JP6159087B2 - Dwelling floor structure - Google Patents

Description

  The present invention relates to a dwelling floor structure that makes it possible to change the position of a water facility.

  In recent residences, for example, even after a housing of a reinforced concrete apartment complex is completed, one that allows a change in the layout of each dwelling unit is provided. Such a floor plan of the dwelling unit can be changed with greater flexibility as a whole by making it possible to change the position of water-related equipment such as bathrooms, toilets, washrooms, and kitchens that require piping equipment. Become.

  To change the position of the water supply equipment, it has a slab that constitutes a normal floor surface and a lower slab that is one level lower than this, and piping is arranged along the upper surface of this lower slab. There is an invention of a dwelling floor structure that enables the movement of water-based equipment within the range of the lower slab by installing (for example, cited document 1).

  In this dwelling floor structure, the low-level slabs are constructed to have a full width in the direction of girder in each dwelling unit and a certain range in the direction of beams. It is also possible to change. Thereby, the freedom degree of the floor plan change in each dwelling unit becomes very large.

JP 2005-180012 A

  However, in the above conventional dwelling floor structure, the lower slabs are provided in a wide range covering the full width of the girder direction, etc. A concave portion due to the lower slab is exposed in a wide range on the other side of the carry direction. For this reason, for example, in the case of a dwelling unit that employs a direct floor construction method, it is necessary to construct a floor portion that is flush with the upper surface of a normal slab in the concave portion. For this reason, there existed a problem that construction cost increased.

  On the other hand, for bathrooms and the like, troubles such as noise and vibration are likely to occur between the upper and lower dwelling units. Therefore, in order to prevent such troubles, it is preferable to align the positions in the horizontal direction in the upper and lower dwelling units. . In other words, some water facilities are preferably fixedly installed at an optimum position without freely changing the installation position.

  The present invention has been made in view of the above circumstances, and by ensuring that only water-related equipment other than the water-related equipment that is preferably installed in a fixed manner can be moved, an optimal floor plan with less trouble can be secured. However, it is an object of the present invention to provide a dwelling floor structure that can improve the degree of freedom in changing the overall floor plan and can reduce the construction cost.

In order to solve the above-mentioned problem, the invention according to claim 1 is a dwelling unit floor structure for making it possible to change the position of the water supply facility in each dwelling unit arranged above and below, and constitutes a normal floor. A reference slab and a lower slab that forms a recessed region one step lower than the reference slab, and the recessed region includes a main recessed portion disposed in substantially the same horizontal direction in each of the upper and lower dwelling units. And at least one branch recess extending from the main recess to the outside of the main recess, and the main recess should be fixed in a horizontal position in each of the upper and lower dwelling units in the water supply facility. that the specific water around has a horizontal extent which is capable of installing only the equipment, the main recess is arranged on one side of the girder bound direction of the dwelling unit, the branch recess is at least One is above The width and depth of the door extend beyond the center of the girder direction so as to enter the other side and allow the installation of piping for the water-related equipment other than the specific water-related equipment. is set, as the water around equipment other than the specific water around facilities, it is characterized in Kitchingaa Rukoto.

The invention according to claim 2 is the precast concrete according to claim 1 , wherein each of the low-order slab and the reference slab and the specific reference slab located in the direction of the low-order slab has a PC steel wire. The bottom part is comprised by this, and the upper surface part is comprised by the concrete cast | placed after arrange | positioning the reinforcing bar on the upper side of each precast concrete.

  In addition, a specific reference | standard slab is located in the digit direction of a low-order slab among reference | standard slabs. That is, the specific reference slab has an upper surface that is the same height as the reference slab. Moreover, the precast concrete which has PC steel wire is reinforced concrete of the factory manufacture which introduced the prestressed by PC steel wire.

