KR100354551B1 - Steel wire pannel for construction - Google Patents

Abstract

The present invention relates to a core material for a prefabricated steel structure having excellent sound insulation, vibration damping, water repellency, and insulation properties.

According to the high quality and specialization of housing, the structure structure by simple masonry method cannot meet various demands. In order to alleviate these drawbacks, steel houses or houses made of various native materials (ocher, wood, etc.) have been widely used.

In accordance with such a structure, a porous body made of polystyrene foam is embedded in the center, and iron cores are arranged on both sides or one side with a mesh, and then the same instructor is integrated to produce a semi-structure structure. The characteristics of these materials are assembling each other integrally, and then applying finishing materials on both sides or one side, so that all the work is completed to achieve the effect of shortening the air, sound insulation, and improving the thermal insulation effect than the existing masonry method. However, it is difficult to achieve better sound insulation, vibration damping, and insulation by using only polystyrene foam of a single structure, and condensation phenomenon often occurs.

The present invention uses the extruded foamed synthetic resin prepared to form a single membrane in the outermost layer as well as the porous body to block the connection with the internal pores as the elastic porous body, and at the same time, the effect of dust removal, sound insulation, and insulation between the porous body and the elastic porous body is improved. By integrating with the excellent adhesive layer, it is possible to increase the effect of insulation, damping, as well as insulation.

Description

Core material for prefabricated concrete steel structure {Steel wire pannel for construction}

The present invention relates to a core material for a prefabricated steel structure having excellent sound insulation, vibration damping, water repellency, and insulation properties.

According to the high quality and specialization of housing, the structure structure by simple masonry method cannot meet various demands. Proposed to improve this drawback has been to construct a structure, especially a structure by the dry method, and recently, a new house or building using a steel house or various native materials (ocher, wood, etc.) has been spread.

Provided in accordance with such a structure is to embed a polystyrene foam in the center and to place the iron cores on both sides or one side as a mesh to form a semi-structure structure by integrating them with the same reinforcing member. The characteristics of these materials are assembling each other integrally, and then applying finishing materials on both sides or one side, so that all work is completed, and the air is shortened by 1/3 or more than the existing masonry method. It can be completed in a short time. That is, even a structure having various bends can be completed, and since the structures are integrated with each other through iron cores, the structure can be cracked even if there is considerable strength, but there is almost no collapse unless the reinforcement member is ruptured. It is. In addition, there is no difficulty in combining them with various materials so that they can be applied to timber houses, ocher houses, steel houses, existing concrete houses, etc.

While the prefabricated structure composed of the above polymorphic polystyrene foam has various functions, there is a problem of continuing the disadvantages of polystyrene. In particular, polystyrene foam used for building supplies is 50mm thick and has a density of 0.15. In other words, as shown in Fig. 2, the swollen particles 11 of cellular structure are integrated with each other while being in contact with each other. It is natural that these structures have the function of blocking the noise and heat inside the through hole, but for the poststyrene, the bulk type is cut to 50mm according to the building method. Therefore, the swelling particles 11 are cut to partially hold the moisture while the through hole 12 is exposed. That is, when condensation occurs due to a temperature difference between indoors and outdoors, water is stored there and accumulates downward due to its own weight. Accumulation of moisture accelerates decay, regardless of the accumulation of cumulative amounts, and there is no way to prevent corruption unless it is rebuilt.

Another disadvantage is that the use of foam with a density of about 0.15 is possible to block the sound of a certain frequency, but the effect of blocking the noise or vibration having a frequency passing through it is difficult to expect.

According to the present invention, a porous steel core is manufactured by stacking porous bodies having various densities in a multi-layered structure, and then arranging the inclined rebar members to penetrate both sides of the multilayer board and integrating the frames between the reinforcing member and the network structure. The porous material used is a sheet material that extrudes and expands synthetic resin polymers such as polyethylene and polypropylene to a certain density, and forms a bonding layer having vibration damping, sound insulation, water repellency, and elasticity between them and polystyrene to exhibit various characteristics after integration between the two. It was forever.

