JP2010116700A - Building with vibrational energy absorbing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively utilize an area, which is specified by a column, another column provided at a spacing from the column and an uppermost beam between the column and another column, by preventing the area from being narrowed by a vibrational energy absorbing device, and to efficiently perform maintenance/control operation of the vibrational energy absorbing device. <P>SOLUTION: This building includes: a first column which has an upward-opened and vertically-elongated hollow portion; a second column which is provided at a spacing from the first column; a plurality of beams which are provided at vertical spacings between the first and second columns; a first member which is arranged in the hollow portion of the first column and elongates upward from the hollow portion; and the vibrational energy absorbing device which is arranged on at least either of the first column or the uppermost beam, one end of which is attached to the first member, and the other end of which is attached to the first column or the uppermost beam. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a building having a vibration energy absorbing device.

Conventionally, a high-rise building has a central part and a peripheral edge around the central part, and includes a seismic wall that surrounds the central part, and a plurality of columns that are provided at intervals around the peripheral part. Some include (see Patent Document 1). A plurality of beams spaced apart in the vertical direction are provided between the earthquake-resistant wall and each column, and each beam is connected to the column via a vibration energy absorbing device. The vibration energy absorbing device has an upper end attached to the beam and a lower end attached to the column.
JP 7-26783 A

  The vibration energy absorbing device comprises a hydraulic cylinder. The hydraulic cylinder includes a cylindrical main body that contains oil, a coaxial shaft disposed inside the main body, a rod extending outward from the main body, and an inner portion of the main body that is connected to the rod. And a fixed piston. Inside the main body, there are two spaces separated by the piston, and the spaces communicate with each other through a passage.

  When the earthquake-resistant wall receives a horizontal force during an earthquake and vibrates, the earthquake-resistant wall is bent and deformed, and the beam is displaced in the vertical direction. Thereby, the piston moves inside the main body, and the oil flows from one space to the other space through the passage. At this time, the oil receives viscous resistance and consumes vibration energy of the building. In this way, the vibration energy absorbing device absorbs the vibration energy.

  By the way, the area defined by the earthquake-resistant wall, the pillar and the uppermost beam is used as a residence or an office. However, since the vibration energy absorbing device exists in the region, the region is narrowed by the vibration energy absorbing device, and the region cannot be used effectively. In addition, the maintenance work of the vibration energy absorbing device must be performed in the area, and the time and method of performing the maintenance work are limited by the use situation of the area. For this reason, the said maintenance work cannot be performed efficiently.

  An object of the present invention is to enable the area to be used effectively and to perform the maintenance work efficiently.

  The present invention, in a building having a pillar, another pillar spaced from the pillar, and a plurality of beams spaced in the vertical direction between the pillar and the other pillar, A vibration energy absorbing device is disposed on at least one of the column and the uppermost beam. Accordingly, the region defined by the pillar, the uppermost beam, and the other pillar is prevented from being narrowed by the vibration energy absorbing device, and the region can be used effectively. In addition, the maintenance work of the vibration energy absorbing device can be performed above the area so that the time and method for performing the maintenance work are not limited by the use situation of the area, and the maintenance work Can be done efficiently.

  The building according to the present invention includes a first pillar having a hollow portion extending upward and downward, a second pillar spaced from the first pillar, the first pillar, and the second pillar. A plurality of beams provided at intervals in the vertical direction, a first member disposed in the hollow portion of the first pillar and extending upward from the hollow portion, the first pillar and the uppermost portion A vibration energy absorbing device disposed on at least one of the beams, having one end attached to the first member and the other end attached to the first column or the uppermost beam. The vibration energy absorbing device absorbs vibration energy generated during an earthquake or strong wind when the first column receives a force from the beam and moves relative to the first member during an earthquake or strong wind.

  When the building receives a horizontal force during an earthquake or a strong wind and vibrates, the first column receives a compressive force and a tensile force alternately from the beam and slightly expands and contracts. Thereby, the first pillar moves relative to the first member. At this time, the vibration energy absorbing device absorbs the vibration energy.