The invention according to claim 3 is the invention according to claim 2 , wherein each of the precast concretes has a plurality of ridges extending linearly on the flat plate portion and arranged in parallel to each other, It has composition which has PC steel wire provided so that it may extend in the direction in which each said ridge part extends in the portion corresponding to each ridge part, and the above-mentioned specific standard slab side and low-order slab side Each precast concrete is installed so that the direction in which the above-mentioned protruding ridges extend is directed in the direction of the direction, and the ends of the protruding ridges are positioned so as to overlap each other vertically. The precast concrete on the specific standard slab side has a cutout portion in a shape obtained by removing a portion overlapping the precast concrete on the low-order slab side, among the flat plate portions adjacent to the convex portions, A plurality of bars are arranged on the upper side of each precast concrete on the specific standard slab side and the low-order slab side in the direction of beam and the direction between the beams, and the parts corresponding to the notches are on the specific standard slab side and the low-order slab side. A reinforcing bar formed so as to surround the plurality of reinforcing bars in the inter-beam direction is provided.

The invention according to claim 4 is the invention according to claim 3 , wherein the upper surface of the flat plate portion adjacent to the respective convex strip portions in the precast concrete on the specific reference slab side is arranged on the upper surface of the convex strip portion. On the other hand, an upper first rebar and a lower first rebar extending in the direction of the carry are provided on the upper side and the lower side, respectively, and the upper first rebar and the lower first rebar are located in the notch portion. It is formed so as to bend downward at a portion corresponding to the tip portion of the ridge, and to extend downward along a portion extending in the vertical direction on the front end side of the notch in the gluteal muscle, On the upper side of the flat plate portion adjacent to the ridges in the precast concrete on the lower slab side, the upper second rebar extending in the direction of the upper and lower sides with respect to the upper surface of the ridges. And subordinate 2 rebars are provided, and the upper second rebar and the lower second rebar are bent upward at a portion corresponding to the innermost part of the notch in the precast concrete on the specific reference slab side, It is characterized by being formed so as to extend upward along a portion extending in the vertical direction on the innermost side of the notch portion.

  According to the first aspect of the present invention, the recessed area is constituted by the low-level slab, the recessed area is further constituted by the main recessed portion and the branched recessed portion, and the main recessed portion is disposed at substantially the same part in the horizontal direction in the upper and lower dwelling units. In addition, since it is configured to have a horizontal spread that can be installed only in the specific water facilities that should be fixed in the horizontal direction, the specific water devices are installed horizontally in the upper and lower dwelling units. Can be prevented from being arranged at different positions. That is, it is possible to secure an optimal floor plan that can prevent the occurrence of troubles such as noise and vibration as much as possible.

  In addition, for water-side equipment other than the specific water-side equipment, it is possible to install a pipe using the main concave portion and to extend the branch concave portion by arranging it at each position adjacent to the main concave portion. By installing in the range to perform, it becomes possible to install piping using the said branch recessed part and the main recessed part. In other words, the water facilities other than the specific water facilities can be changed to various positions, thereby improving the degree of freedom in changing the overall floor plan in each dwelling unit.

  Furthermore, since the branching recess can be limited to the minimum width and depth that enables installation of the piping, even if the direct flooring method is adopted, the man-hours for configuring the floor to be flat Can be reduced. That is, the construction cost can be reduced.

The main recess is arranged on one side of the girder bound direction in dwelling unit, at least one branch recess extends to beyond the middle digit bound direction in dwelling unit enters on the other side, the specific When the water-side equipment is placed on one side of the girder direction in the dwelling unit, water-side equipment other than the specific water-side equipment can be installed on the other side of the girder direction and It can also be installed at a position adjacent to the main recess on one side of the direction. For example, when a specific water-equipment such as a bathroom, toilet, and a washroom that has a function of installing a washing machine is fixedly installed in a main recess on one side of the girder direction, other than a specific water-equipment such as a kitchen For example, the water-surrounding facility can be moved to the other side in the traveling direction across the corridor, or to a position adjacent to the main recess on one side in the traveling direction.

According to the invention described in claim 2 , for the specific reference slab that is the low-order slab and the reference slab and is adjacent to the direction of the low-order slab, the bottom surface thereof is constituted by the precast concrete having the PC steel wire, Since the upper surface portion is composed of concrete placed after placing reinforcing bars on the upper side of each precast concrete, the strength of the slab having a concave region can be improved.

