JP2020084536A - Building - Google Patents

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JP2020084536A
JP2020084536A JP2018219134A JP2018219134A JP2020084536A JP 2020084536 A JP2020084536 A JP 2020084536A JP 2018219134 A JP2018219134 A JP 2018219134A JP 2018219134 A JP2018219134 A JP 2018219134A JP 2020084536 A JP2020084536 A JP 2020084536A
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pair
steel frame
floor
vibration
building
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JP7169174B2 (en
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朋典 渋谷
Tomonori Shibuya
朋典 渋谷
久人 奥出
Hisato Okude
久人 奥出
靖彦 山下
Yasuhiko Yamashita
靖彦 山下
壮一郎 九嶋
Soichiro Kushima
壮一郎 九嶋
友規 村上
Tomoki Murakami
友規 村上
義之 中曽根
Yoshiyuki Nakasone
義之 中曽根
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Takenaka Komuten Co Ltd
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Takenaka Komuten Co Ltd
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Abstract

To provide a technique for suitably suppressing vibration of a floor part in a building which supports its right and left by a pair of inclined large beams and supports its front and rear by a pair of structural beams with respect to the floor part having audience seats on an upper surface.SOLUTION: The building comprises beam steel 35A installed between a pair of inclined large beams 33 at a longitudinal middle part between a pair of structural beams 34. The beam steel 35A is added with a weight material 35B for increasing weight so as to be configured as a vibration suppressing beam 35 for suppressing vibration of a floor part 31A.SELECTED DRAWING: Figure 2

Description

本発明は、前方の競技場側から後方に向けて上がる方向に延びる左右一対の傾斜大梁と、当該一対の傾斜大梁間に架設された前後一対の構造梁と、前記一対の傾斜大梁及び前記一対の構造梁により支持されて上面に観客席が設けられる床部とを、を備えた建築物に関する。 The present invention relates to a pair of left and right tilted girders extending in the direction of going up from the front stadium side to the rear, a pair of front and rear structural girders installed between the pair of tilted girders, the pair of tilted girders and the pair of tilted girders. A floor part supported by structural beams and having a spectator seat on the upper surface thereof.

競技場の観客席が上面に設けられた床部を備える建築物では、前方の競技場側から後方に向けて上がる方向に延びる傾斜大梁が左右方向に沿って複数並設されており、それら左右一対の傾斜大梁間に架設される構造梁が前後方向に沿って複数並設されており、上記床部がこれら複数の傾斜大梁と構造梁とにより支持されている（例えば、特許文献１を参照。）。 In a building that has a floor with spectator seats on the upper surface, a plurality of inclined girders extending in the direction from the front stadium side to the rear are arranged side by side along the left-right direction. A plurality of structural beams erected between a pair of inclined girders are juxtaposed along the front-rear direction, and the floor is supported by the plurality of inclined girders and the structural beam (for example, see Patent Document 1). ..).

実開昭５９−１５２０５５号公報Japanese Utility Model Publication No. 59-152055

上記特許文献１に記載の建築物において、床部の特に競技場に近い側では、その上面に設けられた観客席にて多くの人が一斉に飛び跳ねた際に、比較的大きく振動するという問題がある。
この実情に鑑み、本発明の主たる課題は、観客席が上面に設けられた床部に対し、その左右を一対の傾斜大梁で支持すると共に、その前後を一対の構造梁で支持する建築物において、床部の振動を好適に抑制する技術を提供する点にある。 In the building described in Patent Document 1, on the side of the floor, particularly near the stadium, when many people jump in a spectator seat provided on the upper surface of the building, it vibrates comparatively greatly. There is.
In view of this actual situation, the main problem of the present invention is to construct a building in which the left and right sides of the floor are provided with a pair of inclined girders, and the front and back of the floor are supported by a pair of structural beams. The point is to provide a technique for suitably suppressing the vibration of the floor.

