JP3134924U - Seismic reinforcement equipment for wooden buildings - Google Patents

Abstract

[PROBLEMS] To reliably absorb the vibration of a wooden building in a direct-type vertical shaking earthquake, a horizontal shaking earthquake, etc., even if there is a tilt or repeated shaking of the wooden building, and to the foundation To provide a seismic reinforcement device for wooden buildings, which can always maintain stability by returning each pillar to its original normal position.
A seismic reinforcement device for a wooden building according to the present invention includes a thin belt-like reinforcing belt material that can be expanded and contracted to enable integration of a foundation, a base, and a pillar, and a shock absorbing function that can absorb vibration. The reinforcing belt material is arranged in a crossing manner between the left and right struts via the intermediate column, and the middle column and the left and right struts respectively above and below the left and right columns. While fixed at three points, the hole-down hardware fixed the lower end side of the reinforcing belt material arranged in an oblique crossing manner to the base and the foundation.
[Selection] Figure 1

Description

  The present invention relates to a seismic reinforcement device for other wooden buildings such as general wooden houses and terrace houses.

  Conventionally, in order to prevent each joint portion of the foundation, foundation, and pillar of a wooden building from being detached and destroyed by an earthquake or the like, a hole down hardware is attached to these foundation, foundation, and pillar.

  That is, in order to prevent the foundation and pillar from shearing due to the force of pulling the foundation and pillar from the foundation due to an earthquake etc., hole down hardware attached from the foundation to the foundation and pillar is used. ing.

In addition, as a conventional seismic strengthening construction method for wooden buildings, as shown in Patent Document 1, it is possible to minimize the collapse of a house due to a large earthquake, etc., and it is easy to construct an earthquake resistant structure with a simple structure and low cost. A possible technique is provided by the applicant himself.
JP-A-11-93262

  However, although the conventional hole-down hardware itself has a certain degree of strength, the wood itself constituting the wooden building has a limit to the metal member constituting the hole-down hardware, and the seismic intensity is 7 The current situation is that it cannot sufficiently withstand a major earthquake of the class.

  In addition, in the conventional seismic strengthening method for wooden buildings, for example, the foundation and pillars are restored to the foundation due to the inclination and repeated shaking of the wooden building in the direct type vertical shaking earthquake, the horizontal shaking earthquake, etc. It is impossible to return to the normal position.

  In particular, since the reinforcing belt material constituting the conventional seismic reinforcement device is formed only of a metal material having earthquake resistance and fire resistance, strength up to about 2 tons can be obtained in the maximum load inspection by a tensile tester. However, the strength of 10 tons or more has not been obtained.

  Therefore, the present invention was created in view of the existing circumstances as described above. Can be reliably absorbed, and can always be kept stable by returning the foundation and pillars to their original normal positions relative to the foundation, minimizing the effects of shaking on wooden structures. An object of the present invention is to provide a seismic reinforcement device for a wooden building that can be sewn and that can sufficiently perform seismic reinforcement even if it is a limited wood. .

  In order to solve the above-described problems, in the seismic reinforcement device for wooden buildings according to the present invention, a thin belt-like reinforcing belt material that can be expanded and contracted to enable integration of the foundation, foundation, and pillar, and vibration absorption Including a seismic reinforcement device that is used in combination with a hole-down hardware having a shock-absorbing function, and the reinforcing belt material is disposed in a crossing manner between the left and right struts via the intermediate pillar, By fixing the lower end side of the reinforcing belt material arranged in an oblique crossing manner to the base and the foundation, the hole down hardware is fixed at the three positions of the left and right support columns, respectively. Solved the problem.

  Further, the reinforcing belt material is formed by laminating a reinforcing synthetic fiber such as an aramid fiber or a carbon fiber to a steel material, thereby solving the above-mentioned problem.

