WO2005042865A1

WO2005042865A1 - Plural direction deck plate.

Info

Publication number: WO2005042865A1
Application number: PCT/KR2003/002326
Authority: WO
Inventors: Jae Ho Lee
Original assignee: Nine Architech Co.,Ltd.
Priority date: 2003-11-01
Filing date: 2003-11-01
Publication date: 2005-05-12
Also published as: AU2003277688A1

Abstract

The present invention relates to a plural direction deck plate, and more specifically to a monolithic plural direction deck plate used in each floor of a building. The plural direction deck plate comprising: a base plank; a first lower tension-compression beam; a second lower tension-compression beam; a first upper tension-compression beam; a second upper tension-compression beam; and a plurality of joints. The plural direction deck plate has the effects that since it takes a plural direction truss structure that excels in stability, the deck plate can be supported even if the support placed under it is installed in whatever direction, so the support can be installed freely in any direction, and since there is no space in which sound is propagated, noise can be reduced and it can be installed in a building such as an apartment building, and since it is not necessary to connect distribution bars, the period necessary for constructing a building is shortened.

Description

PLURAL DIRECTION DECK PLATE

TECHNICAL FIELD The present invention relates to a plural direction deck plate, and more specifically to a monolithic plural direction deck plate used in each floor of a building.

BACKGROUND ART In general, when constructing floor slabs of a building, the slab structure is composed of reinforcing bars and concrete. Here, to place concrete, forms are indispensable for the floor. Originally, deck plates were of plywood and the wood form construction method by which on- site skilled laborers used to work was replaced by the bent steel plate form construction method, and this has been applied to construction.

sites. Fig. 1 shows such a conventional deck plate. As shown in Fig. 1, a conventional deck plate 1 has a plate shape in which the bent shapes are repeated. Normally, a bent part 2 whose cross section is of a trapezoid form is repeated. On the top surface of such a deck plate 1 is arranged reinforcing bars and placed concrete. But until concrete is completely hardened to be able to accommodate the force, the deck plate 1 has to withstand the

self weight of the concrete placed on the top surface before it is hardened. Therefore, under the bottom surface of the deck plate 1 , a support 3 needs to be placed for this. Such a support may have a shape of a beam or wall. However, as shown in Fig. 1 , the conventional deck plate had a problem that the support 3 is necessary only in the direction crossing the direction in which the bent part 2 is formed long. Namely, it had a problem that the conventional deck plate cannot be supported by the support alone installed in the direction parallel to the direction in which the bent part is formed long. Another problem is that since the conventional deck plate 1 cannot have a plural truss structure that excels in stability, it can be applied to a building that has an ordinary steel framed structure, but cannot be applied to a building such as an apartment building in which walls that function as the support cannot be installed at a given interval in some cases. That is, the walls of an apartment building have various shapes according to the size and structure of the room. Accordingly, the walls of an apartment building, etc. have the directions not constant crosswise or lengthwise, nor the walls exist continuously in one direction, and the walls are arranged and designed discontinuously in

many directions at various spans, so the conventional deck plate 1 had the problem that it cannot be applied to an apartment building. Moreover, the conventional deck plate 1 had yet another problem that sound, etc. are propagated in the space made by the bent part 2, so noise cannot be reduced. Furthermore, on the top of the conventional deck plate 1 is placed concrete after distribution bars are connected manually by on- site laborers, and much time is taken by the work of connecting the distribution bars, so it had a disadvantage that the period necessary for constructing a building took too long.