本発明の第１特徴構成は、前方の競技場側から後方に向けて上がる方向に延びる左右一対の傾斜大梁と、
当該一対の傾斜大梁間に架設された前後一対の構造梁と、
前記一対の傾斜大梁及び前記一対の構造梁により支持されて上面に観客席が設けられる床部と、を備えた建築物であって、
前記一対の構造梁の間の前後中間部位において前記一対の傾斜大梁間に架設された梁鉄骨を備え、
前記梁鉄骨が、重量を増加するための重量材が付加されることで前記床部の振動を抑制する振動抑制梁として構成されている点にある。 A first characteristic configuration of the present invention is a pair of left and right inclined girders extending in a direction of going up from the front stadium side to the rear,
A pair of front and rear structural beams erected between the pair of inclined large beams,
A building comprising: a floor portion supported by the pair of slanted girders and the pair of structural beams and provided with a spectator seat on an upper surface,
A beam steel frame installed between the pair of slanted girders at a front-rear intermediate portion between the pair of structural beams,
The beam steel frame is configured as a vibration suppressing beam that suppresses vibration of the floor by adding a weight material for increasing the weight.

本構成によれば、前後に並ぶ一対の構造梁の間の前後中間部位において左右に並ぶ一対の傾斜大梁間に架設される梁鉄骨が設けられているので、一対の傾斜大梁及び一対の構造梁に囲まれた床部の中間部位の撓みが抑制される。更に、この梁鉄骨は、重量材が付加されることで、床部の振動を抑制する振動抑制梁として構成されている。即ち、かかる重量が増加された振動抑制梁が、一対の構造梁の前後中間部位において一対の傾斜大梁間に架設されて床部の中間部位と一体的に挙動するので、当該床部の中間部位の固有振動数を低下させて、観客席における多くの人の飛び跳ねに起因する振動を抑制することができる。
従って、本発明により、一対の傾斜大梁と一対の構造梁とで支持された床部の振動を好適に抑制する技術を提供することができる。 According to this configuration, since the beam steel frame installed between the pair of left and right tilted girders is provided in the front-rear intermediate portion between the pair of front and back structural beams, the pair of tilted girders and the pair of structural girders are provided. Bending of the intermediate portion of the floor portion surrounded by is suppressed. Further, the beam steel frame is configured as a vibration suppressing beam for suppressing vibration of the floor by adding a weight material. That is, since the vibration suppressing beam having the increased weight is installed between the pair of inclined girders at the front and rear intermediate portions of the pair of structural beams and behaves integrally with the intermediate portion of the floor portion, the intermediate portion of the floor portion is It is possible to reduce the natural frequency of the noise and suppress the vibration caused by many people jumping in the spectator seat.
Therefore, according to the present invention, it is possible to provide a technique for suitably suppressing the vibration of the floor portion supported by the pair of inclined girders and the pair of structural beams.

本発明の第２特徴構成は、前記傾斜大梁及び前記構造梁が鉄筋コンクリート製である点にある。 A second characteristic configuration of the present invention is that the inclined large beam and the structural beam are made of reinforced concrete.

本構成によれば、傾斜大梁及び構造梁をプレキャストコンクリート等の鉄筋コンクリート製とする場合であっても、振動抑制梁が梁鉄骨を基材として有するものであるので、鉄筋コンクリート製の傾斜大梁に対して同じく鉄筋コンクリート製の梁を接続する場合と比較して、鉄筋コンクリート製の傾斜大梁に対して振動抑制梁の梁鉄骨を簡単に接続することができる。 According to this configuration, even when the slanted girder and the structural beam are made of reinforced concrete such as precast concrete, since the vibration suppressing beam has the beam steel frame as a base material, the slanted girder made of reinforced concrete is used. Similarly to the case of connecting the beam made of reinforced concrete, the beam steel frame of the vibration suppressing beam can be easily connected to the inclined large beam made of reinforced concrete.

