JPH0978883A - Vibration-resistant structure of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration-resistant structure of a building which can be installed in a low cost. SOLUTION: This device is a vibration-resistant structure of a building having a support body 33 supporting the upper structural member 31 on the lower structural member 32 side. The support body 33 is divided into two parts of the upper and lower members and the lower supporting body 33A is supported by the lower structural member 32 side through a connection member 34 and a horizontal support plate 36 is laid at the upper end of the tower supporting body 33A. And the upper supporting body 33B is placed on the upper face of the horizontal support plate 36 and positioned through a stopper 37 broken by the horizontal component of an external force. And edges 36a regulating a movement longer than a specified length L, of the upper supporting body 33B are provided at the periphery of the horizontal support plate 36. A vertically slender plate 38 is used as the connection member 34 and a clearance of a specified height H is formed between the lower supporting body 33A and the lower structural member 32.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a seismic resistant structure.

[0002]

2. Description of the Related Art Conventionally, for a structure such as a bridge pier, the rigidity of the legs has been increased so that the natural frequency does not match the vibration frequency of the external force against the external force such as an earthquake. Static and dynamic to (vibration response)
A rigid structure is adopted to withstand.

Specifically, in order to simply increase the strength of the leg portion, its section modulus, buckling strength, etc. have been increased.

[0004]

As described above, by simply improving the strength of the structure, for example, the leg portion, it is impossible to predict by a conventional vibration engineering when a large direct earthquake is hit. A destructive force that exceeds the unexpected force is generated. That is, a very large horizontal force and buckling force act, and there is a problem that it cannot endure. When designing a structure, it is safer to design with the maximum expected load, but it is difficult to determine the maximum load, and a load that rarely occurs is usually used. If designed, the manufacturing cost will be significantly higher.

Therefore, an object of the present invention is to provide a seismic resistant structure which can be manufactured at a relatively low cost.

[0006]

In order to solve the above-mentioned problems, a first means of the present invention is a seismic structure for a structure having a support for supporting one structural member on the other structural member side. , The strength of a part of the support is weaker than the strength of the other part, and more specifically, the support is divided into upper and lower parts, and the strength of one of the divided supports is It is weaker than the strength of the other divided support. Of course, the strength of the intermediate portion of the support may be weaker than the strength of the upper and lower portions thereof.

In the above-mentioned seismic structure, as a means for weakening the strength of one of the divided supports, the proportion of reinforcing bars to be arranged is reduced, or buckling strength, bending strength, etc. are weakened. According to this configuration, since a part of the support body that supports the upper structural member on the lower structural member side is weakened, more specifically, the support body is divided into an upper divided support body and a lower divided support body, and one of them is divided. The strength of the supports was made weaker than the strength of the other split support, so that, for example, in the event of a large earthquake, the buckling or deformation of one of the weaker split supports absorbs the fracture energy and thus the structure. It is possible to prevent large damage and destruction of the support.

A second means of the present invention is a seismic resistant structure of a structure having a support for supporting one structural member on the side of the other structural member, wherein the support is vertically divided into two parts.
The lower lower split support is supported by the other structural member side via a connecting member, a horizontal support member is provided at the upper end of the lower split support, and the upper split support is provided on the upper surface of the horizontal support member. Is mounted and positioned through a fixture that breaks due to the horizontal component of the external force, and a regulating portion that regulates the movement of the upper divided support body over a predetermined distance is provided around the horizontal support member, and A vertically elongated plate member is used as the connecting member, and a gap having a predetermined height is formed between the lower split support member and the other structural member.

According to this structure, the support member for supporting one structural member on the other structural member side is divided into an upper divided support member and a lower divided support member, and the upper divided support member is divided into the lower divided support members. Since the lower split support that supports the upper split support is vertically supported by the connecting member that consists of multiple plates, an extremely large earthquake occurs, for example. In this case, the horizontal component of the seismic force is absorbed by the movement of the upper divided support, and the vertical component of the seismic force is absorbed by the plastic deformation of the plate body.

Further, in the structure of the second means, the plate body is connected to the lower split support and the other structural member by welding, and the welding strength is not weakened, and the lower split support is provided below the lower split support. By disposing the cushioning member in the formed gap, for example, the vertical component of the seismic force can be absorbed by the breaking energy of the weld and the cushioning member.

