KR101860299B1 - Baseplate seperatable deckplate construction method - Google Patents

Abstract

It is easy to respond in the field by moving the truss reinforcing bars and supporting members even if it is necessary to cut according to the shape of the bottom plate of the building. It is made of environment-friendly material and can effectively resist dispersion of the bottom plate concrete installation pressure The separable deck plate includes a body portion extending in a transverse direction and both ends protruding upward from the body portion on a side surface of the body portion; A bottom surface protrusion protruding from both bottom side surfaces of the body portion; And a center fixing sleeve having a vertical hollow groove formed in the central bottom surface of the body portion; A spacer member formed integrally with the bottom surface projection of the receiving member; And a base plate provided so that the spacer member is in contact with the lower fixing bolt, the lower fixing bolt being fastened to the vertical hollow groove of the center fixing sleeve.

Description

[0001] BASEPLATE SEPERATABLE DECKPLATE CONSTRUCTION METHOD [0002]

The present invention relates to a detachable deck plate. More specifically, even when cutting is required in the oblique direction according to the plane shape of the bottom plate of the building, the support member of the truss reinforcing bars can be easily moved to facilitate the field operation and is made of an environmentally friendly material, The present invention relates to a method for constructing a separable deck plate.

In deck plates made of truss reinforcing bars and base plates for building flooring construction,

Wherein the truss reinforcing bars are formed such that both the lower reinforcing bars and the upper reinforcing bars extend in the longitudinal direction in a cross section forming a vertex of a triangle,

The base plate is made of a steel plate and a plurality of truss reinforcing bars are spaced apart from the upper surface of the base plate and extended in the longitudinal direction of the deck plate.

Therefore, in the field, it is advantageous that reinforcement work for reinforced concrete construction, formwork installation and dismantling work, and installation equipment for work space are minimized.

However, there is a risk of corrosion when the base plate is made of a steel plate, and there is a problem that it is almost impossible to confirm the maintenance position by the base plate when leakage occurs in the hardened bottom plate after the bottom concrete is laid.

Therefore, a detachable deck plate (de-molding plate) is developed and used after de-molding the base plate in which the truss reinforcing bars are fixedly installed, after the deck plate is poured.

1A is a perspective view of a conventional detachable deck plate.

That is, as shown in Fig. 1A, the truss reinforcement 50 (also referred to as a truss girder) including the lower reinforcing bars 51 and 52, the oblique reinforcing bars 54 and 55 and the upper reinforcing bar 53 and the base plate 20 are separated It can be seen that a detachable device is installed.

When the bottom plate concrete poured so that the truss reinforcing bars 50 are cured is cured, the base plate 20 is detached using a detachment device, and the bottom surface of the exposed bottom plate concrete is closed.

Therefore, it can be seen that the above-mentioned detachable device is formed of the support member 10 and the spacer member 20. [

The supporting member 10 is a member for supporting the lower portion of the truss reinforcing bar 50,

The spacer member 20 may be a member for securing the thickness of the bottom plate concrete by separating the truss reinforcing bars 50 supported by the supporting member 10 from the base plate 20.

The support member 10 is formed as a cut-away section having a U-shaped cross section and is supported on the upper surface of the support member 10 and the horizontal coupling hole 16 by using a horizontal coupling hole 16 in a state in which the truss reinforcing bar 50 is supported. Respectively,

It can be seen that the spacer member 20 is mounted on the projection formed on the bottom surface of the receiving member 10 by the fixing bolt 40.

At this time, it can be seen that the fixing bolt 40 restrains the fixing bolt 40 by the channel member 30 extending in the longitudinal direction of the deck plate on the bottom surface of the base plate 20.

When the bottom plate concrete is poured, the truss reinforcement 50, the support member 50, the spacer member 20, and the horizontal binding port 16 are buried, and the fixing bolt 40, together with the channel member 30, It can be seen that the base plates are detached together while being separated from the member 20.

1B is a structural cross-sectional view of another conventional detachable deck plate.

