KR20190120103A - Connecting structure of unit bottom plate and contruction method thereof - Google Patents

Abstract

The present invention relates to a connecting structure of a unit bottom plate, which is a bottom structure connected by a unit bottom plate. The connecting structure of a unit bottom plate is simple for construction by connecting adjacent unit bottom plates to each other with a fixing bolt through a fixing hole of the unit bottom plate held on an upper portion thereof after installing a beam-shaped structure such as a steel beam or the like, lightens the unit bottom plate and improves performance because of integrally moving with the adjacent unit bottom plate when an external load is applied thereto, and improves space utilization and constructability by using a lightweight truss structure and a lightweight shape steel structure so as to form an opening for a vertical structure vertically penetrated into the connected unit bottom plate. The present invention also relates to a construction method using the same.

Description

Connecting structure of unit bottom plate and contruction method

The present invention relates to a unit bottom plate connection structure and a construction method using the same, and more specifically, to fix the unit bottom plate mounted on the upper part after installing a beam-like structure such as steel cheolgolbo as a floor structure connected to the unit bottom plate By connecting and fixing adjacent unit floor plates with holes through holes, not only the construction is simple, but also the unit floor plates are lightened and improved in performance when the external load is applied. In addition, to form an opening for the vertical structure penetrating vertically to the connected unit bottom plate by using a lightweight truss structure or a light-weight steel structure to improve space utilization and workability.

In general, the unit floor plate or the double-glazed plate has been used to cover the surface of the excavated surface so that vehicles or pedestrians can smoothly drive or walk on the road when digging roads or grounds for subway construction or underground facility construction.

In some sections of the ground building to be built, the equipment installed vertically is frequently changed.In these sections, steel beams, steel yoke lines and steel plates are installed vertically without installing permanent reinforced concrete slabs. When new equipment is installed or changed, steel temporary structures have been used to remove the steel structure of the section and arrange the device installed vertically.

The present invention is to apply a connection structure of the unit bottom plate that can be dismantled more safely and conveniently to the structure consisting of a temporary steel structure of the part without the slab.

The unit bottom plate or the perforated plate temporarily installed on the ground structure used up to now has a flat rectangular parallelepiped shape, and in order to install the unit bottom plate, H beams, which are usually steel beams, are installed at regular intervals and the H beams are installed. The unit bottom plate is installed flat on the upper flange surface of the unit, and the unit bottom plate installed on the H beam is fixed by welding or various fixing devices to withstand vertical loads or external impacts. For example, Korean Utility Model Publication No. 2018-0000626, which is a 'fixing device for a perforated plate' for fixing a perforated plate to an H beam, shows a part of a support between a fastening bracket formed by bending a plate and the bottom of the fastening bracket and the perforated plate. Including a fastening member for fixing the fastening bracket to the perforated plate to prevent the friction or vibration between the perforated plate and the support, as well as to prevent the occurrence of noise or abrasion, but the installation of the perforated plate is not easy and workability It falls and the exact fixation of the perforated plate is difficult.

In addition, the Republic of Korea Patent Publication No. 0818733 'Recovery construction concrete structure' is provided with a fitting bar on the side of the concrete body to form a perforated plate to reduce noise or increase durability when the vehicle passes and the fitting bar of the concrete body is formed Fitting grooves are provided on the opposite side, so that the process of manufacturing the fitting bars and the fitting grooves on the structure or the perforated plate to which they are connected to each other is difficult, thus increasing the manufacturing cost and reducing the compatibility of the perforated plate.

In addition, the Republic of Korea Patent Publication No. 1330177, 'pore plate using steel wire tension' is to reduce the noise and vibration generated from the vehicle by removing the gap generated between the two holes by connecting the tension material in the interior of the plurality of hole plates. It does not facilitate the engagement of the perforated plate.

Republic of Korea Utility Model Publication No. 20018-0000626 (released March 6, 2018) Registered Korean Patent Publication No. 0818733 (registered March 26, 2008) Registered Korean Patent Publication No. 1330177 (Registered Nov. 11, 2013)

This is made in view of the above-mentioned conventional problems, the purpose is to install a beam-like structure, such as cheolgolbo and in the mounting of the unit bottom plate on the top of the unit bottom plate and the unit bottom plate is connected to the unit floor It is easy to install by connecting and fixing adjacent unit bottom plate with fixing bolt through fixing hole of plate, but fixed unit bottom plate connected together even when external load is applied. In providing height.

In addition, instead of reinforced concrete slabs involving workers of various constructions in buildings such as steel structures, unit floor plates can be easily mounted on the beam-like structures such as steel beams with little manpower and connected to one another, thereby increasing the constructability. Is in.

In addition, when the unit floor plate is mounted in the duct space of a building, and the equipment installed vertically requires an opening requiring penetration of the unit floor plate, the light weight truss structure is simply dismantled after disassembling the installed unit floor plate. In addition, by forming an opening formed easily '손쉽게' using a light-weight steel structure to provide the ease and safety of construction due to the dismantling of the installed unit bottom plate.

