KR200418842Y1 - Fixing structure between jointing portion of deep-decks - Google Patents

Abstract

The present invention relates to a fixed structure between the connection portion of the deep deck, the side end of the two sides by using a fixing mechanism including a fixed hook bolt and nut member, hook plate in the state of overlapping some of the side connection portion of the two adjacent deep deck By fixing the connection part, it is possible to solve the problem of dropout and the problems caused by the side-end connection and the spot welding method when placing concrete, and to improve the joining reliability of the connection as well as provide advantageous advantages in terms of workability. It relates to a fixed structure between the connection of the deep deck.

Deep Deck, Connection, Fixing Structure, Fixture, Fixing Hook Bolt, Hook Plate, Nut Member

Description

Fixing structure between jointing portion of deep-decks}

1 is a perspective view showing a conventional deep deck structure,

2 is a cross-sectional view of the dip deck shown in FIG.

3a and 3b is a cross-sectional view of the construction state using a conventional dip deck,

4 is a cross-sectional view taken along the line 'D-D' of FIG. 3A to show a state in which concrete construction is completed;

5 is a cross-sectional view of the construction state using a dip deck to which the present invention is applied,

Figure 6 is an enlarged cross-sectional view showing a first embodiment of the fixing structure between the connection portion of the deep deck according to the present invention,

7 is an assembled perspective view of the fixed hook bolt, the nut member and the rubber packing, the hook plate in the first embodiment shown in FIG.

8 is a cross-sectional view showing a second embodiment of the fixing structure between the connection portion of the deep deck according to the present invention,

9 is an assembled perspective view of the fixed hook bolt, the nut member and the rubber packing, the hook plate in the second embodiment shown in FIG.

 10 is a cross-sectional view showing a third embodiment of the fixing structure between the connection portion of the deep deck according to the present invention,

11 is a cross-sectional view taken along the line 'C-C' in FIG. 10,

12 is a cross-sectional view showing a fourth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention,

FIG. 13 is a configuration diagram of a fixing mechanism used in the fourth embodiment of FIG. 12;

14 is a cross-sectional view showing a fifth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention,

15 is a cross-sectional view showing a sixth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10, 20: deep deck 30: fixture

31: fixed hook bolt 32: hook plate

33: nut member 34: rubber packing

The present invention relates to a fixed structure between the connection portion of the deep deck, and more specifically, using a fixing mechanism comprising a fixed hook bolt and nut member, hook plate in a state in which a part of the side end connection portion of two neighboring deep decks overlap each other Thus, by fixing the side end connection on both sides, it is possible to eliminate the problem of the side end connection and the problems caused by the spot welding method when placing concrete, and the connection reliability of the connection can be improved as well as advantageous in terms of workability. It relates to a fastening structure between deep deck connections that can provide advantages.

In general, there are two ways to build underground structures.

After constructing the earthquake on the ground where the underground structure is constructed, install the temporary facility to support the earthquake while excavating the ground, take out all the earth and sand, and build the structure from the bottom floor, After the construction of the first-floor structure, using the structure as a retaining member for the earthquake, the reverse casting method is to construct the structure while drilling the ground from the top to the bottom.

In recent years, underground construction has been increasingly intensified in order to maximize land use. In particular, when the construction is carried out by the net pouring method, not only the construction of cracks due to the risk of earthquake collapse or the settlement of nearby buildings, but also visually unstable construction Due to various problems such as long periods of time, the reverse casting method has been widely applied in recent years.

In this reverse casting method, after constructing the retaining wall and the frame for the underground frame, the underground structures such as slabs and beams are constructed step by step from the ground floor to the underground floor. It can proceed at the same time, the floor of the ground floor can be utilized as a workshop, there is no need for a separate perforated plate, there is an advantage that the work can be plain.

Such a reverse casting method involves placing concrete slabs and beams on the ground while the ground is stopped (concrete on grade), and excaving the ground to some extent, selecting the ground, and then placing the clubs and installing the formwork to place the concrete. (Form on Supporting) and the method of placing concrete by suspending the formwork on the concrete slab on the upper floor instead of erecting a group for supporting the formwork (inverted reversal suspension formwork).

Among them, the method of using copper barley is a method applied to strata with relatively high relative density. After digging the ground, the discarded concrete is placed on the excavated ground, and the discarded concrete is used as the support base. After installing the concrete, the concrete of the beam and slab is poured.

Here, beam formwork and slab formwork are supported by clubs on discarded concrete on the excavation ground.

However, when the copper barrier is used, support on the soft ground is unstable and dismantlement is impossible unless the concrete strength is maintained above a certain limit.

In addition, the temporary materials such as formwork, dongbari, etc. should be taken out of the Gulto workshop and moved back to the lower floor after reconstruction, and this should be repeated for each floor construction. do.

In addition, after the concrete is poured, it is necessary to wait until the structure develops the steelmaking strength after sufficient curing period. Therefore, waiting time is inevitably generated, and the cost and time required for transporting and reassembling the copper bar or formwork are excessive. In addition to being economical, all work depends on manpower, which is labor intensive, which leads to problems such as difficulty in cost reduction in a situation in which labor force shortages intensify.

In order to reduce the use of clubs having these problems, the deck plate (Deck Plate) has recently been developed that has the advantage of unsupported construction has been increasingly used.

In the construction method using the deck plate, in the state in which the construction wall and the frame pillars in the inner ground are constructed, the beam formwork is supported to the lower side along the beam to be constructed with the clubs on the discarded concrete, and between the formwork and the formwork Deck plates are supported and installed at the same time, then concrete is cast on the beam formwork and deck plate to complete the slab (deck slab) and beam.

