JP3844265B2 - Steel structure shock absorber - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shock absorber for a steel structure such as a multilevel parking device.
[0002]
[Prior art]
Steel structures such as multi-story parking devices are often constructed adjacent to other structures such as a reinforcing bar concrete structure in a narrow site. In the case of a multi-story parking device, it may be installed inside a reinforcing bar concrete structure. In this way, when other structures and steel structures are constructed adjacent to each other, they are designed in consideration of the shaking (deformation) of the steel structures due to wind, earthquakes, etc. There is a gap between other structures as required by the Building Standards Act. In general terms, this gap seems to be sufficient (displacement of the steel structure + displacement of the adjacent structure). However, when a large earthquake or the like is assumed, it is usually calculated by (displacement of steel structure + displacement of adjacent structure) × 2.
[0003]
[Problems to be solved by the invention]
Therefore, in the calculation based on the Building Standard Law, the gap between the steel structure and other structures is widened, and the land cannot be used effectively. Moreover, when a steel structure is a three-dimensional parking apparatus, a parking space becomes narrow, parking efficiency falls, and the economical efficiency of land will also fall.
[0004]
The present invention has been developed to solve the above-described problems. That is, it aims at providing the shock absorber of the steel structure which can narrow the clearance gap between a steel structure and another structure, and can aim at the effective use of land.
[0005]
[Means for Solving the Problems]
According to the present invention, there is provided a buffer device adjacent to or steel structure to be built therein to other structures, provided on the steel structure, the rail having a stopper at both ends, the When the relative shaking of the shock absorber main body composed of an elastic body and a damper placed on a rail and sandwiched between a pair of flat plates and the other steel structure is greater than a predetermined magnitude, the shock absorber the apparatus main damping device of steel structure, characterized in that it comprises a and a beam extending from the other structures so as to press the said stopper in the direction opposite side of the swing is provided.
[0006]
The above-described present invention intends to narrow a gap with another structure provided when constructing a steel structure. As described above, in the design of the steel structure, the calculation is performed by the clearance = (displacement of the steel structure + displacement of the adjacent structure) × 2. Therefore, in order to narrow the gap, the displacement (swing) of the steel structure may be reduced. Therefore, in the present invention, a shock absorber for reducing the displacement (swing) of the steel structure is provided in the steel structure. One feature of the present invention is that a steel structure and another structure are connected via the shock absorber of the present invention. If the displacement (swing) of the steel structure is only reduced, the steel structure and other structures can be firmly fixed with a steel frame or the like. However, in such a case, if a large vibration is generated in the steel structure due to a large earthquake or the like, a large reaction force acts on another adjacent structure, and the structure is destroyed. Furthermore, when the steel structure is a three-dimensional parking apparatus, vibrations, vibration sounds, and the like generated by transportation of an automobile and the like propagate to other structures. The present invention can narrow the gap between the steel structure and other structures while avoiding these problems, and can effectively use the land.
[0007]
Further, according to an embodiment of the present invention, the elastic body is composed of three thin plates and a pair of rounded substantially frustoconical rubbers, and confronts the reduced diameter side of the rubber. is preferably formed by connecting each between said planar plates Te, the rail is laid in the arrangement direction between the steel structure and the other structure, the beam, said from the other structures a main beam extending in the laying direction of the rail, and a pair of sub-beams extending from the main beam so as to sandwich the shock absorber body, a first extending toward one of the pair of Fukuhari from the shock absorber body And a second protruding beam extending from the shock absorber main body toward the other of the pair of sub beams .
[0008]
According to the embodiment of the present invention described above, the displacement (swing) of the steel structure can be efficiently absorbed by the shock absorber main body sandwiched between the stopper and the secondary beam. Further, since the rubber has a rounded substantially truncated cone shape, even if the direction of the force acting on the shock absorber main body is deviated from the axial direction, the rubber is easily elastically deformed, and the displacement of the steel structure ( (Sway) can be absorbed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a plan view showing a shock absorber for a steel structure according to the present invention, and FIG. 2 is a view taken in the direction of arrow A in FIG. In these drawings, the shock absorber is shown in an enlarged manner for convenience of explanation.
[0010]
The shock absorber for a steel structure according to the present invention shown in these drawings is provided on the steel structure and has a rail 1 provided with stoppers 4 at both ends, and is placed on the rail 1 between a pair of flat plates 5 and 5. When the relative vibration of the shock absorber main body 2 composed of the sandwiched elastic body 6 and damper 7 and the steel structure to other structures (buildings) exceeds a predetermined magnitude, the shock absorber main body 2 will be And a beam 3 extending from another structure (building) so as to be pressed against the stopper 4 on the opposite side to the direction . That is, the present invention aims to narrow the gap between another structure and the steel structure by suppressing the shaking of the steel structure. In the following explanation, a building having a reinforced concrete structure is assumed as another structure.
