KR101058906B1 - Composite deckplate for bridge maintenance and composite slab construction method using the same - Google Patents

Abstract

PURPOSE: A synthetic deck plate for maintenance and a method of constructing a synthetic floor plate using the same are provided to enable worker to recognize concrete crack and damage with naked eyes after installation since concrete for a floor plate is exposed to the bottom by opening on a bottom plate. CONSTITUTION: A synthetic deck plate for maintenance comprises a bottom plate(110), a vertical reinforcing plate(130) and maintenance concrete(120). A concave part(111) and a convex part(112) are continuously formed on the bottom plate. An opening(E) is formed on a part of the concave part of the bottom plate. The bottom plate is a bending plate with length(L) and width(W) and the concave part is extended widthwise. The vertical reinforcing plate passes through the opening on the top of the concave part. The vertical reinforcing plate is extended in a width direction, which is the length direction of the bottom plate.

Description

COMPOSITE DECKPLATE FOR BRIDGE MAINTENANCE AND COMPOSITE SLAB CONSTRUCTION METHOD USING THE SAME}

The present invention relates to a synthetic deck plate for maintenance and a composite floor plate construction method using the same. More specifically, the present invention relates to a composite deck plate using steel and concrete, and a method for constructing a composite deck plate for maintenance, and a method of constructing a composite deck plate using the same, so as to identify cracks in the bottom of the composite deck after installation.

Conventional bridge deck is constructed of reinforced concrete slab (Reinforced Concrete Slab).

It is common that such reinforced concrete deck is about 20 ~ 25CM thick, but its own weight is high and its rigidity is low, so cracking and sagging occurs due to the common load (live load). By deteriorating, it required a lot of manpower and cost to repair and reinforce the floor plate.

In addition, since installation of formwork and construction of concrete using construction materials such as copper barges at the site, safety accidents and workability of workers are reduced by height work, and much labor and construction costs are increased in formwork and reinforcement work. It was pointed out that there was no problem.

The composite slab was developed to replace such reinforced concrete slabs.

The composite bottom plate is manufactured in a state in which the bottom plate and the concrete are synthesized with each other by placing concrete (bottom plate material) to have a predetermined thickness on an upper portion of the bottom plate made of steel plates, and the tension generated by the common load and the own weight The stress is exerted on the bottom plate and the compressive stress is produced using a mechanical mechanism that forces the concrete.

An example of such a composite bottom plate is shown in FIG. 1A.

The composite bottom plate 10 is supported by the girder 11, for example, a lower plate 12 having a concave-convex portion and a convex portion and having a shear connecting material 13, and a shear connecting material 13 in the concave portion. After installing the I-shaped steel (14) provided with is generally constructed by pouring and curing concrete.

In the case of the composite bottom plate 10b, there is an advantage that the workability is improved by not installing the reinforcing bars separately, but it requires a large number of I-shaped steel, which is low in economic efficiency, and also requires the installation of a large number of shear connection materials. There was a problem that the castle and workability is poor.

Nevertheless, synthetic decks are often used in rapid bridge construction because they do not require installation of copper bars and formwork for deck construction.

However, the practical problem that prevents the application of composite deck is not the structural performance but the difficulty of its maintenance.

That is, according to Figure 1b is shown an example of a composite bottom plate 20 using a vertical plate of perforated plate shape without using a plurality of I-shaped steel.

In the composite bottom plate 20, a vertical reinforcing plate 23 in the form of a rectangular plate is formed in the concave portion of the bent lower plate 21 in which the uneven portion is formed without using the I-shaped steel. It can be seen that the hole 22 is formed in 23 to exclude the use of a shear connection material such as a stud, and thus the reinforcing bar assembly 24 is installed on the upper surface of the vertical reinforcing plate 23.

Finally, the bottom plate concrete (C) is poured so that the vertical reinforcing material 22 and the reinforcing bar assembly 24 are buried in the transverse direction between the girder and the bottom plate 21 so that the final composite floor plate 20 The installation will be completed.

This overcomes the disadvantages of the conventional composite floor plate 10 as shown in Figure 1a, but in using the composite floor plates (10, 20) users are struggling with maintenance.

