KR100915800B1 - Apparatus for adjusting tention of membrane structure - Google Patents

Abstract

A tension control apparatus for a membrane structure is provided to measure tension applied to the membrane structure at the same time fixing the membrane structure and to tense the completed structure again when the tension is decreased. A tension control apparatus for a membrane structure comprises a membrane fixing device fixing a membrane, and a tension application device which is connected to the membrane fixing device to apply tension to the membrane and perform re-tension after tension measurement and construction. The membrane fixing device is composed of a holder(10) fixing cables on the membrane surface or a cable fixing pipe fixing the membrane at the corner of the membrane structure. The tension application device comprises a fixing bolt(12) combined with the membrane fixing device to apply tension to the membrane, an elastic member surrounding the fixing bolt, and a case member(14) embedded with the fixing bolt. The case member includes a first plate in which the fixing bolt is penetrated and which fixes the other end of the elastic member, and a second plate in which the fixing bolt is penetrated and which fixes one end of the elastic member and moves tightening/loosening of the fixing bolt and nut.

Description

Membrane Structure for Membrane Structure

The present invention relates to a membrane material tension control member capable of adjusting and measuring the tension, and more particularly, the membrane material of the membrane structure from the elastic modulus of the elastic member including an elastic member surrounding the fixing bolt for adjusting the tension by fixing the membrane material The present invention relates to a tension control member capable of measuring tension and measuring tension applied thereto.

The present invention can be applied to all the membrane material fixing member for fixing the membrane material in the membrane structure using the membrane material and applying tension to the membrane material.

Membrane structure is a form-resisting large space structure that uses a coated fabric as a main structure of large space structure as a main material and gives an initial tension to transfer the force to the membrane itself as a tensile force. Say. In particular, it refers to a structure that maintains a stable shape against external loads by using a tensile force on a membrane as a structure to give rigidity to the exterior of the structure.

Such membrane structure is recognized as a large space structure that meets various forms and purposes due to the beauty of plasticity that can create various forms of large spaces and free curves, and economical efficiency, functionality, and construction excellence as materials capable of lightening buildings. It is recognized for its safety and durability compared to the existing structure.

Therefore, the membrane structure is widely used in large-scale stadiums, large martial arts space structures such as indoor stadiums, large-scale factories, temporary buildings such as exhibition facilities, papillon, as well as houses.

The conventional membrane structure is a method for applying an initial tension to a flexible membrane by using a method of fixing the membrane in a state in which tension is applied to a membrane, or by installing a membrane in a state in which tension is previously applied to a structure supporting the membrane. A method of providing tension was used.

However, although tension can be applied to the membrane, there is no way to check how much tension is applied to the membrane. Therefore, the tension is applied to the operator to apply the tension to the eye mass, there was a problem that can not be controlled so that uniform tension is correctly applied to the membrane structure.

In order to solve the problems as described above, an object of the present invention is to provide a tension control member capable of adjusting and measuring the tension that can be accurately measured the tension applied to the membrane material at the same time .

Still another object of the present invention is to provide a tension control member capable of precise tension control and measurement of tension when the structure is completed and the tension is reduced as a result of tension measurement.

In order to achieve the above object, the membrane material fixing member capable of adjusting and measuring the tension according to the present invention is combined with the membrane fixing means for fixing the membrane and the membrane fixing means to supply tension to the membrane, and to re-tension after tension measurement and construction. And a tension supply means.

In addition, the membrane fixing means of the present invention may be composed of a holder for fixing the cable of the membrane surface or a cable fixing pipe for fixing the membrane material of the edge portion of the membrane structure.

In addition, the tension supply means of the elastic member and the elastic member for one end is coupled to the membrane fixing means to wrap the bolt and the fixing bolt to apply the tension to the membrane from the outside, and measure the applied or lost tension It may be configured to include a case member that incorporates.

In addition, the case member of the present invention is the first through which the bolt penetrates, the other end of the fixing the elastic member and the bolt penetrates, and the one end of the fixing the elastic member, but moving according to the tightening / loosening of the bolt It may comprise two plates.

In addition, the elastic member of the present invention preferably provides a tension control member capable of adjusting and measuring the tension, characterized in that the compression spring.

In addition, the elastic member of the present invention is compressed / tensioned according to the tightening / loosening of the fixing bolt, it is possible to measure the tension (F) according to the displacement value (X) and the elastic modulus (K) due to compression during tensioning. It is characterized by.