本発明の第３特徴構成は、前記振動抑制梁において、前記梁鉄骨がＨ形鋼で構成されており、当該Ｈ形鋼の上下フランジ間の空間に前記重量材としてのコンクリートが打設されている点にある。 In a third characteristic configuration of the present invention, in the vibration suppressing beam, the beam steel frame is made of H-shaped steel, and concrete as the heavy material is placed in a space between upper and lower flanges of the H-shaped steel. There is a point.

本構成によれば、梁鉄骨の外側にコンクリートを打設するという合理的な構成を採用して、振動抑制梁の梁鉄骨に重量材としてのコンクリートを付加することができるので、低コスト化且つ工期短縮を実現できる。更に、振動抑制梁の梁鉄骨としてのＨ形鋼の上下フランジを、重量材としてのコンクリート打設時に必要な型枠として機能させることができるので、一層の低コスト化且つ工期短縮を実現できる。 According to this configuration, it is possible to add concrete as a weight material to the beam steel frame of the vibration suppressing beam by adopting a rational configuration in which concrete is placed on the outside of the beam steel frame. The construction period can be shortened. Furthermore, since the upper and lower flanges of H-shaped steel as the beam steel of the vibration suppressing beam can be made to function as a formwork required when placing concrete as a heavy material, further cost reduction and shortening of the construction period can be realized.

本発明の第４特徴構成は、前記振動抑制梁が、前記梁鉄骨の長手方向において端部を除く範囲内に前記重量材を付加して構成されており、
前記梁鉄骨の端部が、前記傾斜大梁に取り付けられているガセットプレートに対してボルト接合されているにある。 In a fourth characteristic configuration of the present invention, the vibration suppressing beam is configured by adding the weight member within a range excluding an end portion in a longitudinal direction of the beam steel frame,
The end of the beam steel frame is bolted to a gusset plate attached to the inclined girder.

本構成によれば、振動抑制梁における梁鉄骨の端部には重量材が付加されていないので、当該重量材との干渉を効果的に回避しながら、当該梁鉄骨の端部を傾斜大梁に取り付けられているガセットプレートにボルト接合することができる。 According to this configuration, since the weight material is not added to the end portion of the beam steel frame in the vibration suppressing beam, the end portion of the beam steel frame is formed into the inclined large beam while effectively avoiding the interference with the weight material. Can be bolted to an attached gusset plate.

本実施形態の建築物の立面図Elevation of the building of this embodiment 本実施形態の建築物において振動抑制梁の設置部分の拡大率面図FIG. 3 is an enlarged scale view of the installation portion of the vibration suppression beam in the building of the present embodiment. 振動抑制梁の立面図Elevation of vibration suppression beam 振動抑制梁の端部と傾斜大梁との接続部分の側面図Side view of the connection between the end of the vibration suppression beam and the slanted girder

本発明の実施形態について図面に基づいて説明する。
図１に示す建築物１００は、前方の競技場Ｇ側から後方に向けて上る方向に傾斜して観客席Ｓが上面に設けられた床部１１，３１Ａ，３１Ｂを備えた建築物として構成されている。尚、図１では、観客席Ｓの一部のみを描画しているが、この観客席Ｓの形態や配置等については適宜変更することができる。 Embodiments of the present invention will be described with reference to the drawings.
The building 100 shown in FIG. 1 is configured as a building including floors 11, 31A, 31B inclining upward from the front stadium G side toward the rear and having a spectator seat S on the upper surface. ing. In FIG. 1, only a part of the spectator seat S is drawn, but the form, arrangement, etc. of the spectator seat S can be appropriately changed.

