JP2001271509A - High-rise building structure and its skeleton constructing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-rise building structure having a spaciousness by ensuring the view of the outer circumferential section of a building. SOLUTION: A frame is formed of a central frame 12 and a contour frame 14 joined and arranged to the periphery of the central frame 12. In the central frame 12, a damper is assembled, and the central frame 12 is formed in rigidity higher than the contour frame by using a beam 22 having high rigidity. The contour frame 14 is formed by a beam 56 flatter than the beam 22 of the central frame 12 in an outer circumferential section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-rise building structure and a method of constructing a skeleton thereof, and more particularly, to a super-high-rise building structure in which a frame is formed by joining an outer frame around a central frame of the building and a method of constructing the skeleton. About.

[0002]

2. Description of the Related Art In recent years, construction of high-rise buildings represented by high-rise houses has been actively performed.

[0003] In such a super-high-rise house, a frame composed of columns, beams and the like generally adopts a pure ramen structure.

[0004] In such a pure ramen structure, columns and beams on each floor have substantially uniform member cross-sectional dimensions so that seismic force does not concentrate during an earthquake.

[0005] For this reason, the beams at the outer periphery are also equal to the beams at the interior, and the view and openness of the outer periphery, which is the largest selling point of the super high-rise house, may be impaired.

In addition, a beam shape for supporting the floor portion protrudes in the dwelling unit, and there is a case where flexibility for changing various dwelling unit plans or dwelling unit plans is lacking.

SUMMARY OF THE INVENTION An object of the present invention is to provide a high-rise building structure with a sense of openness by securing a view of the outer peripheral portion of the building, and a method of constructing the skeleton.

Another object of the present invention is to provide a super high-rise building structure and a method of constructing a skeleton of the same, which can eliminate beam-shaped protrusions in the dwelling unit and allow flexibility in various dwelling unit plans and changes in dwelling unit plans. Is to do.

[0009]

In order to achieve the above object, a high-rise building structure according to the present invention is characterized in that a frame is formed by a central frame and an outer frame joined and disposed around the central frame. The frame incorporates a vibration damping device, and is formed to have a higher rigidity than the outer frame using a high-rigidity beam, and the outer frame uses a flatter beam at the outer periphery than the beam of the central frame. It is characterized by being formed.

According to the present invention, the central frame incorporating the vibration damping device and having higher rigidity than the outer frame acts as a core rod of the building, and improves the seismic and wind resistance performance, thereby reducing the rigidity of the outer frame. Therefore, a flat beam can be used, and therefore, an open space with improved viewability can be realized.

In this case, a majority of the stress is shared by the central frame, and the stress ratio of the central frame is about 50% to 80%. For example, at a plasticity of 1.0 or 1.2, the outer frame is about 0.47 to 0.25 and the center frame is about 0.53 to 0.75.

In the present invention, a large floor slab may be provided on the center frame and the outer frame so that a floor is formed.

[0013] With such a configuration, the surrounding floor is formed by using a large floor slab erected on the center frame and the outer frame, thereby eliminating the beam shape supporting the middle of the floor and eliminating the protrusion. In addition, it is possible to increase the degree of freedom of space and to provide flexibility in various dwelling unit plans and changes in dwelling unit plans.

In this case, it is preferable that the large floor slab is provided with a step at a substantially central position in the longitudinal direction.

[0015] With this configuration, the step portion functions as a reinforcing rib for the large floor slab.
It is easy to further increase the strength of the large floor slab and further eliminate the beam-shaped protrusion.

In the present invention, between the large floor slabs in the upper layer and the lower layer, a sound insulating partition wall with a built-in support member for connecting the large floor slabs may be provided.

[0017] With this configuration, the upper and lower large floor slabs are connected to each other by the support member of the sound insulating partition wall, thereby suppressing the vibration of the floor and improving the impact sound performance by the sound insulating partition wall. Can be improved.