  By the way, the area defined by the first pillar, the uppermost beam and the second pillar is used as a residence or an office. Since the vibration energy absorbing device is disposed on at least one of the first pillar and the uppermost beam, the region is not narrowed by the vibration energy absorbing device, and the region is effectively used. be able to. In addition, the maintenance work of the vibration energy absorbing device can be performed above the area, and the time and method for performing the maintenance work are not limited by the use situation of the area. For this reason, the said maintenance work can be performed efficiently.

  In the building, the first member is spaced from the first pillar when viewed in a horizontal section of the first pillar, and a viscous body is disposed between the first member and the first pillar. Can be. When the first column moves relative to the first member, the first column receives a viscous resistance from the viscous body, and the compressive force and the tensile force are weakened. Thereby, the vibration of the building can be effectively reduced.

  In the building, the hollow portion may be provided only at an upper end portion of the first pillar. In the building, the first member is provided with a second member extending in a horizontal direction from the first member, and the one end of the vibration energy absorbing device is connected to the first member via the second member. It can be attached. The vibration energy absorbing device may be a hydraulic cylinder.

  The vibration energy absorbing device includes a gantry provided on the first pillar or the uppermost beam, a substantially horizontal rod-like member pivotally attached to the gantry and having one end attached to the first member, and an upper end. A part is attached to the other end part of the rod-shaped member, and a lower end part may consist of a hydraulic cylinder attached to the first column or the uppermost beam. The distance from the part pivotally attached to the gantry to the other end is longer than the distance from the pivoted part to the one end.

  According to the present invention, since the vibration energy absorbing device is disposed on at least one of the first column and the uppermost beam, the first column, the uppermost beam, and the second column The defined area is not narrowed by the vibration energy absorbing device, and the area can be used effectively. In addition, the maintenance work of the vibration energy absorbing device can be performed above the area, and the time and method of performing the maintenance work are not limited by the use situation of the area, and the maintenance work can be performed. Can be done efficiently.

  As shown in FIG. 1, a high-rise building 10 is constructed on a foundation 12. The building 10 is vertically spaced between a plurality of pillars 14a, 14b, 14c provided horizontally on the foundation 12 and two pillars 14a, 14b, 14c adjacent to each other. And a plurality of beams 16a, 16b, 16c provided. The columns 14a, 14b, and 14c include an outermost column (first column) 14a and another column (second column) 14b adjacent to the column.

  The beams 16a, 16b, and 16c are a first beam (uppermost beam) 16a located at the uppermost position, and a plurality of second beams 16b that are below the first beam and spaced vertically. And at least one third beam 16c positioned between the first beam 16a and the second beam 16b and between each of the two second beams 16b adjacent to each other. Each of the first beam 16a and the second beam 16b has a larger cross-sectional area and a second moment of section than the third beam 16c. Each column 14a, 14b, 14c is connected to beams 16a, 16b, 16c. Each of the columns 14a, 14b, 14c and the beams 16a, 16b, 16c is made of reinforced concrete.

  Each column 14a, 14b, 14c is supported on the foundation 12 by a seismic isolation device 18. The seismic isolation device 18 is made of a laminated rubber having, for example, alternately stacked steel plates and rubber. The seismic isolation device 18 reduces vibration transmitted from the foundation 12 to the building 10 during an earthquake.

  The 1st pillar 14a has the hollow part 20 open | released upwards and extended in an up-down direction. A first member 22 extending upward from the hollow portion is disposed in the hollow portion 20 of the first column 14a, and a second member 24 extending horizontally from the first member is provided on the first member 22. Yes. A vibration energy absorbing device 26 is disposed on the first beam 16a between the first column 14a and the second column 14b, and one end of the vibration energy absorbing device is connected to the second beam 24 via the second member 24. It is attached to one member 22 and the other end is attached to the first beam 16a.

