JP4837393B2 - Column and foundation joining device - Google Patents

Description

本発明は、木造建物に適用する、すなわち、木製の柱と土台の接合に適用する、柱と土台の接合装置に関するものである。   The present invention relates to a column / base joining apparatus that is applied to a wooden building, that is, a wood pillar / base joint.

基礎コンクリートに立設したアンカーボルトを、前記基礎コンクリート上に載置した土台と該土台上に重ね合わせた接合板を貫通させ、接合板より突出する該アンカーボルトの先端にナットを螺合して前記土台と接合板を前記基礎コンクリートに締め付けると共に、前記接合板を柱の下面に設けたスリットに嵌挿し、該接合板と前記柱を、柱の側面から打ち込んだ止着杆（ドリフトピン）で互いに接続した構造のものがある（例えば、特許文献１）。   Anchor bolts erected on the foundation concrete are passed through a base placed on the foundation concrete and a joining plate superimposed on the foundation, and a nut is screwed onto the tip of the anchor bolt protruding from the joining plate. The base plate and the joining plate are fastened to the foundation concrete, and the joining plate is inserted into a slit provided on the lower surface of the column, and the joining plate and the column are fixed by a fastening pin (drift pin) driven from the side surface of the column. There exists a thing of the structure connected mutually (for example, patent document 1).

特開平８−１８４０６２号公報JP-A-8-184062

前記従来構造のものは、柱の軸線位置に配したアンカーボルトを利用して柱と土台を基礎コンクリートに接合するという意味合いでは、強度的に優れた接合装置を構成するものであるが、柱に負荷される外力は、結局のところ、アンカーボルトに集中する構成を採るため、耐久的に問題がある。   The above-mentioned conventional structure constitutes a joining device excellent in strength in the sense that the pillar and the base are joined to the foundation concrete by using anchor bolts arranged at the axis position of the pillar. After all, the external force to be loaded has a problem in terms of durability because it is configured to concentrate on the anchor bolt.

本発明は、従来例の斯様な欠点に着目し、柱に対する外力の負荷がアンカーボルトに集中することなく、総じて耐久的な接合装置を提供することを目的として創案したものである。   This invention pays attention to such a fault of a prior art example, and it was created for the purpose of providing a generally durable joining apparatus without the load of the external force with respect to a pillar concentrating on an anchor bolt.

土台に縦設した断面方形状の組付け穴に、基部片と接続部片とで成る、断面コの字形の接合基枠を嵌合し、該接合基枠の前記基部片と前記組付け穴の底壁部に、前記土台を載置した基礎コンクリートに立設したアンカーボルトを挿通させ、基部片より突出する該アンカーボルトの先端にナットを螺合すると共に、基部片の両側に側部片を相対設した方形枠状のほぞ枠の、柱に止着して柱下面より突出させた前記側部片を前記接合基枠の前記接続部片の内側に嵌挿し、該ほぞ枠と前記接続部片を前記土台に嵌挿した接続杆で互いに止着した、構成とするのである。 A joint base frame having a U-shaped cross section composed of a base piece and a connection piece is fitted into a square cross-section assembly hole provided vertically on the base, and the base piece and the assembly hole of the joint base frame are fitted. An anchor bolt erected on the foundation concrete on which the foundation is placed is inserted into the bottom wall of the base, and a nut is screwed onto the tip of the anchor bolt protruding from the base piece, and side pieces on both sides of the base piece Of the tenon frame of the rectangular frame shape that is relatively disposed, the side piece that is fixed to the column and protruded from the lower surface of the column is fitted inside the connection piece of the joining base frame, and the tenon frame and the connection The pieces are fixed to each other with connecting rods inserted into the base.

本発明によれば、柱の直下に存するアンカーボルトを利用して柱と土台を、基礎コンクリートに締付けて接合する構成を採るから、極めて強固な柱と土台の接合装置を得られる。   According to the present invention, since the column and the base are fastened and joined to the foundation concrete by using the anchor bolts directly below the column, a very strong column and foundation joining apparatus can be obtained.

