JP4856438B2 - Intermediate floor seismic isolation building - Google Patents

Description

The present invention relates to an intermediate floor seismic isolation building in which a seismic isolation unit is disposed between an upper building and a lower building, and more particularly to a support structure for a longitudinal flow line portion such as an elevator or a staircase.

Conventionally, in middle- and high-rise buildings, seismic isolation units made of rubber or the like are arranged in order to reduce shaking during an earthquake (see, for example, Patent Document 1). FIG. 15 is a cross-sectional view showing an example of a conventional structure of a building having such a seismic isolation unit, in which reference numeral 100 denotes a seismic isolation unit, and reference numeral 101 is placed on each seismic isolation unit. The main frame arranged so as to penetrate vertically from the lower floor to the upper floor is shown.

By the way, although the seismic isolation unit 100 shown in FIG. 15 is arrange | positioned between the ground 102 and the building 103, recently, in order to improve a seismic isolation performance, such a seismic isolation unit (refer the code | symbol 110 of FIG. 16). ) On the intermediate floor (intermediate floor seismic isolation building) is attracting attention (see, for example, Patent Document 2). In the intermediate floor seismic isolation building, the main frame 111a of the upper building 111 and the main frame 112a of the lower building 112 are arranged vertically, and the seismic isolation unit 110 is interposed between the main frames 111a and 112a. Had been placed.

By the way, also in such an intermediate-floor seismic isolation building, like other middle- and high-rise buildings, flow lines such as stairs and elevators (hereinafter referred to as “vertical flow line portions” in this specification) from the upper floor. Although it is necessary to provide it over the lower floor, there is a difference in displacement between the upper building 111 and the lower building 112 at the seismic isolation unit 110 in the event of an earthquake. Proposals have been made. FIG. 17 is a cross-sectional view illustrating an example of a conventional structure of an intermediate floor base isolation building, in which reference numeral 120 indicates a base isolation unit, reference numeral 121 indicates an upper-layer building, and reference numeral 122 indicates a lower-layer building. In such an intermediate floor seismic isolation building, the elevator 123 is configured to be suspended from the upper building, and the entire elevator 123 is configured to be displaced integrally with the upper building 121 (for example, a patent) Reference 3).
JP 2001-20559 A JP 2003-155838 A Japanese Patent Publication No. 05-49595

By the way, in order to suspend the elevator 123 from the upper-layer building 121 in an intermediate floor seismic isolation building as shown in FIG. 17, the elevator 123 is disposed in the vicinity of the upper-layer main frame (see reference numeral 111a in FIG. 16). It was necessary to support the main frame. However, as shown in FIG. 16, there is a case where a lower-level main frame (refer to reference numeral 112a) is arranged below the upper-layer main frame (refer to reference numeral 111a). There is a possibility that the elevator 123 that is displaced integrally with 121 interferes with the lower-layer side main frame.

Therefore, an object of the present invention is to provide an intermediate floor seismic isolation building capable of avoiding interference between a longitudinal flow line portion such as an elevator or a staircase and a lower main frame when an earthquake occurs.

The invention according to claim 1 is illustrated in FIG. 1 and FIG. 3, and a plurality of seismic isolation units (2) are arranged between the upper building (1u) and the lower building (1d). In the constructed intermediate floor seismic isolation building (1),
An atrium (3) is formed from the upper-layer building (1u) to the lower-layer building (1d), and a longitudinal flow line portion (8,8) that is an elevator (80,280) or a staircase (81,281). 208) is formed so as to penetrate from the upper layer to the lower layer (4a),
The seismic isolation unit (2), the lower main frame (7d) that supports the seismic isolation unit (2) in a state of being disposed in the lower building (1d) so as to penetrate each floor, and the seismic isolation An upper-layer main frame (7u) supported by the unit (2) and disposed in the upper-layer building (1u) so as to penetrate each floor; and a living area (4b) in which a living space (5) is disposed ,
With
Between these atrium areas (4a) and residential areas (4b), a common passage (6) is arranged,
A beam member (10) is disposed so as to be supported by the upper-layer main frame (7u) and cross the blow-out area (4a),
The upper vertical flow line of the vertical movement line part (208) vertically separated into the vertical movement line part ( 8 ) or the upper layer side vertical movement line part (208u) and the lower layer side vertical movement line part (208d). Based on the fact that the portion (208u) is supported by the upper building (1u) via the beam member (10), the upper building (1u) is integrally displaced when an earthquake occurs. It is characterized by.