In this case, since the reverse casting method is used, first, the concrete is installed on the beam formwork and the deck plate, and the upper slab and the beam are pre-installed. By pouring, the lower slabs and beams will be constructed.

In this way, the beam formwork and deck plate installation, slab and concrete placement of the slab are repeated in the construction process of each floor, and the underground structure is constructed step by step toward the basement floor.

On the other hand, in order to solve the problem of using the group, as a non-supporting formwork system (Top Non Construction) to build from the ground floor from the ground floor to the lowest floor when building the underground structure, Instead of the installation, the unsupported reversal suspension formwork was proposed to suspend the formwork on the pre-installed upper concrete slab.

This unsupported reversal suspension formwork is a method of constructing a lower slab by using the formwork while suspending the formwork using a suspension material on the upper slab.

In order to build underground structures of each floor using this method, concrete is laid on the formwork to construct the upper slab, and the formwork used in the construction of the upper slab is lowered by using a hydraulic lift on the upper slab. The construction of the lower slab using the lowered formwork is repeated for each floor.

This suspension method is more advantageous in securing the workplace and ensuring the safety of the worker because it is installed by hanging the formwork on the upper slab without installing the copper bar at the bottom of the slab formwork and the beam formwork. It is possible to proceed continuously, it is possible to obtain excellent concrete quality by securing a sufficient curing period, and at the same time has the advantage that it is possible to shorten the air and reduce the cost.

In particular, when the suspension method is applied, it is possible to simultaneously perform the three-stage process of underground frame construction, which continuously runs down the formwork suspended from the upper slab, the excavation work from the bottom, and the ground structure construction.

On the other hand, as a composite deck plate for the construction of underground structures, in the construction of steel frame and steel reinforced concrete, can be installed on the upper flange of the cheolgolbo, as well as lowered the floor height of the building by being spread across the lower flange of the cheolgolbo A new type of deep dance composite deck plate capable of constructing a long span without a temporary support is disclosed in Utility Model Registration No. 283634 (2002.7.16).

The composite deck plate as described above is commercialized and provided under the name of J.F-Deck (Deep-Deck, hereinafter referred to as 'Deep Deck'), and has a deep dance, in addition to the advantage of lowering the floor of the building. Therefore, the rib dance is larger than the thickness of the slab to provide excellent cross-sectional performance. Therefore, the resistance to deflection is large, so the construction of long spans is possible without temporary support. There is an advantage that can be saved.

In addition, it contributes to the stabilization of the entire building while providing an effective work space during construction, and serves as a concrete formwork when placing the site, and also provides an excellent self-weight reduction effect compared to the concrete flat slab.

Hereinafter, the deep deck will be described in more detail.

1 is a perspective view showing a conventional deep deck structure, Figure 2 is a cross-sectional view of the dip deck shown in Figure 1, Figures 3a and 3b is a cross-sectional view of the construction state using a conventional dip deck, Figure 4 It is a cross-sectional view taken along the line 'D-D' of Figure 3b shows a state in which the concrete construction is completed.

As shown in Figures 1 and 2, the deep deck 5 is a slab formwork structure that is deeper dance than the general deck plate, and is produced by bending a thin hot dip galvanized steel sheet, and when pouring concrete It is a kind of deck plate that can reduce the amount of rebar by acting as a formwork and acting as a composite deck (which acts as some reinforcing bar) after curing concrete.

In order to install such a deep deck, as shown in FIGS. 3A and 3B, in the state in which a frame pillar 1 such as a CFT column or an H-beam column is constructed, the copper bar 7 and the frame pillar 1 are provided. First, the beam formwork 4 is installed using the support bracket 2 fixedly installed on the support form 2, and then the dip deck 5 is installed in such a manner as to support both ends on the formwork 4.

In FIG. 3A, the deep deck 5 is installed after the frame 4 is installed on the frame pillar 1 using the copper wheel 7, and FIG. 3B is installed on the frame pillar 1. After installing the formwork 4 using the support bracket (2) shows a state in which the deep deck (5) is installed, respectively.

In FIG. 3b, reference numeral 3 denotes a support girder which is supported by being installed on the support brackets 2 of the two frame pillars 1 adjacent to each other, which is a temporary member supporting the formwork 4 during construction. do.

The deep deck 5 is installed with both ends mounted on the side horn 4a of the beam formwork 4, and an end closer 5a is installed on the copper side of the deep deck 5 to finish. 5a) prevents the concrete from leaking down by blocking a gap between the side ridges 4a and the deep deck 5 generated between the ribs of the deep deck 5 at the time of concrete pouring.

Here, nail 6 is fixed between the deep deck 5 and the side horn 4a, and as shown in FIG. 4, a tack weld is formed between the joints of two neighboring deep decks 5. To fix them together.

In other words, a part of the bent side connection parts A and B is overlapped and welded between neighboring deep decks 5 to be fixed to each other.

At this time, in the side connection portion (A, B) of the two neighboring deep deck 5, the overlapping portions (5b, 5c) on both sides, bend appropriately formed in order to prevent the mutual separation (separation, dropping) during the concrete placing Thus, the end bent portion (5d) formed to be bent downward at the overlapping portion (5c) of one side is overlapped so as to hook the edge portion of the overlapping portion (5b) of the other side in the form of a hook.

However, when the deep deck is performed without special measures or when only the spot welding fixed to the connection junction in the field as described above, there were the following problems.

First, there is a problem in that the connection joint of the deep deck is weak when the long deck is applied to the deep deck, so that when the concrete is poured, the connection joint is partially dropped, that is, the concrete leaks or the rebar is exposed while the welding part is broken.