That is, the intermediate portion between both ends of the truss reinforcing bar 50 is fixed to the base plate 20 with the intermediate clip 18, and both ends are supported by the end clip 20 without being fixed to the base plate.

The center clip 18 is formed by bending a steel wire having a predetermined diameter or an iron plate having a predetermined thickness into a predetermined shape and the central portion of the center clip 18 is mounted on the upper side of the lower reinforcing bar of the truss girder 50 To be done,

Both end portions of the center clip 18 are bent downward and then the end portions are bent in a direction parallel to the center portion so as to be fitted in the grooves of the ribs.

The lower end of the end clip 20 is formed to be able to be supported by the base plate 20 so as to support the lower portion of the truss reinforcing bar 50. The upper surface of the end clip 20 is formed with a seating surface on which the lower reinforcing bar is placed, As shown in FIG.

That is, in the conventional separable deck plate, a spacer member is used to separate the truss reinforcing bars and the base plate from each other and the truss reinforcing bars must be stably supported using the supporting members. However,

In case of actual floor concrete pouring, deformation of truss reinforcing bars occurs due to failure to resist the applied pressure, and construction errors and quality control problems are pointed out.

Especially, when the bottom plate is designed not in a rectangular shape but in various deformed shapes, almost all of the detachable deck plates are formed in a rectangular shape, so that it is possible to obliquely cut the bottom plate according to the shape of the bottom plate.

However, when the deck plate is to be cut, it is necessary to separate the truss reinforcement from the base plate and to move the spacer member and the supporting member. However, since such a moving installation is impossible or complicated, The support member and the spacer member can not be provided.

Korean Registered Utility Model No. 20-0360307 (Name of the invention: Reinforced prefabricated slab deck using plywood, published on Aug. 25, 2004) Korean Patent No. 10-1439488 (Title: Deformable deck for slab molding and method of constructing slab using the same, publication date: September 12, 2014)

The present invention relates to a detachable deck plate for separating a base plate after a truss reinforcing bar and a base plate are installed with a supporting member and a spacer member and is excellent in smoothness of the bottom surface of the bottom plate concrete after demounting the base plate, It is a technical object to solve the problem of providing a method of constructing a separable deck plate capable of cutting diagonal lines depending on the shape and facilitating the installation of a month bolt.

In order to achieve the above object,

(a) preparing separately a base plate, a support member in which the spacer member is integrated, and a truss reinforcing bar assembled with the supporting member by a truss reinforcing fixture; (b) installing the base plate transferred to the site first in the bottom plate installation position; (c) disposing a support member in which a spacer member is integrated on the upper surface of the base plate, and fixing a truss reinforcing bar to the support member using a truss reinforcement fixture; And (d) fixing and fixing the support members to the base plate using the lower fixing bolts, wherein the base plate brought into the site of the step (a) includes a body portion extending in the transverse direction Both end portions in the form of an upright wall protruding upward from the body portion on the side surface of the body portion; A bottom surface protrusion protruding from both bottom side surfaces of the body portion; And a center fixing sleeve having a vertical hollow groove formed in the central bottom surface of the body portion; A spacer member formed integrally with the bottom surface projection of the receiving member; And a base plate provided so as to be in contact with the spacer member and through which a lower fixing bolt fastened to a vertical hollow groove of the central fixing sleeve is inserted, wherein both ends of the receiving member are formed in a curved shape, The base plate is prevented from being concentrated by the support member and the spacer member because the resistance against the concrete insertion pressure is reduced. In the step (b), the base plate is cut The truss reinforcing bars are separated from the supporting member by loosening the upper fixing bolts fastened to the vertical hollow holes of the center fixing sleeve exposed on the upper surface of the central portion of the receiving member body to cut the truss reinforcing bars in the field, Cut in accordance with the oblique cut plane, and in step (c), the lower fixture bolt is loosened in accordance with the oblique cut plane The truss reinforcement cut in the step (b) is fixed to the support member which is moved by the truss reinforcing fixture and the upper fixing bolt in the step (c) so that the support member integrated with the spacer member is moved and arranged on the upper surface of the base plate. So as to provide a detachable deck plate construction method.