The unit bottom plate connection structure of the present invention is mounted on two beam-shaped structures continuously installed horizontally, the upper portion is formed of a steel plate and the outer bottom portion of the steel plate is connected to two or more consecutive bottom of the unit bottom plate is installed a section steel forming a border In the plate connection structure, at least one fixing hole formed on one side of the unit bottom plate and a through hole formed in the lower section steel of the fixing hole, a nut hole formed in the other unit bottom plate facing the through hole, and the unit bottom plate and the unit bottom The plate is in close contact with each other is characterized in that the fixing bolt is coupled to the nut through the fixing hole to couple the unit bottom plate to each other.

In addition, the present invention forms a taper wider than the diameter of the fixing bolt as the inlet portion of the nut hole toward the outside, so that when the unit bottom plate and the unit bottom plate is connected, the central axis of the fixing hole side through-hole and the central axis of the nut hole exactly match If not, the fixing bolt is naturally coupled to the nut ball by the taper, but the unit bottom plate and the unit bottom plate are characterized in that the coupling is precise.

In addition, the present invention is the end of the fixing bolt is formed in a thread-shaped length (L) shorter than the length (L) of the through hole and the middle portion of the fixing bolt is formed straight to a diameter smaller than the thread and the head of the fixing bolt is square The inlet of the through hole is formed with a through hole so that the screw thread of the fixing bolt passes through the spiral, and the inner diameter of the through hole is formed larger than the thread diameter of the fixing bolt so that the screw of the fixing bolt passes through the through hole. While the middle part has a margin of up, down, left and right, it is easy to fasten to the nut hole with taper on the other unit bottom plate, but the fixing bolt is not easily released from the through hole by the through hole.

In addition, the present invention, when the unit bottom plate is continuously mounted on the beam-shaped structure, not only can the unit bottom plate be installed quickly and accurately in the beam-shaped structure, but also to prevent the sliding off the top of the structure of the beam-shaped structure A cover having a certain width 'c' shaped to wrap is installed, and the center of the cover is provided with a central fixing protrusion and an auxiliary to prevent horizontal movement of the steel while accommodating the steel forming a frame between the central fixing protrusion and the side of the cover. Characterized in that the projection is formed.

In addition, the present invention is a construction method using the unit bottom plate connecting structure as the bottom structure of the structure, the step of installing the beam-shaped structure, the step of installing the unit bottom plate on top of the beam-shaped structure, the unit bottom plate and the unit In the part where the bottom plate is in close contact with each other, the fixing bolt is inserted through the through hole formed in the lower portion of the fixing hole formed in at least one of the unit bottom plate, and then the fixing bolt is fastened with a nut hole formed in the other unit bottom plate facing the through hole. The bottom plate and the unit bottom plate is characterized in that the close contact.

In addition, the present invention is a unit of the portion in which the opening is formed for the installation of a plurality of split unit bottom plate for forming the opening for the vertical structure vertically penetrating the unit bottom plate is installed continuously on top of the beam-shaped structure Removing the fixing bolts coupled with the bottom plate, separating the other unit bottom plate from which the opening is not formed, and then disassembling the unit bottom plate of the portion where the opening is formed; Mounting a first support beam to install a plurality of split unit bottom plates on an upper portion of the beam-shaped structure having an opening; Fixing the pedestal or pedestal and the plate to the first support so as to mount the second support to the first support; Mounting a second support on an upper portion of the pedestal; Providing a plurality of split unit bottom plates in a portion where no opening is formed; The partition unit bottom plate and the other unit bottom plate are fastened by fixing bolts.

In the present invention, a beam-shaped structure, such as a cheolgolbo, is installed, and in the mounting of a narrow and long unit bottom plate on the upper part, the connection between the unit bottom plate and the unit bottom plate is fixed by the operator on the unit bottom plate. By fixing the adjacent unit bottom plate with holes through the hole, it is easy to install while increasing the work efficiency, and even when external load is applied, the fixed unit bottom plate behaves integrally. Lightweight has the effect of improving the economics and performance of the structure.

In addition, instead of the reinforced concrete slab accompanied by workers of various types of construction, it is possible to easily mount the unit bottom plate with little manpower on the beam-like structure such as steel beams and connect them integrally to maximize the air shortening, which is the biggest advantage of the steel structure. It is effective.

In addition, when mounting the unit bottom plate in the duct space of a building and vertical structures such as equipment installed vertically need openings requiring penetration through the unit bottom plate, the light weight truss is simply dismantled. By forming the openings easily formed by using a structure or a light-weight steel structure, there is an effect of increasing the ease and safety of construction due to the dismantling of the installed base plate.