The invention according to claim 2, as illustrated in FIG. 3, in the invention according to claim 1, on the side of the upper Tatedo wire portion (208u), the upper layer side Tatedosen during earthquakes A side gap (211a) for allowing displacement of the portion (208u) is formed,
A lower air gap is formed below the upper vertical motion line portion (208u) to allow displacement of the upper vertical motion line portion (208u) when an earthquake occurs.

In the invention according to claim 3, as illustrated in FIG. 4, in the invention according to claim 2, a linear-type first sliding member (209u) is supported by the upper-layer side vertical motion line portion (208u). A linear type second sliding member (209d) is supported by the lower layer side vertical motion line portion (208d) so as to abut on the first sliding member (209u), and the first sliding member The member (209u) and the second sliding member (209d) are arranged so as to be slidable substantially along the horizontal plane in an angle (see symbol θ in FIG. 5) in a plan view. Features.

In the invention according to claim 4, in the invention according to any one of claims 1 to 3, the living area (4b) surrounds the atrium area (4a) as illustrated in FIG. It is characterized by being arranged in.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the elevator passage (9) is branched from the shared passage (6), and the elevator passage (9) is branched. The elevator (80) is arranged so as to face.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the elevator is arranged on the front side of the door of the elevator (80), and the elevator passage or the elevator passage (9). A line-of-sight shielding part (9a) that blocks the line of sight from the front to the front side is provided.

The invention according to claim 7 is the step according to claim 6, wherein the line-of-sight shielding part (9a) is disposed between the elevator passage (9) and the shared passage (6). It is characterized by being. In addition, the invention according to claim 8 is illustrated in FIG. 4, and in the invention according to any one of claims 1 to 7, a lower end opening (208 u) of the upper layer side vertical motion line portion (208 u). 208u ₁₎ opening area, and one of the upper end opening area of the opening (208d ₁₎ of the lower layer side Tatedo wire portion (208d) smaller than the other,
A linear type first sliding member (209u) is disposed outside the opening (208u ₁ ) having a smaller opening area so as to extend in two substantially horizontal directions,
The second sliding member (209d) is disposed at the edge of the opening (208d ₁ ) having the larger opening area so as to be slidably contacted with the first sliding member (209u). Features.

Note that the numbers in parentheses are for the sake of convenience indicating the corresponding elements in the drawings, and therefore the present description is not limited to the descriptions on the drawings.

According to the first, second, third , fourth, and eighth aspects of the invention, the longitudinal flow line portion is displaced integrally with the upper-layer building when an earthquake occurs. In the seismic isolation building according to the present invention, the longitudinal flow line portion is supported via the beam member, so it can be arranged at a position away from the upper-layer main frame and the lower-layer main frame, and when an earthquake occurs It is possible to avoid interference between the longitudinal flow line portion and the lower main frame.

According to the invention according to claim 5, since the person who wants to use the elevator has to wait in the elevator passage instead of the common passage, the passage of other people in the common passage is obstructed or the door of the other person's dwelling unit is blocked. There is no need to wait for the elevator in front.

According to the invention which concerns on Claim 6 and 7, the eyes | visual_axis from the passenger of an elevator can be interrupted | blocked.

Hereinafter, the best mode for carrying out the present invention will be described with reference to FIGS. Here, FIG. 1 is a cross-sectional view showing an example of the overall structure of an intermediate floor seismic isolation building according to the present invention, FIG. 2 (a) is an AA end view of FIG. 1, and FIG. ) Is an end view taken along the line B-B in FIG. 1. Moreover, FIG. 3 is sectional drawing which shows the other example of the whole structure of the intermediate floor seismic isolation building based on this invention. Further, FIG. 4 is a vertical sectional view showing an example of a detailed structure of a boundary portion between the upper layer side vertical flow line portion and the lower layer side vertical flow line portion, and FIG. 5 shows the first sliding member and the second sliding member. FIG. 6 is a horizontal sectional view for explaining the shape and the like of the member, and FIG. 6 is a vertical sectional view showing another example of the detailed structure of the boundary portion between the upper layer side vertical movement line portion and the lower layer side vertical movement line portion. . Moreover, FIG. 7 thru | or FIG. 14 is a horizontal sectional view which shows the other example of the structure of the middle floor seismic isolation building based on this invention.

