WO2010013859A1

WO2010013859A1 - Steel plate structure

Info

Publication number: WO2010013859A1
Application number: PCT/KR2008/004830
Authority: WO
Inventors: Han-Woo Lee; Jong-Hak Kim; Won-Sang Sun; Geun-Ha Hwang; Kwang-Jae Lee; Dong-Su Park
Original assignee: Korea Hydro & Nuclear Power Co., Ltd; Korea Power Engineering Company, Inc.
Priority date: 2008-07-30
Filing date: 2008-08-20
Publication date: 2010-02-04
Also published as: KR101024262B1; KR20100013118A

Abstract

Disclosed is a steel plate structure that includes: a first surface plate and a second surface plate, which are separated from each other and each of which has one side facing each other; a strut, which maintains the separation distance between the first surface plate and the second surface plate; an H-shaped member, which is attached along a horizontal direction to one side of the first surface plate such that a flange of the H-shaped member faces one side of the first surface plate; and a mechanical anchoring device, which is attached to the other side of the first surface plate in correspondence with the H-shaped member and to which a steel bar is coupled. Since no holes, through which to the steel bars pass, are formed into the surface plate when attaching a beam or slab to a steel plate concrete wall, there are no losses in cross-sectional area, and structural integrity can be improved.

Description

[DESCRIPTION] [Invention Title] STEEL PLATE STRUCTURE

[Technical Field]

The present invention relates to a steel plate structure. More particularly, the present invention relates to a steel plate structure equipped with a steel bar anchoring mechanism for connecting a beam or slab to a steel plate concrete wall formed by casting concrete on the inside of steel plates.

[Background Art]

As structures become increasingly taller and larger, it is becoming more important to provide higher strength and improved workability.

For reinforced concrete structures, steel frame structures, steel framed reinforced concrete structures, etc., which have been in common use, the structure may be constructed by assembling formwork and steel bars or steel frames, etc., and casting the concrete directly at the construction site, so that the construction times may be increased and the quality may be made less reliable.

Receiving attention as an alternative to such structures is the steel plate concrete structure, which is made by filling concrete on the inside of steel plates to provide desirable properties of strength, load-bearing, strain characteristics, workability, etc.

The steel plate concrete wall is a wall made by filling in concrete between two steel plates and arranging studs, tie bars, etc., for keeping the concrete and the steel materials moving together, so that the steel plates and the concrete may move as an integrated body. In particular, the steel plate concrete wall can be utilized in the construction of large-scale structures such as nuclear power plants, etc., to shorten the construction time by using modularization.

When using a steel plate concrete wall, even if the load causes the inside concrete to reach its failure point, the steel plates may continue to restrict the concrete, so that a greater level of load-bearing may be provided. Also, as the concrete is placed on the inside of the steel plates, the concrete can be prevented from being deteriorated by the external environment, so that the durability of the structure may be improved.

To rigidly join a beam or a slab to a steel plate concrete wall, it may be necessary to anchor steel bars onto the steel plate concrete wall. The anchoring of steel bars may involve securing the end portions of the steel bars such that they are not pulled out from the concrete, in order that the steel bars may function as intended.

Figure 1 is a drawing illustrating an anchoring part for a steel plate concrete wall and a slab according to the related art. In the descriptions that follow, the steel composition made of steel plates, etc., before casting the concrete to form a steel plate concrete structure wall, will be referred to as a "steel plate structure."

Constructing a steel plate concrete wall using a steel plate structure according to the related art may involve vertically arranging steel plates 102 on both sides of the wall that is to be formed, connecting the two steel plates 102 by using struts 106, which are shaped like steel rods, for securing the steel plates 102, and then casting concrete in the space confined by the two steel plates 102, to form the wall. Here, numerous studs 104 may be installed on the inner surfaces of the steel plates 102, so that the steel plates 102 and the concrete may be adhered more easily.

