JP2010190025A - Earthquake-resistant/seismic-control hardware and structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem by integrating the features of a joining hardware to be small in size: a seismic-control device for a house is usually installed on a diagonal brace and the vicinity of joining the main structural members such as columns and sills, and these joining sections, having hold-down hardware, battledore hardware, etc. for joining the main structural members, make duplicated installation difficult. <P>SOLUTION: A structure includes a metal plate 1C joined to the end of the diagonal brace 6 of the house, a metal plate 1A joined to a column 7, a metal plate 1D joined to a sill 8 or beam and a viscoelastic body interposed among the three sheets of the metal plates. When a wall formed by the column 7, the sill 8 and the beam is deformed through the vibrations energy of a quake and when the diagonal brace 6 is displaced through the tension or compression induced by the deformation of the wall, the individual metal plates are displaced to each other, and the viscoelastic body converts the vibration energy primarily into kinetic energy and thermal energy induced through the displacement. Thus, the structure is provided with a vibration-control function for damping of the quake. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to earthquake resistance and vibration control of housing and factory parts shelves.

Technical background

Conventional housing vibration control devices have been devised, for example, on braces. (Patent Publication 2001-241105)
In addition, there is also a device for housing control that is attached to pillars and beams. (Patent Publication 2002-4634)

  These two types of conventionally devised residential seismic control devices are considered to be effective because they are installed near the joints of main structural materials such as columns and beams that are subject to intensive shaking loads during an earthquake. However, it is more effective to use these two types of vibration control devices. However, both brackets are installed in the same location, and are always installed with pillars and foundations necessary for housing construction, hole-down hardware that joins and fixes foundations, and feather metal fittings that join main structural materials such as pillar beams. It is physically impossible to install these vibration control devices and hardware in duplicate.

  Even if these multiple hardware can be installed in duplicate, many screws and screws must be driven in order to install and fix multiple hardware. It is considered that there is a high possibility that cracks will occur, and the strength will be significantly reduced. In addition, these hardware installation locations are extremely dangerous and practically impossible, considering that the most weight is applied during an earthquake.

  Conventional housing vibration control devices attenuate vibration energy, but have low rigidity and do not meet the building standards for earthquake resistance, and are mostly used as auxiliary metal fittings.

  In addition, the conventional residential vibration control device has a mechanism in which the viscoelastic body attached to the vibration control device attenuates the vibration when the main structure of the house is deformed by the vibration energy of the earthquake. In this case, the nail is bent and the joint fitting is often damaged. In that case, the house after the earthquake is not restored and residual deformation remains.

  At present, parts shelves used in factories are hardly equipped with anti-seismic measures. Due to the Great Hanshin-Awaji Earthquake, etc., these shelves fell down, and parts fell and scattered from the shelves. This was a major hindrance to factory restoration.

Means to solve

  In the present invention, two types of vibration control mechanisms having different functions are combined into one device, and further, a joint bolt hole is provided so that an important structure joint metal fitting can be installed at the same time, and these three functions are integrated in a compact manner.

  The solution to the problem that the vibration control device does not meet the building seismic standards is the viscoelasticity that increases the hardness while maintaining the elongation rate of the physical properties of the viscoelastic body that is responsible for the vibration control function (sway energy attenuation). By using the body, the rigidity was increased while maintaining the vibration control effect.

  With regard to the residual deformation of houses after an earthquake, if the spring-loaded seismic damping dowel pipe according to claim 5 is used as a joint fitting for joining the main structural materials of the house, the joint will not be damaged even if a considerable amount of house deformation occurs. It does not occur, and therefore the house after the earthquake can be easily restored without hindering the restoring effect of the viscoelastic body.

  The effects of these solving means (the present invention) have been verified in experiments at universities and the like.

  And the countermeasures against earthquakes of parts shelves used in factories and the like are similar in size and weight when parts are loaded, and the above solution can be applied.

