JP5011487B2 - Diagonal material support device - Google Patents

Description

  The present invention relates to a support device for a diagonal member attached to a structural frame of a steel structure and wooden structure building and having a vibration absorbing function of the building.

With respect to seismic force, the current building regulations do not have a seismic control structure. For the conventional example of the seismic control structure of a relatively small steel frame or wooden building, which is difficult to apply a large seismic isolation structure, and the seismic isolation structure and its action mechanism, for example, Patent Document 1, Non-Patent Documents 1, 2, 3 etc.
JP 2006-63771 A Nikkei Sangyo Shimbun MASA Architectural Design Office Low-price Seismic Isolation System Issued on May 12, 2004 Catalogs Seismic motion energy absorption system (Seacus) Sekisui House Co., Ltd. April 3, 2007 Noise control magazine Vol. 23 No. 6 Japan Society for Noise Control Engineering Published December 1999 (page 371, left column, lines 6 to 13; page 374, right column, lines 37 to 45)

  The frequency of the seismic action force varies from earthquake to earthquake depending on the magnitude and formation of the earthquake, but the technology described in Patent Document 1 converts the seismic action force into kinetic energy by elastic deformation of an elastic material such as a bending damper. Various other elastic support devices have been proposed and put into practical use. By the way, when a vibration component in the frequency band of the earthquake and a component that matches the natural frequency determined by the individual building structure appear, an unexpected acting force that cannot be dealt with by the elastic support device due to resonance between them appears. There is concern about the impact on the building. The technologies of Non-Patent Documents 1 and 2 are intended to absorb the resonance frequency component in the seismic action force by converting it into thermal energy during the phase lag displacement by the viscoelastic body. Support devices for absorbing vibrations based on viscoelastic bodies have been proposed. However, even if the viscoelastic body is added with the intention of damping the building, the damping effect is most likely caused by the resonance frequency at which the frequency of the seismic force and the natural frequency of the building resonate. It is said that the effective vibration control effect is hardly expected in other frequency bands (Non-patent Document 3).

で表される。すなわち、地震の作用力が共振周波数帯域の振動数の前後の場合には、ばね係数ｋの大小が制震効果を左右するのである。このように前記の曲げダンパーおよび粘弾性体による減衰作用はその作用原理に基づく効果が異なり、夫々の装置の構造、動作形態、材質も互いに異なっているので、これら両機能を効果的に組み合わせ、単一の装置において一体化した構造として広範な周波数帯域全般にわたって極めて有効な吸震効果による制震作用を得ることができるが、これを具現化した技術は従来知られていない。 Therefore, for the action force of earthquakes with various frequencies, the one-pattern method of conversion into thermal energy by the viscoelastic body mainly for frequencies near the resonance frequency is incomplete. The resonance frequency _fr is

It is represented by That is, when the seismic force is around the frequency of the resonance frequency band, the magnitude of the spring coefficient k determines the seismic control effect. In this way, the damping action by the bending damper and the viscoelastic body has different effects based on the principle of action, and the structure, operation mode, and material of each device are also different from each other. As a structure integrated in a single device, it is possible to obtain a damping effect by a very effective seismic absorption effect over a wide frequency band, but no technology that embodies this has been known.

  In order to solve this problem, the present invention combines a leaf spring material described in Patent Document 1 with a laminated body composed of a viscoelastic body and a sliding plate and uses it as a holding metal fitting, whereby an arcuate metal fitting (spring element) and a viscous material are used. It is an object of the present invention to provide a support device for an oblique member in which an elastic body and a sliding plate (attenuating element) are integrated to provide a comprehensive vibration control effect against vibrations around the resonance frequency and other resonance frequencies. .

  In the present invention, in order to solve the above-mentioned problem, an anchor plate fixed to the building structure frame, a support device for elastically supporting the end of the diagonal member on the vertical member or the horizontal member of the building structure frame, It has a flat pressing surface at the top, and has curved portions that are curved in an S shape or an inverted S shape at both ends of the pressing surface, and is formed into a substantially Ω shape as a whole. An arcuate fitting fixed to the plate, a laminated body composed of a sliding plate and a viscoelastic member closely held by the holding surface of the arcuate fitting and the anchor plate, and a holding surface of the arcuate fitting or the sliding plate An oblique material support device is provided, comprising an oblique material attachment piece that is formed upright and attaches an end portion of the oblique material.

