KR101994089B1 - Precast Concrete Slab With Pullout-Shear Resistance Elements Of Mesh Rib And Manufacturing Method Thereof - Google Patents

Abstract

The present invention relates to a half PC slab for onsite placement including a drawing shear mesh member and having a wide width, and a manufacturing method thereof. In the case of manufacturing a wide half PC slab, a pair of drawing shear mesh members, which are spaced to have a space part therebetween for a molding function for the formation of a rib and a drawing or shear resistance function, protrude to a predetermined height to be formed in not only a main direction (span direction) between spots of the half PC slab but also in a sub direction having an orthogonal wide width, and thus, the space part between the drawing shear mesh members is filled with concrete on site, so a bidirectional rib is formed in the upper part. According to an embodiment of the present invention, the half PC slab includes: a half PC slab body in which reinforcement bars having a predetermined size are placed in a lattice arrangement in longitudinal and width directions; and a longitudinal drawing shear mesh member and a width drawing shear mesh member, which comprise a pair of meshes spaced to form a placement space in the center in order to be formed by intersecting in longitudinal and width directions in the upper part of the half PC slab, are formed by being buried in the half PC slab body from bottom to a predetermined height, and include a plurality of gap keeping members to connect the meshes in an exposed upper part of the half PC slab body to keep the meshes spaced.

Description

Precast Concrete Slab With Pullout-Shear Resistance Elements Of Mesh Rib And Manufacturing Method Thereof}

The present invention relates to a half PC slab for field casting having a wide width and a method of manufacturing the same, and more particularly, to forming ribs on an upper portion of a slab body when a wide half PC slab is manufactured. Generating end mesh members formed in pairs spaced apart to have a form function and a space part therebetween to have a drawing or shear resistance function are projected to a certain height so that the main direction (span direction) between the points of the half PC slab, as well as a wide width perpendicular to each other The generating stage mesh member is formed to have bi-directional ribs formed at the top by forming concrete in the space part of the generating stage mesh member at the construction site by forming it in both directions with a negative direction, and having a wide width. It relates to a PC slab and a method of manufacturing the same.

In general, PC slab is supported by span direction. In case of span around 2.5m, PC slab is often made wide in consideration of workability and manufacturing cost. Span is reinforced with rigid rib in span direction. The stiffness in the width direction, which is the right angle direction of R, is relatively decreased, and cracks occur parallel to the span direction during construction, resulting in an increase in manufacturing cost due to the limitation of the width of the PC slab or the lifting aids, thereby lowering economic efficiency.

As a background technology of the present invention, there is a patent registration No. 1036748, "multi ribbed slab" (Patent Document 1). In the background art 'top plate; An inclined curling plate extending inclined downward at both ends in the longitudinal direction of the upper plate; And a plurality of ribs extending in the longitudinal direction of the upper plate on the lower surface of the upper plate and having a predetermined interval in the width direction and parallel to each other, wherein both ends of the ribs are opposite to the upper inclined surface and the upper inclined surface connected to the inclined copper plate. It proposes a multi-ribbed PC slab having a lower inclined surface having an inclined surface and having a tapered horizontal haunch formed on both end sides of the rib portion where both ends of the ribs become upper inclined surfaces, the thickness of which becomes thicker toward the inclined copper plate. do.

In addition, as in the background art, when a major span between points is required, ribs are projected in the span direction at the bottom of the slab body to secure rigidity and strength, but a separate formwork is formed to form ribs at the bottom. The manufacturing cost is increased because the fabrication cost is increased, and when the width is widened in the direction perpendicular to the longitudinal direction, the rigidity is decreased, so that cracks are generated parallel to the longitudinal direction around the lower ribs during construction.

Patent Registration No. 1036748 "Multi Ribbed Slab"

The present invention is to solve the problems as described above, the pull-out mesh member having a formwork for forming ribs and the draw or shear resistance function on the upper portion of the slab body is protruded to be configured in both directions to easily draw in the field By placing concrete on the shear mesh member to form bidirectional ribs on the upper part of the slab body, it is possible to increase the strength not only in the span direction but also in the width direction even when the width is larger than the span, and the construction cost, weight ratio and manufacturing cost are reduced. The purpose of the present invention is to provide a half-powered slab for on-site casting having a wide width and a manufacturing method thereof.