  Therefore, since it is not necessary to reinforce, for example, a small beam at the boundary between the lower slab and the specific reference slab, it is possible to prevent the reinforcing portion such as the small beam from being exposed to the ceiling surface. That is, it is possible to prevent problems such as the appearance of the ceiling surface from being deteriorated or the height of the ceiling surface from being sufficiently secured by the reinforcing portion such as a small beam. Moreover, since a floor floor is unnecessary by comprising a bottom part by each precast concrete, construction cost can be reduced.

According to invention of Claim 3 , each precast concrete is installed so that the edge parts of each convex-line part may mutually overlap, and a notch part is provided in each flat plate part of the specific reference | standard slab in the overlapping part. In the part corresponding to the notch, there is provided a reinforcing bar formed so as to surround a plurality of reinforcing bars in the inter-beam direction located on the specific standard slab side and the low level slab side, so the low level slab and the specific standard slab A strong beam made of reinforced concrete having a plurality of reinforcing bars extending in the inter-beam direction and a plurality of reinforcing bars surrounding the reinforcing bars can be formed at the boundary portion of the steel plate. Therefore, it is possible to improve the strength of the boundary portion between the lower slab and the specific reference slab.

According to the invention described in claim 4 , the upper first reinforcing bar and the lower first reinforcing bar that extend in the direction of the carry are provided on the upper side of each flat plate portion of the precast concrete on the specific reference slab side, The lower first rebar is bent downward at the portion corresponding to the tip of the ridge, and is extended downward along the front end portion of the cutout portion of the rebar, and the precast concrete on the lower slab side The upper second reinforcing bar and the lower second reinforcing bar extending in the direction of the carry are provided on the upper side of each flat plate part, and the upper second reinforcing bar and the lower second reinforcing bar are bent upward at a portion corresponding to the innermost part of the notch portion. Made of reinforced concrete with multiple reinforcing bars in the inter-beam direction and multiple reinforcing bars surrounding it. Low-order slur against strong beams And it is possible to improve the coupling strength of the specific criteria slab. Therefore, the strength of the boundary portion between the low-order slab and the specific reference slab can be further improved.

It is a horizontal sectional view of the predetermined floor of the apartment house which shows the dwelling unit floor structure shown as one example of the present invention about each dwelling unit. It is a figure which shows the same dwelling unit floor structure, Comprising: (a) is a horizontal sectional view of the dwelling unit which shows the floor plan in the state which has arrange | positioned the water circumference equipment in both the one side and the other side of a carry direction, (b ) Is a horizontal cross-sectional view of a dwelling unit showing a floor plan in which water facilities are arranged only on one side of the carry direction, and (c) is a horizontal cross-sectional view of a dwelling unit showing a reference slab, a low-level slab and a specific reference slab. . It is a figure which shows the dwelling unit floor structure, Comprising: It is explanatory drawing which shows the part with which the precast concrete by the side of a specific reference | standard slab and the precast concrete by the low-order slab side overlap up and down. It is a figure which shows the connection part of the specific reference | standard slab and low rank slab in the same dwelling floor structure, Comprising: (a) is a longitudinal cross-sectional view of the state which has arrange | positioned all the reinforcing bars, (b) is B- of (a). It is sectional drawing which follows a B line. It is a figure which shows the connection part of the specific reference | standard slab in the same dwelling floor structure, and a low-order slab, Comprising: (a) is a longitudinal cross-sectional view which shows the state which has arrange | positioned the reinforcing bar above each precast concrete, (b) is ( It is sectional drawing which follows the BB line of a). It is a figure which shows the connection part of the specific reference | standard slab in the same dwelling floor structure, and a low-order slab, Comprising: (a) arrange | positions a reinforcing bar on the upper side of each precast concrete, and is upper 1st on the upper side of the flat plate part of each precast concrete. It is a longitudinal cross-sectional view which shows the state which has arrange | positioned the reinforcing bar and the upper 2nd reinforcing bar, (b) is sectional drawing which follows the BB line of (a). It is a figure which shows the connection part of the specific reference | standard slab in the same dwelling floor structure, and a low-order slab, Comprising: (a) arrange | positions a reinforcing bar on the upper side of each precast concrete, and is lower 1st on the upper side of the flat plate part of each precast concrete. It is a longitudinal cross-sectional view which shows the state which has arrange | positioned the reinforcing bar and the lower 2nd reinforcing bar, (b) is sectional drawing which follows the BB line of (a). It is a figure which shows the connection part of the specific standard slab in the same dwelling floor structure, and a low level slab, Comprising: (a) arranges a reinforcing bar on the upper side of each precast concrete, and corresponds to the notch part of the precast concrete on the specific standard slab side It is a longitudinal cross-sectional view which shows the state which has arrange | positioned the gluteal muscle in the site | part to do, (b) is sectional drawing which follows the BB line of (a).