  According to this diagonal support device, the laminated body composed of the viscoelastic member and the sliding plate is tightly sandwiched by the arcuate fitting having a damper effect (vibration damping effect) by bending deformation, so that the vibration of the seismic force is vibrated. The vibration near the resonance frequency where the number and the natural frequency of the building match and resonate is absorbed by the laminate due to the viscoelasticity, and when seismic force having vibration components in other frequency bands works, This can be absorbed by a damper action caused by elastic deformation of the arcuate fitting. Therefore, it becomes possible to absorb the action force of the earthquake over a wide frequency band by the combined effect of the laminated body made of the viscoelastic material and the arcuate fitting.

  The diagonal member support device of the present invention is characterized in that the anchor plate protrudes into the concave space of the arcuate fitting and has a convex portion for supporting the laminate.

  According to the support device for the diagonal member, when the laminated body composed of the sliding plate and the viscoelastic member is closely held between the arcuate fitting and the anchor plate, the convex portion can have a function as a spacer. The degree of freedom in setting the thickness of the laminated body, which is important as a seismic control element, is expanded.

  The diagonal member support device according to the present invention is characterized in that a stepped flat surface is formed in the flat surface of the top of the arcuate metal fitting, and the stepped flat surface is formed as the pressing surface.

  According to this diagonal member support device, when the laminated body composed of the sliding plate and the viscoelastic member is closely held between the arcuate fitting and the anchor plate, the step plane can be provided with a function as a spacer. The degree of freedom in setting the thickness of the laminated body, which is important as a seismic element, is expanded.

  The diagonal material supporting device of the present invention is characterized in that the diagonal material mounting piece is formed so as to rise from a sliding plate.

  By forming the diagonal member mounting piece rising from the sliding plate, the diagonal member supporting device having a simple structure and excellent assemblability can be obtained.

  The diagonal material supporting device of the present invention is characterized in that the diagonal material mounting piece is integrally formed up from the bow-shaped fitting.

  By forming the diagonal attachment piece on the arcuate fitting side, the laminated body side has only the laminated structure of the sliding plate and the viscoelastic member, so that the management of the specifications of the laminated body is improved.

  According to the present invention, for a seismic force energy having a frequency near the natural frequency (frequency) of the building, the laminated body composed of the sliding plate and the viscoelastic member undergoes phase conversion to deform and slide. The arcuate bracket that closes the laminate is elastically deformed to absorb the energy of the earthquake that has the frequency before and after it, and absorbs it by converting it into thermal energy. Convert and attenuate. Thus, the combined effect of the action of the laminated body made of viscoelastic material and the action of the arcuate metal fitting makes it possible for the first time to absorb and attenuate the action force of an earthquake having an earthquake frequency that varies every time it occurs.

  FIG. 5 is a side view showing a layout example of the diagonal member 4 and the support device 6 according to the present invention with respect to the building structure frame 1. The building structure frame 1 is used for a wall of a low-rise house, for example, and includes a rectangular frame composed of a pair of vertical members 2 and horizontal members 3. Specifically, the vertical member 2 is a pillar or the like, and the horizontal member 3 is a beam or a base.

  Fixing brackets 5 for fixing one end portion of the diagonal member 4 are attached to the four corners of the building structure frame 1, and a support device 6 for supporting the other end portion of the diagonal member 4 in the middle in the vertical direction of each vertical member 2. Are attached, and the four diagonal members 4 are spanned across the supporting members 6 attached to the longitudinal member 2 and the transverse member 3 on the opposite side by the fixing brackets 5. That is, the diagonal member 4 is constructed so as to cross in an X shape at the upper part and the lower part in the building structure frame 1. The diagonal material 4 is a member having, for example, an L-shaped cross section or a rectangular shape, and is made of a metal material or wood. As the fixing metal 5, generally known metal fittings that directly fix the end of the diagonal member 4 by nailing or screw fastening are applied. The support device 6 will be described in detail later.

  FIG. 6 is a side view showing a modification of the layout of the diagonal member 4 and the support device 6. In this example, the support device 6 is mounted in the middle of the upper and lower cross members 3, and a known fixing bracket 5 ′ is mounted in the middle of the left and right vertical members 2, and four diagonal members 4 are attached to the building structure frame. The case where it was constructed so that it may become a rhombus shape in 1 is shown. In addition, the fixing fixture 5 'can be attached to the middle of the upper and lower cross members 3, and the support device 6 can be attached to the middle of the left and right vertical members 2. It is also possible to attach the support device 6 to the entire middle of the vertical member 2. Further, the connecting member 4 'may be inserted between the left and right fixing brackets 5'. According to these examples, it is possible to coexist in the same site as a general one-muscle difference or a gluteal muscle difference used in a conventional building structure wall.