The present invention includes a half PC slab main body which is disposed in a lattice within a thickness by reinforcing reinforcement in a longitudinal direction and a width direction therein in a predetermined size; Consists of a pair of meshes so as to form a pour space in the center spaced apart at regular intervals, formed in the upper and the cross direction in the longitudinal direction and width direction at the top of the half PC slab body, embedded in the half PC slab body to a certain height from the lower end, A longitudinal phosphorus stage mesh member and a width phosphorus stage mesh member having a plurality of spacing members connecting the pair of meshes in an exposed portion of the upper part of the half PC slab body to maintain the pair of meshes at a predetermined interval; It is intended to provide a half PC slab for field casting having a wide width is composed of a power generating stage mesh member comprising a.

In addition, the power generating end mesh member is characterized in that the tension material is embedded in the longitudinal direction of the half PC slab body is configured to provide a half-PC slab for in-site casting having a wide width.

In addition, each end shear reinforcing member has a lower end portion embedded in the half PC slab body and protrudes upward at a predetermined section from both end portions in the longitudinal direction of the upper portion of the half PC slab body, respectively. In addition, it aims to provide a wide-width half PC slab for field casting.

In addition, the pair of meshes are constructed in the power generating end mesh member, characterized in that embedded in the half PC slab body diagonally so as to form a wide interval between the upper portion and the narrow interval between the lower half, PC having a wide width To provide a slab.

In addition, the pair of mesh body is composed of a power generation stage mesh member is characterized in that the engaging jaw bent at a predetermined position in the height direction is formed so that the interval between the upper portion and the interval between the lower portion is formed narrow and has a wide width We want to provide a half PC slab for pouring.

In addition, the mesh is configured to produce a half-powered slab for field casting is composed of a power generating end mesh member, characterized in that the lower end portion is bent buried in the half PC slab body is formed anchor anchor jaw.

In addition, the anchor jaw is composed of a power generating end mesh member, characterized in that fixed to the longitudinal and width reinforcing reinforcing bar inside the half PC slab body, and to provide a half-PC slab for site casting having a wide width.

In addition, the shear composite member is protruded to a predetermined length above the longitudinal phosphorus end mesh member between the pair of meshes of the longitudinal phosphorus end mesh member so as to be embedded in the half PC slab body from the lower end to the predetermined height so that the shear synthesis member is formed into the hypogenetic end mesh member. It is intended to provide a half PC slab for in-site pouring having a wide width is composed of the power generating end mesh member, characterized in that formed in the entire section or a portion of the central section or a section of the end.

In addition, concrete is placed in the placing space of the pair of meshes of the longitudinal generating stage mesh member and the width generating stage mesh member so that the longitudinal rib and the width rib are integrally formed with the half PC slab body. It is intended to provide a half PC slab for field casting with a mesh member and having a wide width.

In addition, the compression fixation dispersion reinforcing bar is embedded in the longitudinal direction of the half PC slab body so that a predetermined length protrudes at both ends in the longitudinal direction of the half PC slab body, the compression fixing dispersion reinforcing bar is embedded height and half PC slab of the half PC slab body The power generating end mesh member is configured to be formed to have the same height of the exposed portion at the longitudinal end of the main body, or bent to form a high height of the exposed portion at the longitudinal end of the half PC slab main body. It is intended to provide a half PC slab for field casting with a wide width.

In addition, joints are formed so that each of the width direction both ends of the half PC slab main body protrudes a predetermined length, and the upper edge of the width direction both ends of the half PC slab main body is cut a portion to form a joint surface. It is intended to provide a half PC slab for field casting with a mesh member and having a wide width.

In addition, a generator tie mesh member is constructed, wherein a shear tie is formed at both ends in the longitudinal direction of the generator mesh member so as to intersect the shear synthesis member between the pair of meshes of the longitudinal generator stage mesh member. It is an object of the present invention to provide a half PC slab for field casting.

In addition, the shear tie is composed of a power generating end mesh member, characterized in that the one side is intersected with the shear synthesis member, the other side is configured to protrude to the outside of the end of the longitudinal phosphorus end mesh member for widespread field casting We want to provide a half PC slab.

