JPH0427346B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a frame for a super high-rise building.

(Conventional technology) Up until now, most of the skyscrapers in Japan have been office buildings, but there have been no examples of residential construction exceeding 30 floors. Conventional construction methods can be applied to residential buildings up to the 25th floor as an extension of conventional high-rise buildings, but beyond that, different considerations are required than in the case of office buildings.

In other words, for conventional high-rise buildings, it is said that it is advantageous for earthquake resistance to reduce the weight and create a flexible structure like "Wind in Willows". The structure was composed of a rigid-frame structure in which the direction between the internal beams was either a rigid-frame structure or a shear wall structure with a shear wall between the columns and beams.

(Problem to be solved by the invention) However, especially in the case of a house, livability is the top priority as it is a place where you live all the time, so if it shakes due to strong winds or small earthquakes, it will be bad, so it is necessary to make it less likely to shake. If it is made stronger, it will become heavier and the pillars and beams will become larger, which poses problems such as increased cost and construction planning and the burden on the foundation.Especially in the case of houses, the pillars and beams installed inside There were drawbacks such as restrictions on housing unit plans and floor plans.

SUMMARY OF THE INVENTION Therefore, the present invention aims to improve the drawbacks of the prior art described above and provide a structure for a superhigh-rise building that achieves a combination of seismic resistance and livability.

(Means for Solving the Problems) The gist of the present invention is that the frame of a building is constructed by a plurality of basic unit frames whose outer periphery is surrounded by short span frames and which do not have columns or beams that constitute a rigid frame inside. This is a superhigh-rise building frame in which the structural faces of adjacent basic unit frames are connected to each other so as to share a short span frame.

(Example) Examples of the present invention will be described below based on the drawings. Figure 1 is a plan view showing the outline of the frame structure. The basic unit frame (unit tube) 1 is surrounded by a short span frame 2 in the shape of a birdcage, and has columns and beams that make up a rigid frame inside. A column-free space 3 is constructed. The details of the short span frame 2 will be described later, but it constitutes a rigid frame structure with columns arranged in short spans and beams connecting the columns. The basic unit frame 1 having the above configuration can take a square, triangular or other appropriate shape, and a plurality of basic unit frames are arranged in such a manner that the structural surfaces of adjacent basic unit frames share a short span frame. For example, a rectangular building a, b
It can accommodate various building shapes, such as the cross-shaped building shown in , and the Y-shaped building shown in c.

The basic unit frame 1 made of the short span frame 2 has excellent earthquake resistance and wind resistance, and by making it into an aggregate, general effects are exhibited, and each basic unit frame is pillarless. space 3
An internal plan with a degree of freedom can be obtained to configure the .

Next, a more detailed explanation will be given based on FIGS. 2 to 8, taking as an example a building c in which the basic unit frames are formed into a Y-shaped assembly.

FIG. 2 shows a perspective view of the main parts of the building, and the Y-shaped building c has a triangular basic unit frame 10 placed in the center.
It is composed of an assembly of square basic unit frames 11, 12, and 13 connected to these three sides. The outer periphery of each of these basic unit frames 10 to 13 is vertically defined by each pillar 14 provided at each corner, each pillar 15 provided between the pillars 14, and the beam 16 rigidly connected to these pillars. The short pan frame that makes up the ramen noodles is formed.

Each of the columns 14 and 15 is formed so that one span W is approximately equal to the floor height H, as shown in the plan view of the outer peripheral part of the building shown in FIG. 3 and the same side view shown in FIG. and Pillar 15 are both made of SPC. That is, it has a structure in which reinforcing bars 18 are wrapped around a steel frame 17 and reinforced with concrete 19 around the steel frame 17, and the concrete 19 is high-strength concrete on the lower floors and lightweight concrete on the upper floors.

Further, the beam 16 is of S construction with a fireproof coating 21 applied around an H-beam 20.

Next, the square basic unit frames 11, 12, 1
3, small beams 22 are arranged in parallel in a certain direction, and the small beams 22 have an unbonded prestressed structure as shown in FIG. Pin-jointed. Also, the floor slab 2 that is integrally joined with the small beam 22
4 is an RC structure constructed by pouring heavy concrete using keystone plate waste forms.

