JP2010116701A - Building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To construct a building to effectively resist a seismic load without giving closed-up feeling to people who are in the center of the building. <P>SOLUTION: The building having the center and a peripheral edge around the center includes: a plurality of inner columns provided in the center with intervals in the circumferential direction of the center; beams provided between two adjacent inner columns; first slabs surrounding the center and connected to at least one of the inner column and beam; and second slabs provided between the first slabs and the peripheral edge. The thickness of the first slab is thicker than that of the second slab. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a building.

Conventionally, a high-rise building has a central portion and a peripheral edge around the central portion, and a seismic wall that surrounds the central portion, and an outer peripheral frame that is provided at the peripheral portion and surrounds the earthquake-resistant wall. Some include (see Patent Document 1).
Japanese Unexamined Patent Publication No. 7-26786

  The seismic wall can increase the bending rigidity of the central portion, and the building can effectively resist the seismic force when the building receives a horizontal seismic force. For this reason, the number of columns necessary for the region between the central portion and the peripheral portion can be reduced, or no columns can be required in the region. Thereby, the said area | region can be utilized effectively, without receiving restrictions of a pillar. However, the seismic wall deteriorates the daylighting, ventilation, and line of sight in the central part, gives the person in the central part a feeling of blockage, and makes the person in the central part uncomfortable.

  An object of the present invention is to enable the building to effectively resist seismic force without giving a sense of blockage to a person in the center of the building.

  In the present invention, instead of the seismic wall surrounding the central part of the building, the central part is provided between a plurality of inner pillars provided at intervals in the circumferential direction and two inner pillars adjacent to each other. The bending rigidity of the central portion is increased by the beam and the first slab surrounding the central portion. This enables the building to effectively resist seismic forces without giving the person in the center a feeling of blockage.

  According to the present invention, a building having a central portion and a peripheral portion around the central portion is adjacent to each other with a plurality of inner pillars provided in the central portion at intervals in the circumferential direction of the central portion. A beam provided between two inner pillars, a first slab surrounding the central portion and connected to at least one of the inner pillar and the beam, and provided between the first slab and the peripheral edge. The first slab is thicker than the second slab.

  The first slab reinforces the inner pillar and the beam. The inner pillar, the beam, and the first slab can increase the bending rigidity of the central portion, and the building can effectively resist seismic force. In addition, an opening can be provided in a region defined by two adjacent inner pillars and a beam provided between them, and the opening can improve the lighting, ventilation, or line of sight of the central portion. it can. For this reason, the said center part can be made open and it can avoid giving a feeling of obstruction to the person in the said center part.

  The second slab provided between the first slab and the peripheral portion has a shorter span length than a conventional slab provided between the central portion and the peripheral portion. For this reason, the thickness of the second slab can be made thinner than the thickness of the conventional slab, and the height of the lower surface of the second slab can be increased. Thereby, the space below the second slab can be widened in the vertical direction, and the space can be used effectively.

  The thickness of the first slab may gradually decrease from the central portion toward the outside. Thereby, the difference between the thickness of the first slab and the thickness of the second slab at the boundary portion between the first slab and the second slab can be reduced, and the inner column, the first beam, and the It is possible to prevent stress concentration from occurring in the boundary portion due to the horizontal force that the first slab receives during an earthquake, and it is possible to prevent cracks from occurring in the boundary portion.

  The first slab is formed with a frame-shaped plate, a pair of first ribs extending in the circumferential direction of the plate, and a space between the first ribs. And each of the plurality of second ribs orthogonal to the first rib. The first rib and the second rib reinforce the plate. Accordingly, the first slab can reinforce the inner column and the beam even if the cross-sectional area is relatively small. For this reason, the first slab can be reduced in weight.

