KR101136895B1 - Arch style wale structure - Google Patents

Abstract

PURPOSE: An arch type waling structure is provided to apply to all kinds of construction fields such as a composite construction, a sheathing construction etc. and offer a sufficient rigidity with respect to the soil pressure in spite of a compact volume. CONSTITUTION: An arch type waling structure comprises first and second straight members(110,120), and an arch member(130). The first and second straight members respectively comprises an end projection portion and a round portion(117,127) in a side. The other sides of the first and second straight members are face contacted to a retaining wall or the lower surface of a lining board. The arch member is arranged between the first and second straight members and respectively joined to the first and second straight members by a connection member.

Description

ARCH STYLE WALE STRUCTURE}

The present invention relates to an arc-shaped band-like structure, in particular to reinforce the stiffness of the band itself by using the arching effect in a compact structure without increasing the volume, so that it can be applied to various construction sites, such as perforation construction, closed-type mud The structure is directed to an arcuate band-like structure with improved structure.

In general, the construction method in the case of digging in order to make a basement of an existing subway construction or a building, first drills a hole along the planned plane to the design depth, and installs a vertical pile.

After the installation of the vertical pile, the excavation is partially carried out and the mold beam and the perforated plate are installed.

Subsequently, after the installation of the perforated plate is completed, the subsequent construction is carried out while the excavation work and the installation of the brace according to the excavation are repeated.

Therefore, in order to design such a temporary facility, it is necessary to repeatedly calculate the earth pressure and load applied to the brace in the excavation stage and install the brace to endure the maximum value.

The design and construction in this way requires a large number of braces, and in most cases, the braces are arranged very tightly within 2-3m, and the braces arranged in this way can be used to transport construction materials, carry in heavy equipment, and construct the construction. It becomes a very serious obstacle to the work, and when the structure is installed later, it causes enormous obstacles in formwork or reinforcing work, and since the formation of many holes in the structure cannot be avoided, the completed underground structure There is a serious problem with the waterproofing.

Among the temporary construction methods for the construction of underground structures, there is a method of supporting the steel pile using earth anchors, which is not supported in the above-mentioned method, and this method inserts steel wires or rods by drilling sloped holes into the back ground of the pile. After fixing the end of the inserted steel rod using a mechanical method or a chemical method such as epoxy or cement grouting, the steel bar is tensioned to fix the steel pile.

The temporary facility constructed in this way is a method that has the advantage of improving the difficulty of the construction by securing sufficient internal space.

However, the biggest drawback of this method is that when this method is applied in a complex city, most of the cases invade adjacent private lands, and there is much room for civil complaints.

As shown in FIG. 1, the existing strip-shaped structure is mostly a structure in which a strip-shaped strip is supported by a brace. In this case, since the external load is supported only by a straight strip consisting of only straight lines, the load capacity is not only small, but also has a short length (load support length) between the braces.

In addition, since a large compressive force acts on the brace, a cross brace is required to have a large cross section, which increases the consumption of materials and increases the load, thereby degrading work efficiency.

As a prior art for overcoming this problem, Patent No. 10-188465 and Utility Model 20-247053 and Japanese Patent No. 837994 propose a method of reinforcing a band using prestressing. This method is to increase the spacing between braces by tensioning steel wires by installing additional bands on the already installed bands, one of which has additional bands and the other to reinforce the flanges of existing H beams. have.

The above method is expected to have some effect in widening the spacing of the brace, but since the steel wires are arranged in a straight line, unlike the parabolic moment distribution generated in the band due to earth pressure, a parent of a certain size is generated. Since the moment due to and its distribution are different from each other, there is a limit to the length of the band to be reinforced.

However, conventionally, in the case of the band length adopting the above-mentioned prestress method, since the steel wire is fixed at the end of the band length, the arrangement curve of the wire cannot be extended for a long time, and the bending of the steel wire occurs, thereby not only weakening the portion of the steel wire. There was a problem in that the tension moment curve of the arc shape which is variable according to the position of shortened could not be obtained.

In addition, structural weaknesses such as bending due to insufficient strength of the compressive and tensile force generated as the force is transmitted, and there is a problem in that the fixing state of the wire is severely released.

On the other hand, the domestic patent registration No. 10-0998253 "soil temporary construction structure", as shown in Figure 2, a straight strip is coupled to the slope of the earth wall, the reinforcement beams of the arc-shaped structure on the back of each strip Is placed.

