JP5603707B2 - Lattice beam - Google Patents

Lattice beam Download PDF

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JP5603707B2
JP5603707B2 JP2010184537A JP2010184537A JP5603707B2 JP 5603707 B2 JP5603707 B2 JP 5603707B2 JP 2010184537 A JP2010184537 A JP 2010184537A JP 2010184537 A JP2010184537 A JP 2010184537A JP 5603707 B2 JP5603707 B2 JP 5603707B2
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upper chord
fixed
lattice
chord
lattice beam
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歩 三津橋
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Misawa Homes Co Ltd
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Description

本発明は、ラチス梁に関する。 The present invention relates to a lattice beam .

床を支持する床梁として、ラチス梁を使用することがある。このラチス梁の一例として特許文献１に記載のものが知られている。
このラチス梁は、上弦材と、下弦材と、これらの間にジグサグに設けられたラチス材とを備えている。ラチス梁の端部には取付プレートが固定されており、この取付プレートを基礎の上面および側面に当接させた状態でコンクリートビス等によって固定することによって、ラチス梁が基礎に取り付けられている。 A lattice beam is sometimes used as a floor beam to support the floor. As an example of the lattice beam, one described in Patent Document 1 is known.
The lattice beam includes an upper chord member, a lower chord member, and a lattice member provided in a jigsag therebetween. An attachment plate is fixed to the end of the lattice beam, and the lattice beam is attached to the foundation by fixing the attachment plate with a concrete screw or the like in contact with the upper surface and the side surface of the foundation.

特開２００６−２１４２３８号公報JP 2006-214238 A

ところで、ラチス梁の長さ（スパン）を長くすると、当該ラチス梁は撓み易くなるため、例えばラチス材を太くしたり密に配置したりして、機械的強度を高める場合がある。かかる場合、ラチス梁自体の自重が増大するとともに、ラチス梁によって支持される床から当該ラチス梁に大きな力が下向きに作用する。
このラチス梁の端部は基礎等に取り付けられ、この基礎等によって支持されるため、当該ラチス梁の端部にも大きな力が作用して変形等の可能性がある。このため、ラチス梁端部の強度を高くする必要がある。 By the way, if the length (span) of the lattice beam is increased, the lattice beam is likely to be bent. For example, the lattice material may be thickened or densely arranged to increase the mechanical strength. In such a case, the self-weight of the lattice beam itself increases, and a large force acts downward on the lattice beam from the floor supported by the lattice beam.
Since the end portion of the lattice beam is attached to and supported by the foundation or the like, there is a possibility that a large force acts on the end portion of the lattice beam to cause deformation or the like. For this reason, it is necessary to increase the strength of the lattice beam end.

本発明は上記事情に鑑みてなされたもので、ラチス梁端部の強度を高くすることができるラチス梁を提供することを課題としている。   This invention is made | formed in view of the said situation, and makes it the subject to provide the lattice beam which can make the intensity | strength of a lattice beam edge part high.

上記課題を解決するために、請求項１に記載の発明は、例えば図１〜図４に示すように、上弦材２と下弦材３との間にラチス材４がジグザグに設けられてなるラチス梁１であって、
前記上弦材２の端部に、当該上弦材２の長手方向に長尺な補強部材１０が固定されており、
前記上弦材２がその厚さ方向に平行に配置された一対の上弦構成部材５，５で構成され、
前記下弦材３がその厚さ方向に平行に配置された一対の下弦構成部材６，６で構成され、
前記ラチス材４は、平面視において前記上弦構成部材５，５間および前記下弦構成部材６，６間に配置されて、これら上弦構成部材５，５および下弦構成部材６，６に固定され、
前記補強部材１０は、平面視において前記上弦構成部材５，５間に配置されて、当該上弦構成部材５，５に固定されていることを特徴とする。 In order to solve the above problems, the invention according to claim 1 is a lattice in which a lattice material 4 is provided in a zigzag manner between an upper chord material 2 and a lower chord material 3 as shown in FIGS. Beam 1,
A long reinforcing member 10 is fixed to the end portion of the upper chord material 2 in the longitudinal direction of the upper chord material 2 ,
The upper chord material 2 is composed of a pair of upper chord constituting members 5 and 5 arranged in parallel to the thickness direction thereof,
The lower chord material 3 is composed of a pair of lower chord constituting members 6 and 6 arranged in parallel to the thickness direction thereof,
The lattice material 4 is disposed between the upper chord components 5 and 5 and the lower chord components 6 and 6 in a plan view, and is fixed to the upper chord components 5 and 5 and the lower chord components 6 and 6,
The reinforcing member 10 is disposed between the upper chord constituting members 5 and 5 in a plan view and is fixed to the upper chord constituting members 5 and 5 .