In order to solve the above-mentioned problems, a third means of the present invention is a seismic resistant structure of a structure having a support for supporting one structural member on the other structural member side. Is vertically divided into two, the upper divided support on the upper side is attached to one structural member side via a connecting member, and horizontally supported on the upper end portion of the lower divided divided support provided on the other structural member side. A member is provided, and the upper split support is placed on the upper surface of the horizontal support member, and the upper split support is positioned through a fixture that breaks due to the horizontal component of the external force. A restricting portion for restricting movement over a predetermined distance is provided, and a vertically long and slender plate member is used as the connecting member, and a gap having a predetermined height is formed between the upper split support member and one of the structural members. It is a thing.

Also in this structure, the same operational effects as those of the structure of the second means are exhibited. Further, in the structure of the third means, the plate body is connected to the upper divided support and one of the structural members by welding, the welding strength is not weakened, and the plate is formed above the upper divided support. By disposing the cushioning member in the gap, for example, the vertical component of the seismic force can be absorbed by the breaking energy of the weld and the cushioning member.

Further, in order to solve the above-mentioned problems, a fourth means of the present invention is a seismic resistant structure for a structure when one structural member is supported on the other structural member side, and A support body is provided on the lower surface, and a support base for supporting the support body is provided on the other structural member side, and the support base is attached to the tubular body provided on the other structural member side and the tubular body. And a shock-absorbing member disposed in a space below the horizontal support member, and the strut body is broken by a horizontal component of an external force. It is positioned on the horizontal support member via a fixture, and the edge of the tubular body to which the horizontal support member is attached restricts the movement of the support column over a predetermined distance. Can slide with horizontal support members A seismic structural configuration the structure.

According to this structure, when the support body provided on one structural member is supported by the support base provided on the other structural member side, the support body is horizontally supported on the horizontal support member on the support base side. Since the impact force mitigating member is arranged in the space below the horizontal support member, the horizontal force is generated by the movement of the support column and the horizontal support member when an extremely large earthquake occurs. Since the vertical force acting on the column is absorbed by the impact force alleviating member, it is possible to prevent the pillar from being greatly damaged or destroyed.

Further, in the structure of the fourth means, the cylindrical body and the horizontal support member are coupled to each other and the coupling force can be broken by the vertical component of the external force. The energy of the vertical component,
It can be absorbed as the breaking energy of the joint.

Further, in order to solve the above-mentioned problems, a fifth means of the present invention is a seismic resistant structure of a structure when one structural member is supported on the other structural member side, and the other structural member is A support body is provided on the upper surface, and a support base supported by the support body is provided on one structural member side, and the support base is provided on a cylindrical body provided on the one structural member side and in this cylindrical body. A horizontal support member that is installed and placed on the support column; and an impact force alleviating member that is placed in a space above the horizontal support member and placed on the horizontal support member. The upper end of the body is positioned on the lower surface of the horizontal support member via a fixture that breaks due to the horizontal component of the external force, and the support body of the support base is provided by the edge of the tubular body on which the horizontal support member is installed. The movement of a certain distance is restricted. None is a seismic structure slidably configured structure was the horizontal support member with respect to the inner surface of the cylindrical body.

According to this structure, when the support base provided on one of the structural members is supported by the support body provided on the other structural member side, the support base side is set to the support body by the horizontal support member. It is placed so that it can move in the horizontal direction,
Since the impact force mitigating member is arranged in the space above the horizontal support member, for example, when a large earthquake occurs, the horizontal force is due to the movement of the pillar body, and the vertical force acting on the horizontal support member is the impact force mitigating member. Therefore, the pillar body is prevented from being seriously damaged or destroyed.

In the structure of the fifth means, the cylindrical body and the horizontal support member are coupled to each other and the coupling force can be broken by the vertical component of the external force. The energy of the vertical component,
It can be absorbed as the breaking energy of the joint.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3,
Reference numeral 1 is a support for a structure 2 (specifically, a leg of a bridge pier, a pillar of a large building, etc.), and an upper structural member (one structural member, for example, a bridge girder side) 3 is a lower structural member. (The other structural member, for example, a bridge pier) is for supporting on the 4 side, and the earthquake-resistant structure according to the present invention is adopted for this support 1.

In the first embodiment, the support 1 is vertically divided into two, and the lower lower support 1A has a lower strength than the upper upper support 1B. Has been done.