In addition, (a) installing the formwork; (b) reinforcing longitudinal and transverse reinforcing bars in the formwork; (c) installing a mesh and a gap retaining material in the formwork to form a longitudinal phosphorus end mesh member and a width phosphorus end mesh member; (d) forming a half PC slab body by pouring concrete into the formwork; and to provide a method for manufacturing a half PC slab for field casting having a wide width, comprising a power generating end mesh member comprising a; do.

In addition, after step (d), (e) placing concrete in the placing space of the pair of longitudinal phosphorous end mesh members and the widthwise phosphorous end mesh member to form longitudinal ribs and width ribs; It is intended to provide a method of manufacturing a half-PC slab for field casting having a wide width is composed of a power generating stage mesh member characterized in that it is added.

The generating stage mesh member of the present invention is composed of a half PC slab for field casting having a wide width and its manufacturing method is a generating stage mesh member having a form function for forming a rib on the upper part of the slab body and a drawing or shear resistance function. By protruding and constructing in both directions, the concrete is easily placed on the generating stage mesh member to form bidirectional ribs on the upper part of the slab body, and the strength of the span direction as well as the width direction is increased even when the width is larger than the span. It has a very useful effect to reduce construction cost, weight and manufacturing cost.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a perspective view of a half PC slab for field casting having a wide width in which the power generating stage mesh member of the present invention is constructed.
2 is a cross-sectional view cut along the width direction of FIG. 1.
3 is a perspective view of another embodiment of FIG.
4 is a cross-sectional view of various embodiments taken along the length of FIG. 3.
5 is a cross-sectional view cut along the width direction of FIG. 3.
FIG. 6 is a diagram illustrating another embodiment of FIG. 5.
7 is a perspective view of an embodiment in which the rib of the present invention is formed.
FIG. 8 is a cross-sectional view sequentially illustrating a method of manufacturing a half PC slab for field casting having a wide width, in which a power generating stage mesh member of the present invention is formed.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention according to a preferred embodiment in detail.

The half-powered slab for field casting, which is composed of the power generating stage mesh member of the present invention, has a form function for forming ribs on the upper part of the slab body and a drawing or shear resistance function when fabricating a wide half-PC slab. The power generating end mesh member protrudes to be configured in both directions so that the concrete is placed on the power generating end mesh member to form a bidirectional rib.

FIG. 1 is a perspective view of a half PC slab for field casting having a wide width in which a power generating stage mesh member of the present invention is formed, and FIG. 2 is a cross-sectional view of the width direction of FIG. 1.

As shown in FIG. 1, the half PC slab 1 for site-pouring, which is composed of the power generating stage mesh member of the present invention and has a wide width, has a half PC slab body 10 of a predetermined size and a half PC slab body ( It is formed to protrude on the upper portion 10 and includes a longitudinal phosphorous end mesh member 20a and a widthwise phosphorous end mesh member 20b which are respectively formed in the longitudinal direction and the width direction of the half PC slab body 10.

The longitudinal phosphorus end mesh member 20a is formed in the entire length of the half PC slab body 10, and the widthwise phosphorus end mesh member 20b is a part of the overall width and width of the half PC slab body 10. It may be formed only in a section of the section or end, and when the widthwise generation stage mesh member 20b is formed only in a portion of the width direction end portion may be formed outside the longitudinal generation stage mesh member 20a. .

Half PC slab body 10 is made of a predetermined size wider than the conventional PC slab, the thickness of the half PC slab body 10 may be formed in various ways, it is preferably formed in more than 50mm, Figure 2 As in, the reinforcing bar (11) 12 in the longitudinal direction and the width direction within the thickness of the half PC slab body 10 is arranged to be arranged in a lattice.

The half PC slab body 10 has a longitudinally-generated end mesh member 20a both in the longitudinal direction and in the width direction in order to form ribs by additionally placing concrete in the field in the longitudinal direction as well as in the width direction on the upper surface. The widthwise phosphorous end mesh member 20b is configured.

The longitudinal phosphorous end mesh member 20a and the widthwise phosphorous end mesh member 20b are formed to intersect with each other, and a plurality of longitudinally-generated end mesh members 20a may be formed in parallel to be spaced apart by a predetermined distance.

