JPH0238668A - Damping mechanism for architectural structure - Google Patents

Abstract

PURPOSE:To contrive economical suppression by setting a part of the wall or the floor of a structure to be freely displaced in the horizontal direction to the structure, and by placing a damper mechanism for applying resistance to relative displacement, between the movable wall or the movable floor and the structure. CONSTITUTION:The almost whole body of the top floor and the floor 1 of the intermediate specified floor of a structure is suspension-supported to be displaced in the horizontal direction via a rod 3. At the specified section of the floor 1, a first damper cylinder 4 for sealing damper oil in is fitted, and a piston 5 is slidably set, and on a wall section 7, a second damper cylinder 8 and a piston 10 are arranged. Then, signals from vibration sensors 16a, 16B fitted on the wall section 7 and the floor 1 are led to a control circuit 17, and according to the occurrence of vibration, from the circuit 17, the output of driving signal is directed to a flow rate regulating valve 15, and resistance applied to relative displacement is regulation-controlled. Accordingly, the vibration can be economically suppressed.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is directed to the use of an architectural structure for suppressing the vibration of an architectural structure such as a building or the vibration of a floor caused by an earthquake or the like. Regarding vibration control structure.

<Conventional technology> Conventionally, as a vibration control structure for a building structure, a water tank is installed on the top of the building structure, and a wave generator is attached to the water tank to ram the water stored in the tank in a specific direction and at a specific frequency. When an earthquake occurs, the direction and period of the seismic waves are immediately analyzed by adding heavy objects, etc., and the wave generator is designed to generate waves in the direction of canceling the seismic waves using the analyzed period. This was done to suppress the vibrations of architectural structures caused by earthquakes, etc. by activating systems and displacing heavy objects.

<Problems to be Solved by the Invention> However, according to such a conventional configuration, installation of a large-capacity water tank and heavy objects in a building structure requires high costs. Not only that, the strength of the building structure must be increased to support the load of the aquarium and heavy objects, and in addition, power consumption increases to drive the wave generator and displace the heavy objects. , the initial cost l and the running cost are both high.

The present invention has been made in view of the above circumstances, and the first vibration control structure of a building structure according to the present invention is such that the vibration caused by an earthquake propagates to the building structure and The second building according to the present invention aims to attenuate the vibration quickly with a simple configuration when the building structure or floor vibrates, and to suppress the vibration of the building structure and the floor at a low cost. The purpose of the vibration damping structure of a structure is to adjust the attenuation according to the vibration of the building structure and to better suppress the vibration of the building structure and the floor. The vibration damping structure of the building structure in No. 3 is based on the second vibration control structure according to the present invention.
The purpose of this invention is to provide a vibration control structure for architectural structures at low cost.

<Means for Solving the Problems> In order to achieve the above-mentioned purpose, the first vibration damping structure of a building structure according to the present invention includes a structure in which a part of the wall or floor of the structure is A damper mechanism is interposed between the movable wall or the movable floor and the structure to provide resistance to relative displacement thereof.

In addition, in order to achieve the above-mentioned purpose, the damping structure of the second building structure according to the present invention includes a movable wall or a movable damper mechanism that constitutes the damping structure of the first building structure. A resistance adjustment mechanism is attached to adjust the resistance given to the relative displacement between the floor and the structure, and a vibration sensor is installed to detect the behavior of the structure, and the resistance adjustment mechanism is activated based on the behavior detected by the vibration sensor. and a control device for controlling the resistance applied to relative displacement between the movable wall or the movable floor and the structure.

And, the vibration control structure of the third architectural structure according to the present invention is as follows:
In order to achieve the above-mentioned purpose, the damper mechanism, which is a component of the vibration damping structure of the second building structure, is equipped with a piston rod that is slidably disposed within a damper cylinder filled with damper oil, and a damper mechanism that is a component of the damping structure of the second building structure. The cylinder chambers on both sides are connected to each other by a communication pipe, and the resistance adjustment mechanism is composed of a valve interposed in the communication pipe. It consists of a control circuit that controls the temperature.

Effect> According to the first damping structure of the building structure according to the present invention, vibrations propagate to the structure due to an earthquake, the structure is displaced in the horizontal direction, and the movable wall or movable floor and the structure are dislocated. Whether the two are moving toward each other or moving away from each other, when the two try to displace relative to each other, the damper mechanism acts to provide resistance to the relative displacement with the structure,
The movable wall or movable floor responds to the displacement of the structure, and the structure responds to the displacement of the movable floor. By speeding up the attenuation, it is possible to suppress vibrations of the entire building structure and movable floors caused by earthquakes.