Since the separable deck plate according to the present invention uses a base plate made of a plastic material such as a lightweight FRP and has a rib formed on the bottom surface thereof, it is possible to sufficiently secure the flexural rigidity, And it is possible to provide a method of constructing a separable deck plate that is more environmentally friendly and economical by minimizing the number of supporting members and spacer members supporting the truss reinforcing bars.

In order to more effectively resist the installation pressure of the bottom plate concrete acting on the supporting member, the separable deck plate according to the present invention is formed such that a portion supporting the lower portion of the truss reinforcing bar is formed in a horizontal plane, The present invention provides a method of constructing a detachable deck plate in which a plurality of receiving members formed by curved surfaces and a plurality of receiving members and a space member for supporting the receiving members on the base plate are reduced to prevent a load transmitted to the base plate from being concentrated toward the receiving member. Lt; / RTI >

The detachable deck plate according to the present invention is characterized in that the spacer member is formed as a protruding block on the bottom surface on both end sides of the receiving member so that the protruding block is supported by the spacer member, The present invention provides a separate type deck plate construction method which is capable of easily moving the space member and the support member together in a slanting cut according to the shape of the bottom plate (slanting in relation to the longitudinal direction) .

Considering that the shape of the truss reinforcing bars is a predetermined triangular cross-section, the separable deck plate according to the present invention is characterized in that both lower reinforcing bars are positioned at both ends of the supporting member, and a protruding block is positioned right below the separating deck plate, The deck plate construction method can be provided.

The separable deck plate according to the present invention can be provided with a separable deck plate construction method having excellent workability and workability since the base plate is made of FRP material and can be connected to the adjacent base plate simply by shearing.

FIG. 1A is a perspective view of a conventional detachable deck plate,
FIG. 1B is a structural cross-sectional view of another conventional detachable deck plate,
FIGS. 2A and 2B are perspective views of the separable deck plate of the present invention,
2C is an oblique cut-away view of the separable deck plate of the present invention.
Figs. 3A, 3B, 3C and 3D are a construction flowchart of the separable deck plate of the present invention of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. 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 order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

[Separable deck plate (100) of the present invention]

FIGS. 2A and 2B show a perspective view of the detachable deck plate of the present invention.

The separable deck plate 100 of the present invention separates the base plate 110 after the bottom plate concrete is poured and separates the truss reinforcing bars 120 from the spacer member 140 to be spaced apart from the base plate 110 The support member 130 is installed and the space member 140 and the support member 130 are integrated with each other. At this time, the truss reinforcement 120 mounted on the support member 130 is installed to be removable by the truss reinforcement fixture 150.

2A and 2B, the separable deck plate 100 includes a base plate 110, a truss reinforcement 120, a support member 130, a spacer member 140, and a truss reinforcement 150 .

First, the base plate 110 serves as a form for receiving the bottom plate concrete in the separable deck plate 100 of the present invention. In general, the base plate 110 is installed so that both ends are supported on the upper surface of a beam member of a building. The adjacent base plates are brought into contact with the side surfaces and are made to have a rectangular shape.

Since the base plate 110 is a portion where the bottom plate concrete is directly poured, a bending moment is generated according to the applied pressure, and the weight of the truss reinforcing bar 120 and the bottom plate concrete pouring It is common to manufacture the steel plate using a steel plate in order to secure the flexural rigidity.

However, since the steel plate is inevitably subject to corrosion and self weight is increased, it is made of a thin plate, and it is necessary to compensate the flexural rigidity of the applied pressure and the concentrated stress.

Accordingly, the present invention is to manufacture the base plate 110 with a plastic material (for example, FRP plate material) so as to solve the corrosion problem, and it is possible to reduce its own weight and to recycle it,

As shown in FIG. 2B, the grating ribs 111 may be further formed on the bottom surface so that the grating ribs 111 can be made thinner, but the bending rigidity can be secured.

