JP6782058B1 - Construction method of a wooden building using a perforated sheet-covered PC plate - Google Patents

Construction method of a wooden building using a perforated sheet-covered PC plate Download PDF

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JP6782058B1
JP6782058B1 JP2020016013A JP2020016013A JP6782058B1 JP 6782058 B1 JP6782058 B1 JP 6782058B1 JP 2020016013 A JP2020016013 A JP 2020016013A JP 2020016013 A JP2020016013 A JP 2020016013A JP 6782058 B1 JP6782058 B1 JP 6782058B1
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薫和 半澤
薫和 半澤
和夫 半澤
和夫 半澤
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薫和 半澤
薫和 半澤
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Abstract

【課題】減震技術の多様化の一つとして、仕口等に金物を使用する近年の木造建築に適し、地震エネルギーを吸収することができる木造建物の構築工法を提供する【解決手段】多数の透水孔が縦横に貫設され引張応力を鉄筋に代わって負担する有孔シートが両面を被覆している薄肉の有孔シート被覆PC版を木造建物の四隅に位置する独立柱を挟んで互いに直交する二方向に該独立柱とは緩衝材が介挿される隙間を有して配置し、前記有孔シート被覆PC版の下端部は前記木造建物の基礎に埋設された固定端であって上端部は該木造建物の梁または桁まで延伸し該梁または桁とは非接触の自由端である、構成とした。【選択図】図3PROBLEM TO BE SOLVED: To provide a construction method of a wooden building which is suitable for a recent wooden construction using hardware such as a joint and can absorb seismic energy as one of the diversification of seismic reduction technology. A thin-walled perforated sheet-covered PC plate with perforated sheets covering both sides, which are pierced vertically and horizontally and bear the tensile stress instead of the reinforcing bars, sandwiching the independent columns located at the four corners of the wooden building. The independent columns are arranged in two orthogonal directions with a gap through which a cushioning material is inserted, and the lower end of the perforated sheet-coated PC plate is a fixed end embedded in the foundation of the wooden building and is the upper end. The part was constructed so as to extend to the beam or girder of the wooden building and have a free end in contact with the beam or girder. [Selection diagram] Fig. 3

Description

本発明は、有孔シートで被覆された薄肉のPC版を使用した耐震性を具える木造建物の構築工法に関する。 The present invention relates to a method for constructing a wooden building having earthquake resistance using a thin-walled PC plate covered with a perforated sheet.

近年、自然災害の脅威は以前にもまして増大してきており、地震災害においてもその例外ではない。加えて、従来の木造建築は仕口の変形により地震エネルギーを吸収することができたが、現在では、従来技術が伝承されず金物に頼らざるを得ないこともあって木造建物の倒壊が増大する傾向にある。この木造建物の倒壊を防止する技術としては、地震エネルギーを少なくする減震技術や木造建物自体の軸組みを地震に対して強化する技術がある。 In recent years, the threat of natural disasters has increased more than ever before, and earthquake disasters are no exception. In addition, conventional wooden buildings were able to absorb seismic energy due to deformation of the joints, but nowadays, the collapse of wooden buildings is increasing due to the fact that conventional techniques have not been handed down and there is no choice but to rely on hardware. Tend to do. Technologies for preventing the collapse of this wooden building include seismic reduction technology that reduces seismic energy and technology that strengthens the framework of the wooden building itself against earthquakes.

出願人は減震技術として、摩擦減震装置により木造建物の変形を少なくして建物の倒壊を免れる方法を提案してきた。この摩擦減震装置に関する技術は例えば特許文献1に開示されている。また、木造建物の軸組みを強化する技術は特許文献2に開示されている。 As a seismic reduction technology, the applicant has proposed a method of reducing the deformation of a wooden building by using a friction seismic reduction device to avoid the collapse of the building. A technique relating to this friction damping device is disclosed in, for example, Patent Document 1. Further, a technique for strengthening the framework of a wooden building is disclosed in Patent Document 2.