  The form for implementing this invention is demonstrated in detail based on one Example.

  The dwelling unit floor structure 1 shown in this embodiment constitutes a floor portion of each dwelling unit A1 of a reinforced concrete apartment house A, as shown in FIG. This apartment house A includes at least a plurality of dwelling units A1 in the vertical direction and a plurality of dwelling units A1 in the horizontal direction (six units in this example) adjacent to each other.

  The dwelling unit floor structure 1 is designed to improve the degree of freedom of floor plan change in each dwelling unit A1 by enabling the location of water-related equipment to be changed after the reinforced concrete structure of the housing complex A is completed. And a standard slab 2 constituting a normal floor and a low-order slab 3 constituting a recessed region 4 that is one step lower than the standard slab 2.

  The concave region 4 is a portion indicated by cross hatching with a large interval in FIGS. 1 and 2 (c), and a main concave portion 4a disposed in substantially the same part in the horizontal direction in each of the upper and lower dwelling units A1, One branch recess 4b extending from the main recess 4a to the outside of the main recess 4a is provided. Note that a plurality of branch recesses 4b may be provided.

  As shown in FIG. 2, the main concave portion 4 a is a horizontal in which only the specific water-periphery equipment A <b> 2 that should fix the position in the horizontal direction in each of the upper and lower dwelling units A <b> 1 is installed. It has a spread of direction, and is arranged along the wall on one side in the carry direction in the dwelling unit A1. The main concave portion 4a is formed to have a quadrangular shape by a portion other than the branch concave portion 4b indicated by a halftone dot in the concave region 4.

  On the other hand, the branch recessed portion 4b is a portion indicated by a halftone dot portion in the recessed region 4, and extends from the main recessed portion 4a so as to enter the other side of the dwelling unit A1 so as to enter the other side. The width and the depth are set to enable installation of piping for the water-around facility A3 other than the water-around facility A2.

  The specific water surrounding facility A2 is a device that is likely to generate noise and vibration, and is prone to trouble in the upper and lower dwelling units A1. For example, the installation function of the bathroom A2a, the toilet A2b, and the washing machine shown in FIG. This includes the washroom A2c and the like. The water-surrounding equipment A3 other than the specific water-surrounding equipment A2 is equipment that is unlikely to generate noise and vibration, and that is less likely to cause trouble in the upper and lower dwelling units A1. For example, the kitchen A3a shown by single hatching in FIG. Applicable.

  In the reference slab 2, a portion of the reference slab 2 positioned in the direction of the lower slab 3 is a specific reference slab 5. The specific reference slab 5 corresponds to a portion indicated by cross-hatching at a narrower interval than the cross-hatching indicating the concave region 4 constituted by the lower slab 3 in FIG. 2 and flush.

  As shown in FIGS. 4 to 8, in the lower slab 3 and the specific reference slab 5, bottom portions 3 a and 5 a are configured by precast concrete 31 and 51 each having a PC steel wire C <b> 3. The upper surface portion 60 of the lower slab 3 and the specific reference slab 5 is constituted by concrete 68 that is placed after reinforcing bars 61 and 62 are disposed on the upper side of the respective precast concrete 31 and 51.

  As shown in FIGS. 3 and 4, each precast concrete 31, 51 has a plurality of ridges C <b> 2 extending linearly on the flat plate part C <b> 1 and arranged in parallel to each other, and each of the ridges. It has the structure which has PC steel wire C3 provided in the part corresponding to the part C2 so that it may extend in the direction where the said protruding item | line part C2 extends.

  And each precast concrete 31 and 51 is installed in the position where the edge parts of each said protruding item | line part C2 mutually overlap with each other while being installed so that the direction where each protruding item | line part C2 extends may be directed in the direction of a shift. It is installed in an arranged state.

