JP2004226590A - Earthquake-resistant principle detection model for wooden building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an earthquake-resistant principle detection model for a wooden building by which earthquake-resistant performance of a wooden beam structured residence is easily recognized, differences in shaking and destruction of the residence during an earthquake caused by various diagonal beams balances and weights of a roof are clearly understood, the model is easily transported, has small size and low cost and is set up at almost any place. <P>SOLUTION: A wooden building model 2 is constructed by simulating pin joints while the joints of wooden beam structure are connected by elastic extending and contracting members made of rubber or the like and the model 2 is arranged on a movable foundation table 1. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a model for detecting the principle of seismic resistance of a wooden building for explaining the earthquake resistance, which is the most worrisome when a prospective house builder intends to build a wooden house.
[0002]
[Prior art]
If a prospective housebuilder, the owner, intends to build a wooden house, designers and contractors explain that sufficient reinforcement has been made regarding the anti-seismic properties, which are the most worrisome in meetings such as layouts. There is a need to.
[0003]
However, regarding the seismic performance of the wooden framed house, when the house is actually completed, the surroundings are covered with the outer wall material, so that the configuration of the internal wooden framed structure cannot be confirmed.
[0004]
Further, as a method of actually confirming by visual observation, there are a method of assembling a full-scale building on a large-scale vibration test bench and artificially imitating vibrations simulating an earthquake, and the method of the following patent document.
[0005]
[Patent Document 1]
JP-A-10-20758 [Patent Document 2]
JP 10-143059 A [Patent Document 3]
JP-A-11-161148 [0006]
Patent Document 1 discloses an earthquake-resistant structure such as a reinforcing member or a reinforcing metal for a frame portion of a wooden frame construction method, in order to be able to confirm that a sufficient reinforcement structure for earthquake resistance is formed in a wooden house building method. It relates to an exhibition explanation device of a wooden house building construction method characterized by constituting a full-scale cross-sectional structure model with exposed parts and also exhibiting a connection state between the structural skeleton and a foundation. A video image projection device that provides video and audio explaining the wooden house building construction method is attached to a display explanation device of the construction method.
[0007]
Japanese Patent Application Laid-Open No. H11-163873 discloses a method in which a plurality of house models having different bearing wall positions are configured to vibrate the house model so that the difference in the shaking caused by the difference in the arrangement of the bearing walls can be visually recognized in the house. The model house is a two-story building in which the arrangement of the load-bearing walls can be changed separately on the first and second floors. In addition, the house model is composed of three types of house models: a well-balanced house model with a load-bearing wall, a housing model with a poorly balanced load-bearing wall, and a model with a poorly balanced load-bearing wall. These are each provided with a vibrating device and vibrated.
[0008]
Patent Document 3 discloses a seismic isolation structure in which a building model having a seismic isolation structure or a damping structure is arranged on a shaking table capable of vibrating at a frequency similar to the vibration of an earthquake, and the shaking table is arranged on the shaking table. The fixed scale that makes the vibration generated in the building with the vibration control structure visible can be made to protrude from the fixed table other than the shaking table. A plurality of vibration tables are arranged so that the period or amplitude of the vibration table can be changed.
[0009]
Therefore, the operator can visually check the vibration condition of each model building while changing the vibration period and amplitude of the shaking table, and can compare the vibration of the seismic isolation structure, the vibration control structure, and the general structure. You can understand.
[0010]
[Problems to be solved by the invention]
If the full-scale building is assembled on a large vibration test bench, it will be very large and costly, and if it is not a specific place where a large vibration test bench is installed, seismic performance Can not be seen.
[0011]
Further, in the case of the above-mentioned Patent Document 1, the vibration is not actually applied, and the user must understand the seismic performance of the wooden framed housing by receiving the explanation, which is poor in credibility.
[0012]
The thing of the said patent document 2 does not relate to a wooden framed house, and also has a vibration model for each of the house models in which the arrangement of the load-bearing walls can be changed separately on the first floor and the second floor. However, even if the model is vibrated, if the deformation state of each model is small, there is a possibility that the user may not be able to perceive the difference in shaking only by looking from the side.
[0013]
Patent Document 3 does not relate to a wooden framed house, and furthermore, by building a fixed scale next to the building model so that vibrations generated in the building can be visually recognized, the operator can use a seismic isolation structure and a general structure. In the case of a structure, the difference in vibration can be confirmed, and a non-specialized person cannot easily understand the seismic performance.
[0014]
In view of this situation, the present invention can easily recognize the seismic performance of a wooden framed house, and in particular, what kind of shaking and collapse will occur when an earthquake occurs due to the balance of brace, the difference in roof weight. An object of the present invention is to provide a seismic principle detection model of a wooden building which can be easily understood at a glance, is easily portable, is small, inexpensive, and can be used in any place.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention
A wooden building model that imitates a pin joint by fastening the connection of the wooden frame with elastic elastic members such as rubber strings,
This is a model for detecting the principle of seismic resistance of a wooden building, wherein the wooden building model is set on a movable ground base.
