JP5847414B2 - Building with diagonal materials - Google Patents

Description

  The present invention relates to a building having diagonal materials.

  In a conventional building, there are a first pillar and a second pillar spaced apart in the horizontal direction, and a diagonal member having one end attached to the first pillar and the other end attached to the second pillar. Some include (see Patent Document 1). The diagonal member receives an axial force from the first column and the second column and resists the axial force while each of the first column and the second column receives a horizontal force during an earthquake. Accordingly, each of the first pillar and the second pillar can withstand the horizontal force. However, the axial force is relatively large, and the diagonal member that resists the axial force is relatively large.

  In other conventional buildings, the first pillar and the second pillar, which are horizontally spaced, are arranged between the first pillar and the second pillar, and one end is fixed to the first pillar. And a diagonal member having one end fixed to the other end of the damper and the other end attached to the second pillar. While each of the first column and the second column is deformed by receiving a horizontal force during an earthquake, the diagonal member receives an axial force from the second column, and the one end portion of the diagonal member has the axial force. Due to the vertical component, the damper is slightly displaced in the vertical direction with respect to the first column, and the damper is deformed by receiving a shearing force from the one end portion of the diagonal member and the first column. Thereby, the vibration energy which acts on each of the 1st pillar and the 2nd pillar at the time of an earthquake can be absorbed.

JP2004-270319

  The deviation of the one end portion of the diagonal member with respect to the first column is very small, and the amount of deformation of the damper is small. Therefore, the shear force that the damper must receive from the one end portion of the diagonal member and the first column in order to absorb a predetermined vibration energy is relatively large, and the damper absorbs the shear force. In order to receive, the diagonal member must receive a relatively large axial force from the second column. For this reason, the diagonal member that resists the axial force cannot be reduced in size, and the building is uneconomical.

  An object of the present invention is to reduce the size of the diagonal member that bears the axial force by reducing the axial force that the diagonal member receives while the column receives a horizontal force during an earthquake.

  In the present invention, the end portion of the diagonal member is fixed to a damper having one end portion fixed to the column and fixed to the other end portion of the overhang member extending in the horizontal direction from the column. As a result, while the column is deformed by receiving a horizontal force during an earthquake, the end of the diagonal member is displaced in the vertical direction with respect to the column, and the other end of the projecting member is moved up and down. In the conventional case, the damper is deformed by receiving shearing force even when displaced in the direction, and the damper is deformed by receiving shearing force only when the end of the diagonal member is displaced vertically with respect to the column. In comparison, the amount of deformation of the damper is increased. This reduces the shear force that the damper must receive in order to absorb the predetermined vibration energy, and reduces the axial force that the diagonal material must receive in order that the damper receives the shear force. The diagonal member that bears the axial force is downsized.

The building according to the present invention is a first pillar and a second pillar that are spaced in the horizontal direction, and an overhang member that is fixed to the first pillar at one end and extends inward in the horizontal direction from the first pillar. A projecting member extending in the horizontal direction from the vertical direction , a damper having one end fixed to the other end of the projecting member, one end fixed to the other end of the damper, and the other end of the second Including diagonals attached to pillars.

  While each of the first column and the second column is deformed by receiving a horizontal force during an earthquake, the diagonal member receives an axial force from the second column, and the one end portion of the diagonal member has the axial force. Due to the vertical component, the first column is slightly shifted in the vertical direction. Further, when the first pillar is deformed by receiving the horizontal force, the other end portion of the projecting member is displaced in the vertical direction. Thus, in addition to the one end portion of the diagonal member being displaced in the vertical direction with respect to the first column, the other end portion of the overhanging member is displaced in the vertical direction, whereby the damper is It is deformed by receiving a shearing force from the one end of the diagonal member and the other end of the overhang member, and absorbs vibration energy acting on each of the first column and the second column during an earthquake.

  In addition to the one end portion of the diagonal member being displaced in the vertical direction with respect to the first column, the damper is also deformed by receiving a shearing force when the other end portion of the projecting member is displaced in the vertical direction. Therefore, the amount of deformation of the damper can be increased as compared with the conventional case where the damper is deformed by receiving a shearing force only when the end of the diagonal member is displaced in the vertical direction with respect to the column. Thereby, the shear force that the damper must receive in order to absorb the predetermined vibration energy can be reduced, and the diagonal material that the damper must receive in order to receive the shear force. The axial force can be reduced, and the diagonal member bearing the axial force can be reduced in size.

  The damper may be a steel plate perpendicular to a horizontal plane. The steel sheet may have a plurality of slits spaced in the vertical direction and extending in the horizontal direction.