1 is an exploded perspective view of a unit bottom plate of one embodiment of the present invention
Figure 2 is a front sectional view of the combined unit bottom plate of one embodiment of the present invention
Figure 3 (a), (b) is a rear perspective view of the split unit bottom plate of the present invention
4 to 9 is a cross-sectional view showing a state in which the fixing bolt is fastened to the nut hole for connecting the unit bottom plate and the unit bottom plate of the present invention.
Figure 10 is a perspective view of the partition unit bottom plate is installed to form an opening in the duct space installed between the structure and the structure in the present invention
FIG. 11 is a plan view of FIG. 10.
12 (a), (b) is the separation of the state in which the unit bottom plate and the split unit bottom plate is attached to the first support or the first support and the second support between the structure of the beam form in the present invention Perspective view
Figure 13 is an exploded perspective view in which a plurality of split unit bottom plates are installed on the first and second support beams mounted to form openings between the beam-shaped structures in the present invention;
Figure 14 is a cross-sectional view of the state in which the pad is attached between the end of the first support of the lower surface of the split unit bottom plate in the present invention;
Figure 15 (a), (b) is an elevation view in which the first support for installing the split unit bottom plate between the beam-shaped structure in the present invention is installed
16 is a cross-sectional view of a state in which a cover is formed with a protrusion formed in the upper center of the beam-shaped structure in the present invention
Figure 17 (a) is a cross-sectional view of the pedestal in which the second support is mounted in the first support is fixed in the present invention, Figure 17 (b) is a perspective view of the pedestal formed with a locking jaw in the present invention

In detail, the unit bottom plate 110 is installed and fixed to the upper surface of the beam-shaped structure 300 and the beam-shaped structure 300. Beam-shaped structure 300 is made of a steel frame, such as H beam, or reinforced concrete beam made of reinforced concrete, it is made of a variety of materials having the function of the beam, such as a composite beam filled with steel pipe concrete. The unit bottom plate 110 is mounted on and fixed to the beam-shaped structure 300, and thus, a detailed illustration of the unit bottom plate 110 is omitted since various methods are generally installed as described above. Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a unit bottom plate of an embodiment of the present invention, and FIG. 2 is a front cross-sectional view of the combined unit bottom plate of the embodiment of the present invention. In the present invention, the unit bottom plate 110 is fixed to be mounted between the beam-like structure 300, such as H beam (beam).

The unit bottom plate connecting structure 100 of the ground structure, which is a preferred embodiment of the present invention, is a steel plate 112 forming an upper portion of the unit bottom plate 110 that is continuously installed, and a section steel 111 forming an edge that is an outer circumferential portion of the lower plate. ), A fixing hole 120 formed at one side of the unit bottom plate 110, a through hole 142 formed in the lower section steel 111 of the fixing hole 120, and the other unit bottom plate facing the through hole 142. Fixing bolt 140 is coupled to the nut hole 130 formed in the 110, the nut hole 130 through the fixing hole 120 to couple the unit bottom plate 110 and the unit bottom plate 110 with each other. It consists of.

Since the fixing hole 120 is formed so that the upper steel plate 112 is opened, it is easy to insert the fixing bolt 140 to facilitate the operation.

The inlet of the nut hole 130 to form a taper 134 wider than the diameter of the fixing bolt 140 toward the outside so as to facilitate the coupling with the fixing bolt 140, fixing bolt 140 as described below ) When the screw is fastened to the nut hole 130, even if the central axis of the fixing bolt 140 and the central axis of the nut ball 130 do not exactly match, the fixing bolt 140 is tapered by the taper 134. The unit bottom plate 110 and the unit bottom plate 110 are precisely coupled while being screwed naturally approached to (130).

In order to reinforce the performance of the unit bottom plate 110, a reinforcing plate 113 made of an iron plate or a section steel in a shorter length direction among the upper steel plate 112 constituting the unit bottom plate 110 and the section steel 111 forming the lower rim. ) Is fixed by welding, the reinforcement plate 113 is installed at least one unit bottom plate 110 and the height of the reinforcement plate 113 is not higher than the height of the rim steel.

Although not specifically illustrated in the drawing as a whole, the steel plate 112 and the section steel 111 forming the unit bottom plate 110 are solidly integrated, and the section steel 111 is formed in the outer side of the steel plate 112 in order to facilitate construction by downward welding. Holes 114 are formed in the steel sheet 112 in the width of the inner side, and the shape steel 111 and the steel sheet 11 are welded downward through the holes 114 formed in this way, and the diameter of the holes 114 is Welding is possible and is formed about 5mm so as not to affect the stress of the unit bottom plate (110).

The unit bottom plate 110 is arranged up, down or left and right continuously and coupled through the fixing bolt 140, thereby simplifying the structure and excellent workability.

3 and 12, the height of the end 171 of the first support 172 when the split unit bottom plate 160 is installed on the first support 170 mounted on the beam-shaped structure 300. A pad 230 having a size equal to or higher than that of the pad 230 is attached to the rear surface of the split unit bottom plate 160, but the width of the end 171 of the first support 172 mounted on the structure 300 is excluded. The plate 160 is formed with a stepped groove 161, which is a space for accommodating the end 171 of the first support 172, and is thus divided into the first support 170 mounted to the beam-shaped structure. The unit bottom plate 160 can be easily installed. FIG. 3 (b) shows a circular pad 230 ′ attached to a corner portion of the split unit bottom plate 160, which is also a space for accommodating the end 171 of the first support 172. A circular pad 230 ′ is attached to the inner side of the split unit bottom plate 160 so that the pad 160 161 is formed. The pad may have various shapes such as a square in addition to the circular pad 230 ′. have. In addition, pads 230 are installed at both ends of the unit bottom plate 110 to have the same height as the division unit bottom plate 160.

