JP2516074B2 - Vertical coupling device for preventing vibration damage to buildings - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vertical coupling device between floors of a building such as a wooden house or between a floor and a roof layer, and particularly to a vertical coupling device for preventing vibration damage.

[Prior Art] Each floor or floor of a building and the roof layer are separated into upper and lower layers by structural materials such as beams, girders or joists. These structural materials have columns and bearing walls of both upper and lower layers. Since it is a structural material common to the upper and lower layers that are connected, the conventional building has the strength of the entire frame in which the beams, girders, columns, and the like are integrally connected from the lowest floor to the roof layer.

However, since the conventional structure has a rigid overall structure and displacement between layers is not allowed, if an uneven and excessive impact force is applied to each layer due to an earthquake or strong wind, the upper and lower layers such as the joint between the beam and the through column or tube column will be There was a possibility that the power would be concentrated on the connecting part of and lead to destruction.

This point can be pointed out for new buildings, of course, but especially when the roof layer of the existing building or only the roof layer and the upper layer is removed and a new renovation is performed, it is difficult to use through columns and the age of both upper and lower layers Since the degree of deterioration is greatly different, for example, the impact force that the upper layer, which is superior in strength, withstands deformation and transmits,
In fact, there is a possibility of causing damage to the connecting portion with the lower layer, which is actually inferior in strength, and it is necessary to further consider the strength resistance of the connecting portion between these upper and lower layers. Further, in order to prevent the vibration applied to the foundation from being transmitted to the upper structure, a cushion body having an elastic body interposed between a plurality of opposing hard plates is prepared, and one cushion body is provided between the foundation and the foundation or the pillar. An earthquake-proof structure for a house with the above intervention is proposed as Japanese Patent Laid-Open No. 52-75036.

However, since the upper and lower hard plates are not connected to each other by members other than the elastic body so as to be movable in the height direction and the horizontal direction and with a space therebetween, the elastic body deteriorates and loses its elasticity. Then, the space between the upper and lower hard plates is narrowed to incline the building, or the upper and lower hard plates are separated, and as a result, the building may be seriously damaged before the deteriorated cushion body is replaced.

Further, a base portion installed on the input side, a floor portion that constitutes a mounting surface, a support member that is disposed between the base portion and the floor portion and movably supports the floor portion, and one end is the floor portion. A seismic isolation stand having a shearing pin, the other end of which is attached to the base part and which is broken by a horizontal displacement of a predetermined value or more, and a spring member whose one end is attached to the floor part and the other end is attached to the base part. Is disclosed in.

However, this is a pedestal on which a computer or the like is placed, and is completely different in its use and basic technical idea from the invention of the present application, which is a connecting device between each layer in a building, and has a spring having elasticity. In addition to the members, there is no member for firmly connecting the floor and the base to the displacement in the height direction and the horizontal direction and maintaining a gap therebetween, and therefore the spring member deteriorates. When it becomes brittle, the connection between the floor and the base becomes very unstable, which makes it unsuitable as a seismic isolation structure for buildings that require a high degree of safety.

Therefore, these conventional techniques do not allow the upper floor to be renovated without providing through columns.

[Problems to be Solved by the Invention] The present invention has been made in view of such problems, and it is possible to effectively prevent breakage of a connecting portion between upper and lower layers of a building against vibration such as an earthquake or a strong wind. As a result, it is possible to expand and reconstruct the upper layer without through columns, which was almost impossible in the past, and the building is not damaged seriously even if the elasticity of the shock absorber is lost. The purpose is to provide a device.

[Means for Solving the Problems] The present invention has been completed in view of the above-mentioned object, and the structural members for defining each floor or each floor and the roof layer are arranged in double in the upper and lower layers separately, and the upper and lower structural members are arranged. A shock absorber is elastically interposed between the upper and lower layers, and the upper and lower structural members are movably connected in a height direction and a horizontal direction by a pair of connecting arms that are inclined in opposite directions. A vertical coupling device for preventing vibration and damage to a building, characterized in that an exterior material is arranged around the gap (claim 1), and a rolling bearing device is interposed between the upper and lower structural members in addition to the shock absorbing device. An upper and lower connecting device for preventing vibration damage to a building according to claim 1 (claim 2
Section) and these are the main points of each.