  The damper is spaced apart in the horizontal direction, each being two metal end plates perpendicular to the horizontal direction, one end plate being coupled to the other end of the overhanging member, Two end plates having the other end plate coupled to the one end portion of the diagonal member, and a plurality of end plates arranged in parallel to each end plate with a horizontal interval between the end plates A plurality of rubber sheets, one of the outermost rubber sheets being fixed to the one end plate and the other of the outermost rubber sheets being fixed to the other end plate, and the rubber sheet Among the two adjacent rubber sheets, and a metal inner plate fixed to each of the two adjacent rubber sheets.

The building according to the present invention includes a first pillar and a second pillar that are spaced apart in the horizontal direction, and a first projecting member that has one end fixed to the first pillar and extends inward in the horizontal direction from the first pillar. A first overhanging member that extends more in the horizontal direction than in the vertical direction, a first damper having one end fixed to the other end of the first overhanging member, and one end fixed to the second pillar, extending horizontally inwardly from the second column, and a second overhang member extending largely by the horizontal direction than in the vertical direction and a second flared member positioned at different heights from the first flared member, one end the second A second damper fixed to the other end of the overhang member, and an oblique member having one end fixed to the other end of the first damper and the other end fixed to the other end of the second damper. Including.

  According to the present invention, during the earthquake, each of the first column and the second column receives a horizontal force and is deformed, so that the diagonal member receives the diagonal component due to the vertical component of the axial force that the diagonal member receives from the second column. In addition to the one end portion of the material being displaced in the vertical direction with respect to the first column, the damper is also deformed by receiving a shearing force when the other end portion of the projecting member is displaced in the vertical direction. The amount of deformation of the damper can be increased compared to the conventional case where the damper is deformed by receiving shearing force only when the end of the diagonal member is displaced in the vertical direction with respect to the column. Thereby, the shear force that the damper must receive in order to absorb the predetermined vibration energy can be reduced, and the diagonal material that the damper must receive in order to receive the shear force. The axial force can be reduced, and the diagonal member bearing the axial force can be reduced in size.

The front view of the building which concerns on 1st Example of this invention. The enlarged view of the building in the line 2 of FIG. The front view of the building which concerns on 1st Example of this invention when each of a 1st pillar and a 2nd pillar receives horizontal force and deform | transforms at the time of an earthquake. The enlarged view of the building which concerns on 2nd Example of this invention. The front view of the building which concerns on 3rd Example of this invention. The front view of the building which concerns on 3rd Example of this invention when each of a 1st pillar and a 2nd pillar receives horizontal force and deform | transforms at the time of an earthquake. The front view of the building which concerns on 4th Example of this invention. The front view of the building which concerns on 4th Example of this invention when each of a 1st frame and a 2nd frame receives a horizontal force at the time of an earthquake, and shear-deforms. The front view of the building which concerns on 4th Example of this invention when each of a 1st frame and a 2nd frame receives a horizontal force, and bends and deforms at the time of an earthquake.

  As shown in FIG. 1, a building 10 is constructed. The building 10 includes a first pillar 12 and a second pillar 14 that are spaced apart in the horizontal direction, a projecting member 18 having one end 16 fixed to the first pillar 12, and one end 20 having the other end of the projecting member 18. A damper 24 fixed to the portion 22, and an oblique member 32 having one end portion 26 fixed to the other end portion 28 of the damper 24 and the other end portion 30 attached to the second column 14.

  The overhang member 18 extends from the first column 12 inward in the horizontal direction (toward the second column 14). Each of the first pillar 12, the second pillar 14, and the overhang member 18 is made of reinforced concrete, and the diagonal member 32 is made of steel. In the example shown in FIG. 1, the diagonal member 32 is H-shaped steel or groove-shaped steel, and is made of ordinary steel.

  As shown in FIG. 2, the damper 24 is made of a steel plate perpendicular to the horizontal plane. The steel sheet has a plurality of slits 34 spaced in the vertical direction, and each slit extends in the horizontal direction. The damper 24 is a so-called steel slit damper. The steel plate may be made of ordinary steel or may be made of a so-called low yield point steel. The steel plate may be one having no slit 34 instead of the example shown in FIG.

  One end portion 20 of the damper 24 is fixed to the other end portion 22 of the overhang member 18 by a damper fixing member 36. The damper fixing member 36 includes a first portion 38 perpendicular to the horizontal direction and a second portion 40 perpendicular to the first portion, which are coupled to the other end portion 22 of the overhang member 18. And a second portion 40 coupled to one end 20 of 24. The first portion 38 has a plurality of spaced through holes (not shown), one end of which is fixed to the inside of the overhanging member 18 and the other end 22 of the overhanging member passes through each through hole. A bolt 42 extending inward in the horizontal direction and a nut 44 screwed to the other end of the bolt are coupled to the other end 22 of the overhang member 18.