図面は、本発明に係る、柱と土台の接合装置の一実施例を示し、図１は断面図、図２はほぞ枠の平面図、図３は土台の一部斜視図である。   The drawings show one embodiment of a column / base joining apparatus according to the present invention, FIG. 1 is a sectional view, FIG. 2 is a plan view of a tenon frame, and FIG. 3 is a partial perspective view of the base.

本発明は、金属製の接合基枠１と金属製の接合金具２を用いて柱Ｐと土台Ｂを接合して構成するもので、接合基枠１は、中央に透孔３を設けた方形状の基部片４の一方の相対する両端に接続部片５，５を、他の一方の相対する両端に補強部片５´，５´をそれぞれ相対して立設して構成した断面コ形体で成り、前記接続部片５，５には、接続部片５，５間において互いに一致する上下一対の第二透孔６，６を設けたものである。   In the present invention, a pillar P and a base B are joined by using a metal joining base frame 1 and a metal joining fitting 2, and the joining base frame 1 has a through hole 3 in the center. A cross-sectional shape formed by connecting and connecting connecting pieces 5 and 5 at one opposite ends of the base piece 4 and reinforcing pieces 5 'and 5' at the other opposite ends, respectively. The connection part pieces 5 and 5 are provided with a pair of upper and lower second through holes 6 and 6 that coincide with each other between the connection part pieces 5 and 5.

接合金具２は、方形平板状の基部片７ａの両端に側部片７ｂ，７ｂを相対して吊設したほぞ枠７の前記基部片７ａ上に等間隔を存して四方に放射状に配した４枚の部片８ａ，８ａ，８ａ，８ａで成る嵌挿枠８を立設して構成したものである。   The joining metal fittings 2 are radially arranged in four directions at equal intervals on the base piece 7a of the tenon frame 7 in which the side pieces 7b and 7b are suspended relative to both ends of the rectangular flat base piece 7a. The fitting frame 8 is composed of four pieces 8a, 8a, 8a, 8a.

しかして、柱Ｐの下面を４分割するようにして設けた十字状のスリット１３に嵌挿枠８を嵌挿し、柱Ｐ側の通し孔１４と嵌挿枠８の部片８ａに設けた透孔１５に固定杆１６を嵌挿し、嵌挿枠８において柱Ｐに止着して、柱Ｐ下面よりほぞ枠７を突出させるようにして接合金具２を柱Ｐに組付けるのである（概し、工場で行われる）。   Thus, the insertion frame 8 is inserted into the cross-shaped slit 13 provided so as to divide the lower surface of the column P into four, and the through hole 14 on the column P side and the transparent portion provided in the piece 8a of the insertion frame 8 are provided. The fixing rod 16 is inserted into the hole 15, fixed to the column P in the insertion frame 8, and the joining bracket 2 is assembled to the column P so that the tenon frame 7 protrudes from the lower surface of the column P (an outline). Done in the factory).

そして、前記土台Ｂに縦設した断面方形状の組付け穴９の底壁部Ｂａの中央に設けた挿通孔１０に基礎コンクリートＣに立設したアンカーボルトｂの先端を貫通させるようにして前記土台Ｂを基礎コンクリートＣ上に載置し、挿通孔１０を通じて前記組付け穴９内に突出させた前記ボルトｂ先端を透孔３に挿通させるようにして接合基枠１を組付け穴９に嵌合して（このとき、第二透孔６，６が土台Ｂの組付け穴９の側壁部Ｂｂに設けた上下一対の第二挿通孔１０´，１０´に一致する向きにして、）該基枠１の基部片４を土台Ｂの前記底壁部Ｂａ上に載置し、基部片４より突出するボルトｂ先端に座金１１，１１´を介してナット１２を螺合して土台Ｂを基礎コンクリートＣに締付ける。   The tip of the anchor bolt b standing on the foundation concrete C is penetrated through the insertion hole 10 provided in the center of the bottom wall portion Ba of the assembly hole 9 having a rectangular cross section provided vertically on the base B. The base B is placed on the foundation concrete C, and the joint base frame 1 is inserted into the assembly hole 9 so that the tip of the bolt b projecting into the assembly hole 9 through the insertion hole 10 is inserted into the through hole 3. (At this time, the second through holes 6 and 6 are oriented so as to coincide with the pair of upper and lower second insertion holes 10 'and 10' provided in the side wall Bb of the mounting hole 9 of the base B) A base piece 4 of the base frame 1 is placed on the bottom wall portion Ba of the base B, and a nut 12 is screwed onto a tip of a bolt b projecting from the base piece 4 via a washer 11, 11 ′, thereby mounting the base B. Tighten to foundation concrete C.