The present invention also forms a metal foil layer on the outermost layer with a sheet material containing an elastic material in the porous body, or by laminating these layers together in the above-mentioned vibration-damping sound-proofing layer, as well as improving the thermal insulation function, as well as breakthrough of noise and vibration. This made it possible.

1 is a partial cutaway perspective view of a core for a conventional steel structure,

Figure 2 is a partial cutaway perspective view of the core material for a steel structure representative of the present invention,

3 is an enlarged cross-sectional view of the porous body of the present invention;

4 is an enlarged cross-sectional view of the elastic porous body of the present invention;

5 is a cross-sectional structural view of yet another embodiment of the present invention;

6 is a cross-sectional structure diagram of a state in which the metal foil layer of the present invention is embedded;

7 is a partial cutaway perspective view showing another embodiment of the present invention,

8 is a partial cutaway perspective view showing another embodiment of the present invention.

<Detailed Description of Symbols for Main Parts of Drawings>

Reference Signs List 1 adhesive layer 2 porous layer 3 elastic porous layer 4 inclined rebar member 5 lower layer structure 6 upper layer structure 10 boundary membrane

The most representative example of the present invention will be explained based on what is shown in FIG.

In the present invention, the steel steel wire is composed of a mesh as an outer layer and is disposed at a predetermined distance, and the supporting steel wire arranged to cross them in the longitudinal direction is integrated at the contact point, while the core member for the steel structure of the steel structure having the porous member disposed at the center thereof. In

A damping sound-absorbing water repellent adhesive layer 1 is disposed at the center,

One surface of the porous layer 2 having a cellular structure made of a polymer material is disposed so as to be bonded to the vibration damping and sound-absorbing water-repellent adhesive layer 1 described above.

The upper and lower parts are sealed so that one surface of the elastic porous layer 3 configured to block the voids 3C formed therein from the outside is disposed opposite to the porous layer 2 described above.

The reinforcing member 4 penetrating between the porous layer and the elastic porous layer is inclinedly arranged so that the lower layer structure 5 and the upper layer structure 6 of the network structure are arranged at a predetermined distance from the porous layer and the elastic porous layer. It relates to a core material for steel structure welded integrally with the rebar member.

In the present invention, the porous layer 2 and the elastic porous layer 3 are selected from porous forms of polymer synthetic resin such as polyethylene, polypropylene, polyurethane, polyvinyl chloride or polystyrene.

In the present invention, the porous layer 2 induces foaming limited to have a density of 0.015 to 0.03 as shown in FIG. 3 to control the size of the internal pores, and a preferable thickness in actual installation is preferably 30 to 60 mm. The porous layer (2) has a sound insulation function, the main function is to maximize the function of the insulation, the bead-shaped master batch-type polystyrene containing the blowing agent in a predetermined mold and then heated to foam to heat the foam It is a structure in which each particle is integrated with the boundary membrane 10 in the swollen state as shown, and in actual use, the bulk shape is cut to a desired thickness. Due to the characteristics of the structure, the boundary membrane 10 of the swelling particles 11 forms a myriad of holes 12 upon foaming, and absorbs the noise or vibrations through the holes and constrains them in the pores so that the vibrations or noises are removed. In the winter, when the temperature difference between the indoor and outdoor conditions is severe, condensation occurs as the water vapor condenses, these through holes are used as a water migration path, resulting in water condensation.

In the present invention, the elastic porous layer 3 is continuously extruded through an extrusion die maintaining a high temperature so as to maintain a molten state of the synthetic resin, unlike the porous layer 2 described above, as shown in FIG. As a molded structure, the outermost layer 3a and the lowermost layer 3b are foamed during extrusion, and are pressed against the upper, lower, left, and right sides of the die by the pressure of foaming, so that the cellular structure collapses to form a single membrane. Therefore, unlike the porous body, there are countless pores (3c) discontinuously arranged instead of the particles in the swollen state, and even if the spaces between these pores are connected even if they reach the outermost layer and the lowest layer where the single layer is formed by pressure, Blocked the connection. Therefore, even if a constant noise or vibration passes through the outermost layer or the lowermost layer, it is prevented from moving further when the water comes into contact. In addition, the particle diameter of the cavity 3c makes it possible to control the type of vibration or noise to be attenuated by adjusting the density according to the characteristics of the installation site. Particularly suitable in the present invention is to have a density of 0.02 to 0.03. The thickness is 30 to 100mm to increase the thickness as the noise, vibration or internal and external temperature difference is severe, and the thickness of the porous layer 2 is inversely reduced.