[0016]
More specifically, the bracing member constituting the wooden frame is detachably disposed such that the end thereof can be fixed in the frame with a hook-and-loop fastener. It is characterized in that the ends of the pins are engaged with pins that penetrate the assembly member in the thickness direction, and the pins are bridged between the shaft assembly members.
[0017]
According to the first aspect of the present invention, if the movable ground base is vibrated and a vibration simulating an earthquake is given to the wooden building model, the connection of the wooden frame of the model imitates a pin joint. Because it is a joint, the deformation due to shaking can be easily expressed as the whole frame with the joint as the deformation center point, and at the same time, what kind of shaking occurs due to the difference in bracing balance, the difference due to the weight of the roof, etc. You can see at a glance how it collapses.
[0018]
According to the second aspect of the present invention, in addition to the above-described operation, the bracing member can be removably provided, and the set can be quickly performed with the hook-and-loop fastener. By changing the, it is possible to easily show the difference in shaking.
[0019]
Further, according to the third aspect of the present invention, the rubber string is used as the elastic expansion and contraction member, so that it is inexpensive and can be easily arranged, and the end of the pin is inserted into the pin which penetrates the frame member in the thickness direction. If it locks, it will not be exposed to the outside, it will be good in appearance, and it will be possible to arrange it close to the axis of the frame member.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a seismic principle detection model for a wooden building according to the present invention will be described in more detail with reference to the accompanying drawings.
[0021]
FIG. 1 is a perspective view showing an embodiment of a seismic principle detection model for a wooden building according to the present invention, FIG. 2 is a front view of a main part of the above-mentioned shaft assembly partially cut away, and FIG. In the partially cutaway front view, the seismic principle detection model for a wooden building of the present invention comprises a movable ground base 1 and a wooden building model 2 provided thereon.
[0022]
The movable ground base 1 accommodates a driving motor 21 as a driving device, a transmission mechanism 5 such as a gear connected thereto and a cam 6 in a flat rectangular housing 3. Is imitated on the movable ground 4, and a cam shaft 6a from the cam 6 is inserted into an engaging groove 7 formed on the back surface of the movable ground 4. In the example shown in the figure, the engaging grooves 7 are spaced from each other. Metal angle members attached to parallel piers are formed so as to face each other.
[0023]
Note that a commercially available electric drill driver can be used for the drive motor 21 as a drive device, and a commercially available hand drill can be used for the transmission mechanism 5. By using a commercially available product used for another purpose as the member to be manufactured, it can be manufactured inexpensively and easily.
[0024]
In the illustrated embodiment, the eccentric rotational movement by the cam 6 is transmitted to the movable ground 4. However, the present invention is not limited to this, and may transmit vibration by linear reciprocating motion. The mechanism 5 may also be used as a reduction mechanism, and various components other than gears, such as a rack, a chain, and a belt, may be used.
[0025]
The wooden building model 2 is composed of a foundation 8 and a frame 9 and a hut 10 on the same as in a normal wooden building (a floor group may be provided but may be omitted). The base 8 and the base 11 placed thereon are fixed and attached to the movable ground 4 of the movable ground base 1 and fastened to the movable ground 4 with anchor bolts 17 (see FIG. 4).
[0026]
The shaft assembly 9 is composed of the base 11, the column 12, the body insert, the beam (or beam) 13, the braces, and the structural members (the (body) strip 22 in the drawing) between them. The joint of the wooden frame, for example, the joint between the base 11 and the pillar 12, the joint between the pillar 12 and the girder 13 or the body insertion is fastened by an elastic elastic member such as a rubber string 14 to simulate pin joining. As the elastic member, a thin coil spring or the like other than the rubber string 14 can be considered.
[0027]
The illustrated embodiment is a case where a rubber string 14 made of rubber band is used, and the rubber string 14 may be locked by directly providing a hole penetrating in a thickness direction in each shaft assembly member and inserting it. However, as shown in FIG. 2, a pin 15 that penetrates a frame member such as the base 11, the pillar 12, or the girder 13 in the thickness direction is provided, and an end of the rubber cord 14 is locked to the pin 15 so that the shaft 15 It is designed to bridge between the assembled members. In this case, a cavity 16 is formed in the frame member (the base 11 and the column 12 in the illustrated example), and the rubber string 14 is housed in the cavity 16 so as not to be exposed to the outside. The string 14 can be arranged close to the axis of the frame member.
