JP2002227303A - Structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide structure for a building capable of increasing the degree or freedom of a plane shape of the building or plane designing inside the building. SOLUTION: This building is provided with a steel framework A having steel frame columns 1 and beams 2, reinforced concrete walls 3 positioned outside a structural face S constructed of the columns and the beams in the steel framework, a footing beam 4 arranged only in the position along the lower end part of the wall, a foundation 5 arranged in the lower part of the steel frame column, and a roof slab 6 supported by the wall and the steel framework. The walls are arranged at a proper interval in two directions X and Y orthogonal to each other, and instead of arrangement of a beam between upper end parts of a plurality of walls adjacent to each other in the inplane direction, the lower end part of the wall is connected to the footing beam by rigid jointing. In this way, a reverse rigid-framed structure B is constructed of a plurality of adjacent walls and the footing beam for bearing the whole of seismic force a working on the building, and only a long-term load b is borne by the steel framework.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a building in which a steel structure and a reinforced concrete structure are mixed.

[0002]

2. Description of the Related Art Steel frames and reinforced concrete are mixed in a frame of a building having a two-dimensional structure, and all of the seismic force (horizontal force) acting on the building is borne by a reinforced concrete wall. Japanese Patent Application Laid-Open No. 7-27 discloses a method of reducing costs by reducing the amount of steel frames by applying only a long-term load (vertical load) to a steel frame made of beams.
9247.

[0003] However, in this conventional example, a steel frame is formed in a grid shape in a plan view by regularly arranging steel columns and beams, and a reinforced concrete wall is located in a structure composed of the columns and beams. (Earthquake-resistant walls) are distributed in a plane, and foundation beams are respectively constructed at the outer periphery of the building and at positions along the lower end of the wall so that seismic forces acting on the building are borne by the walls. On the other hand, the wall, the beam and the column and the beam located along the upper end of the wall are all pin-jointed so that only long-term load is applied to the steel frame.

[0004] Therefore, in this conventional example, the positions of the columns and the positions of the foundation beams are limited to the grid-like arrangement based on a right angle, and there is a problem that the degree of freedom of the planar shape of the building is low. Was. In addition, the position of the pillars is limited to a grid shape, and the walls in the structure surrounded by the pillars and beams become obstacles to the horizontal flow lines, so the use of the walls is staircase room, elevator shaft Therefore, it is limited to the equipment pipe shaft and the like, and the degree of freedom of the floor plan (floor layout) inside the building must be low.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above points, and an object of the present invention is to provide a reinforced concrete wall which is not located in a column-beam structure. In other words, by effectively utilizing the outside wall of the building, which is treated as a so-called secondary wall, which cannot be evaluated as a seismic wall according to the design guidelines of the Architectural Institute of Japan, the degree of freedom of the plane shape of the building and the plane inside the building An object of the present invention is to provide a structure of a building capable of increasing a degree of freedom in planning.

[0006]

The technical measures taken by the present invention to solve the above-mentioned problems are as follows. That is, the structure of the building according to the first aspect of the present invention includes a steel frame having steel columns and beams, and a reinforced concrete wall located outside the construction surface composed of the columns and beams of the steel frame. , A foundation beam provided only at the position along the lower end of the wall, and a foundation provided at the bottom of the steel column,
A roof slab supported by the wall and a steel frame, wherein the walls are provided at appropriate intervals in two directions perpendicular to each other, and between upper end portions of a plurality of adjacent walls in the in-plane direction. By rigidly connecting the lower end of the wall to the foundation beam without installing a beam at the base, an inverted ramen structure is composed of the adjacent walls and the foundation beam, and the seismic force acting on the building with the inverted ramen structure , And only a long-term load is applied to the steel frame.