4 to 9 is a cross-sectional view showing a state in which the fixing bolt is fastened to the nut hole in order to connect the unit bottom plate and the unit bottom plate in the present invention. It is fixed to the first fastening nut 131 or the second fastening nut 132 formed in the nut bottom 130 of the unit bottom plate 110 and the unit bottom plate 110 formed to form a rim of the square steel pipe It is a flat sectional view of the state in which the bolt 140 is fastened and fixed.

4 to 6 form through-holes 142 in a section steel made of a square steel pipe forming an edge on the outer circumferential surface of the unit bottom plate 110 to couple the unit bottom plate 110 and the unit bottom plate 110 to each other. At the inlet of the through hole 142, a through hole 141 having a diameter larger than the screw bone of the through bolt 140 and smaller than the thread of the through bolt 140 is installed so that the thread of the fixing bolt 140 passes through the spiral. .

The nut bottom 130 is formed at a position corresponding to the through hole in the other side unit bottom plate 110 facing the unit bottom plate 110, and the first fastening nut 131 in the nut hole 130. ) Is installed. The fixing bolt 140 is screwed from the inner side of the unit bottom plate 110 to the other side of the unit bottom plate 110 to fix the unit bottom plate 110 and the unit bottom plate 110 to each other. 140 passes through the through hole 141 in a spiral and is fastened to the first fastening nut 131 of the nut hole 130.

Here, the fixing bolt 140, the end is formed of a screw thread, the middle portion is formed with a diameter smaller than the screw thread while removing the thread, the start portion is formed with a square bolt head.

That is, as shown in FIG. 5, the end of the fixing bolt 140 has a thread shape and is formed with a length (L) shorter than the length L of the through hole 142, and the middle portion of the fixing bolt 140 has a smaller diameter than the screw thread. Straightly formed and the head of the fixing bolt 140 is formed in a square. The through-hole 141 forming the inlet of the through-hole 142 of the unit bottom plate 110 is formed through the thread of the fixing bolt 140 in the spiral and the inner diameter of the through-hole 142 is the fixing bolt 140 When the thread of the fixing bolt 140 passes through the through hole 141, the screw is formed larger than the diameter of the thread, and the fastening nut 131 of the other unit bottom plate 110 is provided while the middle portion of the fixing bolt 140 is left, right, top, bottom, left and right. Although the fixing bolt 140 is not easily deviated from the through hole 142 of the fixing hole side unit bottom plate 110 by the through hole 141, it can be easily fastened to the through hole 141. After assembling the fixing bolt 140, when assembling the unit bottom plate 110 and the unit bottom plate 110, which is the present construction, the fixing bolt 140 is already in the assembled state, and thus there is an advantage in that the construction can be performed more quickly. .

In addition, the unit bottom plate 110 and the unit bottom plate 110 are formed by forming a taper 134 wider than the diameter of the fixing bolt as the inlet portion of the nut hole 130 facing the other unit bottom plate 110 goes outward. When the central axis of the through hole 142 and the central axis of the nut hole 130 is not exactly matched when connecting the fixing bolt 140 is naturally coupled to the nut hole 130 by the taper 134 unit Even when the bottom plate 110 and the unit bottom plate 110 are not placed correctly, the unit bottom plate 110 and the unit bottom plate 110 can be accurately coupled by the taper 134 formed in the nut hole 130. In addition, there is an effect that can be faster and more accurate construction.

That is, when the thread of the fixing bolt 140 passes through the through hole 141 while the unit bottom plate 110 having the through hole 141 and the first fastening nut 131 are in close contact with each other as described above. Since the middle portion of the fixing bolt 140 is formed with a smaller diameter than the through-hole 141, the fixing bolt 140 is free to move up and down, left and right. In this state, the fixing bolt 140 is easily fastened to the first fastening nut 131 of the nut hole 130 formed on the unit bottom plate 110 on the other side by using the taper 134 of the nut hole 130. . In this process, the unit bottom plate 110 and the unit bottom plate 110 are easily fixed, thereby improving assembly performance and shortening the construction time. The thread of the fixing bolt 140 is inserted into the through hole 141. Since the fixing bolt 140 is already in the temporary assembly state in the construction site, while preventing the loss in transportation because it is not separated during transportation in the assembled state can be easily fastened to the nut ball 130 with the fixing bolt 140.

7 to 9 show that the fixing bolt 140 is fastened to the nut hole 130 having the second fastening nut 132 and the guide tube 133 in the present invention, through the unit bottom plate 110 The fixing bolt 140 passing through the hole 141 passes through the guide tube 133 of the nut hole 130 formed in the other unit bottom plate 110 to form a second fastening nut (1) integrally formed with the guide tube 133. 132 and is coupled to the unit bottom plate 110 to each other. The thread of the nut is formed in the second fastening nut 132 that is coupled to the outer side of the guide tube 133 without forming the thread of the nut hole 130 is fastened to the fixing bolt 140 is formed in the nut hole 130 The second fastening nut 132 of the ball 130 is fixed by welding to the outer surface of the section steel 111 made of a square steel pipe forming the edge of the unit bottom plate 110, the fixing bolt 140 and the nut ball The method of fastening the second fastening nut 132 of 130 is the same as the method described above.