請求項１に記載の発明によれば、上弦材２の端部に、上弦材２の長手方向に長尺な補強部材１０が固定されているので、ラチス梁１の端部の強度を高くすることができる。
また、ラチス材４が、平面視において上弦構成部材５，５間および下弦構成部材６，６間に配置されて、これら上弦構成部材５，５および下弦構成部材６，６に固定されているので、ラチス材４を上弦構成部材５，５および下弦構成部材６，６によって挟み付けた状態で強固に固定できる。
また、補強部材１０が、平面視において上弦構成部材５，５間に配置されて、当該上弦構成部材５，５に固定されているので、補強部材１０を上弦構成部材５，５によって挟み付けた状態で強固に固定できる。
さらに、ラチス材４と補強部材１０とが平面視において一直線上に配置されるので、ラチス梁１としての強度のバランスが優れたものとなる。 According to the first aspect of the present invention, since the reinforcing member 10 that is long in the longitudinal direction of the upper chord member 2 is fixed to the end portion of the upper chord member 2, the strength of the end portion of the lattice beam 1 is increased. be able to.
Further, the lattice material 4 is disposed between the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6 in a plan view, and is fixed to the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6. The lattice material 4 can be firmly fixed in a state where the lattice material 4 is sandwiched between the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6.
Further, since the reinforcing member 10 is disposed between the upper chord constituting members 5 and 5 and is fixed to the upper chord constituting members 5 and 5 in plan view, the reinforcing member 10 is sandwiched between the upper chord constituting members 5 and 5. Can be firmly fixed in the state.
Furthermore, since the lattice material 4 and the reinforcing member 10 are arranged in a straight line in a plan view, the balance of strength as the lattice beam 1 is excellent.

請求項２に記載の発明は、例えば図５に示すように、請求項１に記載のラチス梁において、
前記上弦材２の端部に、当該端部を被取付部（例えば基礎１１）に取り付けるための取付部材１２が固定されており、この取付部材１２が前記補強部材３０にも固定されていることを特徴とする。 The invention according to claim 2 is a lattice beam according to claim 1, for example, as shown in FIG.
An attachment member 12 for attaching the end portion to the attachment portion (for example, the foundation 11) is fixed to the end portion of the upper chord member 2, and the attachment member 12 is also fixed to the reinforcing member 30. It is characterized by.

請求項２に記載の発明によれば、上弦材２の端部に固定されている取付部材１２が補強部材３０にも固定されているので、取付部材１２を強固に固定することができる。したがって、上弦材２の端部の取付部材１２を被取付部（例えば基礎１１）に強固に取り付けることができる。   According to the second aspect of the present invention, since the attachment member 12 fixed to the end portion of the upper chord member 2 is also fixed to the reinforcing member 30, the attachment member 12 can be firmly fixed. Therefore, the attachment member 12 at the end of the upper chord member 2 can be firmly attached to the attached portion (for example, the foundation 11).

請求項３に記載の発明は、例えば図５に示すように、請求項２に記載のラチス梁において、
前記上弦材２の端面に、断面Ｌ形の前記取付部材１２の一片部１２ａが固定され、
前記補強部材１０の下部は、前記上弦材２の下部より下方に突出しており、この突出した部分に、前記取付部材１２の他片部１２ｂが固定されていることを特徴とする。 The invention according to claim 3 is a lattice beam according to claim 2, for example, as shown in FIG.
A piece 12a of the mounting member 12 having an L-shaped cross section is fixed to the end surface of the upper chord member 2,
The lower portion of the reinforcing member 10 protrudes downward from the lower portion of the upper chord member 2, and the other piece 12b of the mounting member 12 is fixed to the protruding portion.

請求項３に記載の発明によれば、上弦材２の端面に取付部材１２の一片部１２ａが固定され、補強部材３０の、上弦材２の下部より下方に突出した部分に取付部材１２の他片部１２ｂが固定されているので、取付部材１２の上弦材２に対する取付位置（上弦材２の長手方向における取付位置、上下方向における位置）を容易に位置決めできるとともに、他片部１２ｂに基礎１１等の被取付部から作用する力を補強部材１０によって確実に受けることができる。   According to the third aspect of the present invention, the one piece 12 a of the attachment member 12 is fixed to the end surface of the upper chord material 2, and the other of the attachment member 12 is protruded downward from the lower portion of the upper chord material 2 of the reinforcing member 30. Since the piece portion 12b is fixed, the attachment position of the attachment member 12 with respect to the upper chord material 2 (the attachment position in the longitudinal direction of the upper chord material 2, the position in the vertical direction) can be easily positioned, and the other piece portion 12b has the foundation 11 The force acting from the attached portion such as can be reliably received by the reinforcing member 10.