In addition, when the connection is severely dropped, the bending deck rigidity of the deep deck may be degraded and the slab may sag, which may result in a structurally dangerous situation.

In addition, since the thickness of the steel plate (1.2t or 1.4t) of the deck is too thin, if there is a welding mistake during spot welding, the deck may be punctured, and the zinc plating may have poor durability due to peeling and discoloration due to heat generated during welding. There are a number of problems occurring.

Therefore, the present invention is designed to solve the above problems, by using a fixing mechanism including a fixed hook bolt and nut member, a hook plate in a state in which some of the adjacent side end connection portions of two neighboring deep decks overlap each other By fixing the side connection parts on both sides, it is possible to solve the problem of dropout and the problems caused by the point connection method when placing concrete, and to improve the joining reliability of the connection as well as the advantages in terms of workability. The purpose is to provide a fixed structure between the connection portion of the deep deck can provide.

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

The present invention, in the connection structure of the deep deck fixing portion between the bent side-end connection portion of the two deep decks for connection and fixing between neighboring deep decks,

A fixed hook bolt having a structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion of the fixed hook bolt is hooked to the outside of the side end connection portion in the through hole formed at the side end connection portion of the one side deep deck from the side end connection portion, and the fixed hook A nut member for fastening the hook plate to the side end connection portion of the other deep deck in a state where the hook plate is coupled to the fastening portion of the bolt is fastened, and the side end portions of both deep decks are connected via the fixed hook bolt and the hook plate. It is characterized in that the fixing between the connection.

Here, the through hole is formed in the inclined surface portion bent upward of one of the deep deck, the hook plate is characterized in that the hook plate is fixed to the upper horizontal bent portion of the other deep deck in the state that the hook portion is inserted laterally in the through hole. do.

In addition, one end of the hook plate is a hook-shaped hook-shaped portion formed bent, the hook-shaped portion is characterized in that coupled to the structure that hangs the upper inner edge portion of the other deep deck from above.

In addition, the hook plate has a structure in which a support end of one end formed by bending upwardly supports the inner side of the side end connection portion of the other deep deck in close contact, and a support end of the other end formed by downward bending closely supports the inner surface of the side end connection of the one deep deck. Characterized in that.

On the other hand, in another embodiment, the present invention, in the connection structure of the deep deck fixing portion between the bent side end connecting portion of the two deep decks for connection and fixing between neighboring deep decks,

The fixed hook bolt of the structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion of the fixed hook bolt is hooked to the outside of the side end connection portion in the through hole formed at the overlapped portion between the one side portion of the fixed hook bolt and the side end connection portion of the other deep deck. And a nut member for fastening and fixing the hook plate to the side end connection portion of the other deep deck in a state where the hook plate is coupled to the fastening portion of the fixed hook bolt, and is connected to both sides via the fixed hook bolt and the hook plate. It is characterized in that the fixing between the side end connection of the deep deck.

Here, the through-holes are respectively formed in the overlapped portion of the other side of the deep deck overlapping the inclined surface portion and the inclined surface portion of the one side deep deck, the hook portion in the state fitted laterally to the through holes on both sides matched The hook plate is characterized in that it is fixed to the upper horizontal bending portion of the other deep deck.

In addition, one end of the hook plate is a hook-shaped hook-shaped portion formed bent, the hook-shaped portion is characterized in that coupled to the structure that hangs the upper inner edge portion of the other deep deck from above.

In addition, the present invention, in the connection structure of the deep deck fixing portion between the bent side end connection portion of the two deep decks for connection and fixing between the adjacent deep deck,

A fixed hook bolt having a structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion is connected to the outside of the side connection portion in the through hole formed at the overlapping portion between one side of the hook portion of the fixed hook bolt and the side connection portion of the other deep deck inside the side connection portion. And a nut member is fastened to the fastening portion of the fixed hook bolt, and both of the dip members are connected to each other through the fixed hook bolt in a state in which the end portion of the hook portion outside the nut member and the side connection portion presses the overlapping portion of the side connection portion in and out. It is characterized in that the fixing between the side connection portion of the deck.

Here, the through-hole is formed in the upper horizontal bent portion of each of the deep decks overlapping each other in one side and the other deep deck, characterized in that the fixing hook bolt is fixed to the upper horizontal bent portion between the side end connection.

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

5 is a cross-sectional view of a construction state using a deep deck to which the present invention is applied, and FIG. 6 is an enlarged cross-sectional view of a first embodiment of a fixing structure between connection portions of a deep deck according to the present invention, and FIG. It is an assembled perspective view of the fixing mechanism in the first embodiment shown in.

As shown in the drawing, the present invention includes a fixed hook bolt 31, a nut member 33, and a hook plate 32 in a state in which a part of side connection parts of two neighboring deep decks 10 and 20 overlap each other. The main point is to fix the side end connection portion on both sides using the fixing mechanism 30 made.

FIG. 6 is a view showing in detail a state in which side connection portions of two neighboring deep decks 10 and 20 are fixed by the fixing mechanism 30, and in particular, the fixing mechanism 30 is installed inside the deep decks 10 and 20. Sectional view in position.

The fixing mechanism 30 shown in FIG. 6 is repeatedly installed at regular intervals along the longitudinal direction of the deep decks 10 and 20, and the fixing mechanism is installed along the longitudinal direction of the deep decks 10 and 20 ( The number and spacing of 30 may be appropriately designed (as is the case in the second to fourth embodiments described later).

