JPH1082092A - Building of box frame structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make lightweight of a building of box frame structure by forming a gable wall or a separation wall as a bearing wall constituted of prestressed concrete hollow core slabs. SOLUTION: In a multiple dwelling house, L-type wall columns 2a and T-type wall columns 2b are arranged in corner sections of dwelling units A, and beams 1 arranged in the longitudinal direction are mounted on the wall columns 2a and 2b to constitute a rigid frame. Wallboards 3 of prestressed concrete hollow core slabs are arranged between the wall columns 2a and 2b in the span direction to constitute bearing walls. Projected beams are mounted on the wall columns 2a and 2b, projected floor boards used as floors of a veranda or an outside corridor are mounted on beam sections of the beams and, at the same time, they are mounted on stages formed in the beams 1. Floor boards 4 and roof boards 5 are constituted of prestressed concrete hollow core slabs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building for the purpose of collective housing such as apartments and condominiums. The present invention relates to a building with a wall-type rigid frame structure using beams in directions.

[0002]

2. Description of the Related Art In general, a building having a wall-type rigid frame structure uses precast concrete panels in both a beam direction and a beam-to-beam direction, or is made of cast-in-place concrete.

On the other hand, a prestressed concrete plate for use as a floor plate of a building has been provided. In this prestressed concrete plate, a tension member is arranged at a position deviated from a neutral axis in a thickness direction and is restrained by concrete, and can exhibit high strength against bending in a specific direction with respect to a surface.

[0004]

In the above-mentioned wall-type rigid frame structure, since solid precast concrete panels and cast-in-place concrete are used, the weight of the building is large.
In addition, there are disadvantages for foundation design, earthquake resistance, economic design, and the like. When this structure is applied to an apartment house, there is a problem in that the width between the beams is increased due to the provision of the end wall and the boundary wall, and the specification becomes excessive in terms of structural strength.

The above-mentioned prestressed concrete plate is designed to resist bending force acting in one direction, and can exhibit optimum strength when used as a flooring material. There is no idea to use it for the part.

SUMMARY OF THE INVENTION An object of the present invention is to provide a building with a wall-type rigid frame structure which can be reduced in weight by using a perforated prestressed concrete plate as a wall or boundary wall in the direction between beams.

[0007]

In order to solve the above-mentioned problems, a building having a wall-type rigid frame structure according to the present invention is a building having a continuous dwelling unit having a wall-type rigid frame structure. And a perforated prestressed concrete plate is placed as a bearing wall in the direction between the beams.

[0008] In the above-mentioned building with a wall-type rigid frame structure, the frame is a rigid frame structure in which beams are arranged in the girder direction, and a wall in which a perforated prestressed concrete plate (hereinafter referred to as a "perforated PC board") serving as a bearing wall is arranged in the direction between beams. With such a structure, it is possible to construct a building having a wall-type rigid frame structure applicable to an apartment house such as an apartment or a condominium having continuous dwelling units.

In particular, by using a perforated PC board as the load-bearing wall, it is possible to reduce the weight of the building. However, when a perforated PC board used as a wall material is compared with a precast concrete panel or cast-in-place concrete, the perforated PC board has a drawback in terms of strength. That is, when a perforated PC board is used as a wall material, there is a problem that the proof stress per unit width is inferior to the in-plane shearing force acting on the wall due to a horizontal force such as an earthquake.

In an apartment house, it is necessary to form a boundary wall in order to obtain sound insulation performance, and there is a characteristic that the wall amount in the direction between beams inevitably increases. In addition, since the apartment house has a wife wall on the wife side, the specifications are too large for precast concrete panels and cast-in-place concrete. However, considering that the whole wall or wall is made of perforated PC board,
It is possible to exhibit sufficient proof stress in the direction between the beams, and it is possible to obtain a building that has no difficulty in strength and is lightweight.

[0011] In the above building, it is preferable that the corners of each dwelling unit are constituted by wall pillars, and that the floor and the roof are constituted by perforated PC boards.