請求項４に記載の発明は、例えば図１および図３に示すように、請求項１〜３のいずれか一項に記載のラチス梁において、
前記下弦材３の端部に、前記上弦材２に向けて斜めに延びる斜材７が形成されおり、この斜材７が前記上弦材２の端部に固定されていることを特徴とする。 The invention according to claim 4 is the lattice beam according to any one of claims 1 to 3, for example, as shown in FIGS.
A diagonal material 7 extending obliquely toward the upper chord material 2 is formed at an end of the lower chord material 3, and the diagonal material 7 is fixed to an end of the upper chord material 2.

請求項４に記載の発明によれば、下弦材３の端部を斜材７によって上弦材２の端部に連結することができるので、下弦材３の端部を補強できる。   According to the invention described in claim 4, the end portion of the lower chord material 3 can be reinforced because the end portion of the lower chord material 3 can be connected to the end portion of the upper chord material 2 by the diagonal material 7.

本発明によれば、上弦材と下弦材との間にラチス材がジグザグに設けられてなるラチス梁の、上弦材の端部に、上弦材の長手方向に長尺な補強部材が固定されているので、ラチス梁の端部の強度を高くすることができる。   According to the present invention, a reinforcing member elongated in the longitudinal direction of the upper chord material is fixed to the end portion of the upper chord material of the lattice beam in which the lattice material is provided in a zigzag manner between the upper chord material and the lower chord material. Therefore, the strength of the end portion of the lattice beam can be increased.

本発明に係るラチス梁の一例を示すもので、（ａ）は正面図、（ｂ）は平面図、（ｃ）は（ａ）におけるＡ−Ａ線断面図である。An example of the lattice beam which concerns on this invention is shown, (a) is a front view, (b) is a top view, (c) is the sectional view on the AA line in (a). 同、（ａ）は補強部材の正面図、（ｂ）は補強部材の端面図である。FIG. 5A is a front view of the reinforcing member, and FIG. 5B is an end view of the reinforcing member. 同、ラチス梁の端部を基礎に取り付けた状態を示す正面図である。It is a front view which shows the state which attached the edge part of the lattice beam to the foundation same as the above. 同、ラチス梁の端部を基礎に取り付ける方法を示す斜視図である。It is a perspective view which shows the method of attaching the edge part of a lattice beam to a foundation equally. 本発明に係るラチス梁の他の例を示す正面図である。It is a front view which shows the other example of the lattice beam which concerns on this invention.

以下図面を参照して本発明に係るラチス梁の実施の形態について説明する。
（第１の実施の形態）
図１〜図４は本発明の第１の実施の形態を示すものである。
図１に示すように、ラチス梁１は、上弦材２と、下弦材３と、これらの間にジグザグに設けられたラチス材４とを備えている。 Embodiments of a lattice beam according to the present invention will be described below with reference to the drawings.
(First embodiment)
1 to 4 show a first embodiment of the present invention.
As shown in FIG. 1, the lattice beam 1 includes an upper chord member 2, a lower chord member 3, and a lattice member 4 provided in a zigzag manner therebetween.

上弦材２は、その厚さ方向（図１（ａ）において紙面と直交する方向）に平行に配置された一対の上弦構成部材５，５によって構成されている。
上弦構成部材５は断面Ｌ形の長尺部材であり、直角に交わる一片部５ａと他片部５ｂとから構成されている。そして、上弦構成部材５，５は、その他片部５ｂ，５ｂを所定の隙間をもって平行に設け、かつその一片部５ａ，５ａを水平に設けて、配置されている。なお、一片部５ａ，５ａは面一となっている。 The upper chord member 2 is composed of a pair of upper chord constituting members 5 and 5 arranged in parallel to the thickness direction (a direction orthogonal to the paper surface in FIG. 1A).
The upper chord constituting member 5 is a long member having an L-shaped cross section, and is composed of one piece portion 5a and another piece portion 5b that intersect at right angles. The upper chord constituting members 5 and 5 are arranged such that the other pieces 5b and 5b are provided in parallel with a predetermined gap and the one pieces 5a and 5a are provided horizontally. The one piece portions 5a and 5a are flush with each other.

