JP6524524B2 - Frame structure - Google Patents

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JP6524524B2
JP6524524B2 JP2015151134A JP2015151134A JP6524524B2 JP 6524524 B2 JP6524524 B2 JP 6524524B2 JP 2015151134 A JP2015151134 A JP 2015151134A JP 2015151134 A JP2015151134 A JP 2015151134A JP 6524524 B2 JP6524524 B2 JP 6524524B2
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upper chord
beams
frame structure
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column
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JP2017031616A (en
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信博 竹間
信博 竹間
拓治 岩田
拓治 岩田
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Shimizu Corp
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Description

本発明は、架構構造に関する。   The present invention relates to a frame structure.

従来、ロングスパンの架構構造として、トラス構造の梁を採用したものが知られている（例えば、特許文献１）。   2. Description of the Related Art Conventionally, as a long span frame structure, one using a truss structure beam is known (for example, Patent Document 1).

特開平３−２２８９３６号公報JP-A-3-228936

トラス構造は、ラーメン構造と比べると重量（構造数量）を抑えることができるが、接合部が多いため、部材の増加率（梁材、柱材、束材、斜材などの構造部材の重量と、ガセットプレートやボルトなどの接合部に使用される接合部材の重量との和を構造部材の重量で割った値）が大きくなるという問題がある。
また、トラス構造の梁は、ラーメン構造の梁と比べると建設現場における加工手間がかり、労力および工期がかかるという問題がある。 The truss structure can reduce the weight (quantity of structure) compared to the rigid frame structure, but there are many joints, so the rate of increase of members (the weight of structural members such as beams, columns, bundles and diagonals) There is a problem that the sum of the weight of the joint member used for the joint such as the gusset plate and the bolt divided by the weight of the structural member increases.
In addition, beams of truss structure have a problem that it takes time and labor at the construction site, labor and construction period compared with beams of rigid frame structure.

そこで、本発明は、重量を抑えることができるとともに、建設現場における加工手間を軽減させることができる架構構造を提供することを目的とする。   Therefore, the present invention has an object to provide a frame structure capable of reducing the weight and reducing the processing time at the construction site.

上記目的を達成するため、本発明に係る架構構造は、梁間方向に配列された３つの柱と、梁間方向に隣り合う２つの前記柱間に架設され、それぞれ梁間方向の中間部に上方に突出するように屈曲した屈曲部が形成された２つの山型梁と、該２つの山型梁の上側に配置され前記３つの柱のうちの配列の中間の中間柱および前記２つの山型梁に接合された上弦材と、前記２つの山型梁と前記上弦材との間に配置され前記２つの山型梁および前記上弦材にそれぞれ接合された束材および斜材と、を有し、前記上弦材は、前記屈曲部よりも前記中間柱側において前記２つの山型梁に接合されていることを特徴とする。   In order to achieve the above object, the frame structure according to the present invention is constructed between three columns arranged in the inter-beam direction and two adjacent columns adjacent in the inter-beam direction, and each projects upward at an intermediate portion in the inter-beam direction Two angle-shaped beams in which the bent portions are formed so as to be bent, an intermediate column of the array of the three columns disposed on the upper side of the two angle-shaped beams, and the two angle-shaped beams And a bundle material and a diagonal member disposed between the two angle beams and the upper chord material and joined to the two angle beams and the upper chord material, respectively. The upper chord member is characterized in that it is joined to the two mountain-shaped beams on the side of the intermediate column than the bending portion.