Further, according to the second damping structure for a building structure according to the present invention, when vibration propagates to the structure due to an earthquake and the structure is displaced from a resting state in the horizontal direction, the vibration sensor can detect the behavior. Based on this, at the beginning of the displacement, the resistance applied to the relative displacement is small (and the movable wall or movable floor is maintained in a stationary state by the inertia of its own weight,
Then, when the movable wall or movable floor is about to be displaced horizontally from its resting state due to being pulled by the structure, the movable wall or movable floor is integrally displaced with respect to the structure while gradually increasing the applied resistance. and then maintains its integrally displaced state until the structure is displaced back to its resting state and the movable wall or movable floor returns to near its resting position, and the movable wall or movable floor returns to its resting state. As the position approaches, the applied resistance is gradually reduced and the control operation is repeated to maintain the stationary state due to the inertia of its own weight, and the displacement of the movable wall or movable floor from the stationary state in response to the displacement of the structure. By making the width smaller, this suppresses the vibrations of the movable floor and attenuates the vibrations of the structure more quickly, thereby better suppressing the vibrations of the entire building structure and the movable floor caused by earthquakes, etc. be able to.

According to the third vibration damping structure for a building structure according to the present invention, based on the behavior detected by the vibration sensor, the valve installed in the communication pipe connecting the two cylinder chambers constituting the damper cylinder is activated. By adjusting and controlling the opening degree, it is possible to suppress the vibrations of the entire building structure and the movable floor caused by earthquakes, etc., in the same manner as the vibration control structure of the second building structure described above.

<Example> Next, an example of the present invention will be described in detail based on the drawings.

FIRST EMBODIMENT> FIG. 1 is a schematic overall vertical sectional view showing a first embodiment of a vibration control structure for a building structure according to the present invention, and FIG. 2 is a partially cutaway view of the main part of FIG. 1. This is an enlarged view showing that almost the entire floor 1 of the top floor and a predetermined intermediate floor of structure A is against the ceiling wall 2.
It is suspended and supported via rods 3 so that it can be displaced in the horizontal direction.

A first damper cylinder 4 filled with damper oil is attached to a predetermined location on the outer circumferential end surface in the horizontal direction of the movable floor 1, and a double-rond type second damper cylinder 4 with a piston 5 connected to the first damper cylinder 4 is attached. A piston rod 6 of FIG. (1) As shown in the partially cutaway enlarged arrow view), a pair of second damper cylinders 8.8 each filled with damper oil are attached, and a piston 9 is attached to each of the second damper cylinders 8.8. A double-rod type second piston rod 10 is provided so as to be freely slidable.

The second piston rod 10 has a pair of brackets 1) facing each other. 1) are connected and their brackets 1). 1) The tip end side of the first piston rod 6 is fitted between them, and the first screw 6 and the bracket 1) are connected through the connecting pin 12 and the elongated hole 13 in the vertical direction. connected.

In each of the first and second damper cylinders 4.8°8, cylinder chambers R1 on both sides of the piston 5.9,
R2 is connected in communication via the communication pipe 14, allowing relative displacement of the movable floor l with respect to the structure A, and maintaining the movable floor 1 in a stationary state, regardless of horizontal displacement due to vibration to the structure. At the same time, a damper mechanism is configured to provide resistance to relative displacement of the movable floor 1 with respect to the structure A.

Each of the communication pipes 14 is provided with an electromagnetically operated '/IL amount adjusting valve 15 as a resistance adjusting mechanism.

Vibration sensors 16a and 16b are attached to predetermined locations on the wall portion 7 and on the movable floor 1, respectively.
, 16b are connected to a control circuit 17 as a control device, and the control circuit 17 and the flow rate regulating valves 15 are connected to each other, and when vibration occurs, the vibration sensors 16a, 16b
Based on the behavior of the structure due to signals from the control circuit 1
7 outputs a drive signal to each of the flow rate adjustment valves 15, and the opening degrees of the flow rate adjustment valves 15 are gradually switched from the open state to the closed state, and the movable bed l is applied to the structure A. Switching from a state of relative displacement to a state of integral displacement while adjusting and controlling the resistance applied to the relative displacement, speeds up the attenuation of vibrations of structure A, and prevents the entire building structure from being affected by earthquakes etc. The structure is designed to suppress vibrations.

The above flow rate is 1! It is also possible to use an on-off valve instead of the regulating valve 15.

In the first embodiment described above, the damper mechanism is constructed by providing the first and second damper cylinders 4.8 and connecting the cylinder chambers R1 and R2 to each other via the communication pipe 14. In the present invention, for example, a fixed shaft is provided on one side of a movable floor or a movable wall and a structure A, and a gripping member is provided on the other, and the gripping member is in a state of gripping the fixed shaft and a gripping member. When the fixed shaft is gripped by the gripping member, the movable floor 1 or the movable wall can be displaced integrally with the structure A, while when the fixed shaft is not gripped by the gripping member, the movable floor 1 or the movable wall can be moved. The floor 1 or the movable wall is configured to be able to be displaced relative to the structure A, or furthermore, a friction member is attached to the gripping member and the frictional resistance is changed by adjusting the gripping force,
Various configurations can be adopted, such as allowing the resistance applied to relative displacement between the movable floor 1 or the movable wall and the structure A to be continuously changed.

As mentioned above, if the resistance applied to the relative displacement between the movable floor 1 or the movable wall and the structure A can be continuously changed, for example, if the resistance is thick and is integral with the structure A. It is advantageous to avoid stress concentrations on the movable floor l or on the movable wall when changing from a state of relative displacement to a state of relative displacement with very little resistance.