下弦材３は、その厚さ方向（図１（ａ）において紙面と直交する方向）に平行に配置された一対の下弦構成部材６，６によって構成されている。
下弦構成部材６は、上弦構成部材５より短い断面Ｌ形の長尺部材であり、直角に交わる一片部６ａと他片部６ｂとから構成されている。そして、下弦構成部材６，６は、その他片部６ｂ，６ｂを所定の隙間をもって平行に設け、かつその一片部６ａ，６ａを水平に設けて、配置されている。なお、一片部６ａ，６ａは面一となっている。
下弦材３を構成する下弦構成部材６の端部には、上弦構成部材５に向けて斜めに延びる斜材７が形成されている。この斜材７は下弦構成部材６の他片部６ｂの端部に切り込みを形成し、この切り込みにて一片部６ａの端部を斜め上方に折り曲げることによって形成されている。なお、折り曲げることによって、他片部６ｂの切り込みを入れた部分の両側は互いに重なっている。
このようにして形成された斜材７の端部は上弦構成部材５の他片部５ｂに溶接によって固定されている。また、斜材７は一対の下弦構成部材６，６のそれぞれに、かつ両端部に形成されている。 The lower chord material 3 is constituted by a pair of lower chord constituting members 6 and 6 arranged in parallel to the thickness direction (a direction perpendicular to the paper surface in FIG. 1A).
The lower chord constituting member 6 is a long member having an L-shaped cross section shorter than the upper chord constituting member 5, and is composed of one piece portion 6a and another piece portion 6b that intersect at right angles. The lower chord constituting members 6 and 6 are arranged such that the other piece portions 6b and 6b are provided in parallel with a predetermined gap and the one piece portions 6a and 6a are provided horizontally. The one piece portions 6a and 6a are flush with each other.
A diagonal member 7 extending obliquely toward the upper chord component 5 is formed at the end of the lower chord component 6 constituting the lower chord member 3. The diagonal member 7 is formed by forming a cut at the end of the other piece 6b of the lower chord component 6 and bending the end of the one piece 6a diagonally upward by this cut. In addition, by bending, both sides of the cut portion of the other piece 6b overlap each other.
The end of the diagonal member 7 formed in this way is fixed to the other piece 5b of the upper chord constituting member 5 by welding. Further, the diagonal member 7 is formed on each of the pair of lower chord constituting members 6 and 6 and at both ends.

ラチス材４は上弦材２と下弦材３との間にジグザグに設けられている。また、ラチス材４は、平面視において上弦構成部材５，５間および下弦構成部材６，６間に配置されて、これら上弦構成部材５，５および下弦構成部材６，６に固定されている。
すなわち、ジグザグ状のラチス材４の上部の折曲部が上弦構成部材５，５の他片部５ｂ，５ｂ間に配置されて、これら他片部５ｂ，５ｂに溶接によって固定されている。また、ラチス材４の下部の折曲部が下弦構成部材６，６の他片部６ｂ，６ｂ間に配置されて、これら他片部６ｂ，６ｂに溶接によって固定されている。
また、ラチス材４の端部は、下弦構成部材６，６の他片部６ｂ，６ｂ間に配置されて、これら他片部６ｂ，６ｂに溶接によって固定されている。
このようにして、上弦材２を構成する上弦構成部材５，５、下弦材３を構成する下弦構成部材６，６、ラチス材４が一体化されている。 The lattice material 4 is provided in a zigzag between the upper chord material 2 and the lower chord material 3. The lattice material 4 is disposed between the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6 in a plan view, and is fixed to the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6.
That is, the upper bent portion of the zigzag lattice 4 is disposed between the other pieces 5b, 5b of the upper chord constituting members 5, 5, and is fixed to these other pieces 5b, 5b by welding. Further, the lower bent portion of the lattice material 4 is disposed between the other pieces 6b, 6b of the lower chord constituting members 6, 6, and is fixed to these other pieces 6b, 6b by welding.
Moreover, the edge part of the lattice material 4 is arrange | positioned between the other piece parts 6b and 6b of the lower chord structural members 6 and 6, and is being fixed to these other piece parts 6b and 6b by welding.
In this way, the upper chord constituent members 5 and 5 constituting the upper chord member 2, the lower chord constituting members 6 and 6 constituting the lower chord member 3, and the lattice member 4 are integrated.