In the present invention, the vibration damping sound-absorbing adhesive layer is based on an elastic waterproofing agent such as asphalt, and styrene-butadiene-styrene resin, ethylene-vinyl, and styrene rubber, SBR rubber, neoprene rubber, isoprene rubber, and natural rubber. After dissolving together thermoplastic polymer resins such as acetate and the like, mica, talc, graphite, silica, zinc peroxide, and metal powder were blended with sound-filling components. More specifically, 10 to 40 parts by weight of thermoplastic polymer resin, 50 to 200 parts by weight of a sound-filling component, and 10 to 20 parts by weight of metal powder are homogeneously mixed based on the weight of asphalt. Although these vibration damping acoustic bonding layers 1 may be constituted by separate plate-like sheets, it is most effective to process the laminated layer together when the porous layer and the elastic porous layer are formed together. Another adhesive may be a styrene-based adhesive or a polyethylene-based adhesive in which a polystyrene, a main component of the porous layer, is dispersed in a solvent. It is also preferable to use a mixture of styrene or polyethylene-based adhesive and a certain amount of sound insulation and vibration damping filler.

According to another embodiment of the present invention, as shown in FIG. 5, in addition to the porous layer 2 and the elastic porous layer 3 described above, another porous layer 2-1 and the adhesive layer 1-1 may be provided. The present invention relates to a steel frame core material having a multi-layered structure. In order to exhibit stable characteristics by using the double structure of such structure according to the extreme temperature change or various usage environment. The outermost porous layer (2-1) blocks the temperature, moisture, noise, and vibrations from the outside by continuously overlapping the adhesive layer (1), which functions as a waterproof barrier film, while suppressing vibration and sound insulation. 1-1) and the elastic porous layer (3) restrained the noise and vibration of another frequency and passed even this is to be exhausted in the inner porous layer (2). Therefore, it is suitable to be applied in places such as shopping malls, neighborhood buildings, etc., or in rural residential areas where the temperature difference is severe.

In addition to the above-described shown in Fig. 5, it is also possible to configure a multi-layered structure of three or more, all belong to the technical concept of the present invention. In particular, as shown in Fig. 6 the metal foil layer 13 in the center of the vibration-proof sound-absorbing ) To form. Therefore, by using the unique noise vibration reflection function and heat reflection function of the metal foil layer to enable more powerful soundproofing and vibration damping function.

As another example of the present invention, as shown in FIG. 7, it is used when the building itself is to be renovated through reinforcement work such as dust removal, noise, and insulation on the inner and outer walls of the old building. Specifically, as shown in FIG. 7, the inclined rebar member 4 is installed on one side of the elastic porous layer 3, and the inclined rebar member 4 is installed to be alternately inserted and fixed so that the rebar member is inclined. The exposed both ends of (4) are to be welded integrally at the contact portion in contact with the reinforcing reinforcing member (5), but only a part of the inclined reinforcing member (4) is to be inserted into the inside of the elastic porous layer (3). . That is, these structures are adhered to the inner and outer walls of the old building, and then finished with a mortar treatment on the upper layer structure 5 to form a strong structure as well as to reinforce the characteristics of insulation, vibration damping, and sound insulation. will be.

As another embodiment of the present invention, as shown in FIG. 8, even if the core material having the above single layer structure is applied, the adhesive layer 1 having the functions of vibration damping, sound insulation, and thermal insulation of the present invention is applied to a portion in contact with the lower layer structure 6. And a separate sheet metal sheet layer 14 formed on its upper surface. The thin metal sheet layer 14 uses a material such as aluminum, stainless steel, copper foil, galvanized steel, and the like to block the noise, and to directly reflect the heat reflection and the noise with respect to the constant frequency.