As described above, by forming the corner of each dwelling unit with a wall post, it is possible to restrain both ends of a wall or a wall formed by arranging a perforated PC board by the wall post. In addition, sufficient strength can be exhibited as the whole wall. In addition, since the floor and the roof are made of perforated PC boards, the boards can be applied to floors and roofs having a sufficiently large span, so that small beams are not required to improve the degree of freedom in space configuration and to improve the building. Can be lightened.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the above-mentioned building will be described below with reference to the drawings. FIG. 1 is a perspective view of a building according to the present invention, FIG. 2 is a diagram illustrating an example of a plan of an apartment house, FIG. 3 is a perspective view illustrating a configuration of a perforated PC board, and FIG. FIG. 5 is a diagram illustrating a construction procedure when constructing a floor portion, FIG. 5 is a diagram illustrating a construction procedure when constructing a portion of a building on two or more floors, and FIG. 6 is a schematic diagram illustrating a joint state between a wall and a floor. FIG. 7 is an exploded view for explaining a procedure for forming a ramen structure in the column direction, and FIG. 8 is a view for explaining a procedure for attaching a take-out member.

The present invention is designed for the apartment house shown in FIG. 1, and the beam direction indicated by the arrow a is a beam 1 above the wall columns 2a and 2b arranged at the corners of the dwelling unit A.
And a wall-type structure in which a wall plate 3 made of a perforated PC plate is arranged as a load-bearing wall between the wall columns 2a to 2a and 2b to 2b in the direction between the beams indicated by the arrow b. I have. Therefore, the dwelling unit A is configured as a dwelling space separated from the dwelling unit A adjacent thereto by the boundary wall made of the wall plate 3.

The beam 1 is mounted on the upper portions of the wall columns 2a and 2b to form a rigid frame. That is, the beam 1 may be any as long as it can be integrated with the wall columns 2a and 2b. Therefore, the beam 1 can be configured as a panel-shaped member made of precast concrete.

However, in this embodiment, as shown in FIG. 7, the wall columns 2a, 2b in the row direction of the dwelling unit A are arranged.
Having a length corresponding to the spacing dimension of
a and a wall post 2 at a predetermined position at the bottom of the groove 1a.
A member made of precast concrete having a hole 1b through which a main bar 7a raised from a, 2b is inserted is used.
In addition, a step portion 1c is formed on the side surface of the beam 1 for carrying out a leveling by mounting a below-described veranda or a floor plate 10 taken out of an outer corridor over the entire length.

The wall columns 2a and 2b are arranged at corners of the dwelling unit A and are made of precast concrete. The wall pillar 2a is formed in an L shape so that it can be arranged at the corner of the building, and the wall pillar 2b is formed in a T shape so that it can be arranged corresponding to the boundary wall between the dwelling units A. .

The beam 1 is mounted on the wall columns 2a and 2b. For this reason, the height in the row direction of each of the wall columns 2a and 2b is formed to have a dimension obtained by subtracting the height of the beam 1 from the height of the dwelling unit A. That is, the height of the pieces arranged in the girder direction of each wall column 2a, 2b is set in consideration of the height of the beam 1, and the height of the pieces arranged in the direction between the beams is the height of the dwelling unit A. Is set corresponding to. Therefore, each of the wall columns 2a and 2b may be manufactured in advance with irregularities corresponding to the difference in the height direction, and may be manufactured with a dimension obtained by subtracting the height of the beam 1 from the height of the dwelling unit A. The height of the pieces in the direction between the beams and in the direction of the girder are made equal, and the wall columns 2a, 2b
A joint wall 9 and a take-out beam 8, which will be described later, having a height equal to the height of the beam 1 in the direction between the beams at the top of the beam may be placed.

An anchor bar 6a provided on a foundation 6 to be described later or a main bar 7a raised from the upper end of the wall column 2a, 2b arranged on the lower floor is inserted into the lower end of the wall column 2a, 2b. A hole is formed. This hole can be formed by a cylindrical member (sleeve) connected to the lower end of the main bar 7a arranged in the vertical direction of the wall columns 2a and 2b. A wall post 2 is provided on the side of the cylindrical member.
A grout injection hole and a drain hole (not shown) connected to the side surfaces of a and 2b are provided. When the concrete is filled in the groove 1a of the beam 1, the filled concrete flows out of the hole 1b, and a concave portion 2c is formed at the upper end side of the wall column 2a, 2b to join the beam 1 with the wall column 2a, 2b. Have been. Further, the main pillars 7a and 2b are provided in advance at the factory stage.
a, stirrups, abdominal muscles and the like (not shown) are arranged, and main bars 7a are raised at the upper end sides of the wall columns 2a and 2b.