The intermediate floor seismic isolation building according to the present invention is illustrated by reference numeral 1 in FIG. 1, and the seismic isolation units 2,... Composed of an elastic member such as rubber are composed of an upper building 1u and a lower building 1d. A plurality of them are arranged between the buildings 1u and 1d in the event of an earthquake.

Further, the intermediate floor seismic isolation building 1 according to the present invention includes an atrium area 4a in which an atrium 3 is formed from the upper building 1u to the lower building 1d, and a living area 4b in which a living space 5 is disposed. A common passage 6 is arranged between the atrium area 4a and the living area 4b. In FIG. 1, the living space 5 and the shared passage 6 are arranged on each floor, but may not be arranged on all floors. In the living area 4b, the seismic isolation unit 2, the lower layer side main frame 7d that supports the seismic isolation unit 2 in a state of being disposed in the lower layer side building 1d so as to penetrate each floor, An upper-layer main frame 7u that is supported by the seismic isolation unit 2 and is disposed in the upper-layer building 1u so as to penetrate each floor is disposed. Further, in the above-described blow-through area 4a, the longitudinal flow line portions 8 such as the elevator 80 and the staircase 81 are disposed so as to penetrate from the upper layer to the lower layer.

On the other hand, in the upper-layer building 1u, as shown in FIGS. 1 and 2 (a), a beam member 10 is arranged so as to be supported by the upper-layer main frame 7u and cross the blow-out area 4a. The longitudinal movement line portion 8 described above is supported on the beam member 10. In addition, support of the longitudinal flow line part 8 by such a beam member 10 is performed only in the upper layer side building 1u, and is not performed in the lower layer side building 1d (FIGS. 1 and 2 (a) and (b)). reference). As shown in FIG. 1, the vertical movement line portions 8 such as the elevator 80 and the staircase 81 are not only the lower-layer side main frame 7d but also members other than the main frame (movable) in the lower-layer building 1d. (Except members and deformable members), and the relative displacement between the side surface of the longitudinal motion line portion 8 and the lower layer side building 1d is allowed (in other words, their Side gap 11a for avoiding interference) is formed, and a lower gap 11b for allowing relative displacement between the lower surface of the longitudinal movement line portion 8 and the lower layer side building 1d is formed. Is formed. That is, the longitudinal flow line portions 8 such as the elevator 80 and the stairs 81 are supported by the upper-layer building 1u via the beam member 10, and are integrated with the upper-layer building 1u when an earthquake occurs. It is comprised so that it may displace.

In addition, you may comprise as illustrated in FIG. That is, the vertical movement line portion 208 is separated into an upper layer side vertical movement line portion 208u and a lower layer side vertical movement line portion 208d, for example, at a position indicated by reference symbol C, and the upper layer side vertical movement line portion 208u is It is made to be supported by the upper layer side building 1u through the beam member 10, and the lower layer side vertical motion line portion 208d is supported by the lower layer side building 1d. (E.g., between the lower layer side building 1d and the upper layer side longitudinal flow line portion 208u, or a part of the seismic isolation unit 2 and the lower layer side building 1)
(between the lower layer side portion 2a fixed to d and the side surface of the upper layer vertical flow line portion 208u), a side for allowing displacement of the upper layer vertical flow line portion 208u when an earthquake occurs A gap 211a is formed, and below the upper layer side vertical flow line portion 208u (specifically, between the lower edge of the upper layer side vertical flow line portion 208u and the lower layer side vertical flow line portion 208d, and on the upper layer side) Between the lower edge of the longitudinal flow line portion 208u and the constituent members (floor etc.) of the lower layer side building 1d), there is a lower gap portion for allowing displacement of the upper layer side vertical flow line portion 208u when an earthquake occurs. It is good to form. The shaft of the elevator 280 is separated into an upper layer side and a lower layer side, and both of them are displaced relatively to the left and right in the event of an earthquake, but in that case also the shaft to the elevator car Therefore, it is preferable to form a widened portion as indicated by reference numeral 280a in FIG.