In addition, the elastic member of the present invention is characterized by reducing the tension loss due to the use by providing a reaction force (compression force) against the tension released when the initial tension is introduced.

In addition, the tension supply means of the present invention is a hydraulic or pneumatic member and the hydraulic pressure for measuring the applied or lost tension of the bolt and one end is coupled to the membrane fixing means to apply the tension to the membrane from the outside; Or it can be produced, characterized in that it comprises a case member containing a pneumatic member.

In addition, the above-described hydraulic member of the present invention can be made by including a hydraulic gauge for applying the hydraulic pressure and the hydraulic gauge for measuring the tension introduced by checking the displacement from the hydraulic pressure applied to the hydraulic pressure.

In addition, the above-described pneumatic member of the present invention can be made by including a pneumatic gauge for measuring the tension introduced by checking the displacement from the pneumatic to apply the pneumatic and the hydraulic pressure applied to the pneumatic.

In addition, the above-described hydraulic member or pneumatic member, characterized in that to provide a reaction force (compression force according to the hydraulic pressure or pneumatic pressure) for the tension is released when the initial tension is introduced to reduce the tension loss due to use.

As described above, the membrane tension control member capable of adjusting and measuring the tension according to the present invention can accurately measure the tension applied to the membrane material of the membrane structure, thereby precisely adjusting the tension applied to the membrane material to uniform tension on all the membrane materials. An excellent effect that can be applied occurs.

In addition, when the tension is reduced through the continuous tension measurement after installation, it is possible to re-tension exactly as much as the reduced, resulting in the excellent effect of maintaining the tension of the membrane structure.

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

<First Embodiment>

1 is a perspective view schematically showing a membrane tension control member capable of adjusting and measuring tension according to a first embodiment of the present invention, Figure 2 is a cross-sectional view of FIG.

3 is a perspective view schematically illustrating a membrane tension control member capable of adjusting and measuring tension according to a modified embodiment, FIG. 4 is a horizontal cross-sectional view P-P ′ of FIG. 3, and FIG. 5 is a view of FIG. 3 is a perspective view schematically showing a membrane structure including the membrane tension control member 3.

1 to 5, the membrane tension control member capable of adjusting and measuring the tension according to the first embodiment of the present invention is combined with the membrane fixing means for fixing the membrane and the membrane fixing means to supply the tension to the membrane and measure the tension And a tension supply means capable of retensioning after construction. Membrane tension adjusting member according to the present invention can be applied to all parts to apply the tension in combination with the membrane.

Herein, the membrane fixing means may be configured as a holder 10 for fixing the cable when the membrane fixing means is formed to fix the cable formed at the end of the membrane, and when the membrane is formed to fix the edge of the membrane, It may consist of a fixed pipe 21. In addition, the portion that needs to adjust the tension in the membrane may be installed anywhere.

The holder 10 is coupled to surround the cable formed on the edge of the membrane material, as can be seen through Figure 1 may be formed by a plurality of fixing bolts 12 are coupled in the longitudinal direction of the cable. To this end, the holder 10 may have a long groove into which the fixing bolt may be inserted, and the head of the fixing bolt 12 may be coupled to and fixed to the long groove.

In addition, the cable fixing pipe 21 is configured to include a squid plate 211 (Squid plate) for fixing the membrane material end line (CATENARY CABLE) and a fitting plate (212, Fitting plate) for fixing the membrane in combination with the squid plate Can be.

In addition, the squid plate 211 and the fitting plate 212 may be integrally configured.

The tension supply means is coupled to the membrane fixing member fixed bolt 12 for applying tension to the membrane and the elastic member 13 to surround the fixing bolt from the outside and the case member 14 containing the fixing bolt It can be configured to include. The fixing bolt 12 is coupled to the nut 121 as shown in FIG.

Here, the case member 14 is the fixing bolt penetrates, and the first plate 141 and the fixing bolt through which the other end is fixed and bonded to the membrane structure pipe and the fixing bolt penetrates, and one end of the elastic member It may be configured to include a second plate 142 to move in accordance with the tightening / loosening of the coupling between the fixing bolt and the nut.

Further, the fixing bolt 12 penetrates and further includes inner / outer pipes 141a and 142a extending from the first and second plates 141 and 142 for fixing both ends of the elastic member 13. The inner pipe 141a is inserted into the outer pipe 142a, one of the inner / outer pipes is extended to the first plate 141, and the other is the second plate 142. Can be installed in the extension.