A floor panel 4 is disposed on the floor, and a roof panel 5 is disposed on the roof. As the floor plate 4 and the roof plate 5, a general floor material and a concrete plate as a roof material can be used. However, in this embodiment, a floor plate 4 and a roof plate 5 made of a perforated PC plate similar to the wall plate 3 are used.

In a multi-family house, a plurality of housing units A are generally formed in series, and depending on the shape of the site, a one-hall corridor type construction shown in FIG. A plan such as a geese type building shown or a staircase type building shown in FIG. Regardless of the plan,
Between adjacent dwelling units A, there is formed a wall composed of the wall plate 3 and having a high level of sound insulation and sufficient strength.

Here, the configuration of the perforated PC board 51 used as the wall board 3, floor board 4, and roof board 5 will be described with reference to FIG. The perforated PC board 51 has a width of 1 m and a length of 3 in advance.
It is configured as a unit panel with dimensions of 200 mm in thickness and 200 mm in thickness. A plurality of holes 52 are formed in the perforated PC board 51 in the longitudinal direction, and a plurality of tendons 53 are arranged in the longitudinal direction. The perforated PC board 51 has a longitudinal tension member.
Only 53 are arranged, and no horizontal stripes are arranged.

The tension member 53 is made of a material having a high tensile strength, such as a steel wire, and is provided at a position deviated by a predetermined distance from the center of the perforated PC board 51 in the thickness direction. The tendon 53 is constrained by concrete in a state in which a preset tension is applied, whereby the perforated PC
The plate 51 generates a compressive stress in a free state. Therefore, when a bending force is applied from the surface opposite to the side where the tension members 53 are arranged, it is possible to sufficiently oppose this force.

In addition, one end of the hole 52 formed in the perforated PC board 51 serving as the wall board 3 is provided with a main reinforcement 7b in advance at the factory stage.
Is buried with its upper end protruding and fixed by filling with mortar, and an injection hole (not shown) for injecting grout material is formed in the side surface on the other end side.

Next, the construction procedure of the building according to the present embodiment will be described with reference to FIGS.
Detailed portions such as a joint state between the beam 2b and the beam 1 and a joint state between the wall plate 3 and the floor plate 4 will be described.

As shown in FIG. 4 (a), the foundation 6 is provided with anchor bars 6a for joining the wall columns 2a, 2b and the wall plate 3 in advance. The floorboard 4 is laid on the foundation 6 as shown in FIG. After the floorboards 4 have been laid all over the corresponding portions, the wall columns 2a and 2b are arranged at positions corresponding to the corners of each dwelling unit A, as shown in FIG.
a and 2b are attached to the cylindrical member arranged at the lower end side by an anchor bar 6
a, and grout is injected from the grout injection holes on the side surfaces of the wall pillars 2a and 2b. These wall columns 2a, 2
A main bar 7a is set up at b.

Next, as shown in FIG. 3D, the beam 1 is placed in the girder direction on the wall columns 2a and 2b installed at predetermined positions, and is placed between the beams and in the veranda or outside corridor. When a veranda or an outer corridor is not installed, a connecting wall 9 having a height equal to that of the beam 1 is mounted. The beam 1, the take-out beam 8, and the joint wall 9 placed on each of the wall columns 2a and 2b are respectively joined via main reinforcements 7a, and these members constitute a ramen frame. The take-out beam 8 and the joint wall 9 are each made of precast concrete.

Next, as shown in FIG. 3E, a wall plate 3 constituting a bearing wall is arranged in the direction between the beams. Here, a joint structure of the wall columns 2a and 2b, the beam 1, the wall plate 3, and the take-out beam 8 will be described with reference to FIG.

The beam 1 has a length corresponding to the distance between the wall columns 2a and 2b arranged in the girder direction of the dwelling unit A, and is formed in a U-shape having a groove 1a formed over the entire length. . At a predetermined position on the bottom of the groove 1a, the wall post 2a,
2b is formed with a hole 1b through which the main reinforcing bar 7a is erected.
At a predetermined position on the outer side surface, a step portion 1c is formed over the entire length.