Looking at one of the conventional deep deck commercialized, the bent side connection portion is formed to be bent properly so as to partially overlap with the side connection portion of each other adjacent deep deck, one side connection portion and the other side in one deep deck The side end connection of is slightly different in the bent shape (section structure).

First, as can be seen in Figure 2, the side end connection portion ('A' portion) of one side (right side in the drawing) is a two-stage bending structure bent horizontally and then again horizontally bent, the other side ( The side connection part ('B' part) of the left side of the figure is bent upward from the horizontal part, and then bent horizontally, and the end part is bent downward one more time.

In this structure, as shown in FIG. 6, the side end connection part ('A' part of FIG. 1) of the one side has a right deep deck having the same cross-sectional structure as the 'B' part of the other side (the part of FIG. 1). It is fixed by being bonded to the side connection portion of 20), after all, among the multiple deep decks between the adjacent deep decks can be connected and fixed by the same structure as in FIG.

At this time, some of the side connection parts of the left and right deep decks 10 and 20 in the drawing are fixed in a state where they overlap each other, and overlapping parts (including the end bending part and the horizontal bending part) on both sides are separated from each other during concrete pouring (separation). In order to prevent the fall off, it is bent properly formed, the end bent portion 21 is formed to be bent downward from the overlapping portion of one side is overlapped so as to hook the other side of the overlapping edge in the form of a hook.

In the two neighboring deep decks 10 and 20, the overlapped portion becomes the upper horizontal bent portion 24 and the end bent portion 21 in the right deep deck 20 in the drawing, and the left deep deck 10 in the drawing. ) Is the upper edge portion of the upper bent inclined surface portion 12, which is a portion of the upper horizontal bending portion 14 and the end bending portion 21 of the right deep deck 20.

As described above, in a state in which a part of the connection portions of both deep decks 10 and 20 overlap each other, in the present invention, the fixing device 30 is fixed by using the fixing mechanism 30 rather than the conventional welding method.

The fixing mechanism 30 is installed inside the connecting portions of the left and right deep decks 10 and 20 to connect and fix both deep decks (side connecting parts) to each other, which is a fixing hook bolt 31 and a nut member ( 33), the hook plate 32 is comprised.

The fixed hook bolt 31 is manufactured in a hook-like structure in which the hook portion 31b on the other side is bent at the letter 'A' while being threaded on the length of one side fastening portion 31a. The bending angle of the part 31b may be manufactured at an angle smaller than 90 °.

The fixed hook bolt 31 of this structure is coupled to the deep deck 10 while the hook portion 31b is fitted into the through hole 13 formed at the side end connection portion of the deep deck 10.

In addition, the nut member 33 is a nut member 33 fastened to the fastening portion 31a of the fixed hook bolt 31, and is fixed to the fastening portion 31a of the fixed hook bolt 31. It serves to support the hook plate 32 coupled to the fastening portion of the.

In addition, the hook plate 32 is a plate member that is bent at both ends bent to support the connecting portion of the both sides of the deep deck (10, 20), the coupling hole through which the coupling portion 31a of the fixed hook bolt 31 is coupled through ( 32a) is formed.

As shown in FIG. 6 and FIG. 7, the hook plate 32 has a hook-shaped hook portion 32b having one end bent downward, and the hook-shaped portion 32b has a right dip deck 20. The corner portion (hereinafter, referred to as 'upper inner corner portion') 23 that is bent horizontally from the upper end of the inclined surface portion 22 that is bent upward among the side connecting portion (hereinafter, abbreviated as 'connecting portion') portion of the upper portion 23 It becomes the part to walk in

In addition, the other end of the hook plate 32 also has a support end 32c that is bent downwardly long, the support end 32c is the lower end of the lower end is in contact with the inner side of the connection portion of the left deep deck 10 It is a part which supports the hook plate 32 in a state.

Preferably, the hook portion 31b of the fixed hook bolt 31 is provided with a rubber packing 34 which may be in close contact with the inclined surface portion 12 that is bent upward of the left deep deck 10. As shown in 6, when the concrete is poured, the rubber packing 34 packs the portion of the through hole 13 in close contact with the inclined surface portion 12 that is bent upward of the left deep deck 10.

Referring to the process of fixing the connection portion of the two neighboring deep decks using the fixing mechanism of the above configuration as follows.

As shown in FIG. 6, when the deep decks are installed, some of the two connection portions of two neighboring deep decks 10 and 20 overlap each other.

In addition, a through hole 13 must be formed in advance on the inclined surface portion 12 bent upward from the connecting portion of the left deep deck 10, and the hook portion of the fixed hook bolt 31 is fixed to the through hole 13. 31b) is fitted and fixed.

That is, the hook portion 31b of the fixed hook bolt 31 is laterally inserted into the through hole 13 of the left deep deck 10 in the connecting portion inner space in a state where both of the connecting portions overlap each other.

Subsequently, the hook plate 32 is assembled to the fixed hook bolt 31 in the inner space of the connection part by inserting the fastening portion 31a of the fixed hook bolt 31 into the coupling hole 32a. The hook plate 32 is supported on the upper horizontal bent portion 24 of the right dip deck 20 and the hook shape 32b is hung on the upper inner edge portion 23 of the right dip deck 20 to be assembled. do.

Thereafter, the nut member 33 is inserted into and fastened to the fastening portion 31a of the fixed hook bolt 31. The nut member 33 is tightened to press the upper surface of the hook plate 32 downward. Bar, the upper surface of the hook plate is tightened and pressed by the nut member, the lower surface of the hook plate 32 can be pressed to the upper surface of the upper horizontal bending portion 24 of the right dip deck 20.

