KR101852497B1 - Arranging steel bar of pc culvert structure for having the function of adjusting its height and width - Google Patents

Abstract

The present invention relates to a rebar arrangement structure and a rebar arrangement method and, more specifically, relates to the rebar arrangement structure for a prestressed concrete (PC) culvert capable of adjusting the width and the height. According to the present invention, since the width and the height are adjusted, various sizes of a steel structure for a PC culvert are able to be simply manufactured because the steel structure is manufactured after rebars are arranged by correct intervals due to a shape of the rebar arrangement structure for a PC culvert, and a rebar clip and scale installed therein, labor and time are able to be largely reduced; and since the width and a size of the rebar arrangement structure for a PC culvert are varied, a situation, in which a pair of inner and outer steel structures is prepared for each culvert or a steel structure of a culvert with a slightly different size, is able to easily correspond. According to the present invention, the structure comprises a main frame, a width adjustment member, an outer panel, and a height expansion member.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a PC culvert structure capable of adjusting width and height,

More particularly, the present invention relates to a method and apparatus for easily constructing a PC culvert rigid body of various sizes by controlling the width and height, Since steel bars can be manufactured after precise spacing of reinforcing bars through reinforcing clips and graduations, labor and time can be greatly reduced, and the width and size of reinforcing bars for PC culvert can be varied. It is possible to control the width and height of the PC culvert so that it can easily cope with situations such as the steel water should be prepared as a pair of outer and inner pieces for each piece, And an arranging method.

In general, the method of installing Precast Concrete Culvert, which is connected with a culvert box made of reinforced concrete, is mainly used for sewerage, waterway, communal, power, communication, and passage box construction. And to shorten the air to avoid traffic congestion at the construction site. Recently, it is mainly applied to install small bridges and other bridges.

Reinforced concrete structure is the most common structure structure of reinforced concrete and concrete. It is carried out by placing reinforced concrete and concrete after installing formwork. In general, It consists of separate tasks.

In other words, in-situ concrete reinforced concrete works are carried out in the order of placing the reinforcing material, installing the concrete, pouring the concrete and dismantling the form according to the design after bringing the material into the construction site. The construction of a box structure such as an underground joint that houses water, sewerage, telephone cables, gas pipes, etc., will also be done in the same manner as a reinforced concrete structure.

However, the construction of the culvert structure according to the above-mentioned reinforced concrete structure on site has a disadvantage in that the workability and precision are lowered due to the increased workload at the construction site. Particularly, in the case of a joint with an excavation work, the excavation volume is increased and the volume of the body is increased due to the excavation work.

This drawback is directly linked to the increase in air and construction cost, which leads to the problem of lowering the efficiency of construction as a whole.

On the contrary, the prefabricated PC culvert provides the effect of reducing the labor cost or the shortening of the air compared with the construction of the above-mentioned spot-pile structure, and in addition, since the effect of avoiding the traffic congestion at the buried site under construction is provided, This type of prefabricated PC culvert is manufactured and assembled by factory producing various types of prefabricated products and transporting them to the site.

Typically, a prefabricated PC culvert is manufactured by installing a mold conforming to the final specification of the product at a separate place (production factory), placing concrete on the mold, curing the preform and demolding the prefabricated PC culvert from the mold .

However, in the case of the reinforcing steel reinforcement work which corresponds to the initial work of the prefabricated PC culvert, it is one of the troublesome works to be carried out while arranging a large amount of reinforcing bars in various positions such as up and down, left and right, Most of them depend on manual work.

In the following Patent Document 1, a reinforcing net assembling apparatus for assembling a reinforcing net, while maintaining the shape and spacing of a plurality of horizontal reinforcing bars and vertical reinforcing bars, comprises: a base plate; And a plurality of spacers for supporting the horizontal reinforcing bars at the time of assembling the reinforcing net, wherein the horizontal supporting members support the horizontal reinforcing bars at the time of assembling the reinforcing net, Although the above description has been made on the fact that the horizontal support member is rotatable on the base plate so that the horizontal support member is separated from the horizontal reinforcement when the reinforcing net is separated, it is not limited to the PC culvert of various sizes, There is a problem that distance measurement must be performed separately.

Korean Registered Patent No. 10-1206060

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a reinforcing structure for a PC culvert and a method of arranging the culvert so that a width and a height can be adjusted, It has its purpose.

Further, since the steel pipe can be manufactured after the precise spacing of the reinforcing bars through the shape of the reinforcing bars and scales provided for the PC culvert, the width and height adjustment There is another purpose in providing a possible PC culvert construction and laying method.

In addition, according to the present invention, it is possible to vary the width and size of the PC building for culvert. Therefore, steel barrels should be prepared either as a pair for outside or inside for each culvert, or a steel barrel having a slightly different size The present invention also provides a method of arranging a PC culvert and an accommodation method capable of adjusting the width and height of the culvert.