[0028]
The wooden building model 2 shown in FIG. 1 forms a hut 10 and is provided with a roof 18 into which a roof plate or the like is fitted. The roof 18 has a different weight and size for each model. Is preferred.
[0029]
As another embodiment, as shown in FIGS. 5 and 6, the wooden building model 2 may be provided with only the hut set 10 such as a rafter 10a, a purlin 10b, and a sword 10c.
[0030]
In the figure, reference numeral 19 denotes a bracing member, in which a hook-and-loop fastener tape 20 is provided at an end portion and an inner corner portion of the shaft assembly surface. As is well known, the hook-and-loop fastener 20 includes a male member having a hook formed of a hard thread having rigidity on a tape base, and a female member having a loop formed of a soft thread formed on a tape base. One of the male member and the female member is provided on the bracing member 19, and the other is provided on the shaft assembly side (in the frame formed by the base 11 and the pillars 12 and 13 in the drawing).
[0031]
The bracing member 19 that is detachably provided in this manner can be fixed in the shaft assembly by the hook-and-loop fastener 20, and the bracing member 19 may be either a crossing member or a single member. Further, the bracing member 19 can be easily attached and detached by cutting the ends as shown to secure a space between the bracing member 19 and the shaft assembly corner.
[0032]
Hereinafter, its usage will be described.
The seismic principle detection model of the wooden building of the present invention is of a size that can be transported by humans, and can be used when a general contractor or the like meets with the owner.
[0033]
First, when the drive motor 21 is driven, the movable ground 4 is vibrated by the cam 6 and the wooden building model 2 is brought into a state where earthquake vibration is given. As a result, the wooden building model 2 is fastened by the elastic elastic member such as the rubber string 14. As a result, the connection imitating the pin joint moves freely, and the wooden building model 2 shakes and deforms as shown in FIG.
[0034]
For example, when the roof 18 is provided as described above, when the wooden building models 2 incorporating the roofs 18 having different sizes and weights are arranged side by side, it is possible to recognize a difference in shaking due to a difference in the center of gravity of the building. it can.
[0035]
FIG. 5 shows a case where the bracing member 19 is not provided, and FIG. 6 shows a case where the bracing member 19 is provided. The difference can be recognized at a glance, and the importance of the bracing member 19 as an earthquake-resistant element can be understood.
[0036]
In addition to the above-described embodiment, although not shown in the drawings, a difference such as a case where a wall plate panel is added to an earthquake-resistant element and a case where it is not provided, or a case where the number of (barrel) strips 22 is changed may appear. It is possible.
[0037]
【The invention's effect】
As described above, the model for detecting the principle of seismic resistance of a wooden building according to the present invention can easily recognize the seismic performance of a wooden framed house. It can be easily understood at a glance what kind of shaking and collapse sometimes occurs, and it can be easily carried, small, inexpensive, and can be used without limitation in place.
[0038]
In this way, it can be easily carried, so that it can be seen by ordinary customers, which can lead to an increase in orders for rebuilding of construction shops and material dealers and an increase in orders for seismic reinforcement work.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of a model for detecting the principle of earthquake resistance of a wooden building according to the present invention.
FIG. 2 is a front view, partially cut away, of a main part of a shaft assembly in a seismic principle detection model of a wooden building.
FIG. 3 is a partially cutaway front view of a movable ground base in a seismic principle detection model of a wooden building.
FIG. 4 is a front view of an arrangement portion of a bracing member in a seismic principle detection model of a wooden building.
FIG. 5 is a front view of another example of a seismic principle detection model of a wooden building in a state where bracing members are not provided.
FIG. 6 is a front view of another embodiment of a seismic principle detection model of a wooden building in a state in which bracing members are provided.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Movable ground base part 2 Wooden building model 3 Rectangular housing 4 Movable ground 5 Transmission mechanism 6 Cam 6a Cam shaft 7 Engagement groove part 8 Foundation 9 Framing set 10 Shed set 10a Folding 10b Ridge 10c Holder 11 Base 12 Pillar 13 14 Rubber cord 15 Pin 16 Void 17 Anchor bolt 18 Roof 19 Brace member 20 Surface fastener 21 Drive motor 22 Nuki

Claims (3)

A wooden building model that imitates a pin joint by fastening the connection of the wooden frame with elastic elastic members such as rubber strings,
This wooden building model is set on a movable ground base, and is a seismic principle detection model for wooden buildings. The seismic principle detection model of a wooden building according to claim 1, wherein in the wooden frame, the bracing member is detachably disposed with its end portion being fixable in the frame by a hook-and-loop fastener. The elastic cord, which is an elastic elastic member,
The seismic principle detection model of a wooden building according to claim 1 or 2, wherein an end of the pin is penetrated by a pin penetrating the frame member in the thickness direction, and the end is hooked between the frame members.

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