In addition, the base plate 110 and the other base plate 110 adjacent to each other are sheared in various shapes.

For example, considering that the base plate made of FRP is difficult to bend like a steel plate,

They are joined together in a half-step manner so as to be shear-

Shear bond so as to be intertwined with each other in a semicircular shape,

Shear-joining them so as to be inclined,

They are shear-bonded so as to be engaged with each other in a protruding block shape,

So that they are sheared so as to be intertwined with each other by a triangle,

The entire side surface can be closely adhered by shear bonding while taking into account the material properties, so that leaking through the connection portion of the base plate can be effectively prevented when the bottom concrete is laid.

2A and 2B, the truss reinforcement 120 is integrally combined with the bottom plate concrete together with the base plate 110 to serve as an inner reinforcement of the bottom plate, The upper reinforcing bar 122 and the oblique reinforcing bars 123 are formed in a truss shape having a triangular cross section and extend in the longitudinal direction of the base plate 110. [

The truss reinforcing bars 120 are spaced apart from the base plate 110 by a predetermined height because the bottom plate concrete is formed in the space between the truss reinforcing bars 120 and the base plate 110 to secure the thickness of the truss reinforcing bars 120 This is because we have to.

The support member 130 and the spacer member 140 are spaced apart from the base plate 110 by the truss reinforcing bars 120.

2A and 2B, the upper level support member 130 supports the truss reinforcing bars 120 so as to be seated on the upper surface thereof, and supports the insertion pressure of the bottom plate concrete and the weight of the truss reinforcing bars 120 to the base plate 110 It has the ability to deliver.

In addition, a plurality of truss reinforcing bars 120 are spaced apart from each other in the longitudinal direction of the base plate 110 to disperse and support the weight of the truss reinforcing bars 120 extending in the longitudinal direction of the base plate.

The support member 130 is formed of a body 131, both ends 132, a bottom protrusion 133, and a center fixing sleeve 134, and is formed as an inverted U-shaped cross section as a whole according to FIG. 2A Able to know.

2A, the body 131 is a beam member extending in the transverse direction perpendicular to the longitudinal direction of the base plate 110. The lower and upper reinforcing bars 121 of the truss reinforcing bars 120 are seated on the upper surface of the body 131, It can be seen that both end portions 132 are formed on both sides of the body portion in the form of a vertical wall so that the two lower reinforcing bars 121 do not spread sideways by the putting pressure or the like.

Accordingly, the truss reinforcing bars 120 can be easily placed on the upper surface of the supporting member 130 in a manner of being inserted downward from above.

The both end portions 132 are horizontally supported on both sides of the body portion 131 as a block member of a spherical shape and both the lower reinforcing bars 121 are horizontally supported. The upper surface is formed in a curved surface shape such as a semicircle.

The end portions 132 having a curved upper surface have a small resistance against the applied pressure and therefore play an important role in preventing the built-in pressure from being concentrated on the base plate by the receiving member 130 and the spacer member 140 .

At this time, it is understood that the upper surface of the trunk portion 131 is formed lower than the upper surface of the both end portions 132 so as to surround the lower portion of the truss reinforcing bars 120.

The bottom surface protrusion 133 is formed to protrude downward from both bottom ends of the body portion 131 so that the support member 130 can be stably supported on the upper surface of the base plate 110 while dispersing and supporting the self- .

The bottom surface fixing sleeve 134 is a sleeve protruding downward from a central bottom portion of the body portion 131 as a vertical hollow hole so that the supporting member 130 can be attached to and detached from the base plate 110.

The lower fixing bolt 135 penetrates from the lower portion of the base plate 110 so that the bolt is fastened to the threaded portion so that a threaded portion is formed on the side surface in the vertical hollow hole.

When the lower fixing bolt 135 is loosened, the truss reinforcing bars 120 and the supporting member 130 can be separated from the base plate 110.

Further, the vertical hollow hole formed with the threaded portion is exposed by the separation of the base plate 110 after the bottom plate is completed, which can be used as an insert for fastening the screw bolt, and may be a cosmetic finish.