特許文献1に開示の技術は、発明の名称「摩擦減震装置」に係り「床下空間が換気型や密閉型等の木造住宅に対応でき、簡単な構造を有し低コストで施工性にも優れ、中規模や大規模地震に有効に機能する摩擦減震装置を提供する。」ことを課題としていて、その解決手段を「土台に接触する円盤状の第1の滑り平板と、基礎に接触する円盤状の第2の滑り平板と、該第1の滑り平板および該第2の滑り平板に介挿される円盤状の第3の滑り平板とからなり、前記第1の滑り平板および前記第2の滑り平板の厚さは略同一であり、前記第3の滑り平板はそれより厚く形成され、その中心部にはアンカーボルトが遊貫する挿通孔が貫設され、該第1の滑り平板の直径は前記土台の幅と略同一であって該第2の滑り平板や該第3の滑り平板よりも大きく形成されるとともに、該第1の滑り平板の挿通孔の直径、該第3の滑り平板の挿通孔の直径および該第2の滑り平板の挿通孔の直径はこの順に小さくなるように形成され、重ね合わせ面は平滑で均等に接触する構成」としている。 The technology disclosed in Patent Document 1 is related to the title of the invention "friction seismic isolation device" and "the underfloor space can correspond to a wooden house such as a ventilation type or a closed type, has a simple structure, and is low in cost and workability. The challenge is to provide an excellent friction seismic isolation device that functions effectively for medium- and large-scale earthquakes, and the solution is to "contact the first disc-shaped sliding flat plate that contacts the base and the foundation." It is composed of a disk-shaped second sliding plate, the first sliding plate, and a disk-shaped third sliding plate inserted between the first sliding plate and the second sliding plate, and the first sliding plate and the second sliding plate. The thickness of the sliding flat plate is substantially the same, the third sliding flat plate is formed to be thicker than that, and an insertion hole through which the anchor bolt penetrates is provided in the center of the sliding flat plate. The diameter is substantially the same as the width of the base and is formed larger than the second sliding plate and the third sliding plate, and the diameter of the insertion hole of the first sliding plate and the third sliding. The diameter of the insertion hole of the flat plate and the diameter of the insertion hole of the second sliding flat plate are formed to be smaller in this order, and the overlapping surfaces are smooth and evenly contacted. "

また、特許文献2に開示の技術は、発明の名称「地震時の既設木造軸組構造体の完全倒壊防止用部材」に係り「地震による外力を受けた木造軸組構造体の変形初期には殆ど剪断力には抵抗力を発揮しないが、層間変形角が1/15ラジアンを超えた辺りから急激に抵抗力を発揮する完全倒壊防止部材及び完全倒壊防止部材を活用して地震時に既設木造軸組構造体が完全倒壊することを防止する工法を提供する」ことを課題としていて、その解決手段を「木質矩形フレームと、木質矩形フレームが形成する平面内に配置された少なくとも2つの木質三角形フレームを相互に相対移動できないような態様で配置して構成された完全倒壊防止部材であって、完全倒壊防止部材を既設木造軸組構造体の柱と横架材とで構成された平面空間内に、木質矩形フレームの個々の部材の外側側面と柱及び横架材の内側側面とが実質的に密接するように配置する。」構成としている。 Further, the technique disclosed in Patent Document 2 is related to the title of the invention "member for preventing complete collapse of the existing wooden frame structure at the time of an earthquake" and "in the initial stage of deformation of the wooden frame structure subjected to an external force due to an earthquake". Almost no resistance to shearing force, but existing wooden shafts in the event of an earthquake by utilizing complete collapse prevention members and complete collapse prevention members that rapidly exert resistance from around 1/15 radian where the interlayer deformation angle exceeds 1/15 radian The challenge is to "provide a construction method that prevents the assembled structure from completely collapsing", and the solution is "a wooden rectangular frame and at least two wooden triangular frames arranged in a plane formed by the wooden rectangular frame." It is a complete collapse prevention member configured by arranging the members so that they cannot move relative to each other, and the complete collapse prevention member is placed in a plane space composed of columns and horizontal members of an existing wooden frame structure. , The outer side surface of each member of the wooden rectangular frame and the inner side surface of the pillar and the horizontal member are arranged so as to be substantially in close contact with each other. "