According to an aspect of the present invention,

A main frame having a bottom open and formed in a hollow rectangular column shape; A width adjusting member installed on an outer surface of the main frame and adjusting a width of the main frame by adjusting the length thereof; The horizontal part, the oblique part and the vertical part extend in the height direction so as to form the same shape as the PC culvert, and the four parts are separated from each other in the same form, and the central part of the oblique part is fixed to the width adjusting member, An outer panel which is moved forward and backward by a member to expand its width; And a height expanding member for vertically moving the width adjusting member in a horizontal state to expand the height of the outer panel.

Here, the main frame includes a height adjusting member attached to the center of the top surface bottom to adjust the height of the main frame; And a pedestal installed vertically on the other end of the height adjusting member and installed on the ground.

Here, the width adjusting member may be any one selected from a hydraulic cylinder, an electric cylinder, and a pneumatic cylinder.

Here, the horizontal portion of the outer panel is formed in the form of a "navigator", and the vertical portion of the outer panel is formed in a "reverse navigator" shape so as to be symmetrical with the horizontal portion.

Here, the horizontal part and the vertical part are formed so that the extension panel is folded from the end to the inner side so as to fill a space between the adjacent horizontal part and the vertical part when the length and width are expanded, respectively.

Here, slot holes are horizontally formed in the horizontal direction, the slanting line, or the vertical portion, and a plurality of reinforcing bars for fixing the reinforcing bars are provided in the slot holes to arbitrarily adjust the spacing between the reinforcing bars.

Here, the height expanding member may include an LM guide installed vertically in the longitudinal direction at the center of the outer surface of the main frame; A guide block moved along the LM guide; A connecting frame horizontally coupled to the plurality of guide blocks to simultaneously move the plurality of guide blocks; A ball screw installed so as to move any one of the plurality of guide blocks and installed on both sides of the main frame such that both ends thereof are rotatable by bearings; And a rotating motor installed at a lower end or an upper end of the ball screw and rotating the ball screw.

According to another aspect of the present invention,

A method of arranging a PC culvert comprising the steps of adjusting a width and a height of a PC culvert comprising: a first step of vertically installing a main frame on a ground and adjusting a height of the main frame through a height adjusting member; A second step of adjusting the width and height of the outer panel through adjustment of the length of the width adjusting member and height adjustment of the height extending member when the height adjustment of the main frame is completed; A third step of adjusting an interval between the reinforcing bars to adjust an interval between the reinforcing bars; A fourth step of arranging a horizontal reinforcing bar in a horizontal direction through the reinforcing bar fixing clip and then joining vertical reinforcing bars in a vertical direction to the horizontal reinforcing bars; A fifth step of reducing the size of the main frame and separating the main frame from the first reinforcing bar; A sixth step of raising the main frame above the first reinforcing bar using the height adjusting member and then discharging the main frame from the first reinforcing bar via a lifting device; And a seventh step of fabricating a second reinforcing bar net by arranging and joining a reinforcing bar to the outside of the first reinforcing bar net.

According to the present invention, the width and height of the PC culvert can be adjusted by adjusting the width and height of the PC culvert.

Further, according to the present invention, since the steel frame can be manufactured after the precise spacing of the reinforcing bars through the shape of the reinforcing bars and scales provided for the shape of the reinforcing bars for PC culvert, it is possible to significantly reduce labor and time.

In addition, according to the present invention, it is possible to vary the width and size of the PC building for culvert. Therefore, steel barrels should be prepared either as a pair for outside or inside for each culvert, or a steel barrel having a slightly different size And so on.

2 is an exploded perspective view of FIG.
3 is a front sectional view of Fig.
4 is a rear perspective view showing the structure of an outer panel of a PC cage reinforcing structure capable of adjusting the width and height according to the present invention.
FIG. 5 is a perspective view illustrating the width of the outer panel of the PC cage, which can be adjusted in width and height, according to the present invention.
FIG. 6 is a perspective view showing an expanded state of the outer panel in the state of FIG. 5. FIG.
FIGS. 7 to 13 are process explanatory diagrams for explaining a method of arranging a PC culvert for width and height adjustment according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of a PC cage reinforcing structure capable of adjusting the width and height according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is an exploded perspective view of the PC rig according to the present invention; FIG. 3 is an exploded perspective view of FIG. 1; FIG. 4 is a cross- FIG. 5 is a rear perspective view illustrating the structure of the outer panel of the PC cage for adjusting the width and height according to the present invention. And FIG. 6 is a perspective view showing the height expansion of the outer panel in the state of FIG.