That is, when looking at the bottom of the composite bottom plate 20 according to Figure 1b is bent bottom plate 21 is finished with steel, so whether the bottom plate 21 and the composite floor plate concrete (C) or not (cracking, etc.) Although it is almost impossible to verify after installation, there was a problem in that the use of synthetic floorboards was admittedly negative.

Furthermore, the composite bottom plates 10 and 20 introduced in FIGS. 1A and 1B are structures that must support a load caused by an overweight vehicle load, etc., to manufacture a lower plate and a vertical reinforcement plate to secure required bending rigidity. In order to produce a large amount of steel sheet by processing, there is a problem that the manufacturing cost is basically too high.

Accordingly, the present invention can be manufactured to be easily assembled and installed because of its light weight, low cost and excellent structural rigidity, and construction of a composite deck plate for maintenance and composite floor plate using the same, which are manufactured to enable maintenance during public use. Providing a method is a technical problem to be solved.

To this end,

First, the lower plate of the deck plate is basically formed in the form of a bent plate formed with concave and convex portions that are advantageous in flexural rigidity, and forms an opening E formed in a longitudinal direction (longitudinal) of the central portion of the concave portion, Maintenance concrete finishing (E) is to be accommodated and formed in the recess of the lower plate.

Accordingly, the cracks due to the defect of the synthetic floor plate and the like can be confirmed through the concrete for maintenance by the opening E, thereby enabling the maintenance of the composite floor plate.

Secondly, the opening is closed by the maintenance concrete, and the maintenance concrete is formed in the inner space of the recess so as to fill a portion of the vertical reinforcement plate extending along the recess of the lower plate to fix the lower plate of the vertical reinforcement plate. This made it possible.

Third, the vertical reinforcing plate is to be installed in the concave portion of the lower plate, the vertical reinforcing plate is cut through the lower portion of the steel sheet material having a certain height (h) through hole so that the maintenance concrete can communicate between the cutting steel sheet material Formed to facilitate the manufacture and installation of the vertical reinforcement plate.

Fourth, the vertical reinforcing plate is to be directly supported on the upper surface of the girder to be connected to each other by using a connecting material for the vertical connecting plate to each other in order to avoid the risk of conducting the composite deck plate, especially in the cantilever portion.

To this end,

A bending plate member having a length L extending laterally and a width W extending in the longitudinal direction, the recess extending in the lateral direction and the convex portion being continuously formed, and the opening E being formed in a portion of the recess. Bottom plate;

A vertical reinforcement plate extending in the transverse direction in the longitudinal direction of the lower plate on the upper surface via the opening (E) on the concave upper surface; And

Including the maintenance concrete formed in a part of the inner space S of the recess so as to close the opening E and a portion of the vertical reinforcing plate is buried, so that the defect of the maintenance concrete can be confirmed through the opening E. Provides a composite deck plate for maintenance.

Also preferably

The vertical reinforcing plate is a steel plate material having a predetermined height (h) as a plurality of spaced apart in the longitudinal direction to the lower plate to form a plurality of cutting steel sheet material at the bottom to form a through hole between the cutting steel sheet. Provide a composite deck plate for maintenance.

Also preferably

An extension length of the vertical reinforcement plate is provided to be longer than the extension length of the lower plate to provide a composite composite plate for maintenance that the vertical reinforcement plate protruding in the transverse direction from the lower plate is supported and installed on the upper surface of the girder.

Also preferably

In the vertical reinforcing plate, the upper and lower portions of the cutting steel sheet to be formed by horizontally bent upper and lower horizontal bending portion, and provides a maintenance composite deck plate for allowing the lower horizontal bending portion to be fixed to the upper surface of the lower plate by rivets do.

Also preferably

Install the girders to be spaced apart in the transverse direction to extend in the longitudinal direction,

A concave portion and a convex portion extending in the lateral direction are continuously formed in a bent plate member having a length L extending in a lateral direction and a width W extending in a longitudinal direction so that both side ends are supported on the upper surface of the girder. A lower plate having an opening E formed in a part of the recess; Installed in the transverse direction via the opening (E) on the upper surface of the concave portion, and is fixed to a plurality of longitudinally spaced apart as a steel plate material having a constant height (h) so that a plurality of cutting steel sheet material is formed in the bottom spaced apart. Vertical reinforcing plate formed through holes between the cutting steel sheet; And a concrete for maintenance, which is formed in a part of the inner space of the recess so as to fill a part of the vertical reinforcement plate while closing the opening (E). The composite deck plate is fixedly installed, and both ends of the vertical reinforcement plate are separated from the lower plate. Installed to support the upper surface of the girder further protruding in the transverse direction,