The invention's effect

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  In the figure, 1A is a column side metal plate, 1C is a bracing side metal plate, 1D is a base side metal plate, and each metal plate is fixed to 7 columns, 8 bases and 6 bars with 5 fixing screws. Further, a 1B viscoelastic body is vulcanized and bonded between the metal plates. In some cases, these 10 inventions and seismic resistant hardware may be installed on the upper 7 columns and 9 beams of the wall.

  The operation of the above configuration will be described below. At the time of the earthquake, as shown in FIG. 4, the wall composed of the main structural material is deformed due to the stress of the shaking energy, and the six braces are pulled in the direction of the arrow in FIG. At the same time, the seven pillars are also tilted by the stress in the direction of the arrow, and 10 B of the present invention and the 1B viscoelastic body mounted on the anti-seismic metal fitting attenuate the shaking at the time of deformation. In addition, after the earthquake, the deformation is almost restored due to the restoring characteristics of the 1B viscoelastic body.

  As described above, the seismic resistant hardware of the present invention has two types of seismic control mechanisms having different functions and effects, and functions as a main structural material joining hardware such as columns, foundations, and beams, and these mechanisms are integrated. By enabling the duplication of the three functions, the earthquake resistance and vibration control are greatly improved, and the earthquake countermeasures for houses are greatly improved.

    In addition, by devising the physical properties of the viscoelastic body and increasing the hardness while maintaining the elongation rate, it is possible to increase the rigidity and earthquake resistance without impairing the swaying energy attenuation, and also satisfy the earthquake resistance of the building standards. Therefore, it is an invention that enables a full-scale introduction of a vibration control device to the brace that is most heavily loaded during an earthquake.

  Moreover, the house restoration performance after an earthquake was improved by combining and using the present invention, a seismic control hardware, and a seismic dowel pipe for joining the main structure.

  Three-dimensional view of hardware showing embodiment of the present invention   Cross section viewed from the side of the hardware   Wall drawing of the hardware   Earthquake deformation of the wall of the same hardware   Diagram showing the vibration damping mechanism during the earthquake of the same hardware   Application diagram of parts of the same hardware

DESCRIPTION OF SYMBOLS 1A Column side metal plate 1B Viscoelastic body 1C Bracing side metal plate 1D Base side metal plate 2 Hole-down and all-purpose wing plate metal fittings 3 Bolt 4 Nut 5 Fixing screw 6 Bracing 7 Column 8 Base 9 Beam 10 The present invention, earthquake-resistant metal

Claims (6)

  A structure in which a viscoelastic body is interposed between a metal plate joined to a brace end of a house, a metal plate joined to a column, and a total of three metal plates joined to a base or a beam, When a wall composed of pillars, foundations, and beams is deformed by the shaking energy of an earthquake and when the bracing is displaced by pulling or compressing along with the deformation of the approximate wall, each metal plate is displaced and the viscosity attached between the metal plates An elastic body that has a seismic control function that attenuates the vibration by changing the vibration energy into kinetic energy and thermal energy mainly due to displacement.   By using a viscoelastic body with a high hardness while maintaining the elongation rate, the viscoelastic body used in the hardware of claim 1 has both rigidity and vibration energy attenuation performance. Seismic performance is demonstrated, and the vibration damping control function is demonstrated for large earthquake shakes, and after the earthquake, the house is restored from deformation by the restoration characteristics of the viscoelastic body. Damping hardware.   The hardware is provided with hole holes for hole down for joining and fixing pillars, foundations, and foundations, and bolt holes for metal plate members for joining and fixing main structural materials such as pillars and beams. Multi-function hardware that also has joint hardware functions.   Wall with earthquake resistance, vibration control, and restoration function incorporating the above hardware.   The structural wall according to claim 4, wherein structural joints such as columns and beams are joined by a spring-loaded seismic damping dowel pipe.   The parts shelf used in factories and the like is made earthquake resistant and seismically controlled by applying the functions and hardware of claim 1 and 2.

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