Such a structure has the advantage of reinforcing the stiffness of the strip, while the above-described structure is applicable only to the closed-walled wall of a rectangular or square cross-sectional structure, and the overall volume and weight are heavy so that the work efficiency is reduced. Has

The present invention has been created in view of the above-mentioned problems, and the object thereof is applicable to various construction sites such as rehabilitation construction and closed type mudguard, and also satisfies the stiffness against earth pressure while being compact in volume. It is to provide an arcuate stripe structure that has been improved in structure.

The present invention for achieving the above object and the first and second linear members of the H-beam form having a form that is arranged to be spaced apart from each other on both sides and toward the end facing each other,

Arranged at the center to connect the both ends of the first and second linear members, respectively coupled to the first and second linear members via a connecting means and having an arch-shaped arch member that is bent outward toward both ends It features.

The connecting means includes a stepped stepped portion formed at each of the joint portions of the first and second linear members and the arch member, and a shear generated on the first and second linear members and the arch member side by mutual interference of the stepped portions. It is to strengthen the resistance.

The connecting means is formed with round parts to be in contact with the shape of the linear member on one side surface of the first and second linear members facing each other.

The connecting means is disposed on the upper side of the round portion and fixed by welding so that one side is in surface contact with the other side of the arch member, and the other side is fixed by welding so as to be in surface contact with one side inner circumferential surface of the first and second linear members, respectively. It is provided with a first reinforcing plate.

The connecting means further includes a plurality of second reinforcing plates arranged to be interposed between both flanges of the first and second linear members, and a third reinforcing plate coupled to be interposed between both flanges of the arch member. It is preferable.

 Measurement means for measuring the amount of deflection of the arch member by the earth pressure is further provided, wherein the measuring means is a fixed plate which is fixed perpendicular to one side of the arch member,

An inner measuring rod which is fixed to be disposed horizontally on an upper portion of the fixing plate and has a scale formed on an outer circumferential surface thereof;

It is fitted to surround the outer circumferential surface of the inner measuring rod is arranged to allow forward and rearward sliding movement, and the outer measuring rod and the end is in contact with one side of the retaining wall and formed with a see-through window to identify the scale portion from the outside. ,

It is provided with a spring member interposed between the inner and outer measuring rods to impart an elastic force to the outer measuring rods.

As another example of the measuring means, the measuring means is fixed to the outer end of the first and second linear members, respectively, and the upper bracket is disposed higher than the first and second linear members;

A measuring unit having scales formed in front and rear directions on the web upper surface of the arch member,

Both ends are provided with a wire member fixed to the fixing brackets so as to cross the measurement unit.

It is further provided with a connecting plate coupled to the outer end side of the first and second linear members and for connecting to the connection beam, respectively coupled to both side end sides of the arch member.

The arch member is further provided with a tension means for imparting a tension force, the tension means is a fixing unit which is respectively installed at both ends of the arch member, both ends are fixed to the fixing unit of both sides and disposed in the longitudinal direction of the arch member And a tension member for imparting tension.

The tension means has a through hole through which the tension member penetrates the arch member.

First, since the first and second linear members and the arch members are integrally coupled by a joining method, such as welding, the arching effect is obtained, and thus the useful effects of reinforcing the rigidity of the strip itself are obtained.

Second, since the arching effect can be obtained with a compact structure without increasing the volume, it can be applied to various construction sites has the advantage that the versatility is increased.

Third, by connecting the first and second linear members and the arch member using the first, second, third, and fourth reinforcement plates, the reinforcement effect can be obtained, and thus the load-bearing force against the bending displacement can be increased.

Fourth, since the tension means are employed in the arch member, it is possible to obtain a larger load capacity by adding the load capacity and tension force of the tension member has a useful advantage to reduce the cross-sectional size of the brace.

Fifth, since the measurement means for the bending displacement is provided, it is possible to measure the bending displacement without a separate bending displacement measuring device has an effect that can increase the safety.