1 and 2 according to the first embodiment of the present invention, the inner pipe 141a extends from the first plate 141, the outer pipe 142a extends from the second plate 142, but vice versa. It is also possible.

And, the fixing bolt 12 may be composed of a threaded thread formed on the front outer circumferential surface.

The first plate 141 may be composed of an L-angle, and the first plate 141 may be a membrane structure itself, and joining means such as welding / bolts / rivets with other structures (columns, beams). Can be combined by.

The outer pipe 142a extending from the second plate 142 moves by the pitch distance of the thread through tightening / unfastening the fixing bolt 12, and the elastic member 13 is also compressed or tensioned. Here, the elastic member 13 may be composed of a spring.

The elastic member 13 has a unique elastic modulus (K) for each material, and the elastic modulus (K) is a value that varies depending on the length of the elastic member, and thus measures the tension applied to the membrane material according to the change of the elastic modulus. can do.

In addition, the elastic member 13 may provide a reaction force (compression force) when the initial tension is introduced into the membrane to act as a reaction to the tension loss factor according to the use to reduce the loss of tension. Thus, the elastic member 13 is to automatically retension the tension.

In general, the membrane material should be applied in equal distribution so that the tension can be calculated in advance, and the elastic member (k) of the elastic member for applying the tension can be calculated in advance. The length of can be estimated and the tension can be measured.

More specifically, the tension (F) and the elastic modulus (K) have a proportional relationship by the law of equilibrium of force as follows.

F (ton) = K (ton / cm) × X (cm), X: displacement from reference point

Assuming that as shown in FIG. 6 (a), the initial tension is set during the initial tension introduced 9ton assuming, 10/3 ton / cm for modulus (K) as the displacement during the initial tension introduced into X ₁ is by the following formula It is calculated as 2.7 cm.

By calculating the displacement X ₁ for applying the initial tension set as described above, the initial tension may be introduced by adjusting the displacement.

After introducing the initial tension as described above, the magnitude of the applied tension can be measured only by measuring the displacement during maintenance. For example, if the displacement (X ₂ ) is measured as 2.4 cm as shown in FIG. It can be calculated as follows.

As a result, it can be seen that a decrease in tension of 1 ton occurs when the initial tension is introduced, and the initial tension state can be restored by controlling the displacement to be 2.7 cm as during the initial tension through re-tension.

Herein, in order to facilitate the measurement of the tension, the change of the tension (ΔF) corresponding to the change of the displacement (ΔX) of the elastic member due to the action (tightening / loosening) of the fixing bolt outside the inner pipe (141a) is easily performed. The scale may be marked for measurement.

The scale may be displayed for each set unit by the tension value (ΔF) applied to the membrane material from the change (ΔX) of the displacement according to the tension / compression of the elastic member 15, the operator through the scale display You can easily identify changes and perform re-tensioning, for example.

1 and 2 as another type, FIG. 3 is a perspective view schematically showing a membrane tension control member capable of adjusting and measuring tension according to a modified embodiment, and FIG. 4 is a horizontal cross-sectional view of FIG. 3. 5 is a perspective view schematically illustrating a membrane structure including the membrane tension control member of FIG. 3. In each of the drawings, the names of the components corresponding to those of FIGS. 1 and 2 are the same, but only symbols are indicated differently. That is, the cable fixing pipe 21, the bolt 22, the case member 24, the fitting plate 211, the squid plate 212, the first plate 241, the second plate 242, the elastic member 23 ), The inner pipe 241a and the outer pipe 242a.

Second Embodiment

FIG. 7 is a perspective view schematically showing a membrane tension control member capable of adjusting and measuring tension according to a second embodiment of the present invention.

Here, the second embodiment according to the present invention is the same as the first embodiment except for the fact that the tension supply means is composed of a hydraulic member or a pneumatic member, so only the distinction is described, and the same configuration is the first embodiment. It will be replaced with the description of the example. (The reference numerals of the drawings shown are corresponding to the bolt 32, the air 33, the pneumatic member 34, the first plate 341, the second plate 342).

According to the second embodiment of the present invention, the membrane tension control member capable of adjusting and measuring the tension is a hydraulic member or a pneumatic member that surrounds the bolt 32 and supplies and measures the tension by the pressure of the fluid or air 33. 34).