That is, the upper split support 1B has a horizontal component force (hereinafter referred to as horizontal force) and a vertical component even when a very strong external force, for example, a very strong seismic force such as a direct earthquake is applied. In order to withstand a force (hereinafter referred to as a vertical force), the lower split support 1A is made of reinforced concrete provided with predetermined vertical reinforcements 5A and strips 5B.
For example, the number of the stirrups 6B in the central portion is reduced. That is, the disposition ratio of the strips 6B to the vertical stripes 6A is smaller than the disposition ratio of the upper split support 1B. In addition, on the upper surface of the lower divided support 1A, a receiving member (for example, made of steel, provided with the upper divided support 1B and having a flange portion 7a for transmitting a horizontal force to the lower divided support 1B side is provided. ) 7 is attached.

In the above structure, when, for example, seismic force acts as an external force, the seismic force acting on the lower structural member 4 acts on the upper split support 1B through the lower split support 1A. When the stress is very large, a large stress wave is generated in the support body 1, but the lower split support body 1A is weaker in strength than the upper split support body 1B.
As shown in FIG. 2 or FIG. 3, the vertical force causes buckling deformation or the horizontal force causes bending deformation, so that the vertical force or horizontal force of the seismic force, that is, the breaking energy is absorbed by the lower split support 1A. .

In this way, the support for supporting the upper structural member on the lower structural member side is divided into two parts, an upper divided support and a lower divided support, and the strength of this lower divided support is determined by the upper divided support. Since the strength is weaker than the strength, for example, when a large earthquake occurs in the direct type, the breaking energy is absorbed by the buckling deformation or bending deformation of the lower split support, and therefore the support of the structure is greatly damaged. It is possible to prevent destruction and the like.

In the seismic resistant structure of the first embodiment described above, the strength on the side of the lower split support is weakened.
The same effect can be obtained even when the strength on the side of the upper divided support is weakened.

Next, a second embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. In the first embodiment described above, in order to allow the lower split support 1A to absorb the breaking energy when an external force is applied, the arrangement ratio of the stirrup 6B provided inside the lower split support 1A. In contrast to the arrangement ratio of the upper divided support 1B, the lower divided support 1A is composed of the hollow cylindrical body 11 in the second embodiment. It is a thing. The tubular body 11 and the upper split support 1B are connected to each other by, for example, bolts 12.

In the above structure, when the seismic force acts as an external force, the cylindrical body 11 as the lower split support 1A is
As shown in FIGS. 5 to 7, buckling deformation, shearing deformation, or bending deformation (of course, this bending deformation also involves shearing deformation)
Occurs, and the destructive energy is absorbed.

Also in the seismic resistant structure of the second embodiment, the upper and lower structures can be reversed. next,
A third embodiment of the present invention will be described based on FIGS.

In the first and second embodiments described above, the breaking energy generated when an external force acts is absorbed by the vertical and horizontal deformation of the lower split support, whereas In the third embodiment,
The vertical force and the horizontal force are respectively absorbed by different structures.

That is, as shown in FIGS. 8 to 10, the support 3 for supporting the upper structural member 31 on the lower structural member 32.
3 is vertically divided into two parts, and the lower part support member 33A on the lower side is erected on the side of the lower structural member 32 via a plurality of connecting members 34 composed of vertically long plate members (made of steel plates). The horizontal support plate body (horizontal support member) 3 is supported by the tubular body 35, and at the upper end portion of the lower divided support body 33A.
6 is attached.

An upper split support 33B is placed on the upper surface of the horizontal support plate 36, and is positioned by a plurality of stoppers (an example of fixtures) 37 which are broken by a horizontal force.

Further, an annular edge portion (regulating portion) 36a that restricts (prevents) the movement of the upper structural member 31 by a predetermined distance L or more is provided around the horizontal support plate 36, and A gap having a predetermined height H is formed between the lower end surface of the lower divided support 33A and the surface of the lower structural member 32.

The predetermined distance L is, for example, in the range of 150 to 200 mm, and the predetermined height H is in the range of 100 to 150 mm. In particular, when the predetermined horizontal distance L is set in such a range, for example, in the case of a large direct earthquake,
The velocity waveform in the horizontal direction or the vertical direction in which the lower structural member sways is as shown in FIG. 12, and from this graph, it is greatly related to destruction etc.
It is the part of the first and second mountains, and the distance traveled by this first mountain is about 0.15 (0.3 / 2) x 0.6 (seconds) = 0.
It will be 09m, and the distance to move on the second mountain is about 0.3.
(0.6 / 2) x 0.7 (sec) = 0.21m. Therefore, if the horizontal movements of these two mountains can be dealt with, it shows that the earthquake can be endured. From this result, the movable range between the upper divided support 33B and the lower divided support 33A is set to 150 to 200 mm.