Hereinafter, a plurality of embodiments of the support device 6 according to the present invention will be described.
“First Embodiment”
1 to 3 are a side view, a cross-sectional explanatory view, and an exploded perspective view of a support device 6 according to the first embodiment, respectively. The support device 6 has an anchor plate 7 fixed to the building structure frame 1 and a flat pressing surface 8A at the top, and is curved in an S shape or an inverted S shape at both ends of the pressing surface 8A. An arcuate fitting 8 that has a curved portion 8B and is formed in a substantially Ω shape as a whole and is fixed to the anchor plate 7 at both ends, and a slide that is tightly held between the pressing surface 8A of the arcuate fitting 8 and the anchor plate 7 The laminated body 9 which consists of the moving plate 10 and the viscoelastic member 11, and the diagonal material attachment piece 12 which stands | starts up from 8 A of pressing surfaces or the sliding plate 10 of the arch-shaped metal fitting 8, and attaches the edge part of the diagonal material 4 are provided.

"Anchor plate 7"
The anchor plate 7 is made of a strip-shaped steel plate, a resin-coated steel plate, or the like, and the vertical member 2 or the horizontal member is connected to the vertical member 2 or the horizontal member 3 via a plurality of bolts or screws 13 at both ends separated in the longitudinal direction. It is fixed to the material 3. Instead of the bolts and screws 13, they may be fixed to the longitudinal member 2 or the transverse member 3 by nailing. In the present embodiment, the convex portion 7A is formed by bending the center portion of the anchor plate 7 and a flat support surface 7B is formed at the top.

  By providing the convex portion 7A, a spacer function for the stacked body 9 can be provided. That is, it may be necessary to change the thickness specification of the laminated body 9 depending on the situation of the house to be attached and the attachment location in the building structure frame 1, but the arch-shaped fitting 8 can be easily provided by providing the convex portion 7 </ b> A. And the anchor plate 7 can sandwich the laminated body 9 closely. If the anchor plate 7 is prepared in accordance with the thickness specification of the laminate 9, a type having a convex portion 7A and a type not having a plurality of convex portions 7A having different height dimensions are excellent in versatility. It becomes a support device for diagonal materials. The anchor plate may have a corrugated structure having a plurality of convex portions.

"Bow-shaped bracket 8"
The arcuate fitting 8 is a member formed by bending a strip-shaped steel plate, for example, and has a center portion in the longitudinal direction as a flat pressing surface 8A, and both ends of the pressing surface 8A are formed in an S shape and an inverted S shape. A pair of curved portions 8B that are curved and face each other are formed. The front side of the curved portion 8B, that is, both end portions of the arcuate metal fitting 8 are formed as planar fixed surfaces 8C that are in contact with both end portions of the anchor plate 7. As described above, the overall shape of the arcuate fitting is substantially Ω-shaped as described above, and the space surrounded by the pressing surface 8A and the curved portion 8B is a concave space 8D in which the laminated body 9 and the convex shape portion 7A are built. Composed. The arcuate fitting 8 is fixed to the vertical member 2 or the horizontal member 3 via the both ends of the anchor plate 7 by using, for example, the bolts or screws 13 on the fixing surface 8C. Of course, the specific shape and dimensions of the arcuate fitting 8, the anchor plate 7, the laminate 9 described later, and the like are optional matters.

  FIG. 4 is a perspective view showing a plurality of examples of the arcuate fitting 8. As the arcuate metal fitting 8, one having no slit as shown in FIG. 4 (a), or arcuate metal fittings 8 ′ and 8 ′ having a slit 8 </ b> E as shown in FIGS. 4 (b) and 4 (c). 'Can be used. For example, a plurality of slits 8E are formed along the longitudinal direction of the band continuously or discontinuously from the bending start point of the bending portion 8B on the one fixed surface 8C side to the other bending starting point. The slit width is, for example, about 1 to 5 mm. By providing the slit 8E, the amount of deformation of the arcuate fitting 8 when an external force is applied can be increased, and deformation in a three-dimensional direction such as an earthquake is possible, so that the vibration absorbing function is improved. The width, pitch or shape of the slit 8E is an optional matter.