  The reinforcing belt material is a steel material having a thickness of 0.19 mm or more and 1.00 mm or less that has earthquake resistance, and is reinforced with aramid fiber or carbon fiber having a thickness of 1.6 mm or more and 3.15 mm or less. The above-mentioned problem was solved by laminating synthetic fibers for use.

  Furthermore, the hole-down hardware is composed of a column contact reinforcing member fixed along the longitudinal direction of the column and a foundation contact reinforcing member fixed to the foundation, and the bottom contact portion of the column contact reinforcing member and the foundation contact The above-described problem has been solved by connecting and fixing the upper end portion of the reinforcing member via a connecting means including a connecting bolt and a buffer member.

  According to the present invention, even if there is a tilt or repeated swing of a wooden building in a direct type vertical earthquake, a horizontal earthquake, etc., these vibrations can be absorbed reliably and In addition, it is possible to always maintain stability by returning the foundation and pillars to their original normal positions, and it is possible to minimize the influence of shaking on wooden buildings, and there is a limit on the seismic reinforcement device. Even so, the seismic reinforcement can be sufficiently performed.

  That is, the seismic reinforcement device for a wooden building according to the present invention is formed by using a reinforcement belt material and a hole-down hardware together, and the reinforcement belt material is skewed between the left and right support columns via the intermediate pillar. It is arranged in an intersecting manner and fixed at three points in the middle of the intermediate pillar and the upper and lower sides of the left and right struts, and the hole down hardware has the lower end side of the reinforcing belt material arranged in an oblique intersection as the base and the foundation. Because it is fixed, the reinforcing action of the reinforcement belt material combined with the vibration absorption function of the hole-down hardware, the external shearing force, twisting force, stress, etc. acting on the wooden building The entire wooden building can absorb such vibrations against large rolls caused by collapsing forces and direct earthquakes.

  As a result, the wooden building is not directly affected by the collapsing force or large roll from the outside. In addition, it is possible to always maintain stability by returning the foundation and the pillar to the original normal base position, and it is possible to minimize the influence of shaking on the wooden building.

  In addition, the reinforcing belt material is formed by a thin strip formed by laminating a reinforcing synthetic fiber such as an aramid fiber or carbon fiber to a steel material, so that the strength of the steel material and the strength of the aramid fiber or carbon fiber are incompatible. As a result, a tensile strength of about 10 tons or more can be imparted to the reinforcing belt material. For example, a reinforced belt material having a width of 40 mm can have a guaranteed yield strength of 40 tons or more for a tensile strength per meter of length.

  The reinforcing belt material is a steel material having a thickness of 0.27 mm or more and 1.00 mm or less that is seismic and fire resistant, and a reinforcing material such as aramid fiber or carbon fiber that is 0.19 mm or more and 3.15 mm or less in thickness. Since the synthetic fibers for use are laminated together, an overall thin and light weight seismic reinforcement device can be produced easily and inexpensively, and installation work on a wooden building is facilitated.

  Furthermore, the hole-down hardware is composed of a column contact reinforcing member fixed along the longitudinal direction of the column and a foundation contact reinforcing member fixed to the foundation, and the bottom contact portion of the column contact reinforcing member and the foundation contact Since the upper end of the reinforcing member is connected and fixed via a connecting means consisting of a connecting bolt and a buffer member, the wooden building is subject to collapsing action force such as shearing force, torsional force, and stress from outside, and large rolls. Even when it is directly affected, it is possible to reliably return the foundation and the pillar to the original normal foundation position, and to minimize the influence of shaking on the wooden building.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  The seismic reinforcement device for a wooden building according to the present invention enables the foundation P, the base Q, and the pillar R to be integrated.

  As shown in FIG. 1, this seismic reinforcement device has a configuration in which a stretchable thin strip-shaped reinforcing belt member 1 and a hole-down hardware 2 having a shock absorbing function capable of absorbing vibration are used in combination.