  One end portion 26 of the diagonal member 32 is fixed to the other end portion 28 of the damper 24 by a first diagonal member fixing member 46. One end portion 48 of the first diagonal member fixing member 46 is coupled to the other end portion 28 of the damper 24, and the other end portion 50 of the first diagonal member fixing member 46 is coupled to the one end portion 26 of the diagonal member 32. .

  As shown in FIG. 1, the other end 30 of the diagonal member 32 is attached to the second pillar 14 by a second diagonal member fixing member 52. The second diagonal member fixing member 52 includes a first portion 54 that is coupled to the second column 14 and is perpendicular to the horizontal direction, and a second portion 56 that is perpendicular to the first portion. 32 and a second portion 56 coupled to the other end 30. The first portion 54 has a plurality of spaced through holes (not shown), one end of which is fixed to the inside of the second pillar 14 and extends in the horizontal direction from the second pillar through each through hole. The second pillar 14 is coupled by a bolt 58 extending in the direction and a nut 60 screwed to the other end of the bolt.

  As shown in FIG. 3, each of the first pillar 12 and the second pillar 14 is deformed by receiving a horizontal force at the time of an earthquake (in FIG. 3, each of the first pillar 12 and the second pillar 14 before the deformation is indicated by a broken line). Thus, a straight line connecting the position P1 where the one end 16 of the overhanging member 18 in the first pillar 12 is fixed and the position P2 where the other end 30 of the diagonal member 32 is attached in the second pillar 14 (see FIG. The diagonal member 32 receives an axial force from the second column 14, and the one end portion 26 of the diagonal member 32 is slightly in relation to the first column 12 due to the vertical component of the axial force. Shifts up and down. Moreover, when the 1st pillar 12 receives the said horizontal force and deform | transforms, the other end part 22 of the overhang | projection member 18 is displaced to an up-down direction.

  In the example shown in FIG. 3, the position P <b> 2 is higher than the position P <b> 1, and each of the first pillar 12 and the second pillar 14 receives the horizontal force from the first pillar 12 toward the second pillar 14. When deformed, the one end portion 26 of the diagonal member 32 is displaced upward with respect to the first column 12, and the other end portion 22 of the overhang member 18 is displaced downward. On the other hand, when each of the first pillar 12 and the second pillar 14 is deformed by receiving the horizontal force from the second pillar 14 toward the first pillar 12 (not shown), one end portion 26 of the diagonal member 32 is The other end 22 of the overhang member 18 is displaced upward with respect to the first column 12. The position P2 may be at a position lower than the position P1 instead of the example shown in FIG. 3 at a position higher than the position P1.

  As shown in FIG. 3, the overhang member 18 tries to maintain a state perpendicular to the first column 12 even after the first column 12 is deformed. When the angle formed by the straight line Y0 perpendicular to the horizontal plane at the position P1 and the axis Y1 of the first column 12 is θ, and the horizontal length of the overhang member 18 is L, the other end of the overhang member 18 The amount of displacement δ in the vertical direction of 22 corresponds to Lsinθ.

  While each of the first pillar 12 and the second pillar 14 is deformed by receiving the horizontal force, one end portion 26 of the diagonal member 32 is displaced in the vertical direction with respect to the first pillar 12, and the overhang member 18. When the other end portion 22 of the shaft is displaced in the vertical direction, the damper 24 is plastically deformed by receiving a shearing force from the one end portion 26 of the diagonal member 32 and the other end portion 22 of the overhanging member 18, and the first column during an earthquake. The vibration energy acting on each of the 12 and the second pillars 14 is absorbed.

  In addition to the one end portion 26 of the diagonal member 32 being displaced in the vertical direction with respect to the first column 12, the damper 24 is deformed by receiving the shearing force when the other end portion 22 of the overhanging member 18 is displaced in the vertical direction. Therefore, the amount of deformation of the damper 24 can be increased as compared with the conventional case where the damper is deformed by receiving shearing force only when the end of the diagonal member is displaced in the vertical direction with respect to the column. Thereby, the shear force that the damper 24 must receive to absorb the predetermined vibration energy can be reduced, and the diagonal member 32 must receive the damper 24 to receive the shear force. The axial force can be reduced, and the diagonal member 32 bearing the axial force can be reduced in size.