特許第5657825号公報Japanese Patent No. 5657825 特開2017-096041号公報Japanese Unexamined Patent Publication No. 2017-096041

しかしながら、特許文献1に開示の技術は、土台と基礎との間に摩擦減震装置を介挿させる必要があることから、すべての木造建物に設置できるとは限らず、また、特許文献2に開示の技術は、「完全倒壊防止用部材」が所定の大きさと質量を有することから、これもまた、すべての木造建物に設置できるとは限らないし、減震技術の選択肢を増やし、その多様化を図る必要がある。 However, the technique disclosed in Patent Document 1 cannot be installed in all wooden buildings because it is necessary to insert a friction damping device between the base and the foundation, and Patent Document 2 also provides. As for the disclosed technology, since the "complete collapse prevention member" has a predetermined size and mass, it cannot be installed in all wooden buildings, and the options for seismic reduction technology are increased and diversified. It is necessary to plan.

そこで、本願発明は、減震技術の多様化の一つとして、仕口等に金物を使用する近年の木造建築に適し、地震エネルギーを吸収することができる木造建物の構築工法を提供することを目的とする。 Therefore, the present invention provides, as one of the diversification of seismic reduction techniques, a method for constructing a wooden building that is suitable for recent wooden constructions that use hardware for joints and the like and can absorb seismic energy. The purpose.

上記目的を達成するため、本願請求項1に係る木造建物の構築工法は、製作時のコンクリート余剰水を排出する多数の透水孔が縦横に貫設され製作後にコンクリート部材として使用されるときには、該コンクリート部材に作用する引張応力を鉄筋に代わって負担する有孔シートが両面を被覆している矩形の有孔シート被覆PC版が、木造建物の四隅に位置する独立柱を挟んで互いに直交する二方向に、該独立柱とは緩衝材が介挿される隙間を有して配置され、さらに前記独立柱の中間に中間独立柱を有する場合には、前記有孔シート被覆PC版は該中間独立柱を挟んで平行な方向およびそれらに直交する方向に、該中間独立柱とは緩衝材が介挿される隙間を有して配置され、前記有孔シート被覆PC版の下端部は前記木造建物の基礎に埋設された固定端であって、上端部は該木造建物の梁または桁まで延伸し該梁または桁とは非接触の自由端である、ことを特徴としている。なお、両面とは、厚さのある平板のうちの厚さ部分を除く平面部分の面をいう。
また、本願請求項2に係る木造建物の構築工法は、請求項1に記載の木造建物の構築工法であって、前記有孔シートはステンレススチール製若しくは難燃性の炭素繊維製若しくは難燃性のガラス繊維製若しくは難燃性の高分子プラスチック製の網目状のメッシュシートまたは平板に孔を打ち抜いたパンチングシートである、ことを特徴としている。
そして、本願請求項3係る木造建物の構築工法は、請求項1または請求項2に記載の木造建物の構築工法であって、前記木造建物に配設された互いに向き合う前記有孔シート被覆PC版の側面には間柱が該有孔シート被覆PC版とは隙間を有して添設されて該木造建物の軸組みが形成され、該隙間には緩衝材が介挿される、ことを特徴としている。
さらに、本願請求項4係る木造建物の構築工法は、請求項1ないし請求項3のいずれかに記載の木造建物の構築工法であり、前記有孔シート被覆PC版は薄肉であってその厚さは略100mm以下である、ことを特徴としている。
In order to achieve the above object, the method for constructing a wooden building according to claim 1 of the present application is such that when a large number of water-permeable holes for discharging excess concrete water at the time of production are provided vertically and horizontally and used as a concrete member after production. A rectangular perforated sheet-covered PC plate whose both sides are covered with a perforated sheet that bears the tensile stress acting on the concrete member instead of the reinforcing bar is orthogonal to each other with independent columns located at the four corners of the wooden building. In the direction, when the independent pillar is arranged with a gap through which the cushioning material is inserted and the intermediate independent pillar is further provided in the middle of the independent pillar, the perforated sheet-covered PC plate is the intermediate independent pillar. The intermediate independent pillars are arranged with a gap through which a cushioning material is inserted, and the lower end portion of the perforated sheet-covered PC slab is the foundation of the wooden building in parallel directions and directions orthogonal to the intermediate independent columns. It is a fixed end buried in a concrete building, and the upper end thereof extends to a beam or girder of the wooden building and is a free end that is not in contact with the beam or girder . In addition, both sides refer to the surface of the flat portion excluding the thick portion of the thick flat plate.
Also, construction method of wooden buildings according to the claims 2, a construction method of wooden buildings according to claim 1, wherein the perforated sheet is of stainless steel or flame retardant carbon fiber manufactured or flame retardancy of It is characterized in that it is a mesh sheet made of glass fiber or a mesh-like mesh sheet made of flame-retardant polymer plastic, or a punching sheet in which holes are punched in a flat plate.
The wooden building construction method according to claim 3 of the present application is the wooden building construction method according to claim 1 or 2, wherein the perforated sheet-covered PC version arranged in the wooden building faces each other. A stud is attached to the side surface of the wooden building with a gap from the perforated sheet-covered PC plate to form a frame of the wooden building, and a cushioning material is inserted in the gap. ..
Further, the wooden building construction method according to claim 4 of the present application is the wooden building construction method according to any one of claims 1 to 3 , and the perforated sheet-covered PC plate is thin and has a thickness thereof. Is characterized in that it is approximately 100 mm or less.