Furthermore, as shown in FIG. 6, the outer wall 25 of the building is made of a lightweight PC board or ALC board with an opening 26 and a width extending over two spans. It is attached to the short span frame so as not to be involved in the short span frame.

As shown in FIGS. 3 and 4, a balcony 27 is projected from the outer periphery of the Y-shaped building, and the shapes of the wings made up of the square basic unit frames 11, 12, and 13 are unified. This is done to eliminate twisting.

As shown in Fig. 7, the frame of the super high-rise building with the above configuration consists of three outer shells of square basic unit frames 11, 12, and 13 that surround the entire outer periphery of the Y-shaped building, and a triangular structure on which the core part is installed. The outer periphery of the basic unit frame 10 (square basic unit frames 11, 12,
It is also one side of 13. ) are columns 14 and 15, respectively.
and a beam 16, and the short span frame bears most of the lateral force.

In this case, the short span frame that surrounds the triangular basic unit frame 10 also constitutes one inner side of the square basic unit frame 11, 12, 13 that constitutes each wing, and is shared by this short span frame. By connecting adjacent basic unit frames to each other through the structural surfaces, continuity with each wing is ensured, and the integrity of the Y-shaped building, which is an assembly of each basic unit frame, is ensured, and it is possible to prevent strong winds and This improves livability by suppressing shaking during frequent earthquakes.

Furthermore, the small beams 22 of Antbond help open up the interior by creating a column-free space, contributing to free floor plan design.

In addition, the burden on the foundation is reduced by using the outer wall 25 made of lightweight PC boards and lightweight concrete, etc., and the cross-sections of the columns and beams are made small in consideration of economic efficiency.

In this way, Y
Figure 8 shows the standard floor layout of a letter-shaped building.

In addition, in the frame of the present invention, since the horizontal load borne by the short span frame has directionality, the columns 15
A single H-section steel with webs arranged along the outer circumferential surface may be used, and it can be made cheaper and lighter than assembled columns, round steel pipes, and square steel pipes. Further, the number of columns 15 can be reduced by interrupting some of the columns 15 depending on the strength and rigidity.

(Effects of the Invention) As is clear from the above-mentioned embodiments, in the structure of the superhigh-rise building of the present invention, the outer periphery of each basic unit frame is surrounded by short span frames, and each of these basic unit frames is surrounded by adjacent basic units. By making the structure into an assembly in which the structural surfaces share a short span frame and are connected to each other, it has high rigidity against earthquakes and strong winds, making it excellent for livability.Moreover, unbonded small beams are provided. Since it is possible to form a column-free space inside the building, there is a degree of freedom in planning the dwelling unit, and it is possible to provide a new frame that balances earthquake resistance and livability.

[Brief explanation of drawings]

The drawings all show embodiments of the present invention, and FIG. 1 is a front view showing an outline of the structure of the frame, and FIG.
The figure is a perspective view of the main parts of the building, Figure 3 is a plan view of the outer periphery of the building, Figure 4 is a side view of the building, Figure 5 is a partial sectional view of the floor slab and small beams, and Figure 6 is a PC board. A plan view of the outer wall, FIG. 7 is an explanatory diagram of the characteristics of the building, and FIG. 8 is a plan view showing the layout of the standard floor upon completion. [Explanation of symbols], 1...Basic unit frame, 2...
Short span frame, 3...Columnless space, 10
...Triangular basic unit frame, 11, 12, 13...
Square basic unit frame, 14, 15...column, 16...
...Beam, 22...Small beam, 24...Floor slab, 25...
...Outer wall, 27...Balcony, H...Floor height, W...
…span.

Claims (1)

[Claims] 1 The frame of a building is composed of a plurality of basic unit frames without columns or beams whose outer periphery is surrounded by a short span frame and which constitutes a rigid frame inside, and the structural surface of each adjacent basic unit frame is a short span frame. A superhigh-rise building frame characterized by being connected to each other so as to share a span frame.