かかる建築物１００は、詳細については後述するが、競技場Ｇに隣接する最前部分に構築された最前構造物１０と、当該最前構造物１０からみて競技場Ｇとは反対側の後方部分に構築された主構造物３０と、これらの上方を覆う屋根構造物５０とを有して構成されている。そして、上記最前構造物１０の上面には、上記床部としての競技場Ｇ近傍から後方に向けて上る方向に傾斜する階段状の最前床部１１が設けられている。一方、上記主構造物３０の上面には、最前床部１１の後端部近傍から後方に向けて上る方向に傾斜する階段状の主床部３１Ａ，３１Ｂが設けられている。また、主床部３１Ａ，３１Ｂは、前半部分の前側主床部３１Ａと後半部分の後側主床部３１Ｂとで構成されており、後側主床部３１Ｂは、前側主床部３１Ａの後端部の上方位置から後方に向けて上る方向に傾斜するように設けられている。
尚、本実施形態において、床部１１，３１Ａ，３１Ｂは階段状の所謂段床部として構成するが、例えば上面を傾斜面として平板状に構成するなど、適宜形態を変更することもできる。 The building 100, which will be described in detail later, is constructed in the forefront structure 10 constructed in the forefront part adjacent to the stadium G, and in the rear part on the side opposite to the stadium G viewed from the forefront structure 10. The main structure 30 and the roof structure 50 that covers the above main structures 30 are provided. Further, on the upper surface of the forefront structure 10, there is provided a staircase-like foremost floor 11 that is inclined in a direction going up rearward from the vicinity of the stadium G as the floor. On the other hand, on the upper surface of the main structure 30, step-like main floor portions 31A and 31B are provided which are inclined in a direction that rises rearward from the vicinity of the rear end portion of the front floor portion 11. The main floors 31A and 31B are composed of a front main floor 31A in the front half and a rear main floor 31B in the rear half, and the rear main floor 31B is located behind the front main floor 31A. It is provided so as to incline backward from the upper position of the end portion.
In the present embodiment, the floor portions 11, 31A, 31B are configured as so-called stepped floor portions having a staircase shape, but may be appropriately modified, for example, configured as a flat plate shape with the upper surface as an inclined surface.

上記床部１１，３１Ａ，３１Ｂを構成する床板１２，３２は、プレキャストコンクリートで構成されており、例えば２段分の床板１２，３２を予めプレキャストコンクリートで構築し、その構築したプレキャストコンクリート製の床板１２，３２を複数並べて床部１１，３１Ａ，３１Ｂを構築することができる。 The floor plates 12 and 32 forming the floor portions 11, 31A and 31B are made of precast concrete. For example, the floor plates 12 and 32 for two steps are preliminarily constructed from precast concrete, and the constructed floor plates made from precast concrete. The floor parts 11, 31A, 31B can be constructed by arranging a plurality of 12, 32.

主構造物３０において、床部３１Ａ，３１Ｂは、前方の競技場Ｇ側から後方に向けて上がる方向に延びる左右一対の傾斜大梁３３と、当該一対の傾斜大梁３３間に架設された前後一対の構造梁３４とによって支持されている。尚、本実施形態において、傾斜大梁３３の上面は後方に向けて上昇する階段状に形成されており、その上面に階段状の床部３１Ａ，３１Ｂ（床板３２）が設置されている。 In the main structure 30, the floor portions 31A and 31B include a pair of left and right inclined girders 33 extending in a direction of going up from the front stadium G side to the rear, and a pair of front and rear erected between the pair of inclined girders 33. It is supported by the structural beams 34. In the present embodiment, the upper surface of the slanted girder 33 is formed in a staircase shape that rises rearward, and staircase-shaped floor portions 31A and 31B (floor boards 32) are installed on the upper surface.