In addition, the truss reinforcing bars 120 are not welded to the receiving member 130 so that the vertical hollow holes are formed to penetrate through the trunk portion 131 of the receiving member.

The truss reinforcing bars 120 are spaced apart from the base plate 110 by the sectional height from the upper surface of the end portions 132 of the supporting member 130 to the bottom surface of the bottom surface projection 133, .

The spacer member 140 is further interposed between the base plate 110 and the support member 130 so that the support member 130 can be manufactured in a large quantity in the same shape and size.

2A and 2B, the lower end of the spacer member 140 is installed on the upper surface of the base plate 110 while the lower end of the bottom surface projection 133 of the support member 130 is inserted and supported.

The spacer member 140 may have various cross-sectional shapes (circular, square, etc.) so as to be formed to have a minimum cross-sectional size. When the base plate 110 is detached using the plastic member, So that no traces are generated on the bottom surface,

The support member 130 is made of a steel material,

As a result, the support member 130 and the spacer member 140 are integrally manufactured and can be installed and moved together.

In addition, since the spacer member 140 is made of a plastic material and the bottom surface is exposed, it is possible to easily attach the piece or the nail.

2A and 2B, the truss reinforcement 150 is for fixing the truss reinforcement 120 to the support member 130,

The upper and lower reinforcing bars 121 and 121 are formed so as to surround the truss reinforcement 120 and the receiving member 130 by using a horizontal portion extending in the transverse direction and a pawl formed at both ends of the horizontal portion,

And is fastened and fixed by the upper fixing bolt 136 fastened to the vertical hollow hole of the central fixing sleeve 134 exposed on the upper surface of the central portion of the body 131 as described above.

When the upper fixing bolt 136 is rotated and separated, the truss reinforcing bar 120 and the supporting member 130 can be easily separated.

[Cutting of the separable deck plate (100) of the present invention by diagonal cutting)

FIG. 2C is a cross-sectional view of the separable deck plate of the present invention. FIG.

The deck plate 100 of the present invention is advantageous in manufacturing, transporting, and installing the base plate 110 by being manufactured in a rectangular shape.

However, in the case where the bottom plate is formed in such a rectangular shape (the same applies to the case where it is installed on the beam member), there is no problem in other cases, Can not be aligned with the shape of the bottom plate end face.

Therefore, in the field, it is necessary to cut the deck plate diagonally according to the end surface of the bottom plate.

That is, according to FIG. 2C, it is necessary to partially cut the oblique cut surface of the rectangular deck plate 100. The truss reinforcing bar 120 may be adjusted in length or separately prepared in accordance with the oblique cut surface,

It can be understood that the support member 130 and the spacer member 140 can be integrally moved and aligned with the oblique cut surface.

That is, since the truss reinforcing bars 120 are fixed by the truss reinforcing bars 150 and the upper fixing bolts 136, the upper fixing bolts 136 are loosened, And the supporting member 130 are separated from each other, the truss reinforcement 120 is cut in the field,

The spacer member 140 integrated with the receiving member 130 is loosened by moving the lower fixing bolt 135 to move along the oblique cut surface,

It can be seen that the truss reinforcing bar 120 can be easily fixed to the truss reinforcement fixture 150 and the upper fixing bolt.

When the final spacer member 140 and the supporting member 130 are completely moved and the disposing of the truss reinforcing bars 120 is completed, the supporting member 130 is fixed to the base plate 110 with the lower fixing bolt 135 So that the final fixed setting is made.

[Method of Construction of Separate Deck Plate (100) of the Present Invention)

FIGS. 3A to 3D illustrate a construction flowchart of the separable deck plate 100 of the present invention.

First, as shown in FIG. 3A, the separable deck plate 100 of the present invention is provided.

The separable deck plate 100 includes a support member 130 in which the base plate 110 and the spacer member 140 are integrated, a truss reinforcement 120 assembled with the support member 130 by a truss reinforcement fixture 150, Respectively.

Next, as shown in FIG. 3B, the base plate 110 is installed.

