KR100768779B1 - Modular deck-plate with open part - Google Patents

Abstract

The present invention relates to a deck plate (deck-plate) used in the construction of a concrete structure, an opening (개구부 口 部) is formed inside the deck plate, the lower plate is configured to form a coupling plate during the pouring and curing of the concrete If the need to expose the lower surface of the concrete for later inspection, etc. It is to be able to remove the bonding plate.

Through the present invention, it is possible to fundamentally solve the problem of securing the concrete surface, which was the biggest drawback of the conventional deck plate, thereby enabling accurate observation of the concrete surface as well as various non-destructive inspections and specimen collection. The effect of improving the reliability and performance of the used concrete structure can be obtained.

Deck-plates, Openings, Concrete

Description

Modular deck-plate with open part

1 is a view illustrating a conventional deck plate construction state

Figure 2 is a perspective view of a conventional perspective deck plate

Figure 3 is an exploded perspective view and a perspective view of the fastening state of the present invention

4 is a view illustrating a construction state of the present invention

5 is a diagram illustrating the construction and inspection process of the concrete structure according to the present invention

Figure 6 is an explanatory view of the bonding plate stripping process of the present invention

7 is a view illustrating a modified state of the coupling plate of the present invention

8 is an exploded perspective view of a modified embodiment of the present invention and a perspective view of the fastening state

<Code Description of Main Parts of Drawing>

100: Deck-plate

108: transparent plate

109: connection

110: opening

120: binding plate

121: Rib

131: fastening required

132: fastening protrusions

141: recessed part

142: protrusion

200: concrete

301: set screw

302: Schmidt Hammer

The present invention relates to a deck plate (deck-plate) used in the construction of a concrete structure, an opening (개구부 口 部) is formed inside the deck plate, the lower plate is configured to form a coupling plate during the pouring and curing of the concrete If the need to expose the lower surface of the concrete for later inspection, etc. It is to be able to remove the bonding plate.

Deck plate is a kind of plate-shaped formwork, which is maintained even after the curing of pour concrete is completed without dismantling the formwork, and it has the rigidity to support the weight of concrete on the deck plate itself. Not only can it be minimized, it will also structurally reinforce the upper concrete.

In particular, since the formwork installation and dismantling process is simplified or omitted, it is possible to obtain the effect of reducing the air and construction costs, and to minimize the ridges supporting the formwork during the curing of the concrete. There is an advantage that can be installed without disturbing communication.

Deck plate is usually made of a metal plate, such as galvanized steel sheet, as shown in Figure 1, by forming a connecting portion 109 is bent at both ends and combined with a plurality of deck plate 100 connected through these connecting portion 109 It will make up the whole structure.

As described above, the deck plate 100 has many advantages in terms of structural stability and construction pieces, but the deck plate 100 has a problem that the upper concrete 200 is not exposed to the outside at all.

That is, unlike the general formwork, since the deck plate 100 is not removed even after the curing of the concrete 200 is completed, the surface of the concrete 200 is not exposed to the outside, and thus the surface of the concrete 200 cannot be observed and cracks, It is almost impossible to check for whitening and leaks.

Thus, after cutting a portion of the inside of the deck plate 100 as shown in Figure 2, by bonding a transparent plate 108 on the top, or by forming the deck plate 100 itself made of a transparent body of concrete 200 Although a product that can visually check the surface has been developed, this also allows indirect visual observation through a transparent body, and it is almost impossible to observe in detail, and Schmidt Hammer which requires direct contact with the surface of the concrete 200 ( Non-destructive testing, local destructive testing and specimen collection were also impossible.

The present invention has been made in view of the above-described problems, and by forming an opening in the deck plate, and attaching the bonding plate to be in close contact with the bottom of the deck plate to remove the bonding plate as needed after curing of the concrete is completed It is to secure the exposed surface of the.

That is, by forming a deck plate with a main body having an opening formed thereon and a bonding plate that is closely attached to the bottom of the main body, during pouring and curing of the concrete, the opening is completely closed through the joining plate to prevent leakage of concrete. When the inspection is necessary after curing is completed, by removing the binding plate it is possible to perform various inspections on the exposed concrete surface through the opening.

The detailed configuration of the present invention through the accompanying drawings as follows.

First, Figure 3 shows the deck plate 100 and the coupling plate 120 of the present invention in a separated state and a combined state, in the illustrated embodiment a pair of fastening recess 131 on the bottom of the deck plate 100 Are formed in the longitudinal direction and a plurality of openings 110 are formed between the fastening recesses 131, and fastening protrusions 132 are formed at both ends of the coupling plate 120, such fastening recesses 131 and fastening protrusions ( 132 is coupled to the deck plate 100 and the coupling plate 120 is in close contact, the opening 110 is closed.

4 is a partially cutaway perspective view of the concrete 200 structure to which the present invention is applied. As can be seen through the drawing, the opening 110 is formed in the deck plate 100, and the periphery of the opening 110 is shown. The coupling plate 120 which is in close contact with the bottom of the deck plate 100 is fastened to prevent leakage of the concrete 200 during pouring and curing, and a rib (121) as necessary under the coupling plate 120. It can also be reinforced by forming a.