主構造物３０は、屋根構造物５０を支持する躯体として構成されている。即ち、主構造物３０には、床部３１Ｂから上方に突出する支柱部４０が設けられている。そして、屋根構造物５０は、前端部と後端部との間に位置する被支持部５１において主構造物３０の支柱部４０に支持され、後端部がバックステイ５５を介して主構造物３０の背面側に繋がれた片持ち式天秤トラス構造が採用されている。即ち、バックステイ５５は鋼管で構成されており、その上端部が上端接続部５６を介して屋根構造物５０の後端側に接続されており、その下端部が下端接続部５７を介して主構造物３０の背面側に接続されている。
以下、本実施形態の建築物１００が備える特徴構成について、説明を加える。 The main structure 30 is configured as a skeleton that supports the roof structure 50. That is, the main structure 30 is provided with the pillar portion 40 projecting upward from the floor portion 31B. Then, the roof structure 50 is supported by the support column 40 of the main structure 30 at the supported portion 51 located between the front end portion and the rear end portion, and the rear end portion is supported by the main structure via the backstay 55. A cantilever type balance truss structure connected to the back side of 30 is adopted. That is, the back stay 55 is made of a steel pipe, the upper end portion of which is connected to the rear end side of the roof structure 50 through the upper end connection portion 56, and the lower end portion of which is mainly connected through the lower end connection portion 57. It is connected to the back side of the structure 30.
Hereinafter, the characteristic configuration of the building 100 of the present embodiment will be described.

本実施形態の建築物１００は、一対の傾斜大梁３３と一対の構造梁３４とで支持された床部３１Ａの振動を好適に抑制するための振動対策構造を有する。
即ち、振動対策構造は、観客席Ｓにおいて多くの人の飛び跳ねに起因する振動を抑制するものとして構成されており、主構造物３０において、前後一対の構造梁３４間のスパンがその間で上記振動が懸念される距離に設定されている箇所である前側主床部３１Ａに対して設置されている。 The building 100 of the present embodiment has a vibration countermeasure structure for suitably suppressing vibration of the floor portion 31A supported by the pair of inclined girders 33 and the pair of structural beams 34.
That is, the anti-vibration structure is configured to suppress the vibration caused by many people jumping in the spectator seat S, and in the main structure 30, the span between the pair of front and rear structural beams 34 causes the above-mentioned vibration between them. Is installed with respect to the front main floor portion 31A, which is a location set at a distance where there is concern.

そして、図１、図２、及び図３に示すように、前後一対の構造梁３４の間の略中央において一対の傾斜大梁３３間に架設されたＨ形鋼からなる梁鉄骨３５Ａが設けられている。そして、当該梁鉄骨３５Ａが、重量を増加するためのコンクリート製の重量材３５Ｂが付加されることでの前側主床部３１Ａの振動を抑制する振動抑制梁３５として構成されている。
尚、本実施形態では、前後一対の構造梁３４の間の略中央に振動抑制梁３５が配置されているが、当該振動抑制梁３５の配置箇所については、前後一対の構造梁３４の間の前後中間部位であればよく、前後何れかの構造梁３４側に偏った位置に振動抑制梁３５を配置しても構わない。 As shown in FIGS. 1, 2, and 3, a beam steel frame 35A made of H-shaped steel is provided between the pair of front and rear structural beams 34 at a substantial center and is installed between the pair of inclined girders 33. There is. The beam steel frame 35A is configured as a vibration suppressing beam 35 that suppresses vibration of the front main floor portion 31A due to the addition of a concrete weight material 35B for increasing the weight.
In the present embodiment, the vibration suppressing beam 35 is arranged substantially in the center between the pair of front and rear structural beams 34. However, regarding the position of the vibration suppressing beam 35, the vibration suppressing beam 35 is disposed between the front and rear structural beams 34. The vibration suppression beam 35 may be arranged at a position biased to either side of the structural beam 34 on either side of the front and rear.