前記上弦材２の両端部には、それぞれ上弦材２の長手方向に長尺な補強部材１０が固定されている。
すなわち、補強部材１０は、図２に示すように、左右に長い長方形板状の鉄板で形成されており、その端部の下辺部には矩形状の切欠部１０ａが形成されている。また、補強部材１０の厚さは、上弦構成部材５，５間の隙間と等しくなっており、短辺部の長さは上弦構成部材５の他片部５ｂの上下の長さより長くなっている。
そして、このような構成の補強部材１０は、平面視において上弦構成部材５，５間に配置されて、当該上弦構成部材５，５に固定されている。
すなわち、補強部材１０は、上弦構成部材５の他片部５ｂ，５ｂ間に、補強部材１０の上辺を上弦構成部材５の他片部５ｂの上端と等しい高さに合せ、かつ、補強部材１０の端面を上弦構成部材５の端面と面一になるように、かつ切欠部１０ａを上弦構成部材５の端部側に位置させるようにして、挿入されている。
そして、補強部材１０は上弦構成部材５，５の他片部５ｂ，５ｂに挟み付けられた状態で溶接によって強固に固定されている。
この状態において、補強部材１０の下辺部は上弦構成部材５の下辺部より下方に突出している。 Reinforcing members 10 that are long in the longitudinal direction of the upper chord material 2 are fixed to both ends of the upper chord material 2.
That is, as shown in FIG. 2, the reinforcing member 10 is formed of a rectangular plate-like iron plate that is long on the left and right, and a rectangular notch 10 a is formed on the lower side of the end. Further, the thickness of the reinforcing member 10 is equal to the gap between the upper chord constituting members 5 and 5, and the length of the short side portion is longer than the upper and lower lengths of the other piece 5b of the upper chord constituting member 5. .
The reinforcing member 10 having such a configuration is disposed between the upper chord constituting members 5 and 5 in a plan view and is fixed to the upper chord constituting members 5 and 5.
That is, the reinforcing member 10 has the upper side of the reinforcing member 10 between the other pieces 5b, 5b of the upper chord constituting member 5 and the same height as the upper end of the other piece 5b of the upper chord constituting member 5, and the reinforcing member 10 Are inserted so that the end face of the upper chord constituting member 5 is flush with the end face of the upper chord constituting member 5 and the notch 10a is positioned on the end portion side of the upper chord constituting member 5.
The reinforcing member 10 is firmly fixed by welding while being sandwiched between the other pieces 5b, 5b of the upper chord constituting members 5, 5.
In this state, the lower side portion of the reinforcing member 10 protrudes downward from the lower side portion of the upper chord constituting member 5.

また、上弦構成部材５，５によって構成された上弦材２の端部には、図３および図４に示すように、当該端部を基礎（被取付部）１１に取り付けるための取付部材１２が固定されている。
すなわち、取付部材１２は断面Ｌ形に形成されており、その鉛直な一片部１２ａが上弦構成部材５，５の端面にこれらの間の隙間を跨ぐようにして溶接によって固定されている。また、取付部材１２の他片部１２ｂの先端部には、当該先端部を斜め下方に折曲してなる固定部１２ｃが形成されており、この固定部１２ｃは前記斜材７に溶接によって固定されている。また、他片部１２ｂには、ボルト挿通用の穴１２ｄ，１２ｄが離間して形成されている。 Further, as shown in FIGS. 3 and 4, an attachment member 12 for attaching the end portion to the foundation (attached portion) 11 is provided at the end portion of the upper chord member 2 constituted by the upper chord constituting members 5 and 5. It is fixed.
That is, the mounting member 12 is formed in an L-shaped cross section, and its vertical one piece 12a is fixed to the end surfaces of the upper chord constituting members 5 and 5 by welding so as to straddle the gap between them. Further, a fixing portion 12c formed by bending the tip portion obliquely downward is formed at the tip of the other piece portion 12b of the attachment member 12, and the fixing portion 12c is fixed to the diagonal member 7 by welding. Has been. Also, bolts 12d and 12d for inserting bolts are formed in the other piece 12b apart from each other.

上記のような構成のラチス梁１の端部は、図３および図４に示すように、基礎１１に梁受金物１５を介して取り付けられている。
すなわちまず、梁受金物１５は取付部１６と、この取付部１６に固定された支持部１７とによって構成されている。
取付部１６は、平板を直角に折り曲げることによって断面Ｌ形に形成されており、上板部１６ａと側板部１６ｂとによって構成されている。
そして、上板部１６ａの裏面に接着剤を塗布したうえで当該上板部１６ａを基礎１１の上面に当接するとともに、側板部１６ｂの裏面に接着剤を塗布したうえで当該側板部１６ｂを基礎１１の側面に当接し、さらに、図示しないコンクリートビスを側板部１６ｂを通して基礎１１にねじ込むことによって、取付部１６が基礎１１に取り付けられている。 As shown in FIGS. 3 and 4, the end portion of the lattice beam 1 configured as described above is attached to the foundation 11 via a beam receiver 15.
That is, first, the beam receiver 15 is constituted by an attachment portion 16 and a support portion 17 fixed to the attachment portion 16.
The mounting portion 16 is formed in an L-shaped cross section by bending a flat plate at a right angle, and includes an upper plate portion 16a and a side plate portion 16b.
And after apply | coating an adhesive agent to the back surface of the upper plate part 16a, while contacting the said upper plate part 16a to the upper surface of the foundation 11, applying the adhesive agent to the back surface of the side plate part 16b, and making the said base plate part 16b a foundation The attachment portion 16 is attached to the foundation 11 by abutting against the side surface of 11 and screwing a concrete screw (not shown) into the foundation 11 through the side plate portion 16b.