On the upper surface of the vertical reinforcing plate horizontally spaced apart in the grooves for installing a plurality of compressive reinforcing material is installed by installing a compressive reinforcement which is a reinforcing bar assembly made of a grid type,

It provides a composite floor plate construction method using a composite deck plate for maintenance comprising the step of placing concrete on the upper surface of the lower plate so that the compressive reinforcement, vertical reinforcement plate is embedded.

Also preferably

The composite deck plate is connected to each other using a vertical reinforcing plate connecting plate on the upper surface of the girder composite bottom plate using the maintenance composite deck plate so that the vertical reinforcing plates of adjacent composite deck plate is connected to each other by a vertical reinforcing plate connecting plate Provide construction security.

The composite bottom plate according to the present invention is exposed to the bottom by the opening formed in the bottom plate is exposed to the bottom, so after the installation of concrete cracks, damage detection such as damage and visual inspection to improve the efficiency of maintenance and maintenance of the composite floor plate The problem of use can be solved at once.

In addition, the composite floor plate according to the present invention can provide a low-weight composite floor plate can be sufficiently secured structural performance while reducing the amount of steel used for manufacturing compared to the conventional composite floor plate.

Furthermore, in installing the vertical reinforcing plate, it is possible to provide a composite bottom plate having more durability by preventing the thin lower plate from being affected by welding by using rivets.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1A and 1B are a perspective view and a bottom perspective view of a conventional composite floor plate for a bridge,
2a and 2b is a view of manufacturing the deck plate and the vertical reinforcement of the present invention,
3A, 3B, 3C and 3D are installation flowcharts of the composite bottom plate of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Synthetic deck plate 100 for maintenance of the present invention

First, in the present invention, the composite deck plate 100 is formed in the lower plate 110 and the vertical reinforcement plate 130 in the state in which the bottom plate concrete (C) is not formed, the concrete for maintenance 120 is formed on a portion of the lower plate Means that.

Thus, the composite deck plate 100 of the present invention is fixed to the lower plate 110 and the lower plate 110, the opening (E) and the maintenance concrete 120 is formed as shown in Figure 2a large shear connector and tensile stress reinforcement It includes a vertical reinforcing plate 130 to function as.

The lower plate 110 is manufactured in the form of a horizontal plate by processing a steel plate having a predetermined thickness, for example.

Hereinafter, the lower plate will be described based on the case of using a steel sheet.

Accordingly, the lower plate 110 functions as a formwork in which the concrete for the bottom plate is cast a predetermined height, and functions as a structural member that resists the lower tensile stress generated when a common load is applied to the composite floor plate. .

The lower plate 110 is to be connected to be installed continuously by the connecting portion (end surface) in the longitudinal direction and the longitudinal direction of the bridge in the longitudinal direction.

In addition, the lower plate 110 is manufactured to have a constant width (W, longitudinal direction) and length (L, transverse direction), for example, having a predetermined length (L), for example, a modularized manufactured to have a width of 60 ~ 70cm When installed in the longitudinal direction using the lower plate 110 has the advantage of very excellent workability.

The lower plate 110 is made of a bent plate material in which the concave portion 111 and the convex portion 112 are formed continuously, the concave portion 111 is formed extending in the longitudinal direction (lateral direction) of the lower plate It can be seen that.

In addition, the concave portion 111 can be seen that the opening (E) is formed to extend in the longitudinal direction, for example oval over the entire extension length.

This opening (E) is to minimize the length (L) of the lower plate so as not to be a structural problem, but serves to expose the bottom surface of the maintenance concrete 120 to be described later.

The recess 111 is provided with a vertical reinforcing plate 130 vertically in the longitudinal direction.

The vertical reinforcing plate 130 is responsible for two functions in the present invention.

First, it acts as a tensile stress stiffener to resist common loads.

Tensile stress is generated in the lower part of the composite bottom plate, and compressive stress is generated in the upper part due to the common load (passage load of vehicles, pedestrians, etc.).