According to a second aspect of the present invention, there is provided a structure of a building having a steel frame having steel columns and beams, and a reinforced concrete wall located outside of the structure comprising the columns and beams of the steel frame. And a foundation beam provided only at a position along the lower end of the wall, a foundation provided at a lower part of the steel column,
A roof slab supported by the wall and a steel frame; some of the walls are provided at appropriate intervals in a rectangular shape in plan view; and some of the walls are circular in plan view. Is provided at appropriate intervals in the in-plane direction, by rigidly connecting the lower end of the wall to the foundation beam without erection of the beam between the upper ends of the plurality of adjacent walls in the in-plane direction. The wall and the foundation beam constitute a rectangular inverted-frame structure in plan view and a circular inverted-frame structure in plan view, and bear all seismic force acting on the building with these inverted frame structures, and the steel frame is Is characterized in that only long-term loads are borne.

[0008] In the invention according to claims 1 and 2,
The inverted ramen structure means a ramen structure that is turned upside down as described later. Further, the foundation provided at the lower part of the steel column may be either an independent foundation or a cloth foundation, or a mixture of the independent foundation and the cloth foundation.

According to the configuration of the first aspect of the present invention, a plurality of walls, which are formed of columns and beams and are located outside the construction plane, and a foundation beam positioned between the lower ends thereof, that is, an inverted rigid frame structure, that is, A frame structure is constructed by reversing the normal frame structure consisting of reinforced concrete wall columns and beams erected between its upper ends, as if it were turned upside down. Since only long-term loads are borne, the steel columns only support the roof slab, and the positions of the columns can be set arbitrarily regardless of the positions of the walls and foundation beams. Therefore, the degree of freedom of the planar shape of the building is improved, and the planar shape of the building can be freely planned, such as a circle or an ellipse, as well as a shape based on a right angle.

In addition, since the position of the column can be arbitrarily planned and the plurality of walls and the foundation beams located outside the construction form an inverted frame structure, the wall does not become an obstacle to the horizontal flow line. In addition, since the restrictions on the application of the wall are small, the degree of freedom in the plan (plan) of the interior of the building is improved.

[0011] In particular, according to the structure of the invention described in claim 2, in addition to the above advantages, the inside of the rectangular inverted inversion frame structure in plan view or the interior of the inverted inverted frame structure in circular shape in plan view is rectangular. Since it is possible to obtain a unique flat-shaped building formed in a room or a circular room, the building is suitable as a building in which the individuality of appearance and layout is emphasized, such as a clubhouse of a golf course, a hot spring facility, a restaurant, and the like.

[0012]

1 to 3 show an example of the structure of a building according to the first aspect of the present invention. This building is
A steel frame A having steel columns 1 and beams 2, and a reinforced concrete wall positioned non-parallel to the adjacent structure S in addition to the structure S constituted by the columns and beams of the steel frame A 3, a foundation beam 4 provided only at a position along the lower end of the wall 3, a foundation 5 provided below the steel column 1, and a roof slab 6 supported by the wall 3 and the steel frame A. And In the example of FIG. 1, the roof slab 6 is formed in a rectangular shape in a plan view. GL indicates the ground.

The walls 3 are provided at appropriate intervals in two directions perpendicular to each other (in the illustrated example, two directions of the long side and the short side of the roof slab 6). Opening 7, which secures a horizontal flow line between the walls 3,
That is, the opening 7 having a size that can be used as an entrance to a room is formed.

As shown in FIGS. 2A and 2B, in both the X direction and the Y direction, a beam is provided between the upper ends of a plurality of adjacent walls 3 in the in-plane direction. To
The lower end of the wall 3 is rigidly connected to the foundation beam 4 so that a plurality of adjacent walls 3 and the foundation beam 4 are inverted rigid frame structures (reinforced concrete wall columns and the upper ends thereof) which are seismic elements. (A rigid frame structure) as if the normal frame structure composed of folded beams were turned upside down) and a roof slab such that a horizontal force was transmitted between the upper end of each wall 3 and the roof slab 6. 6, while the inverted frame structure B is configured to bear all of the seismic force a acting on the building, the column 1 and the beam 2 are formed as pin joints as shown in FIG. The steel frame A is configured to bear only the long-term load b. All of the foundations 5 provided at the lower part of the column 1 are independent foundations as shown in FIG. 3, but a cloth foundation may be adopted. May be implemented.

