JP4932261B2 - Column and foundation joining device - Google Patents

Description

本発明は、木造建物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 and foundation joining apparatus applied to a wooden building.

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.

基板の上下両面に互いに同軸上にして上下の接合杆を突設して接合金具を構成し、土台に設けた凹陥部に縦穴を設け、該縦穴に前記下接合杆を嵌挿して前記凹陥部に係合した前記基板を、一対の平板状の座金部をコの字の連結枠で接続して構成した座金枠の、前記基板上に載置した座金部と共に、前記土台を載置した基礎コンクリート側から前記土台を貫通させたアンカーボルトとこれに螺合したナットによって前記土台に締付け、下端面に設けた係合溝に前記ナットを係合して前記基板上に立設した柱と、該柱に前記連結枠の水平部片を通じて嵌挿した前記上接合杆を固定杆で互いに止着した、構成とするのである。 The upper and lower surfaces of the substrate are coaxial with each other so that upper and lower joining rods project from each other to form a joint fitting, and a vertical hole is provided in the concave portion provided in the base, and the lower joint rod is inserted into the vertical hole to thereby form the concave portion. The base on which the base is placed together with the washer portion placed on the substrate, the washer frame formed by connecting the base plate engaged with the pair of flat plate washer portions with a U-shaped connecting frame. and a nut screwed on the anchor bolt and which was passed through the base from the concrete side fastened to the base, standing on the substrate engaging said nut engaging groove provided at the lower surface pillars, The upper joining rods inserted into the pillars through the horizontal pieces of the connecting frame are fixed to each other with a fixing rod.

図面は、本発明に係る柱と土台の接合装置の実施例を示し、図１は実施例の一部欠截正面図、図２は図１のｂ−ｂ線断面図、図３は柱を省略して示した平面図である。 Drawing shows the Example of the joining apparatus of the pillar and foundation which concerns on this invention, FIG. 1 is a partial missing front view of an Example, FIG. 2 is bb sectional drawing of FIG. 1 , FIG. It is the top view shown abbreviate | omitting.

本発明は接合金具Ａを用いて基礎コンクリートＣ上に載置した土台Ｂと該土台Ｂ上に立設した柱Ｐを接合して構成する。   In the present invention, a base B placed on the foundation concrete C and a column P standing on the base B are joined by using a joint metal A.

接合金具Ａは、平面視正方形状の基板１の上下両面の中央に互いに同軸上にして上下の接合杆２，３を突設して構成し、基板１には前記接合杆２，３を介して一対の透孔４，４を前記土台Ｂの長手方向に沿う中央にして設け、上接合杆２に上下の関係においては互いに９０度に位置をずらせた第二透孔５，５，５を設けたもので、実施例の接合金具Ａは基板１と成る平面視方形状の金属板の中央に通し孔を設け、該通し孔に上下の接合杆３，４を構成する丸い金属管を嵌挿して組合わせ、該金属管と前記金属板を互いに熔着して形成したものであるが、実施例の形成手段を採ることは必ずしも必要としない。   The joining bracket A is configured by projecting upper and lower joining rods 2 and 3 coaxially with each other in the center of the upper and lower surfaces of the substrate 1 having a square shape in plan view, and the substrate 1 via the joining rods 2 and 3. A pair of through holes 4, 4 are provided at the center along the longitudinal direction of the base B, and the second through holes 5, 5, 5 are shifted from each other by 90 degrees with respect to the upper joint rod 2 in the vertical direction. In the joint metal fitting A of the embodiment, a through hole is provided in the center of a metal plate having a plan view shape to be the substrate 1, and round metal tubes constituting upper and lower joint rods 3 and 4 are fitted into the through hole. The metal tube and the metal plate are formed by being inserted and combined and welded to each other, but it is not always necessary to adopt the forming means of the embodiment.

この接合金具Ａの前記基板１と一致する形状、大きさにして、基板１の厚さと一致する深さの凹陥部６を前記土台Ｂの上面の適所に設け、該凹陥部６の中央にして土台Ｂに設けた縦穴７に、接合金具Ａの前記下接合杆３を嵌挿する一方、基板１に設けた前記透孔４に基礎コンクリートＣ側から土台Ｂに設けた貫通孔８を貫通させたアンカーボルト９を貫通させるようにして前記基板１を前記凹陥部６に係合せしめ、基板１より突出するアンカーボルト９の先端にナット１０を螺合して接合金具Ａを土台Ｂに締付けてある。   A concave portion 6 having a depth corresponding to the thickness of the substrate 1 is provided at an appropriate position on the upper surface of the base B so as to match the shape and size of the substrate 1 of the joining metal A, and is formed at the center of the concave portion 6. The lower joint rod 3 of the joint metal fitting A is inserted into the vertical hole 7 provided in the base B, while the through hole 8 provided in the base B is passed through the through hole 4 provided in the substrate 1 from the basic concrete C side. The base plate 1 is engaged with the recessed portion 6 so as to pass through the anchor bolt 9, the nut 10 is screwed onto the tip of the anchor bolt 9 protruding from the base plate 1, and the joining bracket A is fastened to the base B. is there.