Attaching a beam or a slab to a steel plate concrete wall may require anchoring steel bars 108. In anchoring a steel bar 108, a standard hook can be made at the end portion of the steel bar 108, so that the mechanical interaction of the hook and the adhesion at the linear portion may work in combination to anchor the steel bar 108.

In order to anchor a steel bar 108 that has a hook formed at the end onto a steel plate concrete wall, holes may be formed in a steel plate 102, through which the steel bar 108 can be inserted, and the hook may be inserted into the hole.

This method of using standard hooks for anchoring steel bars requires perforating holes in the steel plates, so that there are losses in the cross-sectional area of the steel plates. In addition, since the hooks have to be inserted through the holes, it may be difficult to arrange the steel bars after erecting the steel plates, and construction times may be increased. Furthermore, with the numerous hook-tipped steel bars arranged on the inside of the steel plates, it may be difficult to access the inside of the steel plates for installing piping, etc. in the wall.

[Disclosure]

[Technical Problem]

An aspect of the present invention is to provide a steel plate structure that allows steel bar anchoring without losses in the cross-sectional area of the steel plates and allows easy access to the inside of the wall's steel plates, when attaching a beam or a slab to a steel plate concrete wall.

[Technical Solution]

An aspect of the present invention provides a steel plate structure that includes: a first surface plate and a second surface plate, which may be separated from each other, and which may each have one side facing each other; a strut, which may maintain the distance between the first surface plate and the second surface plate; an H-shaped member, which may be attached along a horizontal direction to one side of the first surface plate such that a flange of the H-shaped member faces one side of the first surface plate; and a mechanical anchoring device, which may be attached to the other side of the first surface plate in correspondence with the H-shaped member, and to which a steel bar may be coupled.

The steel plate structure can further include a reinforcing plate, which may be interposed and attached between the other side of the first surface plate and the mechanical anchoring device. The first surface plate can include: a thick plate, to which the H-shaped member may be attached, and a steel plate, which may be attached above and below the thick plate, where the thick plate can be thicker than the steel plate.

The steel plate structure can further include a tie bar, which may connect the H-shaped member and the second surface plate. In this case, the tie bar can be an H-beam.

In addition, a structural member can also be included, which may be rigidly joined along a direction of gravity to one side of at least one of the first surface plate and the second surface plate. In this case, the tie bar can be connected with the

H-shaped member and with the structural member rigidly joined to one side of at least one of the first surface plate and the second surface plate.

The steel plate structure can include a pair of structural members, which may be coupled, facing each other, to one surface of the first surface plate and the second surface plate respectively. Here, the strut can be interposed and coupled between the pair of structural members. A number of holes can be formed in a web of the H-shaped member. Also, the steel plate structure may further include studs protruding from one side of the surface plate.

[Description of Drawings] Figure 1 is a drawing illustrating an anchoring part for a steel plate concrete wall and a slab according to the related art.

Figure 2 is a perspective view of a steel plate structure according to a first disclosed embodiment of the present invention.

Figure 3 is a side view of a steel plate structure according to the first disclosed embodiment of the present invention.

Figure 4 is a plan view of a steel plate structure according to the first disclosed embodiment of the present invention.

Figure 5 is a side view of a steel plate structure according to a second disclosed embodiment of the present invention. Figure 6 is a plan view of a steel plate structure according to the second disclosed embodiment of the present invention.

Figure 7 is a side view of a steel plate structure according to a third disclosed embodiment of the present invention.

Figure 8 is a plan view of a steel plate structure according to the third disclosed embodiment of the present invention. Figure 9 is a drawing illustrating a practical application of a steel plate structure according to the third disclosed embodiment of the present invention.

<Description of Numerals for Key Components in the Drawings> 12, 14 : surface plate 16 : strut

18, 32 : stud 20 : H-shaped member

22 : mechanical anchoring device 24 : tie bar

26 : slab plate 28 : shear plate

30 : steel bar

[Mode for Invention]

As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to particular modes of practice, and it is to be appreciated that all changes, equivalents, and substitutes that do not depart from the spirit and technical scope of the present invention are encompassed in the present invention, hi the description of the present invention, certain detailed descriptions of related art are omitted when it is deemed that they may unnecessarily obscure the essence of the present invention. While such terms as "first" and "second," etc., may be used to describe various components, such components must not be limited to the above terms. The above terms are used only to distinguish one component from another.