  Reinforcing belt material 1 is a non-conductive, non-magnetic, lightweight, with a yield strength of 1176 kN / m, knitted in one or two directions with aramid fibers excellent in high strength, high elasticity, alkali resistance, heat resistance, and water resistance. A fibra sheet AK-120 (trade name) with a width of about 10 cm and a length of about 3 m is formed in a thin strip shape. The expansion / contraction degree of the reinforcing belt material 1 is 10% per meter.

  That is, the aramid fiber which is a reinforcing synthetic fiber forming the reinforcing belt material 1 is a polyamide having an aromatic ring in the main chain and a high strength and a high elastic modulus, and an aromatic diamine and a dicarboxylic acid chloride are interfacially weighted. It is synthesized by condensation or low temperature solution polycondensation.

  This aramid fiber is formed into a sheet knitted in one direction or two directions, or in a mesh shape, or a so-called aramid precast is formed in which a sheet-shaped aramid fiber is impregnated with a resin in advance as a FRP molded plate. Equally used.

  A wooden building is constructed with a foundation Q in a partition shape on a foundation P such as a cloth foundation, a solid foundation, and an independent foundation via a foundation packing. A frame wall material is constructed around the building via S, girder T, etc., and a land beam is built on the girder T that is horizontally mounted on a through pillar (not shown) extending above the frame wall material. It is what

  In addition, as the seismic hardware 16, aramid fibers knitted in a braid shape, impregnated and cured with a resin to form a rod shape, and formed into a V shape are used for the base Q, the column R, and the girder T. A V-shaped seismic hardware 16 is attached to the side surface of the shaft assembly portion with a fastening material such as a strong adhesive, a nail, or a screw so as to straddle the shaft assembly portion.

  Furthermore, the carbon fiber, which is another reinforcing synthetic fiber forming the reinforcing belt material 1, is a polycondensate of terephthalic acid and ethylene glycol, and has the appearance of a slightly yellow long fiber whose product name is called polyester filament. It has a specific gravity of 1.35 to 1.40 (20 ° C.), a melting point of about 255 ° C., and a glass transition point of about 75 ° C.

  Further, the reinforcing belt material 1 is made of a steel material having a fire resistance of 0.19 mm or more and 1.00 mm or less to an aramid fiber or carbon fiber having a thickness of 1.6 mm or more and 3.15 mm or less. A reinforcing synthetic fiber may be bonded together.

  When the reinforcing belt member 1 is used, as shown in FIG. 1, in the rectangular opening surface partitioned by the base Q, the left and right columns R, the intermediate column S, and the beam member T, It is to be installed in a brace shape.

  Then, as shown in FIG. 5A, the upper end of the reinforcing belt material 1 is fixed via an L-shaped fixing plate 15. Further, as shown in FIGS. 5B and 5C, the lower end extending portion of the reinforcing belt material 1 is nailed and fixed to the base Q and the column R, respectively.

  As shown in FIG. 2 and FIG. 3, the hole down hardware 2 includes a column contact reinforcing member 3 for fixing to the base Q and the column R, a base contact reinforcing member 4 for fixing to the foundation P, The connecting bolt 5 for connecting the two members and a connecting means 7 each comprising a buffer member 6 wound around the connecting bolt 5 are generally constituted.

  As shown in FIGS. 4 (a) and 4 (b), the column contact reinforcing member 3 includes a base portion 8 having a substantially U-shaped box frame shape when viewed from the front on one side of the lower end side of the band plate. A connection bolt insertion hole 9 for inserting the connection bolt 5 is formed in the center.

  In addition, a plurality of bolt insertion holes 10 are formed along the longitudinal direction of the strip for fixing to the base Q and the column R. By striking a slightly thicker bolt into the bolt insertion hole 10, the strength of the column R can be supported to the limit.