  The damper 24 is a so-called laminated rubber in the example shown in FIG. 4 instead of the example shown in FIG. 2 which is a steel slit damper. The damper 24 is horizontally spaced and includes two metal end plates 62 each perpendicular to the horizontal direction and each end plate spaced horizontally between the end plates. A plurality of rubber sheets 64 arranged in parallel to 62 and a metal inner plate 66 arranged in parallel to each rubber sheet 64 between two adjacent rubber sheets 64 of the rubber sheets.

  One end plate 62 is coupled to the other end 22 of the overhanging member 18, and the other end plate 62 is coupled to one end 26 of the diagonal member 32. One end plate 62 has a plurality of spaced through holes (not shown), one end of which is fixed inside the overhanging member 18, and each through hole extends from the other end 22 of the overhanging member. The bolt 68 extending inward in the horizontal direction and a nut 70 screwed to the other end of the bolt are coupled to the other end 22 of the overhang member 18. One of the outermost rubber sheets 64 is fixed to one end plate 62, and the other of the outermost rubber sheets 64 is fixed to the other end plate 62. The inner plate 66 is fixed to each of the two adjacent rubber sheets 64.

  The rubber sheet 64 has a first through hole (not shown), the internal plate 66 has a second through hole (not shown), and the damper 24 includes the first through hole and the second through hole. And has a rod-like member 72 extending in the horizontal direction. One end of the rod-shaped member 72 is fixed to one end plate 62, and the other end of the rod-shaped member 72 is fixed to the other end plate 62. The rod-shaped member 72 is made of lead. When the damper 24 receives the shearing force from the one end portion 26 of the diagonal member 32 and the other end portion 22 of the overhang member 18, the damper 24 absorbs the vibration energy by the deformation of the rubber sheet 64 and the rod-shaped member 72. The damper 24 may be one that does not have the rod-shaped member 72 instead of the example shown in FIG.

  Each of the first pillar 12, the second pillar 14, and the overhang member 18 may be made of steel instead of the example shown in FIG. 1 made of reinforced concrete. The overhang member 18 may be integrated with the first pillar 12 or may be a separate member from the first pillar 12. The diagonal member 32 may be made of reinforced concrete instead of the example shown in FIG. 1 made of steel.

  In the example shown in FIG. 5, the building 10 includes a first pillar 12, a second pillar 14, an overhang member (first overhang member) 18, a damper (first damper) 24, and a diagonal member 32, A second projecting member 74 having one end fixed to the second pillar 14 and extending inward in the horizontal direction (toward the first pillar 12) from the second pillar, and the other end of the second projecting member 74 at one end And a second damper 76 fixed to. The second overhang member 74 is located at a different height from the first overhang member 18. In the example shown in FIG. 5, the second overhanging member 74 is located at a higher height than the first overhanging member 18, but instead, the second overhanging member 74 is located at a lower height than the first overhanging member 18. May be. The other end 30 of the diagonal member 32 is fixed to the other end of the second damper 76. As described above, the other end 30 of the diagonal member 32 is attached to the second pillar 14 via the second damper 76 and the second overhanging member 74.

  As shown in FIG. 6, each of the first pillar 12 and the second pillar 14 is deformed by receiving a horizontal force at the time of the earthquake (in FIG. 6, each of the first pillar 12 and the second pillar 14 before the deformation is broken. As a result, the diagonal member 32 receives an axial force from the second column 14 via the second overhanging member 74 and the second damper 76, and the one end portion 26 of the diagonal member 32 is subjected to the first component by the vertical component of the axial force. The diagonal member 32 receives an axial force from the first column 12 via the first overhanging member 18 and the first damper 24, and the other end 30 of the diagonal member 32 is displaced. Due to the vertical component of the axial force, the second column 14 is slightly shifted in the vertical direction. Further, when the first pillar 12 is deformed by receiving the horizontal force, the other end portion 22 of the first projecting member 18 is displaced in the vertical direction, and the second pillar 14 is deformed by receiving the horizontal force. The other end portion of the second overhang member 74 is displaced in the vertical direction.

  For this reason, one end portion 26 of the diagonal member 32 is displaced in the vertical direction with respect to the first column 12 while each of the first column 12 and the second column 14 is deformed by receiving the horizontal force during an earthquake. In addition, when the other end 22 of the first overhanging member 18 is displaced in the vertical direction, the first damper 24 generates a shearing force from the one end 26 of the diagonal member 32 and the other end 22 of the first overhanging member 18. It receives and deform | transforms and absorbs the vibration energy which acts on each of the 1st pillar 12 and the 2nd pillar 14 at the time of an earthquake. Further, in addition to the other end portion 30 of the diagonal member 32 being displaced in the vertical direction with respect to the second column 14, the second damper 76 is displaced by the vertical displacement of the other end portion of the second overhanging member 74. The shearing material 32 is deformed by receiving a shearing force from the other end 30 of the diagonal member 32 and the other end of the second overhanging member 74 to absorb the vibration energy.