支持部１７は上方に開口する断面略コ字形に形成されており、支持部１７の上端部には水平なフランジ部１７ａ，１７ａが形成されている。支持部１７の断面コ字形を構成する両側板部１７ｂ，１７ｂ間の距離は、前記取付部材１２の幅より若干長くなっている。また、支持部１７の底板部１７ｃには、底板部１７ｃの長辺方向に長い長穴が形成されている。
このような構成の支持部１７はその端部を取付部１６の側板部１６ｂに、フランジ部１７ａが上板部１６ａより下方に位置するようにして、当接したうえで溶接によって固定されている。 The support portion 17 is formed in a substantially U-shaped cross section that opens upward, and horizontal flange portions 17 a and 17 a are formed at the upper end portion of the support portion 17. The distance between the side plate portions 17b, 17b constituting the U-shaped cross section of the support portion 17 is slightly longer than the width of the mounting member 12. A long hole is formed in the bottom plate portion 17c of the support portion 17 in the long side direction of the bottom plate portion 17c.
The support portion 17 having such a configuration is fixed by welding after the end portion is in contact with the side plate portion 16b of the mounting portion 16 so that the flange portion 17a is positioned below the upper plate portion 16a. .

そして、ラチス梁１の端部の取付部材１２を、梁受金物１５の支持部１７の側板部１７ｂ，１７ｂ間に上方から挿入するとともに底板部１７ｃに当接し、さらに、ボルト２０を底板部１７ｃに形成されている長穴と取付部材１２に形成されている穴１２ｄに挿通したうえで、平型ナット２１にねじ込んで締め付けることによって、取付部材１２が梁受金物１５に固定されている。ボルト２０の先端部は補強部材１０の切欠部１０ａに位置しているので、ボルト２０が補強部材１０に干渉するのを防止できる。
このようにして、ラチス梁１の端部が基礎１１に取付部材１２と梁受金物１５を介して取り付けられている。
なお、ラチス梁１の上弦材２の一片部５ａ，５ａには、床を支持するための木質の支持部材２２が工場等において予め固定されている。この支持部材２２に床（床パネル）が設置されて、当該床（床パネル）を通して床用ビスをねじ込むことによって、床（床パネル）が固定されるようになっている。 Then, the attachment member 12 at the end of the lattice beam 1 is inserted from above between the side plate portions 17b, 17b of the support portion 17 of the beam receiver 15, and is in contact with the bottom plate portion 17c. Further, the bolt 20 is connected to the bottom plate portion 17c. The mounting member 12 is fixed to the beam receiver 15 by being inserted into the long hole formed in the hole 12d and the hole 12d formed in the mounting member 12 and then screwed into the flat nut 21 and tightened. Since the front-end | tip part of the volt | bolt 20 is located in the notch part 10a of the reinforcement member 10, it can prevent that the volt | bolt 20 interferes with the reinforcement member 10. FIG.
In this way, the end of the lattice beam 1 is attached to the foundation 11 via the attachment member 12 and the beam receiver 15.
Note that a wooden support member 22 for supporting the floor is fixed in advance to a piece 5a, 5a of the upper chord member 2 of the lattice beam 1 in a factory or the like. A floor (floor panel) is installed on the support member 22, and the floor (floor panel) is fixed by screwing a floor screw through the floor (floor panel).

