JP2012184557A - Wood-based angle arch roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a roof structure capable of reducing deadweight and opposing external force in order to obtain a wide space by a framework beam which is not formed only by a single structure material of a conventional product but is formed by attaching a split bar (the bar for which a square bar is sawn into several bars) and plywood or the like with nails or the like.SOLUTION: A wood-based angle rigid frame is formed by a framework beam formed by attaching plywood cut into a required dimension to a framework for which split bars 2 of a required dimension are combined, and combining them. It is mounted on top ends of a pair of columns 6 for which a column 6 is cut into a required length dimension and installed at a prescribed position and is reinforced by a metallic material to construct a roof structure. When an angle arch is attained, an attic space is effectively used, and the bearing force of the framework beam can be strengthened as well without substantially increasing deadweight when a large beam depth is taken.

Description

本発明は木質枠組み梁で造る木質系山形アーチよる屋根構造に関するものである。         The present invention relates to a roof structure made of a wooden mountain arch made of wooden frame beams.

従来倉庫等のような広い内部空間を得るための建築工法に水平ラーメン、トラス構造（例えば、特開文献１参照）
また、木構造部材を金具で剛接合されて形成された山形フレームによる工法がある。（例えば、特開文献２参照） Horizontal ramen and truss structure for building method to obtain a wide internal space like a conventional warehouse
In addition, there is a method using a mountain-shaped frame formed by rigidly joining wooden structural members with metal fittings. (For example, refer to Japanese Patent Laid-Open Publication No. HEI 11-11683)

特許文献１の図１によると、図面はトラスの正面図で、屋根構造は主に横架材の陸梁と斜材の合掌等で構成されトラスの支持部は割材でされている。       According to FIG. 1 of Patent Document 1, the drawing is a front view of the truss, the roof structure is mainly composed of horizontal beams and slanted materials, and the support portion of the truss is split.

特許文献２の図１によると、図は山形フレームの正面図で、屋根構造は主に斜めの合掌構造材を棟部分で剛接合して支持部は柱の天端に載せた桁材でされている。       According to FIG. 1 of Patent Document 2, the figure is a front view of a mountain-shaped frame, and the roof structure is mainly made of a girder that is rigidly joined at a ridge portion with a slanted jointed structure material and is placed on the top end of the column. ing.

特開２０１１−０２１４４４号公報JP 2011-021444 A 特開平１０−２９２５４６号公報Japanese Patent Laid-Open No. 10-292546

無駄の少ない内部空間を構築するには、小屋裏を有効に使用することが経済的であるが、以上述べた特許文献１の工法では横架材いわゆる陸梁が邪魔になった。           In order to construct an interior space with little waste, it is economical to use the back of the shed effectively. However, in the construction method of Patent Document 1 described above, a so-called land beam is a hindrance.

特許文献２に関しては無駄の少ない内部空間を構築することはできるが、広い内部空間を造るには、長尺の山形フレームの構造材を必要とし、部材断面もそれに伴い大きくなり、自重も嵩み、コストも割高になっていく。       With regard to Patent Document 2, it is possible to construct an interior space with little waste, but in order to construct a wide interior space, a long mountain-shaped frame structural material is required, and the member cross section increases accordingly, and its own weight increases. The cost will be higher.

本発明は、このような従来からある製品単一の構造材のみで造るのではなく、割材（角材を幾つかに挽き割った材を言う）と合板等を釘等で接着し造る枠組み梁により、広い空間を得るべく自重を軽く、外力に抵抗できる屋根構造を造ることを目的とする。       The present invention is not made of such a conventional single product structural material, but is a frame beam made by bonding a split material (referred to as a material obtained by cutting a square material into several pieces) and a plywood or the like with a nail or the like. Therefore, the purpose is to make a roof structure that can lighten its own weight and resist external force to obtain a wide space.

