JP2008088773A - Low-rise building construction method and panel structure for low-rise building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method and a panel structure allowing inexpensive construction of a low-rise building superior in thermal insulation performance. <P>SOLUTION: This panel structure 16 for the low-rise building is characterized in that an EPS plate 16a of the same size is arranged in the outermost layer, and one or a plurality of EPS plates and/or one or a plurality of polypropylene plates 16b having the same size as the EPS plate, are arranged in an intermediate layer, and are formed by adhering the mutual adjacent plates by an adhesive, and a large number of grooves 18a and 18b are arranged on a surface of one outermost layer or a surface of both outermost layers, and a large number of through-holes 20 reaching the other surface from one surface of the outermost layer, are arranged in the grooves. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a low-rise building construction method and a panel structure for a low-rise building. The low-rise building in the present invention is mainly intended for a one-story to three-story wooden building.

  In order to provide a comfortable living space, a house in a cold region is particularly required to have excellent heat insulation. Conventionally, various construction methods for low-rise buildings considering heat insulation have been proposed.

  An object of this invention is to provide the construction method and panel structure which can construct the low-rise building excellent in heat insulation at low cost. In addition, a building constructed on a site adjacent to an area with heavy traffic may be exposed to continuous vibration, but the purpose is to provide a construction method and panel structure with excellent seismic isolation. It is said.

  The panel structure for a low-rise building according to claim 1 has an EPS plate of the same size arranged in the outermost layer, and one or a plurality of EPS plates having the same size as the EPS plate and / or Alternatively, one or a plurality of polypropylene plates are arranged in an intermediate layer and are formed by adhering adjacent plates with an adhesive, and a plurality of grooves are formed on one outermost surface or both outermost surfaces. A large number of through-holes are arranged in the groove from one surface of the outermost layer to the other surface.

  The panel structure for a low-rise building according to claim 2 of the present application is formed by a single plate made of EPS, and a plurality of grooves are arranged on one surface or both surfaces of the plate, A large number of through-holes are arranged on the surface.

  The panel structure for a low-rise building according to claim 3 of the present application is formed of one EPS plate, and a reinforcing portion is provided on one surface of the plate, and the reinforcing portion is one surface of the plate. It is characterized by being formed by fitting a hard material formed in a shape matching the groove into the groove provided in the groove.

  The panel structure for a low-rise building according to claim 4 of the present application is formed by a single plate made of EPS, and a convex portion including a base portion and a protruding portion is provided on one surface of the plate, The convex portion is formed by fitting the base portion shaped in a shape matching the groove into the groove provided on one surface of the plate so that the protruding portion protrudes from the plate surface. It is characterized by being.

  In the low-rise building construction method according to claim 5 of the present invention, the bottom surface and the side surface of the excavation site where the foundation of the building is to be constructed are covered with a civil engineering sheet, and crushed stone is laid on the bottom surface of the excavation site and rolled. Then, the upper surface of the crushed stone layer is covered with a civil engineering sheet, the panel structure for a low-rise building according to claim 1 is provided on the bottom surface of the excavation site, and the panel structure according to claim 2 is provided on a side surface of the excavation site. Each body, covering the panel structure for a low-rise building on the bottom surface and the panel structure for a low-rise building on the side surface with a waterproof sheet, placing discarded concrete on the top surface of the waterproof sheet, and After assembling the reinforcing bars, the foundation is constructed by placing concrete.

  The method for constructing a low-rise building according to claim 6 of the present invention is the interval holding portion having the same length as the width of the concrete placing portion of the rising portion of the foundation, and the interval holding portion provided with the flange portions at both ends, and the interval holding A reinforcing member for a panel structure according to claim 3, wherein a fastener having a female screw part extending outward from the end of the part and having a female screw provided therein and a bolt to be screwed into the female screw part is prepared. Insert the bolt of the fastener into the bolt, screw the female screw part into the tip of the bolt, fix the panel structure to a predetermined location on a solid foundation, and place another panel structure on the opposite side of the panel structure to reinforce By inserting another bolt into the part and screwing it into the corresponding female thread part, a space is formed between the opposing panel structures, and concrete is placed in the space to raise the foundation It is characterized in that applying a minute.

  The low-rise building construction method according to claim 7 of the present application is the method according to claim 6, wherein the fastener further including a hook-like member for holding a single pipe is prepared, and the hook is fixed with the bolt. Adjacent panel structures are arranged in a single line by placing a single tube extending in the horizontal direction on the shaped member.

  ADVANTAGE OF THE INVENTION According to the panel structure and construction method of this invention, the low-rise building which has favorable heat insulation and vibration impact performance is provided. In this invention, since the panel structure which has favorable heat insulation and vibration impact performance is used as a formwork for concrete, while being able to shorten a construction work period, it also contributes to the reduction of construction cost. The reinforcing portion and the convex portion of the panel structure also serve as ribs that increase the strength of the panel structure itself.