  According to the present invention, a building having a central portion having a quadrangular planar shape and a peripheral portion around the central portion has a plurality of inner pillars provided in the central portion at intervals in the circumferential direction of the central portion. A plurality of inner pillars including four first inner pillars positioned at the corners of the central portion, and a plurality of outer pillars provided at intervals on the peripheral edge, each of which is the first inner pillar. A plurality of outer columns including a plurality of first outer columns located on a straight line connecting the columns in the vertical direction and a plurality of second outer columns each positioned on a straight line connecting the first inner columns in the horizontal direction; A first beam provided between two adjacent inner pillars, the first inner pillar and the first outer pillar adjacent to each other in the longitudinal direction, and the first adjacent to each other in the lateral direction. A second beam provided between an inner column and the second outer column, and two outer columns adjacent to each other. Three beams, a first slab surrounding the central portion and connected to at least one of the inner column and the first beam, and a second slab provided between the first slab and the peripheral portion The first slab is thicker than the second slab.

  According to the present invention, the building has a plurality of inner pillars provided at a central portion thereof at intervals in the circumferential direction of the central portion, and a beam provided between two adjacent inner pillars, A first slab surrounding the central portion, and the bending rigidity of the central portion can be increased by the inner pillar, the beam and the first slab. For this reason, the said building can resist a seismic force effectively, without giving a feeling of blockage to the person in the said center part like the case where the said center part is surrounded by the earthquake-resistant wall.

  As shown in FIG. 1, there is a building 14 having a central portion 10 and a peripheral edge portion 12 around the central portion. The building 14 includes a plurality of inner pillars 16 and 18 provided in the central part 10 at intervals in the circumferential direction of the central part, and beams provided between the two inner pillars 16 and 18 adjacent to each other (first beams). 1 beam) 20, a first slab 22 surrounding the central portion 10, and a second slab 24 provided between the first slab and the peripheral portion 12.

  The central portion 10 has a quadrangular planar shape. The inner pillars 16 and 18 include four first inner pillars 16 located at the corners of the central portion 10 and at least one second inner pillar 18 located between the two first inner pillars 16 adjacent to each other. Including. The center part 10 consists of a colonnade.

  The peripheral edge portion 12 has a planar shape that is substantially equal to the central portion 10. The building 14 has a plurality of outer pillars 26, 28, and 30 that are provided at intervals in the peripheral edge portion 12. The outer pillars 26, 28, 30 are each a plurality of first outer pillars 26 positioned on a straight line connecting the first inner pillar 16 in the vertical direction (vertical direction in FIG. 1), and each of the outer pillars 26, 28, 30. Between a plurality of second outer pillars 28 located on a straight line connecting in the lateral direction (left-right direction in FIG. 1), between two first outer pillars 26 adjacent to each other, and between two second outer pillars 28 adjacent to each other. And a plurality of third outer pillars 30 located between the first outer pillars 26 and the second outer pillars 28 adjacent to each other.

  The building 14 is provided between the first inner column 16 and the first outer column 26 adjacent to each other in the vertical direction and between the first inner column 16 and the second outer column 28 adjacent to each other in the horizontal direction. It includes a second beam 32 provided and a third beam 34 provided between the two outer pillars 26, 28, 30 adjacent to each other.

  The first slab 22 is connected to both the inner pillars 16 and 18 and the first beam 20. As shown in FIG. 2, the first slab 22 is thicker than the second slab 24. The first slab 22 reinforces the inner pillars 16 and 18 and the first beam 20. The first slab 22 is supported by the second beam 32.

  The building 14 includes a plurality of inner pillars 16 and 18 provided in the central portion 10 at intervals in the circumferential direction, and a first beam 20 provided between two inner pillars 16 and 18 adjacent to each other. Because of the first slab 22 surrounding the central portion 10, the inner pillars 16, 18, the first beam 20, and the first slab 22 are used by a seismic wall (not shown) surrounding the central portion of the building that has been conventionally required. Without this, the bending rigidity of the central portion 10 can be increased. For this reason, by providing openings (not shown) in the two inner pillars 16 and 18 adjacent to each other, it is possible to improve daylighting, ventilation and line of sight, and to give people who are in the central portion 10 a feeling of blockage. There can be no.

  Further, by increasing the bending rigidity of the central portion 10, the building 14 can effectively resist the horizontal force received during an earthquake. For this reason, the number of columns required for the region between the central portion 10 and the peripheral portion 12 can be reduced, or no column can be required in the region. Thereby, the said area | region can be utilized effectively, without receiving restrictions of a pillar.