DISCLOSURE OF THE INVENTION The present invention was proposed to solve the problems as mentioned above, and it is an object to provide a plural direction deck plate, in which there is a plural direction truss structure that excels in stability so that the deck plate can be supported even if the support placed under it is installed in whatever direction, so the support can be installed freely in any direction, and since there is no space in which sound is propagated, noise can be reduced and it can be installed in a building such as an apartment building, and since it is not necessary to connect distribution bars, the period necessary for constructing a building is shortened. In accordance with an aspect of the present invention, there is provided a plural direction deck plate comprising: a base plank having a flat plate shape; a first lower tension-compression beam having a predetermined length, wherein the first lower tension-compression beam is located on the top surface of said base plank; a second lower tension-compression beam having a predetermined length, wherein the second lower tension-compression beam is located on the top surface of said base plank, and is combined crosswise with said first lower tension-compression beam; a first upper tension-compression beam having a predetermined length, wherein the first upper tension- compression beam is located over said first lower tension-compression beam, and is placed in a direction parallel to the first lower tension- compression beam; a second upper tension-compression beam having a predetermined length, wherein the second upper tension-compression beam is located over said second lower tension-compression beam, is placed in a direction parallel to the second lower tension-compression beam, and is combined crosswise with said first upper tension- compression beam; and a plurality of joints having one end of which is combined to the first lower tension-compression beam and the second lower tension-compression beam, and the other end of which is combined to the first upper tension-compression beam and the second upper tension-compression beam. In addition, the plural direction deck plate further comprises a spacer having a predetermined thickness, wherein the spacer is located on the top surface of said base plank to separate said base plank and said first lower tension-compression beam and second lower tension- compression beam, and is placed on said first lower tension- compression beam or second lower tension-compression beam. Further, the plural direction deck plate further comprises a connecting member having a =■ -shape on the whole, wherein the connecting member has a accommodating slot in order to connect each other said adjoining first upper tension-compression beams or second upper tension-compression beams, and a part of said first upper tension-compression beam or second upper tension-compression beam, and a part of another first upper tension-compression beam or second upper tension-compression beam that adjoins the first upper tension- compression beam or the second upper tension-compression beam are accommodated and fixed in the accommodating slots.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which :

Fig. 1 is a perspective view of a conventional deck plate; Fig. 2 is a perspective view of a plural direction deck plate according to an embodiment of the present invention; Fig. 3 and Fig. 4 are drawings showing how the first lower tension-compression beams and the second lower tension-compression beams are combined each other in the apparatus shown in Fig. 2; Fig. 5 and Fig. 6 are drawings showing how the first lower tension-compression beams, etc. in the apparatus shown in Fig. 2 are receiving tension and compression; Fig. 7 is a perspective view of the joint of the apparatus shown in Fig. 2; Fig. 8 is an exploded perspective view of the connecting member portion of the apparatus shown in Fig. 2; Fig. 9 is a perspective view of the joint portion according to another embodiment of the present invention; Fig. 10 is a sectional view of the spacer portion according to the

yet another embodiment of the present invention. <Description of Reference Numerals for Main Parts in the Drawings> 10: base plank; 20: first lower tension-compression beam; 30: second lower tension-compression beam; 40: first upper tension-compression beam; 50: second upper tension-compression beam; 60: joint; 70: spacer; 80: connecting member

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a plural direction plate deck according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. Figs. 2 to 8 are drawings showing a plural direction deck plate according to an embodiment of the present invention. In these drawings, Fig. 1 is a perspective view of a conventional deck plate, Fig. 2 is a perspective view of a plural direction deck plate according to an embodiment of the present invention, Fig. 3 and Fig. 4 are drawings showing how the first lower tension-compression beams and the second lower tension-compression beams are combined each other in the apparatus shown in Fig. 2, Fig. 5 and Fig. 6 are drawings showing how the first lower tension-compression beams, etc. in the apparatus shown in Fig. 2 are receiving tension and compression, Fig. 7 is a perspective view of the joint of the apparatus shown in Fig. 2, and Fig. 8 is an exploded perspective view of the connecting member portion of the apparatus shown in Fig. 2. As shown in Fig. 2 to 8, the plural direction deck plate 100 according to the embodiment of the present invention comprises a base plank 10, first lower tension-compression beams 20, second lower tension-compression beams 30, first upper tension-compression beams 40, second upper tension-compression beams 50, joints 60, spacers 70 and connecting members 80. The base plank 10 has a shape of a flat plate. The base plank 10 may be made of plastic or synthetic resin materials, but in the present

embodiment, it is made of galvanized steel sheet. The first lower tension-compression beam 20 is located on the top surface of the base plank 10 and has a predetermined length. The second lower tension-compression beam 30 is located on the top surface of the base plank 10 and has a predetermined length, and combined crosswise with the first tension-compression beam 20. As shown in Fig. 3, in the first lower tension-compression beam 20 are formed a plurality of first joint slots 22 that are formed downward, and in the second lower tension-compression beam 30 are formed second joint slots 32 that are formed upward. The first joint slots 22 are accommodated in the second joint slots