At this time, the tensile stress is mostly the lower plate 110 as described above, if this burden is increased, a problem that should increase the thickness of the lower plate.

Since the lower plate is economical and easy to manufacture according to its thickness, it is necessary to configure the optimum thickness, but alternative configuration, that is, tensile stress reinforcing material can be shared.

1A may be used as the tensile stress reinforcing material as shown in FIG. 1A, but in the present invention, the I-shaped steel becomes too heavy and the steel is expensive, so that the vertical reinforcing plate 130 is processed to have a rectangular steel plate (STEEL PLATE). Will be used.

The vertical reinforcement plate 130 is produced by processing the steel sheet in consideration of the size of the tensile stress to be shared, but in the predetermined length in consideration of the bottom plate width or the size of the modular bottom plate, the height is the bottom plate height In consideration of the manufacturing, the thickness is made in consideration of the installation interval.

Furthermore, the vertical reinforcing plate 130 is formed to extend further than the length (L) of the lower plate 110 to be supported by the upper flange of the girder 210, as shown in Figure 3a, may be installed along the recess. However, also in the longitudinal direction can be seen that a large number is installed.

In FIG. 2A, the vertical reinforcing plate 130 in the form of a rectangular plate is illustrated as the simplest example, but vertical reinforcing plates 130 (130a and 130b) as shown in FIG. 2B may also be used.

First, according to FIG. 2A, a plurality of cutting steel sheets 131 are formed in the lower portion as a steel sheet having a constant height h so as to be spaced apart from each other in the horizontal direction, and the through holes 134 between the cutting steel sheets 131. It can be seen that this is formed.

The through hole 134 serves to communicate the maintenance concrete 120 to be poured.

Furthermore, the vertical reinforcing plate 130 is horizontally bent to form an upper horizontal bending plate so that the worker does not bend or deform even when the user presses on the vertical reinforcing plate. Only the vertical reinforcing plate is constrained by its location and deformation by the concrete for maintenance, it is basically possible to prevent the deformation in the setting and installation process.

In addition, according to Figure 2b of the vertical reinforcing plate (130; 130a, 130b) of the present invention, it is understood that the use made by separating the two rectangular steel plate having a predetermined height (h) and length (l) up and down This can be said to be a way to make a more economical vertical reinforcement plate production.

For example, the vertical steel plate having a vertical height (h) is vertically cut in the longitudinal direction, the cutting (D) is divided into a vertical stiffening plate by forming a continuous wave form in the longitudinal direction so that the steel plate is divided into two vertically Each of (130; 130a, 130b) is used as a vertical reinforcing plate.

Therefore, one rectangular steel plate can be divided into two and used.

The cutting (D) is a lower horizontal portion (D1) extending inward from each of the central portion of both ends of the steel sheet as shown in Figure 2b, the upper inclined portion (D2) inclined upward from the end of the lower horizontal portion, the end of the upper slope An upper horizontal portion D3 extending horizontally from the upper horizontal portion, a lower inclined portion D4 inclined downward from the upper horizontal portion to the upper portion of the steel sheet, and a lower horizontal portion D1 horizontally extending from the end of the lower inclined portion again; It is made to be divided into two vertical reinforcing plate by forming a waveform of the cutting continuously in the longitudinal direction.

At this time, the lower portion of each of the divided vertical reinforcing plate (130; 130a, 130b) is to be formed so as to be laterally adjacent to each other formed in the longitudinal direction of the cutting steel sheet (131; 131a, 131b).

As a result, the vertical reinforcing plate (130; 130a, 130b) can be seen that it is very easy to install on the lower plate, so that the self-supporting, the lower end of the cutting steel sheet (131; 131a, 131b) is a horizontal bending plate 132; 132a and 132b to be connected to the lower plate 110.

The cut steel sheet material (131; 131a, 131b) formed so as to be able to communicate with the maintenance concrete can increase the composite capacity with the concrete for the floor plate material.

The vertical reinforcing plate (130; 130a, 130b) is to use a riveting method, not welding, in order to be fixed to the lower plate (110).

That is, welding may affect the durability of the lower plate as the welding heat is transmitted to the lower plate 110, and in particular, when the thin lower plate is used, the rigidity of the lower plate may be degraded.