The take-out beam 8 is composed of a main body wall 8a having a height equal to the height of the beam 1 and a length equal to the length of the inter-beam direction of the wall columns 2a and 2b, and a precast concrete forming a veranda or an outer corridor. And a cantilevered beam portion 8b for supporting a take-out floor panel 10 (see FIGS. 5 and 8), and a hole 8c is formed in the main body wall portion 8a so as to penetrate in the height direction and to insert the main reinforcement 7a. Have been.

The take-out beam 8 is placed on one of the wall columns 2a, 2b installed on the foundation 6 in the direction between the beams, and the beam 1 is placed on the one in the row direction. At this time, the main bars 7a raised on the wall columns 2a, 2b are inserted into the holes 8c of the take-out beam 8 and the holes 1b of the beam 1, respectively. Further, another main reinforcement 7a is inserted into the upper part of the hole 8c of the take-out beam 8 and the upper part of the hole 1b of the beam 1, respectively. In this state, the groove 1a of the beam 1 and the hole 8c of the take-out beam 8
Filling each with concrete, beam 1, wall column 2
It is possible to configure a ramen frame in which a, 2b, and the take-out beam 8 are integrated.

Further, a wall plate 3 is arranged between the pieces of the wall columns 2a and 2b in the direction between the beams to form a bearing wall. That is, the anchor bar 6a provided on the foundation 6 is inserted into the hole 52 of the wall plate 3, grout mortar is injected from the grout injection hole, and the wall post 2a,
By injecting mortar into the gap between 2b and wall plate 3 and the gap between adjacent wall plates 3, a bearing wall is formed in the direction between beams.

As described above, the wall columns 2 are arranged in the row direction of the building.
a, 2b and a beam 1 are constructed, and a load-bearing wall composed of the wall columns 2a, 2b and the wall plate 3 is formed in the direction between the beams, and then, as shown in FIG. An upper floor 4 is arranged and the two are joined.

When the wall plate 3 composed of the perforated PC board 51 and the floor plate 4 are joined, as shown in FIG. 6, the upper floor floor plate 4 is placed on the upper end of the wall plate 3 and then the wall plate 3 Using the main reinforcement 7b buried in the hole 52, the joint with the wall plate 3 on the upper floor was measured, and was previously buried and fixed in the hole 52 of the floor plate 4 with mortar at the factory stage and bent in a U-shape. Main bar 7 with U-shaped reinforcing bar 11
b. Then, the gap between the wall plate 3 and the floor plate 4 is filled with concrete and integrated, whereby the wall plate 3 and the floor plate 4 can be joined.

After the upper floor plate 4 is placed and laid on the lower floor wall plate 3, as shown in FIG. 4 (g), a precast concrete take-out floor plate is attached to the beam portion 8b of the take-out beam 8.
Place 10 on the veranda or outside corridor.

As shown in FIG. 8, the taken-out floor panel 10 is composed of a floor main body 10a serving as a floor of a veranda or a floor of an outer corridor, and a fixing streak disposed at a predetermined pitch and protruding outside.
10b. Then, both ends in the longitudinal direction are placed on the beam 8b of the take-out beam 8 and the end on the side of the beam 1 is placed on the step 1c of the beam 1, and the anchoring line 10b is placed on the floor plate 4 on the upper floor. .

After the take-out floor plate 10 is placed on the beam 1 and the take-out beam 8 as described above, as shown in FIGS. 8 and 5 (a), the floor reinforcement 12 is arranged above the floor plate 4 on the upper floor. Stir the floor muscle
12 is connected to the anchoring line 10b of the floor plate 10 taken out, and the floor concrete 13 is cast, and the wall plate 3, floor plate 4, wall pillars 2a and 2b and the take-out beam 8, take-out floor plate 10, and beam 1 are integrated to form a composite floor. Is configured.

After curing the floor concrete 13, the dwelling units A on the second and third floors are constructed through the same steps as described above, as shown in FIGS. At this time, the wall pillars 2a, which are installed in the girder direction of the dwelling unit A on the top floor,
The take-out beam 8 is placed on all of 2b.

Then, as shown in FIG. 4D, a precast concrete eave is attached to the take-out beam 8 provided on the top floor.
Place 14 The eaves 14 are provided with protruding L-shaped fixing streaks 14a. The fixing streaks 14a can be integrated by inserting the fixing streaks 14a into the grooves 1a of the beam 1 and filling concrete.