  In the example shown in FIG. 7, the building 10 has a third column 78 spaced horizontally outward from the first column 12, and a vertical interval between the third column and the first column 12. A plurality of first beams 80 provided in a vertical direction, a fourth column 82 spaced horizontally outward from the second column 14, and a vertical direction between the fourth column and the second column 14. And a plurality of second beams 84 provided at intervals. The first column 12, the third column 78, and the first beam 80 constitute a first frame, and the second column 14, the fourth column 82, and the second beam 84 constitute a second frame.

  When each of the first frame and the second frame receives a horizontal force during the earthquake and vibration energy acts on them, as shown in FIG. 8, each of the first frame and the second frame is mainly sheared. In some cases, the first frame and the second frame are mainly bent and deformed as shown in FIG. In any case, each of the first frame and the second frame is deformed by receiving the horizontal force, so that the one end portion 26 and the other end portion 30 of the diagonal member 32 become the first column 12 and the second column, respectively. It shifts slightly in the vertical direction with respect to the column 14. Further, when the first pillar 12 is deformed by receiving the horizontal force, the other end portion 22 of the first projecting member 18 is displaced in the vertical direction, and the second pillar 14 is deformed by receiving the horizontal force. The other end portion of the second overhang member 74 is displaced in the vertical direction.

  For this reason, in addition to the one end portion 26 of the diagonal member 32 being displaced in the vertical direction with respect to the first column 12, the other end portion 22 of the first overhanging member 18 is displaced in the vertical direction, whereby the first damper 24 is The shearing material 32 is deformed by receiving a shearing force from the one end portion 26 of the diagonal member 32 and the other end portion 22 of the first overhanging member 18 to absorb the vibration energy. Further, in addition to the other end portion 30 of the diagonal member 32 being displaced in the vertical direction with respect to the second column 14, the second damper 76 is displaced by the vertical displacement of the other end portion of the second overhanging member 74. The shearing material 32 is deformed by receiving a shearing force from the other end 30 of the diagonal member 32 and the other end of the second overhanging member 74 to absorb the vibration energy.

DESCRIPTION OF SYMBOLS 10 Building 12 1st pillar 14 2nd pillar 16 One end part of overhang member 18 Overhang member (1st overhang member)
20 One end of the damper 22 The other end of the overhang member 24 Damper (first damper)
26 One end portion of diagonal material 28 Other end portion of damper 30 Other end portion of diagonal material 32 Oblique material 34 Slit 62 End plate 64 Rubber sheet 66 Internal plate 74 Second overhang member 76 Second damper

Claims (5)

First and second pillars spaced horizontally;
A projecting member having one end fixed to the first column and extending inward in the horizontal direction from the first column and extending more in the horizontal direction than in the vertical direction ;
A damper having one end fixed to the other end of the overhang member;
A building including an oblique member having one end fixed to the other end of the damper and the other end attached to the second pillar.   The building according to claim 1, wherein the damper is made of a steel plate perpendicular to a horizontal plane.   The building according to claim 2, wherein the steel plate has a plurality of slits spaced apart in the vertical direction and each extending in the horizontal direction. The damper is spaced apart in the horizontal direction, each being two metal end plates perpendicular to the horizontal direction, one end plate being coupled to the other end of the overhanging member, Two end plates with the other end plate coupled to the one end of the diagonal;
A plurality of rubber sheets arranged in parallel with each end plate with a horizontal interval between the end plates, one of the outermost rubber sheets being fixed to the one end plate, A plurality of rubber sheets in which the other of the outer rubber sheets is fixed to the other end plate;
The metal sheet is disposed between two adjacent rubber sheets among the rubber sheets in parallel to each rubber sheet, and has a metal inner plate fixed to each of the two adjacent rubber sheets. Building. First and second pillars spaced horizontally;
A first overhanging member having one end fixed to the first pillar and extending inward in the horizontal direction from the first pillar, the first overhanging member extending more in the horizontal direction than in the vertical direction ;
A first damper having one end fixed to the other end of the first overhang member;
One end is fixed to the second column and extends inward in the horizontal direction from the second column , and is a second projecting member located at a different height from the first projecting member, and extends more in the horizontal direction than in the vertical direction. A second overhang member;
A second damper having one end fixed to the other end of the second overhang member;
A building including an oblique member having one end fixed to the other end of the first damper and the other end fixed to the other end of the second damper.

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