[0011]
The rail 1 is laid in the direction in which the steel structure and the building are juxtaposed. The rail 1 is constituted by a smooth flat plate with less friction such as a lubricious plastic. In FIG. 1, two rails 1 are laid on the end of the shock absorber body 2, but a single flat plate on which the entire shock absorber body 2 can be placed may be used as the rail 1. Stoppers 4 that support the shock absorber main body 2 are provided at both ends of the rail 1. As shown in FIG. 2, the stopper 4 has a height sufficient to support the entire shock absorber body 2. Therefore, even if the steel structure is shaken and the shock absorber main body 2 is pressed against the stopper 4, the shock absorber main body 2 does not fall down, and the function as the shock absorber can be exhibited reliably.
[0012]
The shock absorber main body 2 has one elastic body 6 and two dampers 7 in FIG. 1, but is not limited to the number and combination thereof, and the size of the steel structure and the desired gap The number and combination of the elastic bodies 6 and the dampers 7 are arbitrary depending on conditions such as the size of the elastic body 6 and the damper 7. Furthermore, you may make it provide the some buffering device main body 2 with respect to the beam 3, and in the case of a large-sized steel frame structure, you may make it provide the some buffering device of this invention. As shown in FIGS. 1 and 2, the elastic body 6 includes three thin plates 8 and a pair of rounded substantially truncated cone-shaped rubbers 9, and the rubber 9 has a reduced diameter side. They are connected to each other between the thin plates 8 facing each other. According to this elastic body 6, even if the direction of the force acting on the shock absorber main body 2 is deviated from the axial direction, the rubber 9 is easily elastically deformed and exhibits a function as an elastic body. Displacement (swing) can be absorbed. A coil spring may be used as the elastic body 6. For example, an oil damper or the like is used as the damper 7 and is flexibly connected to the flat plate 5 by pin coupling or the like. The elastic body 6 and the damper 7 are fixed and sandwiched between a pair of flat plates 5 and 5, as shown in FIGS. An H-shaped steel reinforcing material 10 is provided on the back surface of the flat plate 5 so that the flat plate 5 is not damaged by the collision between the shock absorber main body 2 and the stopper 4. This is because if the flat plate 5 is damaged, the elastic body 6 and the damper 7 cannot exhibit their functions. Further, as shown in FIG. 2, a pedestal 11 made of a smooth flat plate with little friction such as a lubricious plastic is provided on the lowermost surface of the shock absorber main body 2 so as to smoothly move on the rail 1. .
[0013]
The beam 3 includes a pair of main beams 12 extending parallel to the laying direction of the rail 1 from the building, a pair of sub beams 13 and 13 extending between the main beams 12 so as to sandwich the buffer body 2, and a shock absorber And a projecting beam 14 extending from the main body 2 toward the sub-beam 13. The protruding beam 14 extends from the shock absorber main body 2 toward the secondary beam 13 through the stopper 4, but is not connected to the secondary beam 13. Therefore, the shock absorber main body 2 is a free-running body placed on the rail 1, and when the steel structure is shaken, the secondary beam 13 and the protruding beam 14 come into contact with each other, and the shock absorber main body 2 contacts the stopper 4. Pressed. As shown in FIG. 2, since the height center of the stopper 4 and the position of the connecting beam 14 are made substantially the same, even if the shock absorber main body 2 is pressed against the stopper 4, no overturning moment is generated. . In addition, you may make it support the sub-beams 13 and 13 by a cantilever with the main beam 12 being one.
[0014]
According to the configuration described above, when displacement (sway) occurs in the steel structure, the shock absorber according to the present invention acts as described below, and the displacement (sway) is suppressed. Here, FIG. 3 is a figure which shows the effect | action of the buffering device of this invention, and is a top view similar to FIG. When the steel structure is shaken, it is considered that the building is also shaken. However, in the following, the relative shake (displacement) of the steel structure is considered, and the building is always stationary. It shall be.
(1) FIG. 3A shows a normal state, that is, a state in which no displacement (swing) occurs in the steel structure.
(2) FIG. 3B illustrates a case in which displacement (sway) occurs in the steel structure due to the influence of wind, earthquake, or the like, and the steel structure approaches the building side. In addition, the position of the steel structure in a normal state shown in FIG. At this time, the rail 1 approaches the building side along with the shaking of the steel structure, but the shock absorber main body 2 is a free-running body, and thus contacts the stopper 4 on the opposite side far from the sliding building. Further, if the displacement (sway) increases in the steel structure, the shock absorber main body 2 and the beam 3 come into contact with each other, and the shock absorber main body 2 is pressed against the stopper 4 on the side far from the building. The impact and the shaking of the steel structure are absorbed by the elastic body 6 and the damper 7 shown in FIG. 1, and the steel structure does not approach the building side any more.