  As shown in FIG. 2, the vibration energy absorbing device 26 includes a hydraulic cylinder 28. The hydraulic cylinder 28 includes a cylindrical main body 30 that contains oil, a rod 32 that is coaxially disposed inside the main body 30 and extends outward from the main body 30, and a rod that is located inside the main body 30 and is located inside the main body 30. And a piston (not shown) fixed to 32. Inside the main body 30, there are two spaces (not shown) separated by the piston, and the spaces communicate with each other via a passage (not shown). The main body 30 is attached to the first beam 16 a and the rod 32 is attached to the second member 24. Instead, the main body 30 may be attached to the second member 24, and the rod 32 may be attached to the first beam 16a.

  The building 10 vibrates by receiving a horizontal force during an earthquake or a strong wind. At this time, the building 10 is bent so that its upper end is displaced to one side in the horizontal direction (left side in FIG. 1), and the upper end is displaced to the other side (right side in FIG. 1). Repeat bending and deformation. At this time, since the first column 14a is connected to the beams 16a, 16b, and 16c, it receives a force from the beams 16a, 16b, and 16c. That is, when the upper end of the building 10 is displaced to the one side, the first pillar 14a on the one side (the first pillar 14a on the left side in FIG. 1) receives a compressive force from the beams 16a, 16b, and 16c. The first pillar 14a on the other side (the first pillar 14a on the right side in FIG. 1) receives a tensile force from the beams 16a, 16b, and 16c. When the upper end of the building 10 is displaced to the other side, the first column 14a on the one side receives a tensile force from the beams 16a, 16b, and 16c, and the first column 14a on the other side is A compressive force is received from the beams 16a, 16b, and 16c. Thus, the first column 14a receives the compressive force and the tensile force alternately from the beams 16a, 16b, and 16c. Thereby, the 1st pillar 14a is expanded and contracted slightly on the whole. On the other hand, the first member 22 is not connected to the beams 16a, 16b, and 16c, and does not receive the compressive force and the tensile force from the beams 16a, 16b, and 16c. Thus, the first member 22 does not expand or contract as a whole when the first column 14a receives the compressive force and the tensile force alternately from the beams 16a, 16b, and 16c. Thus, when the first pillar 14a receives the compression force and the tensile force alternately from the beams 16a, 16b, and 16c, the first pillar 14a expands and contracts as a whole, whereas the first member 22 , Does not expand and contract as a whole. For this reason, the first pillar 14a is displaced in the vertical direction with respect to the first member 22 as the first pillar 14a expands and contracts by alternately receiving the compressive force and the tensile force from the beams 16a, 16b, and 16c. .

  In addition, since the cross-sectional area and the cross-sectional secondary moment of the first beam 16a and the second beam 16b are larger than the cross-sectional area and the cross-sectional secondary moment of the third beam 16c, when the building 10 receives the horizontal force, the building 10 Of the first beam 16a, the second beam 16b, and the third beam 16c, the horizontal force is borne mainly by the first beam 16a and the second beam 16b. Therefore, the first column 14a receives the compressive force and the tensile force mainly from the first beam 16a and the second beam 16b. The cross-sectional area and the secondary moment of the first beam 16a and the second beam 16b are larger than the cross-sectional area and the secondary moment of the third beam 16c, instead of the example shown in FIG. It may be equal to the cross-sectional second moment.

  When the first column 14a receives the compression force (FIG. 3 shows the first column 14a before receiving the compression force by a broken line, and the first column 14a after receiving the compression force by a solid line. ), The first column 14a is slightly contracted and the first beam 16a is displaced downward. However, the first member 22 is not subjected to the compressive force, and therefore does not contract, and the height of the second member 24 is does not change. For this reason, the space | interval between the 1st beam 16a and the 2nd member 24 becomes long compared with the said space | interval before the 1st pillar 14a receives the said compression force. On the other hand, when the first column 14a receives the tensile force (FIG. 4 shows the first column 14a before receiving the tensile force with a broken line, and the first column 14a after receiving the tensile force. ), The first column 14a extends slightly and the first beam 16a displaces upward, but the first member 22 does not receive the tensile force, so it does not extend and the second member The height of 24 does not change. For this reason, the space | interval between the 1st beam 16a and the 2nd member 24 becomes short compared with the said space | interval before the 1st pillar 14a receives the said tensile force. Thus, the space | interval between the 1st beam 16a and the 2nd member 24 changes.