32 so that the first lower tension-compression beam 20 and the second lower compression beam 30 are combined mutually crosswise, and the combined portion is fixed firmly each other by welding, etc., as shown in

Fig. 4. Accordingly, the deficient cross sections by joint slots are reinforced by welding. Such combination is identical also in the first upper tension- compression beam 40 and the second upper tension-compression beam

50 that will be described later. The first upper tension-compression beam 40 is located over the first lower tension-compression beam 20, is placed in a direction parallel to the first lower tension-compression beam 20, and has a predetermined length. The second upper tension-compression beam 50 is located over the second lower tension-compression beam 30, is placed in a direction parallel to the second lower tension-compression beam 30, has a predetermined length, and is combined crosswise with the first upper tension-compression beam 60. Meanwhile, in the present embodiment, the first lower tension-

compression beam 20 and the second lower tension-compression beam 30 and the first upper tension-compression beam 40 and the second upper tension-compression beam 50 are made of materials having rigidity to withstand tension and compression. That is, as shown in Fig. 5, if the combination structure of the first lower tension-compression beam 20 and the first upper tension- compression beam 40 and the joint 60 has a bending created in the concave direction by acting load, tension is applied to portion C of Fig. 5 and compression is applied to portion D. In other words, the first lower tension-compression beam 20 is stretched and the first upper tension-compression beam 40 is compressed. Conversely, as shown in Fig. 6, if the combination structure of the first lower tension-compression beam 20 and the first upper tension- compression beam 40 and the joint 60 has a bending created in the convex direction by acting load, compression is applied to portion E of Fig. 6 and tension is applied to portion F. In other words, the first lower tension-compression beam 20 is compressed, and the first upper tension-compression beam 40 is stretched. It is the same with the combination structure of the second lower tension-compression beam 30 and the second upper tension- compression beam 50 and the joint 60. Accordingly, the first lower tension-compression beam 20 and the second lower tension-compression beam 30 and the first upper tension- compression beam 40 and the second upper tension-compression beam 50 are made of materials having rigidity to withstand tension and compression. As for the beams such as the first lower tension-compression beam 20 and the second lower tension-compression beam 30 and the first upper tension-compression beam 40 and the second upper tension-compression beam 50, high-strength plastic or high-strength

synthetic resin besides metal may be adopted. Also, as shown in Fig. 2, in the present embodiment, the first lower tension-compression beam 20 and the second lower tension- compression beam 30 and the first upper tension-compression beam 40 and the second upper tension-compression beam 50 have a rectangular cross-section shape, and the longer edge is stood vertically and placed over the base plank 10. One end of the joint 60 is combined to the first lower tension- compression beam 20 and the second lower tension-compression beam

30, and the other end to the first upper tension-compression beam 40 and the second upper tension-compression beam 50. In the joint 60 of the present embodiment, as shown in Fig. 7, are

formed respectively in the lower part and upper part lower cross slots 62 and upper cross slots 64, in which the first lower tension- compression beam 20 and the second lower tension-compression beam 30 are crossed in mutually crossing and corresponding directions. Accordingly, the lower cross slots 62 accommodates the crossing part of the first lower tension-compression beam 20 and the second lower tension-compression beam 30, and the upper cross slots 64 accommodates the crossing part of the first upper tension-compression beam 40 and the second upper tension-compression beam 50. That is, if viewed from the direction of arrow A of Fig. 2 in the present embodiment, the first lower tension-compression beams 20 and the first upper tension-compression beams 40 and the joints 60 take a rectangular truss structure to withstand the load of the plural deck

plate 100. Further, if viewed from the direction of arrow B of Fig. 2, the second lower tension-compression beams 30 and the second upper tension-compression beams 50 and the joints 60 take a rectangular

truss structure to withstand the load of the plural deck plate 100. The spacer 70 is to separate the base plank 10 from the first lower tension-compression beam 20 and the second lower tension- compression beam 30, and it is located on the top surface of the base plank 10, has a predetermined thickness, and is placed at the intersection of the first lower tension-compression beam 20 and the

second lower tension-compression beam 30. The spacer 70 has a thickness of 2 cm in the present embodiment. The base plank 10 and the spacer 70 and the first lower tension- compression beam 20 and the second lower tension-compression beam