When the hydraulic member is formed, the hydraulic member may include a hydraulic gauge for applying hydraulic pressure and a hydraulic gauge for measuring the tension introduced from the hydraulic pressure applied to the hydraulic pressure.

In addition, when formed as a pneumatic member, the pneumatic member may be configured to include a pneumatic gauge for measuring the tension introduced from the pneumatic to apply the pneumatic pressure and the hydraulic pressure applied to the pneumatic.

The oil press or pneumatic unit serves to apply hydraulic pressure or pneumatic pressure to allow length adjustment (compression and tension) by hydraulic pressure or pneumatic pressure, and may be configured to apply hydraulic pressure or pneumatic pressure by a conventional hydraulic pump or pneumatic pump. . Here, specific configurations such as hydraulic or pneumatic valves and fluid or pneumatic tanks are obvious to those skilled in the art, and thus detailed descriptions thereof will be omitted.

In addition, the hydraulic gauge or pneumatic gauge may measure the tension introduced from the hydraulic pressure or pneumatic pressure applied from the hydraulic pressure or the pneumatic pressure. More specifically, the hydraulic pressure or pneumatic pressure can be converted into a tension from the relationship between the hydraulic or pneumatic pressure, the area supplied with the hydraulic pressure or pneumatic pressure, by checking the hydraulic gauge can measure the tension introduced from the current hydraulic pressure or pneumatic pressure have.

Like the elastic member of the first embodiment, the hydraulic member or the pneumatic member provides a reaction force upon introduction of the initial tension into the membrane (compression force due to hydraulic pressure or pneumatic force), which acts as a reaction against the tension loss factor according to the use, so that the tension is lost. Can be reduced. Thus, the hydraulic member or pneumatic member is to automatically retension the tension.

Although the detailed description of the present invention described above has been described with reference to the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, and those skilled in the art will appreciate It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

1 is a perspective view schematically showing a membrane tension control member capable of adjusting and measuring tension according to a first embodiment of the present invention, and FIG. 2 is a plan view of FIG.

3 is a perspective view schematically showing a tension control member capable of adjusting and measuring tension according to a modified embodiment, FIG. 4 is a plan view of FIG. 3, and FIG. 5 is provided with a tension control member of FIG. 3. A perspective view schematically showing one membrane structure.

6 is an exemplary view showing a tension measuring method according to the present invention.

FIG. 7 is a perspective view schematically showing a membrane tension control member capable of adjusting and measuring tension according to a second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

11: holder 12,22,32 bolt

13,23: elastic member 14,24: case member

33: fluid or air 34: hydraulic member or pneumatic member

Claims (11)

delete delete delete In the membrane tension control member is formed at the end of the membrane structure to control the tension, Membrane fixing means composed of a holder (10) for fixing the cable of the membrane surface or a cable fixing pipe (21) for fixing the membrane material of the edge portion of the membrane structure; One end is coupled to the membrane fixing means, the fixing bolt 12 for applying tension to the membrane and the elastic member 13 formed in a structure surrounding the fixing bolt, formed of a case member 14 containing the elastic member Being configured to include a tension supply means; The case member 14, A first plate 141 through which the fixing bolt 12 penetrates and fixes the other end of the elastic member 13; The fixing bolt penetrates, and includes a second plate 142 for fixing one end of the elastic member but moving by the pitch of the thread that is varied according to the tightening / loosening of the coupling between the nut 121 for coupling with the fixing bolt. Membrane tension control member capable of adjusting and measuring the tension. The method of claim 4, wherein The elastic member 13 is a membrane tension control member capable of tension control and measurement, characterized in that the compression spring. The method according to claim 4 or 5, The membrane tension control member is to measure the tension due to compression during tension of the elastic member 13 to derive the displacement value (△ X) of the elastic member, The displacement X2 of the elastic member measured at the time of maintenance is returned to the displacement X1 of the elastic member according to the tension of the membrane material set by the tightening / unscrewing of the coupling between the nuts 121 coupled to the fixing bolt 12. Membrane tension control member capable of adjusting and measuring the tension, characterized in that it can be made. However, the measurement of the tension according to the displacement value of the elastic member is by the following equation. {Equation 1} F (ton) = K (ton / cm) * X (cm) (F is tension, K is elastic modulus, X is elastic member length) delete delete delete delete delete

Images