FIG. 10 is a perspective view of a split unit bottom plate installed to form an opening in a duct space installed between the structure and the structure in the present invention, in which a unit bottom plate and a split unit bottom plate are installed to form a bottom plate in a duct space portion of a large structure; FIG. FIG. 11 is a plan view of FIG. 10, wherein the construction method using the unit bottom plate connecting structure 100 in forming the bottom plate in the duct space of the large structure is as follows.

As shown in FIG. 10, a beam-shaped structure 300 is installed between the structure 400 and the structure 400, and a unit bottom plate 110 and a split unit bottom plate 160 are installed on the beam-shaped structure 300. will be. The split unit bottom plate 160 is installed using a first support 170 or a first support 170 and a second support 242 as described below.

That is, an opening 180 for installing a vertical structure such as a device that vertically penetrates the unit bottom plate 110 continuously installed on the beam-shaped structure 300 is formed, and for this purpose, the division unit bottom plate 160 is formed. This is installed. In order to position the split unit bottom plate 160 installed between the unit bottom plate 110 and the unit bottom plate 110, the first support 170 is installed between the beam-shaped structures 300. The first support 170 includes a first support 172 made of a light truss structure or a light-shaped steel structure. The split unit bottom plate 160 is formed with a stepped groove 161 by a pad attached to the bottom of the split unit bottom plate 160, and for the coupling of the split unit bottom plate 160 and the unit bottom plate 1100. The fixing hole 120, the through hole 142, the nut hole 130, the fixing bolt 140 is provided in the same configuration as the unit bottom plate 110 and the coupling method is also described above and the unit bottom plate 110 Same as the joining method. Therefore, the split unit bottom plate 160 is smaller than the unit bottom plate 110, and the actual configuration is the same as that of the unit bottom plate 110, and can be broadly included in the unit bottom plate 110. .

As shown in FIGS. 11 and 12 (a), in order to install the split unit bottom plate 160 while forming the openings 180 in various sizes, first, the split unit bottom plate 160 in the direction of the beam-shaped structure 300 is provided. After leaving the distance as much as the width to be installed, the unit bottom plate 110 is disposed left and right, and then the stepped groove 161 formed on the bottom surface of the end of the split unit bottom plate 160 installed in the direction of the beam-shaped structure 300. Place the end 171 of the first support 172 in the place where it is located, install the split unit bottom plate 160 thereon, and then the unit bottom plate 110 and the split unit bottom plate with the fixing bolt 140 160 will be combined.

That is, the pad 230 is attached to the lower portion of the split unit bottom plate 160 installed on the beam-shaped structure 300 and the upper surface of the beam-shaped structure 300, and thus the split unit bottom plate 160 Since the stepped groove 161 is formed at both ends of the pad 230 to be attached to accommodate the end portion 171 of the first support 172, the division unit base plate 160 is horizontal to the first support 170. It can be seated while maintaining.

By attaching the pads 230 to the lower surfaces of the unit bottom plate 110 and the split unit bottom plate 160 as described above, the heights of the unit bottom plate 110 and the split unit bottom plate 160 can be uniformly matched. This effect is further improved.

12 (b) is a separate perspective view of the split unit bottom plate mounted on the first support member and the second support member, and the split unit bottom plate 160 is mounted on the first support member 172, respectively, and each split unit is mounted. The second support 242 is installed to support one end of the bottom plate 160, the second support 242 has a function to reinforce the supporting force for the split unit bottom plate 160.

Figure 13 is an exploded perspective view in which a plurality of split unit bottom plates are installed on the first and second support beams mounted to form openings between the beam-shaped structures in the present invention.

As the opening 180 is formed in the unit bottom plate 110 installed on the beam-shaped structure 300 and the upper surface of the beam-shaped structure 300, a plurality of split unit bottom plates 160 and 160 'are installed, The first support 170 and the second support 242 are installed in order to install the plurality of split unit bottom plates 160 and 160 'in the space of the unit bottom plate 110 removed by disassembly.

To this end, pads 230 corresponding to the height of the first support 172 are respectively attached to the lower end surfaces of the split unit bottom plate 160, and the pads 230 are attached to the split unit bottom plate 160. The length is formed by subtracting the width of the first support 172 from the total length of the split unit bottom plate 160 to be located between the first support 172 and the first support 172, the split unit bottom plate A pad 230 having the same length as the unit bottom plate 110 and a plurality of pads 230 formed in a circular or square shape are attached to the bottom surface of the other side of the unit bottom plate 110 adjacent to the 160. Let's do it. In addition, the second support 242 is installed in order to install two or more divided unit bottom plates 160 and 160 'with different sizes of the divided unit bottom plates 160.

14 is a cross-sectional view of a pad attached to a bottom surface of a split unit bottom plate.

In order to install the split unit bottom plate 160 on the beam-shaped structure 30 and the upper surface of the beam-shaped structure 30, the horizontal beam-shaped structure 300 and the beam-shaped structure 300 1 is mounted on the end 171 of the support 170 and the upper end of both ends 171 of the first support 170 using the stepped groove 161 of the split unit bottom plate 160, the split unit bottom plate 160 Install).