30 and the joint 60 and the first upper tension-compression beam 40 and the second upper tension-compression beam 50 are combined each other firmly in a structure to withstand the applied load. The connecting member 80 is provided to connect each other the adjoining first lower tension-compression beams 20, and it has an accommodating slot 82 to have a -shape on the whole. And, on the

side of the connecting member 80 is provided through holes 81. That is, the connecting member 80 is used for combining plural direction deck plates 100 having a unit length, as shown in Fig. 2. And, as shown in Fig. 8, when the connecting member 80 connects the adjoining first lower tension-compression beams 20 each other, a part of the first lower tension-compression beam 20 and a part of another first lower tension-compression beam 20 adjoining the first lower tension-compression beam 20 are accommodated and fixed in the accommodating slot 82 of the connecting member 80. The fixing at this time is made by heat-treated high-tension bolt 84 and high-tension nut 85, and for this, at each end of each of the first lower tension-compression beams 20 is formed a bolt through hole 21 respectively. Combination by the connecting member 80 is applied likewise to the second lower tension-compression beams 30 and the first upper tension-compression beams 40 and the second upper tension- compression beams 50. The plural direction deck plate 100 according to the embodiment of the present invention having the structure as above is used in a building having steel frame construction as follows. First, form a steel frame structure of the building. That is, construct a steel structure by piling steel frames so as to match the number of floors of the building to be constructed. Subsequently, combine supports between the steel frames making each floor. At this time, combine supports sparsely in a number much smaller than when using the conventional plate 1. Also, the direction of combining the support is not restricted as in the case of installing the conventional deck plate 1. Namely, just fix the supports between the steel frames to fit the shapes of steel frames in such a way that it is convenient to install. Subsequently, move the plural direction deck plate 100 according to the present invention that has a predetermined size and is combined in advance to the floor on which it is to be installed using crane, etc. Such a plural direction deck plate 100 is prefabricated in factory, etc. Accordingly, manpower can be saved as it can be installed at the construction site using crane, etc., and the quality is ensured as it is fabricated rigorously in factory. Subsequently, rest the plural direction deck plate 100 that is moved to the floor on which it is to be installed on the steel frames and supports that make each floor. And, lay a number of the plural direction deck plates 100 that are made in a unit size on the floor of the structure to fit the plane shape of the structure, and make the adjoining plural direction deck plates 100 contact each other. That is, contact the plural direction deck plates 100 closely each other and rest them such that concrete does not leak down even it is placed on the plural direction deck plates 100. And, finish the corners, etc. of the structure with the plural direction deck plates that were prefabricated in the shape of the corner. Since the floor plan and dimensions of the structure are determined from the design stage of the structure, we can determine how many unit plural direction deck plates 100 are needed, and the shapes and dimensions of the base plank 100 of the plural direction deck plate 100 to finish the corners, so based on this, we can fabricate the plural direction deck plates 100 in advance. Also, the combination of plural direction deck plates 100, that is, the combination between the first lower tension-compression beam 10 and the adjoining first lower tension-compression beams 10 is made by the connecting member 80. The combination by the connecting member 80 is applied likewise also to between the second lower tension- compression beams 30 or the first upper tension-compression beams 40 or the second upper tension-compression beams 50. Subsequently, place concrete on the top surface of the plural direction deck plate 100. Concrete placed like this is placed to a desired height from the top surface of the base plank 10. Normally, concrete is placed to a thickness of 15 cm. And, concrete is placed and sinks uniformly in between the first lower tension-compression beams 20 and the second tension- compression beams 30 and the first upper tension-compression beams 40 and the second upper tension-compression beams 50. Subsequently, while you wait concrete to cure, the floor work of the desired floor will be completed. That is, because it is not necessary to arrange reinforcing bars before you place concrete on the desired floor, which is a conventional construction method, the construction