The terms used in the present specification are merely used to describe particular embodiments, and are not intended to limit the present invention. An expression used in the singular encompasses the expression of the plural, unless it has a clearly different meaning in the context. In the present specification, it is to be understood that the terms such as "including" or "having," etc., are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof disclosed in the specification, and are not intended to preclude the possibility that one or more other features, numbers, steps, actions, components, parts, or combinations thereof may exist or may be added.

The steel plate structure according to certain embodiments of the invention will be described below in more detail with reference to the accompanying drawings. Those components that are the same or are in correspondence are rendered the same reference numeral regardless of the figure number, and redundant descriptions are omitted.

Figure 2 is a perspective view of a steel plate structure according to a first disclosed embodiment of the present invention; Figure 3 is a side view of a steel plate structure according to the first disclosed embodiment of the present invention; and

Figure 4 is a plan view of a steel plate structure according to the first disclosed embodiment of the present invention. Illustrated in Figure 2 to Figure 4 are a first surface plate 12, a second surface plate 14, struts 16, studs 18, flanges 20a, webs 20b, H-shaped members 20, anchor plates 22a, link portions 22b, a mechanical anchoring device 22, and tie bars 24.

The present embodiment relates to a steel plate structure, to which steel bars may be anchored, for attaching a beam or slab to a steel plate concrete wall. The present embodiment may include as its major components: a first surface plate 12 and a second surface plate 14, which are separated from each other and each of which has one side facing each other; struts 16, which maintain a distance between the first surface plate 12 and second surface plate 14; H-shaped members 20 attached along a horizontal direction to one side of the first surface plate 12 such that the flanges 20a face one side of the first surface plate 12; and mechanical anchoring devices 22, which are attached to the other side of the first surface plate 12 in correspondence with the H-shaped members 20 and to which the steel bars may be anchored. When attaching a beam or slab to the steel plate concrete wall, there are no holes required to position the steel bars through the surface plate, so that there may be no losses in cross-sectional area, and structural integrity may be improved.

The first surface plate 12 and second surface plate 14 may be separated, each with one side facing each other, to define a particular space between the surface plates. This space is where the concrete is to be cast in later, and the distance between the surface plates can be determined in accordance with the load that will be applied on the steel plate concrete wall.

When the wall is formed, the surface plates 12 and 14 will be integrated with the concrete to withstand the load. Also, the surface plates 12 and 14 may restrict the concrete after the concrete reaches its failure point, to thereby increase the load-bearing capacity of the steel plate concrete wall.

The struts 16 may maintain a distance between the surface plates 12 and 14, so that the first surface plate 12 and second surface plate 14 may provide the space in between. A strut 16 can have both ends coupled to the first surface plate 12 and second surface plate 14, respectively, to maintain the separation distance. The struts 16 may maintain the distance between the surface plates 12 and 14 in consideration of the thickness of the wall, and may provide sufficient rigidity in consideration of operations for transporting the steel plate structure, etc. In the case of a wall for a large-scale structure, the large thickness of the wall may require a large distance between the two surface plates, and thus steel beams having high rigidity may be used for the struts 16.

Various types of structural materials, such as steel rods, L-beams, C-beams, H-beams, I-beams, T-beams, etc., can be used for the struts 16. This particular embodiment presents an example in which steel rod type struts 16 are used.

The H-shaped members 20 may be attached, along a horizontal direction, to one side of the first surface plate 12 with the flanges 20a facing the one side of the first surface plate 12.