本実施の形態によれば、上弦材２の端部に、上弦材２の長手方向に長尺な補強部材１０が固定されているので、ラチス梁１の端部の強度を高くすることができる。
また、ラチス材４が、平面視において上弦構成部材５，５間および下弦構成部材６，６間に配置されて、これら上弦構成部材５，５および下弦構成部材６，６に固定されているので、ラチス材４を上弦構成部材５，５および下弦構成部材６，６によって挟み付けた状態で強固に固定できる。
また、補強部材１０が、平面視において上弦構成部材５，５間に配置されて、当該上弦構成部材５，５に固定されているので、補強部材１０を上弦構成部材５，５によって挟み付けた状態で強固に固定できる。
さらに、ラチス材４と補強部材１０とが平面視において一直線上に配置されるので、ラチス梁１としての強度のバランスが優れたものとなる。
また、下弦材３を構成する下弦構成部材６の端部に、上弦材２を構成する上弦構成部材５に向けて斜めに延びる斜材７が形成されおり、この斜材７が上弦構成部材５の端部に固定されているので、下弦構成部材６の端部を斜材７によって上弦構成部材５の端部に連結することができ、よって、下弦構成部材６の端部を補強できる。 According to the present embodiment, since the reinforcing member 10 that is long in the longitudinal direction of the upper chord member 2 is fixed to the end portion of the upper chord member 2, the strength of the end portion of the lattice beam 1 can be increased. .
Further, the lattice material 4 is disposed between the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6 in a plan view, and is fixed to the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6. The lattice material 4 can be firmly fixed in a state where the lattice material 4 is sandwiched between the upper chord constituting members 5 and 5 and the lower chord constituting members 6 and 6.
Further, since the reinforcing member 10 is disposed between the upper chord constituting members 5 and 5 and is fixed to the upper chord constituting members 5 and 5 in plan view, the reinforcing member 10 is sandwiched between the upper chord constituting members 5 and 5. Can be firmly fixed in the state.
Furthermore, since the lattice material 4 and the reinforcing member 10 are arranged in a straight line in a plan view, the balance of strength as the lattice beam 1 is excellent.
Further, a diagonal member 7 extending obliquely toward the upper chord constituting member 5 constituting the upper chord member 2 is formed at the end of the lower chord constituting member 6 constituting the lower chord member 3, and this oblique member 7 is the upper chord constituting member 5. Therefore, the end portion of the lower chord component member 6 can be connected to the end portion of the upper chord component member 5 by the diagonal member 7, and the end portion of the lower chord component member 6 can be reinforced.

（第２の実施の形態）
図５は本発明の第２の実施の形態を示すものである。
この第２の実施の形態が、前記第１の実施の形態と異なる点は、補強部材３０の構成とこの補強部材３０に取付部材１２を固定した点であるので、以下ではこの点について詳しく説明し、第１の実施の形態と共通部分には同一符号を付してその説明を省略ないし簡略化する。 (Second Embodiment)
FIG. 5 shows a second embodiment of the present invention.
The second embodiment is different from the first embodiment in the configuration of the reinforcing member 30 and the point that the mounting member 12 is fixed to the reinforcing member 30, and this will be described in detail below. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted or simplified.

本実施の形態における補強部材３０は、第１の実施の形態における補強部材１０に比して上下の長さが長くなっている。
すなわち、補強部材３０は、その下部が取付部材１２の他片部１２ｂに当接する位置まで下方に突出している。そして、上弦構成部材５，５の端面に、取付部材１２の一片部１２ａが固定されており、他片部１２ｂが補強部材３０の下面に当接されたうえで、溶接によって固定されている。
なお、取付部材１２の他片部１２ｂが補強部材３０の下面に固定されているので、取付部材１２には第１の実施の形態のような固定部１２ｃは形成されていない。 The reinforcing member 30 in the present embodiment is longer in the vertical length than the reinforcing member 10 in the first embodiment.
That is, the reinforcing member 30 protrudes downward to a position where the lower portion thereof abuts against the other piece 12 b of the mounting member 12. And the one piece part 12a of the attachment member 12 is being fixed to the end surface of the upper chord structural members 5 and 5, and after fixing the other piece part 12b to the lower surface of the reinforcement member 30, it is being fixed by welding.
Since the other piece 12b of the attachment member 12 is fixed to the lower surface of the reinforcing member 30, the attachment member 12 is not formed with the fixing portion 12c as in the first embodiment.

本実施の形態では、第１の実施の形態と同様の効果を得られる他、以下の効果が得られる。
上弦材２の端部に固定されている取付部材１２が補強部材３０にも固定されているので、取付部材１２を強固に固定することができる。したがって、上弦材２の端部の取付部材１２を基礎１１に強固に取り付けることができる。
また、上弦材２の端面に取付部材１２の一片部１２ａが固定され、補強部材３０の、上弦材２の下部より下方に突出した部分に取付部材１２の他片部１２ｂが固定されているので、取付部材１２の上弦材２に対する取付位置（上弦材２の長手方向における取付位置、上下方向における位置）を容易に位置決めできるとともに、他片部１２ｂに基礎１１から作用する力を補強部材３０によって確実に受けることができる。 In the present embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.
Since the attachment member 12 fixed to the end portion of the upper chord member 2 is also fixed to the reinforcing member 30, the attachment member 12 can be firmly fixed. Therefore, the attachment member 12 at the end of the upper chord member 2 can be firmly attached to the foundation 11.
Moreover, since the one piece part 12a of the attachment member 12 is fixed to the end surface of the upper chord material 2, and the other piece part 12b of the attachment member 12 is fixed to the portion of the reinforcing member 30 that protrudes downward from the lower portion of the upper chord material 2. The attachment position of the attachment member 12 with respect to the upper chord material 2 (the attachment position in the longitudinal direction of the upper chord material 2 and the position in the vertical direction) can be easily positioned, and the force acting from the foundation 11 on the other piece portion 12b is I can receive it reliably.