1 is an exemplary view briefly showing the load capacity of a general strip.
2 is a plan view schematically showing an existing integrated temporary structure.
Figure 3 is a plan view showing an embodiment of an arc-shaped band-like structure according to the present invention.
Figure 4 is a plan view showing a state before coupling of the first and second linear members and the arch member of the present invention.
Figure 5 is an exploded perspective view showing a state before coupling of the first and second linear members and the arch member of the present invention.
Figure 6 is a perspective view showing a state before coupling of the connecting plate and the coupling plate of the present invention.
7 is a perspective view of FIG. 3.
8 is a perspective view showing a state in which the measuring means is provided in the arched band-like structure of the present invention.
9 is an installation state of the measuring means of the present invention.
Figure 10a, 10b is a use state diagram showing the use state of the measuring means of the present invention before and after use.
11 is a plan view showing another example of the measuring means of the present invention.
12 is an enlarged view schematically showing a state of use of FIG. 11;
Figure 13a, 13b, 13c, 13d, 13e is a plan view showing a state in which the arc-shaped band structure corresponding to an embodiment of the present invention is applied to various construction sites.
14 is an exemplary view schematically showing the reinforcing effect of the shear resistance by the stepped portion of the present invention.
Figures 15a, 15b schematically illustrates the load-bearing relationship between the arched strip structure and the brace in the present invention.
Figure 16 is a perspective view showing another embodiment of the arched strip structure according to the present invention.
17 is a plan view showing a state before coupling of the first and second linear members, the arch members, and the tension means of the components of FIG.
18A, 18B, 18C, 18D, and 18E are plan views showing a state in which an arc-shaped band structure according to another embodiment of the present invention is applied to various construction sites.
Figure 19a, 19b is a view schematically showing a state in which the load-bearing force and the tension force acts by the tension means of the present invention.

The present invention can be applied not only to various types of temporary structures such as temporary sites and bridges, but also to increase the stiffness of the strip itself by using the arching effect of the arch member to reinforce the load capacity of the strip for earth pressure and to minimize the volume. The structure has been improved.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An embodiment of the arcuate band-like structure according to the present invention will be described with reference to FIGS. 3 to 15, the configuration of which is formed on one side and round portions 117, 127, respectively, and the other side is a wall of mud walls. (1) Or the first and second linear members 110, 120 and the first and second linear members 110, 120 and 120 are arranged in contact with the lower surface of the perforated plate 50 and spaced apart from each other, and the widths of the inner ends facing each other are narrowed. Arranged between the linear members 110, 120 and the arch form of the arch member 130 is coupled to the first and second linear members 110, 120 through the connecting means, respectively, and bent outwards toward both ends from the center It is composed of

In more detail, the basic shape of the first and second linear members 110 and 120 and the arch member 130 has an H beam shape having both flanges and webs.

Coupling of the first and second linear members 110 and 120 and the arch member 130 illustrates a structure in which the first and second linear members 110 and 120 are joined to each other by welding, and may be coupled through fastening members such as bolts and nuts. When coupled via the fastening member, a configuration such as a bracket for through coupling of the bolt may be added.

The round parts 117 and 127 of the first and second linear members 110 and 120 are formed in a shape corresponding to the shape of the arc member 130 of the arc shape to be joined.

Since the stepped portions 115 and 125 of the first and second linear members 110 and 120 are formed in a step shape, the welding area necessary for joining the stepped portions 135 with the arch members 130 to be joined is formed. Not only can be widened to reinforce the strength, but also the shear resistance generated on the first and second linear members 110 and 120 and the arch member 130 by mutual interference can be reinforced. Reference)

The connecting means is disposed above the round parts 117 and 127 and fixed by welding so that one side thereof is in surface contact with the other side of the arch member 130, and the other side thereof is the first and second linear members 110. A first reinforcing plate 210 is fixed by welding so as to be in surface contact with one side inner circumferential surface of the 120.

The first reinforcing plate 210 has a shape corresponding to the shape of the round parts 117 and 127 having a narrower width toward the end.

The connecting means is disposed so as to be interposed between the flanges on both sides of the first and second linear members 110 and 120 and both ends are welded to the inner surfaces of both flanges of the first and second linear members 110 and 120 by welding. A plurality of second reinforcing plate 310, and the third reinforcing plate 320 and the first and second linear members 110, 120 and the arch member coupled to be interposed between the two flanges of the arch member 130 ( The fourth reinforcing plate 230 is further provided with an end coupled to the other flange of the first and second linear members 110 and 120 and one side flange of the arch member 130 to be connected between the ends 130 by welding.

The second and fourth reinforcement plates 310 and 230 are arranged to be bent perpendicularly to each web portion to have a function of preventing reinforcement and bending deformation against earth pressure.

The third reinforcing plate 320 is disposed at an angle parallel to the web of the arch member 130 to be located in the middle portion of the arch member 130 to the load transmitted through the retaining wall (1) or the perforated plate (50) Function to reinforce the load capacity.