period is reduced remarkably. Also, unlike the conventional construction method, because it is

possible to combine plural direction deck plates 100 and place concrete on a plurality of floors, the construction period can be reduced much more remarkably. Also, as described above in detail, the supports can be fixed between steel frames in various directions to fit the structure of that steel frame, without the restriction that the direction of the supports fixed and combined between steel frames is to be made in a predetermined direction. Also, since concrete is placed between the base planks 10 and the first lower tension-compression beams 20 and the second lower tension-compression beams 30, a concrete layer is formed between the first lower tension-compression beam 20 and the base plank 10 to the height of the spacer 70. Therefore, even if fire broke out in the building, the melting of the first lower tension-compression beam 20 and the second lower tension- compression beam 30 by the heat is prevented. That is, because a concrete layer that withstands the temperatures much higher than the melting temperature of metal, etc., destruction by fire of the first lower tension-compression beam 20, etc. is prevented even if fire broke out. Meanwhile, in the present embodiment, we described that the joint 60 comprises lower cross slots 62 that accommodate the first lower tension-compression beam 20 and the second lower tension- compression beam 30 under it and upper cross slots 64 that accommodate the first upper tension-compression beam 40 and the second upper tension-compression beam 50 over it, but it is obvious that it is not limited to these. That is, Fig. 9 shows another joint 260 according to another embodiment of the present invention. The joint 260 according to another embodiment of the present invention has a predetermined length and is composed of the first member 262 having a bent surface and the second member 264 having the same shape as the first member 262. And, the first member 262 and the second member 264 are located so as to face each other, and at the lower ends of the first member 262 and the second member 264 are fixed the first lower tension-compression beam 20 and the second lower tension- compression beam 30 respectively by joining means such as welding, and at the upper ends of the first member 262 and the second member 264 are fixed the first upper tension-compression beam 40 and the second upper tension-compression beam 50 respectively be joining means such welding. Also by composing the joint 260 that is the same as another embodiment of the present invention, the same effect as the afore-

mentioned embodiment is created. Meanwhile, in Embodiment 1 of the present invention, the shape of the cross section of each of the first lower tension-compression beam 20 and the second lower tension-compression beam 30 and the first upper tension-compression beam 40 and the second upper tension- compression beam 50 was described as a rectangular shape, but it is obvious that it is not limited to this. It can have a shape of circular or square cross section. Meanwhile, in one embodiment of the present invention, the combinations of the first lower tension-compression beam 20 and the first upper tension-compression beam 40 and the joint 60 are described as having a rectangular truss structure, but it is obvious that it is not limited to this. That is, if the joint is combined in a direction inclined to the first lower tension-compression beam 20 and the first upper tension- compression beam 40, it can have a triangular truss structure as well. Even if it is made to have a triangular truss structure like this, it has the same effect as the embodiment of the present invention. Meanwhile, in the embodiment of the present invention, the spacer 70 is described to be located at the intersection of the first lower tension-compression beam 20 and the second lower tension- compression beam 30, but it is obvious that is not limited to this. Even if it is located not at the intersection but at the lower end of the first lower tension-compression beam 20 or the lower end of the second lower tension-compression beam 30, it has the same effect as one embodiment of the present invention. Meanwhile, the sectional view of the spacer 370 according to another embodiment of the present invention is shown in Fig. 10. In this embodiment of the present invention, only the combination of the spacer 370 is different from the afore-mentioned embodiment of the present invention and other components are the same, so detailed description is omitted and the same reference symbols are used. The spacer 370 according to another embodiment of the present invention is combined with the base plank 10 by screw 372. Namely, after concrete is placed and cures, the screw 372 is separated and the base plank 10 is collected to be re-used in another building. By doing this, it can be prevented that the base plank 10 corrodes to impair the building. Furthermore, the place where the spacer 370 was located can be used for installing the electric lights of a building or ceiling finishing materials.