本発明では、２つの山型梁の屈曲部よりも中間柱側の部分、中間柱、上弦材、束材および斜材によってトラス構造が構築されている。そして、このトラス構造は、２つの山型梁のそれぞれの屈曲部の間にのみに形成されている。
このため、梁間方向全体がトラス構造で構築されている架構構造と比べて、トラス構造の部分が少ないため、建設現場における加工手間を抑えることができるとともに、部材の増加率を抑えることができる。なお、本発明において梁間方向とは、平面視における梁が加工される方向（梁の延在方向）を示している。
また、架構全体がラーメン構造で構築されている架構構造と比べて、一部にトラス構造を採用しているため、重量を抑えることができる。 In the present invention, the truss structure is constructed by a portion closer to the middle column than the bending portions of the two angle beams, the middle column, the upper chord member, the bundle member, and the diagonal member. And this truss structure is formed only between the bent parts of each of the two angle beams.
For this reason, compared with the frame structure in which the entire inter-beam direction is constructed with a truss structure, the number of truss structure parts is small, so processing time at the construction site can be suppressed and an increase rate of members can be suppressed. In the present invention, the inter-beam direction indicates the direction in which the beam is processed in plan view (the extending direction of the beam).
In addition, since the truss structure is adopted in part as compared with the frame structure in which the whole frame is constructed by the rigid frame structure, the weight can be suppressed.

また、本発明に係る架構構造では、前記上弦材は、前記中間柱と剛接合されていることが好ましい。
このような構成とすることにより、上弦材に作用する荷重を中間柱を介して地盤に伝達させることができる。 Further, in the frame structure according to the present invention, the upper chord member is preferably rigidly connected to the intermediate column.
With such a configuration, the load acting on the upper chord member can be transmitted to the ground through the intermediate column.

また、本発明に係る架構構造では、前記山型梁のそれぞれの前記屈曲部よりも前記中間柱と離間する側の軸線と、前記上弦材の軸線とが平行になるように、前記山型梁に前記上弦材が接合されていることが好ましい。
このような構成とすることにより、上弦材の軸力を山型梁に対して山型梁の軸方向に伝達させることができ、上弦材から山型梁に作用する曲げ荷重を軽減させることができる。 Further, in the frame structure according to the present invention, the chevron beam is arranged such that the axis of the upper chord member is parallel to the axis of the side closer to the intermediate column than the bent portions of the chevrons. Preferably, the upper chord material is joined to
With such a configuration, the axial force of the upper chord can be transmitted to the angle beam in the axial direction of the angle beam, and the bending load acting on the angle beam from the upper chord can be reduced. it can.

本発明によれば、重量を抑えることができるとともに、建設現場における加工手間を抑えることができる。   According to the present invention, the weight can be suppressed, and the processing time and effort at the construction site can be suppressed.

（ａ）は本発明の実施形態による架構構造の一例を示す上面図、（ｂ）は正面図である。(A) is a top view which shows an example of the frame structure by embodiment of this invention, (b) is a front view. 図１（ｂ）の部分拡大図である。It is the elements on larger scale of FIG.1 (b).

以下、本発明の実施形態による架構構造について、図１および図２に基づいて説明する。
図１に示すように、本実施形態による架構構造１は、ロングスパンの建築物１１に採用されている。建築物１１は、平面視で略長方形状に形成されている。ここで、建築物１１の平面視形状である略長方形の辺がそれぞれ延びる方向を梁間方向（図１の矢印Ｘの方向）、桁行方向（図１（ａ）の矢印Ｙの方向、図１（ｂ）の紙面に直交する方向）とする。
本実施形態では、梁間方向全体に展開する架構構造１が桁行方向に間隔をあけて配列されている。桁行方向に隣り合う架構構造１は、桁材やブレースなどによって適宜接合されている。 Hereinafter, a frame structure according to an embodiment of the present invention will be described based on FIGS. 1 and 2.
As shown in FIG. 1, the frame structure 1 according to the present embodiment is employed in a long span building 11. The building 11 is formed in a substantially rectangular shape in plan view. Here, the sides of the substantially rectangular shape in plan view of the building 11 extend in the direction between the beams (the direction of arrow X in FIG. 1), the direction of the column row direction (the direction of arrow Y in FIG. b) in the direction perpendicular to the paper surface).
In the present embodiment, the frame structures 1 developed in the entire inter-beam direction are arranged at intervals in the column direction. The frame structures 1 adjacent in the girder row direction are appropriately joined by girder materials, braces and the like.