そのために、本発明の木質系山形アーチ屋根構造は、広い空間を得るために造る長尺スパン材に掛かる外力に抵抗できる枠組み梁の必要梁成を取るため１対の主要な割材、つまり上弦材、下弦材の間隔を空けて並べ、その材の位置、間隔を保持すべく、梁成長に切断した材を上弦材下弦材との間に一定の間隔で並べて釘等で接着補強しその全体を合板で補強し造る枠組み梁二組を屋根棟部において合掌し、棟部を金物、合板等で補強してピン接合の木質系山形アーチ屋根構造を造り、その木質系山形アーチ屋根構造上に水平の枠組み梁の両端部をそれぞれ釘金物等で接着し、すれば三接点がピン接合となり、木質系山形アーチ屋根構造は変形しない状態になり課題を解決できるため木質系山形アーチ屋根構造を提供する。       For this purpose, the wooden mountain arch roof structure of the present invention has a pair of main splitting materials, ie, upper chords, in order to obtain the necessary beam of the frame beam that can resist the external force applied to the long span material that is made to obtain a wide space. In order to maintain the position and spacing of the material and the lower chord material, arrange the material that has been cut for beam growth at a fixed interval between the upper chord material and the lower chord material, and bond and reinforce it with nails etc. Two pairs of frame beams that are reinforced with plywood are joined at the roof ridge, and the ridge is reinforced with hardware, plywood, etc. to create a pin-jointed wooden mountain arch roof structure on the wooden mountain arch roof structure. If both ends of the horizontal frame beam are glued together with nails, etc., the three contact points become pin joints, and the wooden mountain arch roof structure is not deformed and the problem can be solved, providing a wooden mountain arch roof structure To do.

木質系山形アーチ屋根構造は殆ど割材と構造用合板で出来上がり、割材は間伐材を利用でき、長尺材のコストも割安で且つ切れ端材まで利用でき、廃りが少なく、また支柱を可能な必要長さまで短くすることもできる為外壁等の仕上げ面積を少なくでき、経済的効果がある。       Wooden mountain arch roof structure is mostly made of split wood and structural plywood, split wood can use thinned wood, the cost of long wood is also cheap and can be used to cut off pieces, less waste, and possible to support pillars Since it can be shortened to the required length, the finished area of the outer wall and the like can be reduced, which is economical.

また、割材と合板で造る枠組み梁の外力に対する強度は、割材の上弦下弦材の平行又は否並行よる並べ方の空き間隔、割材の断面積等で容易く調整でき、また、長尺による自重の増加率は少なく長スパンの枠組み梁ができる。   In addition, the strength against external force of the frame beam made of split wood and plywood can be easily adjusted by adjusting the space between the upper and lower chords of the split wood in parallel or non-parallel, the cross-sectional area of the split wood, etc. The rate of increase is small and long span frame beams can be formed.

また、プレートやアングルで割材を予備的に補強もできるので枠組み梁の安全率も高くなる。     In addition, since the split material can be preliminarily reinforced with plates and angles, the safety factor of the frame beam is also increased.

本発明の木質系山形アーチ屋根構造の正面図である。It is a front view of the wooden type mountain-shaped arch roof structure of this invention. 本発明の木質系山形アーチ屋根構造の裏面である。It is the back surface of the wooden type mountain-shaped arch roof structure of this invention. 枠組み梁の詳細の斜視図Detailed perspective view of frame beam 必要寸法に切断した構造用合板の斜視図。The perspective view of the structural plywood cut | disconnected to the required dimension. 必要寸法に組み立てた枠組み梁の下地の斜視図Perspective view of the foundation of the frame beam assembled to the required dimensions 枠組み梁の斜視図Perspective view of frame beam 枠組み梁棟合わせと補強材の斜視図Perspective view of frame beam building and reinforcement 棟補強の斜視図Perspective view of building reinforcement 枠組み梁加工の斜視図Perspective view of frame beam processing 本発明の木質系山形アーチ屋根構造利用の斜視図The perspective view of the use of the woody mountain arch roof structure of the present invention 山形アーチの図Yamagata arch illustration

以下、本発明の実施の形態を図１〜図１０に基づいて説明する。       Hereinafter, embodiments of the present invention will be described with reference to FIGS.

本発明の木質系山形アーチ屋根構造は対の枠組み梁を合掌し棟部で剛接合して出来上がるから、図５に示すように必要寸法に加工した割材を梯子状に組み図４に示す必要寸法に加工した構造用合板を接着し枠組み梁を造る。       Since the wooden mountain arch roof structure of the present invention is formed by joining the pair of frame beams and rigidly joining them at the ridge part, it is necessary to assemble the split material processed into the required dimensions as shown in FIG. Glue structural plywood that has been processed to dimensions to make a frame beam.