  Between the first inner pillar 16, the first outer pillar 26, the first beam 20 between the two inner pillars 16 and 18 adjacent to each other in the longitudinal direction, and between the first inner pillar 16 and the first outer pillar 26. The second beam 32 constitutes a rigid frame structure that resists the vertical component of the horizontal force received by the building 14 during an earthquake. In addition, the first inner pillar 16, the second outer pillar 28, the first beam 20 between the two inner pillars 16 and 18 adjacent to each other in the lateral direction, the first inner pillar 16 and the second outer pillar 28, The second beam 32 in between constitutes a rigid frame structure that resists the lateral component of the horizontal force. Each of the inner columns 16 and 18, the outer columns 26, 28 and 30, the first beam 20, the second beam 32 and the third beam 34 is made of reinforced concrete.

  The upper surface of the first slab 22 is flat and is located at the same height as the upper surface of the second slab 24. As shown in FIG. 2, the thickness of the first slab 22 gradually decreases from the central portion 10 toward the outside thereof. Thereby, the difference of the cross-sectional shape of the 1st slab 22 and the cross-sectional shape of the 2nd slab 24 in the boundary part of the 1st slab 22 and the 2nd slab 24 can be made small, and the inner pillars 16 and 18, When one beam 20 and the first slab 22 receive a seismic force, it is possible to prevent stress concentration from occurring at the boundary portion, and it is possible to prevent cracks from occurring at the boundary portion. The thickness of the first slab 22 may be constant instead of the example shown in FIG. 2 that gradually decreases from the central portion 10 toward the outside.

  In the example shown in FIG. 3, the space above the first slab 22 and the space below the first slab 22 are used as a common space 36 such as a corridor, a veranda, etc., and the space above the second slab 24. Each of the spaces below the second slab 24 is used as a living space 38 such as a living room or a bedroom. A wall 42 connected to the outer edge portion 40 of the first slab 22 is provided above and below the first slab 22, and the wall separates the common space 36 and the residential space 38.

  The second slab 24 is supported by the first slab 22 and the third beam 34. For this reason, compared with the case where the 2nd slab 24 is supported by the 1st beam 20 and the 3rd beam 34 like the conventional building, the span length of the 2nd slab 24 is short, and the thickness of the 2nd slab 24 is. Can be made thinner. Thereby, the height of the lower surface of the 2nd slab 24 can be made high, and the dwelling space 38 can be enlarged in the up-down direction.

  The lower surface of the first slab 22 is horizontal at the outer edge portion 40 of the first slab, and when the wall 42 has a horizontal upper end surface, the wall 42 disposed below the first slab 22 and the outer edge of the first slab 22 There is no gap between the portion 40 and the wall 42 and the outer edge portion 40 of the first slab 22 can be easily connected. A recess 44 is provided on the upper surface of the first slab 22, and a pipe (not shown) extending from the residential space 38 to the common space 36 is disposed in the recess. A floor plate 46 is disposed on each of the first slab 22 and the second slab 24.

  In the example shown in FIGS. 4 and 5, the first slab 22 has a frame-shaped plate 48 and a lower surface of the plate spaced apart from the example shown in FIG. 3 where the first slab 22 does not have ribs. A pair of first ribs 50 and a plurality of second ribs 52 formed at intervals between the first ribs. One first rib 50 is present at the outer edge portion 40 of the first slab 22, and the other first rib 50 is present at the inner edge portion 54 of the first slab 22. Each first rib 50 extends in the circumferential direction of the plate 48, and each second rib 52 is orthogonal to the first rib 50. The first rib 50 and the second rib 52 reinforce the plate 48. Thereby, even if the cross-sectional area of the 1st slab 22 is comparatively small, the inner pillars 16 and 18 and the 1st beam 20 can be reinforced, and the weight reduction of the 1st slab 22 can be achieved.

  In the example shown in FIG. 1, the first slab 22 is connected to both the inner pillars 16 and 18 and the first beam 20. Instead, the first slab 22 is connected only to the inner pillars 16 and 18. 20 may not be connected. Further, the first slab 22 is connected only to the first beam 20 and may not be connected to the inner pillars 16 and 18. The building 14 is a high-rise building. The 1st slab 22 may be provided in all the layers of the building 14, and may be provided in arbitrary layers.