架構構造１は、梁間方向に間隔をあけて立設された３つの柱２，２，２と、梁間方向に隣り合う２つの柱２，２間それぞれに架設された２つの山型梁３，３と、２つの山型梁３，３の上側に配置され柱２および２つの山型梁３，３にそれぞれ接合された上弦材４と、２つの山型梁３，３および上弦材４にそれぞれ接合された複数の束材５，５…（図１（ｂ）参照）および斜材６，６…（図１（ｂ）参照）と、を有している。   The frame structure 1 includes three columns 2, 2 and 2 erected at intervals in the inter-beam direction, and two chevron beams 3 respectively constructed between two columns 2 and 2 adjacent in the inter-beam direction, 3 and the upper chord 4 disposed on the upper side of the two angle beams 3 and 3 and joined to the column 2 and the two elevation 3 and 3 respectively, and the two angle beams 3 and 3 and 4 .. (See FIG. 1 (b)) and diagonal members 6, 6 (see FIG. 1 (b)) which are respectively joined.

図１および図２に示すように、柱２，２，２は、例えばＨ形鋼などの形鋼で形成され、地盤Ｇに支持された基礎部７上に立設している。３つの柱２，２，２のうちの１つが梁間方向の中間に立設され、残りの２つが梁間方向の両端部に立設されている。ここで、梁間方向の中間に立設された柱２を第１柱（中間柱）２１とし、梁間方向の両端部にそれぞれ立設された２つの柱２，２を第２柱２２，２２とする。
２つの第２柱２２，２２は、略同じ高さ寸法に形成され、第１柱２１は、第２柱２２よりも大きい高さ寸法に形成されている。 As shown in FIGS. 1 and 2, the columns 2, 2 and 2 are formed of, for example, H-shaped steel or other shaped steels, and are erected on a base portion 7 supported by the ground G. One of the three columns 2, 2 and 2 is erected in the middle of the inter-beam direction, and the remaining two are erected at both ends in the inter-beam direction. Here, a pillar 2 erected in the middle between the beams is defined as a first pillar (intermediate pillar) 21, and two pillars 2 and 2 erected at both ends in the direction between the beams and the second pillars 22 and 22, respectively. Do.
The two second columns 22 are formed to have substantially the same height dimension, and the first column 21 is formed to have a height dimension larger than that of the second column 22.

２つの山型梁３，３は、梁間方向に直列配置されている。２つの山型梁３，３は、それぞれ例えばＨ形鋼などの形鋼で形成され、梁間方向の略中央部に上側に屈曲する屈曲部３１，３１が形成されている。
山型梁３，３は、それぞれの延在方向の一方の端部３ａが第１柱２１の上端部２１ａよりも低い位置で第１柱２１に剛接合され、他方の端部３ｂが第２柱２２の上端部２２ａに剛接合されている。山型梁３，３は、一方の端部３ａと第１柱２１との接合部が、他方の端部３ｂと第２柱２２，２２との接合部よりも低い位置となるように第１柱２１および第２柱２２に接合されている。 The two angle beams 3 and 3 are arranged in series in the direction between the beams. Each of the two angle beams 3 and 3 is formed of, for example, a shaped steel such as an H-shaped steel, and bending portions 31 and 31 which are bent upward are formed in a substantially central portion in the interbeam direction.
The chevrons 3, 3 are rigidly connected to the first pillar 21 at a position where one end 3a in the respective extending direction is lower than the upper end 21a of the first pillar 21, and the other end 3b is second It is rigidly connected to the upper end 22 a of the column 22. In the angle beam 3, 3, the joint between one end 3a and the first pillar 21 is positioned lower than the joint between the other end 3b and the second pillar 22 or 22. It is joined to the column 21 and the second column 22.

上弦材４は、第１柱２１および２つの山型梁３，３のうちの一方に接合される第１上弦材４１と、第１柱２１および２つの山型梁３，３のうちの他方に接合される第２上弦材４２と、を有している。第１上弦材４１および第２上弦材４２は、例えばＨ形鋼などの形鋼でそれぞれ形成されている。
第１上弦材４１および第２上弦材４２は、それぞれの一方の端部４１ａ，４２ａが第１柱２１の上端部２１ａに接合され、それぞれの他方の端部４１ｂ，４２ｂ（図１（ｂ）参照）が山型梁３の屈曲部３１よりも第１柱２１側の部分３２に接合されている。 The upper chord 4 is a first upper chord 41 joined to one of the first pillar 21 and the two angle beams 3, 3, and the other of the first pillar 21 and the two angle beams 3. And the second upper chord 42 to be joined to each other. The first upper chord 41 and the second upper chord 42 are each formed of a shaped steel such as an H-shaped steel, for example.
One end 41a, 42a of the first upper chord 41 and the second upper chord 42 is joined to the upper end 21a of the first column 21, and the other end 41b, 42b (FIG. 1 (b)) Is connected to the portion 32 closer to the first column 21 than the bending portion 31 of the angle beam 3.