In this case, it is preferable that at least one of the upper end and the lower end of the support member is connected to the large slab through a vibration damping device that suppresses vertical vibration.

With this configuration, the vibration of the large floor slab can be reliably suppressed by the vibration damping device.

Further, in the method for constructing a skeleton of a high-rise building according to the present invention, a frame is formed by a central frame and an outer frame joined and arranged around the central frame, and the central frame incorporates a vibration damping device. And, the rigidity is formed higher than the outer frame using high-rigidity beams, and the outer frame is a high-rise building that is formed using a flatter beam at the outer periphery than the beam of the central frame. A skeleton building method, wherein columns and beams of the central frame and the outer frame are formed of high-strength concrete, and a floor formed between the central frame and the outer frame has lower strength than high-strength concrete. It is characterized by being formed of concrete.

According to the present invention, high-strength concrete is used for columns and beams of the central frame and the outer frame, and concrete having lower strength than the high-strength concrete is used for a floor formed between the central frame and the outer frame. By using a high-strength material for the part that supports a large load by using, and using a lower strength concrete for the floor that does not support a large load, a reasonable building can be constructed be able to.

In the present invention, a large floor slab is provided on the central frame and the outer frame, and the large floor slab is provided between the central frame and the outer frame corresponding portion, and the central frame and the outer frame corresponding portion. It is preferable to be made of a partially precast concrete in which a concrete ridge is formed between the floor and the floor.

With such a configuration, a large-scale floor slab made of partially precast concrete having a ridge for separating concrete is used to separate the concrete of the floor from the central frame and the outer frame. Since it can be easily performed, and different concretes can be simultaneously poured, the construction efficiency of the concrete on the high floor can be improved, and the construction time and construction cost can be reduced.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 to 10 are views showing a high-rise building structure according to an embodiment of the present invention.

As shown in FIG. 1, the super-high-rise building structure 10 has a framework in which a central frame 12, an outer frame 14, and a sub-frame 16 are bundled.

The central frame 12 is formed in the center of the building, and the space surrounded by the central frame 12 is formed as a stairwell 18.

The central frame 12 has a framework formed by columns 20 and beams 22, and a corridor 24, evacuation stairs 26, an elevator 28, and the like are installed inside the framework.

As shown in FIG. 2, the beam 22 of the central frame 12 is made of a material having a high rigidity and a high beam. The entire central frame 12 is formed to have higher rigidity than the outer frame 14.

The columns 20 and the beams 22 are made of precast concrete made of high-strength concrete.

Further, a vibration damping device such as a vibration damping column 30, a compound vibration damping device 32, a vibration damping wall 34, and the like is incorporated in a structure defined by the column 20 and the beam 22 of the central frame 12. I have.

As shown in FIG. 8A, the vibration damping column 30
Studs 36 supported between upper and lower beams 22 between posts 20
A steel plate having a low yield point steel plate 38 attached by bolts in the middle thereof or a steel plate having a low yield point steel plate 38 attached between studs 36 via a steel material 40 as shown in FIG.

Further, as shown in FIGS. 8 (3) and (4), a structure in which a viscous damper 39 is attached between the studs 36 via a steel material 40 can be adopted.

As the viscous damper 39, for example, a viscous elastic material sandwiched between steel plates can be employed.

In the case of using such a damping column 30, it is possible to form spaces 42 for entering and exiting the corridor 24 on both sides of the damping column 30 on each surface.

As shown in FIG. 9, the composite vibration damping device 32
Mounting members 44a, 44b between the upper and lower beams 22;
The hysteresis damping type low yield point steel plate 38 and the viscous damping type oil damper 46 are arranged in parallel via 44c or the like, and the oil damper 46 absorbs vibration energy such as wind,
The low yield point steel plate 38 absorbs the seismic force at the time of a large earthquake.

In the case of the composite vibration damping device 32, a space 42 for entering and exiting can be secured between at least one of the columns 20 of the structural surface.