なお、上記の実施の形態では、上弦材２を一対の上弦構成部材５，５によって構成し、下弦材３を一対の下弦構成部材６，６によって構成したが、本発明はこれに限ることなく、例えば上弦材および下弦材をそれぞれ１本の長尺な部材で構成してもよい。   In the above embodiment, the upper chord member 2 is constituted by the pair of upper chord constituting members 5 and 5, and the lower chord member 3 is constituted by the pair of lower chord constituting members 6 and 6. However, the present invention is not limited to this. For example, each of the upper chord material and the lower chord material may be constituted by one long member.

１ ラチス梁
２ 上弦材
３ 下弦材
４ ラチス材
５ 上弦構成部材
６ 下弦構成部材
７ 斜材
１０，３０ 補強部材
１１ 基礎（被取付部）
１２ 取付部材
１２ａ 一片部
１２ｂ 他片部 DESCRIPTION OF SYMBOLS 1 Lattice beam 2 Upper chord material 3 Lower chord material 4 Lattice material 5 Upper chord component 6 Lower chord component 7 Diagonal material 10,30 Reinforcement member 11 Foundation (attachment part)
12 Mounting member 12a One piece 12b Other piece

Claims (4)

上弦材と下弦材との間にラチス材がジグザグに設けられてなるラチス梁であって、
前記上弦材の端部に、当該上弦材の長手方向に長尺な補強部材が固定されており、
前記上弦材がその厚さ方向に平行に配置された一対の上弦構成部材で構成され、
前記下弦材がその厚さ方向に平行に配置された一対の下弦構成部材で構成され、
前記ラチス材は、平面視において前記上弦構成部材間および前記下弦構成部材間に配置されて、これら上弦構成部材および下弦構成部材に固定され、
前記補強部材は、平面視において前記上弦構成部材間に配置されて、当該上弦構成部材に固定されていることを特徴とするラチス梁。 A lattice beam in which a lattice material is provided in a zigzag between an upper chord material and a lower chord material,
A long reinforcing member in the longitudinal direction of the upper chord material is fixed to the end portion of the upper chord material ,
The upper chord material is composed of a pair of upper chord components arranged in parallel to the thickness direction thereof,
The lower chord material is composed of a pair of lower chord components arranged in parallel to the thickness direction thereof,
The lattice material is disposed between the upper chord component and the lower chord component in a plan view, and is fixed to the upper chord component and the lower chord component.
The lattice beam is disposed between the upper chord constituting members in a plan view and fixed to the upper chord constituting member . 請求項１に記載のラチス梁において、
前記上弦材の端部に、当該端部を被取付部に取り付けるための取付部材が固定されており、
この取付部材が前記補強部材にも固定されていることを特徴とするラチス梁。 The lattice beam according to claim 1,
An attachment member for attaching the end portion to the attachment portion is fixed to the end portion of the upper chord material,
A lattice beam characterized in that the mounting member is also fixed to the reinforcing member. 請求項２に記載のラチス梁において、
前記上弦材の端面に、断面Ｌ形の前記取付部材の一片部が固定され、
前記補強部材の下部は、前記上弦材の下部より下方に突出しており、この突出した部分に、前記取付部材の他片部が固定されていることを特徴とするラチス梁。 The lattice beam according to claim 2,
A piece of the attachment member having an L-shaped cross section is fixed to the end surface of the upper chord material,
The lower part of the said reinforcement member protrudes below from the lower part of the said upper chord material, The other piece part of the said attachment member is being fixed to this protruded part, The lattice beam characterized by the above-mentioned. 請求項１〜３のいずれか一項に記載のラチス梁において、
前記下弦材の端部に、前記上弦材に向けて斜めに延びる斜材が形成されおり、この斜材が前記上弦材の端部に固定されていることを特徴とするラチス梁。 In the lattice beam according to any one of claims 1 to 3,
The lattice beam is characterized in that an oblique member extending obliquely toward the upper chord member is formed at an end portion of the lower chord member, and the oblique member is fixed to the end portion of the upper chord member.
JP2010184537A 2010-08-20 2010-08-20 Lattice beam Expired - Fee Related JP5603707B2 (en)

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JPS5399615A (en) * 1977-02-10 1978-08-31 Nat Jutaku Kenzai Floor assembly method
JPS5915283Y2 (en) * 1978-04-14 1984-05-07 順蔵 三浦 Joist daihiki
JPS61122358A (en) * 1984-11-19 1986-06-10 ミサワホ−ム株式会社 Lattice beam
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