  As the distance between the first beam 16a and the second member 24 changes, the hydraulic cylinder 28 expands and contracts. That is, the hydraulic cylinder 28 expands when the first column 14a is compressed and the interval becomes long, and contracts when the first column 14a is pulled and the interval becomes short. When the hydraulic cylinder 28 expands and contracts, the piston moves inside the main body 30 and the oil flows from one space to the other space through the passage. At this time, the oil receives viscous resistance and the vibration energy of the building 10 is consumed, and the vibration of the building 10 is reduced. As described above, the vibration energy absorbing device 26 is generated at the time of the earthquake or the strong wind when the first column 14a is moved with respect to the first member 22 by receiving the force from the beams 16a, 16b and 16c at the time of the earthquake or the strong wind. Absorbs the vibration energy. That is, in the vibration energy absorbing device 26, when the first column 14a receives the compressive force and the tensile force alternately from the beams 16a, 16b, and 16c, the first column 14a expands and contracts as a whole. The vibration energy is absorbed by utilizing the fact that the first member 22 does not expand and contract as a whole.

  The area defined by the first pillar 14a, the second pillar 14b, and the first beam 16a is used as a residence or an office. Since the vibration energy absorbing device 26 is disposed on the first beam 16a, that is, above the region, the region is not narrowed by the vibration energy absorbing device 26, and the region is effectively used. be able to.

  Since the vibration energy absorbing device 26 is disposed on the first beam 16a, the maintenance work of the vibration energy absorbing device 26 can be performed above the region. For this reason, the time and method for performing the maintenance work are not limited by the usage status of the area, and the maintenance work can be performed efficiently.

  Instead of the example shown in FIG. 2 in which the vibration energy absorbing device 26 is disposed on the first beam 16a, the vibration energy absorbing device 26 is disposed on the first column 14a. The end may be attached to the first pillar 14a. Further, instead of the example shown in FIG. 2 in which the one end of the vibration energy absorbing device 26 is attached to the first member 22 via the second member 24, the second member 24 is provided on the first member 22. Alternatively, the one end portion of the vibration energy absorbing device 26 may be directly attached to the first member 22 without the second member 24 interposed therebetween. The vibration energy absorbing device 26 may be an air damper such as a pneumatic cylinder instead of the oil damper such as the hydraulic cylinder 28 shown in FIG. 2, such as a viscoelastic damper or an elasto-plastic damper. It may consist of other dampers.

  As shown in FIG. 5, the first member 22 is spaced from the first column when viewed in a horizontal section of the first column 14a, and the first member 22 is viscous between the first member 22 and the first column 14a. A body 34 is arranged. The viscous body 34 is made of oil, asphalt or the like. When the first column 14a repeatedly receives and compresses the compressive force and the tensile force, the first column 14a receives a viscous resistance from the viscous body 34, and the compressive force and the tensile force are weakened. Thereby, the vibration of the building 10 can be reduced more effectively. Instead of the example shown in FIG. 5 in which the viscous member 34 is disposed between the first member 22 and the first column 14a, the viscous member 34 is disposed between the first member 22 and the first column 14a. It does not have to be.

  Instead of the example shown in FIG. 5 in which the first member 22 is spaced from the first column 14a, the first member 22 may not be spaced from the first column 14a. That is, the first member 22 may be in contact with the first pillar 14a. In this case, the frictional resistance generated between the first column 14a and the first member 22 when the first column 14a receives the compressive force and the tensile force during an earthquake or strong wind causes the first column 14a to It is small to the extent that it does not hinder expansion and contraction with respect to one member 22. In the building 10, in order to reduce the frictional resistance, a steel plate (not shown) is attached to each of the inner surface of the first column 14a and the outer surface of the first member 22, and is attached to the inner surface of the first column 14a. The steel plate may be in contact with the steel plate attached to the outer surface of the first member 22. Even if oil for lubrication is applied to at least one of the steel plate attached to the inner surface of the first column 14a and the steel plate attached to the outer surface of the first member 22 in order to further reduce the frictional resistance. Good.