3A and 3B, a supporting member 130 and a truss reinforcing bar fixing member 150 in which the base plate 110 and the spacer member 140 are integrated are assembled with the supporting member 130 The truss reinforcing bars 120 are brought in and the base plate 110 is installed first.

The base plate 110 is formed with a plurality of holes for fastening the lower fixing bolts 135 to the bottom surface fixing sleeve 134 of the supporting member 130.

As shown in FIG. 2B, the base plate 110 has a lattice-shaped rib 111 formed on the bottom surface thereof. The side plates are installed so as to be connected in front of each other to prevent leakage of the bottom plate concrete due to various types of shear bonding .

At this time, as shown in FIG. 3B, the portion of the base plate 110 where the oblique cut is required is provided with the obliquely cut portion.

Next, as shown in FIG. 3C, the truss reinforcing bars 120 are installed using the supporting member in which the spacer member is integrated.

That is, the truss reinforcement 120 assembled with the support member 130 is set on the upper surface of the base plate 110 by the truss reinforcement fixture 150. At this time, since the installation position and the number of the support members 130 are already determined, the truss reinforcing bars 120 assembled with the support members 130 are disposed on one base plate by a plurality of truss reinforcing fixtures 150 do.

3C, the truss reinforcing bar 120 is separated from the receiving member and cut. After the supporting member 130, in which the spacer member 140 is integrated, is moved and aligned with the oblique cut surface, The cut truss reinforcement 120 is fixed to the supporting members 130 having the spacer member 140 finally set using the truss reinforcement fixture 150.

Next, the supporting member 130 is fixed to the base plate 110.

That is, the supporting member 130 is fastened to the base plate 110 by using the lower fixing bolts 136 (not shown in FIG. 3C), and then the bottom plate concrete C is installed. This type of bottom plate can be reinforced with additional reinforcement of the bottom plate prior to concrete pouring.

After the bottom plate construction is completed, the base plate 110 is separated as shown in FIG. 3D.

That is, the lower fixing bolt 135 is released and the base plate 110 is separated so that the bottom surface of the cured bottom plate is exposed. The separated base plate 110 can be recycled as a plastic material, thereby enabling eco-friendly utilization.

The vertical hollow holes formed in the spacer member 140 of the present invention and the bottom surface fixing sleeve 134 of the receiving member are exposed to the bottom surface of the bottom plate, In the case of interior construction, it is easy to install a piece or a nail.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: detachable deck plate 110: base plate
111: grid rib 120: truss reinforcement
121: both lower reinforcing bars 122: upper reinforcing bars
123: inclined reinforcing bar 130: support member
131: body portion 132: both ends
133: bottom protrusion 134: central locking sleeve
135: lower fixing bolt 136: upper fixing bolt
140: spacer member 150: truss reinforcement

Claims (8)