In general, a steel bar bears a tensile or compressional force while embedded in concrete, and in order for the steel bar to fully utilize its capability, it is important that the end portion of the steel bar not be pulled out from the concrete. Securing the steel bar in this manner such that the end portion of the steel bar is not pulled out from the concrete is referred to as anchoring the steel bar. This anchorage of a steel bar is related to the embedment length of the end portion of the steel bar. hi particular, the embedment length of a steel bar that allows the steel bar to provide its full strength is referred to as the anchorage length. It is also possible to form a standard hook at the end portion of the steel bar, so that the mechanical interaction of the hook and the adhesion at the linear portion may work in combination to anchor the steel bar. However, the anchoring of steel bars by way of embedment length or by way of standard hooks may require holes formed in the surface plate, as the steel bars have to be embedded inside the wall's surface plate. Perforating holes in this manner entails losses in the cross-sectional area of the surface plate and lowers structural stability.

The anchoring of steel bars according to an aspect of the present invention may be achieved by attaching mechanical anchoring devices 22 to the other side of the first surface plate 12 and coupling the steel bars to the mechanical anchoring devices 22, but with the application of loads, the attachment portions of the mechanical anchoring devices 22 on the surface plate may be structurally vulnerable. Thus, the H-shaped members 20 may be attached such that the flanges 20a face one side of the first surface plate 12, and then the mechanical anchoring devices 22 may be attached to the other side of the first surface plate 12 at positions corresponding to the attachment portions of the H-shaped members 20, thereby to reinforce the attachment portions of the mechanical anchoring devices 22 on the surface plate.

When concrete is cast in the steel plate structure to form a wall, the H-shaped members 20 may be embedded in the concrete. Since the H-shaped member 20 has a large surface area and hence a large area of contact with the concrete, the load applied on the steel bar may readily be transferred to the concrete via the mechanical anchoring device 22, surface plate 12, and H-shaped member 20, and a sufficient anchoring force for the steel bar may be obtained.

A plurality of holes 20c can be formed in the web 20b of an H-shaped member

20, to prevent the occurrence of voids when casting the concrete. That is, when casting concrete in the steel plate structure, air may be trapped beneath the web 20b of the H-shaped member 20 to form voids. Forming multiple holes 20c in the web 20b can prevent the occurrence of voids beneath the web 20b.

The mechanical anchoring devices 22 may be attached to the other side of the first surface plate 12 in correspondence with the H-shaped members 20, and the steel bars of a beam or a slab may be coupled to the mechanical anchoring devices 22. That is, an H-shaped member 20 may be attached along a horizontal direction to one side of the first surface plate 12, and the mechanical anchoring devices 22 may be attached to the other side of the surface plate 12, opposite the H-shaped member 20, with the surface plate 12 in between.

The number of mechanical anchoring devices 22 may be determined according to the number of steel bars required for the beam or slab, and the mechanical anchoring devices 22 can be coupled in rows along the lengthwise direction of the H-shaped members 20. For example, the positive reinforcement or negative reinforcement for a slab may be installed in an upper or lower portion of the slab, where a multiple number of steel bars may be arranged in rows along the width of the slab. In such cases, the mechanical anchoring devices 22 may be coupled to the other side of the surface plate

12 in rows along the lengthwise direction of the H-shaped members 20, as illustrated in

Figure 4.

The mechanical anchoring device 22 is a device for mechanically anchoring a steel bar, and may be composed of an anchor plate 22a and a link portion 22b, to which the steel bar may be coupled. The anchor plate 22a may be welded onto the other side of the surface plate 12 or may be coupled by way of bolts. The link portion 22b is where the end portion of a steel bar may be coupled. The end portion of a steel bar may be welded or screw-joined to the link portion 22b.

Included also may be tie bars 24, which connect the H-shaped members 20 with the second surface plate 14. When a beam or slab is attached to a steel plate concrete wall, the attachment portions of the beam or slab may be structurally vulnerable. Thus, in order that the load applied on the steel bars may be better transferred to the second surface plate 14, tie bars 24 that connect the H-shaped members 20 with the second surface plate 14 may be provided. Several tie bars 24 can be installed in certain intervals along the lengthwise direction of the H-shaped members 20, so that the load transferred to the H-shaped members 20 may be transferred uniformly to the second surface plate 14. Using this structure, the steel bars, mechanical anchoring devices 22, first surface plate 12, H-shaped members 20, tie bars 24, and second surface plate 14 may be coupled together as an integrated body, so that external loads applied on the beam or slab may be transferred to the steel plate concrete wall in a stable manner.