まず枠組み梁の強度の問題を問われると思うが、例えば平成１９年９月１３日、高知県立森林技術センターでの載荷試験による枠組み梁曲げ強度試験の結果報告書一部によると、梁成３００ｍｍ割材杉１０５＊４０、構造用合板１２ｍｍ、ｃｎ６５ｍｍピッチ５０ｍｍ、スパン３５８０ｍｍで最大荷重２６．６ｋＮ、であったが数体からのデータを見ると最初の破壊はすべて構造用合板であった。       First of all, I think that the problem of the strength of the frame beam will be asked. For example, according to a part of the report on the result of the frame beam bending strength test by the loading test at Kochi Prefectural Forest Technology Center on September 13, 2007, The splitting cedar 105 * 40, structural plywood 12mm, cn65mm pitch 50mm, span 3580mm, maximum load 26.6kN, but looking at the data from several bodies, the first failure was all structural plywood.

図１１は山形アーチの力学上の判定図で説明すればＣ−Ａ、Ｃ−Ｂは１対の合成梁で、棟Ｃ点で合掌している。つまり、Ａ，Ｂ，Ｃはピン接合でこの構造体は静定で、ＡＣ，ＣＢの間にＤＥを設置すれば△ＣＤＥは不静定つまり形が変形しないので木質山形アーチ屋根構造となり、構造計算の概算計算値が可能になる。       If FIG. 11 is demonstrated with the determination figure on the dynamics of a Yamagata arch, CA and CB are a pair of composite beams, and they are held at the ridge C point. In other words, A, B, and C are pin joints, and this structure is static. If DE is installed between AC and CB, ΔCDE is not static, that is, its shape does not deform, so it becomes a wooden mountain arch roof structure. Approximate calculation value of calculation is possible.

本発明の構造体は木質で軽量であるからいずれの場所の補強も釘、金物、同質材いずれの材料も安価で手に入り易く、また応力に対する枠組み梁の対応も簡単にできる。       Since the structure of the present invention is woody and lightweight, it is easy to obtain any material for reinforcement at any location, such as nails, hardware, and homogenous materials, and the frame beams can easily cope with stress.

まず、割材２を定尺に加工して、図５の梯子状に造り図１のごとく定尺に加工した構造用合板を釘等で接着し、次に、図７のごとく補強材４，５、ボルト等で補強し、山形アーチの本体を造り、（１）の水平合成梁の両端を山形アーチの本体に釘金物で接着し接着部分は釘、金物等で補強すればこの構造は一体となりそれを定位置にセットしてある柱に載せ金物で補強する。       First, the split material 2 is processed into a regular size, and a structural plywood made into a ladder shape as shown in FIG. 5 and processed into a standard size as shown in FIG. 1 is bonded with a nail or the like. Next, as shown in FIG. 5. Reinforce with bolts to build the main body of the mountain arch. (1) If both ends of the horizontal composite beam are glued to the main body of the mountain arch with nail hardware and the bonded part is reinforced with nail, hardware, etc., this structure is integrated It is placed on a pillar set in place and reinforced with hardware.

１ 構造用合板
２ 割材
４ 補強材
５ 補強材
６ 柱
７ 補強材
８ 母屋
（１） 水平合成梁

1 Structural plywood 2 Split wood 4 Reinforcement material 5 Reinforcement material 6 Pillar 7 Reinforcement material 8 Purlin (1) Horizontal composite beam

Claims (2)

外力に抵抗する主要な割材（角材も可）、１対の上弦材、下弦材を必要長さによる外力に抵抗できるように間隔を空けて平行に、または不並行に並べ、その上弦材下弦材の位置、間隔を保持すべく短く切断した材を上弦材下弦材との間に一定の間隔に並べ釘等ではしご状に取り付けその上に合板を接着して造る枠組み梁二組を屋根棟部において合掌し、金物合板等で補強しできた木質系山形アーチ屋根構造の任意の位置に枠組み梁両端部を木質系山形アーチ構造部に釘、金物等で接着して三接点でのピン接合を造る木質系山形アーチ屋根構造。       Main split material that resists external force (square bar is also acceptable) A pair of upper chord material and lower chord material are arranged in parallel or non-parallel at intervals to resist external force depending on the required length, and the upper chord material lower chord The roof ridge consists of two sets of beam beams, which are made by placing a piece of material that has been cut short in order to maintain the position and spacing of the material at regular intervals between the upper chord material and the lower chord material and attaching them in a ladder shape with a nail, etc. At the desired position of the wooden mountain arch roof structure that has been reinforced with metal plywood etc., the frame beam ends are glued to the wooden mountain arch structure with nails, hardware, etc. A wooden Yamagata arch roof structure that builds. 外力に抵抗する主要な割材をプレート、アングル等で補強した請求項1に記載した木質系山形アーチ屋根構造。


2. The wooden mountain-shaped arch roof structure according to claim 1, wherein a main split material that resists external force is reinforced by a plate, an angle, or the like.