The height H is set in the range of 100 to 150 mm because it enables vertical movement between the lower split support 33A and the lower structural member and is larger than the plastic deformation of the connecting member 34. It is what In the above configuration, when an external force such as seismic force acts, the upper structural member 31
That is, a large horizontal force acts on the upper split support 33B, but this horizontal force causes the upper split support 33B to break the stopper 37 and move within a range smaller than 200 mm to stop. That is, the breaking energy in the horizontal direction is absorbed here.

Further, due to the vertical component of the seismic force, the lower structural member 32 and the tubular body 35 receive the vertical force,
The force in the vertical direction acts on the lower split support body 33A through the plurality of plate bodies 38 that are the connecting members 34, so that the stress wave propagates in the support body 33. At this time, FIG.
As shown in FIG. 5, each plate body 38 is plastically deformed by the shearing force. That is, the breaking energy in the vertical direction is absorbed here. Of course, the amount of vertical movement of the lower split support 33A caused by this plastic deformation is 150
It is within the range of mm or less. Further, even if a torsional force acts on the support body 33 due to this seismic force, the plate body 38 is still
By the plastic deformation of, the energy due to the twist can be absorbed.

In this way, the support for supporting the upper structural member on the lower structural member side is divided into two parts, an upper divided support and a lower divided support, and this upper divided support is relative to the lower divided support. Since the lower split support that supports the upper split support is placed vertically so that it can be moved in the horizontal direction, and is vertically supported via a plurality of vertically elongated plates, for example, a direct earthquake causes a large earthquake. Even if it occurs, the breaking energy is absorbed by the horizontal movement of the upper divided support 33B and the plastic deformation of each plate 38 that is the connecting member 34, so that the structure support is subject to large damage or breakage. It is prevented from occurring.

By the way, in the third embodiment, the lower split support 33A is supported on the tubular body 35 side by the connecting member 34 formed of the plate 38, and the plate 38 is plastically deformed, Although the breaking energy is absorbed, for example, the strength of the welded portion which is the connecting portion between the plate body 38 and the tubular body 35 (or the plate body 38 and the lower split support body 33A) is reduced, and the lower split support body is formed. A cushioning member (for example, a rubber plate body, a foam plate body or the like is used) 41 is provided in the gap below 33A as shown by the phantom line in FIG.
May be arranged so that when the seismic force acts, the welded portion is broken and the lower split support 33A is supported by the cushioning member 41. The breaking energy in this case is absorbed by the breaking energy of the welded portion and the buffer member 41.

Further, in the third embodiment,
Positioning of the upper divided support 33B on the side of the horizontal support plate 36 of the lower divided support 33A has been performed by simply providing the stopper 37. However, for example, as shown in FIG. The split support 33B may be positioned on the side of the horizontal support plate 36. Of course, the shear strength of the bolt 42 is set so as to be broken when a horizontal force of a large earthquake (for example, a seismic intensity of 6 or more) acts.

Also in the seismic resistant structure of the third embodiment, the upper and lower structures can be reversed. That is, while providing the lower split support on the lower structural member side,
A tubular body may be provided so as to hang down on the upper structural member side, an upper split support body may be attached to the tubular body via a connecting member, and a horizontal support plate may be provided on the upper end of the lower split support body.
Further, in some cases, a horizontal support plate may be provided at the lower end of the upper split support body.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
It will be described based on. In each of the above-described embodiments, the support body that supports one structural member on the side of the other structural member is vertically divided into two, but in the fourth embodiment, one structural member is The strut body is supported, and the strut body is supported on the other structural member side so as to be horizontally movable and vertically movable by an impact force alleviating member.

That is, as shown in FIG. 14, for example, a circular strut body 52 is provided so as to hang down from the lower surface of an upper structural member (one structural member, for example, bridge girder side) 51, and a lower structural member (the other structural member). A support base 54 that supports the support column 52 is provided on the side of the bridge member 53, which is a structural member.