  As shown in FIG. 3, the precast concrete 51 on the specific reference slab 5 side is a notch having a shape in which a portion overlapping the precast concrete 31 on the lower slab 3 side is removed from the flat plate portion C1 adjacent to each protrusion C2. Part C1a.

  As shown in FIGS. 4 and 5, the reinforcing bars 61 and 62 described above are in the direction between the reinforcing bars 61 and the beams that extend in the direction of the upper side of the precast concrete 31 and 51 on the specific reference slab 5 side and the lower slab 3 side. A plurality of reinforcing bars 62 extending in the direction are arranged. In particular, as shown in FIG. 5 (a), a plurality of (three in this example) reinforcing bars 62 in the inter-beam direction are arranged at a portion corresponding to the notch C1a.

  Further, as shown in FIGS. 4 and 8, the part corresponding to the notch C1a is formed as a square loop so as to surround a plurality of reinforcing bars 62 in the inter-beam direction in the specific reference slab 5 and the lower slab 3. A streak 63 is provided.

  Moreover, as shown in FIG.6 and FIG.7, the upper side and lower side with respect to the upper surface of the protruding item | line part C2 are shown in the upper side of the flat plate part C1 adjacent to each protruding item | line part C2 in the precast concrete 51 by the side of the specific reference | standard slab 5. An upper first reinforcing bar 64 (see FIG. 6) and a lower first reinforcing bar 65 (see FIG. 7) are provided on each of the sides.

  The upper first reinforcing bar 64 and the lower first reinforcing bar 65 bend downward at a portion corresponding to the tip of the protruding portion C2 located in the notch C1a, and the notch in the barb 63 (see FIGS. 4 and 8). It is formed so as to extend downward along the front / rear portion 63a extending in the vertical direction on the front side of C1a.

  On the other hand, on the upper side of the flat plate portion C1 adjacent to each protruding portion C2 in the precast concrete 31 on the lower slab 3 side, as shown in FIGS. 6 and 7, the upper side and the lower side with respect to the upper surface of the protruding portion C2. Each is provided with an upper second reinforcing bar 66 (see FIG. 6) and a lower second reinforcing bar 67 extending in the direction of girder.

  The upper second reinforcing bar 66 and the lower second reinforcing bar 67 are bent upward at a portion corresponding to the innermost part of the notch C1a of the precast concrete 51, and the notch C1a in the reinforcing bar 63 (see FIGS. 4 and 8). It is formed so as to extend upward along the innermost vertical part 63b extending in the vertical direction on the innermost side.

  4 to 8, reference numeral 7 denotes a mold for holding the concrete 68 placed on the precast concrete 31.

  In the dwelling floor structure 1 configured as described above, a recessed area 4 is configured by the lower slab 3, and the recessed area 4 is configured by a main recessed portion 4a and a branched recessed portion 4b. Since each dwelling unit A1 is arranged at substantially the same site in the horizontal direction, and is configured to have a horizontal spread that can be installed only with the specific water-around facility A2 that should fix the position in the horizontal direction. It is possible to prevent the specific water surrounding facility A2 from being arranged at different positions in the horizontal direction in the upper and lower dwelling units A1. Therefore, it is possible to secure an optimal floor plan that can prevent the occurrence of troubles such as noise and vibration in the upper and lower dwelling units as much as possible.

  Moreover, about the water surrounding equipment A3 other than the specific water surrounding equipment A2, it is possible to install a pipe using the main recessed portion 4a by arranging the water surrounding facilities A3 at positions adjacent to the main recessed portion 4a. By arranging in the extending range, it is possible to install a pipe using the branch recess 4b and the main recess 4a. That is, the water-surrounding equipment A3 other than the specific water-surrounding equipment A2 can be changed to various positions. Therefore, it is possible to improve the degree of freedom in changing the floor plan in each dwelling unit A1.

  Furthermore, since the branch recess 4b can be limited to a minimum width or the like that enables installation of piping, even when the direct floor construction method is adopted, the number of man-hours for configuring the floor surface to be planar Reduction can be achieved. That is, the construction cost can be reduced.