この土台Ｂに締付けた接合金具Ａの基板１上には、下端面に設けた係合溝１１に前記ナット１０（該ナット１０を螺合したアンカーボルト９の上端部は勿論）を係合するようにして前記柱Ｐを立設し、該柱Ｐと、柱Ｐの軸線上に設けた接合穴１２に嵌挿した接合金具Ａの前記上接合杆２を、柱Ｐに設けた貫通孔１３と上接合杆２側の前記第二透孔５に固定杆１４を嵌挿するようにして互いに止着して実施例装置としたものである。   On the base plate 1 of the fitting A fastened to the base B, the nut 10 (not to mention the upper end portion of the anchor bolt 9 into which the nut 10 is screwed) is engaged with an engagement groove 11 provided on the lower end surface. In this way, the column P is erected, and the column P and the through-hole 13 provided in the column P are the upper joint rods 2 of the joint metal fitting A fitted into the joint hole 12 provided on the axis of the column P. The fixing rod 14 is fitted into the second through hole 5 on the side of the upper joint rod 2 and fastened to each other to form an embodiment device.

図中、１６は座金枠で、座金枠１６は、一対の平板状の座金部１６ａ，１６ａをコの字形の連結枠１６ｂで接続して構成する。この座金枠１６は、座金部１６ａを、ナット１０と凹陥部６に係合した接合した接合金具Ａの基板１との間に配し、ナット１０の緩み止めとする一方、連結枠１６ｂの水平部片１６ｂ´の透孔１７に固定杆１４で柱Ｐに固着した前記上接合杆２を貫通させて組合わせてあることにより柱Ｐ側から上接合杆２に負荷される荷重が基板１との接続部のみに集中することなく分散され、接合強度を増大させることができる。 In the figure, 16 is a washer frame, and the washer frame 16 is formed by connecting a pair of flat plate washer portions 16a and 16a with a U-shaped connecting frame 16b . In this washer frame 16, the washer portion 16a is disposed between the nut 10 and the base plate 1 of the joined joint A engaged with the recessed portion 6 to prevent the nut 10 from being loosened, while the connecting frame 16b is horizontal. Since the upper joint rod 2 fixed to the column P with the fixing rod 14 passes through the through-hole 17 of the piece 16b ′, the load applied to the upper junction rod 2 from the column P side is combined with the substrate 1. It can be dispersed without concentrating only on the connecting portion of the film, and the bonding strength can be increased.

一部欠截正面図。Partially missing front view. 図１のａ−ａ線断面図。FIG. 2 is a sectional view taken along line aa in FIG. 1. 柱を省略して示した平面図。The top view which abbreviate | omitted the pillar and showed.

符号の説明Explanation of symbols

１ 基板
２ 上接合杆
３ 下接合杆
６ 凹陥部
７ 縦穴
９ アンカーボルト
１０ ナット
１１ 係合溝
１４ 固定杆 DESCRIPTION OF SYMBOLS 1 Substrate 2 Upper joining rod 3 Lower joining rod 6 Recessed portion 7 Vertical hole 9 Anchor bolt 10 Nut 11 Engaging groove 14 Fixing rod

Claims (1)

基板の上下両面に互いに同軸上にして上下の接合杆を突設して接合金具を構成し、土台に設けた凹陥部に縦穴を設け、該縦穴に前記下接合杆を嵌挿して前記凹陥部に係合した前記基板を、一対の平板状の座金部をコの字の連結枠で接続して構成した座金枠の、前記基板上に載置した座金部と共に、前記土台を載置した基礎コンクリート側から前記土台を貫通させたアンカーボルトとこれに螺合したナットによって前記土台に締付け、下端面に設けた係合溝に前記ナットを係合して前記基板上に立設した柱と、該柱に前記連結枠の水平部片を通じて嵌挿した前記上接合杆を固定杆で互いに止着した、柱と土台の接合装置。 The upper and lower surfaces of the substrate are coaxial with each other so that upper and lower joining rods project from each other to form a joint fitting, and a vertical hole is provided in the concave portion provided in the base, and the lower joint rod is inserted into the vertical hole to thereby form the concave portion. The base on which the base is placed together with the washer portion placed on the substrate, the washer frame formed by connecting the base plate engaged with the pair of flat plate washer portions with a U-shaped connecting frame. and a nut screwed on the anchor bolt and which was passed through the base from the concrete side fastened to the base, standing on the substrate engaging said nut engaging groove provided at the lower surface pillars, An apparatus for joining a pillar and a base, in which the upper joining rods inserted into the pillars through the horizontal pieces of the connection frame are fixed to each other with a fixing rod.

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