Therefore, in the present invention, the vertical reinforcing plate 130 (130; 130a, 130b) is fixed to the lower plate manufactured by using a particularly thin steel plate.

That is, a rivet hole is formed in the lower plate 110 in advance, and a rivet hole corresponding to the rivet hole is formed in the horizontal bending plates 132; 132a and 132b in advance so that the rivet 160 is installed to penetrate the rivet hole. After that, the rivet head is hit by the rivet so that the vertical reinforcing plate (130; 130a, 130b) is fixed to the lower plate.

By using such a riveting method, the rivet hole is not large and otherwise is not effectively affected by the heat of welding, which makes it very effective to use a thin bottom plate.

In addition, the lower lateral reinforcement 150 is further formed on both outer surfaces of the slit cut steel sheets 131; 131a and 131b of the vertical reinforcement plates 130; Will be supplemented.

In addition, the upper surface of the vertical reinforcing plate (130; 130a, 130b) is a plurality of compression reinforcing material installation grooves (133; 133a, 133b) spaced apart in the horizontal direction further installed to compress the reinforcement assembly made of a grid type The reinforcing material 140 is installed to be mounted on the compression reinforcing material installation grooves 133a and 133b.

In addition, the lower end of the cutting steel sheet (131; 131a, 131b) is bent to the lower horizontal bending plate (132; 132a, 132b) to form a connection portion with the lower plate (110).

In addition, the lower transverse reinforcing bar 150 is further formed in advance on the outer surface of the cut steel plate 131 of the vertical reinforcing plate 130 to compensate for the bending rigidity of the composite bottom plate.

In addition, the upper surface of the vertical reinforcing plate 130 is a plurality of compression reinforcing material installation grooves 133 spaced apart in the horizontal direction is further installed so that the compression reinforcing material 140 is a reinforcing bar assembly made of a lattice to be described later The same applies to the compression reinforcing material installation groove 133.

At this time, although not shown, it is preferable that the upper portion of the vertical reinforcing plate (130; 130a, 130b) is bent horizontally to form an upper horizontal bending plate so that the operator does not easily bend or deform even when stepping on the vertical reinforcing plate.

As a result, the vertical reinforcing plate 130 of the present invention uses an economical thin steel plate in manufacturing, and such a steel plate is easy to process and may not consider much of its own weight, and thus may function as a highly effective tensile stress reinforcing material and shear connector. It can be seen that.

Next, after the vertical reinforcing plate is installed in the recess of the lower plate via the opening, the maintenance concrete 120 is poured into the recess so that the opening E is closed to cure.

This maintenance concrete 120 is

First, if the opening (E) is left as it is, the bottom plate concrete (C) is leaked from the lower plate 110, so as to basically prevent the opening and closing the opening (E) at the bottom of the composite bottom plate after the construction of the composite floor plate later The manager is to check whether there is a defect (cracking, etc.) of the maintenance concrete 120 exposed to the lower portion of the composite floor plate by the opening (E).

When two, the maintenance concrete 120 also serves to securely secure the vertical reinforcement plate 130 described above to the lower plate. In FIG. 2B, the vertical reinforcement plate 130 is fixed to the lower plate by rivets, but according to FIG. 2A, the vertical reinforcement plate 130 is vertically reinforced to the lower plate 110 without damaging the lower plate because it is embedded and fixed by the maintenance concrete 120. 130 can be fixed, it can be seen that the deformation and the like does not occur even if the operator brightens the vertical reinforcement plate with the upper horizontal bending plate.

Furthermore, when the maintenance concrete 120 is to be formed in the entire recess, the role of reinforcing the recess may also serve to reinforce the lower plate using a thin steel plate.

The vertical reinforcement plate 130 is installed on the lower plate 110 through spot welding for initial setting, and the vertical concrete reinforcing plate is simply installed by placing the maintenance concrete 120 in the recess 111 inside space S. It can be seen that the fixed installation of.

<Synthetic floor plate construction method using the composite deck plate 100 for maintenance of the present invention>

First, the synthetic bottom plate of the present invention can be said to be synthesized by pouring concrete (C) for the bottom plate on the composite deck plate 100 as shown in FIG.

First, as shown in FIG. 3A, the girder 210 (210a, 210b) is first installed in a bridge, a pier, and the like, not shown as a bridge undercarriage.

