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JP3670767B2 - Seismic structure of open / close roof - Google Patents
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JP3670767B2 - Seismic structure of open / close roof - Google Patents

Seismic structure of open / close roof Download PDF

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Publication number
JP3670767B2
JP3670767B2 JP19883696A JP19883696A JP3670767B2 JP 3670767 B2 JP3670767 B2 JP 3670767B2 JP 19883696 A JP19883696 A JP 19883696A JP 19883696 A JP19883696 A JP 19883696A JP 3670767 B2 JP3670767 B2 JP 3670767B2
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JP
Japan
Prior art keywords
open
earthquake
carriage
horizontal guide
drive carriage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP19883696A
Other languages
Japanese (ja)
Other versions
JPH1037373A (en
Inventor
良秀 村瀬
裕之 布山
和利 林
泰藏 篠田
一樹 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP19883696A priority Critical patent/JP3670767B2/en
Publication of JPH1037373A publication Critical patent/JPH1037373A/en
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Publication of JP3670767B2 publication Critical patent/JP3670767B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は開閉屋根の耐震構造に関し、駆動台車によって駆動される多目的球技場の収納形開閉屋根等の耐震構造に適用して有用なものである。
【0002】
【従来の技術】
従来の多目的球場の収納形開閉屋根の地震対策は、開閉屋根及びこの開閉屋根を駆動する駆動台車の剛性を高めることのみであった。
【0003】
【発明が解決しようとする課題】
しかしながら、駆動台車に大地震等の大きな力が加わったときに開閉屋根及び駆動台車の損傷を押えるために、上記の如く開閉屋根及び駆動台車の剛性を高めると、コストがかかり、工期も長い。
【0004】
また、地震力を吸収するためには上部鉄骨構造を塑性化することが一般的であるが、そうすると構造が非常に複雑である。耐震設計は必要不可欠であるが、耐震構造は簡素なものにすることが望まれる。
【0005】
従って本発明は上記従来技術に鑑み、駆動台車に大地震等の大きな力が加わったときに開閉屋根及び駆動台車の損傷を押さえることができ、しかも構造が簡素な開閉屋根の耐震構造を提供することを課題とする。
【0006】
【課題を解決するための手段】
上記課題を解決する本発明の開閉屋根の耐震構造は、駆動台車によって駆動される開閉屋根の耐震構造であって、前記駆動台車の中央下部にはブラケットを介して水平ガイドローラが取付けられ、前記水平ガイドローラは固定部に敷設されたレールに沿うようにして前記固定部に設けられた溝内に位置し、前記駆動台車が前記レールに沿って走行移動するように案内し、且つ、前記駆動台車の中央下部には前記溝の底に設けられた孔に嵌合されるロックピンが取り付けられた構成において、前記水平ガイドローラを支持する前記ブラケットと前記ロックピンの材質、前記駆動台車に加わる大地震等の一定以上の大きな力によって塑性化する極低降伏点鋼としたことを特徴とする。
【0007】
従って、上記構成の開閉屋根の耐震構造によれば、駆動台車に大地震等の一定以上の力が加わると、駆動台車の水平方向の移動を阻止する水平ガイドローラのブラケットや、ロックピンが塑性化して駆動台車が水平方向に移動する。その結果、履歴エネルギーが吸収されある程度大きな力が緩和されてある一定以上の力が駆動台車や開閉屋根に伝わらなくなり、これらの損傷が押えられる。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づき詳細に説明する。
【0009】
図1は本発明の実施の形態に係る耐震構造を有する多目的球技場の開閉屋根の全体概要を示す斜視図、図2は図1に示す開閉屋根の駆動台車の拡大平面図、図3は図2に示す駆動台車の水平ガイドローラ部の概要図、図4は図2に示す駆動台車のロックピン部の概要図である。
【0010】
図1に示すように、多目的球技場の開閉屋根5の両側下端部には、それぞれ複数の駆動台車1が設けられており、これらの駆動台車1がレール2上を走行移動する。
【0011】
図2及び図3に示すように、駆動台車1の中央下部には、ブラケット4を介して水平ガイドローラ3が取付けられている。これらの水平ガイドローラ3は、固定部8に敷設されたレール2に沿うようにして固定部8に設けられた溝9内に位置しており、駆動台車1がレール2に沿って走行移動するよう案内する。
【0012】
また、図2及び図4に示すように、駆動台車1の中央下部には、ブッシュ7を介してロックピン6が取り付けられている。これらのロックピン6は溝9の底に設けられた孔9aに嵌合される。
【0013】
そして、水平ガイドローラ3を支持するブラケット4とロックピン6の材質を極低降伏点鋼とし、大地震等の大きな力が駆動台車1に加わったときに、ブラケット4とロックピン6とが塑性化して駆動台車1がレール2上で水平方向に可動となるようにしてある。
【0014】
即ち、ブラケット4とロックピン6の材料として、降伏点230N/mm2 、引張強さ300N/mm2 程度の鋼材を使用し、設計地震を超える地震が駆動台車1に作用した場合に、これらのブラケット4とロックピン6とを塑性化させてエネルギーを吸収させる。このことにより、設計地震の入力の約2倍の大きさの巨大地震が作用しても、地震の入力が1.3倍程度に低減されることが解析によって得られており、大きな効果が得られる。なお、設計においては地震の方向、大きさによりブラケット4、ロックピン6を組合わせて設計を行う。
【0015】
従って、上記構成の耐震構造によれば、駆動台車1に大地震等の一定以上の力が加わると、水平ガイドローラ3を支持するブラケット4とロックピン6とが塑性化して駆動台車1が水平方向に移動し、これによりエネルギーが吸収されある程度大きな力が緩和されてある一定以上の力が上部の駆動台車1や開閉屋根5に伝わらなくなる。このため駆動台車1や開閉屋根5の損傷が押えられて被害を少なくすることができる。しかも、構成が複雑にはならず、低コストで、工期も短くなる。また、地震によって破壊された水平ガイドローラ3、ブラケット4、ロックピン6及びブッシュ7は、地震後に簡単に交換することができる。
【0016】
なお、上記では駆動台車1に設けたブラケット4やロックピン6の材質を極低降伏点鋼としたが、これらに限定するものではなく、駆動台車1の水平方向の移動を阻止する他の部材があれば、その部材の材質を極低降伏点鋼としてもよい。例えば固定部8側に駆動台車1をロックする部材がある場合には、この部材の材質を極低降伏点鋼としてもよい。
【0017】
【発明の効果】
以上発明の実施の形態と共に具体的に説明したように、本発明の開閉屋根の耐震構造によれば、駆動台車に大地震等の一定以上の力が加わると、駆動台車の水平方向の移動を阻止する水平ガイドローラのブラケットや、ロックピンが塑性化して駆動台車が水平方向に移動することにより、エネルギーが吸収されある程度大きな力が緩和されてある一定以上の力が駆動台車や開閉屋根に伝わらなくなるため、これらの損傷が押えられて被害を少なくすることができる。しかも、構成が複雑にはならず、低コストで、工期も短くなる。
【図面の簡単な説明】
【図1】本発明の実施の形態に係る耐震構造を有する多目的球技場の開閉屋根の全体概要を示す斜視図である。
【図2】図1に示す開閉屋根の駆動台車の拡大平面図である。
【図3】図2に示す駆動台車の水平ガイドローラ部の概要図である。
【図4】図2に示す駆動台車のロックピン部の概要図である。