Test results for noise reduction, vibration damping and waterproofing effect using the core of the present invention are as follows.

Test methods were tested based on KS F 2277, KSF 2607 and KS F 2808, respectively.

Test Example 1

The product having the structure shown in Fig. 5 of the present invention was prepared, but the thickness of the porous body was 30 mm, the elastic porous body was 40 mm, and the porous body was 30 mm.

Product Name Comparative product Invention Specification (mm) Polystyrene Foam 100 Porous body 30 + Elastic porous body 40 + Porous body 30 Thermal conductivity 0.03 or less 0.02 or less

As shown in the above test example, it is superior to 0.05 based on the building method and shows an insulation effect improved by 30% or more compared with the comparative product. (Thermal conductivity unit is ㎉ / mｈ ℃)

Test Example 2

Although the structure was almost the same as in Test Example 1, a vibration damping sound-absorbing water-repellent adhesive layer of about 5 mm was formed between the elastic porous body and the porous body.

Product Name Comparative product Invention Specification (mm) Polystyrene Foam 100mm Porous 25 + Adhesive Layer 5 + Elastic Porous 35 + Adhesive Layer 5 + Porous 30 Thermal conductivity 0.03 or less 0.013 or less

As shown in the above test example, the thermal conductivity was reduced by about 43% compared to the reference product. (Thermal conductivity unit is ㎉ / mｈ ℃)

Test Example 3

It was manufactured in almost the same structure as in Test Example 1, except that a vibration damping sound-absorbing water-repellent adhesive layer of 1 mm or less was formed between the elastic porous body and the porous body. In addition, polystyrene and its solvent were included as a component of the vibration damping sound-absorbing adhesive layer.

Product Name Comparative product Invention Specification (mm) Polystyrene Foam 100mm Porous body 25 + adhesive layer 1 + elastic porous layer 35 + adhesive layer 1 + porous body 38 Thermal Conductivity (㎉ / ｍｈ ℃) 0.03 or less 0.017 or less

Next, the sound absorption performance of the Korean Industrial Standard Reverberation Chamber method (KSF 2808) was measured.

Test Example 4

Sound source volume: 203.73㎠

Masturbation room volume: 203.73㎠

Opening area: 3.76 × 2.28 = 8.57㎡

Audio: 1/3 octave band noise

The gap between the openings of the sample was finished with cement mortar, the same material as the sample.

The structure of the test body was 2.28 x 3.76 x 0.1 m based on cement mortar (25 mm) + foamed styrene thermal insulation board (conventional) (50 mm) + cement mortar (25 mm).

In addition, two products of the present invention having the same configuration as in the above-described Test Example 1 were prepared and prepared in the same size as the above-described reference test body.

Test result

Frequency Frequency loss Invention of Test Example 1 Invention of Test Example 2 Invention of Test Example 3

1251602002503154005006308001000125016002000250031504000 40.141.846.043.445.445.644.648.152.952.251.752.050.943.732.830.0 34.235.137.237.539.539.940.142.246.347.243.546.245.839.529.326.4 33.532.532.431.836.538.539.440.241.843.841.642.743.836.828.525.4 33.333.635.433.437.139.039.540.843.745.942.743.644.238.428.725.9

As shown in the above test examples, the sound insulation effect is excellent in a wide range from 125 to 4 kHz.

The porous body, the elastic porous body and the adhesive layer used in the present invention exhibits the above effects due to the vibration damping effect peculiar to the porous polymer. It also exhibits delayed response (lag deformation) due to the inherent viscosity characteristics of the elastic porous body with various voids and the vibration-absorbing sound-absorbing water-repellent adhesive layer, which periodically changes external force (vibration and noise), thereby causing hysteresis This is due to the accompanying energy loss. In other words, the viscoelastic material exhibits mechanical force by partially preserving elastic energy with respect to the periodic force coming from the outside, and partly converts into heat due to the characteristic of viscosity, thereby reducing vibration and noise.