That is, pads 230 corresponding to the heights of the end portions 171 of the first support 172 constituting the first support 170 are formed on the bottom surfaces of the unit bottom plate 110 and the split unit bottom plate 160. Each of the pads 230 attached to the split unit bottom plate 160 seated on the upper end 171 is formed by subtracting the end 171 from the total length of the split unit bottom plate 160. To be positioned between the end portion 171 and the end portion 171, and the pad 230 having the same length as the unit bottom plate 110 is disposed on the bottom surface of the other side of the unit bottom plate 110 adjacent to the division unit bottom plate 160. Although not specifically shown in the drawings, a plurality of pads 230 ′ formed in a circle or a square are attached. In addition, although not specifically illustrated in the drawings, a plurality of pads 230 ′ formed in a circular or square shape may be attached to the unit bottom plate 110, and the height of the pads 230 is formed on the upper portion of the beam-shaped structure. The pad 230 ', which is equal to or slightly lower than, may be attached to alleviate the impact from the top.

15 (a), (b) is an elevation view in which the first support for supporting the split unit bottom plate between the beam-shaped structure in the present invention, Figure 15 (a) is mounted on the beam-shaped structure 300 The first support 170 is a structure made of lightweight truss steel, Figure 15 (b) is a structure made of lightweight steel, the lightweight steel structure is formed in the 'T' shape to correspond to the bending force applied to the center of the structure do. In addition, although not specifically illustrated in the drawings with respect to the second support 242, the second support 242 is also made of a lightweight truss structure or a light-weight steel structure as described above, while appropriately responding to the external force applied from the surrounding structure It is possible to construct safely and fast while improving economic efficiency by lightening the weight.

FIG. 16 is a cross-sectional view of a cover in which a protrusion is formed at an upper center of a beam-shaped structure. FIG.

When the unit bottom plate 110 is installed on the upper surface of the beam-shaped structure 300 and the other unit bottom plate 110 facing the upper surface of the beam-shaped structure 300 is installed, the unit bottom plate 110 should be installed exactly to the left and right of the central portion of the upper surface of the beam-shaped structure 300. To this end, the cover 250 is installed on the upper surface of the beam-shaped structure 300, and both sides of the cover 250 are bent downward to surround both ends of the upper surface of the beam-shaped structure 300. The cover 250 is seated without slipping from the beam-shaped structure 300, and is formed on both sides of the central fixing protrusion 251 by forming a central fixing protrusion 251 at the upper center of the cover 250. The unit bottom plate 110 is to be located accurately and easily.

That is, when the unit bottom plate 110 is mounted on both sides of the central fixing protrusion 251 in the state in which the cover 250 is installed on the beam-shaped structure 300, the unit bottom plate 110 is easily formed in the beam-shaped structure. Can be installed accurately and safely in the upper center of the 300.

In addition, between the central fixing protrusion 251 of the upper center of the cover 250 and the side end of the cover 250, the auxiliary protrusion 252 that can accommodate the shaped steel 111 formed in the edge of the unit bottom plate 110 It was formed to prevent the horizontal movement of the unit bottom plate 110. The inner width of the cover 250 surrounding the upper portion of the beam-shaped structure 300 to absorb the tolerance of the upper width of the beam-shaped structure 300 and the width of the beam 111 is the upper width of the beam-shaped structure 300. The width of the central fixing protrusion 251 and the auxiliary protrusion 252 is larger than that of the shape steel 111. Thus, the upper part of the cover 250 is formed by the central fixing protrusion 251 and the auxiliary protrusion 250 that can prevent the movement of the shape while receiving the steel 111 is formed quickly and accurately the unit floor plate 110 during construction Since the slip is prevented, there is an effect that the stability of the construction is increased.

FIG. 17 (a) is a cross-sectional view of the pedestal on which the second support is mounted is fixed to the first support, and FIG. 17 (b) is a perspective view of the pedestal in which the locking jaw is formed.

In order to install the second support support 242 between the first support support 170 and the first support support 170 mounted on the upper surface of the beam-shaped structure 300 ' In addition to fixing the a-shaped pedestal 240, the pedestal 240 is installed on the opposite side of the first support 170 is installed to more firmly secure the pedestal 240 to the first support (170) The plate 26 may be added and reinforced. When the second support 242 is mounted on the pedestal 240, the locking jaw 241 is protruded from both sides of the pedestal 240 to prevent the second support 242 from sliding off the pedestal 240. The second support 242 may be quickly and safely seated on the first support 170.

Therefore, in a state in which the second support 242 is seated on the pedestal 240 by using the locking jaw 241 of the upper part of the pedestal 240, the division unit having a different length on the upper portion of the second support 242. It is possible to install the bottom plate 160 ', the cross section of the second support 242 is formed in the' T 'shape to reinforce the rigidity so that the second support 242 of the divided unit bottom plate 160' In close contact with the bottom, it is possible to stably support the vertical load.