The longitudinal phosphorous end mesh member 20a and the widthwise phosphorous end mesh member 20b may be generally formed in the same or different shapes in consideration of the convenience of manufacturing, and a pouring space is formed at a center spaced at a predetermined interval. The pair of meshes 21 and the pair of meshes 21 are composed of a plurality of gap retaining members 22 connecting the pair of meshes 21 and 21 so as to be maintained at a predetermined interval.

The mesh 21 may be made of various well-known products such as metal lattice, metal mesh with a lattice mesh, and as shown in FIG. 2, embedded in the half PC slab body 10 to a predetermined height from a lower end thereof. Paired to increase adhesion to post-cast concrete and resist vertical drawing and shear.

Such a pair of meshes 21 may be configured with a plurality of spacing retainers 22 at regular intervals so that spacing may be maintained when concrete is placed therein. The spacer 22 is connected to the pair of meshes 21 by a variety of known materials such as bolts and rebars to maintain a predetermined distance.

In addition, as shown in FIG. 2, the tension member 90 made of a stranded wire, a steel rod, or the like is embedded in the longitudinal direction of the half PC slab main body 10 so that the bending force is applied by applying a compressive force to the half PC slab main body 10. The strength can be increased.

3 is a perspective view of another embodiment of FIG. 1, FIG. 4 is a cross-sectional view of various embodiments taken along the length direction of FIG. 3, and FIG. 5 is a cross-sectional view of the width direction of FIG. 3.

Particularly, in the present invention, the half PC slab main body 10 extends from the lower end to a predetermined height so as to protrude to a predetermined length above the longitudinal generator stage mesh member 20a between the pair of meshes 21 of the longitudinal generator stage mesh member 20a. ), A pair of meshes 21 are formed in the concrete and longitudinal phosphorus end mesh member 20a and widthwise phosphorus end mesh member 20b which are placed therein. It may be to act as a shear integrated with the concrete being poured in.

 The shear composite member 30 may be formed at the entire length of the longitudinal phosphorus end mesh member 20a as needed, may be formed only in a portion of the central portion, or may be formed only in a portion of the end portion.

In particular, as shown in Figures 3a, 5 and 4a (a), the shear composite member 30 is used to arrange the bottom or the bottom PC slab 10 to a certain depth by placing a planar or three-dimensional truss muscle in the longitudinal direction As shown in FIG. 4a (b), a dowel bar having a shape in which the bar is bent may be embedded at regular intervals, or as shown in FIG. 4b (a), a member bent in a U shape may be used. In addition, as shown in Fig. 4B (b), it is also possible to use a member bent in a waveform.

In addition, as shown in Figure 3b, the end shear reinforcing member 70 has a lower end portion of the half PC slab body 10 is embedded in a predetermined section from both ends in the longitudinal direction of the upper portion of the half PC slab body 10, respectively. It is also possible to increase the resistance of the in-plane shear force of the half PC slab 1 end.

The end shear reinforcing member 70 may be used to use the truss bar as shown, by using a dowel bar of a shape bent the reinforcing bars, or by using a member bent in a U-shaped, It is also possible to use a member bent into a waveform.

In addition, as shown in FIGS. 4C and 4D, the shear tie bars 80 are formed at both ends in the longitudinal direction of the power generating end mesh member 20a, thereby concrete is poured into the placing space of the pair of meshes 21. When the longitudinal ribs 40a and the width ribs 40b are formed integrally with the PC slab body 10, the shear tie 80 can reinforce the ribs by shear composite behavior such as strut-tie. Can be.

Such a shear tie 80 is configured to intersect the shear synthesis member 30 between a pair of meshes 21 of the longitudinal phosphorus end mesh member 20a, so that the shear synthesis function at the end can be performed. As shown in Figure 4c, it may be configured so as not to protrude from the end, as shown in Figure 4d, one side is to cross the shear synthesis member 30, the other side of the end of the longitudinal phosphorous end mesh member (20a) It can be configured to protrude outward to add a compression fixing function at the end.

The shape of the shear tie 80 may be to use a wire rod, a bent rebar, and the like of a predetermined length, as shown, may be formed to be u-shaped by bending the end of one side.

FIG. 6 is a diagram illustrating another embodiment of FIG. 5.