On the other hand, the connection between the adjacent deck plate 100 is made through the bent connection portion 109 on both sides of the deck plate 100, the combination method of such deck plate 100 has already been described through the prior art bar detailed The description is omitted.

5 is a representative cross-sectional view showing the construction and inspection process of the concrete 200 structure through the deck plate 100 of the present invention, the connection between the deck plate 100 and the coupling plate 120 is completed, the pouring place closed Once secured, the concrete 200 is poured and cured, and after curing is completed, various inspections may be performed on the exposed concrete 200 surface by removing the coupling plate 120 as shown in the lowermost part of the drawing. have.

FIG. 5 shows a situation in which the Schmidt Hammer 302 method, which is a representative non-destructive test method, is implemented. In addition, various contact and non-contact non-destructive tests, as well as physicochemical local destruction methods or specimen collection, are possible. As shown in the figure, a fixing screw 301, such as a self-drilling screw, may be applied for more secure fastening and close contact between the deck plate 100 and the coupling plate 120, but such an auxiliary coupling means is provided in the present invention. Since those skilled in the art can be selectively applied according to site conditions, the specific scope of the claims is not limited thereto.

6 illustrates a detachment method of the deck plate 100 and the coupling plate 120 in the embodiment illustrated in FIGS. 3 to 5, and the fastening protrusion 132 and the fastening recess 131 are bent at right angles. It has a predetermined shape, the inlet width of the fastening recess 131 is configured so that the fastening protrusion 132 can be inserted upward.

That is, in separating the coupling plate 120 from the deck plate 100, when the coupling plate 120 is pulled out in the longitudinal direction, not only an excessive work space is required, but also takes a lot of time in the separation process, Figure 6 As can be seen through, the inlet of the fastening recess 131 is configured to be wide enough to move the coupling plate 120 laterally and pulled out downward.

On the other hand, the deck plate 100 and the coupling plate 120 to maintain a considerable level of solid fastening state by its own elastic or frictional force so as not to be separated during construction, the hammer to remove the coupling plate 120 by manpower in the field In the case of the embodiment shown in FIG. 6, since the lateral movement is required for the removal of the coupling plate 120, the external force is applied to the coupling plate 120 when the blow is applied. Deformation as in may occur may cause problems in the removal and recombination of the coupling plate 120.

Thus, as shown in Figure 8, by forming the fastening recess 131 and the fastening protrusions 132 in a form similar to the dental structure, the removal of the coupling plate 120 through the longitudinal movement only without the lateral movement, It is possible to minimize the longitudinal movement distance while enabling the attachment.

That is, a plurality of recesses 141 are repeatedly formed in the fastening recesses 131 of the deck plate 100 in the longitudinal direction, and the fastening protrusions 132 of the coupling plate 120 correspond to these recesses 141. The plurality of protrusions 142 are also repeatedly formed in the longitudinal direction, but the concave portion 141 and the protrusions 142 have the same length and spacing, so that the attachment and detachment of the coupling plate 120 only through a minimum of longitudinal movement. This is possible, and the blow in the field is also made only in the longitudinal direction to prevent excessive deformation.

As a result, the technical gist of the present invention is a deck plate for a concrete structure construction. A pair of fastening recesses 131 are spaced apart from each other on the bottom surface of the deck plate 100, and between the fastening recesses 131. An opening 110 is formed, and a coupling plate 120 having fastening protrusions 132 formed at both side ends thereof is in close contact with the deck plate 100 by combining the fastening protrusion 132 and the fastening recess 131. The prefabricated deck plate is formed, characterized in that the opening.

In addition, the fastening recess 131 of the deck plate 100 is formed by repeating a plurality of concave inlet 141 in the longitudinal direction, and a plurality of protrusions 142 on the fastening protrusion 132 of the coupling plate 120. Repeatedly formed in the longitudinal direction, the recess 141 and the protrusion 142 is a prefabricated deck plate formed with an opening, characterized in that the length and spacing are the same.

Through the present invention, it is possible to fundamentally solve the problem of securing the concrete surface, which was the biggest drawback of the conventional deck plate, thereby enabling accurate observation of the concrete surface as well as various non-destructive inspections and specimen collection. The effect of improving the reliability and performance of the used concrete structure can be obtained.

Claims (2)

In the deck plate for the construction of concrete structures, On the bottom of the deck plate 100, a pair of fastening recesses 131 are formed spaced apart; An opening (110) is formed between the fastening recesses 131; The coupling plate 120 having the fastening protrusions 132 formed at both side ends thereof is coupled to the deck plate 100 by the fastening protrusions 132 and the fastening recesses 131. The fastening recess 131 of the deck plate 100 has a plurality of recesses 141 formed in the longitudinal direction. Fastening protrusions 132 of the coupling plate 120 is formed with a plurality of protrusions 142 are repeated in the longitudinal direction; The recessed part 141 and the protrusion 142 is a prefabricated deck plate having an opening, characterized in that the length and spacing are the same.

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