  In addition, the main recessed portion 4a is arranged on one side of the walking direction in the dwelling unit A1, and the branching recessed portion 4b extends beyond the center of the traveling direction in the dwelling unit A1 so as to enter the other side. The water-surrounding equipment A2 will be placed on one side of the girder direction in the dwelling unit A1, but the water-surrounding equipment A3 other than the specific water-surrounding equipment A2 may be installed on the other side of the girder direction. It can also be installed at a position adjacent to the main recess 4a on one side in the carry direction.

  That is, as shown in FIGS. 2 (a) and 2 (b), the main recessed portion on one side of the carry direction is provided with a specific water supply facility A2 such as a bathroom A2a, a toilet A2b, and a washroom A2c having a function of installing a washing machine. It will be fixedly installed on 4a, but the water-side equipment A3 other than the specific water-around equipment A2 such as the kitchen A3a, for example, on the other side of the girder direction across the corridor, one side of the girder direction It can also move to a position adjacent to the main recess 4a.

  Moreover, about the low-order slab 3 and the specific reference | standard slab 5 adjacent to this, each of those bottom face parts 3a and 5a is comprised by the precast concrete 31 and 51 which has PC steel wire C3, The upper surface part 60 is each precast concrete 31. , 51 is formed by the concrete 68 placed after the reinforcing bars 61 to 67 are arranged, so that the strength of the slab having the recessed region 4 can be improved.

  Therefore, since it is not necessary to reinforce by providing, for example, a small beam at the boundary portion between the lower slab 3 and the specific reference slab 5, the reinforcing portion such as the small beam is not exposed to the ceiling surface. That is, it is possible to prevent problems such as the appearance of the ceiling surface from being deteriorated or the height of the ceiling surface from being sufficiently secured by the reinforcing portion such as a small beam. In addition, since the precast concrete 31, 51 eliminates the need for temporary flooring, the construction cost can be reduced.

  Furthermore, each precast concrete 31 and 51 is installed so that the edge parts of each protruding item | line part C2 may mutually overlap, and notch part C1a is provided in each flat plate part C1 of the specific reference | standard slab 5 in the overlapping part. Since the barb 63 formed so as to surround the plurality of rebars 62 in the inter-beam direction located on the specific reference slab 5 side and the lower slab 3 side is provided in a portion corresponding to the notch C1a, the lower slab 3 A strong beam made of reinforced concrete including a plurality of reinforcing bars extending in the beam-to-beam direction and a plurality of reinforcing bars 63 surrounding the reinforcing bars can be formed at the boundary with the specific reference slab 5. Therefore, the strength of the boundary portion between the lower slab 3 and the specific reference slab 5 can be improved.

  Moreover, the upper first reinforcing bar 64 and the lower first reinforcing bar 65 extending in the direction of the girder are provided on the upper side of each flat plate portion C1 of the precast concrete 51 on the specific reference slab 5 side. The reinforcing bar 65 is bent downward at a portion corresponding to the tip of the ridge C2, and is extended downward along the front / rear part 63a of the front bar 63, and each flat plate of the precast concrete 31 on the lower slab 3 side. The upper second reinforcing bar 66 and the lower second reinforcing bar 67 extending in the direction of the girder are provided above the portion C1, and the upper second reinforcing bar 66 and the lower second reinforcing bar 67 are bent upward at the innermost part of the notch C1a. In this way, the reinforcing bar 63 is configured to extend upward along the innermost upper and lower part 63b of the reinforcing bar 63, and therefore, a reinforcing bar concrete including a plurality of reinforcing bars 62 in the inter-beam direction and a plurality of reinforcing bars 63 surrounding the reinforcing bar 62. The lower slab 3 and a specific reference slab 5 to rigid beams manufactured can be firmly connected. Accordingly, the lower slab 3 and the specific reference slab 5 can be formed integrally and have extremely high strength.

  In addition, about the reference | standard slab 2, you may make it comprise a lower surface part by the precast concrete which has PC steel wire, and arrange | positions a reinforcement after arrange | positioning a reinforcing bar on the upper side, and may comprise an upper surface part.