2nd Embodiment> FIG. 4 is an enlarged partially cutaway view of the main part showing a second embodiment of the vibration control structure for a building structure according to the present invention, and FIG. This is an enlarged view taken along a partially cutaway line, and the second embodiment is characterized by the following points.

That is, the communication pipe I4 and its communication pipe 1 in the first embodiment
The flow rate regulating valve 15, vibration sensor 16, and control circuit 17 installed in the first damper cylinder 4 and the second damper cylinder 8 are omitted, and the piston 5 in the first damper cylinder 4 and the second damper cylinder 8, respectively.
Orifice holes 5a, 9a, 9a are formed in each of 9.9, and a damper mechanism is configured to provide resistance to relative displacement between the movable wall 1 and the structure A.

The other configurations are the same as those in the first embodiment, are given the same numbers, and the explanation thereof will be omitted.

In the above embodiment, the predetermined floor 1, which is a part of the structure, is configured to be displaceable, but in the present invention, instead of the floor 1, a predetermined wall part 7, which is a part of the structure, is configured to be movable. It may be constructed such that it can be displaced.

In addition, it is not limited to floor 1.1 on the top floor and the two middle floors.
It is also possible to configure the floors I of three or more floors -F to be movable.

<Effects of the Invention> According to the first vibration damping structure of a building structure according to the present invention, a damper mechanism can be simply attached to a part of the wall or floor of the structure using a simple structure. This suppresses the vibrations of the movable floor and attenuates the vibrations of the building structure.
Unlike conventional vibration damping structures that use water tanks and heavy objects, there is no need to add a water tank or heavy objects, and there is no need to increase the strength of the structure to support the restraining structure. It has now become possible to construct architectural structures that can effectively suppress vibrations at low cost.

According to the second vibration damping structure for a building structure according to the present invention, while using a part of the wall or floor of the structure, the control mechanism performs 1. based on the behavior detection of the structure by the vibration sensor. Since the resistance applied by the damper mechanism is adjusted and controlled, it is possible to suppress the vibrations of the movable floor and to dampen the vibrations of the building structure more quickly, thereby making it possible to suppress those vibrations better.

According to the third vibration control structure for a building structure according to the present invention, there is provided a damper cylinder, a communication pipe that communicates and connects the cylinder chambers forming the damper cylinder, and a valve interposed in the communication pipe. and a control circuit that adjusts and controls the opening of the valve, suppressing the vibrations of the movable floor and dampening the vibrations of the building structure more quickly than when using linear motors. , an architectural structure that can effectively suppress vibrations can be constructed at low cost.

Moreover, since it is possible to effectively suppress vibrations on a movable floor, for example, by installing devices that are prone to failure due to vibrations, such as computers and other OA equipment and various measuring instruments, on a movable floor, it is possible to prevent failures due to vibrations. can be avoided, and the practical effect is great.

[Brief explanation of the drawing]

The drawings show an embodiment of the damping structure for a building structure according to the present invention, FIG. 1 is a schematic overall vertical sectional view showing the first embodiment of the damping structure for a building structure, and FIG. FIG. 3 is a partially cutaway enlarged view of the main part of FIG. 1, FIG. 3 is a partially cutaway enlarged view of the main part of FIG. The enlarged view, FIG. 5, is a partially cutaway enlarged view taken along the line ■-V in FIG. 4. l...Movable floor 4...First damper cylinder 5...Piston 5a of the first damper cylinder...
Orifice hole 6...Third piston rod 8...Second damper cylinder 9...Piston 9a of the second damper cylinder...
Orifice hole 10...Second piston rod 14...Communication pipe 5...Flow fill valve regulating a...Vibration sensor b...Vibration sensor 7...Control circuit A...Structure R1 , R2... cylinder chamber

Claims (3)

[Claims] (1) A part of the wall or floor of the structure is provided so as to be freely displaceable in the horizontal direction with respect to the structure, and a structure is provided between the movable wall or floor and the structure to resist relative displacement between the two. A vibration damping structure for an architectural structure, characterized by having a damper mechanism interposed therebetween. (2) the damper mechanism is provided with a resistance adjustment mechanism that adjusts the resistance given to the relative displacement between the movable wall or the movable floor and the structure, and a vibration sensor that detects the behavior of the structure; Claim (1) further comprising a control device that operates the resistance adjustment mechanism based on the behavior detected by the vibration sensor to control the resistance applied to the relative displacement between the movable wall or the movable floor and the structure. Seismic control structure of the architectural structure described in Section. (3) The damper mechanism is configured such that a piston rod is slidably provided in a damper cylinder filled with damper oil, and the cylinder chambers on both sides of the piston are connected to each other by a communication pipe, and the Claim (2), wherein the adjustment mechanism is a valve interposed in the communication pipe, and the control device is a control circuit that adjusts and controls the opening degree of the valve based on behavior detected by the vibration sensor. Damping structure for architectural structures.