本願発明は以下の効果を奏する。
(1)平板状の有孔シート被覆PC版は鉄筋に代わって引張応力を負担する有孔シートで少なくとも両面が被覆されていることから、コンクリート中の鉄筋が不要となって、打設時におけるコンクリートの回り込みが良好となる。また、有孔シートを型枠代わりとした場合には、コンクリート余剰水が透水孔から排出され、かつ、PC版製作時に長辺方向を上にしてコンクリートを打設すれば、コンクリートの側圧が小さくなり、有孔シートの膨らみは許容し得るほど小さなものになる。なお、鉄筋に代わる有孔シートは、引張応力以外にも、剪断応力を補強する役割を担うとともに、PC版自体のクラック防止にも貢献する。
(2)有孔シートが難燃性の炭素繊維製、難燃性のガラス繊維製、難燃性の高分子プラスチック製またはステンレススチール製のメッシュシートで形成されることにより、有孔シートに作用する引張応力に適した網径または網目の太さを自由に設計できる。また、平板に孔を打ち抜いたパンチングシートであっても、引張応力に適した平板の厚さやパンチングの形状を自由に選択することができる。
(3)なお、本願発明に係る有孔シート被覆PC版では、鉄筋が不要であり、その上、PC版製作時に有効シートを型枠代わりとすればコンクリートパネルも不要となり、鉄筋やコンクリートパネル製造時に必要なCOの発生が抑えられるので、地球環境の保全にも資することになる。
(4)下端部が基礎に埋設された固定端であり上端部が自由端の有孔シート被覆PC版が木造建物の四隅に位置する独立柱を挟んで互いに直交する二方向(X方向およびY方向)に配置され、中間に中間独立柱を有する場合には有孔シート被覆PC版は中間独立柱を挟んでX方向およびY方向の三つの方向に配置されていて、木造の軸組みとは緩衝材を介して緩やかに接触している。このため、地震の揺れによる慣性力が木造の軸組みに働いても、PC版の干渉により木造軸組みの層間変位が制限されて、建物損壊を防ぐことができる。
(5)例えば、木造建築に多用される105mm×105mmの柱よりも薄く有孔シート被覆PC版の厚さを100mm以下の略75mm程度とすれば、有孔シート被覆PC版は木造建築の構造体として表面に現れることがなく、各部の収まりがよくなって設計の自由度が増す。また、蓄熱槽として兼用する場合は、有孔シート被覆PC版に外断熱をして外装を施し、室内側の厚みを付加しても壁全体の厚みを90mmないし100mmとすることができる。
The invention of the present application has the following effects.
(1) Flat plate-shaped perforated sheet coating Since the PC plate is coated on at least both sides with a perforated sheet that bears tensile stress instead of the reinforcing bar, the reinforcing bar in the concrete becomes unnecessary, and at the time of casting. Good wraparound of concrete. In addition, when a perforated sheet is used as a formwork, excess concrete water is discharged from the permeable holes, and if concrete is placed with the long side facing up when manufacturing the PC plate, the lateral pressure of the concrete is small. Therefore, the bulge of the perforated sheet becomes small enough to be tolerated. The perforated sheet that replaces the reinforcing bar plays a role of reinforcing the shear stress in addition to the tensile stress, and also contributes to the prevention of cracks in the PC plate itself.
(2) The perforated sheet acts on the perforated sheet by being formed of a mesh sheet made of flame-retardant carbon fiber, flame-retardant glass fiber, flame-retardant polymer plastic or stainless steel. The mesh diameter or mesh thickness suitable for the tensile stress to be applied can be freely designed. Further, even if the punching sheet has holes punched in the flat plate, the thickness of the flat plate and the shape of the punching suitable for the tensile stress can be freely selected.
(3) The perforated sheet-coated PC plate according to the present invention does not require reinforcing bars, and if an effective sheet is used as a formwork when manufacturing the PC plate, no concrete panel is required, and reinforcing bars and concrete panels are manufactured. Since the generation of CO 2 that is sometimes required is suppressed, it also contributes to the conservation of the global environment.
(4) Perforated sheet-covered PC slabs with a fixed end buried in the foundation at the lower end and a free end at the upper end are orthogonal to each other with independent columns located at the four corners of the wooden building in two directions (X direction and Y). If it is arranged in the direction) and has an intermediate independent column in the middle, the perforated sheet-covered PC plate is arranged in three directions, the X direction and the Y direction, with the intermediate independent column in between, and what is a wooden frame? It is in gentle contact with the cushioning material. Therefore, even if the inertial force due to the shaking of the earthquake acts on the wooden frame, the inter-story displacement of the wooden frame is limited by the interference of the PC plate, and the building damage can be prevented.
(5) For example, if the thickness of the perforated sheet-covered PC plate is about 75 mm, which is 100 mm or less, thinner than the 105 mm × 105 mm pillars often used in wooden construction, the perforated sheet-covered PC plate has a structure of wooden construction. It does not appear on the surface as a body, and each part fits better, increasing the degree of freedom in design. Further, when it is also used as a heat storage tank, the thickness of the entire wall can be 90 mm to 100 mm even if the perforated sheet-coated PC plate is externally heat-insulated to provide an exterior and the thickness on the indoor side is added.