In the state in which the fixing mechanism 30 is installed as described above, the hook portion 31b of the fixing hook bolt 31 has a predetermined amount rather than a horizontal angle not horizontally bent with respect to the fastening portion 31a arranged vertically. Since the state is bent upward, it is prevented from being pulled out of the through hole 13 by the horizontal force in a state of being caught after being inserted into the through hole 13 of the left deep deck 10.

That is, the hook portion 31b of the fixed hook bolt 31 can only be released in the inclined direction as in the insertion from the through hole 13, so that the fixed hook bolt 31 is hooked with a hook plate (the hook-shaped portion is the right dip deck). Is fixed by the nut member in the state of being caught in the upper inner corner portion of the upper and lower portions thereof, and the hook portion 31b of the fixed hook bolt 31 is completely fixed in the inclined direction by the nut member 33. Does not escape from the through hole 13.

In addition, the fixing mechanism 30 installed as described above is repeatedly installed at regular intervals along the longitudinal directions of the deep decks 10 and 20 to complete connection and fixing between two adjacent deep deck connections.

In this manner, as shown in FIG. 6, the nut fastened to the fixed hook bolt in a state where the hook portion 31b of the fixed hook bolt 31 is fitted into the through hole 13 of the one side deep deck 10. The hook 33 is pressed and fixed to the corresponding surface (upper horizontal bent portion) of the other deep deck 20 using the member 33, and the hook shape portion 32b of the hook plate is attached to the other deep deck 20. When hooked to a predetermined portion (upper inner corner), the fixed hook bolt 31, the nut member 33, and the hook plate 32 are in the directions of arrows (a) and (b) on the drawing between the connecting portions. It provides resistance to the power of.

Particularly, the fixed hook bolt 31 and the hook plate 32 serve to hold the connecting portions of the two deep decks 10 and 20 so as not to spread outward in a state where they are integrally coupled. Problems that occurred while popping can be solved.

In addition, the nut member 33 is in a state in which the end bending portion 21 of the deep deck 20 hangs at the corresponding portion of the other deep deck 10 at both connecting portions of two neighboring deep decks 10 and 20. The hook plate 32 is pressed, which reinforces the resistance stiffness to the force in the direction of the arrow (a) on the drawing.

In the fixed structure of the present invention, the hook portion 31b of the fixed hook bolt 31 is exposed to the outside of the deep deck at the connection portions of the deep decks 10 and 20, and as shown in FIG. 5, the outside of the deep deck is shown. By using the hook portion 31b exposed to the ceiling support member 41 can be installed long up and down.

That is, the upper end of the ceiling mounting support member 41 is connected to the hook portion 31b of the fixing mechanism 30 exposed to the outside of the deep deck, and then connected to the lower end of the ceiling mounting support member 41. By fixing and supporting the ceiling member 42, ceiling construction becomes possible.

On the other hand, Figure 8 is a cross-sectional view showing a second embodiment of the fixing structure between the connection portion of the deep deck according to the present invention, Figure 9 is an assembled perspective view showing the fixing mechanism of the second embodiment shown in FIG.

In the description of the configuration of the second embodiment, descriptions of the same parts as those of the first embodiment described above will be omitted since they can be replaced by the description of the first embodiment and can be sufficiently understood.

8 and 9, in the second embodiment, the structure and shape of the fixed hook bolt 31, the nut member 33, and the rubber packing 34, and their respective roles and effects are shown in the first embodiment. And the fixed hook bolt 31 is fitted into the coupling hole 32a of the hook plate 32 and then fixed by the nut member 33, in particular, as the nut member 33 is tightened. 32 is press-fixed and fixed on the upper horizontal bent portion 24 of the right dip deck 20 in the drawings are the same as in the first embodiment.

In addition, in the second embodiment, the hook plate 32 is a plate member that is bent at both ends to support the connecting portions of both side deep decks 10 and 20, and a fastening portion 31a of the fixed hook bolt 31 is formed at one side thereof. It has a structure in which a coupling hole 32a to be penetrated is formed, which is also the same as the first embodiment.

However, there is a slight difference in the structure and role of the bent portion of the hook plate 32, and the effect, it will be described as follows.

The hook plate 32 in the second embodiment has a support end 32d having one end bent upward, and the support end 32d has a portion for contacting and supporting the inner side of the connecting portion of the right deep deck 20. do.

In addition, the other end of the hook plate 32 is a support end 32e bent downwardly long, and the support end 32e is a portion for contacting and supporting the inner side of the connecting portion of the left deep deck 10.

In this way, in the second embodiment, the hook plate 32 directly supports the inner surfaces of the two deep decks 10 and 20 via the support ends 32d and 32e of both ends, so that the arrow (b) in the drawing Resistance to directional forces can be reinforced.

In addition, the nut member 33 is hooked while the end bending portion 21 of the deep deck 20 is hung on the corresponding portion of the other deep deck 10 at both connection portions of two neighboring deep decks 10 and 20. Since the plate 32 is pressed, the resistance to the force in the direction of the arrow (a) on the drawing can be reinforced.

As described above, the first and second embodiments of the present invention have been described. In order to fix the connection portion between two neighboring deep decks when the deep deck is installed in the actual site, any one of the first and second embodiments may be used. One can be selected and applied, and it is also possible to use the first embodiment and the second embodiment in combination if necessary.

On the other hand, Figure 10 is a cross-sectional view showing a third embodiment of the fixed structure between the connection portion of the deep deck according to the present invention, Figure 11 is a cross-sectional view taken along the line 'C-C' in FIG.