DESCRIPTION OF SYMBOLS 1 Residential floor structure 2 Standard slab 3 Low level slab 3a Bottom part 4 Concave area 4a Main recessed part 4b Branch recessed part 5 Specific reference | standard slab 5a Bottom part 31, 51 Precast concrete 60 Upper surface part 61 Reinforcing bar (rebar)
62 Reinforcing bars in the interbeam direction (reinforcing bars)
63 Reinforcing bar 63a Upper and lower part of frontage 63b Deepest upper and lower part 64 Upper first reinforcing bar 65 Lower first reinforcing bar 66 Upper second reinforcing bar 67 Lower second reinforcing bar 68 Concrete A1 Dwelling unit A2 Specified water supply equipment A3 Water supply other than specified water supply equipment Equipment C1 Flat plate part C1a Notch part C2 Convex part C3 PC steel wire

Claims (4)

It is a dwelling unit floor structure for making it possible to change the position of the water supply facility in each dwelling unit arranged above and below,
A standard slab that constitutes a normal floor, and a low-level slab that constitutes a recessed area one step lower than the standard slab,
The concave region has a main concave portion disposed at substantially the same site in the horizontal direction in each of the upper and lower dwelling units, and at least one branch concave portion extending from the main concave portion to the outside of the main concave portion,
The main recess, out of the water around equipment, noise is assumed to be fixed to the horizontal position in each dwelling unit in the vertical, which can be installed only prone specific water around equipment vibration horizontal Has a spread of direction ,
The main concave portion is arranged on one side of the girder direction in the dwelling unit,
The branch recess extends so that at least one of the branch recesses enters the other side beyond the center of the carry direction in the dwelling unit, and the piping for the water supply facility other than the specific water supply facility is provided. It is set to a width and depth that enables installation,
Examples of the above water around equipment other than the specific water around facilities, dwelling floor structure, wherein Kitchingaa Rukoto. The lower standard slab and the specific standard slab, which is the standard slab and is located in the direction of the lower slab, each has a bottom surface made of precast concrete having a PC steel wire, and a reinforcing bar is arranged above each precast concrete. The dwelling unit floor structure according to claim 1, wherein an upper surface portion is constituted by the concrete placed above . Each of the above precast concretes has a plurality of ridges extending linearly on the flat plate portion and arranged in parallel to each other, and the extension of each ridge portion in a portion corresponding to each of the ridge portions. It has a configuration with a PC steel wire provided to extend in the existing direction,
The precast concrete on the specific standard slab side and the lower slab side is installed with the extending direction of the ridges directed in the direction of the shift, and the ends of the ridges are vertically It is installed so as to overlap with the
The precast concrete on the specific standard slab side has a cutout portion in a shape obtained by removing a portion overlapping the precast concrete on the low-order slab side of the flat plate portion adjacent to the ridges.
A plurality of the reinforcing bars are arranged in the girder direction and the inter-beam direction on the upper side of each precast concrete on the specific standard slab side and the lower slab side,
Above the portion corresponding to the notch, claim, characterized in that the specific criteria slab side and stirrups formed so as to surround a plurality of reinforcing bars of the Harima direction located to the low slab side are al provided 2 The dwelling floor structure described in 1. On the upper side of the flat plate portion adjacent to the ridges in the precast concrete on the specific standard slab side, there is a higher rank extending in the direction of the upper and lower sides relative to the upper surface of the ridges. 1 rebar and lower first rebar are provided,
The upper first reinforcing bar and the lower first reinforcing bar are bent downward at a portion corresponding to the distal end portion of the ridge portion located at the notch portion, and are vertically moved at the front end side of the notch portion of the heel bar. Formed so as to extend downward along the portion extending to
On the upper side of the flat plate portion adjacent to the ridges in the lower cast slab side precast concrete, the upper second extending in the carry direction on the upper and lower sides with respect to the upper surface of the ridges, respectively. Reinforcing bars and lower second reinforcing bars are provided,
These upper second reinforcing bar and lower second reinforcing bar are bent upward at a portion corresponding to the innermost part of the notch in the precast concrete on the specific reference slab side, and the innermost part of the notch in the reinforcing bar The dwelling unit floor structure according to claim 3, wherein the dwelling unit floor structure is formed so as to extend upward along a portion extending in a vertical direction on the side .

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