According to the above configuration, the inverted ramen structure B is constituted by the plurality of walls 3 located outside the structural surface S composed of the pillars and the foundation beams 4 located between the lower ends thereof. Since the steel frame A bears only the long-term load b, the steel frame A only supports the roof slab 6, and the position of the column 1 is It can be set arbitrarily irrespective of the position of 3 or foundation beam 4.

Therefore, the degree of freedom of the plan shape of the building is improved, and the plan shape of the building can be freely planned, such as a circle or an ellipse, as well as a shape based on a right angle. In the example of FIG. 1, the wall 3 is provided in both the X direction and the Y direction.
For example, when the outer wall is attached to the pillar 1, the roof slab 6 is formed in a rectangular shape by constructing the outer wall so as to surround the pillar group located on the outer periphery of the building. In spite of this, it is possible to realize a building having a peculiar planar shape in which the outer wall enters irregularly from the outer periphery of the roof slab 6 to the inside.

Moreover, since the position of the column 1 can be arbitrarily planned and the plurality of walls 3 and the foundation beams 4 located outside the construction surface S constitute the inverted frame structure B, the wall 3 has horizontal flow lines. Because the wall 3 does not become an obstacle and the restrictions on the application of the wall 3 are small, the degree of freedom of the floor plan (layout) inside the building is improved.

FIGS. 4 to 8 show an example of the structure of a building according to the second aspect of the present invention. This building includes a steel frame A having steel columns 1 and beams 2, a reinforced concrete wall 3 located outside a structural surface S composed of columns and beams of the steel frame A, and a lower end of the wall 3. Foundation beam 4 provided only at the position along the part and foundation 5 provided at the lower part of pillar 1
And a roof slab 6 supported by the wall 3 and the steel frame A. The cross-sectional shape of the steel column 1 can be set arbitrarily. However, in the illustrated example, the steel column 1 is provided so that a beam connecting plate for the beam 2 in any direction can be easily provided on the outer surface of the steel column 1. 1 has a circular cross section.

Some of the walls 3 are provided at appropriate intervals in a rectangular shape in plan view, as shown on the left side of FIG. 4, and others are, as shown on the right side of FIG. 5 are provided at appropriate intervals in a circular shape in plan view.
As shown in FIG. 7, an opening (an opening having a size that can be used as an entrance to a room) 7 for securing a horizontal flow line is formed between the walls 3.

As shown in FIGS. 5 to 8, in each of the wall 3 arranged in a rectangular shape in plan view and the wall 3 arranged in a circular shape in plan view, a plurality of adjacent walls in the in-plane direction are provided. 3
The lower end of the wall 3 is rigidly connected to the foundation beam 4 instead of erection of the beam between the upper ends of the walls, so that a plurality of adjacent walls 3 and the foundation beam 4 have a rectangular shape in plan view, which is an earthquake-resistant element. inverted rigid frame structure (FIG 1, as described also in FIG. 2, inverted such rigid frame structure of ordinary noodles structure formed vertically in the reinforced concrete wall pillars and bridged by a beam between the upper end portion) B ₁ and Inverted ramen structure having a circular shape in plan view (this is also a ramen structure in which a normal ramen structure is inverted upside down) B _2, and the upper end of each wall 3 is horizontal with the roof slab 6. The inverted rigid frame structure B is integrated with the roof slab 6 so that the force is transmitted.
_1, B ₂ is arranged to bear all of the seismic force a acting on buildings.

The column 1 and the beam 2 are configured so as to bear only a long-term load b on the steel frame A as a pin joint, similarly to the previous embodiment described with reference to FIG. Pillar 1
All of the foundations 5 provided at the lower part of the above are independent foundations, but a cloth foundation may be adopted, or a part may be an independent foundation and the rest may be implemented as a cloth foundation. W shown by a virtual line in FIGS. 5 to 8 is an outer wall attached to the column 1 and is formed in a plane shape corresponding to the plane shape of the roof slab 6. F ₁ is the first floor of the floor slab.