(a) separately preparing a support member 130 and a truss reinforcing bar 120 assembled with the support member 130 by a truss reinforcement fixture 150, the base plate 110, the spacer member 140, ;
(b) installing the base plate (110) brought into the site first in the bottom plate installation position;
(c) A supporting member 130 in which the spacer member 140 is integrated is disposed on the upper surface of the base plate 110, and truss reinforcing bars 120 are fastened to the supporting member 130 using the truss reinforcing fastener 150 A step of fixed installation; And
(d) fastening and fixing the supporting member 130 to the base plate 110 using the lower fixing bolt 135,
The base plate 110, which is brought into the field of step (a), includes a body 131 extending in the transverse direction and both ends 132 in the form of an upright wall protruding upward from the body on the side of the body. A bottom surface protrusion 133 protruding from both bottom side surfaces of the body portion; And a center fixing sleeve (134) having a vertical hollow groove formed in a central bottom surface of the body portion (130); A spacer member 140 integrally formed with the bottom surface protrusion 133 of the receiving member 130; And a base plate 110 installed to be in contact with the spacer member 140 and through which a lower fixing bolt 135 fastened to the vertical hollow groove of the center fixing sleeve 134 is inserted, 130 are formed in a curved shape so that the resistance of both ends 132 to the concrete insertion pressure is reduced to prevent the built-in pressure from being concentrated on the base plate by the support member 130 and the spacer member 140 And,
In the step (b), when it is necessary to cut the base plate in accordance with the oblique cut surface of the bottom plate, the base plate is fastened to the vertical hollow hole of the center fixing sleeve 134 exposed on the upper surface of the center portion of the receiving member body 131 The truss reinforcing bars 120 are separated from the supporting members 130 by cutting the upper fixing bolts 136 to cut the truss reinforcing bars 120 in the field and cut the base plate 110 to match the oblique cut surfaces, The lower fixing bolt 135 is loosened in accordance with the oblique cut plane so that the support member 130 in which the spacer member 140 is integrated is arranged to be disposed on the upper surface of the base plate 110,
The truss reinforcement 120 cut in step (b) is fixed to the truss reinforcement fixture 150 of the step (c) and the support member 130 which is disposed by the upper fixing bolt 136, Construction method. The method according to claim 1,
If the installed bottom plate concrete is cured after the step (d)
And releasing the lower fixing bolt 135 to separate the base plate 110 so that the bottom surface of the cured bottom plate is exposed,
A method of constructing a detachable deck plate, the method comprising the steps of: fastening a hanging bolt to a vertical hollow hole of an exposed support member, or forming an insert hole in an exposed spacer member (140) The method according to claim 1,
In the step (b), the base plate 110 is made of a plastic material, and a bending stiffness is ensured by forming a rib on the bottom surface of the base plate 110, Or shear-joining them in a semicircular shape so as to be intertwined with each other, shear-joining them so as to be inclined to each other, shear-joining them to each other in a protruding block shape, or shear-joining them so as to be intertwined with each other by a triangle Way. delete The method according to claim 1,
In the step (c), the truss reinforcing fixture 150 may be configured such that the claw portion surrounds the lower reinforcing bar 121 by using a horizontal portion extending in the transverse direction and a claw portion formed at both ends of the horizontal portion,
The center fixing sleeve 134 of the base plate 110 extends to the upper surface of the body portion and a truss reinforcing fixture 150 for fixing the truss reinforcing bars to the supporting member is inserted into the vertical hollow portion of the central fixing sleeve exposed on the upper surface of the body portion. Wherein the upper fixing bolt (136) is loosened so that the truss reinforcing bar can be separated from the supporting member while being fixed to the supporting member by the upper fixing bolt (136) in the groove. The method according to claim 1,
The trunk portion 131 of the receiving member 130 is a beam member extending in the transverse direction perpendicular to the longitudinal direction of the base plate 110. The upper and lower reinforcing bars 121 of the truss reinforcing bars 120 are seated And both ends 132 are formed on both sides of the body in the form of an upright wall so that both the lower reinforcing bars 122 do not extend sideways, And the lower surface of the truss reinforcing bar 120 is formed to be lower than the upper surface of the truss reinforcement 120. [ The method according to claim 1,
The truss reinforcement 150 of the step (a)
A truss reinforcing fixture (150) for fixing the truss reinforcing bars to the supporting member is formed on the upper surface of the body, and the central fixing sleeve (134) of the base plate (110) So that the truss reinforcing bars can be separated from the supporting members by releasing the upper fixing bolts 136, while being fixed to the supporting members by the upper fixing bolts 136,
Wherein the truss reinforcing fixture (150) is configured such that the claw portion (130) surrounds the lower reinforcing steel (121) by using a horizontal portion extending in the transverse direction and a claw formed at both ends of the horizontal portion. The method according to claim 1,
The spacer member 140 of the step (b)
The deck plate is formed to be in a desired position on the upper surface of the base plate 110 together with the receiving member 130 formed integrally with the bottom surface protrusion 133 of the plastic material and having the truss reinforcing bars separated therefrom, The truss reinforcing bars can be fixedly installed on the supporting member in which the movable spacer member is integrated.

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