The support base 54 is provided with a tubular body 55 standing upright on the side of the lower structural member 53, and a vertically slidable arrangement in the tubular body 55 so that the column body 52 is directly placed. The horizontal support plate (horizontal support member) 56 and the impact force relaxing member 57 disposed inside the tubular body 55 and in the space below the horizontal support plate 56.

A plurality of stoppers (an example of a fixture) 59 that break when a horizontal force exceeding a predetermined force is applied are provided on the horizontal support plate 56 around the support column 52 to support the support column 52. Is positioned, and the positioned pillar body 52 and the cylindrical body 55 are separated by a predetermined distance L.

That is, the upper edge 55a of the tubular body 55.
However, the movement of the upper structural member 51 by a predetermined distance L or more is restricted (prevented). Further, the impact force reducing member 57 is for deforming when a vertical force exceeding a predetermined force is applied to absorb the impact energy, and specifically, for example, a pipe 58 having a hexagonal cross section.
It has a honeycomb structure.

In the above-mentioned structure, when a large direct type seismic force as an external force acts on the lower structural member 53, that is, the support base 54, the support 5 is inserted through the stopper 59.
Although a large horizontal force acts on 2, the column body 52 breaks the stopper 59 due to this horizontal force and moves within a range of less than 200 mm and stops. That is, the breaking energy in the horizontal direction is absorbed here. Of course, the movement of 200 mm or more is restricted by the upper edge 55a of the tubular body 55.

Further, due to the vertical component of the seismic force, a vertical stress wave propagates through the shock absorbing member 57, but at this time, the horizontal support plate 56 receives a large compressive force downward and the shock absorbing member. 57 will be pressed. That is, the breaking energy in the vertical direction is the impact force relaxation member 57.
Absorbed by the deformation energy of.

As described above, when the support pillars provided on the upper structural member are supported by the support bases provided on the lower structural member side, the support pillars can be horizontally moved to the horizontal support plate on the support base side. Since the impact force mitigating member is placed in the space below the horizontal support plate, the horizontal force will be changed by the horizontal movement of the support column when a large earthquake occurs in the direct type. Since the vertical force acting on the support plate is absorbed by the vertical movement and the impact force relaxing member, it is possible to prevent the pillar body from being greatly damaged or destroyed.

By the way, although the honeycomb structure has been described as the impact force alleviating member in the above fourth embodiment, for example, as shown in FIG. 15, a large number of cylindrical pipes 61 may be arranged, and FIG. As shown in FIG.
The two may be arranged in a cross pattern.

Further, in the fourth embodiment described above,
Although the horizontal support 56 and the tubular body 55 are separated and the horizontal support 56 is simply placed on the impact force relaxation member 57, the horizontal support 56 is welded to the tubular body 55 side by welding, for example. It may be fixed (joined) so that the welding is broken when a large vertical force is applied. In this case,
The breaking energy is absorbed by the breaking energy of welding and the buffer mitigating member.

Also, in the seismic resistant structure according to the fourth embodiment, the upper and lower structures can be reversed.
That is, it is possible to provide the support base on the upper structural member side and the column body on the lower structural member side. Of course, also in the support base in this case, the horizontal support plate and the impact force alleviating member are arranged inside thereof.

Further, as shown in the modification of the third embodiment described above, positioning of the column body on the horizontal support plate was performed by simply providing a stopper. The column body may be positioned on the horizontal support plate side.

Further, in each of the above-mentioned embodiments, the support and the pillar are illustrated as columnar shapes, but they may have other shapes, for example, prismatic shapes having a rectangular cross section. Furthermore, in each of the above-described embodiments, the support portion such as the support member that supports the upper structural member is divided into two parts in the lower structural member, and the strength of either one is made weaker than the strength of the other. For example, the intermediate portion of the supporting portion may be provided with the above-described weak structure, and the same effect can be obtained.

[0052]

As described above, according to the structure of the present invention, since a part of the support for supporting the upper structural member on the lower structural member side is weakened, more specifically, the upper split support and the lower split support are provided. Since the strength of one of the divided supports is made weaker than the strength of the other divided support, the buckling of one or the weaker divided support or The deformation absorbs the breaking energy,
Therefore, it is possible to prevent the structure from being greatly damaged or destroyed.