[Operation] Each of the layers or the layers of the roof and the roof layer are double-layered with the structural members for defining the layers, respectively, and each layer has strength enough to be self-supporting. On the other hand, the shock absorber, which is elastically interposed between the upper and lower structural members, elastically deforms when the force applied non-uniformly to the upper and lower layers is transmitted to the other layers, prolongs the action time of the transmitted force and impacts it. It not only relaxes it, but also transforms the energy of vibration to a part of heat during deformation and reduces it. The connecting arm connects the upper and lower structural members while keeping a space therebetween, and further follows the shearing force without damaging the absorption of the vibration by the shock absorbing device at some vibrations. Further, the exterior material shields the gap between the layers.

[Embodiment] Hereinafter, the present invention will be further described with reference to the drawings illustrating the embodiments, and FIGS. 1 and 2 and FIGS. 3 and 4 show different embodiments. First, FIGS. Reference numeral 1 in FIG. 2 denotes an upper and lower connecting device for preventing vibration and damage according to the present invention.
Is a structure in which the structural members 6 ..., 7 ... that demarcate the 1st floor 3 and the 2nd floor 4 of the building 2, and the 2nd floor 4 and the roof layer 5 are arranged in double layers separately in the upper and lower layers, and between the upper and lower structural members. A shock absorber 8 is elastically interposed to connect the upper and lower layers, and an exterior material 10 is provided on the outer periphery of each interlayer gap 9.

As shown in FIG. 2, the example building 2 is a wooden building having a first floor 3, a second floor 4, and a roof layer 5 having a storage space formed inside. Girders defining each layer, structural members 6 ..., 7 ...
It is arranged in double separately on the upper part of the hierarchy and the bottom part of the roof layer,
For example, when a part of the connecting portion between the first floor 3 and the second floor 4 is enlarged and shown in FIG. 1, the structural members such as a girder 6 ..., a beam 7 ... It is vertically separated and doubled. Here, 11 and 11 in the figure are the columns of each layer, and 1
2 is an outer wall base material, 13 is an outer wall material, 14 is an inner wall material, 15 is a two-story floor board, 16 is a skirting board, 17 is also a joist, and 18 is a ceiling board of one layer.

Although the upper and lower connecting portions of the second floor 4 and the roof layer 5 are not shown, the pipe pillar 11 is made of tall wood on the roof flat side.
Further, it is similar to FIG. 1 except that the outer wall base material 12 and the outer wall material 13 are replaced with a roof base material and a roof exterior material, respectively.

Next, the shock absorber 8 is a leaf spring, which is elastically interposed between the upper and lower structural members 6 ..., 7 ... In a compressed state that does not reach the limit due to the load of the upper layer. The connecting plates 19 and 19 are fixed to both structural materials with bolts and nuts 20 ... Reference numeral 21 in the drawing denotes a connecting bolt which also serves as a connecting means for the upper and lower structural members 6 ..., 7 and a compression amount adjusting means for the leaf spring 8. The connecting bolt 21 penetrates the upper structural members 6 ,. Is fixed to the lower connecting plate 19 of the leaf spring, and fixing nuts 22, 22 are tightened on the upper surface of the upper structural member via washers.
The reference numeral 23 designates an adjusting port and its opening / closing lid which are opened in the skirting board for tightening and adjusting the fixing nut.

In addition to the leaf springs, the cushioning device 8 of the present embodiment is assumed to have elasticity between the upper and lower structural members 6, ..., Between the upper and lower girders 6,6 surrounding the outer periphery of the building in addition to the leaf springs. A urethane (or phenol or the like) foamed resin layer 24 covers the leaf spring and fills the entire circumference of the building 2. here,
In the figure, 25 and 25 are thin iron plates which are molds for foaming and filling the foamed resin layer on site, which are nailed to the upper and lower structural members and have flexibility against vibration of the upper and lower layers. On the other hand, between the upper and lower beams 7, 7 installed between the girders, only the leaf spring is provided and the foamed resin layer is omitted.

Further, reference numeral 26 in the drawing denotes a pair of steel connecting arms which are inclined in opposite directions to each other, and both ends of the connecting arm 26 are rotated by bolts and nuts 27, 27 to the upper and lower structural members 6 ,. It is movably attached. Further, a long hole 36 is formed at one end of the connecting arm 26, and one of the bolts 27, 27 is inserted into the long hole 36. Therefore, the upper and lower structural members 6
, 7 can be relatively displaced in the height direction and the horizontal direction within the length of the long hole 36. Further, since the pair of connecting arms 26 are inclined in opposite directions to each other, even if the pair of connecting arms 26 are rotatably attached to the upper and lower structural members 6, ... Structural material 6 ..., 7
.., that is, the distance between the upper and lower layers is maintained at a predetermined value or more.