  As shown in FIG. 3, when using the hole-down hardware 2, the column contact reinforcing member 3 is fixed to the base Q and the column R with bolts, and the lower base portion 8 is used as a joint portion between the foundation P and the base Q. It is arranged to be located. At this time, the bolt insertion hole 10 located at the lowermost stage of the column abutting reinforcing member 3 is arranged so as to abut on the transverse beam on the base Q.

  The base contact reinforcing member 4 includes a flange portion 12 at a part of the upper end side of one surface of a rectangular plate-shaped base plate 11 made of a galvanized iron plate (stainless steel) having a thickness of about 6 mm. A connection bolt insertion hole 13 for inserting the connection bolt 5 is formed.

  The flange portion 12 is a foundation installed on the foundation P in the right column R so that the lower end extending portion of the reinforcing belt member 1 that is attached to the left and right obliquely intersecting shape is covered with the base plate 11. In the contact reinforcing member 4, the flange portion 12 is placed on the left side of the base plate 11, and in the foundation contact reinforcing member 4 installed on the foundation P in the left column R, the flange portion 12 is placed on the base plate 11. It is formed on the right side.

  In addition, a plurality of anchor bolt insertion holes 14 are formed in the base plate 11 of the foundation contact reinforcing member 4, and after the anchor bolt front end side is inserted into the anchor bolt insertion holes 14 of the foundation contact reinforcement member 4. By tightening and fixing with a nut, the upper flange portion 12 is arranged to face the base portion 8 of the column contact reinforcing member 3 with an interval of about 30 mm.

  Then, from the lower side of the connection bolt insertion hole 13 of the flange portion 12 of the foundation contact reinforcing member 4 fixed to the foundation P, the connection bolt 5 is provided as a buffer member 6 via, for example, a high compression spring for impact control. After being inserted and pulled out above the connection bolt insertion hole 9 of the base portion 8 of the column contact reinforcing member 3, it is fastened and fixed with a nut.

  The column contact reinforcing member 3 is covered with a stainless base cover as necessary.

  Next, an example of use and construction of the seismic reinforcement apparatus configured as described above will be described.

  First, as shown in FIG. 5 (a), the two reinforcing belt members 1 are crossed obliquely on the left and right sides on the rectangular opening surface partitioned by the base Q, the left and right columns R, the intermediate column S, and the girder T. In other words, it is attached in a muscular shape.

  As shown in FIG. 5 (b), the upper end of the reinforcing belt member 1 is fixed via an L-shaped fixing plate 15. As shown in FIG. 5 (c), the lower end extending portion of the reinforcing belt member 1 is fixed. Are fixed to the base Q and the pillar R with nails.

  Moreover, as shown in FIG.4 (b), it arrange | positions so that the column contact | abutting reinforcement member 3 of the hole-down hardware 2 may be covered from the reinforcement belt material 1, and it fixes to the base Q and the column R with a volt | bolt. The lower base portion 8 is disposed at the joint portion between the foundation P and the base Q.

  At this time, the bolt insertion hole 10 positioned at the lowermost stage of the column contact reinforcing member 3 is placed in contact with the transverse beam on the base Q.

  On the other hand, as shown in FIG. 2 and FIG. 3, anchor bolts are driven in advance into a plurality of locations of the foundation P made of concrete, and the tip end side of the anchor bolts is inserted into the anchor bolt insertion holes 14 of the foundation contact reinforcing member 4. Tighten with nuts.

  At this time, the lower end portion of the reinforcing belt member 1 is sandwiched between the base plate 11 and the base P of the base contact reinforcing member 4. Thus, the flange portion 12 and the base portion 8 are arranged so that the mutual connection bolt insertion holes 9 and 13 face each other in the vertical direction with an interval of about 30 mm.

  Then, as shown in FIG. 3, the connection bolt 5 is inserted into the connection bolt insertion hole 13 of the base portion 8 through the high compression spring for impact control as the buffer member 6 and the square seat as the coupling means 7. After pulling out above the connection bolt insertion hole 9 of the base portion 8 of the contact reinforcing member 3, it is fastened and fixed with a nut.