After arranging the eaves 14 on the top floor, the roof panel 5 is placed above the wall panel 3. The joint structure between the roof plate 5 and the wall plate 3 has the same structure as the joint structure between the wall plate 3 and the floor plate 4 shown in FIG.

As described above, the column direction is changed to the wall columns 2a and 2b.
It is possible to construct a building having a rigid frame structure composed of the frame 1 and the beam 1, and a load-bearing wall composed of the wall plate 3 using the PC board 51 with a hole between the beams. In this building, wallboard 3
Precast concrete members are used for the floor plate 4, the roof plate 5, the wall pillars 2a and 2b, the beam 1, the take-out beam 8, and the like. For this reason, each member can be manufactured at the factory, and a stable material can be used.

The wall plate 3, floor plate 4 and roof plate 5 are 1 m wide.
By constructing a building by combining these unit panels with these panels, it is possible to use a truck having a loading capacity of about 2 tons as a transport means from the factory to the site. Further, since the weight of the unit panel is reduced, it is possible to use a heavy machine having a small capacity for lifting.

[0043]

As described in detail above, in the building of the wall type rigid frame structure according to the present invention, since the demand for sound insulation performance of the boundary wall portion in the apartment house is high, the wall amount in the direction between beams is reduced.
It was made by paying attention to the point that it becomes larger than required for structural strength and it becomes excessive specification. By constructing a load-bearing wall consisting of a perforated PC board on the wall in the direction between beams, sufficient structural In addition to exhibiting proof stress, it has sufficiently high sound insulation performance, can reduce the amount of concrete used, can reduce the weight of buildings, and can reduce costs.

In particular, a wall post is installed at a corner of the dwelling unit, and the perforated PC plate constituting the load-bearing wall arranged in the direction between the beams is restrained by the wall post, so that each perforated PC plate is made of a wall material. In spite of having some disadvantages in the strength against the horizontal force when used in the above, it is possible to construct a load-bearing wall which satisfies the structural safety as a whole wall surface.

Further, since the floor and the roof are made of perforated PC boards, the supporting span can be increased.
For this reason, it is possible to reduce the cost of the building by eliminating the need for small beams, to improve the degree of freedom of the space configuration, and to reduce the weight of the building. Further, since the wall plate, the floor plate and the roof plate are perforated PC plates, joining of the wall and the floor and the wall and the roof can be performed relatively easily.

[Brief description of the drawings]

FIG. 1 is a perspective view of a building according to the present invention.

FIG. 2 is a diagram illustrating an example of a flat plan of an apartment house.

FIG. 3 is a perspective view illustrating a configuration of a perforated PC board.

FIG. 4 is a diagram illustrating a construction procedure when constructing a first floor portion of a building.

FIG. 5 is a diagram illustrating a construction procedure when constructing a portion of a building on the second floor or higher.

FIG. 6 is a schematic diagram showing a joint state between a wall and a floor.

FIG. 7 is a development view for explaining a procedure for forming a ramen structure in the column direction.

FIG. 8 is a diagram illustrating a procedure for attaching a take-out member.

[Explanation of symbols]

 A dwelling unit 1 beam 1a groove 1b hole 1c step 2a, 2b wall pillar 2c recess 3 wall plate 4 floor plate 5 roof plate 6 foundation 6a anchor bar 7a, 7b main bar 8 take-out beam 9 joint wall 10 take-out floor plate 12 floor bar 13 floor Concrete 14 Eaves 51 Perforated PC board 52 Hole 53 Tendon

Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location E04B 2/56 604 E04B 2/56 604C 605 605M 611 611D 621 621R 632 632B 632C 632R

Claims (3)

[Claims] In a building having a continuous dwelling unit having a wall-type rigid frame structure, a girder direction is a rigid frame structure on which a beam is placed, and a beam-to-beam direction is a wall-type structure in which a perforated prestressed concrete plate is arranged as a bearing wall. A building with a wall-type ramen structure, characterized by: 2. The building according to claim 1, wherein the corner of each dwelling unit is formed of a wall pillar. 3. The floor and the roof are made of perforated prestressed concrete plates.
Or a building having a wall-type ramen structure according to 2.