According to the above-described structure, the plurality of walls 3 located outside the structural surface S composed of the pillars and the foundation beams 4 located between the lower ends thereof have a rectangular inverted rectangular frame in plan view. constitute a structure B ₁ and circular in plan view of the inverted rigid frame structure B _2, these were bear all the seismic forces a, the steel frame a, since the bear only long load b, of steel column 1 Only supports the roof slab 6, and the position of the column 1 can be set arbitrarily regardless of the position of the wall 3 or the foundation beam 4.

Accordingly, the degree of freedom of the plan shape of the building is improved, and the plan shape of the building can be freely planned, such as a circle or an ellipse, as well as a shape based on a right angle. Moreover, since the position of the column 1 can be arbitrarily planned, and the plurality of walls 3 and the foundation beams 4 located outside the construction surface S form the inverted rigid frame structures B ₁ and B ₂ , the wall 3 moves in the horizontal direction. Since the wall 3 does not become an obstacle and the restriction on the application of the wall 3 is small, the degree of freedom of the floor plan (plan) inside the building is improved.

In particular, an inverted frame structure B having a rectangular shape in a plan view.
Because of the _internal and circular in plan view of the inverted internal rigid frame structure B ₂ rectangular room or circular room formed in a specific planar shape building is obtained, for example, golf club house,
It is suitable as a building, such as a hot spring facility or a restaurant, where the individuality of appearance and layout is important.

[0025] Incidentally, buildings shown in FIG. 1 and FIG. 4 is each a one-story, as illustrated in FIG. 9, the floor slab F _n of upstairs husband inversion Frame Structure B _1, B ₂ s By supporting the steel frame A and the floor slab _Fn with pins, it is possible to construct a multi-story building, and the present invention is applicable to a multi-story building.

[0026]

Since the present invention has the above-described structure,
The effect is that the degree of freedom of the plan shape of the building and the degree of freedom of the plan of the inside of the building can be increased.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing the structure of a building according to the present invention.

FIG. 2 is an explanatory diagram of an inverted ramen structure configured in two directions perpendicular to each other.

FIG. 3 is an explanatory view of a steel frame.

FIG. 4 is a schematic plan view of a structure of a building showing another embodiment.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is a sectional view taken along line BB of FIG. 4;

FIG. 7 is a sectional view taken along line CC of FIG. 4;

FIG. 8 is a sectional view taken along line DD of FIG. 4;

FIG. 9 is a schematic cross-sectional view of a structure of a building showing another embodiment.

[Explanation of symbols]

A: steel frame, B, B ₁ , B ₂ ... inverted ramen structure,
S: construction surface, 1 ... pillar, 2 ... beam, 3 ... wall, 4 ... foundation beam, 5 ...
Foundation, 6 ... Roof slab.

Claims (2)

[Claims] 1. A steel frame having a steel frame column and a beam, a reinforced concrete wall located outside the construction plane composed of the column and beam of the steel frame, and a position along the lower end of the wall. Provided foundation beams, a foundation provided under the steel column, and a roof slab supported by the wall and a steel frame, wherein the wall is appropriately spaced in two directions perpendicular to each other. It is provided, and by rigidly connecting the lower end of the wall to the foundation beam without erection of the beam between the upper ends of the plurality of adjacent walls in the in-plane direction, the plurality of adjacent walls and the foundation beam are connected. A structure of a building, comprising an inverted frame structure, wherein the inverted frame structure bears all seismic force acting on the building, and the steel frame bears only a long-term load. 2. A steel frame having a steel column and a beam, a reinforced concrete wall located outside the construction plane composed of the column and the beam of the steel frame, and a position along the lower end of the wall. A provided foundation beam, a foundation provided under the steel column, and a roof slab supported by the wall and a steel frame, some of the walls are appropriately rectangular in plan view. It is provided at intervals, some others are provided at appropriate intervals in a circular shape in plan view, and the beam is not installed between the upper ends of a plurality of adjacent walls in the in-plane direction. By rigidly joining the lower end of the wall to the foundation beam, a plurality of adjacent walls and foundation beams form a rectangular inverted-frame structure in plan view and a circular inverted-frame structure in plan view. The structure bears all seismic forces acting on the building, The structure of the building, characterized in that only long-term loads are applied to the room.