  In addition, as shown in FIG.5 (c), the excess part of the reinforcement belt material 1 extended below the baseplate 11 of the base contact reinforcement member 4 is cut.

  The present invention can also be used in the place where the head of the column R and the horizontal member are assembled, and can also be used for a soft beam or the like in which an excessive pulling force is applied.

  In addition, for example, a seismic reinforcement device for a wooden building that can increase the tensile strength of the reinforcing belt material 1 to 10 tons or more so that it can withstand a large earthquake with a seismic intensity of 7 class is provided. On the other hand, even if there is a limit of wood, it can be widely used for wooden buildings of various structures as a seismic reinforcement device for wooden buildings that can sufficiently perform seismic reinforcement.

It is a partially notched front view which shows the use condition of the earthquake-proof reinforcement apparatus of the wooden building which concerns on this invention. It is a partially notched front view which shows the use condition of a hole down metal fitting. It is a partially notched perspective view which shows the use condition of a hole down metal fitting and a reinforcement belt material. It shows an example of a hole down hardware, (a) is an exploded front view of a column contact reinforcement member and a foundation contact reinforcement member, (b) is based on a column contact reinforcement member and a foundation contact reinforcement member, It is a side view of the state attached to the foundation and the pillar. The installation procedure of the seismic reinforcement device is shown. (A) is a partially cutaway front view showing a state in which the upper part of the reinforcing belt material arranged in an oblique cross is fixed to the beam material with an L-shaped fixing plate. b) is a partially cutaway front view showing a state in which the lower part of the reinforcing belt material is nailed to the base and the foundation, and (c) is a partially cutaway front view showing a state in which a hole down hardware is attached from above the reinforcing belt material. is there.

Explanation of symbols

P ... Foundation Q ... Base R ... Column S ... Intermediate column T ... Girder material 1 ... Reinforcement belt material 2 ... Hole down hardware 3 ... Column contact reinforcement member 4 ... Foundation contact reinforcement member 5 ... Connection bolt 6 ... Buffer member 7 ... Connecting means 8 ... Base part 9, 13 ... Connection bolt insertion hole 10 ... Bolt insertion hole 11 ... Base plate 12 ... Flange part 14 ... Anchor bolt insertion hole 15 ... L-shaped fixing plate 16 ... V-shaped seismic metal

Claims (4)

  A seismic reinforcement device comprising a thin belt-like reinforcing belt material that can be expanded and contracted so as to enable integration of the foundation, foundation, and pillar, and a hole-down hardware having a shock absorbing function capable of absorbing vibration, The reinforcing belt material is arranged in a skewed manner between the left and right struts via the intermediate pillar, and is fixed at the three positions of the center of the intermediate pillar and the top and bottom of the left and right struts. A seismic reinforcement apparatus for wooden buildings, wherein the lower end side of the reinforcing belt material arranged in a crossing manner is fixed to a base and a foundation.   The seismic reinforcement device for a wooden building according to claim 1, wherein the reinforcing belt material is formed by bonding a reinforcing synthetic fiber such as an aramid fiber or a carbon fiber to a steel material.   Reinforcement belt material is a synthetic material for reinforcement such as aramid fiber or carbon fiber with a thickness of 1.6 mm or more and 3.15 mm or less to a steel material having a thickness of 0.19 mm or more and 1.00 mm or less with earthquake resistance. The seismic reinforcement apparatus for wooden buildings according to claim 1 or 2, wherein the fibers are bonded together.   The hole-down hardware is composed of a column contact reinforcing member fixed along the longitudinal direction of the column and a foundation contact reinforcing member fixed to the foundation, and the lower end portion of the column contact reinforcing member and the foundation contact reinforcing member The seismic reinforcement apparatus for a wooden building according to any one of claims 1 to 3, wherein the upper end portion of the wooden building is connected and fixed through connecting means including a connecting bolt and a buffer member.

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