Then, the first and second linear members 110, 120, the outer end side of the connecting plate 410 of the rectangular plate shape is coupled to the connection beam 30, both ends of the arch member 130 Each side of the coupling plate 420 of the rectangular plate shape is coupled.

The coupling of the connecting plate 410 and the coupling plate 420 is integrally coupled by welding.

In addition, protruding pieces 415 and 425 are formed on one side surfaces of the connecting plate 410 and the coupling plate 420 to protrude at right angles to the respective web portions, and to be welded to the respective web portions.

The protruding pieces 415 and 425 are formed to be divided into upper and lower parts so as to avoid interference with the web portion.

In addition, one embodiment of the present invention, it is preferable to further include a measuring means 500 for measuring the amount of bending displacement of the arch member 130, the load moment acts the most.

As an example of the measuring means 500, as shown in FIGS. 8 to 10, the fixing plate 510 is fixed to one side of the arch member 130 and is disposed to protrude upward, and the fixing plate 510. The inner measuring rod 520 and the outer measuring surface of the inner measuring rod 520 that are fixed to be horizontally fastened by a nut member 512 to the upper part of the upper side thereof, and the scale 522 is formed on the outer circumferential surface thereof, The outer measuring rod is arranged to enable the front and rear sliding movement, the end is in contact with one side surface of the retaining wall (1) and the sight window (535) is formed to identify the graduation portion 522 from one side to the outside. 530 and a spring member 540 interposed between the inner and outer measuring rods 530 to impart an elastic force to the outer measuring rod 530.

In addition, a cap member 550 made of a material such as rubber is fitted at the end of the outer measuring rod 530 to come into contact with the retaining wall 1.

The measuring means 500 is an outer measuring rod 530 is the inner side when the deflection displacement occurs by earth pressure or vertical load after the end of the outer measuring rod 530 is in contact with the retaining wall 1 or the perforated plate 50 The sliding rod moves along the measuring rod 520 in the longitudinal direction (reverse direction), and at this time, the scale 522 of the inner measuring rod 520 is checked through the viewing window 535 of the outer measuring rod 530 to move the movement amount. On the basis of this, the amount of bending displacement can be measured.

On the other hand, as another modified example of the measuring means 500, as shown in Figures 11 and 12, respectively fixed to the outer end of the first and second linear members 110, 120 and the upper connecting plate 410 Fixed bracket 560 disposed higher than the upper surface of the, the measurement unit 580 is formed on the web upper surface of the arch member 130 in the front and rear directions, and both ends are fixed to the fixing brackets 560, respectively The wire member 570 is disposed to cross the measurement unit 580.

The wire member 570 is coupled in a structure in which both ends are fixed to the upper portion of the fixing bracket 560 so as to be disposed at a height spaced apart from the upper side of the arch member 130.

Because of this, the wire member 570 is fixed to the first and second linear members 110, 120 that are relatively unaffected by earth pressure or load, compared to the arch member 130, the arch member 130 in plan view Can be easily measured.

That is, when the amount of bending displacement occurs in the arch member 130, the wire member 570 is fixed in the almost right position when viewed from the upper side, while the measurement unit 580 of the arch member 130 bent by earth pressure or load By checking it will be able to measure the amount of deflection of the arch member 130 by the amount of forward and rearward movement.

Another embodiment of the present invention will be described with reference to FIGS. 16 to 19, and overlapping descriptions of the same elements as those of the previous embodiment will be omitted.

The configuration of the arch member 130 is further provided with a tension means 600 for imparting a tension force, the tension means 600 is a known anchorage 610 which are respectively installed at both ends of the arch member 130, and Both ends are fixed to the fixing unit 610 of both sides and disposed in the longitudinal direction of the arch member 130 is composed of a tension member 620 for imparting a tension force.

The tension member 620 may employ a known tension member such as PC steel wire, steel rods, rebar, etc., and may employ a single tension member, but is preferably arranged in a plurality of upper and lower portions to give a greater tension. Do.

In addition, the arch member 130 is formed with a through hole 136 in one flange so that the tension member 620 passes. Since both ends of the arch member 130 are bent to the outside, the tension member 620 is one side flange to tension after the tension member 620 is fixed to the fixing unit 610 fixed to the coupling plate 420. Because it must penetrate.

Referring to the operation of the embodiments of the present invention having such a configuration as follows.