Next, the construction method using the unit bottom plate connection structure 100 as the floor structure of the structure, the step of installing the beam-shaped structure 300; Installing the unit bottom plate 110 to which the pads 230 described above are attached to the upper portion of the beam-shaped structure 300; The fixing bolt 140 is inserted into the through hole 142 through the fixing hole 120 formed in the unit bottom plate 110 at a portion where the unit bottom plate 110 and the unit bottom plate 110 are in close contact with each other. After that, the fixing bolt 140 is fastened to the nut hole 130 formed on the other unit bottom plate 110 to closely couple the unit bottom plate 110 and the unit bottom plate 110.

And in order to install a plurality of unit bottom plates in forming an opening for vertical structure installation that vertically penetrates to the unit bottom plate continuously installed on the upper portion of the beam-shaped structure, a portion in which the openings 180 are formed as above. After unfastening the fixing bolt 140 coupled with the unit bottom plate 110 of the other unit bottom plate 110 which is not formed in the opening 180 is formed after the unit bottom plate of the portion where the opening 180 is formed Dismantling 110; Mounting the first support (170) to install the split unit bottom plate 160 in the upper portion of the beam-shaped structure 300, the opening 180 is formed; Fixing the pedestal 240 or the pedestal 240 and the plate 260 to the first support 170 so as to mount the second support 242 on the first support 170; Mounting a second support (242) on the pedestal (240); Installing a split unit bottom plate (160, 160 ') on the first and second support (170, 242); The split unit bottom plates 260 and 260 'and the other unit bottom plate 110 are fastened by fastening with fixing bolts.

In the above, as the bottom structure of the structure, the dismantling of the unit bottom plate 110 or the unit bottom plate 110 and the division unit bottom plate 160 to form the opening 180 in the state in which the unit bottom plate 110 is already installed. , 160 '), but the opening 180 is formed in advance when the unit bottom plate 110 is installed, there is also a difference only in the disassembly order of the unit bottom plate 110, the configuration is applied to all the same Do.

As such, in forming the opening 180 for vertical structure installation vertically penetrating the unit bottom plate 110 installed above the beam-shaped structure 300, a single divided unit bottom plate 160 or a plurality of Not only can the split unit bottom plates 160 and 160 'be used, but a plurality of split unit bottom plates 160 and 160' is installed according to the installation size of the opening 180, and is mounted on the first support 170. The number or spacing of the second support 242 is also adjusted. The second support 242 can be quickly and safely mounted on the first support 170 by forming the latching jaws 241 on both sides of the upper part of the pedestal 240 fixed to the first support 170.

As described above, the present invention, although described by the limited embodiments and drawings, terms or words used in the present specification and claims are not limited to the ordinary or dictionary meanings and should not be interpreted, the technical spirit of the present invention It must be interpreted to mean meanings and concepts.

Therefore, the configuration shown in the embodiments and drawings described herein are only one embodiment of the present invention, and do not represent all of the technical spirit of the present invention, various changes within the scope of the claims of the present invention It should be understood that there may be equivalents and variations.

100: unit bottom plate connection structure 110: unit bottom plate
120: fixing hole 130: nut hole
131: first tightening nut 132: second tightening nut
133, 143: Guide 134: Taper
140: fixing bolt 141: through hole
142: through hole 160: split unit bottom plate
161: stepped groove
170: first support 171: end
172: first support 180: opening
230, 230 ': pad
240: pedestal 241: locking jaw
242: second support 250: cover
251: protrusion 252: auxiliary protrusion
300: beam-shaped structure 400: structure

Claims (19)

In the unit bottom plate connection structure, which is mounted on two beam-shaped structures arranged horizontally, the upper part is formed of a steel plate, and the lower part of the steel plate is connected to two or more unit bottom plates in which a section steel is formed to form an edge.
At least one fixing hole formed at one side of the unit bottom plate; A through hole formed in the lower steel of the fixing hole; A nut hole formed in the other unit bottom plate facing the through hole; Unit bottom plate connection structure, characterized in that the unit bottom plate and the unit bottom plate is in close contact with each other formed by a fixing bolt that is coupled to the nut hole through the fixing holes to couple the unit bottom plate to each other.
The method according to claim 1,
The section steel is a unit bottom plate connection structure, characterized in that consisting of a square steel pipe.