Although the girders 210 (210; 210a and 210b) using the I-type steel are illustrated in FIG. 3A, it is obvious that PSC girders may be used.

Therefore, the synthetic deck plate 100 for the maintenance using the one according to FIG. 2A, but in brief, it can be seen that the lower plate 110, the maintenance concrete 120, and the vertical reinforcement plate 130 are largely formed. In addition, it can be seen that the lower plate 110 has a plurality of concave portions 111 and convex portions 112.

It can be seen that only four concave portions 111 are formed in FIG. 2A, but seven concave portions 111 are formed in FIG. 3A. Accordingly, the number of formation of the concave portion can be adjusted according to the transverse length and width of the lower plate.

For example, such a composite floor plate of the present invention is used to have a predetermined length (L, transverse direction) but to be formed to form a width (W) in the range of 600 ~ 700mm, vertical reinforcement further protruding in the transverse direction from the lower plate The plate 130 is installed to be supported on the girder upper surface.

Next, as shown in FIG. 3B, the compression reinforcing material 140, which is a reinforcing steel assembly network, is installed on the compression reinforcing material groove 133 formed on the upper surface of the vertical reinforcing plate 130.

The compressive reinforcing material 140 may use a reinforcing steel bar assembly.

As such, the bottom plate concrete (C) is poured in the state where the compressive stiffener 140 is installed.

As a result, the bottom plate concrete (C) is placed on the lower plate 110, it can be seen that the vertical reinforcement plate and the compression reinforcement 140 is formed to be embedded.

The concrete (C) work for the bottom plate is performed continuously while installing a plurality of composite deck plate between the girder transverse direction and connecting the composite deck plate in the longitudinal direction.

For example, the composite deck plate is preferably installed by connecting a plurality of longitudinally to each other, such a connection may be bent to be connected to each other by bending the bottom plate connection in the form of male and female, for example, using a bolt and nut, there is no limitation .

Next, looking at the installation example of the composite deck plate (100; 100a, 100b) of the present invention in the cantilever portion of the bridge and the transverse direction, as shown in Figure 3c, the vertical surface of the composite deck plate (100a) on the outermost girder 210a Reinforcement plate 130 is installed to be mounted on top of. Although not shown in the drawing, a bolt through the upper flange of the girder may be used, or a welding method may be used.

At this time, since the composite deck plate 100a installed in the cantilever part is conducted to the outer side, in order to prevent this, conventionally called a magpie foot between the bottom of the composite deck plate 100 installed in the cantilever part and the outermost girder 210a. A kind of clubbing was installed, which is very cumbersome and is a major factor in delaying air.

Therefore, the present invention uses the connecting plate 300 for the vertical reinforcing plate.

The vertical reinforcing plate connecting plate 300 may be formed in various forms, but the vertical reinforcing plate connecting plate 300 eventually connects the outermost composite deck plate and the transversely adjacent synthetic deck plate to each other to form the outermost composite. Deckplates have the ability to prevent them from falling on the outermost girder.

For example, the connecting plate 300 for the vertical reinforcing plate can be used as a steel plate of the "TT" shape as a whole, a plurality of rivet holes 310 are formed at both ends of the horizontal plate, corresponding to the rivet hole 310 The rivet hole 310 is formed in another composite deck plate 100b adjacent to the composite deck plate 100a provided in the cantilever portion.

The connecting plate 300 for the vertical reinforcing plate overlaps the composite deck plate 100b adjacent to the composite deck plate 100a installed in the cantilever portion,

Also, by using the rivets not shown in the rivet holes 310, both composite deck plates 100a and 100b are connected to each other in the transverse direction.

The composite deck plate (100a) installed in the cantilever portion is also connected to the composite deck plate (100b) adjacent by the connecting plate 300 for the vertical reinforcement plate it can be seen that the fall prevention is possible.

When placing the concrete (C) for the bottom plate material on the composite deck plates (100a, 100b) is installed so that the composite floor plate of the present invention can be constructed.

Furthermore, it can be seen that the composite deck plates 100b installed in the lateral direction between the girders are also connected to each other by the vertical reinforcing plate 130 and the connecting plate 300 and the rivet for the vertical reinforcing plate.