第１柱２１は、上端部２１ａが山型梁３と第１上弦材４１の他方の端部４１ｂとの接合部および山型梁３と第２上弦材４２の他方の端部４２ｂ（図１（ｂ）参照）との接合部よりも高い位置に配置されている。このため、第１上弦材４１および第２上弦材４２の軸線は、それぞれ第１柱２１側から第２柱２２側に向かうと漸次下側に向かうように傾斜している。
第１上弦材４１および第２上弦材４２は、これらの軸線がそれぞれ山型梁３，３の屈曲部３１よりも第２柱２２側の部分３３の軸線と略平行となるように山型梁３，３に接合されている。 In the first column 21, the upper end 21 a is a joint between the angle beam 3 and the other end 41 b of the first upper chord 41 and the other end 42 b of the angle beam 3 and the second upper chord 42 (FIG. 1 It is arranged at a position higher than the junction with (b). For this reason, the axis lines of the first upper chord 41 and the second upper chord 42 are inclined so as to be gradually lower when going from the first pillar 21 side to the second pillar 22 side.
The first upper chord member 41 and the second upper chord member 42 are mountain-shaped beams such that their axes are substantially parallel to the axis of the portion 33 on the second column 22 side of the bending portion 31 of the mountain-shaped beam 3 It is joined to 3,3.

束材５は、山型梁３と第１上弦材４１の他方の端部４１ｂとの接合部と、第１柱２１との間、および、山型梁３と第２上弦材４２の他方の端部４２ｂとの接合部と、第１柱２１との間に、それぞれ梁間方向に略等間隔をあけて３つずつ配置されている。束材５は、例えばＨ形鋼などの形鋼で形成されている。
束材５は、それぞれ上端部５ａが上弦材４にピン接合され、下端部５ｂが山型梁３にピン接合されている。 The bundling material 5 is formed between the joint between the mountain-shaped beam 3 and the other end 41 b of the first upper chord material 41 and the first column 21, and the other of the mountain-shaped beam 3 and the second upper chord material 42. Three junctions between the joint with the end 42 b and the first pillar 21 are arranged at substantially equal intervals in the inter-beam direction. The bundle material 5 is formed of, for example, a shaped steel such as an H-shaped steel.
The bundle members 5 each have an upper end portion 5 a pinned to the upper chord member 4 and a lower end portion 5 b pinned to the mountain-shaped beam 3.

斜材６は、隣り合う束材５，５の間および束材５と第１柱２１との間それぞれに配置され、第１柱２１の両側に３つずつ配置されている。斜材６は、例えば、山型鋼などの形鋼で形成されていて、本実施形態では、２つの山型鋼を断面形状が略Ｔ字状となるように接合したものとしている。
斜材６は、第１柱２１側から第２柱２２側に向かうと漸次下側に向かうように傾斜した状態で配置されている。
斜材６は、それぞれ上側となる延在方向の端部６ａが上弦材４にピン接合され、下側となる延在方向の端部６ｂが山型梁３にピン接合されている。
斜材６は、該斜材６の軸線上に第１柱２１の軸線と上弦材４の軸線との交点、束材５の軸線と上弦材４の軸線との交点、および束材５の軸線と山型梁３の軸線との交点が位置するように配置されている。
このような架構構造１では、第１柱２１、上弦材４、２つの山型梁３，３、束材５および斜材６によってトラス構造が構築されている。 The diagonal members 6 are disposed between the adjacent bundle members 5 and 5 and between the bundle members 5 and the first columns 21, and three each are disposed on both sides of the first columns 21. The diagonal member 6 is formed of, for example, a shaped steel such as a mountain-shaped steel, and in the present embodiment, two mountain-shaped steels are joined so that the cross-sectional shape is substantially T-shaped.
The diagonal members 6 are disposed in a state of being inclined so as to gradually go downward when going from the first pillar 21 side to the second pillar 22 side.
The diagonal member 6 has its upper end 6a in the extending direction pinned to the upper chord 4 and the lower end 6b in the extending direction pinned to the chevron 3.
The diagonal member 6 is the intersection of the axis of the first column 21 and the axis of the upper chord 4 on the axis of the diagonal 6, the intersection of the axis of the bundle 5 and the axis of the upper chord 4, and the axis of the bundle 5 It is arranged so that the point of intersection of and the axis line of angle beam 3 may be located.
In such a frame structure 1, a truss structure is constructed by the first column 21, the upper chord 4, the two angle beams 3, 3, the bundle 5, and the diagonal 6.