  Next, a low-rise building construction method according to a preferred embodiment of the present invention will be described in detail with reference to the drawings. The low-rise building construction method according to a preferred embodiment of the present invention is roughly classified into a foundation bottom / side construction method, a foundation rising part construction method, and a building wall / roof construction method. The

  First, the construction method of the bottom / side of the foundation will be described. FIG. 1 is a cross-sectional view schematically showing a foundation constructed by a foundation bottom / side construction method, and FIG. 2 is a diagram showing a series of procedures in the foundation bottom / side construction method. . First, the ground at the location where the foundation is to be constructed is excavated, and the bottom and side surfaces of the excavated location are covered with the civil engineering sheet 10 (see FIG. 2A). The civil engineering sheet 10 may be formed of polyester fiber or the like, and may be one generally used in road construction, soft ground countermeasures, harbors, river fields, and the like. The civil engineering sheet 10 has water permeability.

  Next, after crushing and rolling the bottom of the excavation site covered with the civil engineering sheet 10, the top surface of the crushed stone layer 12 is covered with the civil engineering sheet 14 (see FIG. 2B). The civil engineering sheet 14 may be the same as the civil engineering sheet 10.

  Next, panel structures 16 and 16 'for low-rise buildings according to a preferred embodiment of the present invention are disposed on the bottom and side surfaces of the excavation site, respectively (see FIG. 2 (c)). FIG. 3 is a schematic perspective view showing the panel structure 16 for a low-rise building disposed on the bottom surface.

  The panel structure 16 for a low-rise building is formed by adhering a rectangular bead-method polystyrene foam (Expanded Poly-Styrene, hereinafter referred to as “EPS”) plate 10a and a polypropylene plate 10b of the same size with an adhesive. The EPS is known as a good heat insulation material, but by combining EPS and polypropylene, a material with improved vibration impact performance can be obtained while retaining good heat insulation performance. In addition, the panel structure 16 for low-rise buildings shown in FIG. 3 has a total of five layers in which the first layer, the third layer, and the fifth layer are EPS plates, and the second layer and the fourth layer are polypropylene plates. However, if the outermost layers (in this example, the first layer and the fifth layer) are formed of EPS plates, the number of layers and the material for forming each layer are limited to those shown in FIG. Is not to be done.

A plurality of rows of vertical grooves 18a and a plurality of rows of horizontal grooves 18b are arranged in a lattice pattern on the top and bottom surfaces of the low-rise building panel structure 16, and the vertical grooves 18a and the horizontal grooves 18b A through hole 20 extending from the top surface to the bottom surface is provided at each intersection. The reason why the grooves 18a and 18b and the through hole 20 are provided is to secure a drainage path and to reduce the floating and uneven settlement of the foundation when a liquefaction phenomenon occurs. In addition, in the panel structure 16 for low-rise buildings shown by FIG. 3, although the groove | channel is provided in both surfaces of a top surface and a bottom face, you may provide a groove | channel only in any one surface depending on a use location. Moreover, although the groove | channel is provided so that it may be parallel / perpendicular to each edge | side, you may provide a groove | channel so that it may become diagonal with respect to each edge | side. Moreover, although the groove | channel is provided in two directions of the vertical direction and a horizontal direction, you may provide a groove | channel only in any one direction.

  The low-rise building panel structure 16 'provided on the side of the excavation site is substantially the same configuration as the low-rise building panel structure 16' except that it is formed of one EPS plate. have. The reason why the low-rise building panel structure 16 ′ is formed of one EPS plate is smaller in load applied to the panel structure than the low-rise building panel structure 16 disposed at the bottom of the foundation. This is because of this.

  Next, the low-rise building panel structure 16 disposed on the bottom and side surfaces of the excavation site is covered with the waterproof sheet 22 (see FIG. 2D). The waterproof sheet 22 may be a normal one.

  Next, the discarded concrete 24 is placed on the upper surface of the waterproof sheet 22 and a necessary reinforcing bar is assembled (see FIG. 2 (e)). Finally, the foundation 26 is constructed by placing concrete (see FIG. 2F). Since the low-rise building panel structures 16, 16 'serve as a formwork for the solid foundation 26, it is not necessary to install a formwork.

  Next, the construction method of the rising part of a foundation is demonstrated. FIG. 4 is a cross-sectional view schematically showing the foundation on which the rising portion is constructed, and FIG. 5A shows the second low-rise building panel structure 28 used in the construction method of the rising portion of the foundation. FIG.