Further, according to another structure of the present invention, a support body for supporting one structural member on the other structural member side is divided into an upper divided support body and a lower divided support body, and an upper divided support body is provided. Since the body is placed so as to be movable in the horizontal direction with respect to the lower split support, and the lower split support that supports the upper split support is supported in the vertical direction by the connecting member composed of a plurality of plate bodies, For example, when a large earthquake occurs, the horizontal component of the seismic force is absorbed by the movement of the upper split support, and the vertical component of the seismic force is absorbed by the plastic deformation of the plate body, so that the structure is simple and inexpensive. It is possible to prevent damage or destruction of the support.

In addition, in the above-mentioned other construction, the plate body is connected to the lower split support body and the other structural member by welding, the welding strength is not weakened, and the plate body is formed below the lower split support body. By arranging the cushioning member in the gap, the vertical component of the seismic force can be absorbed by the breaking energy of the weld and the cushioning member.

Further, according to another configuration of the present invention, when the support body provided on one structural member is supported on the support base provided on the other structural member side, the support body is provided on the support base side. Since it was placed on a horizontal support member so that it could move in the horizontal direction, and an impact force relaxation member was placed in the space below this horizontal support member, for example, in the event of a large earthquake, the horizontal force could be Further, since the vertical force acting on the horizontal support member is absorbed by the impact force relaxation member, it is possible to prevent the pillar body from being seriously damaged or destroyed.

Further, in each of the other configurations described above, the strength on the side of the lower divided support is weakened, but conversely, if the strength on the side of the upper divided support is weakened, the same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a seismic resistant structure according to a first embodiment of the present invention.

FIG. 2 is a side view showing a deformed state of the lower split support body when an external force is applied in the first embodiment.

FIG. 3 is a side view showing a deformed state of the lower split support body when an external force is applied in the first embodiment.

FIG. 4 is a partially cutaway side view showing a seismic resistant structure according to a second embodiment of the present invention.

FIG. 5 is a side view showing a deformed state of the lower split support body when an external force is applied in the second embodiment.

FIG. 6 is a side view showing a deformed state of a lower split support body when an external force is applied in the second embodiment.

FIG. 7 is a side view showing a deformed state of the lower split support body when an external force is applied in the second embodiment.

FIG. 8 is a cross-sectional view of essential parts showing a seismic resistant structure according to a third embodiment of the present invention.

9 is a view on arrow AA of FIG. 8. FIG.

10 is a view as seen from the arrow BB in FIG.

FIG. 11 is a side view of an essential part showing a working state in the third embodiment.

FIG. 12 is a graph showing a velocity waveform of an earthquake according to the third embodiment.

FIG. 13 is a main-portion cross-sectional view showing a modified example of the fixture in the third embodiment.

FIG. 14 is a cross-sectional view of essential parts showing a seismic resistant structure according to a fourth embodiment of the present invention.

FIG. 15 is a perspective view of a main part showing a modified example of the impact force alleviating member according to the fourth embodiment.

FIG. 16 is a perspective view of a main part showing a modified example of the impact force alleviating member according to the fourth embodiment.

[Explanation of symbols]

 1 Support 1A Lower split support 1B Upper split support 2 Structure 3 Upper structural member 4 Lower structural member 5A, 6A Vertical stirrup 5B, 6B Belt streak 11 Cylindrical body 31 Upper structural member 32 Lower structural member 33 Support 33A Lower split support body 33B Upper split support body 34 Connecting member 35 Cylindrical body 36 Horizontal support plate body 37 Stopper 38 Plate body 41 Buffer member 42 Bolt 51 Upper structural member 52 Strut body 53 Lower structural member 54 Support base 55 Cylindrical body 56 Horizontal support plate 57 Impact force relaxation member 59 Stopper

Front page continuation (72) Inventor Toshimasa Saito 5-3 28 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Yasushi Miyashita 5-3 Nishijojo, Konohana-ku, Osaka City, Osaka Prefecture No. 28 within Hitachi Zosen Corporation

Claims (11)