2 and 5, the pair of meshes 21 constituting the longitudinal phosphorous end mesh member 20a and the widthwise phosphorous end mesh member 20b are formed with a narrow upper space and a wider space between the lower portions. 6 (a), to be embedded in the half PC slab body 10 in an oblique line so as to form a wide interval between the upper portion and a narrow interval between the lower portion, as in Figure 6 (a), or Likewise, the mesh 21 has a gap between the upper part and a narrowing gap between the lower part so that the engaging jaw 211 bent at a predetermined position in the height direction is formed, thereby increasing the compression area and effectively reducing the vertical drawing or shearing. You can resist.

In particular, as shown in Figure 6b, the net body 21 is bent at the lower end portion embedded in the half PC slab body 10 to form an anchor jaw (21a) can be easily fixed while the position of the net body 21 is drawn Can be resisted by the anchorage effect.

The anchor jaw 21a may be formed by bending the lower end of the net body 21 inward or outward, and the longitudinal and / or widthwise reinforcing bars 11 and 12 inside the half PC slab body 10. It can be fixed by using a variety of known means such as welding, assembly band.

As shown in FIGS. 3 and 4, the compression-fixed dispersion reinforcing bar 50 is embedded in the longitudinal direction of the half PC slab body 10 so as to protrude a predetermined length at both ends in the longitudinal direction of the half PC slab body 10. The half PC slab body 10 may be distributed resistance to compressive stress at the end due to the bending behavior with the topping concrete to be additionally poured.

In particular, the compression set dispersion dispersion reinforcing bar 50 is bent to form a high height of the exposed portion at the longitudinal end of the half PC slab body 10, so that the bent portion is embedded in the portion subjected to the end bending compression stress It is possible to more effectively disperse the compressive stress.

In addition, the half PC slab main body 10 has the upper edges of both ends of the width direction of the half PC slab main body 10 so that a part of the half PC slab main body 10 is cut so that the joint surface 19 is formed. The half PC slab (1) for pouring and the generating stage mesh member are formed, and the thickness is increased in the joint surface with the topping concrete, which is placed on the upper part between the wide-spread half-PC slab (1) having a wide width. In order to prevent water leaks, make a thick space where concrete is to be poured.

In particular, the half PC slab main body 10 has a widthwise end portion of the half PC slab main body 10 configured such that the joint back muscle 60 is configured to protrude a predetermined length, respectively, when the half PC slab main body 10 is continuous in the width direction. 10 and the joint back muscle 60 can be embedded in the upper part of the joint part of the half PC slab main body 10 at the time of concrete placement, and the width direction strength and continuity can be improved.

7 is a perspective view of an embodiment in which the rib of the present invention is formed.

As shown in FIGS. 6 and 7, the concrete is poured into a placing space between the pair of meshes 21 of the longitudinal phosphorous end mesh member 20a and the widthwise phosphorous end mesh member 20b, thereby forming a half PC slab body ( The longitudinal rib 40a and the widthwise rib 40b may be integrally formed with 10).

As described above, in the present invention, when forming ribs on the upper part of the half PC slab main body 10, a separate form or the like is not required, and a pair of longitudinal phosphorus end mesh members 20a and width phosphorus end mesh members 20b are provided. Function of in-plane shearing or pullout resistance with topping concrete which is post-installed during concrete post-installation while acting as a form to form the longitudinal ribs 40a and the width-side ribs 40b. You can do it.

FIG. 8 is a cross-sectional view sequentially illustrating a method of manufacturing a half PC slab for field casting having a wide width, in which a power generating stage mesh member of the present invention is formed.

First, as shown in Figure 8a, the formwork (2) is installed (a).

The formwork 2 is for forming the half PC slab body 10 and may be manufactured differently according to the size and shape of the half PC slab body 10.

Thereafter, as shown in FIG. 8B, longitudinal and widthwise reinforcing bars 11 and 12 are disposed in the formwork 2 (b).

The longitudinal and widthwise reinforcing bars 11 and 12 may be reinforced in advance, and the tension member 90, the compression settling dispersion bar 50, and the joint reinforcement bar 60 may be reinforced in the formwork as necessary.

Subsequently, as shown in FIG. 8C, the mesh 21 and the spacer 22 are installed to form the longitudinal phosphorus end mesh member 20a and the width phosphorus end mesh member 20b (c).