Various types of structural material, such as steel rods, L-beams, C-beams, H-beams, I-beams, T-beams, etc., can be used for the tie bars 24. This particular embodiment presents an example in which H-beams are used for the tie bars 24. The steel plate structure according to the present embodiment can also include studs 18 that are coupled protruding from one side of each of the surface plates 12 and 14. The studs 18 may be embedded in the concrete and allow the surface plates 12 and 14 and the concrete to move together as an integrated body, so that the combined effect of the surface plates 12 and 14 and concrete may withstand external loads. The studs 18 may be arranged evenly over one side of the surface plate 12 in such a way that the concrete and the surface plates 12 and 14 are integrated over the entire area.

Reinforcing plates (not shown) may further be included between the other side of the first surface plate 12 and the mechanical anchoring devices 22. Stresses may be concentrated at the portions where the surface plate 12 and the mechanical anchoring devices 22 are attached, and may cause local damage in the surface plate 12. Thus, by adding the reinforcement plates between the surface plate 12 and the mechanical anchoring devices 22, local damage in the surface plate 12 can be avoided.

According to the size of the wall that is to be erected, the steel plate structure according to the present embodiment can be manufactured directly on site, or can be manufactured as unit modules in a factory and assembled on site to form the wall.

In other words, a steel plate structure according to the present embodiment can be used to form a wall by assembling the unit modules on site, and afterwards casting the concrete therein. After forming the wall, steel bars can be coupled to the steel plate structure according to the present embodiment, and a slab can be formed, thereby forming a wall-slab structure.

Figure 5 is a side view of a steel plate structure according to a second disclosed embodiment of the present invention, and Figure 6 is a plan view of a steel plate structure according to the second disclosed embodiment of the present invention. Illustrated in Figure 5 and Figure 6 are a first surface plate 12, a second surface plate 14, struts 16, studs 18, H-shaped members 20, mechanical anchoring devices 22, tie bars 24, and structural members 26.

A steel plate structure according to the present embodiment may include load-bearing structural members in addition to the surface plates and concrete, to effectively withstand axial or lateral forces applied on the steel plate concrete wall.

The structural members 26 may be rigidly joined along a direction of gravity to one side of at least one of the first surface plate 12 and the second surface plate 14. Together with the surface plates 12 and 14 and concrete, the structural members 26 may withstand the loads applied on the steel plate concrete wall. The structural members 26 can be arranged along a direction of gravity, to withstand axial forces, as well as lateral forces caused by earthquakes, wind, etc., applied on the steel plate concrete wall. That is, the structural members 26 may be coupled to one side of each surface plate 12 and 14 in a longitudinal direction of the steel plate concrete wall. Together with the concrete and the surface plates 12 and 14, the structural members 26 may withstand loads in the axial direction, as well as shear forces in the lateral direction caused by earthquakes, etc., when the steel plate concrete wall is rigidly joined to the foundation.

As the structural members 26 may serve as structural elements, in addition to the surface plates 12 and 14 and the concrete, the overall thickness of the steel plate concrete wall can be reduced, to be useful in forming a wall in a large-scale structure, and the thickness of the surface plates 12 and 14 can be reduced, to reduce the amount of thermal deformations during welding operations.

Furthermore, the structural members 26 can prevent deformations in the steel plate structure due to eccentricity or twisting while transporting the steel plate structure after manufacture at the factory, and can also prevent deformations in the steel plate structure due to the lateral pressure applied by uncured concrete while casting the concrete in the steel plate structure.

Methods of rigidly joining the surface plates 12 and 14 and the structural members 26 can include joining the surface plates 12 and 14 with the structural members 26 using high-tension bolts or rivets, and welding the structural members 26 to the surface plates 12 and 14, so that the structural members 26 may move as an integrated body with the surface plates 12 and 14.