Therefore, it can be seen that the vertical reinforcing plate connecting plate 300 of the present invention is used for the lateral connection of the composite deck plates 100a and 100b.

At this time, according to FIG. 3d, when looking at the composite bottom plate 400 according to the present invention from the bottom, it can be seen that the maintenance concrete 120 is exposed to a portion of the lower plate as described above, the composite bottom plate 400 in common When the crack occurs on the bottom surface), it can be seen that the defect occurs by the maintenance concrete 120, the defect is generated easily.

Furthermore, in particular, the composite deck plate 100a installed in the cantilever part may be installed as a composite deck plate without forming the maintenance concrete 120 without separately forming the opening E of the present invention. This is because in the case of the cantilever part, there is little need for maintenance by an opening part.

100: synthetic deck plate 110: bottom plate
120: bottom plate 130: vertical reinforcing plate
140: compression reinforcing material 150: lower transverse reinforcing bar
160: rivet 210a, 210b: girder
300: connecting plate for the vertical reinforcement plate 400: composite bottom plate
C: Concrete for floorboard D: Cutting
E: opening S: inner space of the recess

Claims (6)

A bent plate member having a length L extending laterally and a width W extending in the longitudinal direction, and the recess 111 and the protrusion 112 extending in the lateral direction are continuously formed, and a part of the recess is formed. A lower plate 110 having an opening E formed therein;
A vertical reinforcing plate (130) extending in the transverse direction in the longitudinal direction of the lower plate on the upper surface via the opening (E) on the concave portion; And
The maintenance concrete 120 formed in a part of the inner space S of the recess so as to close the opening E and a part of the vertical reinforcing plate is embedded. Maintenance composite deck plate, characterized in that to make sure. The method of claim 1,
The vertical reinforcing plate 130 is a steel plate having a predetermined height (h) as a plurality of spaced apart in the longitudinal direction of the lower plate to form a plurality of cutting steel sheet material at the bottom to form a through hole between the cutting steel sheet. Composite deck plate for maintenance, characterized in that formed. The method of claim 2,
The extension length of the vertical reinforcing plate is formed to be longer than the extension length of the lower plate so that the vertical reinforcing plate protruding in the transverse direction from the lower plate is supported on the upper surface of the girder, characterized in that the composite deck plate for maintenance. The method of claim 2,
The vertical reinforcing plate is formed so that the upper and lower horizontal bending portion of the upper and lower portions of the cutting steel sheet is horizontally bent, the composite deck plate for maintenance, characterized in that the lower horizontal bending portion can be fixed to the upper surface of the lower plate by rivets . Install the girders to be spaced apart in the transverse direction to extend in the longitudinal direction,
A concave portion and a convex portion extending in the lateral direction are continuously formed in a bent plate member having a length L extending in a lateral direction and a width W extending in a longitudinal direction so that both side ends are supported on the upper surface of the girder. A lower plate having an opening E formed in a part of the recess; Installed in the transverse direction via the opening (E) on the upper surface of the concave portion, and is fixed to a plurality of longitudinally spaced apart as a steel plate material having a constant height (h) so that a plurality of cutting steel sheet material is formed in the bottom spaced apart. Vertical reinforcing plate formed through holes between the cutting steel sheet; And a concrete for maintenance, which is formed in a part of the inner space of the recess so as to fill a part of the vertical reinforcement plate while closing the opening (E). The composite deck plate is fixedly installed, and both ends of the vertical reinforcement plate are separated from the lower plate. Protrude in the transverse direction so as to be supported on the top of the girder,
On the upper surface of the vertical reinforcing plate horizontally spaced apart in the grooves for installing a plurality of compressive reinforcing material is installed by installing a compressive reinforcement which is a reinforcing bar assembly made of a grid type,
Composite compression plate construction method using the composite deck plate for maintenance comprising the step of placing concrete on the upper surface of the lower plate so that the compressive reinforcement, vertical reinforcement plate is embedded. 6. The method of claim 5,
The composite deck plate is connected to each other using a vertical reinforcing plate connecting plate on the upper surface of the girder composite bottom plate using the maintenance composite deck plate so that the vertical reinforcing plates of adjacent composite deck plate is connected to each other by a vertical reinforcing plate connecting plate Construction method.

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