次に、上述した架構構造１の作用・効果について図面を用いて説明する。
実施形態による架構構造１では、第１柱２１、２つの山型梁３，３、上弦材４、束材５および斜材６によってトラス構造が構築されている。そして、このトラス構造は、２つの山型梁３，３のそれぞれの屈曲部３１，３１の間にのみに形成されている。
このため、梁間方向全体がトラス構造で構築されている架構構造と比べて、トラス構造の部分が少ないため、建設現場における加工手間を抑えることができるとともに、部材の増加率を抑えることができる。
また、架構全体がラーメン構造で構築されている架構構造と比べて、一部にトラス構造を採用しているため、重量を抑えることができる。 Next, the operation and effects of the above-described frame structure 1 will be described using the drawings.
In the frame structure 1 according to the embodiment, a truss structure is constructed by the first column 21, the two angle beams 3, 3, the upper chord 4, the bundle 5 and the diagonal 6. And this truss structure is formed only between the bending parts 31 and 31 of each two angle beams 3 and 3.
For this reason, compared with the frame structure in which the entire inter-beam direction is constructed with a truss structure, the number of truss structure parts is small, so processing time at the construction site can be suppressed and an increase rate of members can be suppressed.
In addition, since the truss structure is adopted in part as compared with the frame structure in which the whole frame is constructed by the rigid frame structure, the weight can be suppressed.

また、上弦材４は、第１柱２１と剛接合されていることにより、上弦材４に作用する荷重を第１柱２１を介して地盤に伝達させることができる。
また、第１上弦材４１および第２上弦材４２は、これらの軸線がそれぞれ山型梁３，３の屈曲部３１よりも第２柱２２側の部分３３の軸線と略平行となるように山型梁３，３に接合されていることにより、上弦材４の軸力を山型梁３にその軸方向に伝達させることができ、上弦材４から山型梁３に作用する曲げ荷重を軽減させることができる。 Further, since the upper chord 4 is rigidly connected to the first column 21, the load acting on the upper chord 4 can be transmitted to the ground through the first post 21.
In addition, the first upper chord 41 and the second upper chord 42 have peaks such that their axes are substantially parallel to the axis of the portion 33 on the second column 22 side of the bending portion 31 of the angle beam 3. The axial force of the upper chord 4 can be transmitted to the angle beam 3 in the axial direction by being joined to the mold beam 3 and 3, and the bending load acting on the angle beam 3 from the upper chord 4 is reduced. It can be done.

以上、本発明による架構構造の実施形態について説明したが、本発明は上記の実施形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。
例えば、上記の実施形態では、架構構造１を採用する建築物１１が平面視において略長方形状に形成されているが、建築物の平面視形状は略長方形状以外でもよい。
また、複数の架構構造１が梁間方向に直列配置されていてもよい。この場合、梁間方向に隣り合う架構構造１それぞれの隣接する側の第２柱２２，２２が共有されていてもよい。
また、上記の実施形態では、山型梁３，３は、第１柱２１との接合部が第２柱２２，２２との接合部よりも低くなるように第１柱２１および第２柱２２に接合されているが、山型梁３，３が第１柱２１および第２柱２２に接合される高さは適宜設定されてよい。 As mentioned above, although embodiment of the frame structure by this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning.
For example, in the above embodiment, the building 11 adopting the frame structure 1 is formed in a substantially rectangular shape in plan view, but the plan view shape of the building may be other than the substantially rectangular shape.
Also, a plurality of frame structures 1 may be arranged in series in the direction between beams. In this case, the second posts 22 and 22 adjacent to each other of the frame structures 1 adjacent in the inter-beam direction may be shared.
Further, in the above-described embodiment, the first and second columns 21 and 22 are configured such that the joint with the first column 21 is lower than the joint with the second column 22 and 22. The height at which the chevrons 3 and 3 are joined to the first and second columns 21 and 22 may be set appropriately.