In this case, as shown in FIG. 4, a linear-type first sliding member (for example, a linear slider) 209u is supported on the upper layer side vertical motion line portion 208u, and the lower layer side vertical motion line portion 208d is supported on the lower layer side vertical motion line portion 208d. A linear-type second sliding member (for example, a linear slider) 209d is supported so as to contact the first sliding member 209u, and the first sliding member 209u and the second sliding member 209d are shown in FIG. As shown in FIG. 5, they are arranged so as to be slidable substantially along a horizontal plane in an angle θ (where 0 <θ <180 °, preferably θ≈90 °) in a plan view. It is good to do so. Further, as illustrated in-Figure 4, the opening area of the lower end opening 208U ₁ of the upper Tatedo wire portions 208U, and one of the opening area of the upper end opening 208d ₁ of the lower layer side Tatedo line portion 208d smaller than the other, on the outside of the opening 208U ₁ towards-opening area is small, (x shown in FIG. 5, y reference) two directions substantially horizontal first slide member 209u as to extend in The second sliding member 209d is preferably arranged at the edge of the opening having the larger opening area so as to be slidably contacted with the first sliding member 209u. As the first sliding member 209u and the second sliding member 209d, for example, those disclosed in JP-A-10-280730 may be used. Note that the attachment structure of the first sliding member 209u may be as shown in FIG. With such a configuration, the upper layer side vertical motion line portion 208u is supported by the lower layer side vertical motion line portion 208d.

In addition, you may arrange | position the longitudinal flow line part 8 in the position shown in FIG. 7 thru | or FIG. Moreover, in these figures, although the residential area 4b is in a positional relationship surrounding the atrium area 4a, it is of course not limited to this. The living area 4b may be arranged in a U shape as shown in FIGS. 10 and 11, or the living area 4b may be arranged so as to sandwich the atrium area 4a as shown in FIG.

By the way, it is preferable that the elevator passage (see reference numeral 9 in FIG. 2, etc.) is branched from the shared passage 6 and the elevator 80 is arranged so as to face the elevator passage 9. If the elevator 80 is arranged so as to face the shared passage 6, a person who wants to use the elevator needs to wait in the shared passage 80 and allow other people to pass through the shared passage 6. There is a problem that it will block or wait in front of the door of another person's dwelling unit. However, when configured as described above (that is, when the elevator 80 is disposed so as to face the elevator passage 9 branched from the common passage 6), such a problem is solved.

When the elevator passage 9 is provided as described above, a line-of-sight shielding portion 9a that is disposed on the front side of the elevator door and blocks the line of sight from the elevator passage 9 to the front side is provided. And good. In this case, it is possible to block the line of sight from passengers getting on and off the elevator. As shown in FIGS. 13 and 14, a staircase 81 may be disposed on the front side of the elevator 80 to function as a line-of-sight shield.