このように重量材３５Ｂを付加した梁鉄骨３５Ａが、一対の構造梁３４間に架設されており、更に、その梁鉄骨３５Ａの上面が前側主床部３１Ａを構成する床板３２の下面に当接している。このことで、左右一対の傾斜大梁３３及び一対の構造梁３４に囲まれた前側主床部３１Ａの中間部位の撓みが抑制されることになる。更に、この梁鉄骨３５Ａは、重量材３５Ｂが付加されることで、床部３１Ａの振動を抑制する振動抑制梁３５として構成されている。即ち、かかる重量が増加された振動抑制梁３５が、一対の構造梁３４の前後中間部位において一対の傾斜大梁３３間に架設されて床部３１Ａの中間部位と一体的に挙動する。すると、当該床部３１Ａの中間部位の固有振動数が低下して、観客席Ｓにおける多くの人の飛び跳ねに起因する振動が抑制されることになる。 The beam steel frame 35A thus added with the weight material 35B is laid between the pair of structural beams 34, and the upper surface of the beam steel frame 35A abuts on the lower surface of the floor plate 32 constituting the front main floor portion 31A. ing. As a result, the bending of the middle portion of the front main floor portion 31A surrounded by the pair of left and right inclined girders 33 and the pair of structural beams 34 is suppressed. Further, the beam steel frame 35A is configured as a vibration suppressing beam 35 that suppresses vibration of the floor portion 31A by adding a weight material 35B. That is, the vibration suppressing beam 35 having the increased weight is installed between the pair of inclined girders 33 at the front and rear intermediate portions of the pair of structural beams 34 and behaves integrally with the intermediate portion of the floor portion 31A. Then, the natural frequency of the middle portion of the floor portion 31A is reduced, and the vibration caused by many people jumping in the spectator seat S is suppressed.

上記振動抑制梁３５は、前側主床部３１Ａの中間部位において左右に延びる梁として主構造物３０に設けられている。このことを利用して、当該振動抑制梁３５は、図１及び図２に示すように、主構造物３０の内部から前側主床部３１Ａ上の観客席Ｓへ上る階段７０の上端部を受ける受け梁として利用されている。 The vibration suppressing beam 35 is provided in the main structure 30 as a beam extending in the left-right direction at an intermediate portion of the front main floor 31A. Utilizing this, the vibration suppressing beam 35 receives the upper end of the stairs 70 rising from the inside of the main structure 30 to the spectator seat S on the front main floor 31A, as shown in FIGS. 1 and 2. It is used as a receiving beam.

主構造物３０において、傾斜大梁３３及び構造梁３４は、プレキャストコンクリート等の鉄筋コンクリート製とされている。そして、Ｈ形鋼からなる梁鉄骨３５Ａを基材として有する振動抑制梁３５は、図４に示すように、傾斜大梁３３の側面にアンカー等を介して取り付けたガセットプレート３８に対して梁鉄骨３５Ａのウェブの端部を複数のボルト３７により接合する形態で、傾斜大梁３３に対して振動抑制梁３５が簡単な構造で接続されている。 In the main structure 30, the slanted large beam 33 and the structural beam 34 are made of reinforced concrete such as precast concrete. Further, as shown in FIG. 4, the vibration suppressing beam 35 having the beam steel frame 35A made of H-shaped steel as a base material is, as shown in FIG. The vibration suppressing beam 35 is connected to the slanted large beam 33 with a simple structure in a form in which the end portions of the web are joined by a plurality of bolts 37.

振動抑制梁３５は、図３及び図４に示すように、梁鉄骨３５Ａを構成するＨ形鋼の上下フランジ間の空間に重量材３５Ｂとしてのコンクリートが打設して構成されている。このとき、振動抑制梁３５の梁鉄骨３５ＡとしてのＨ形鋼の上下フランジは、重量材３５Ｂとしてのコンクリート打設時に必要な型枠として機能させている。
そして、このような梁鉄骨３５Ａへのコンクリートの打設は、建方前に建設現場にて施工することができる。これらのことで、振動抑制梁３５の製作等においては、低コスト化且つ工期短縮が実現されている。 As shown in FIGS. 3 and 4, the vibration suppressing beam 35 is configured by placing concrete as a weight material 35B in the space between the upper and lower flanges of the H-shaped steel forming the beam steel frame 35A. At this time, the upper and lower flanges of the H-shaped steel as the beam steel frame 35A of the vibration suppressing beam 35 are made to function as a formwork required at the time of placing concrete as the weight material 35B.
Then, such concrete pouring on the beam steel frame 35A can be performed at the construction site before erection. As a result, in manufacturing the vibration suppressing beam 35, the cost is reduced and the construction period is shortened.