Next, in this example, the exterior material 10 is a gypsum board and is disposed around the entire circumference of the gap 9 between the upper and lower layers, and the upper and lower edges thereof are fixed to the outer wall base material 12 of the upper and lower layers while also serving as a drainer. Part 28,29
It is inserted in.

On the other hand, in the embodiment shown in FIG. 3, the cushioning device 8 is replaced with the leaf spring, and a urethane (or phenol etc.) foamed resin layer 24 is used.
Are filled and interposed between the upper and lower structural members 6, ..., 7, and the upper and lower structural members 6, ..., 7 are connected by bolts / nuts 30 ... The difference is that

Although the foamed resin layer is not shown between the upper and lower beams 7 and 7 in FIG. 3, the foamed resin layer and the upper and lower beams 31 and 31 shown in the drawing are not shown.
A compression stopper made of steel block that is firmly fixed to 7, 7 with bolts and nuts (upper and lower stoppers have a facing interval of approximately 5c
m) and are alternately arranged in every other row of upper and lower beams that are parallel to each other in the front direction in the figure. As a result, in this example, not only between the upper and lower girders 6 and 6 on the outer peripheral side of the building Upper and lower beams 7,7
A foamed resin layer is also interposed between them, and they are connected by the connecting bolts.

By the way, the foamed resin layer 24 includes the upper and lower structural members 6, ..., 7 ...
In addition to being installed by foaming work in the field, the material that has been foamed in advance at the factory, etc. is carried into the site and the upper and lower structural members 6 ..., 7 ...
It can also be installed in between. First, in the case of on-site foaming work, after interposing a space regulating device such as a jack between the upper and lower structural members 7 and 7 in every other row without the foamed resin layer being interposed, the connection bolts are temporarily fixed, Further, the thin iron plate 25 for the formwork or the exterior material 10 which is a gypsum board also serving as the formwork is additionally provided on the side surfaces of the upper and lower structures 6, 6 and the like, and the resin is foam-filled between them, and then the space is provided. Remove the control device. As a result, the foamed resin layer 24 is formed between the upper and lower structural members 6 and 6 and is compressed by the load of the upper layer so as to be elastically interposed, and the connection bolts 30 are fully tightened.

On the other hand, when the foamed resin layer is pre-foamed into a predetermined shape in a factory or the like, it is placed and fixed on the upper surface of the lower structural material using an adhesive, and further the adhesive is applied on the upper surface. After the structural material of the upper layer is placed and fixed, the connecting bolts are passed through the upper and lower structural materials and the foamed resin layer for final tightening.

Next, the embodiment shown in FIG. 4 is the same as the example of FIG. 3 in that the foamed resin layer 24 is elastically interposed between the upper and lower structural members 6, ... In addition to this, the example differs in that the rolling bearing device 32 is provided between the upper and lower structural members.

In this example, the rolling bearing device 32 has a steel ball 33 and steel receiving pans 35, 35 that have opposing recessed portions 34, 34 and are fixed to the upper and lower structural members 6, 6 with bolts and nuts (not shown). It is configured to support the load of the upper layer at multiple positions such as the corner and center of the building. As a result, in the vertical coupling device 1 of the present example, the buffering effect for the horizontal vibration component and positive vibration is higher than the vertical vibration component of each layer.

Note that points common to the first and second embodiments shown in FIGS. 3 and 4 are designated by the same reference numerals in the drawings, and description thereof will be omitted.

Although not shown, the vertical connecting device can be provided between all floors or a portion of floors of a building with three or more floors in addition to the two-storey building as shown in FIG. In addition to the newly-built building, the present inventors have also proposed Japanese Patent Application No. 61-159107.
63-14943) Even if it is used for the vertical connection of the refurbished roof of an existing framed structure house, which has been proposed in No. 63-14943) and has a new roof with a storage space or a residential space installed on the existing building from which the old roof has been removed. It is suitable.

In the structural materials that demarcate each floor or floor and the roof layer in such various buildings, in addition to the beams and girders, upper and lower frames or joists in the girder and framed wall construction method, further, beams of steel-framed buildings and steel frames for girders. There are others, and as described above, these are to be arranged in double in the upper and lower layers individually.

It should be noted that each layer of the building may be assembled on-site with each structural material, wall, etc. while installing this connecting device, or each layer completed or semi-finished by pre-assembling these, through the upper and lower connecting devices in order. It is also possible to stack and connect.