  As a material of the bow-shaped metal fitting 8, for example, a structural steel plate, a galvanized steel plate, a resin-lined steel plate, a stainless steel plate, a structural elastic-plastic hysteretic steel plate (damper steel plate), or the like is used.

"Laminate 9"
The laminated body 9 of this embodiment consists of the laminated body which has the sliding board 10 and the viscoelastic member 11 which pinches | interposes the front and back of this sliding board 10, as shown in FIGS. The pressing surface 8A and the support surface 7B of the anchor plate 7 are closely held. The planar shape of the laminated body 9 is a rectangle that matches the planar shape of the pressing surface 8A and the support surface 7B, but is not necessarily limited to a rectangular shape, and may be a circle or the like.

"Sliding plate 10"
As the material of the sliding plate 10, for example, a structural steel plate, a galvanized steel plate, a resin-lined steel plate, a stainless steel plate or the like is used. As a shape, a flat plate member is generally used, but a square steel pipe is also used as long as a substantial sliding plane is formed between the viscoelastic member 11 and this case is also included in the present invention. Is done.

"Viscoelastic member 11"
The material of the viscoelastic member 11 is selected from high molecular compounds such as synthetic rubbers such as silicon and acrylic, natural rubbers, and asphalts.
The laminate is manufactured by alternately stacking previously formed viscoelastic plates and sliding plates, or sandwiching the elastic plates. It can be manufactured by casting and solidifying a fluidized viscoelastic material in contact with a sliding plate.

"Diagonal material mounting piece 12"
In the present embodiment, a case is shown in which the pair of diagonal member mounting pieces 12 are integrally raised from both side edges of the sliding plate 10 so as to rise in a U-shape parallel to the longitudinal direction of the arcuate fitting 8. A hole 12A through which a screw, a nail and the like for fixing the diagonal member 4 pass is formed. The ends of the diagonal members 4 attached to the upper side and the lower side are brought into contact with the diagonal member mounting pieces 12 and fixed by screws or the like.

  The operation of the support device 6 having the above configuration will be described. When the seismic force acts on the laminate 9 through the diagonal member 4, the delay in response displacement to the acting force occurs at an odd multiple of the angular velocity of π / 2 in the case of the harmonic function. A seismic control effect appears when the deformation of the laminated body 9 due to the displacement with respect to the anchor plate 7 is delayed from the acting force. During this delay time, energy is accumulated in the laminate 9, and the building structure frame 1 consumes energy, resulting in a vibration control effect.

  Here, the frequency of the seismic force varies widely depending on the magnitude and geological conditions of the earthquake, and the most effective seismic control effect due to viscoelasticity is the seismic force frequency and the natural frequency of the building. As described above, the resonance frequency is limited to the vicinity of the resonance frequency that resonates with each other.

  According to the present invention, most of the seismic vibrations near the resonance frequency can be absorbed by the laminate 9, but when the seismic vibration component is different from this, there is almost no damping effect of the viscoelastic body (the above-mentioned " At this time, the vibration components in these frequency bands are absorbed mainly by the elastic deformation of the bow 8 in the upper, lower, left, and right directions. Due to the combined effect of the laminate 9 and the arcuate fitting 8, it is possible to control an earthquake in which many frequency bands appear every earthquake.

  In FIG. 2 and FIG. 5 of Patent Document 1, it is described that a rubber-like elastic material is filled into the bow-shaped fitting including the curved portion thereof. However, as in the present invention, the laminated body 9 including the viscoelastic member 11 is tightly sandwiched between the arcuate fitting 8 and the anchor plate 7, and further, the space over the curved portion 8 </ b> B within the recessed space 8 </ b> D is not viscous. By adopting a structure in which the elastic body, that is, the laminated body 9 is not interposed, the curved portion 8B and the laminated body 9 do not interfere with each other, and the deformation of the curved portion 8B of the arcuate bracket 8 and the deformation absorption of the laminated body 9 are independent of each other. Can work. Therefore, the vibration absorption function of each member with respect to the vibration acting on the building due to the earthquake motion generated by the large energy on the global scale is not impaired.