Referring to FIGS. 1 to 6, a PC-cabling substructure 100 capable of adjusting the width and height according to the present invention includes a main frame 110, a width adjusting member 120, an outer panel 130, And a height expanding member 140.

The main frame 110 is made of metal and has a bottom open, and is formed as a hollow rectangular column.

The main frame 110 includes a height adjusting member 111 attached to the center of the bottom surface of the upper surface so as to adjust the height of the main frame 110. The main frame 110 is vertically installed on the other end of the height adjusting member 111, (Not shown). At this time, it is preferable that the height adjusting member 111 is one selected from a hydraulic cylinder, an electric cylinder, and a pneumatic cylinder.

Also, it is preferable that the main frame 110 is provided with a ring 115 for coupling the lifting equipment such as a crane or a forklift blade to the upper surface thereof.

The width adjusting members 120 are respectively installed on the outer surface of the main frame 110 to adjust the width of the width adjusting members 120. At this time, the width adjusting member 120 is preferably selected from a hydraulic cylinder, an electric cylinder, and a pneumatic cylinder, and is installed in the same manner as the height adjusting member 111 and operated by the same power.

The outer panel 130 has a horizontal portion 131, a slanting portion 133 and a vertical portion 135 extending in the height direction so as to have the same shape as the PC culvert. The center of the slanted portion 133 is fixed to the width adjusting member 120 and is moved back and forth by the width adjusting member 120 to expand the width.

The vertical part 135 of the outer panel 130 is formed in the form of a "trainer" so that the horizontal part 131 of the outer panel 130 is symmetrical with the horizontal part 131 .

The horizontal portion 131 and the vertical portion 135 are extended by a hinge so that the space between the horizontal portion 131 and the vertical portion 135 adjacent to each other when the length and the width are expanded, As shown in Fig.

A slot hole 139 is horizontally formed horizontally in the horizontal portion 131 or the slanting portion 133 or the vertical portion 135 and a plurality of reinforcing bars fixing the reinforcing bars to the slot holes 139 150) is installed to arbitrarily adjust the spacing of the backing.

The height expanding member 140 includes an LM guide 141, a guide block 143, and a connection frame 145 (not shown) so as to extend the height of the outer panel 130 by vertically moving the width adjusting member 120 in a horizontal state. A ball screw 147, and a rotation motor 149. The ball screw 147 and the rotation motor 149 are connected to each other.

The LM guides 141 are installed vertically in the longitudinal direction at the center of the outer surface of the main frame 110.

The guide block 143 is fastened to the LM guide 141 and moved up and down along the LM guide 141.

The connection frame 145 is horizontally coupled to the four guide blocks 143 to move them simultaneously.

The ball screw 147 is installed so as to move any one of the plurality of guide blocks 143 and is installed on the side surface of the main frame 110 such that both ends thereof are rotatable by the bearings B.

The rotary motor 149 is installed at a lower end or an upper end of the ball screw 147 and connected to the ball screw 147 by a belt or a chain so as to rotate the ball screw 147 in both directions.

Hereinafter, a method of arranging a PC culvert according to the present invention capable of adjusting the width and height will be described in detail with reference to the accompanying drawings.

FIGS. 7 to 13 are process explanatory diagrams for explaining a method of arranging a PC culvert for width and height adjustment according to the present invention.

7, the operator fixes the main frame 110 vertically on the ground using the pedestal 113, and adjusts the height of the main frame 110 through the height adjusting member 111 (S10).

8, when the height of the main frame 110 is adjusted, the width of the outer panel 130 is adjusted by adjusting the length of the width adjusting member 120 and adjusting the height of the height extending member 140. [ And the height are adjusted (S20). At this time, the height expanding member 140 may be fixed, the width may be adjusted, the width adjusting member 120 may be fixed, and only the height may be adjusted.

That is, the length of each of the width adjusting members 120 is equally extended to move the outer panel 130 forward.

Then, the horizontal part 131 of the outer panel 130 and the horizontal part of the adjacent outer panel are caught, and the vertical part 135 of the outer panel 130 and the vertical part of the adjacent outer panel are warped The width is extended.

When the width is expanded, the extension panel 137 is rotated to fill a space between the adjacent horizontal portion 131 and the vertical portion 135. At this time, a plurality of the extension panels 137 may be manufactured to have different widths and correspond to the size of the space, and a separate locking device (not shown) is preferably installed to fix the extension panel 137 Do.

9, the operator adjusts the spacing of the reinforcing bars 150 in the slot hole 139 (S30). At this time, it is preferable that the reinforcing bar fixing clip 150 is fixed by itself, but it may be more stably fixed to the outer panel 130 by using a separate bolt or the like.

10, a horizontal reinforcing bar 1a is disposed in a horizontal direction through a reinforcing bar fixing clip 150, a vertical reinforcing bar 1b is joined to a horizontal reinforcing bar 1a in a vertical direction, (Step S40).