The spacing member 22 is connected to the pair of meshes 21 to maintain a constant spacing, it is to be installed on the protruding portion of the formwork 2 of the mesh 21.

Subsequently, as shown in FIG. 8D, concrete is poured into the formwork 2 to form the half PC slab body 10 (d).

As described above, steps (c) and (d) may be performed in order, and step (d) may be performed first and step (c) may be performed.

As such, if the step (d) proceeds first and the step (c) proceeds, the pair of meshes 21 are not cured from the lower end to a certain height before being cured by placing concrete in the formwork 2. It is to cure concrete after positioning it to be embedded in the concrete inside.

The production stage mesh member of the present invention is constructed as described above, and it is possible to manufacture a half PC slab 1 for site-pouring having a wide width, and further, as shown in FIG. 8E, the longitudinal generation stage mesh member 20a. And it is possible to cast the concrete in the width of the power generating stage mesh member 20b, so that the longitudinal rib 40a and the width rib 40b can be formed.

Particularly, the half-powered slab for field casting having the wide width is constructed of the above-described power generating end mesh member of the present invention and is disposed adjacent to each other between the girder and the girder, and the power generating end mesh member is configured and has a wide width. The topping concrete is poured on top of the half-PC slab 1 for field casting to form a slab.

That is, the half PC slab (1) for field casting having the wide width of the power generating stage mesh member of the present invention is placed in the formwork (2) to form a primary concrete slab to form a half PC slab body (10) Step, the secondary concrete for placing concrete in the interior of the longitudinal phosphorous end mesh member 20a and the widthwise hydroelectric end mesh member 20b, so that the longitudinal ribs 40a and the widthwise ribs 40b are formed. The half PC slab (1), which is composed of the pouring stage and the generating stage mesh member and has a wide width, is disposed adjacent to each other between the girder and the girder, and the generating stage mesh member is composed of the wide placing half. It consists of a tertiary concrete placing step of forming a slab by placing a topping concrete on top of the PC slab 1 so that the staged manufacturing and construction is performed.

The generation stage mesh member of the present invention as described above, the half PC slab for field casting having a wide width is the generation stage mesh member protrudes to have a die function and a pull or shear resistance function to form a rib on the top of the slab body To be constructed in both directions so that the concrete can be easily placed on the generating stage mesh member to form a bi-directional rib on the upper part of the slab body so as to increase the strength in the span direction as well as the width direction even when the width is larger than the span. It is very useful effect to reduce construction cost, weight and manufacturing cost.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art may make various modifications and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The invention is not limited by the invention as such variations and modifications but only by the claims appended hereto.

1: Half PC slab for in-situ construction where the power generating stage mesh member is composed
10: half PC slab body
11: longitudinal rebar
12: widthwise rebar
20a: longitudinal phosphorous end mesh member
20b: widthwise generation stage mesh member
21: network
22: spacing material
30: shear composite member
40a: longitudinal rib
40b: widthwise rib
50: compression set dispersing rebar
60: joint back muscle
70: end shear reinforcing member
80: shear tie
90: tension material

Claims (15)