  In the example shown in FIG. 1, a column does not exist in the region between the central portion 10 and the peripheral portion 12, but instead, a column may exist in the region. For example, another column (not shown) is provided between the first inner column 16 and the first outer column 26 adjacent to each other in the vertical direction, and between the first inner column 16 and the other column, and A beam (not shown) may be provided between each of the other columns and the first outer column 26. Further, another column (not shown) is provided between the first inner column 16 and the second outer column 28 adjacent to each other in the lateral direction, and between the first inner column 16 and the other column and A beam (not shown) may be provided between each of the other columns and the second outer column 28.

  The third outer pillar 30 located between the two first outer pillars 26 adjacent to each other is on a straight line connecting the second inner pillars 18 in the longitudinal direction, and between the two second outer pillars 28 adjacent to each other. The third outer pillar 30 located at is located on a straight line connecting the second inner pillars 18 in the lateral direction. In the example shown in FIG. 1, between the second inner column 18 and the third outer column 30 adjacent to each other in the vertical direction and between the second inner column 18 and the third outer column 30 adjacent to each other in the horizontal direction. No beam is provided between them, but instead, a beam (not shown) is provided between the second inner column 18 and the third outer column 30 adjacent to each other in the longitudinal direction. Alternatively, a beam (not shown) may be provided between the second inner pillar 18 and the third outer pillar 30 adjacent to each other in the lateral direction.

  In the example shown in FIG. 1, the planar shape of the central portion 10 is a quadrangle, but instead, it may be another polygon such as a triangle or a pentagon, or may be a circle. Further, in the example shown in FIG. 1, the planar shape of the peripheral edge portion 12 is an octagon, but instead, it may be another polygon such as a triangle, a quadrangle, or a pentagon, or a circle.

The top view of the building which concerns on 1st Example of this invention. Sectional drawing of the building in the line 2 of FIG. Sectional drawing of the building which concerns on 2nd Example of this invention. Sectional drawing of the building which concerns on 3rd Example of this invention. The top view of the building in the line 5 of FIG.

Explanation of symbols

10 Central part 12 Peripheral part 14 Building 16, 18 Inner pillar 20 Beam (first beam)
22 1st slab 24 2nd slab 26 1st outer pillar 28 2nd outer pillar 30 3rd outer pillar 32 2nd beam 34 3rd beam 48 Plate 50 1st rib 52 2nd rib

Claims (4)

A building having a central part and a peripheral part around the central part,
A plurality of inner pillars provided in the central portion at intervals in the circumferential direction of the central portion;
A beam provided between two inner pillars adjacent to each other;
A first slab that surrounds the central portion and is connected to at least one of the inner column and the beam; and a second slab provided between the first slab and the peripheral portion;
The first slab is thicker than the second slab.   The building according to claim 1, wherein the thickness of the first slab gradually decreases from the central portion toward the outside.   The first slab is formed with a frame-shaped plate, a pair of first ribs extending in the circumferential direction of the plate, and a space between the first ribs. The building according to claim 1, wherein the building is formed of a plurality of second ribs each orthogonal to the first rib. A building having a central portion having a square planar shape and a peripheral portion around the central portion,
A plurality of inner pillars including four first inner pillars located at corners of the central part, the inner pillars being provided in the central part at intervals in the circumferential direction of the central part;
A plurality of outer pillars provided at intervals on the peripheral edge, each of which is located on a straight line connecting the first inner pillars in the longitudinal direction, and each of the first outer pillars is the first inner pillar. A plurality of outer pillars including a plurality of second outer pillars located on a straight line connecting in the lateral direction;
A first beam provided between two adjacent inner pillars, the first inner pillar and the first outer pillar adjacent to each other in the longitudinal direction, and the first adjacent to each other in the lateral direction. A second beam provided between an inner column and the second outer column, a third beam provided between two outer columns adjacent to each other,
A first slab that surrounds the central portion and is connected to at least one of the inner column and the first beam; and a second slab provided between the first slab and the peripheral portion;
The first slab is thicker than the second slab.

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