  The second low-rise building panel structure 28 is formed of a rectangular EPS plate, and a reinforcing portion 28a is provided on one surface of the plate. The reinforcing portion 28a is formed by fitting a hard material formed in a shape matching the groove into a groove provided on one surface of the EPS plate. As the hard material, an appropriate resin plastic material or the like is used. The reinforcement part 28a is used as a location for passing a fastener such as a bolt. The reinforcing portions 28a shown in FIG. 5 (a) are arranged in two rows at a predetermined interval on one surface of the plate, but this is merely an example, and the present invention is not limited to this (for example, The reinforcing portions may be arranged in three rows). A mounting portion 28b for fixing the panel structure 28 to the solid base 26 is provided at the bottom of the panel structure 28. The attachment portion 28b is formed by fitting a hard material formed in a shape matching the groove into a groove provided in a part of the bottom edge of the EPS plate, as shown in FIG. As shown, the panel structure 28 is fixed to the solid base 26 by nailing the mounting portion 28b. Further, grooves 28 c used for connecting adjacent panel structures 28 to each other are provided on both side edges of the panel structure 28. Then, as shown in FIG. 5C, adjacent panel structures 28 can be connected by inserting a connecting member 28d formed in a shape matching the groove 28c into the groove 28c.

  FIG. 6 is an exploded perspective view showing the fastener 30 used in the construction of the rising portion of the foundation. The fastener 30 has the same length as the width of the concrete filling portion of the rising portion of the foundation (in other words, the distance between the inner surfaces of the opposing second low-rise building panel structure 28) w at both ends. A space holding portion 30a provided with each of the portions 30a1, a female screw portion 30b extending outward from the end of the space holding portion 30a and having a female screw therein, a bolt 30c screwed into the female screw portion 30b, and a single pipe And a hook-like member 30d for holding the

  In the construction method of the rising part of the foundation, first, the bolt 30c of the fastener 30 is inserted into the reinforcing part 28a of one second low-rise building panel structure 28, and the female screw part 30b is screwed into the tip of the bolt 30c (see FIG. 7 (a)). Next, the second low-rise building panel structure 28 is fixed to a predetermined portion of the solid foundation 26 (see FIG. 7B), and the other second low-rise building panel structure 28 is opposed to the second low-rise building panel structure 28. Deploy. As a result, a gap having a width w equal to the length of the spacing portion 30a is formed between the opposing second low-rise building panel structures 28. Next, the rising portion of the foundation is formed by filling the gap with concrete (see FIG. 7C). In addition, it is good to install an anchor bolt in a predetermined location before concrete filling. In the method of the present invention, since the opposing second low-rise building panel structure 28 becomes a formwork, extremely efficient construction is possible.

  When constructing the rising portion of the foundation, the panel structure 28 is disposed so as to surround the reinforcing bars as described above. At this time, it is necessary to arrange adjacent panel structures 28 so as not to wave, but by placing a single tube extending horizontally on a hook-like member 30d fixed by a bolt 30c, the panel The structures 28 can be easily arranged on one line (see FIG. 7D). In FIG. 4, the waterproof sheet 22 is positioned on the outer surface of the panel structure 28, but the waterproof sheet may be positioned on the inner surface of the panel structure 28.

  Next, the construction method of the wall / roof of the building will be described. Fig.9 (a) is the figure which showed the 3rd low-rise building panel structure 34 used in the construction method of a wall part. The third low-rise building panel structure 34 is formed of a rectangular EPS plate, and a convex portion 34a is provided on one surface of the plate. The convex portion 34a (see FIG. 9B) composed of the base portion 34a1 and the protruding portion 34a2 is formed in the groove so that the protruding portion 34a2 protrudes from the plate surface in the groove provided on one surface of the EPS plate. Is formed by fitting a base portion 34a1 formed in a shape matching the above. The convex portion 34a is formed of a hard material, and an appropriate resin plastic material or the like is used as the hard material. The convex portion 34a is used as a protrusion for fitting an outer wall material (for example, a tile). In the panel structure 34 shown in FIG. 9A, the protrusions 34a are arranged in three rows at a predetermined interval on one surface of the plate. However, this is merely an example, and is limited to this. It is not a thing (For example, you may make a convex part into 4 or more rows.).

  In the construction method of the wall portion, the third low-rise building panel structure 34 is attached to the base material so that the convex portion 34a faces the outer surface. Thereafter, a wall portion is formed by sequentially attaching tiles provided with grooves corresponding to the protruding portions 34a2 of the convex portions 34a to the third low-rise building panel structure 34 (see FIG. 8). Moreover, in the construction method of a roof part, a roof part is formed by fixing the 2nd low-rise building panel structure 28 to a base material using a nail etc. At this time, the nail is preferably struck against the reinforcing portion 28a.

  The third low-rise building panel structure 34 may be used to form an air passage. That is, in the construction method of the wall portion described above, the panel structure 34 is used so that the convex portion 34a extends in the horizontal direction, but the panel structure body 34 is arranged so that the convex portion 34a extends in the vertical direction. By attaching the outer wall material, a ventilation path extending in the vertical direction is formed between the panel structure 34 and the outer wall material (see FIG. 10).