図1は実施例に係る有孔シート被覆PC版の正面図であり、図1(a)ないし図1(c)はそれぞれ有孔シート被覆PC版の実施例である。FIG. 1 is a front view of a perforated sheet-coated PC plate according to an embodiment, and FIGS. 1 (a) to 1 (c) are examples of a perforated sheet-coated PC plate, respectively. 図2は実施例に係る木造建築の土台伏せ図である。FIG. 2 is a base-down view of the wooden building according to the embodiment. 図3は実施例に係る基礎伏せ鳥瞰図である。FIG. 3 is a bird's-eye view of the foundation according to the embodiment. 図4は実施例に係る木造建築の正面軸組図である。FIG. 4 is a front frame view of a wooden building according to an embodiment. 図5は実施例に係る木造建築の軸組立面詳細図である。FIG. 5 is a detailed view of the shaft assembly surface of the wooden building according to the embodiment.

本発明を実施するための形態に係る実施例について、図1ないし図5を参照して説明する。なお、図1および図5において、符号10は有孔シート被覆PC版、符号11ないし符号13は実施例に係る有孔シート被覆PC版、符号21は基礎、符号30は木造建築の軸組、符号31は土台、符号32は独立柱(隅柱)、符号33は中間独立柱、符号34は間柱、符号35は梁、である。 Examples of the embodiment for carrying out the present invention will be described with reference to FIGS. 1 to 5. In FIGS. 1 and 5, reference numeral 10 is a perforated sheet-coated PC plate, reference numerals 11 to 13 are perforated sheet-covered PC plates according to Examples, reference numeral 21 is a foundation, and reference numeral 30 is a frame of a wooden building. Reference numeral 31 is a foundation, reference numeral 32 is an independent column (corner column), reference numeral 33 is an intermediate independent column, reference numeral 34 is a stud, and reference numeral 35 is a beam.