図４に示すように、振動抑制梁３５は、梁鉄骨３５Ａの長手方向において端部を除く範囲内に重量材３５Ｂとしてのコンクリートが打設されている。また、梁鉄骨３Ａには、コンクリートが打設される中央部の領域とガセットプレート３８が接合される端部の領域とを仕切る仕切りプレート３９が取り付けられている。即ち、ガセットプレート３８が接合される梁鉄骨３５Ａの端部については、重量材３５Ｂとしてのコンクリートが打設されていない。このことで、重量材３５Ｂとガセットプレート３８との干渉が効果的に回避されている。 As shown in FIG. 4, in the vibration suppressing beam 35, concrete as a weight material 35B is cast in a range excluding the end portion in the longitudinal direction of the beam steel frame 35A. Further, a partition plate 39 is attached to the beam steel frame 3A to partition a central region where concrete is cast and an end region where the gusset plate 38 is joined. That is, concrete as the weight material 35B is not placed at the end of the beam steel frame 35A to which the gusset plate 38 is joined. As a result, the interference between the weight material 35B and the gusset plate 38 is effectively avoided.

〔別実施形態〕
本発明の他の実施形態について説明する。尚、以下に説明する各実施形態の構成は、それぞれ単独で適用することに限らず、他の実施形態の構成と組み合わせて適用することも可能である。 [Another embodiment]
Another embodiment of the present invention will be described. The configurations of the respective embodiments described below are not limited to being applied individually, but may be applied in combination with the configurations of other embodiments.

（１）上記実施形態では、重量材３５Ｂを梁鉄骨３５Ａに付加したコンクリートで構成したが、コンクリート以外の重量材を梁鉄骨３５Ａに付加して振動抑制梁３５を構成しても構わない。 (1) In the above embodiment, the weight member 35B is made of concrete in which the beam steel frame 35A is added, but a weight member other than concrete may be added to the beam steel frame 35A to form the vibration suppressing beam 35.

（２）上記実施形態では、振動抑制梁３５を基材となる梁鉄骨３５ＡをＨ形鋼としたが、別の鋼材で梁鉄骨３５Ａを構成しても構成しても構わない。 (2) In the above embodiment, the beam steel frame 35A that serves as the base material of the vibration suppressing beam 35 is the H-shaped steel, but the beam steel frame 35A may be formed of another steel material.

（３）上記実施形態では、梁鉄骨３５Ａの長手方向において端部を除く範囲内において、梁鉄骨３５Ａを構成するＨ形鋼の上下フランジ間の空間に重量材３５Ｂとしてのコンクリートが打設したが、梁鉄骨３５Ａに対する重量材３５Ｂの付加範囲や付加状態については適宜変更しても構わない。 (3) In the above-described embodiment, concrete as the weight material 35B is placed in the space between the upper and lower flanges of the H-shaped steel forming the beam steel frame 35A within the range excluding the end portion in the longitudinal direction of the beam steel frame 35A. The addition range and the addition state of the weight material 35B with respect to the beam steel frame 35A may be appropriately changed.

（４）上記実施形態では、傾斜大梁３３の側面に取り付けられたガセットプレート３８に対して梁鉄骨３５Ａの端部をボルト３７により接合したが、傾斜大梁３３に対する梁鉄骨３５Ａの接合方法については適宜変更しても構わない。 (4) In the above-described embodiment, the end portion of the beam steel frame 35A is joined to the gusset plate 38 attached to the side surface of the tilted girder 33 by the bolt 37. However, the method of joining the beam steel frame 35A to the tilted girder 33 may be appropriately changed. You can change it.