  The lower end of the first member 22 is joined to the lower end of the first column 14a. In the example shown in FIG. 1, the lower end portion of the first member 22 is directly joined to the lower end portion of the first column 14a. Instead, a damper (not shown) is provided at the lower end portion of the first column 14a. It may be joined via. Thereby, the vibration transmitted from the first pillar 14a to the first member 22 can be reduced, and the vibration energy can be absorbed more effectively.

  In the example shown in FIG. 6 instead of the example shown in FIG. 1 in which the hollow part 20 is provided in the entire first pillar 14a, the hollow part 20 is provided only in the upper end part of the first pillar 14a. The middle part and the lower end part of one pillar 14a are solid. Thus, the range in which the hollow part 20 is provided can be changed arbitrarily.

  In the example shown in FIG. 7, the vibration energy absorbing device 26 is replaced with the gantry 36 provided on the first beam 16 a and the fulcrum, instead of the example shown in FIG. Is composed of a substantially horizontal rod-shaped member 38 attached to the first member 22, and a hydraulic cylinder 40 having an upper end portion attached to the other end portion of the rod-like member 38 and a lower end portion attached to the first beam 16a. The distance 42 from the part pivotally attached to the gantry 36 to the other end of the rod-shaped member 38 is longer than the distance 44 from the part pivoted to the one end. The rod-shaped member 38 is attached to the gantry 36 by a pin 46, for example, and can rotate around the pin 46.

  When the first column 14a receives the compression force (FIG. 8 shows the first column 14a before receiving the compression force by a broken line, and the first column 14a after receiving the compression force by a solid line. ), The first pillar 14a is slightly contracted, and the first beam 16a is displaced downward, so that the gantry 36 is slightly displaced downward, and the rod-shaped member 38 rotates around the pin 46. As a result, the other end of the rod-shaped member 38 is displaced downward, and the hydraulic cylinder 40 is contracted. On the other hand, when the first pillar 14a receives the tensile force (FIG. 9 shows the first pillar 14a before receiving the tensile force by a broken line, and the first pillar 14a after receiving the tensile force. ), The first column 14a slightly extends and the first beam 16a is displaced upward, so that the gantry 36 is slightly displaced upward so that the bar-shaped member 38 rotates around the pin 46. To do. Thereby, the said other end part of the rod-shaped member 38 is displaced upwards, and the hydraulic cylinder 40 is extended. The vibration energy is consumed by the expansion and contraction of the hydraulic cylinder 40 in this manner.

  Since the distance 42 from the portion pivotally attached to the gantry 36 to the other end of the rod-like member 38 is longer than the distance 44 from the pivoted portion to the one end, the other end of the rod-like member 38 The amount of displacement in the vertical direction can be made larger than the amount of expansion / contraction of the first pillar 14a. Thereby, the expansion-contraction amount of the hydraulic cylinder 40 can be enlarged, and the said vibration energy can be consumed more effectively.

  The vibration energy absorbing device 26 is disposed on the first column 14a and the first beam 16a, and exists above the region defined by the first column 14a, the second column 14b, and the first beam 16a. For this reason, the region is not narrowed by the vibration energy absorbing device 26, and the region can be used effectively. In addition, the maintenance work of the vibration energy absorbing device 26 can be performed above the area, and the time and method for performing the maintenance work are not limited by the use situation of the area.

  The gantry 36 may be provided on the first column 14a instead of the example shown in FIG. 7 provided on the first beam 16a. In this case, the hydraulic cylinder 40 may be disposed on the first beam 16a, the lower end portion of the hydraulic cylinder 40 may be attached to the first beam 16a, or the hydraulic cylinder 40 may be attached to the first column 14a. The lower end of the hydraulic cylinder 40 may be attached to the first column 14a.