A half PC slab main body 10 disposed in a lattice within the thickness of the reinforcing bars 11 and 12 in the longitudinal direction and the width direction therein;
Consists of a pair of meshes 21 to form a pour space at the center spaced apart at regular intervals formed in the upper direction of the half PC slab body 10 in the longitudinal direction and the width direction, and half PC slab body from the lower end to a predetermined height It is formed embedded in the (10), maintaining a plurality of gaps connecting the pair of meshes 21 in the exposed portion of the upper portion of the half PC slab body 10 so that the pair of meshes 21 are maintained at a constant interval A longitudinal phosphorous end mesh member 20a and a widthwise phosphorous end mesh member 20b formed with an ash 22 to increase the strength in the span direction and the width direction;
Shear tie 80 at each of both ends of the longitudinal end of the power generating end mesh member 20a so as to intersect with the shear synthesis member 30 between the pair of meshes 21 of the longitudinal power generating end mesh member 20a; A half PC slab for field casting having a wide width, wherein the power generating stage mesh member is formed. The method according to claim 1,
A half PC slab for field casting having a wide width, comprising a power generating end mesh member, wherein the tension member 90 is embedded in the longitudinal direction of the half PC slab body 10. The method according to claim 1,
The end shear reinforcing member 70 has a lower end portion embedded in the half PC slab main body 10 and protrudes upward at predetermined intervals from both ends in the longitudinal direction of the upper part of the half PC slab main body 10. Half PC slab for in-situ casting with a wide width. The method according to claim 1,
The pair of meshes 21 are constructed with a mesh generating end mesh member, characterized in that embedded in the half PC slab body 10 in a diagonal line so that the interval between the upper portion is wider and the interval between the lower portion is formed narrow and has a wide width Half PC slab for pouring. The method according to claim 1,
The pair of meshes 21 is composed of a power generating end mesh member, characterized in that the engaging jaw 211 is bent at a predetermined position in the height direction is formed so that the interval between the upper portion and the interval between the lower portion is formed narrow Half PC slab for field casting with width. The method according to claim 1,
The net body 21 is a half PC slab for field casting having a wide width, which is composed of a power generating end mesh member, characterized in that an anchor jaw 21a is formed by bending a lower end embedded in the half PC slab body 10. The method according to claim 6,
The anchor jaw 21a is constructed of a power generating mesh mesh member which is fixed to the longitudinal and widthwise reinforcing bars 11 and 12 inside the half PC slab main body 10, and has a wide width in place. PC slab. The method according to claim 1,
Between the pair of meshes 21 of the longitudinal generator stage mesh member 20a protrudes a predetermined length above the longitudinal generator stage mesh member 20a and is embedded in the half PC slab body 10 from the lower end to a predetermined height. The shear generating member 30 is formed in the entire section or the center portion of the portion or the end portion of the end portion of the power generating end mesh member 20a to be formed, and the half for field casting having a wide width PC slab. The method according to claim 1,
Compression-fixed dispersion reinforcing bar 50 is configured to be embedded in the longitudinal direction of the half-PC slab body 10 so that a predetermined length protrudes at both ends of the longitudinal direction of the half PC slab body 10, the compression-fixing dispersion reinforcing bar 50 is a half PC The embedded height of the slab body 10 and the height of the portion exposed at the longitudinal end of the half PC slab body 10 are the same, or the height of the portion exposed at the longitudinal end of the half PC slab body 10. The half-powered slab for field casting having a wide width is composed of a power generating end mesh member, characterized in that the bending is formed to be formed high. The method according to claim 1,
The joint back muscle 60 is configured so that the widthwise both ends of the half PC slab body 10 protrude a predetermined length, respectively, and the upper edges of the widthwise both ends of the half PC slab body 10 are partially cut to form a joint surface 19. A half PC slab for field casting having a wide width, wherein the power generating end mesh member is formed. delete The method according to claim 1,
Shear tie 80 is one side is intersected with the shear synthesis member 30, the other side is composed of the generating end mesh member, characterized in that configured to protrude to the outside of the end of the longitudinal phosphorus end mesh member (20a) Wide width, half PC slab for field casting. The method according to claim 1,
Concrete is poured into the placing space of the pair of meshes 21 of the longitudinally-generated end mesh member 20a and the widthwise-generated end mesh member 20b to integrally form the longitudinal rib 40a integrally with the half PC slab body 10. A half PC slab for field casting having a wide width, wherein the power generating end mesh member is formed, and a widthwise rib 40b is formed. In the method of manufacturing a half PC slab for in-site casting having a wide width is composed of the power generating stage mesh member of any one of claims 1 to 10,
(a) installing the formwork 2;
(b) reinforcing longitudinal and transverse reinforcing bars (11) (12) in the formwork (2);
(c) installing the mesh body 21 and the spacing member 22 in the formwork 2 to form a longitudinal phosphorus end mesh member 20a and a width phosphorus end mesh member 20b;
(D) forming a half PC slab body 10 by pouring concrete into the formwork (2); half-powered slab for field casting having a wide-width generating stage mesh member comprising a; How to make. The method according to claim 14,
after step (d),
(e) Concrete is poured into the placing space of the pair of meshes 21 of the longitudinally-generated end mesh member 20a and the widthwise-generated end mesh member 20b to extend the longitudinal rib 40a and the widthwise rib 40b. The method of manufacturing a half PC slab for on-site casting having a wide width, wherein the power generating end mesh member is configured to be added.

Images