また、上記の実施形態では、第１上弦材４１および第２上弦材４２は、これらの軸線がそれぞれ山型梁３，３の屈曲部３１よりも第２柱２２側の部分３３の軸線と平行になるように山型梁３，３に接合されているが、構造上問題なければこのように接合されていなくてもよい。
また、上記の実施形態では、第１上弦材４１および第２上弦材４２が第１柱２１に剛接合されているが、ピン接合されていてもよい。
また、各部材の数や形状、配置される向きは適宜設定されてよい。 In the above embodiment, the first upper chord 41 and the second upper chord 42 have their axes parallel to the axis of the portion 33 on the second pillar 22 side of the bending portion 31 of the angle beam 3. It is joined to the chevron 3, 3 in such a way that it does not have to be joined in this way if there is no problem in construction.
In the above embodiment, the first upper chord 41 and the second upper chord 42 are rigidly joined to the first column 21, but may be pin-joined.
In addition, the number, shape, and orientation of each member may be set as appropriate.

１ 架構構造
２ 柱
３ 山型梁
３ 軸線
４ 上弦材
５ 束材
６ 斜材
１１ 建築物
２１ 第１柱（中間柱）
２２ 第２柱
３１ 屈曲部 DESCRIPTION OF SYMBOLS 1 frame structure 2 pillar 3 angle beam 3 axis 4 upper chord material 5 bundle material 6 diagonal material 11 building 21 1st column (intermediate pillar)
22 second column 31 bend

Claims (3)

梁間方向に配列された３つの柱と、
梁間方向に隣り合う２つの前記柱間に架設され、それぞれ梁間方向の中間部に上方に突出するように屈曲した屈曲部が形成された２つの山型梁と、
該２つの山型梁の上側に配置され前記３つの柱のうちの配列の中間の中間柱および前記２つの山型梁に接合された上弦材と、
前記２つの山型梁と前記上弦材との間に配置され前記２つの山型梁および前記上弦材にそれぞれ接合された束材および斜材と、を有し、
前記上弦材は、前記屈曲部よりも前記中間柱側において前記２つの山型梁に接合されていることを特徴とする架構構造。 Three columns arranged in the direction between beams,
Two mountain-shaped beams which are bridged between two columns adjacent to each other in the inter-beam direction and in which bent portions bent so as to project upward in the middle part in the inter-beam direction are formed respectively;
An intermediate column disposed on the upper side of the two chevron beams and intermediate to the array of the three pillars and a top chord joined to the two chevron beams;
A bundle material and a diagonal member disposed between the two angle beams and the upper chord material and joined to the two angle beams and the upper chord material, respectively;
The frame structure characterized in that the upper chord member is joined to the two mountain-shaped beams on the intermediate column side with respect to the bending portion. 前記上弦材は、前記中間柱と剛接合されていることを特徴とする請求項１に記載の架構構造。   The frame structure according to claim 1, wherein the upper chord member is rigidly connected to the intermediate column. 前記山型梁のそれぞれの前記屈曲部よりも前記中間柱と離間する側の軸線と、前記上弦材の軸線とが平行になるように、前記山型梁に前記上弦材が接合されていることを特徴とする請求項１又は２に記載の架構構造。   The upper chord member is joined to the chevron beam such that the axis of the upper chord member is parallel to the axis line of the upper chord member on the side closer to the intermediate column than the respective bending portions of the chevron beam The frame structure according to claim 1 or 2, characterized in that
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