In the description of the configuration of the third embodiment, the description of the same parts as those of the first embodiment described above will be omitted since it can be replaced with the description of the first embodiment and can be sufficiently understood.

As shown in Fig. 10, the structure of the fixing mechanism 30 in the third embodiment is the same as in the first embodiment.

That is, the structure and shape of the fixed hook bolt 31, the nut member 33, the rubber packing 34, the hook plate 32, the respective roles and effects are the same as in the first embodiment, the fixed hook bolt The point 31 is inserted into the coupling hole 32a of the hook plate 32 and then fixed by the nut member 33. As the nut member 33 is tightened, the hook plate 32 is the right deep deck on the drawing. The point that is pressed and fixed on the upper horizontal bending portion 24 of the (20), the point that hangs the hook-shaped portion 32b of the hook plate 32 to the upper inner corner portion 23 of the right dip deck 20, and the like All are the same as in the first embodiment.

However, in the third embodiment, the end bent portion 21 at the connecting portion of the right deep deck 20 is connected to the corresponding portion of the left deep deck 10, that is, the inclined surface portion 12 of the connecting portion of the left deep deck 10. It extends downwardly so that it can overlap with the whole.

In addition, the end bent portion 21 of the right deep deck 20 extending downward as described above may be matched to the through hole 13 of the inclined surface portion 12 of the left deep deck 10 in an overlapping state. The through hole 25 is further formed.

Therefore, in comparison with the first embodiment, the third embodiment places the hook portion 31b of the fixed hook bolt 31 in a state where the through holes 13 and 25 of both the deep decks 10 and 20 coincide with each other. The difference is that the hooks are inserted into the through holes 13 and 25 at the same time, and the fixing hook bolts 31 penetrate the joints of both deep decks 10 and 20 at the same time to further increase the fixability of the joints. It becomes possible.

In this third embodiment, the through-holes 13 and 25 of both deep decks 10 and 20 must coincide with each other to fasten the fixed hook bolts 31. In the deep deck, it is preferable to form the through-hole in the form of a slot hole formed slightly horizontally.

In the illustrated embodiment, the through hole 13 of the left deep deck 10 is formed in the shape of a slot hole, and the rubber packing 34 fitted to the hook portion 31b of the fixed hook bolt 31 is formed after concrete casting. The inside of the connection portion serves to pack the portion of the through hole 25 of the right dip deck 10.

Next, Figure 12 is a cross-sectional view showing a fourth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention, Figure 13 is a block diagram of the fixing mechanism used in the fourth embodiment of FIG.

As shown therein, in the fourth embodiment of the present invention, the fixing mechanism 30 for fixing the deep decks 10 and 20 on both sides includes a fixing hook bolt 31 and a nut member 33.

That is, in the fourth embodiment of the present invention, the fixing mechanism 30 uses only the fixed hook bolt 31 and the nut member 33, and in the case of the first to third embodiments of the present invention, the hook plate (Figs. 6 to 6). Although reference numeral 32 is used in FIG. 11, since the hook plate is not used in the fourth embodiment, the structure of the fixing mechanism 30 becomes simpler, and the overall deep deck using the fixing mechanism 30 is provided. The fastening structure between the connections can be simpler.

In addition, as the number of parts decreases, the manufacturing and construction costs of the fixing device are reduced, the installation work of the fixing device is simplified, and the working time can be shortened.

Compared to the third embodiment of the present embodiment, the hook portion 31c of the fixed hook bolt 31 is connected to the two through holes in a state in which the through holes of the two deep decks 10 and 20 coincide with each other. The method is the same in that both the deep decks (10, 20) on both sides are inserted at the same time.

Therefore, even in the case of the fourth embodiment, since the fixed hook bolt 31 is fastened through the joint portions of both deep decks 10 and 20 at the same time, it is possible to further increase the fixability of the joint portion.

However, in the fourth embodiment, the position of the through hole into which the fixed hook bolt 31 is inserted is the upper horizontal bending portion 14 and 24, which is another overlapping portion in both deep decks 10 and 20.

That is, through holes 14a and 24a are formed in the upper horizontal bending portions 14 and 24 of the left deep deck 10 and the right deep deck 20, respectively, and both horizontal bending portions 14, In the overlapped state of 24, the hook portions 31c of the fixed hook bolts 31 are inserted into the two through holes 14a and 24a that are matched to hang both of the deep decks 10 and 20 together.

Accordingly, in the case of the third embodiment, the end bending portion 21 of the right deep deck 20 extends downwardly to form a through hole 25 therein, and a fixed hook in the through hole 25. Since the hook portion 31b of the bolt 31 needs to be hooked (see FIG. 10), the structure of the connection portion of the right deep deck 20 should be partially changed. However, in the case of the fourth embodiment, the first and second embodiments are implemented. As in the example, it can be applied to the existing deep deck structure.

In the fourth embodiment, in order to allow the hook portion 31c of the hook bolt 31 to be more easily fitted into the through holes 14a and 24a of the upper horizontal bent portions 14 and 24, the fixed hook The bolt 31 is manufactured such that the hook portion 31c has a rounded shape, that is, a gentle curved shape in length.

As a result, the hook portion 31c of the fixed hook bolt 31 is fitted into the matched through holes 14a and 24a of the upper horizontal bent portions 14 and 24 inside the connection portions of the both deep decks 10 and 20, The nut member 33 is screwed into the fastening portion 31a of the fixed hook bolt 31.

At this time, in a state where the nut member 33 is completely tightened, the nut member 33 presses the upper surface of the upper horizontal bent portion 24 of the right deep deck 20 downward, and on the opposite side, the end of the hook portion 31c The lower side of the upper horizontal bending portion 14 of the left dip deck 10 is tightened upward from the outside of the connection portion.