３１Ａ 床部
３３ 傾斜大梁
３４ 構造梁
３５ 振動抑制梁
３５Ａ 梁鉄骨
３５Ｂ 重量材
３７ ボルト
３８ ガセットプレート
１００ 建築物
Ｇ 競技場
Ｓ 観客席 31A Floor 33 Tilt Large Beam 34 Structural Beam 35 Vibration Suppression Beam 35A Beam Steel Frame 35B Heavy Material 37 Bolt 38 Gusset Plate 100 Building G Stadium S Spectator Seat

Claims (4)

前方の競技場側から後方に向けて上がる方向に延びる左右一対の傾斜大梁と、
当該一対の傾斜大梁間に架設された前後一対の構造梁と、
前記一対の傾斜大梁及び前記一対の構造梁により支持されて上面に観客席が設けられる床部と、を備えた建築物であって、
前記一対の構造梁の間の前後中間部位において前記一対の傾斜大梁間に架設された梁鉄骨を備え、
前記梁鉄骨が、重量を増加するための重量材が付加されることで前記床部の振動を抑制する振動抑制梁として構成されている建築物。 A pair of left and right slanted girders extending in the direction of going up from the stadium side in the front to the rear
A pair of front and rear structural beams erected between the pair of inclined large beams,
A building comprising: a floor portion supported by the pair of slanted girders and the pair of structural beams and provided with a spectator seat on an upper surface,
A beam steel frame installed between the pair of slanted girders at a front-rear intermediate portion between the pair of structural beams,
The building in which the beam steel frame is configured as a vibration suppressing beam that suppresses vibration of the floor by adding a weight material for increasing the weight. 前記傾斜大梁及び前記構造梁が鉄筋コンクリート製である請求項１に記載の建築物。 The building according to claim 1, wherein the inclined girder and the structural beam are made of reinforced concrete. 前記振動抑制梁において、前記梁鉄骨がＨ形鋼で構成されており、当該Ｈ形鋼の上下フランジ間の空間に前記重量材としてのコンクリートが打設されている請求項１又は２に記載の建築物。 The said vibration suppression beam WHEREIN: The said beam steel frame is comprised by H-section steel, and the concrete as the said weight material is poured in the space between the upper and lower flanges of the said H-section steel. Building. 前記振動抑制梁が、前記梁鉄骨の長手方向において端部を除く範囲内に前記重量材を付加して構成されており、
前記梁鉄骨の端部が、前記傾斜大梁に取り付けられているガセットプレートに対してボルト接合されている請求項１〜３の何れか１項に記載の建築物。

The vibration suppressing beam is configured by adding the weight member within a range excluding an end portion in the longitudinal direction of the beam steel frame,
The building according to any one of claims 1 to 3, wherein an end portion of the beam steel frame is bolted to a gusset plate attached to the inclined girder.

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CN112227773A (en) * 2020-09-14 2021-01-15 中国二十冶集团有限公司 Movie theater auditorium shakes structure
CN112502279A (en) * 2020-12-08 2021-03-16 上海金鹿建设(集团)有限公司 Large-span cantilever frame and construction method thereof

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JPH08232366A (en) * 1995-02-28 1996-09-10 Shimizu Corp High damping building and construction method therefor
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JPS59152055U (en) * 1983-03-31 1984-10-12 フドウ建研株式会社 precast concrete berm
JPH0853949A (en) * 1994-08-11 1996-02-27 Fujita Corp Waterproofing method of stand step floor
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CN112227773A (en) * 2020-09-14 2021-01-15 中国二十冶集团有限公司 Movie theater auditorium shakes structure
CN112502279A (en) * 2020-12-08 2021-03-16 上海金鹿建设(集团)有限公司 Large-span cantilever frame and construction method thereof

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