The point at which the horizontal reinforcing bars 1a arranged along the horizontal part 131 and the vertical part 135 intersect at right angles is referred to as a joint part so that the overall cross-sectional shape of the first reinforcing bar 1 is a rectangular or square shape Or the overall cross-sectional shape of the first reinforcing bar 1 may be formed at the corner portion by connecting the points of the horizontal portion 131 and the slanting portion 133 and the points of the vertical portion 135 and the slanting portion 133 as joints. It is possible to have a diagonal portion.

The reason why the two types of the first reinforcing net 1 can be formed is as follows. In the case of the reinforcing net used in the conventional PC culvert, the first reinforcing net is located on the inner side in order to produce one culvert, In this case, since the outer edge of the PC culvert has a rectangular or square shape in cross section and the inner edge has a diagonal shape in cross section, the first and second reinforcing net This is because shapes must be made in the same shape.

For reference, the inner edge of the PC culvert has a diagonal part because a pipe-shaped material for connecting a plurality of PC culverts in a straight line is connected to the chain so that it can be inserted into the corner part or lifted to the heavy equipment for transporting the culvert It is considered that the thickness is reinforced so as not to be vulnerable to breakage in the process of installing the material at the corners, etc. Also, when the culvert is used in the same channel as the sewerage, There is also an effect to avoid.

Then, the size of the main frame is reduced and separated from the first reinforcing bar network as shown in FIG. 11 (S50).

Then, as shown in FIG. 12, the main frame is elevated above the first reinforcing bar using a height adjusting member, and then the main frame is discharged from the first reinforcing bar via the lifting device (S60).

Finally, as shown in FIG. 13, a reinforcing bar is additionally disposed and joined to the outside of the first reinforcing net to produce a second reinforcing net (S70).

Therefore, according to the present invention, when the width and length of the outer panel 130 are variable, the size of the entire reinforcing bar network can be adjusted correspondingly. In particular, in a typical PC culvert, It is possible to flexibly cope with various situations such as a need to prepare a different reinforcing net or a rebar net when the size of the culvert is different.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

1a: horizontal reinforcement 1b: vertical reinforcement
1: first reinforcing net 3: second reinforcing net
110: main frame 111: height adjustment member
113: pedestal 115: collar
120: width adjusting member 130: outer panel
131: horizontal part 133: oblique part
135: Vertical section 137: Extension panel
139: Slot hole 140: Height expanding member
141: LM Guide 143: Guide Block
145: connecting frame 147: ball screw
149: Rotary motor 150: Reinforcing clip

Claims (8)

A main frame having a bottom open and formed in a hollow rectangular column shape;
A width adjusting member installed on an outer surface of the main frame and adjusting a width of the main frame by adjusting the length thereof;
The horizontal part, the oblique part and the vertical part extend in the height direction so as to form the same shape as the PC culvert, and the four parts are separated from each other in the same form, and the central part of the oblique part is fixed to the width adjusting member, An outer panel which is moved forward and backward by a member to expand its width; And
And a height expanding member for increasing the height of the outer panel by vertically moving the width adjusting member in a horizontal state.
The method according to claim 1,
The main frame includes:
A height adjusting member attached to the center of the upper surface bottom to adjust the height at the ground;
Further comprising a pedestal installed perpendicularly to the other end of the height adjusting member, the pedestal being installed on the ground.
The method according to claim 1,
The width-
And the pneumatic cylinder is one selected from a hydraulic cylinder, an electric cylinder, and a pneumatic cylinder.
The method according to claim 1,
The horizontal portion of the outer panel
It is formed in the form of "
The vertical part of the outer panel
Wherein the width and height of the PC cage are adjustable such that they are symmetrical with respect to the horizontal part.
5. The method of claim 4,
Wherein the horizontal portion and the vertical portion are formed,
Wherein the extension panel is formed so as to be folded from the end to the inner side so as to fill the space between the adjacent horizontal portion and the vertical portion when the length and the width are expanded, respectively.
5. The method of claim 4,
In the horizontal part, the oblique part or the vertical part,
And a plurality of reinforcing bars for fixing the reinforcing bars are installed in the slot holes to arbitrarily adjust the spacing of the reinforcing bars.
5. The method of claim 4,
The height-
An LM guide installed vertically in the longitudinal direction at the center of the outer surface of the main frame;
A guide block moved along the LM guide;
A connecting frame horizontally coupled to the plurality of guide blocks to simultaneously move the plurality of guide blocks;
A ball screw installed so as to move any one of the plurality of guide blocks and installed on both sides of the main frame such that both ends thereof are rotatable by bearings; And
And a rotating motor provided at a lower end or an upper end of the ball screw and rotating the ball screw.
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