  In the example shown in FIGS. 10 and 11, the building 10 has a central part 48 and a peripheral part 50 around the central part, and is provided in the central part 48 at intervals in the circumferential direction of the central part. It has a plurality of inner pillars 52, 54 and a plurality of outer pillars 56, 58, 60 provided at intervals in the peripheral edge 50. The central portion 48 has a quadrangular planar shape, and the inner pillars 52 and 54 are located between the four first inner pillars 52 located at the corners of the central portion 48 and the two first inner pillars 52 adjacent to each other. And at least one second inner pillar 54 located therein.

  The peripheral portion 50 has a planar shape that is substantially equal to the central portion 48. The outer pillars 56, 58, 60 are each a plurality of first outer pillars 56 positioned on a straight line connecting the first inner pillars 52 in the vertical direction (vertical direction in FIG. 10), and each of the outer pillars 56, 58, 60. Between a plurality of second outer pillars 58 positioned on a straight line connecting in the lateral direction (left and right direction in FIG. 10), between two first outer pillars 56 adjacent to each other, and between two second outer pillars 58 adjacent to each other. And a plurality of third outer columns 60 positioned between the first outer column 56 and the second outer column 58 adjacent to each other. Between the two inner pillars 52 and 54 adjacent to each other, between the first inner pillar 52 and the first outer pillar 56 adjacent to each other in the longitudinal direction, and between the first inner pillar 52 and the second adjacent to each other in the lateral direction. A plurality of beams 62 spaced in the vertical direction are provided between the outer column 58 and between the two outer columns 56, 58, 60 adjacent to each other.

  Each of the 1st outer pillar 56 and the 2nd outer pillar 58 has the hollow part 20 extended to the up-down direction open | released upwards. A first member 22 extending upward from the hollow portion is disposed in the hollow portion 20, and a second member 24 extending horizontally from the first member is provided on the first member 22. Above the uppermost beam 62 of the beams 62 between the second outer column 58 and the first inner column 52 and the uppermost of the beams 62 between the first outer column 56 and the first inner column 52. A vibration energy absorbing device 26 is disposed on each of the beams 62. One end of the vibration energy absorbing device 26 is attached to the first member 22 via the second member 24, and the other end is attached to the uppermost beam 62.

  Each of the first outer column 56 and the second outer column 58 is connected to the beam 62, whereas the first member 22 is not connected to the beam 62. Thereby, when each of the first outer column 56 and the second outer column 58 receives the compressive force and the tensile force alternately from the beam 62 during an earthquake or a strong wind, the first outer column 56 and the second outer column 56 58 is slightly expanded and contracted as a whole, whereas the first member 22 is not expanded and contracted as a whole. Therefore, each of the first outer column 56 and the second outer column 58 receives the compressive force and the tensile force alternately from the beam 62 and slightly expands and contracts as a whole, so that the first member 22 and the second outer column 58 are slightly expanded and contracted. Move. The vibration energy absorbing device 26 includes a hydraulic cylinder. The hydraulic cylinder expands and contracts when the first outer column 56 or the second outer column 58 moves with respect to the first member 22. Thereby, the vibration energy absorbing device 26 absorbs the vibration energy and reduces the vibration of the building 10.

  The building 10 receives the vertical horizontal force in addition to the horizontal horizontal force due to an earthquake or strong wind. The vibration energy absorbing device 26 (FIG. 11) disposed on the uppermost beam 62 between the second outer column 58 and the first inner column 52 absorbs the vibration of the building 10 caused by the horizontal force in the lateral direction. A vibration energy absorbing device (not shown) that is reduced and disposed on the uppermost beam 62 between the first outer column 56 and the first inner column 52 is the building 10 that is generated by the vertical horizontal force. Reduce vibration. The amount of expansion / contraction of the outer columns 56, 58, 60 when the building 10 is bent and deformed by receiving a horizontal force is larger than the amount of expansion / contraction of the inner columns 52, 54. For this reason, when the vibration energy absorbing device 26 absorbs the vibration energy by the expansion and contraction of the first outer column 56 or the second outer column 58, the vibration of the building 10 can be effectively reduced.