The method according to claim 1,
The fixing hole is a unit bottom plate connecting structure characterized in that the upper steel plate is formed to be open to facilitate the insertion of the fixing bolt.
The method according to claim 1,
As the inlet of the nut hole goes to the outside, the taper becomes wider than the diameter of the fixing bolt. The unit bottom plate connecting structure characterized in that the taper is naturally coupled to the nut hole by a taper.
The method according to claim 1,
The unit bottom plate connection structure, characterized in that the first fastening nut formed by a screw thread is formed on the inner side of the nut ball to be fastened to the fixing bolt.
The method according to claim 1,
The unit bottom plate connection structure, characterized in that the second fastening nut formed by a screw thread is formed on the outer side of the nut ball to be fastened to the fixing bolt.
The method according to claim 1 or 2,
The through-hole and nut hole through which the fixing bolt passes is formed as a guide tube, and the second fastening nut coupled to the fixing bolt is welded to the guide tube of the nut hole.
The method according to claim 1,
The end of the fixing bolt is a thread shape is formed of a length (ℓ) shorter than the length (L) of the through hole, the middle portion of the fixing bolt is formed straight to a diameter smaller than the thread and the head of the fixing bolt is formed in a square, The through hole is formed in the inlet of the through hole so that the screw thread of the fixing bolt passes through the spiral, and the inner diameter of the through hole is formed larger than the thread diameter of the fixing bolt. When the thread of the fixing bolt passes through the through hole, the middle part of the fixing bolt goes up and down. The unit bottom plate connection structure, characterized in that the fixing bolt is not easily released from the through hole by the through hole while being able to be easily fastened to a nut hole having a taper formed on the other unit bottom plate with a left and right margin.
The method according to claim 1,
A unit bottom plate connection structure, characterized in that a reinforcing plate made of an iron plate or a section steel is welded and fixed in a shorter length direction between the upper steel plate constituting the unit bottom plate and the section steel forming the lower rim.
The method according to claim 1,
A unit bottom plate connecting structure, characterized in that the steel plate and the steel plate is welded through a hole formed in the width of the steel section of the outer side of the steel plate in order to integrate the steel plate forming the unit bottom plate.
The method according to claim 1,
When the unit bottom plate is continuously mounted on the beam-shaped structure, a '-' shaped cover is installed to cover the upper portion of the beam-shaped structure to prevent the unit bottom plate from slipping off the beam-shaped structure. In the center of the cover, a central fixing protrusion is formed, and an auxiliary protrusion is formed between the central fixing protrusion and the side of the cover to prevent horizontal movement of the steel, and a tolerance of the upper width and the width of the beam structure is formed. An inner width of the cover covering the upper portion of the beam-shaped structure to absorb the width of the upper portion of the beam-shaped structure is larger than the width of the center fixing projections and auxiliary projections formed unit width plate width, characterized in that formed larger than the width of the section steel.
The method according to claim 1,
Pads forming stepped grooves for accommodating the first support while absorbing play in the joining surfaces of the beam-shaped structure and the unit bottom plate are continuously installed on the joining surface of the split unit bottom plate or at the corners of the split unit bottom plate. Unit bottom plate connection structure, characterized in that installed in the shape of a circle or square.
The method according to claim 1,
In order to form an opening for installing a vertical structure vertically penetrating the unit bottom plate that is continuously installed on the beam-shaped structure, the first support beam is mounted in the perpendicular direction of the beam-shaped structure in both directions of the opening, and the opening front and back direction And a second support beam mounted on the first support beam in a parallel direction of the beam-shaped structure, wherein the unit bottom plate and the split unit bottom plate are positioned at a portion where the opening is not formed.
The method according to claim 13,
When the first support is mounted on a beam-shaped structure, the thickness of the first support to be mounted is not greater than the thickness of the pad attached to the split unit bottom plate connecting structure.
The method according to claim 1,
In order to make the upper heights of the first support and the second support the same, the 'b' shaped pedestal and the plate are respectively fixed together on the opposite side in a direction perpendicular to the side of the first support, and the second support The unit bottom plate connection structure, characterized in that the locking jaw is formed on the top of the base so that the second support is not separated from the base when the beam is seated on the top of the base.
The method according to claim 13,
The unit support plate bottom structure, characterized in that the first support and the second support is formed of a lightweight truss structure or a light-shaped steel structure.
Construction method using the unit bottom plate connection structure as the floor structure of the structure,
(1) installing the beam-shaped structure;
(2) installing a unit bottom plate on top of the beam-shaped structure;
(3) A nut formed on the other side of the unit bottom plate facing the through hole after inserting the fixing bolt through the through hole formed in the lower part of the fixing hole formed in the unit bottom plate at least one of the unit bottom plate and the unit bottom plate in close contact with each other. Construction method using a unit bottom plate connecting structure characterized in that the fastening the fixing bolt by a ball to close the unit bottom plate and the unit bottom plate in close contact.
The method according to claim 17,
In order to install a plurality of split unit bottom plate to form an opening for vertical structure installation vertically penetrating the unit bottom plate that is continuously installed on top of the beam-shaped structure,
(1) disengaging the fixing bolt coupled with the unit bottom plate of the portion where the opening is formed, separating the unit bolt from the other unit bottom plate where the opening is not formed, and then disassembling the unit bottom plate of the opening portion;
(2) mounting a first support beam to install a split unit bottom plate on an upper portion of the beam-shaped structure in which the opening is formed;
(3) fixing the pedestal or pedestal and the plate to the first support to respectively mount the second support to the first support;
(4) mounting a second support on an upper portion of the pedestal;
(5) installing a split unit bottom plate on the first and second support parts;
(6) Construction method using a unit bottom plate connection structure characterized in that the fixing unit is tightly fixed by fastening the split unit bottom plate and the other unit bottom plate with a fixing bolt.
The method according to claim 18
Construction method using a unit bottom plate connection structure characterized in that the pedestal or or the pedestal and the plate is fixed to the first support before mounting the first support of the (2) to the beam-shaped structure.

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