[Claims] 1. A seismic resistant structure of a structure having a support for supporting one structural member on the side of the other structural member, wherein the strength of a part of the support is weaker than the strength of the other part. Earthquake-resistant structure of the structure characterized by that. 2. A seismic resistant structure of a structure having a support for supporting one structural member on the side of the other structural member, wherein the support is vertically divided into two parts, and the strength of the one divided support is defined. Is weaker than the strength of the other split support, which is a seismic resistant structure. 3. The upper split support and the lower split support are made of reinforced concrete, and the proportion of the reinforcing bars on one of the split supports is smaller than that of the other split support. The seismic resistant structure of the structure according to claim 2. 4. One of the divided supports is made of reinforced concrete, and the other of the divided supports is a tubular body having a strength lower than the buckling strength, shear strength or bending strength of the one divided support. 3. The seismic resistant structure according to claim 2, wherein the structure is constructed. 5. A seismic resistant structure of a structure having a support for supporting one structural member on the other structural member side, wherein the support is vertically divided into two, and the lower lower support is While supporting to the other structural member side through the connecting member, a horizontal support member is provided at the upper end portion of this lower split support member, and the upper split support member is placed on the upper surface of this horizontal support member,
Positioning is performed through a fixture that breaks due to the horizontal component of the external force, and a regulation portion that regulates the movement of the upper split support body over a predetermined distance is provided around the horizontal support member, and vertically as the connecting member. A seismic resistant structure of a structure, characterized in that a long and narrow plate is used and a gap of a predetermined height is formed between the lower split support and the other structural member. 6. When the lower split support is supported on the other structural member side by a vertically elongated plate, the plate is connected to the lower split support and the other structural member by welding. , Welding strength of at least one of
The structure according to claim 5, characterized in that the buffer member is not weaker than the buckling strength of the upper divided support and is arranged in a gap formed between the lower divided support and the other structural member. Earthquake-resistant structure. 7. A seismic-resistant structure for a structure having a support for supporting one structural member on the side of the other structural member, wherein the support is vertically divided into two, and the upper divided support of the upper side is connected. Attached to one structural member side via a member, a horizontal support member is provided on the upper end of a lower lower split support provided on the other structural member side, and an upper split support is provided on the upper surface of this horizontal support member. While being placed, it is positioned through a fixture that breaks due to the horizontal component of the external force, and a regulating portion that regulates the movement of the upper divided support body over a predetermined distance is provided around the horizontal support member, and the connection is made. An earthquake-resistant structure for a structure, characterized in that a vertically elongated plate is used as a member, and a gap of a predetermined height is formed between the upper divided support and one of the structural members. 8. When the upper split support is supported on one structural member side by a vertically elongated plate, the plate is connected to the upper split support and one structural member by welding. , Welding strength of at least one of
8. The structure according to claim 7, wherein the buckling strength of the lower split support is not weakened, and a buffer member is arranged in a gap formed between the upper split support and one of the structural members. Earthquake-resistant structure. 9. A seismic resistant structure for a structure when one structural member is supported on the other structural member side, wherein a pillar body is provided on the lower surface of one structural member, and the pillar is provided on the other structural member side. A support base for supporting the body is provided, and the support base is provided with a tubular body provided on the other structural member side, and a horizontal support member installed in the tubular body for directly mounting the pillar body, The horizontal support member is disposed in a space below the horizontal support member, and the horizontal support member is directly placed on the impact force mitigating member. The strut body is horizontally fixed via a fixture that is broken by a horizontal component of an external force. While positioning on the support member,
The edge of the tubular body on which the horizontal support member is installed restricts the movement of the support column over a predetermined distance, and the horizontal support member is configured to be slidable with respect to the inner surface of the tubular body. Earthquake-resistant structure of the structure characterized by that. 10. A seismic resistant structure of a structure for supporting one structural member on the other structural member side, wherein a strut body is provided on an upper surface of the other structural member, and the strut is provided on one structural member side. A support base supported by the body is provided, and the support base is provided with a tubular body provided on the side of one of the structural members, and a horizontal support member placed in the tubular body and placed on the column body, A fixture configured by an impact force mitigating member placed in the space above the horizontal support member and placed on the horizontal support member, and for breaking the upper end portion of the pillar body by the horizontal component of the external force. The horizontal support member is positioned on the lower surface of the horizontal support member, and the edge of the cylindrical body on which the horizontal support member is installed restricts movement of the support base over a predetermined distance with respect to the pillar body. Slide the member against the inner surface of the tubular body. Seismic structure of a structure characterized by being configured to be capable. 11. The horizontal support member is connected to the cylindrical body instead of being configured to be slidable on the inner surface of the cylindrical body, and the connecting force is changed by the vertical component of the external force. The seismic resistant structure for a structure according to claim 9 or 10, wherein the structure is capable of breaking.