(3) FIG. 3C illustrates a case where the steel structure is separated from the building. In addition, the position of the steel structure in a normal state shown in FIG. At this time, as in FIG. 3B, the rail 1 separates from the building along with the shaking of the steel structure, but the shock absorber main body 2 slides on the rail 1 to the opposite side and contacts the stopper 4 on the building side. Further, if the displacement (sway) increases in the steel structure, the shock absorber main body 2 and the beam 3 come into contact with each other, and the shock absorber main body 2 is pressed against the stopper 4 on the building side. Then, the impact and the shaking of the steel structure are absorbed by the elastic body 6 and the damper 7 shown in FIG. 1, and the steel structure is not further separated from the building.
[0015]
As described above, according to the shock absorber for a steel structure of the present invention, when a displacement (swing) occurs in the steel structure, the steel structure may approach or leave the building above a certain value. Absent. That is, the displacement (swing) of the steel structure can be suppressed. Therefore, it is possible to narrow a gap = (displacement of a steel structure + displacement of an adjacent structure) × 2 required in the design of the steel structure, and to effectively use the land. In addition, because the steel structure and the building are connected via a shock absorber, it is resistant to sudden large earthquakes and strong winds. Is not propagated to the building.
[0016]
Note that the present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist of the present invention, such as being applicable to a case where a steel structure is installed inside a reinforcing bar-concrete structure. Of course.
[0017]
【The invention's effect】
According to the above-described shock absorber for a steel structure of the present invention, the displacement (swing) of the steel structure can be suppressed. Therefore, the gap with other structures required when constructing a steel structure can be narrowed, and the land can be used effectively. In addition, it is possible to eliminate the adverse effects of propagation of vibrations and vibration sounds that occur when the steel structure is connected to another adjacent structure. As a result, the shock absorber for a steel structure of the present invention is most effective when the steel structure is a three-dimensional parking device, improves parking efficiency, and improves economic efficiency of land.
[Brief description of the drawings]
FIG. 1 is a plan view showing a steel structure shock absorber according to the present invention.
FIG. 2 is a view taken in the direction of arrow A in FIG.
FIG. 3 is a diagram showing the operation of the shock absorber according to the present invention, and is a plan view similar to FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rail 2 Shock absorber main body 3 Beam 4 Stopper 5 Shock absorber main body flat plate 6 Elastic body 7 Damper 8 Elastic flat plate 9 Rubber 10 Reinforcement material 11 Base 12 Main beam 13 Sub beam 14 Projecting beam

Claims (4)

A shock absorber for a steel structure constructed adjacent to or within another structure,
Provided on the steel structure, the rail having a stopper at both ends,
A shock absorber main body comprising an elastic body and a damper placed on the rail and sandwiched between a pair of flat plates;
When the relative swinging with respect to the other structures of the steel structure becomes equal to or larger than a predetermined size, the shock absorber body from the other structures so as to press the said stopper in the direction opposite side of the swing An extended beam,
A shock absorber for a steel structure, comprising: The rail is laid in the arrangement direction between the steel structure and the other structure, the beam includes a main beam that extends in laying direction of the rails from the other structures, the shock absorber body a pair of sub-beams extending from the main beam so as to sandwich, the buffer from the device body and the first projecting beams extending toward one of the pair of Fukuhari, from the shock absorber body of the pair of sub-beams The shock absorber for a steel structure according to claim 1, further comprising a second protruding beam extending toward the other side . A shock absorber for a steel structure constructed adjacent to or within another structure,
Provided on the steel structure, the rail having a stopper at both ends,
A shock absorber main body comprising an elastic body and a damper placed on the rail and sandwiched between a pair of flat plates;
Have a, a beam extending from the other structures,
The rail is laid in the juxtaposition direction of the steel structure and the other structure,
The beam includes a main beam extending from the other structure in the rail laying direction, a pair of sub-beams extending from the main beam so as to sandwich the shock absorber body, and the pair of shock beams from the shock absorber body. A steel structure comprising : a first projecting beam extending toward one of the sub-beams; and a second projecting beam extending from the shock absorber main body toward the other of the pair of sub-beams. Object buffer. The elastic body, and the three thin plates, and rubber substantially frustoconical tinged pair of rounded, made, which are connected respectively between the respective thin plates by facing the reduced diameter side of the rubber The shock absorber for a steel structure according to claim 1 or 3 .

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