As shown in FIG. 10A, a stud 48 is provided between the damping wall 34 and one of the pillars, leaving a space 42 for entering and exiting, and the stud 48 and the upper and lower beams 22 are provided.
And a low yield point steel plate 50 in a space surrounded by the other pillar 20.
Is to be attached.

In this case, both sides of the low yield point steel plate 50
Stud 4 formed by cast-in-place concrete
8 and a joint 52 formed between the other column 20 and the low-yield-point steel plate 50.

Further, such a damping wall 34 may be connected linearly in the upper layer and the lower layer, or may be arranged in a grid pattern in the upper layer and the lower layer as shown in FIG. It is possible.

The outer frame 14 is composed of four frames joined around the center frame 12.

As shown in FIG. 2, each outer frame 14 has a frame formed by columns 54 and beams 56.
It is flat and wide with a beam lower than that of 2.

This is because the central frame 12 incorporating the vibration damping device functions as a core rod of the building and improves the seismic and wind resistance performance, so that it is possible to reduce the beam width of the beam 56 of the outer frame. , And an open space in which the space is improved can be realized.

Further, by making the beam 56 wider, the performance as a beam can be maintained even in a state where the beam is reduced.

The columns 54 and beams 56 are made of precast concrete made of high-strength concrete.

The column 54 has a lower rigidity than the column 20 of the center frame 12 depending on the floor.

The sub-frame 16 has a framework composed of columns 58 and beams 60 and is in a state of being joined to the outer frame 14.

The beam 60 in the sub-frame 16 is
A beam with a reduced beam is used.

Therefore, also in this sub-frame 16, an open space with an improved view can be realized.

The columns 58 and beams 60 are made of precast concrete using high-strength concrete.

Also, the pillar 58 having a lower rigidity than the pillar 20 of the central frame 12 is appropriately used according to the story.

A large floor slab 62 is provided on the central frame 12 and the outer frame 14 thus formed to form a floor portion 64.

As shown in FIG. 3 and FIG. 4, the large floor slab 62 is made of partially precast
Plate portion 66 having a length from the outer periphery of the outer frame 14
Are placed on the beams 22, 56,
At a substantially central position in the longitudinal direction of the plate portion 66, a step portion 70 is provided in a direction orthogonal to the longitudinal direction.
Function as reinforcing ribs of the plate portion 66.

A plurality of ribs 72 containing PC steel wires are provided on the upper surface of the plate portion 66 so as to reinforce the plate portion 66.

Further, a pair of fixing ridges 76 for fixing the pre-assembly upper streaks 74 are provided near the step portion 70, and concrete split ridges 78 are provided near both ends of the plate portion 66. A plurality of upper pre-assembly streaks 74 are provided between the fixing ridges 76 and the concrete staking ridges 78.

Then, cast-in-place concrete is cast on the large floor slab 62 to form a floor portion 64.

Next, a description will be given of a method of constructing a skeleton of a super-high-rise building in which a frame is formed by the central frame 12 and the outer frame 14.

First, the columns 20, 54 and the beams 22, 56 of the central frame 12 and the outer frame 14 are preliminarily manufactured at a factory using high-strength concrete and made of precast concrete.

The large floor slab 62 is also manufactured at a factory in advance and made of partially precast concrete.

At the construction site, first, columns 20 are erected at predetermined positions at the positions where the central frame 12 is constructed, and beams 22 are erected on the columns 20 to construct the central frame 12 for one layer.

Further, columns 54 are erected at the construction positions of the respective outer frames 14 at the outer peripheral position of the central frame 12, and beams 56 are erected on the columns 54 so that the four outer frames 14 To build.

Next, the beam 22 of the constructed central frame 12 is
And a large floor slab 62 is erected around the beam 56 of the outer frame 14.