INDUSTRIAL APPLICABILITY As we have seen above, the plural direction deck plate according to the present invention has the effects that since it takes a plural direction truss structure that excels in stability, the deck plate can be supported even if the support placed under it is installed in whatever direction, so the support can be installed freely in any direction, and since there is no space in which sound is propagated, noise can be reduced and it can be installed in a building such as an apartment building, and since it is not necessary to connect distribution bars, the period necessary for constructing a building is shortened. While the present invention has been described with

reference to exemplary embodiments thereof , it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the following claims.

Claims

WHAT IS CLAIMED IS

1. A plural direction deck plate comprising: a base plank having a flat plate shape; a first lower tension-compression beam having a predetermined length, wherein the first lower tension-compression beam is located on the top surface of said base plank; a second lower tension-compression beam having a predetermined length, wherein the second lower tension-compression beam is located on the top surface of said base plank, and is combined crosswise with said first lower tension-compression beam; a first upper tension-compression beam having a predetermined length, wherein the first upper tension-compression beam is located over said first lower tension-compression beam, and is placed in a direction parallel to the first lower tension-compression beam; a second upper tension-compression beam having a predetermined length, wherein the second upper tension-compression beam is located over said second lower tension-compression beam, is placed in a direction parallel to the second lower tension-compression

beam, and is combined crosswise with said first upper tension- compression beam; and a plurality of joints having one end of which is combined to the first lower tension-compression beam and the second lower tension- compression beam, and the other end of which is combined to the first upper tension-compression beam and the second upper tension- compression beam.

2. The plural direction deck plate of claim 1 further comprising: a spacer having a predetermined thickness, wherein the spacer is located on the top surface of said base plank to separate said base plank and said first lower tension-compression beam and second lower tension-compression beam, and is placed on said first lower tension- compression beam or second lower tension-compression beam.

3. The plural direction deck plate of claim 1, wherein said first lower tension-compression beam and second lower tension-compression beam and said first upper tension-compression beam and second upper tension-compression beam have a rectangular cross-section shape, and were placed over said base plank with the longer edge stood vertically.

4. The plural direction deck plate of claim 1, wherein said joint includes lower cross slots and upper cross slots in which said first lower tension-compression beam and second lower tension-compression beam are crossed in the mutually crossing direction and corresponding direction at the lower part and the upper part thereof, respectively, wherein the crossing part of said first lower tension-compression beam and second lower tension-compression beam is accommodated in said lower cross slots, and the crossing part of said upper tension- compression beam and second upper tension-compression beam is accommodated in the upper cross slots.

5. The plural direction deck plate of claim 1, wherein said joint has a predetermined length, and includes a first member having a bent surface and a second member having the same shape as the first member, wherein said first member and second member are faced each other, and at the lower ends of said first member and second member are fixed said first lower tension-compression beam and second lower tension-compression beam respectively, and at the upper ends of said first member and second member are fixed said first upper tension- compression beam and second upper tension-compression beam.

6. The plural direction deck plate of claim 1, wherein said joint is combined with said first tension-compression beam and first upper tension-compression beam in a vertical direction, and said first lower tension-compression beam and first upper tension-compression beam and the joints have a rectangular truss structure.

7. The plural direction deck plate of claim 1 , wherein said joint is combined with the first lower tension-compression beam and the first upper tension-compression beam in a direction inclined with respect to said first lower tension-compression beam and first upper tension- compression beam, and said lower tension-compression beam and first upper tension- compression beam and the joint have a triangular truss structure.

8. The plural direction deck plate of claim 1, further comprising: a connecting member having a τ= -shape on the whole, wherein the connecting member has a accommodating slot in order to connect each other said adjoining first upper tension-compression beams or second upper tension-compression beams, and a part of said first upper tension-compression beam or second upper tension-compression beam, and a part of another first upper tension-compression beam or second upper tension-compression beam that adjoins the first upper tension-compression beam or the second upper tension-compression beam are accommodated and fixed in the accommodating slots.

9. The plural direction deck plate of claim 1, wherein said spacer is screw-combined with said base plank by screw in order to make it possible to separate from and fasten to said base plank.