FIG. 1 is a cross-sectional view showing an example of the overall structure of an intermediate floor base-isolated building according to the present invention. 2A is an AA end view of FIG. 1, and FIG. 2B is a BB end view of FIG. FIG. 3 is a cross-sectional view showing another example of the overall structure of the intermediate floor seismic isolation building according to the present invention. FIG. 4 is a vertical sectional view showing an example of a detailed structure of a boundary portion between the upper layer side vertical flow line portion and the lower layer side vertical flow line portion. FIG. 5 is a horizontal sectional view for explaining the shapes and the like of the first sliding member and the second sliding member. FIG. 6 is a vertical sectional view showing another example of the detailed structure of the boundary portion between the upper layer side vertical flow line portion and the lower layer side vertical flow line portion. FIG. 7 is a horizontal sectional view showing another example of the structure of the intermediate floor seismic isolation building according to the present invention. FIG. 8 is a horizontal sectional view showing another example of the structure of the intermediate floor base-isolated building according to the present invention. FIG. 9 is a horizontal sectional view showing another example of the structure of the intermediate floor seismic isolation building according to the present invention. FIG. 10 is a horizontal sectional view showing another example of the structure of the intermediate floor seismic isolation building according to the present invention. FIG. 11 is a horizontal sectional view showing another example of the structure of the intermediate floor base-isolated building according to the present invention. FIG. 12 is a horizontal cross-sectional view showing another example of the structure of the intermediate floor seismic isolation building according to the present invention. FIG. 13: is a horizontal sectional view which shows the other example of the structure of the intermediate floor seismic isolation building based on this invention. FIG. 14 is a horizontal sectional view showing another example of the structure of the intermediate floor base-isolated building according to the present invention. FIG. 15 is a cross-sectional view illustrating an example of a conventional structure of a building including a seismic isolation unit. FIG. 16 is a cross-sectional view showing another example of the structure of a building including a seismic isolation unit. FIG. 17 is a cross-sectional view showing still another example of the structure of a building including a seismic isolation unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intermediate floor seismic isolation building 1u Upper layer side building 1d Lower layer side building 2 Seismic isolation unit 3 Atrium 4a Atrium area 4b Living area 5 Living space 6 Common passage 7d Lower side main frame 7u Upper layer main frame 8 Vertical motion line 80 Elevator 81 Stairs 9 Elevator passages 9a Line-of-sight shields 10 Beam members 11a Lateral gaps 11b Lower gaps 208 Longitudinal lines 211a Lateral gaps 280 Elevators 281 Stairs

Claims (8)

In the middle-floor seismic isolation building composed of multiple seismic isolation units arranged between the upper and lower buildings,
A colonnade area is formed so that the vertical flow line part that is an elevator or a staircase penetrates from the upper layer to the lower layer, while a colonnade is formed from the upper layer side building to the lower layer side building,
The seismic isolation unit, the lower main frame supporting each seismic isolation unit in a state of being arranged in the lower layer building so as to penetrate each floor, supported by each seismic isolation unit and penetrating each floor An upper-layer main frame disposed in the upper-layer building, and a living area in which a living space is disposed;
With
There is a shared passage between these atrium areas and the living area,
A beam member is disposed so as to be supported by the upper-layer main frame and to cross the atrium area,
The upper flow line portion of the vertical flow line portion separated vertically into the vertical flow line portion or the upper layer side vertical flow line portion and the lower layer side vertical flow line portion is the upper layer side via the beam member. Based on being supported by the building, when the earthquake occurred, it was displaced integrally with the upper building.
An intermediate floor seismic isolation building characterized by that. On the side of the upper-layer vertical flow line portion, a side gap is formed to allow displacement of the upper-layer vertical flow line portion when an earthquake occurs,
Below the upper layer vertical flow line portion, a lower gap was formed to allow displacement of the upper layer vertical flow line portion when an earthquake occurred.
The base-isolated building according to claim 1, wherein: A linear type first sliding member is supported on the upper-layer vertical movement line portion,
A linear type second sliding member is supported by the lower layer side vertical motion line portion so as to contact the first sliding member,
The first sliding member and the second sliding member are arranged so as to be slidable along a substantially horizontal plane in an angled state in plan view.
The seismic isolation building for intermediate floors according to claim 2, wherein: The living area is arranged to surround the atrium area,
The intermediate-floor seismic isolation building according to any one of claims 1 to 3, wherein: The elevator passage was branched from the shared passage, and the elevator was disposed so as to face the elevator passage.
The intermediate floor seismic isolation building according to any one of claims 1 to 4. A line-of-sight shielding part that is disposed on the front side of the elevator door and blocks the line of sight from the interior of the elevator or the elevator passage to the front side,
An intermediate-floor seismic isolation building according to any one of claims 1 to 5, comprising: The line-of-sight shield is a staircase disposed between the elevator passage and the shared passage,
The intermediate floor seismic isolation building according to claim 6. Either one of the opening area of the lower end opening of the upper layer side vertical flow line part and the opening area of the upper end opening of the lower layer side vertical movement line part is made smaller than the other,
The first sliding member of the linear type is arranged outside the opening with the smaller opening area so as to extend in two substantially horizontal directions,
The second sliding member is arranged at the edge of the opening having the larger opening area so as to be slidably contacted with the first sliding member.
The intermediate floor seismic isolation building according to any one of claims 1 to 7.

Images