  The region defined by the first outer column 56, the first inner column 52 and the uppermost beam 62 between the first outer column 56 and the first inner column 52, and the second outer column 58, the first inner column 52, and The area defined by the uppermost beam 62 between the second outer column 58 and the first inner column 52 is used as a residence or an office. The vibration energy absorbing device 26 is disposed on the uppermost beam 62 between the first outer column 56 and the first inner column 52 or on the uppermost beam 62 between the second outer column 58 and the first inner column 52. Since it is arranged above, the region is not narrowed by the vibration energy absorber 26. For this reason, the said area | region can be utilized effectively. In addition, the maintenance work of the vibration energy absorbing device 26 can be performed above the area, and the time and method of performing the maintenance work are not limited by the use situation of the area, and the maintenance work can be performed. Can be done efficiently.

The front view of the building which concerns on 1st Example of this invention. FIG. 2 is an enlarged view of the vibration energy absorbing device according to the first embodiment of the present invention, taken along line 2 in FIG. 1. The enlarged view of the vibration energy absorber which concerns on 1st Example of this invention when a building vibrates and the one end part is displaced to one side. The enlarged view of the vibration energy absorber which concerns on 1st Example of this invention when a building vibrates and the one end part is displaced to the other side. FIG. 3 is a horizontal sectional view of the first pillar taken along line 5 in FIG. 2. The front view of the building which concerns on 2nd Example of this invention. The enlarged view of the vibration energy absorber which concerns on 3rd Example of this invention. The enlarged view of the vibration energy absorber which concerns on 3rd Example of this invention when a building vibrates and the one end part is displaced to one side. The enlarged view of the vibration energy absorber which concerns on 3rd Example of this invention when a building vibrates and the one end part is displaced to the other side. The horizontal sectional view of the building concerning the 4th example of the present invention. FIG. 11 is a longitudinal sectional view of the building taken along line 11 in FIG. 10.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Building 14a 1st pillar 14b 2nd pillar 16a, 16b Beam 20 Hollow part 22 1st member 24 2nd member 26 Vibration energy absorption device 28, 40 Hydraulic cylinder 34 Viscous body 36 Base 38 Rod-shaped member

Claims (7)

A first pillar having a hollow portion extending in the vertical direction and opened upward;
A second pillar spaced from the first pillar;
A plurality of beams provided in the vertical direction between the first pillar and the second pillar;
A first member disposed in the hollow portion of the first pillar and extending upward from the hollow portion;
Vibration energy absorption disposed on at least one of the first column and the uppermost beam, having one end attached to the first member and the other end attached to the first column or the uppermost beam. Including the device,
The vibration energy absorbing device absorbs vibration energy generated during an earthquake or strong wind when the first column receives a force from the beam and moves relative to the first member during an earthquake or strong wind. .   The first member is spaced from the first column when viewed in a horizontal section of the first column, and a viscous body is disposed between the first member and the first column. The building according to claim 1.   The building according to claim 1, wherein the hollow portion is provided only at an upper end portion of the first pillar.   The first member is provided with a second member extending horizontally from the first member, and the one end of the vibration energy absorbing device is attached to the first member via the second member. The building according to claim 1.   The building according to claim 1, wherein the vibration energy absorbing device comprises a hydraulic cylinder.   The vibration energy absorbing device includes a gantry provided on the first pillar or the uppermost beam, a substantially horizontal rod-like member pivotally attached to the gantry and having one end attached to the first member, and an upper end. The building according to claim 1, wherein a portion is attached to the other end portion of the bar-like member, and a lower end portion is composed of a hydraulic cylinder attached to the first pillar or the uppermost beam.   The building according to claim 6, wherein a distance from a portion pivotally attached to the frame in the rod-shaped member to the other end is longer than a distance from the pivoted portion to the one end.

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