In the case of the fourth embodiment described above, since the nut member 33 is fastened to a portion of the through hole 24a of the right deep deck 20, the rubber packing as in the first to third embodiments is not necessary.

In the first to fourth embodiments of the present invention described above, the fixing mechanism 30 is repeatedly installed at regular intervals along the longitudinal direction of the deep decks 10 and 20, for example, at a conventional spot welding position. Can be.

Also, in the case of the second to fourth embodiments of the present invention, since the hook portions 31b and 31c of the fixed hook bolt 31 are exposed to the outside of the connecting portion, they are used for ceiling construction as in the first embodiment (Fig. 5). Can be.

Next, Figure 14 is a cross-sectional view showing a fifth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention, Figure 15 shows a sixth embodiment of the fixing structure between the connection portion of the deep deck according to the present invention It is a cross section.

First, referring to FIG. 14, in the fifth embodiment of the present invention, the fixing hook 30 for fixing the deep decks 10 and 20 on both sides is fixed hook bolt 31 and the nut member as in the fourth embodiment. It consists of 33.

That is, the fixing mechanism 30 uses only the fixing hook bolt 31 and the nut member 33, and the fixing mechanism 30 has a simpler configuration than the first to third embodiments. By using the fixing mechanism 30, the fixing structure between the connecting portions of the entire deep deck can be simplified.

As shown in Fig. 14, the fixing hook bolt 31 and the nut member 33 of the fifth embodiment are the same as in the fourth embodiment.

However, in the fourth exemplary embodiment, the through holes 14a and 24a are formed in the upper horizontal bent portions 14 and 24 of the left deep deck 10 and the right deep deck 20, and the two through holes 14a coincide with each other. The hook portion 31c of the fixed hook bolt 31 is inserted into the hook 24a to hook both of the deep decks 10 and 20 together, but the fifth embodiment has the upper horizontal side of the both deep decks 10 and 20. After the part is not overlapped between the bent portions 14 and 24, one through hole 24a is formed only at the portion not overlapped at the upper horizontal bent portion 24 of the one side deep deck 20, and the through hole is formed. There is a difference in hooking the hook portion 31c of the fixed hook bolt 31 to the 24a.

That is, the fifth embodiment applies the fixed hook bolt to only one of the deep decks, and the upper horizontal bent portion of the right deep deck 20 on which the upper horizontal bent portion 14 of the left deep deck 10 does not overlap. The through-hole 24a is formed only in the 24, and the hook portion 31c of the fixed hook bolt 31 is inserted into the through-hole 24a outward from the deep deck connection portion, and then the nut is fastened to the fastening portion 31a. Fastening by tightening the member (33).

At this time, in the state that the nut member 33 is completely tightened, the nut member 33 inside the connecting portion is strongly pressed downwardly on the upper surface of the upper horizontal bent portion 24 of the right dip deck 20, the hook portion 31c on the opposite side ) End portion of the upper portion of the left side of the deep deck 10, the upper side of the bent portion 14 is tightened upward.

In addition, in this state, since the end bending portion 21 of the right deep deck 20 hangs the edge of the overlapped portion of the left deep deck 10 in the form of a hook, the hook fixing bolt 31 and the nut member 33 are eventually formed. Even when concrete is poured into the deep decks 10 and 20 by the fixing device 30 configured as described above, the deep dip connection portions on both sides are spread to the side to prevent separation or separation from each other.

Next, referring to FIG. 15, in the sixth embodiment of the present invention, the fixing mechanism 30 for fixing the deep decks 10 and 20 on both sides is provided with the fixing hook bolt 31 and the nut member 33. It further comprises a width fixing plate 35.

In the fixing mechanism 30 of the sixth embodiment, the configuration of the fixing hook bolt 31 and the nut member 33 is the same as in the fifth embodiment, and the width fixing plate 35 has the nut member 33 and the through hole. Both ends are in close contact with the inner surfaces of both of the deep decks 10 and 20 in a state in which the upper surface is bent between the upper horizontal bent portions 24 of the one deep deck 20 having the 24a formed therein.

Both ends of the width fixing plate 35 are bent upwards, and the bent end is a support end for tightly supporting the inner surfaces of the decks 10 and 20.

As a result, in a state where the nut member 33 is completely tightened, the nut member 33 inside the connection portion strongly presses the upper surface of the width fixing plate 35 downward so that the width fixing plate 35 is horizontally upper side of the right dip deck 20. Compress the upper surface of the bent portion 24.

At the same time, on the opposite side, the end of the hook portion 31c tightens the lower surface of the upper horizontal bent portion 14 of the left deep deck 10 upward from the outside of the connection portion, and the width fixing plate 35 has both deep decks 10 and 20. ) To support the inner surface.

In addition, in this state, the end bending portion 21 of the right deep deck 20 hooks the edge of the overlapped portion of the left deep deck 10 in the form of a hook, so that the hook fixing bolt 31 and the nut member 33 and the width thereof are widened. Even when concrete is poured into the deep decks 10 and 20 by the fixing device 30 configured as the fixing plate 35, the connection portions of both deep dips are opened to the side to prevent separation or separation from each other. .

In addition, since the width fixing plate 35 supports the inner surfaces of both of the deep decks 10 and 20, the fixing mechanism of the sixth embodiment can provide resistance in the direction (b) in the drawing.

In this way, according to the structure of the connection structure of the deep deck according to the present invention, by using a separate fixing mechanism for holding the connection portion of both deep decks, the problem of the connection part dropping and the problems and spot welding method when placing concrete All of these can be eliminated, and the joint reliability of the connection can be improved, as well as providing advantageous advantages in terms of workability.