Arch-shaped band-like structure 100 according to the present invention, first briefly explaining the assembly process, the other side of the one side portion and the arch member 130 of the first and second linear members 110, 120 are spaced apart from each other. The surface is joined to the surface by welding, by combining the first, second, third, fourth reinforcing plate 210, 310, 320, 230 by parts using the first and second linear members 110, 120 and Connect or reinforce the arch member 130.

At this time, the stepped portions 115 and 125 of the first and second linear members 110 and 120 and the stepped portions 135 of the arch member 130 are joined in a stepped shape to be engaged with each other to increase the area of the welded portion. It has a joining structure that is strong and its load capacity is enhanced.

In addition, the round parts 117 and 127 of the first and second linear members 110 and 120 are welded to the other flange outer surface of the arch member 130 by welding.

Subsequently, the connecting plate 410 is welded to the outer end side surfaces of the first and second linear members 110 and 120 by welding, and the coupling plate 420 is welded to both side end sides of the arch member 130. Bonding completes the assembly process as the arcuate strip structure 100.

The arcuate stripe structure 100 in which the assembly process is completed has a single stripe structure in which the first and second linear members 110 and 120 are disposed at both ends, and the arch member 130 is disposed in the middle.

This is because the load capacity of the arch member 130 with respect to the working load as shown in Figure 15, the amount of compression force acting on the brace 20 due to the resistance of the arch member 130 is reduced, Compared to the first and second linear members 110 and 120, the cross-sectional size of the brace 20 may be reduced.

In this case, workability is improved and cost reduction is achieved.

That is, the arcuate band-like structure 100 of the present invention has an arching effect due to the structural characteristics of the arch member 130, due to this arching effect greatly increases the load capacity of the band itself, and due to the increased resistance to support the load The effect is that the length is greatly increased.

On the other hand, in the case of another embodiment of the present invention having the tension means 600, in addition to the arching effect of the previous embodiment, the tensile force of the tension member 620 is added to provide greater resistance to bending deformation caused by external load. It has the effect that the load capacity is further increased.

As shown in FIG. 19A, the resistance is reinforced by the tensile force of the soy sauce member, and thus the support length is increased more than in the embodiment.

In addition, when prestressing the tension member 620, since the tension force of the tension member 620 generates additional resistance to the arch member 130, the load capacity of the arch member 130 may be further increased. (See Figure 19B)

In this case, the prestressing effect of the tension member 620 has a preload effect on the external load, and has the advantage of suppressing the front and rear bending displacement.

And, when the arched strip structure 100 corresponding to the embodiments of the present invention, when applied to the closed-type earthenware temporary installation, the support 20 and the support at the corner portion of the earthenware wall (1) relatively less earth pressure acts. Beams are disposed respectively, and the arcuate band-like structure 100 of the present invention is disposed in the middle portion where the earth pressure is relatively large (see FIGS. 13A and 18A).

In this case, the stripe structure of the present invention is not disposed on the entire inner circumferential surface of the soil wall 1, so that the belt-like structure of the present invention is disposed for each portion, so that it has a compact volume and light weight compared to the integrated temporary structure corresponding to the existing No. 10-0998253. It is possible to improve the work efficiency.

When the arched stripe structure 100 of the present invention is applied to a linear cladding facility, the arched stripe structure 100 is arranged to be separated into portions on one side and the other inner circumferential surface of the retaining wall 1, and the support beams 20 are mutually separated. It may be disposed between the arcuate band-like structures 100 facing each other to support a compressive force of earth pressure (see FIGS. 13B and 18B).

It is possible to arrange to connect the arched stripe structure 100 to the inner surface of the retaining wall (1) by using the connecting beam 30 in the linear retaining tent, in this case, the support beam 20 in the direction perpendicular to the connecting beam (30). ) Can be arranged (see FIGS. 13C and 8C).

And, the fire ignition 40 may be installed in the linear retaining tent (see FIGS. 13D and 18D).

On the other hand, the arched stripe structure 100 of the present invention can also be applied to the perforated construction of bridges, etc., not the temporary wall, in this case, the arched stripe structure 100 of the present invention is placed on the upper side of the perforated post pile 60, It has an arrangement structure in which the perforated plate 50 is seated on the upper portion of the arcuate strip-shaped structure 100 (see FIGS. 13E and 18E).

This embodiment shows that the arcuate stripe structure 100 of the present invention can be applied as a single stripe in a variety of earthquake facilities and construction sites.