まず、有孔シート被覆PC版10について、図1を基に説明する。
有孔シート被覆PC版10は、平板状のPC版であって、有孔シートで少なくとも両面が被覆されている。有孔シートは、図1(a)のエキスパンドメタル、図1(b)の格子目状メタル、図1(c)のパンチングメタルに例示されるような入手が容易な貫通孔のあるシートが適していて、材料は難燃性で引張強度のあるステンレススチール若しくは炭素繊維若しくはガラス繊維若しくは高分子プラスチックである。
First, the perforated sheet-coated PC plate 10 will be described with reference to FIG.
The perforated sheet-coated PC plate 10 is a flat plate-shaped PC plate, and at least both sides are coated with the perforated sheet. As the perforated sheet, a sheet having through holes that is easily available as exemplified by the expanded metal of FIG. 1 (a), the lattice-shaped metal of FIG. 1 (b), and the punching metal of FIG. 1 (c) is suitable. The material is flame-retardant and tensile-strength stainless steel, carbon fiber, glass fiber, or polymer plastic.

有孔シート被覆PC版10は平板であって、実施例では壁として使用していて、その幅(W)は775mm、高さ(H)は3,200mm、厚さ(D)は75mmである。また、図1では、有孔シート被覆PC版10の長さ方向の小口も有孔シートで被覆されているが、有孔シート被覆PC版10を製作するためにコンクリートを打設する場合には必要に応じて打設に必要な厚さ部分の箇所の被覆を取り外すことができる。 The perforated sheet-coated PC plate 10 is a flat plate, which is used as a wall in the examples, and has a width (W) of 775 mm, a height (H) of 3,200 mm, and a thickness (D) of 75 mm. .. Further, in FIG. 1, the edge in the length direction of the perforated sheet-coated PC plate 10 is also covered with the perforated sheet, but when concrete is cast to manufacture the perforated sheet-coated PC plate 10. If necessary, the coating of the thick portion required for casting can be removed.

つぎに、有孔シート被覆PC版10を使用した木造建物の構築工法を図2ないし図5を基に説明する。 Next, a method for constructing a wooden building using the perforated sheet-covered PC plate 10 will be described with reference to FIGS. 2 to 5.

実施例では、有孔シート被覆PC版10は木造住宅建築に耐震壁に準じた役割をもって使用されている。この木造住宅建築は平面的にはX方向(図2参照)に長い長方形状を呈する2階建ての建物で、その四隅にはそれぞれ独立柱32が配置され、X方向の中間部には中間独立柱33が立設されている。そして、図2にあるように、1階の四隅の独立柱24に対して直交する二方向(X方向およびY方向)に有孔シート被覆PC版10が配設され、さらに、中間独立柱33に対して直交する三方向(X方向、X方向およびY方向)に有孔シート被覆PC版10が設置されている。 In the embodiment, the perforated sheet-covered PC version 10 is used in a wooden house building with a role similar to that of a shear wall. This wooden house building is a two-story building that has a long rectangular shape in the X direction (see Fig. 2) in plan, and independent pillars 32 are arranged at the four corners of the building, and the middle part in the X direction is intermediate independent. Pillar 33 is erected. Then, as shown in FIG. 2, the perforated sheet-covered PC plate 10 is arranged in two directions (X direction and Y direction) orthogonal to the independent pillars 24 at the four corners of the first floor, and further, the intermediate independent pillars 33. The perforated sheet-coated PC plate 10 is installed in three directions (X direction, X direction, and Y direction) orthogonal to each other.