Claims (9)

In the outer layer is made of steel steel wire mesh is arranged at a certain distance, the support steel wire arranged to cross between them in the longitudinal direction is integrated at the contact point while the core member for the steel structure of the steel structure having a structure in which the porous member is disposed in the center, A damping sound-absorbing water repellent adhesive layer 1 is disposed at the center, One surface of the porous layer 2 having a cellular structure made of a polymer material is disposed so as to be bonded to the vibration damping and sound-absorbing water-repellent adhesive layer 1 described above. The upper and lower parts are sealed so that one surface of the elastic porous layer 3 configured to block the voids 3C formed therein from the outside is disposed opposite to the porous layer 2 described above. The reinforcing member 4 penetrating between the porous layer and the elastic porous layer is inclinedly arranged so that the lower layer structure 5 and the upper layer structure 6 of the network structure are arranged at a predetermined distance from the porous layer and the elastic porous layer. Core material for steel structure, characterized in that the welded integrally with the reinforcing member. The method of claim 1, The porous layer 2 is any one of polymer synthetic resins such as polyethylene, polypropylene, polyurethane, polyvinyl chloride or polystyrene, and is foamed so as to have a density of 0.015 to 0.03. 12) Core member for steel structure, characterized in that the through-holes to absorb noise or vibration to be confined in the voids. The method of claim 1, The elastic porous layer 3 is a structure that is continuously extruded through an extrusion die maintaining a high temperature so that the polymer synthetic resin can maintain the molten state of the synthetic resin. The outermost layer 3a and the lowermost layer 3b constitute a single membrane, The voids (3c) of the discontinuously arranged form, the core material for a steel structure, characterized in that to have a density of 0.02 to 0.03. The method of claim 1, The damping sound-absorbing water-repellent adhesive layer (1) is a solvent-melted rubber such as NR rubber, SBR rubber, neoprene rubber, isoprene rubber, and natural rubber, based on an elastic waterproofing agent such as asphalt, and styrene-butadiene-styrene resin and ethylene-vinyl. 10 to 40 parts by weight of thermoplastic polymer resins dissolved together with thermoplastic polymer resins such as acetate, 50 to 200 parts by weight of sound-filling components such as mica, talc, graphite, silica, zinc peroxide and metal powder and 10 to 20 parts by weight of metal A core material for a steel structure, characterized in that either one of a rubber-based adhesive homogeneously mixed powder, a solution adhesive of polystyrene or a solution adhesive of polyethylene. In the outer layer is made of steel steel wire mesh is arranged at a certain distance, the support steel wire arranged to cross between them in the longitudinal direction is integrated at the contact point while the core member for the steel structure of the steel structure having a structure in which the porous member is disposed in the center, In addition to the porous layer 2 having a cellular structure made of a polymer material and the elastic porous layer 3 having a cellular structure made of a polymer material, another porous layer 2-1 and an adhesive layer 1-1 are laminated in succession. Steel structural core material having a multilayer structure. The method of claim 5, Steel structure core material, characterized in that the porous layer (2) and the elastic porous layer (3) has a multilayer structure of three or more. The method according to claim 1 or 5, An iron foil structural core material, characterized in that the metal foil layer (13) is formed at the center of the vibration damping sound repellent adhesive layer. In the outer layer is made of steel steel wire mesh is arranged at a certain distance, the support steel wire arranged to cross between them in the longitudinal direction is integrated at the contact point while the core member for the steel structure of the steel structure having a structure in which the porous member is disposed in the center, Install the upper layer structure 5 on one side of the elastic porous layer (3) and install the inclined rebar member (4) to be alternately inserted and fixed so that the rebar member is inclined, but the exposed both ends of the inclined rebar member (4) are A steel frame core material, characterized in that the welding portion in contact with one of the reinforcing bar member (5) to be integrally welded, but only a part of the inclined rebar member (4) is inserted into the inside of the elastic porous layer (3). The method of claim 8, Steel structure core material, characterized in that the adhesive layer (1) having a function of vibration damping, sound insulation, insulation to the contact with the lower layer structure (6) to form a separate sheet metal sheet layer 14 on the upper surface.