そして、柱Ｐ下面に突設したほぞ枠７を該ほぞ枠７に設けた透孔１８を土台Ｂの組付け穴９内に収めた接合基枠１の接合部片５に設けた透孔６に一致させるようにして組付け穴９に嵌合して柱Ｐを土台Ｂ上に起立させ、土台Ｂに設けた第二挿通孔１０´を通じて接続杆１９を前記各孔６，１８に嵌挿することにより柱Ｐと土台Ｂは互いに接合され、実施例装置を得ることができるのである。   The tenon frame 7 projecting from the lower surface of the column P is provided with a through hole 6 provided in the joining piece 5 of the joining base frame 1 in which the through hole 18 provided in the tenon frame 7 is accommodated in the assembly hole 9 of the base B. The column P is erected on the base B by fitting it in the assembly hole 9 so as to match, and the connecting rod 19 is inserted into the holes 6 and 18 through the second insertion holes 10 ′ provided in the base B. By doing so, the pillar P and the base B are joined to each other, and the embodiment device can be obtained.

断面図。Sectional drawing. ほぞ枠の平面図。The top view of a mortise frame. 土台の一部斜視図。The partial perspective view of a foundation.

符号の説明Explanation of symbols

１ 接合基枠
４ 基部片
５ 接続部片
７ ほぞ枠
９ 組付け穴
１２ ナット
１９ 接続杆
Ｂ 土台
ｂ アンカーボルト
Ｂａ 底壁部
Ｃ 基礎コンクリート
Ｐ 柱 1 Joining base frame 4 Base piece 5 Connection part 7 Tenon frame 9 Assembly hole 12 Nut 19 Connection rod B Base b Anchor bolt Ba Bottom wall part C Base concrete P Column

Claims (1)

土台に縦設した断面方形状の組付け穴に、基部片と接続部片とで成る、断面コの字形の接合基枠を嵌合し、該接合基枠の前記基部片と前記組付け穴の底壁部に、前記土台を載置した基礎コンクリートに立設したアンカーボルトを挿通させ、基部片より突出する該アンカーボルトの先端にナットを螺合すると共に、基部片の両側に側部片を相対設した方形枠状のほぞ枠の、柱に止着して柱下面より突出させた前記側部片を前記接合基枠の前記接続部片の内側に嵌挿し、該ほぞ枠と前記接続部片を前記土台に嵌挿した接続杆で互いに止着した、柱と土台の接合装置。 A joint base frame having a U-shaped cross section composed of a base piece and a connection piece is fitted into a square cross-section assembly hole provided vertically on the base, and the base piece and the assembly hole of the joint base frame are fitted. An anchor bolt erected on the foundation concrete on which the foundation is placed is inserted into the bottom wall of the base, and a nut is screwed onto the tip of the anchor bolt protruding from the base piece, and side pieces on both sides of the base piece Of the tenon frame of the rectangular frame shape that is relatively disposed, the side piece that is fixed to the column and protruded from the lower surface of the column is fitted inside the connection piece of the joining base frame, and the tenon frame and the connection A column / base joining apparatus in which the pieces are fastened to each other by connecting rods inserted into the base.

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