Various types of structural material, such as L-beams, H-beams, I-beams,

T-beams, etc., can be used for the structural members 26. This particular embodiment presents an example in which H-beams are used for the structural members 26 with the flanges of the H-beams rigidly joined to one side of each of the surface plates 12 and 14.

It is possible to rigidly join the structural members 26 to just one of the first surface plate 12 and second surface plate 14, or to both the first surface plate 12 and second surface plate 14. A suitable number of structural members 26 can be coupled to one side of the surface plates 12 and 14 in accordance with the load applied on the steel plate concrete wall.

When rigidly joining the structural members 26 to both surface plates 12 and 14, the structural members 26 can be arranged facing each other, as illustrated in Figure 5 and Figure 6. In such cases, the end portions of the H-shaped members 20 can be coupled to the structural members 26 rigidly joined to the first surface plate 12, and the tie bars 24 coupled to the H-shaped members 20 can be coupled to the structural members 26 rigidly joined to the second surface plate 14. Also, the struts 16, which maintain the distance between the first surface plate 12 and the second surface plate 14, can be interposed and coupled between pairs of opposing structural members 26. The surface plates 12 and 14, H-shaped members 20, structural members 26, and tie bars 24 may be connected together and integrated, to efficiently bear the load transferred from the steel bars.

The combined effect of the surface plates 12 and 14, concrete, and structural members 26 can increase load-bearing strength, so that a thick wall, for skyscrapers, power plants, etc., can be formed without increasing the thickness of the surface plates. Thus, since the load-bearing strength can be increased without increasing the thickness of the surface plates, the minimized thicknesses for the surface plates allow easy manufacture and installation of the steel plate structure, and in cases where the steel plate structure is modularized and assembled on site, the module sizes may be increased. The other components of the present embodiment are substantially the same as those described above, and thus will not be described again.

Figure 7 is a side view of a steel plate structure according to a third disclosed embodiment of the present invention, and Figure 8 is a plan view of a steel plate structure according to the third disclosed embodiment of the present invention. Illustrated in Figure 7 and Figure 8 are thick plates 12a and 14a, steel plates 12b and 14b, a first surface plate 12, a second surface plate 14, struts 16, studs 18, H-shaped members 20, mechanical anchoring devices 22, and tie bars 24.

When a load is applied on a beam or slab attached to a steel plate concrete wall, the tensile forces are borne by the steel bars, and the tensile forces are transferred to the steel plate concrete wall by the mechanical anchoring devices 22, which anchor the steel bars. Therefore, stresses may be concentrated at the attachment portions between the surface plate 12 and the mechanical anchoring devices 22, and may locally damage the surface plate 12. The present embodiment has the thickness of the surface plate 12 increased in portions where the mechanical anchoring devices 22 are attached, so that such local damage may be avoided.

In the present embodiment, the first surface plate 12 includes thick plates 12a, to which the H-shaped members 20 may be attached, and steel plates 12b attached above and below the thick plates 12a, where the thick plates 12a have a thickness that is greater than that of the steel plates 12b.

The thick plates 12a and steel plates 12b can be attached by welding to form one surface plate 12.

An H-shaped member 20 may be attached to one side of a thick plate 12a along a horizontal direction, while a mechanical anchoring device 22 may be attached to the other side of the thick plate 12a.

Similar to the first surface plate 12, the second surface plate 14 can also be composed of thick plates 14a and steel plates 14b attached above and below the thick plates 14a, as illustrated in Figure 7. The tie bars 24 that connect the H-shaped members 20 and the second surface plate 14 can be connected with the thick plates 12a of the second surface plate 14.

The other components of the present embodiment are substantially the same as those described above, and thus will not be described again.