有孔シート被覆PC版10は基礎21に埋入されていて、基礎21および有孔シート被覆PC版10は一体となっている。そして、埋入の深さは600mmであるので、有孔シート被覆PC版10の基礎21からの高さは、2,600mmとなる。また、有孔シート被覆PC版10は、独立柱32および中間独立柱35に対して、20mm程度の間隙を有することになり、有孔シート被覆PC版10の上端部と架設される梁35との間隙も概ね20mm程度となる。 The perforated sheet-coated PC plate 10 is embedded in the foundation 21, and the foundation 21 and the perforated sheet-coated PC plate 10 are integrated. Since the embedding depth is 600 mm, the height of the perforated sheet-coated PC plate 10 from the foundation 21 is 2,600 mm. Further, the perforated sheet-covered PC plate 10 has a gap of about 20 mm with respect to the independent pillar 32 and the intermediate independent pillar 35, and the beam 35 erected with the upper end portion of the perforated sheet-coated PC plate 10 The gap between the two is also about 20 mm.

有孔シート被覆PC版10の基礎21に対する埋入方法としては、周知技術が適用できる。例えば、
(1)基礎21の設置該当個所に予めPC版挿入穴を凹設しておき、木造建物の軸組時に有孔シート被覆PC版10も所定位置に建込み、軸組みに合わせて建込位置の調整をし、有孔シート被覆PC版10とPC版挿入穴の隙間に、無収縮モルタルを流し込んで固定する。
(2)有孔シート被覆PC版10を正確に所定位置に建込んで懸吊固定し、その後に基礎21のコンクリート打設をする。そして、基礎型枠解体後に木造建物の軸組みをする。
方法があるが、(2)の埋入方法は有孔シート被覆PC版10の位置の微調整が難しい。
A well-known technique can be applied as an embedding method for the foundation 21 of the perforated sheet-coated PC plate 10. For example
(1) Installation of the foundation 21 A PC plate insertion hole is recessed in advance at the relevant location, and the perforated sheet-covered PC plate 10 is also installed at a predetermined position when the wooden building is framed, and the building position is matched to the frame. Is adjusted, and a non-shrink mortar is poured into the gap between the perforated sheet-coated PC plate 10 and the PC plate insertion hole to fix it.
(2) The perforated sheet-covered PC plate 10 is erected at an accurate position and suspended and fixed, and then the foundation 21 is placed with concrete. Then, after dismantling the foundation formwork, the frame of the wooden building is assembled.
There is a method, but in the embedding method of (2), it is difficult to finely adjust the position of the perforated sheet-coated PC plate 10.

有孔シート被覆PC版10と独立柱32および中間独立柱33、さらには間柱34および上部に架設される梁35との間には20mm程度の間隙を有していて、間柱34、34間は横架材で連結されて木造建築の軸組30が形成されている。そして、当該間隙部分にはゴム等の緩衝材37が挿着されて、木造建物の構築工法の主要部が形成される。 There is a gap of about 20 mm between the perforated sheet-coated PC plate 10 and the independent column 32 and the intermediate independent column 33, and further between the stud 34 and the beam 35 erected above, and the space between the studs 34 and 34 is about 20 mm. The frame 30 of a wooden building is formed by being connected by a horizontal member. Then, a cushioning material 37 such as rubber is inserted into the gap portion to form the main part of the construction method of the wooden building.

ここで、木造建物の構築工法の作用について説明する。地震による揺れは基礎21とともに、剛接合となっている有孔シート被覆PC版10も同調して揺れる。一方、木造建物の主要部となる木造建築の軸組30は有孔シート被覆PC版みとは緩衝材を介して緩やかに接触しているため、有孔シート被覆PC版10の揺れと同程度の揺れとなり、木造建築の軸組30の仕口等に金物を使用していても、その変形をある程度許容するものの木造建築の軸組30の倒壊に至ることなく、木造建物の損傷を免れることができる。 Here, the operation of the construction method of a wooden building will be described. The shaking caused by the earthquake sways in synchronization with the foundation 21 and the perforated sheet-coated PC plate 10 which is a rigid joint. On the other hand, since the frame 30 of the wooden building, which is the main part of the wooden building, is in gentle contact with the perforated sheet-coated PC plate only through the buffer material, it is about the same as the shaking of the perforated sheet-coated PC plate 10. Even if hardware is used for the joints of the frame 30 of the wooden building, the deformation of the frame 30 is allowed to some extent, but the frame 30 of the wooden building does not collapse and the damage of the wooden building is avoided. Can be done.