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

It is sectional drawing which showed typically the foundation constructed | assembled by the construction method of the bottom part / side part of the foundation which concerns on preferable embodiment of this invention. It is the figure which showed a series of procedures in the construction method of the bottom / side part of a foundation. FIG. 3A is a perspective view schematically showing a panel structure for a low-rise building according to a preferred embodiment of the present invention, and FIG. 3B is along a line 3b-3b in FIG. FIG. It is sectional drawing which showed typically the foundation constructed | assembled by the construction method of the standup | rising part of the foundation which concerns on preferable embodiment of this invention. FIG. 5A is a perspective view schematically showing a second low-rise building panel structure according to a preferred embodiment of the present invention, and FIG. 5B is a line 5b-5b in FIG. 5A. FIG. 5C is a view showing a method of connecting adjacent panel structures. It is the disassembled perspective view which showed the fastener used in construction of the standup | rising part of a foundation. It is the figure which showed a series of procedures in the construction method of the rising part of a foundation. It is the figure which showed typically the construction method of the wall part / roof part which concerns on preferable embodiment of this invention. FIG. 9 (a) is a perspective view schematically showing a third low-rise building panel according to a preferred embodiment of the present invention, and FIG. 9 (b) is a low-rise building panel structure of FIG. 9 (a). It is a partially enlarged view of the body. It is the figure which showed the usage example of the 3rd low-rise building panel of FIG.

Explanation of symbols

10, 14 Civil engineering sheet 12 Crushed stone 16, 16 'Low-rise building panel structure 18a, 18b Groove 20 Through hole 22 Waterproof sheet 24 Discarded concrete 26 Solid foundation 28 Second low-rise building panel structure 30 Fastener 34 34 3 Panel structure for low-rise buildings

Claims (7)

An EPS plate of the same size is arranged in the outermost layer, and one or more EPS plates and / or one or more polypropylene plates of the same size as the EPS plate are arranged in the intermediate layer. , Formed by adhering adjacent plates with an adhesive,
A number of grooves are disposed on one outermost layer surface or both outermost layer surfaces, and a plurality of through holes extending from one surface of the outermost layer to the other surface are disposed in the grooves. Panel structure for low-rise buildings. Formed by one EPS plate,
A panel structure for a low-rise building, wherein a large number of grooves are arranged on one or both surfaces of the plate, and a large number of through holes are arranged in the grooves. Formed by one EPS plate,
A reinforcing portion is provided on one surface of the plate, and the reinforcing portion is formed by fitting a hard material formed in a shape matching the groove into a groove provided on one surface of the plate. A panel structure for a low-rise building characterized by being made. Formed by one EPS plate,
A convex portion comprising a base portion and a protruding portion is provided on one surface of the plate, and the protruding portion protrudes from the plate surface in a groove provided on one surface of the plate. Thus, the panel structure for a low-rise building is formed by fitting the base portion formed in a shape matching the groove. A construction method for a low-rise building,
Covering the bottom and sides of the excavation site where the foundation of the building is to be constructed with a civil engineering sheet, laying crushed stone on the bottom surface of the excavation site and rolling, then covering the top surface of the crushed stone layer with a civil engineering sheet, The panel structure for low-rise buildings according to claim 1 is disposed on the bottom surface of the excavation site, and the panel structure according to claim 2 is disposed on a side surface of the excavation site, and the panel for low-rise buildings on the bottom surface is provided. The structure and the panel structure for a low-rise building on the side surface are covered with a waterproof sheet, and the discarded concrete is placed on the upper surface of the waterproof sheet, and the concrete is placed after assembling the required reinforcing bars. The construction method characterized by constructing. A construction method for a low-rise building,
An interval holding portion having the same length as the concrete placement portion of the rising portion of the foundation and having flanges at both ends, extending outward from the end of the interval holding portion, and internally provided with an internal thread A fastener having a female threaded portion and a bolt to be screwed into the female thread portion is prepared, and the bolt of the fastener is inserted into the reinforcing portion of the panel structure according to claim 3, and the bolt is inserted into the tip of the bolt. Screw the female screw part, fix the panel structure to a predetermined position of a solid foundation, place another panel structure on the opposite side of the panel structure, and insert another bolt into the reinforcing part to the corresponding female screw part. A construction method characterized by forming a space between opposing panel structures by screwing and constructing a rising portion of the foundation by placing concrete in the space. By preparing the fastener further having a hook-like member for holding a single pipe and placing the single pipe extending in the horizontal direction on the hook-like member fixed by the bolt, the adjacent panel structures are aligned. 7. The method of claim 6, wherein

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