or may be connected by combining the substrate and the bolt nut after drilling the bolt hole.

According to the present invention, the upper and lower portions of the body 11 and the upper and lower portions of the insertion hole 111 are formed with a plurality of reinforcement grooves 12 each having a gentle inclination angle only to one side. The reinforcement groove 12 is a part where the reinforcing bar 20 is placed, and then the reinforcing bar 20 can be easily placed by fixing it with a wire or the like.

Here, the reinforcement groove 12 is formed to have a gentle inclination angle only on one side, which is to facilitate the reinforcement and to increase the attachment area with the reinforcing bar (20). That is, as in the present invention, when the reinforcement groove 12 has a gentle inclination angle with only one side, when the rebar 20 is placed, the rebar 20 can be fixed at the inside at a constant position at all times. .

In this case, as shown in FIG. 2, when the reinforcement grooves 12 have gentle inclination angles to both sides (see FIG. 2B), when the reinforcement grooves 12 have only gentle inclination angles to one side (see FIG. 2A). In comparison, it can be seen that the contact area between the reinforcing bar 20 and the reinforcement groove 12 is small. Therefore, in order to increase the contact area, it is preferable to have a gentle inclination angle on only one side of the reinforcement groove 12 as in the present invention. In this case, when both the left and right sides of the reinforcement groove 12 has a steep inclination angle, the rebar is precisely fitted into the reinforcement groove so that workability is reduced.

As described above, in the process of reinforcing the reinforcement, if the attachment area between the reinforcement groove 12 and the reinforcing bar is increased, the adhesion force with the concrete is increased after the concrete is placed, thereby increasing the strength and minimizing the occurrence of cracking.

The reinforcement groove 12 is formed in the upper and lower portions of the upper and lower ends of the body 11 and the insertion hole 111 in the body 11, respectively, due to the reinforcement of the reinforcing bar 20 at various intervals and heights It becomes possible. Therefore, it is possible to appropriately select the reinforcement of the reinforcing bar 20 in consideration of the installation location and environment, and in particular, when using the installation of new joints of bridges or bridges, rebars in various structures and shapes in consideration of traffic volume or traffic load ( 20) can do the back muscles.

As an example of the reinforcement of the reinforcing bar as shown in Figure 3a to 3h can be reinforcement to have a variety of intervals and height of the reinforcing bar 20 according to the installation method. 3A and 3B show the shape of the back muscles that can be performed when the root depth is shallow, and FIGS. 3C and 3D show the shape of the back muscles that can be carried out when the root depth is thick, and FIGS. 3E and 3F Fig. 3G and Fig. 3H show the shape of the back muscles that can be performed when the rooting depth is shallow and the installation cross section is large, and Figs.

As described above, the slanted anchor 10 according to the present invention can be installed at various intervals and heights of rebar 20 according to the installation environment, and can be used for various construction methods at various installation sites. In particular, it is possible to minimize the occurrence of cracks by increasing the adhesion area with the concrete by increasing the contact area with the reinforcement 20 when reinforcement.

According to the present invention provides an installation method that can effectively use the above-described slit-type anchor 10 when installing the expansion joint of the bridge or piers. More specifically, in the present invention, a plurality of the slant anchors 10 are connected to the expansion joint device, and then the rebar 20 is utilized by using the reinforcement grooves 12 of the slant anchor 10. Provides expansion joint installation method characterized in that the expansion joint is installed between the upper plate and the top of the bridge or bridge by laying in concrete

Referring to the installation method according to the invention in more detail with reference to the accompanying drawings as follows.

Figure 4 is a view showing a construction state using the anchor of the present invention.

As shown in FIG. 4, one side of the slant anchor 10 is connected to the support plate of the expansion joint device 30. Connection of the expansion joint 30 and the slant anchor 10 can be carried out by fixing the connecting portion 112 of the slant anchor 10 to the support plate of the expansion joint 30 by welding or the like. When the connection of the slant anchor 10 is completed, the reinforcing bar 20 is placed in the reinforcement groove 12 of the slant anchor 10, and then the concrete is laid on the side and the installation of the expansion joint is completed. Will be.

As described above, when the expansion joint construction is performed using the slant anchor 10 according to the present invention, the interval and height of the rebar 20 may be adjusted in consideration of the traffic weight, and the rebar 20 and concrete may be adjusted. The adhesive force of is increased to increase the strength and minimize the occurrence of cracks.

5 is a view showing another construction state using the present invention anchor.

As shown in FIG. 5, the slant anchor 10 is installed at an angle of about 30 to 45 ° to the left or the right side in the process of connecting the slant anchor 10 to the side of the expansion joint device 30.

As such, when the slant anchor 10 is installed at an angle, the attachment area with the reinforcing bar 20 is increased, thereby increasing the adhesion force and sharing the load. In addition, after the concrete is placed, the bonding force with the anchor 10 is increased to exhibit sufficient stress, and it is possible to prevent the occurrence of cracking due to the wheel load. Here, the angle can be changed in various ways depending on the installation site, by adjusting the angle can be made more freely to adjust the spacing and height of the reinforcement (20).

6 is a view showing another construction state using the anchor of the present invention.

As shown in FIG. 6, the slant anchor 10 is vertically connected to the lower part of the expansion joint device 30, and the slant anchor 10 extends in the longitudinal direction to the wing side of the expansion joint device 30. Connected. When the slant anchors 10 are arranged in this way, not only the load sharing can be induced, but also the strength can be increased.

As described above, the present invention has a useful effect of providing a slant anchor that enables free reinforcement and height adjustment of the reinforcing bars, as well as widening the contact area with the reinforcing bars to increase adhesion to concrete. .

In addition, the present invention can minimize the occurrence of cracks by increasing the adhesion area with the concrete by increasing the contact area with the reinforcement when applying the slant anchor in the expansion joint construction process, in particular of the anchor attached to the expansion joint It is possible to increase the attachment area with the reinforcing bar through the angle adjustment, and has a useful effect of providing the installation method of the expansion joint to induce the sharing of the load.

The present invention has been described above with reference to the preferred embodiments shown in the drawings, but this is only exemplary, and thus the present invention is various modifications and equivalent other embodiments that can be obviously derived by those skilled in the art. It should be interpreted by the claims intended to cover examples.

Claims (4)

In the anchor formed with a plurality of reinforcement grooves having a gentle inclination angle to one side, The anchor is formed with an insertion hole through which the inside is formed, and has a body having a wider connection portion than the other side to the left or right side, and the upper and lower portions of the body and the upper and lower portions of the insertion hole, respectively, Slant anchor, characterized in that the plurality is formed. delete Connecting a plurality of slant anchor of claim 1 to the expansion joint device, and then reinforce the reinforcement using the reinforcement groove of the slant anchor anchor and then embedded in concrete to stretch between the top and top of the bridge or piers In the expansion joint installation method for installing the The slant anchor is installed expansion joint method characterized in that installed at an angle of 30 to 45 degrees to the left or right side when connected. 4. The method of claim 3, wherein the slant anchor is vertically connected to the lower portion of the expansion joint device and connected to the side surface in a longitudinal direction.

Images