In this state, on the upper surface of the large floor slab 62, there are provided ridges 78 for separating the concrete near both ends thereof. Pillar 20 of frame 12
High-strength concrete is cast in place on the beam 22 side and the column 54 and beam 56 side on the outer peripheral side of the outer frame 14, respectively. Concrete with low strength and generally used strength is cast in place.

As described above, by casting high-strength concrete on the side of the center frame 12 and the outer frame 14,
Pillars 20, 54 of central frame 12 and outer frame 14
The beams 22 and 56 are integrated with each other by high-strength concrete to form a highly rigid structure.

The floor 64 is made of generally used concrete, and it is possible to selectively use concrete having different strengths.

In addition, since the concrete having different strengths is selectively used by using the concrete ridges 78 of the large floor slab 62, a formwork for laying is unnecessary, and in a high-rise building having many floors, Construction time and construction cost can be reduced.

In particular, it is possible to simultaneously cast concretes having different strengths, so that the efficiency of concrete construction on a high floor is improved.

The frame thus formed is a high rigid beam 2 having a large beam on the side of the central frame 12.
2, the outer frame 14 is formed with higher rigidity than the outer frame 14. On the outer frame 14 side, the outer frame is formed using a beam 56 that is flatter and wider than the beam 22 of the central frame 12, There is no large protrusion on the outer peripheral portion of the outer frame 14, so that it is possible to form a living space with an excellent view and an open feeling.

Also, in the subframe 16, the pillar 5
8 is erected, and a beam 60 is erected thereon.
A floor plate made of partially precast (not shown) is erected on the beam 56 of No. 4 and the beam 60 of the sub-frame 16, and a frame can be constructed by pouring cast-in-place concrete.

The column 20 and the beam 2 of the central frame 12
When assembling 2, the vibration damping device will be installed in advance.

In this way, by sequentially building the building from the lower floor to the upper floor, it is possible to build a high-rise building having dwelling units with excellent views and open feeling in a short construction period. It becomes possible.

The frame formed as described above is provided with a sound insulating partition wall 80 at an appropriate position.

As shown in FIGS. 5 to 7, the sound insulating partition wall 80 has a built-in support member 82 for connecting the upper and lower large floor slabs 62 to each other.

This support member 82 connects the upper and lower ends of two steel pipes 84 having a length corresponding to the height between the upper and lower large floor slabs 62 by connecting plates 86a and 86b, and connects the upper end side. The plate 86a is connected to the stepped portion 7 of the upper large floor slab 62.
Bolt 90 with respect to the mounting member 88 mounted on the lower surface of
The connecting plate 86b on the lower end side is fixed to the upper surface of the step 70 of the large floor slab 62 on the lower layer side by bolts 92.

As shown in FIG. 7, the sound insulation partition wall 80 has a plurality of studs 94 and glass wool 9 inside.
6 are disposed and sandwiched between a plurality of gypsum boards 100 adhered by an adhesive 98, and have a high sound insulation effect.

As described above, by connecting the upper and lower large floor slabs 62 by the support members 82 built in the sound insulating partition walls 80, vibration of the large floor slab 62 can be prevented, and the impact sound performance can be improved. It becomes possible.

Further, when the support member 82 is attached, for example, as shown in FIG.
By connecting the upper connecting plate 86a and the mounting member 88 with the vibration damping device 89 sandwiching the viscoelastic body 89b between the two iron plates 89a between the a and the mounting member 88, Vibration of the upper and lower large slabs 62 can be suppressed more reliably.

FIG. 12 shows a high-rise building structure according to another embodiment of the present invention.

In this embodiment, a substantially well-shaped portion indicated by a two-dot chain line in the figure is a central frame 12, and an outer frame 14 is joined to the outer periphery of the central frame 12 so as to surround the central frame 12. No frame is provided.

The center frame 12 also has a pillar 2 inside the Igata.
0 and a beam 22 are provided, and a floor (not shown) is formed on the beam 22.

The outer frame 14 is a flat and wide beam whose outer peripheral beam 56 is lower than the beam 22 of the central frame 12.