As described above, according to the structure of the connection structure of the deep deck according to the present invention, a fixing mechanism including a fixed hook bolt, a hook plate, and a nut member and configured to hold the connection portions of both deep decks is used. The same effect.

1) The joint reliability of the connection can be improved compared to the spot welding method. Therefore, the connection part can be prevented from being dropped during concrete pouring, and the problem of leaking concrete or exposing reinforcing bars can be solved.

2) By improving the joint reliability of the connection part by bolt connection method, it is possible to construct a durable and structurally safe building.

3) Compared to the welding method, it is possible to prevent damage to the deck and deterioration of durability.

4) Since it is an assembly method rather than a welding method, it is more advantageous in terms of workability.

5) As the fixed hook bolts are installed at regular intervals, there is an advantage in that the ceiling construction using the fixed hook bolts is possible without using a separate member.

Claims (11)

In the connection structure of the deep deck fixing portion between the bent side-side connection of the two deep decks for connection and fixing between neighboring deep decks, A fixed hook bolt having a structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion of the fixed hook bolt is hooked to the outside of the side end connection portion in the through hole formed at the side end connection portion of the one side deep deck from the side end connection portion, and the fixed hook A nut member for fastening the hook plate to the side end connection portion of the other deep deck in a state where the hook plate is coupled to the fastening portion of the bolt is fastened, and the side end portions of both deep decks are connected via the fixed hook bolt and the hook plate. Connection structure of the deep deck, characterized in that the fixing between the connection made. The method according to claim 1, The through-deck is formed in the inclined surface portion bent upward of one of the deep deck, the hook plate is fixed to the upper horizontal bent portion of the other deep deck in the state that the hook portion is fitted laterally in the deep deck Connection structure The method according to claim 1 or 2, One end of the hook plate is a hook-shaped hook-shaped portion formed bent, the hook portion is connected to the structure of the deep deck, characterized in that coupled to the structure that hangs the upper inner corner portion of the other deep deck from above. The method according to claim 1 or 2, The hook plate has a structure in which a support end of one end of the upper bent is in close contact with the inner end of the side end connection part of the other deep deck, and a support end of the other end of the lower bent is in close contact with the inner end of the side end connection part of the one deep deck. Deep deck connection portion fixing structure characterized in that. In the connection structure of the deep deck fixing portion between the bent side-side connection of the two deep decks for connection and fixing between neighboring deep decks, A fixed hook bolt having a structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion is connected to the outside of the side connection portion in the through hole formed at the overlapping portion between one side of the hook portion of the fixed hook bolt and the side connection portion of the other deep deck inside the side connection portion. And a nut member for fastening the hook plate to the side end connection portion of the other deep deck in a state where the hook plate is coupled to the fastening portion of the fixed hook bolt, thereby connecting the fixed hook bolt and the hook plate. The connection structure of the deep deck is fixed, characterized in that the connection between the side end of the deep deck on both sides. The method according to claim 5, The hook plate is formed in each of the inclined surface portion bent upward of one of the deep deck and the overlapping portion of the other deep deck overlapping the inclined surface portion, the hook plate in the state that the hook portion is fitted laterally in the through holes of both sides matched The deep deck connection portion fixing structure, characterized in that the pressing is fixed to the upper horizontal bending portion of the other side deep deck. The method according to claim 5 or 6, One end of the hook plate is a hook-shaped hook-shaped portion formed bent, the hook portion is connected to the structure of the deep deck, characterized in that coupled to the structure that hangs the upper inner corner portion of the other deep deck from above. In the connection structure of the deep deck fixing portion between the bent side-side connection of the two deep decks for connection and fixing between neighboring deep decks, A fixed hook bolt having a structure in which the fastening portion and the hook portion are integrally used is used, and the hook portion of the fixed hook bolt is connected to the outside of the side connecting portion in the through hole formed at the overlapping portion between the hook portion of the fixed hook bolt and the side connecting portion of the other deep deck inside the side connecting portion. And a nut member is fastened to a fastening portion of the fixed hook bolt, and the hook member end portion outside the nut member and the side end connection portion presses the overlapping portion of the side end connection portion in and out of the both sides via the fixed hook bolt. Connection structure of the deep deck, characterized in that the fixing between the side end of the deep deck. The method according to claim 8, The through-hole is formed in the upper horizontal bent portion of each of the deep decks overlapping with each other in one side and the other deep deck, the fixing hook bolt is fixed to the upper horizontal bent portion between the side connection portion Fixed structure. In the connection structure of the deep deck fixing portion between the bent side-side connection of the two deep decks for connection and fixing between neighboring deep decks, Fixed hook bolts having a structure in which the fastening portion and the hook portion are integrally used are used, and the hook portion of the fixed hook bolt is connected to the through hole formed in the upper horizontal bent portion of the one side of the deep deck that does not overlap between the deep decks inside the side connection portion. The nut member is fastened to the fastening portion of the fixed hook bolt, and the nut member inside the side end connecting portion presses the upper horizontal bent portion of the one side deep deck, and the hook end portion outside the side connecting portion Fixing structure of the deep deck connection portion, characterized in that the fixing between the side end connection portion of the two deep decks while pressing the lower surface of the upper horizontal bent portion of the other deep deck. The method according to claim 10, A width fixing plate is additionally interposed between the nut member and an upper horizontal bent portion of the one side deep deck, and both ends of the hook fixing plate closely support the inner side surfaces of both deep decks. rescue.

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