10 有孔シート被覆PC版
11〜13 実施例に係る有孔シート被覆PC版
21 基礎
30 木造建築の軸組
31 土台
32 独立柱(隅柱)
33 中間独立柱
34 間柱
35 梁
10 Perforated sheet-covered PC version 11 to 13 Perforated sheet-coated PC version according to the examples 21 Foundation 30 Wooden building framework 31 Base 32 Independent columns (corner columns)
33 Intermediate independent columns 34 Studs 35 Beams

Claims (4)

製作時のコンクリート余剰水を排出する多数の透水孔が縦横に貫設され製作後にコンクリート部材として使用されるときには、該コンクリート部材に作用する引張応力を鉄筋に代わって負担する有孔シートが両面を被覆している矩形の有孔シート被覆PC版が、
木造建物の四隅に位置する独立柱を挟んで互いに直交する二方向に、該独立柱とは緩衝材が介挿される隙間を有して配置され、
さらに前記独立柱の中間に中間独立柱を有する場合には、前記有孔シート被覆PC版は該中間独立柱を挟んで平行な方向およびそれらに直交する方向に、該中間独立柱とは緩衝材が介挿される隙間を有して配置され、
前記有孔シート被覆PC版の下端部は前記木造建物の基礎に埋設された固定端であって、上端部は該木造建物の梁または桁まで延伸し該梁または桁とは非接触の自由端である、ことを特徴とする木造建物の構築工法。
When a large number of water-permeable holes for discharging excess concrete water during production are pierced vertically and horizontally and used as a concrete member after production, a perforated sheet that bears the tensile stress acting on the concrete member instead of the reinforcing bar covers both sides. The rectangular perforated sheet-covered PC plate that covers it
The independent pillars located at the four corners of the wooden building are arranged in two directions orthogonal to each other with the independent pillars interposed therebetween with a gap through which the cushioning material is inserted.
Further, when the intermediate independent column is provided in the middle of the independent column, the perforated sheet-coated PC plate is a cushioning material in a direction parallel to the intermediate independent column and in a direction orthogonal to the intermediate independent column. Is arranged with a gap to be inserted,
The lower end of the perforated sheet-coated PC plate is a fixed end embedded in the foundation of the wooden building, and the upper end is a free end extending to the beam or girder of the wooden building and not in contact with the beam or girder. A method of constructing a wooden building, which is characterized by being.
前記有孔シートはステンレススチール製若しくは難燃性の炭素繊維製若しくは難燃性のガラス繊維製若しくは難燃性の高分子プラスチック製の網目状のメッシュシートまたは平板に孔を打ち抜いたパンチングシートである、ことを特徴とする請求項1に記載の木造建物の構築工法。 The perforated sheet is a mesh sheet made of stainless steel, flame-retardant carbon fiber, flame-retardant glass fiber, flame-retardant polymer plastic, or a punching sheet with holes punched in a flat plate. The method for constructing a wooden building according to claim 1 , wherein the method is characterized by the above. 前記木造建物に配設された互いに向き合う前記有孔シート被覆PC版の側面には間柱が該有孔シート被覆PC版とは隙間を有して添設されて該木造建物の軸組みが形成され、該隙間には緩衝材が介挿される、ことを特徴とする請求項1または請求項2に記載の木造建物の構築工法。 A stud is attached to the side surface of the perforated sheet-covered PC slab arranged in the wooden building so as to face each other with a gap from the perforated sheet-covered PC slab to form a frame of the wooden building. The method for constructing a wooden building according to claim 1 or 2, wherein a cushioning material is inserted in the gap. 前記有孔シート被覆PC版は薄肉であってその厚さは略100mm以下である、ことを特徴とする請求項1ないし請求項3のいずれかに記載の木造建物の構築工法。 The method for constructing a wooden building according to any one of claims 1 to 3, wherein the perforated sheet-coated PC plate is thin and has a thickness of about 100 mm or less.
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