As the vibration damping device, only the vibration damping column 30 is used.

The other structure and operation are the same as those of the above-described embodiment, and the description is omitted.

The present invention is not limited to the above embodiment, but can be modified in various forms within the scope of the present invention.

For example, in the first embodiment, the center frame is formed so as to be surrounded by the four outer frames and the four sub-frames. However, the present invention is not limited to this example and includes a part of the outer frame. It is also possible to form as follows.

In the first embodiment, a sub-frame is formed, but a structure in which the sub-frame is omitted may be adopted.

Furthermore, in the above-described embodiment, concrete having different strengths is divided by using a concrete dividing ridge formed on a large floor slab. However, the present invention is not limited to this example. It is also possible to form a formwork and separate them.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a high-rise building structure according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a state of columns, beams, and floors in upper and lower layers.

FIG. 3 is a perspective view of a large floor slab.

FIG. 4 is a side view showing a state in which cast-in-place concrete is cast on the upper surface of a large floor slab to form a floor.

FIG. 5 is a sectional view of the partition wall taken along line VV in FIG. 1;

6 is a cross-sectional view as viewed from the direction of arrow VI in FIG. 5;

FIG. 7 is a cross-sectional view showing the internal structure of the sound insulating partition wall.

8 (1) to 8 (4) are side views each showing a structure of a vibration control column.

FIG. 9 is a front view showing the structure of the combined vibration damping device.

FIG. 10A is a front view showing the structure of the damping wall,
(2) is a front view which shows the arrangement state of the damping wall in each hierarchy.

FIG. 11 is a side view showing a state where a support member of the sound insulation partition wall is attached via a vibration damping device.

FIG. 12 is a cross-sectional view showing a high-rise building structure according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 High-rise building structure 12 Central frame 14 Outer frame 16 Sub-frame 20, 54, 58 Column 22, 56, 60 Beam 30 Damping column 32 Composite damping device 34 Damping wall 62 Large floor slab 64 Floor section 70 Step section 78 Projecting ridges for concrete splitting 80 Sound insulation partition walls 82 Support members

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Claims (7)

[Claims] 1. A frame is formed by a central frame and an outer frame joined and arranged around the central frame. The central frame incorporates a vibration damping device and uses a high-rigidity beam to form the frame. A super-high-rise building structure characterized by being formed to have higher rigidity than an outer frame, wherein the outer frame is formed using a flatter beam at the outer periphery than a beam of the central frame. 2. The high-rise building structure according to claim 1, wherein a large floor slab is provided on the center frame and the outer frame to form a floor. 3. The high-rise building structure according to claim 2, wherein the large-sized floor slab is provided with a step at a substantially central position in a longitudinal direction. 4. The high-rise building according to claim 2, wherein a sound insulating partition wall with a built-in support member for connecting the large-sized floor slabs is provided between the large-sized floor slabs in the upper and lower layers. Construction. 5. The high-rise building structure according to claim 4, wherein at least one of an upper end and a lower end of the support member is connected to the large slab via a vibration damping device that suppresses vertical vibration. 6. A frame is formed by a center frame and an outer frame joined and arranged around the center frame. The center frame incorporates a vibration damping device and uses a high-rigidity beam. An outer frame is formed with higher rigidity than an outer frame, and the outer frame is a method of building a super high-rise building using outer beams that are flatter than the beams of the central frame. A column and a beam of the frame are formed of high-strength concrete, and a floor formed between the central frame and the outer frame is formed of concrete having lower strength than the high-strength concrete. Building frame construction method. 7. The large floor slab according to claim 6, wherein a large floor slab is erected on the central frame and the outer frame, and the large floor slab corresponds to the central frame and the outer frame, and the central frame and the outer frame. A method for constructing a super high-rise building, wherein the part is made of partially precast concrete in which a ridge for separating concrete is formed between a part and a floor part.