Figure 9 is a drawing illustrating a practical application of a steel plate structure according to the third disclosed embodiment of the present invention. Illustrated in Figure 9 are thick plates 12a, steel plates 12b, a first surface plate 12, a second surface plate 14, struts 16, studs 18, H-shaped members 20, mechanical anchoring devices 22, tie bars 24, a slab plate 26, a shear plate 28, steel bars 30, and studs 32. Looking at a method of forming a steel plate concrete wall-slab structure using a steel plate structure according to the present embodiment, with reference to Figure 9, a slab plate 26 for forming a slab may be attached to the plate structure according to the present embodiment. Formed on the upper surface of the slab plate 26 can be studs 32 for integrated movement with the concrete. During use, the attachment portion between the steel plate structure and the slab plate 26 are vulnerable to shear, therefore a shear plate 28 can be positioned at the attachment portion between the steel plate structure and slab plate 26. This slab plate 26 may serve as formword when casting the concrete, and as a structural element for withstanding external loads together with the steel bars 30 after the concrete is cured. Next, the steel bars 30 for the slab may be coupled to the mechanical anchoring devices 22 of the steel plate structure. When the attaching of the steel plate structure, slab plate 26, and steel bars 30 is complete, concrete may be cast and cured inside the steel plate structure and over the slab plate 26.

While the present embodiment has been presented using an example in which a slab is attached to a steel plate concrete wall, it is also possible to form a steel plate concrete wall-beam structure by using a steel plate structure equipped with mechanical anchoring devices for attaching beams.

While the present invention has been described with reference to particular embodiments, it is to be appreciated that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention, as defined by the appended claims below.

[Industrial Applicability]

Since there are no holes, through which the steel bars pass, formed into the surface plate when attaching a beam or slab to a steel plate concrete wall, there are no losses in cross-sectional area, and structural integrity can be improved.

Also, the time for anchoring the steel bars on site can be reduced, and due to the easy access to the inside of the surface plates, the installation of piping, wiring, etc., inside the surface plates can be facilitated.

Claims

[CLAIMS] [Claim 1 ]

A steel plate structure comprising: a first surface plate and a second surface plate, one side of the first surface plate and one side of the second surface plate being separated from each other and facing each other; a strut maintaining a separation distance between the first surface plate and the second surface plate; an H-shaped member attached along a horizontal direction to one side of the first surface plate such that a flange of the H-shaped member faces one side of the first surface plate; and a mechanical anchoring device attached to the other side of the first surface plate in correspondence with the H-shaped member, the mechanical anchoring device having a steel bar coupled thereto.

[Claim 2]

The steel plate structure according to claim 1 , further comprising a reinforcing plate interposed and attached between the other side of the first surface plate and the mechanical anchoring device.

[Claim 3]

The steel plate structure according to any one of claim 1 and claim 2, wherein the first surface plate comprises: a thick plate having the H-shaped member attached thereto; and a steel plate attached above and below the thick plate, wherein the thick plate is thicker than the steel plate.

[Claim 4]

The steel plate structure according to any one of claim 1 through claim 3, further comprising a tie bar connected to the H-shaped member and the second surface plate.

[Claim 5]

The steel plate structure according to claim 4, wherein the tie bar is an H-beam.

[Claim 6]

The steel plate structure according to any one of claim 1 through claim 5, further comprising a structural member rigidly joined along a direction of gravity to one side of at least one of the first surface plate and the second surface plate.

[Claim 7]

The steel plate structure according to claim 6, wherein the tie bar is connected with the H-shaped member and with the structural member rigidly joined to one side of at least one of the first surface plate and the second surface plate.

[Claim 8]

The steel plate structure according to any one of claim 6 and claim 7, wherein: the structural member is formed as a pair of structural members, each structural member of the pair of the structural members being coupled to one surface of the first surface plate and one surface of the second surface plate, respectively, and facing each other; and the strut is interposed and coupled between the pair of structural members.

[Claim 9] The steel plate structure according to any one of claim 1 through claim 8, wherein a plurality of holes are formed in a web of the H-shaped member.

[Claim 10]

The steel plate structure according to any one of claim 1 through claim 9, further comprising a stud being protruded from and coupled to one side of the surface plate.