On the other hand, the shock absorber may employ a coil spring, a natural or synthetic rubber, a honeycomb core made of an aluminum alloy, or the like, in addition to the leaf spring and the foamed resin. Among the foamed resins, urethane foamed resins are particularly excellent in elasticity and water resistance, but other urea foams and phenol foams can be adopted, and the latter is particularly advantageous. Since the foamed styrene resin and the vinyl chloride foam are relatively weak to heat, they should be used so that the temperature rise can be suppressed within the safe range by the exterior material.

It is also possible to construct the shock absorber with an elastic adhesive. Various types of elastic adhesives are provided, for example, as a combination of a main component of a special silicone and a modified polymer, or a main component of an epoxy resin and a curing agent of a special silicone and a modified polymer. If a structural frame like a foamed resin is filled and the two structural materials are bonded together, the elastic adhesive, which is initially a viscous liquid, becomes a rubber-like elastic body after solidification, and receives the load of the upper layer between the upper and lower structural materials. And the upper and lower layers are connected by the adhesive force.

On the other hand, as the exterior material, in addition to the gypsum board, various siding such as ALC panel and ceramics, or glass worm board or rock wool board can be used, but especially when foamed resin or rubber is used for the shock absorber. A nonflammable one is desirable.

In addition, the rolling bearing device using the above-mentioned sphere has a simple structure, but in addition, rollers or rolling wheels oriented in the orthogonal direction are arranged in two stages, upper and lower, with the intermediate rolling plate or the intermediate rolling rail interposed therebetween. It is still configurable.

As will be understood from such points, in carrying out the present invention, concrete shapes, structures, dimensions, materials, number of members, arrangements and the like of layers, roof layers, structural materials, shock absorbers, exterior materials, rolling bearing devices, etc. The relationship and the like can be variously changed without departing from the gist of the invention.

[Curing of the Invention] The present invention is configured as in the above-mentioned gist, and the structural members that demarcate each layer or the layer and the roof layer are double-layered separately for the upper and lower layers, and a shock absorber is provided between the upper and lower structural members. Since the upper and lower layers are connected elastically, the upper and lower layers are individually resistant to each other due to the structural materials arranged separately, and each structure can be kept strong against earthquakes and strong winds. At the same time, since the interlayer displacement is allowed elastically between the upper and lower layers by the shock absorber, it is possible to extend the action time of the impact force transmitted between the upper and lower layers and to alleviate the impact force. Since the force transmitted and transmitted is received by the structural materials having strong resistance to both the upper and lower layers, the upper and lower layers and the shock absorber are installed for the vibration accompanying the shock such as an earthquake or strong wind. Effective structural destruction at any part of the lower connecting part Can be prevented. As a result, it is possible to add or renovate the upper layer that is not connected by through columns, which has been almost impossible in the past, and it is possible to cope with various renovation plans. Further, even if the elasticity of the shock absorber is lost due to aging or the like, the upper and lower structural members are connected by the connecting arms so as to maintain a space and follow the displacement in the height direction and the horizontal direction, so that the upper and lower structures are connected. The space between them will not be uneven, and the building will not tilt, and the horizontal deformation between the upper and lower layers will not become too large. Since it follows the movement in the height direction and the horizontal direction, there is no risk of damaging the vibration absorption by the shock absorber or damaging it. In addition, it is possible to cover each interlayer gap and the shock absorber by an exterior material arranged on the outer periphery of each interlayer gap, and to obtain a harmony of the entire appearance in a building in which such upper and lower interlayer displacement is allowed. .

[Brief description of drawings]

The drawings show embodiments, and FIG. 1 is a vertical cross-sectional view of a vertical connecting device for preventing seismic breakdown of the present invention, FIG. 2 is a perspective view of a building equipped with the same vertical connecting device, FIG. 3 and FIG. FIG. 4 is a vertical cross-sectional view of a vertical coupling device of the present invention according to another embodiment. 1 …… Seismic rupture prevention vertical connection device, 6,7 …… Structural material 2 …… Building, 8 …… Shock absorber 3,4 …… Level, 9 …… Interlayer gap 5 …… Roof layer, 10 …… Exterior material

Claims (2)

(57) [Claims] 1. A structural material that separates each floor or between a floor and a roof layer is double-layered separately for each upper and lower layers, and a shock absorber is elastically interposed between the upper and lower structural materials to form the upper and lower layers. While connecting, the upper and lower structural members are movably connected in a height direction and a horizontal direction by a pair of connecting arms that are inclined in opposite directions,
An upper and lower connecting device for preventing vibration and damage to a building, characterized in that an exterior material is provided on the outer periphery of each interlayer gap. 2. The vertical connecting device for preventing vibration damage to a building according to claim 1, wherein a rolling bearing device is provided between the upper and lower structural members in addition to the shock absorbing device.