“Second Embodiment”
7 and 8 are a side view and a cross-sectional explanatory view of the support device 6 according to the second embodiment, respectively. The same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The basic configuration and operation of the second embodiment are the same as those of the first embodiment, except that the diagonal member mounting piece 12 is integrally raised directly from the arcuate bracket 8. Specifically, the sliding plate 10 having the diagonal member mounting piece 12 shown in FIG. 3 is fixed to the back surface of the pressing surface 8A of the flat portion of the arcuate fitting 8 by welding or the like. In order to distinguish from the sliding plate 10 which is required to be tightly held between the arcuate fitting 8 and the anchor plate 7, the plate formed integrally with the arcuate fitting 8 is denoted by reference numeral 10 'as shown in FIG. ing.
According to this 2nd Embodiment, since it becomes only the laminated structure of the sliding plate 10 and the viscoelastic member 11 in the laminated body 9 side, the manageability of the specification of the laminated body 9 improves.

“Third Embodiment”
9 and 10 are a side view and a cross-sectional explanatory view of the support device 6 according to the third embodiment, respectively. The same components as those described in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The main feature of the third embodiment is that a step plane 8F that is recessed toward the anchor plate 7 is provided at the center of the top of the bow-shaped fitting 8, and the step plane 8F is configured as a pressing surface 8A. The step plane 8F is formed, for example, over the entire width of the arcuate fitting 8 with a level difference of about the plate thickness of the arcuate fitting 8 from the top plane. As the arcuate fitting 8 of the present embodiment, a damper steel plate having good elastic deformability is used, but a normal steel plate or stainless steel plate may be used. The presence / absence of the slit 8E, its width, pitch, and shape are also selective matters in this embodiment.

  In the present embodiment, the laminate 9 sandwiched between the step plane 8F and the support surface 7B of the anchor plate 7 has a four-layer structure, and the sliding plate 10, the viscoelastic member 11, and the slide are formed from the step plane 8F side. The plate 10 and the viscoelastic member 11 are closely held in this order. The diagonal member mounting piece 12 may be formed from any sliding plate 10 or may be integrally raised from the arcuate fitting 8. In the figure, as described in the second embodiment, a plate (shown by reference numeral 10 'in FIG. 9) having an oblique member mounting piece 12 is fixed to the back surface of the holding surface 8A of the arched bracket 8 by welding or the like. This embodiment is shown.

  According to the present embodiment, by providing the stepped plane 8F, the pressing surface 8A of the arch-shaped bracket 8 has a corrugated cross section, so that the plane portion is strengthened, and therefore when the seismic force is applied, the curved portion 8B of the arch-shaped bracket 8 is deformed. The performance can be improved, and the spacer function for the laminated body 9 can be provided without changing the characteristics of the arcuate fitting 8. Therefore, the thickness can be adjusted without newly inserting a spacer in the laminated body 9. Further, if the height of the entire bow-shaped fitting 8 is changed in accordance with the thickness of the laminated body 9, the shape of the curved portion 8B is changed, so that there is a possibility that the elastic deformation characteristics of the entire bow-shaped fitting 8 are different. On the other hand, the characteristic of elastic deformation of the arcuate fitting 8 can be maintained the same by providing the stepped surface 8F on the pressing surface 8A that mainly functions only as a force transmission with the laminated body 9 to provide a spacer function. . Supporting diagonal materials with excellent versatility by preparing a type that does not have a step plane 8F and a type that has a plurality of step planes 8F with different step dimensions, depending on the thickness of the laminated body 9, It becomes a device.

“Fourth Embodiment”
11 and 12 are a side view and a cross-sectional explanatory view of the support device 6 according to the fourth embodiment, respectively. The basic configuration and operation of the fourth embodiment are the same as those of the first embodiment, and the same components as those described in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The main feature of the fourth embodiment is that a square steel pipe 14 is used as the sliding plate 10. In the present embodiment, a case is shown in which the pipe axial direction is the width direction of the arcuate fitting 8 and the inner surface of each diagonal member mounting piece 12 is fixed to each opening end by welding or the like. In the figure, from the holding surface 8A side, the viscoelastic member 11, the flat sliding plate 10, the viscoelastic member 11, the sliding plate 10 made of the square steel tube 14, the viscoelastic member 11, the flat sliding plate 10, the viscous plate. Although the elastic members 11 are arranged in this order, the position of the square steel pipe 14 is not particularly limited as long as it is between the arcuate fitting 8 and the anchor plate 7.