As the inventive concept allows for various changes and numerous modifications, the present invention should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Description of the Related Art [0002]
1: earth wall 20: brace
25: support beam 30: connecting beam
40: Fahta 50: Double plate
60: perforation post file 100: arched strip structure
110,120: first and second straight members
115,125: stepped portion (of the first and second straight members)
117,127 round part
130: arch member 135: stepped portion of the arch member
136: through hole 210: first reinforcing plate
230: fourth reinforcing plate 310: second reinforcing plate
320: third reinforcement plate 410: connecting plate
415 425: protrusions
420: coupling plate 500: measuring means
510: fixing plate 512: nut member
520: inner measuring rod 522: scale
530: outside measuring rod 535: viewing window
540: spring member 550: cap member
600: tension means 610: anchorage
620: wire member

Claims (10)

The first and second linear members 110 and 120 of the H-beam shape are arranged spaced apart from each other on both sides and the width becomes narrower toward the end facing each other,
Arranged in the center to connect both ends of the first and second linear members 110 and 120, respectively coupled to the first and second linear members 110 and 120 via a connecting means, toward both ends Arch-shaped band-like structure, characterized in that provided with an arch member 130 of the arch shape curved to the outside. The method of claim 1, wherein the connecting means is formed in the stepped portion of the stepped portion 115, 125, 135 of the first and second linear members 110, 120 and the arch member 130, respectively Become
Characterized in that it is to reinforce the shear resistance generated on the first and second linear members 110, 120 and the arch member 130 by mutual interference of the stepped parts (115, 125, 135) Arched strip structure. The method according to claim 1, wherein the connecting means is to be in contact with the shape of the first and second linear members 110, 120 on one side of the end of the first and second linear members 110, 120 facing each other. Round portion 117, 127 is an arc-shaped belt structure, characterized in that formed. The method according to claim 3, wherein the connecting means is disposed on the upper side of the round portion 117, 127 and fixed by welding so that one side is in surface contact with the other side of the arch member 130, the other side is the first , 2 linear members (110, 120) arcuate band structure, characterized in that it has a first reinforcing plate 210 is fixed by welding so as to face each of the inner peripheral surface of the side. The method according to claim 1, The connecting means is a plurality of second reinforcing plate 310 is disposed so as to be interposed between the two flanges of the first and second linear members 110, 120 and coupled;
Arched strip structure characterized in that it further comprises a third reinforcing plate 320 coupled to be interposed between the two flanges of the arch member (130). The method of claim 1, further comprising a measuring means 500 for measuring the amount of deflection of the arch member 130 by earth pressure,
The measuring means 500 is a fixed plate 510 is fixed to the vertical side of the arch member 130, and
An inner measuring rod 520 fixed to the upper portion of the fixing plate 510 and having a scale portion 522 formed on an outer circumferential surface thereof;
It is fitted to surround the outer circumferential surface of the inner measuring rod 520 and is arranged to allow forward and rearward sliding movement. The outer measuring rod 530 and the viewing window 535 is formed so that it can be identified from,
An arc-shaped belt structure, characterized in that provided with a spring member 540 interposed between the inner and outer measuring rods (520, 530) to impart an elastic force to the outer measuring rod. The method of claim 1, further comprising a measuring means 500 for measuring the amount of deflection of the arch member 130 by earth pressure,
The measuring means 500 is fixed to the outer end of the first and second linear members 110, 120, respectively, and the fixing bracket 560, the upper portion is disposed higher than the first and second linear members 110, 120 )and,
A measurement unit 580 having scales formed in front and rear directions on the web upper surface of the arch member 130,
Both ends are fixed to the fixing brackets (560), each of the arcuate strip structure characterized in that it comprises a wire member (570) disposed to cross the measurement unit (580). The connecting plate 410 of claim 1, which is coupled to the outer end side of the first and second linear members 110 and 120 and is connected to the connection beam 30.
Arching strip-shaped structure characterized in that it further comprises a coupling plate 420 respectively coupled to both side end sides of the arch member (130). According to any one of claims 1 to 8, The arch member 130 is provided with a tension means 600 for imparting a tension force,
The tension means 600 is a fixing member 610 which is respectively installed at both ends of the arch member 130,
Both ends are fixed to the fixing unit 610 of the both sides and the arcuate stripe structure characterized in that it is provided with a tension member (620) for imparting a tension force in the longitudinal direction of the arch member (130). 10. The arch-shaped belt structure of claim 9, wherein the tension means (600) has a through hole (136) through which the tension member (620) penetrates in the arch member (130).

Images