  In addition, the anchor plate 7 of this embodiment is shown as a type without the convex-shaped part 7A shown in 1st Embodiment. Moreover, although the steel plate for dampers with favorable elastic deformation property is used also as the bow-shaped metal fitting 8 of this embodiment, you may use a normal steel plate and a stainless steel plate. Further, the presence / absence of the slit 8E, its width, pitch, and shape are also optional matters.

  According to the present embodiment, the thickness and specification of the laminate 9 can be easily changed by using the square steel pipe 14 in the laminate 9.

“Fifth Embodiment”
FIG. 13 is a side view of the support device 6 according to the fifth embodiment. The basic configuration and operation of the fifth embodiment are the same as those of the first embodiment, and the same components as those described in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The main characteristic part of the fifth embodiment is that the sliding plate 10 is in close contact with the anchor plate 7 among the sliding plate 10 and the viscoelastic member 11 of the laminate 9. In the figure, the laminated body 9 has a two-layer structure, and the viscoelastic member 11 is in close contact with the arcuate fitting 8. The diagonal member mounting piece 12 is formed on the sliding plate 10. Also in the present embodiment, the presence / absence of the slit 8E, its width, pitch, and shape are optional matters.

  Since the friction coefficient between the anchor plate 7 and the sliding plate 10 is lower than the friction coefficient between the anchor plate 7 and the viscoelastic member 11, according to the present embodiment, the anchor plate 7 is subjected to an earthquake force. The sliding plate 10 becomes slippery on the upper side, and accordingly, the initial response of the arcuate fitting 8 is good, and the initial elastic deformability is excellent.

  The preferred embodiments of the present invention have been described above. The present invention is not limited to the described embodiment, and various design changes can be made without departing from the spirit of the present invention.

It is a side view of the support device concerning a 1st embodiment. It is a section explanatory view of a support device concerning a 1st embodiment. It is a disassembled perspective view of the support apparatus which concerns on 1st Embodiment. It is a perspective view which shows the some example of a bow-shaped metal fitting. It is a side view which shows the example of a layout of the diagonal with respect to a building structure frame, and the support apparatus which concerns on this invention. It is a side view which shows the layout modification of the diagonal with respect to a building structure frame, and the support apparatus which concerns on this invention. It is a side view of the support device concerning a 2nd embodiment. It is a section explanatory view of a support device concerning a 2nd embodiment. It is a side view of the support device concerning a 3rd embodiment. It is a section explanatory view of a support device concerning a 3rd embodiment. It is a side view of the support device concerning a 4th embodiment. It is a section explanatory view of a support device concerning a 4th embodiment. It is a side view of the support device concerning a 5th embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building frame 2 Vertical material 3 Horizontal material 4 Diagonal material 4 'Tie material 6 Support apparatus 7 Anchor plate 7A Convex shape part 7B Support surface 8, 8', 8 "Bow-shaped metal fitting 8A Holding surface 8B Curved part 8C Fixed surface 8D Recessed space 8E Slit 8F Stepped plane 9 Laminated body 10 Sliding plate 11 Viscoelastic member 12 Diagonal material mounting piece

Claims (5)

A support device for elastically supporting an end of a diagonal member on a vertical member or a horizontal member of a building structure frame,
An anchor plate fixed to the building structure frame;
It has a flat pressing surface at the top, and has curved portions that are curved in an S shape or an inverted S shape at both ends of the pressing surface, and is formed into a substantially Ω shape as a whole. An arcuate fitting fixed to the plate;
A laminate composed of a sliding plate and a viscoelastic member that are tightly held between the pressing surface of the arcuate fitting and the anchor plate;
An oblique material mounting piece that is formed upright from the holding surface of the bow-shaped metal fitting or the sliding plate and attaches an end of the diagonal material;
A support device for diagonal members, comprising:   The diagonal plate support device according to claim 1, wherein the anchor plate has a convex portion that protrudes into a concave space of the arcuate fitting and supports the laminated body.   3. The diagonal member support device according to claim 1, wherein a stepped flat surface is formed on the flat surface of the top of the arcuate metal fitting, and the stepped flat surface is used as the pressing surface.   The diagonal member support device according to claim 1, wherein the diagonal member mounting piece is formed so as to rise from the sliding plate.   2. The diagonal member support device according to claim 1, wherein the diagonal member mounting piece is integrally formed from the bow-shaped bracket.

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