【符号の説明】
1 駆動台車
2 レール
3 水平ガイドローラ
4 ブラケット
5 開閉屋根
6 ロックピン
7 ブッシュ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an earthquake-resistant structure for an open / close roof, and is useful when applied to an earthquake-resistant structure such as a storage-type open / close roof of a multipurpose ball game field driven by a driving carriage.
[0002]
[Prior art]
The conventional earthquake countermeasures for the storage type open / close roof of the multipurpose stadium were only to increase the rigidity of the open / close roof and the driving carriage that drives the open / close roof.
[0003]
[Problems to be solved by the invention]
However, increasing the rigidity of the opening / closing roof and the driving carriage as described above in order to suppress damage to the opening / closing roof and the driving carriage when a large force such as a large earthquake is applied to the driving carriage causes cost and a long construction period.
[0004]
In order to absorb the seismic force, it is common to plasticize the upper steel structure, but the structure is very complicated. Although seismic design is indispensable, it is desirable to make the seismic structure simple.
[0005]
Accordingly, the present invention provides an earthquake-resistant structure for an open / close roof that can suppress damage to the open / close roof and the drive bogie when a large force such as a large earthquake is applied to the drive bogie, and has a simple structure. This is the issue.
[0006]
[Means for Solving the Problems]
The seismic structure of the open / close roof of the present invention that solves the above problems is an earthquake resistant structure of the open / close roof driven by a drive carriage, and a horizontal guide roller is attached to the lower center of the drive carriage via a bracket, A horizontal guide roller is positioned in a groove provided in the fixed portion so as to follow a rail laid on the fixed portion, guides the drive carriage to travel along the rail, and drives the drive In a configuration in which a lock pin that fits into a hole provided in the bottom of the groove is attached to the center lower portion of the carriage, the bracket and the lock pin that support the horizontal guide roller are made of a material for the drive carriage. It is characterized by an extremely low yield point steel that is plasticized by a large force that exceeds a certain level such as a large earthquake.
[0007]
Therefore, according to the seismic structure of opening and closing the roof of the structure, a certain force or greater large earthquake or the like is applied to the driving carriage, brackets and the horizontal guide rollers you prevent horizontal movement of the drive carriage, Rokkupi down There drive carriage moves horizontally and plasticized. As a result, the hysteresis energy is absorbed and the large force is relaxed to some extent, and a certain force or more is not transmitted to the drive carriage or the open / close roof, and these damages are suppressed.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0009]
FIG. 1 is a perspective view showing an overall outline of an open / close roof of a multipurpose ball game field having a seismic structure according to an embodiment of the present invention, FIG. 2 is an enlarged plan view of a drive carriage of the open / close roof shown in FIG. FIG. 4 is a schematic diagram of a horizontal guide roller portion of the drive cart shown in FIG. 2, and FIG.
[0010]
As shown in FIG. 1, a plurality of drive carts 1 are provided at lower ends of both sides of the open / close roof 5 of the multipurpose ball game field, and these drive carts 1 travel on the rails 2.
[0011]
As shown in FIGS. 2 and 3, a horizontal guide roller 3 is attached to the lower center portion of the drive carriage 1 via a bracket 4. These horizontal guide rollers 3 are located in a groove 9 provided in the fixed portion 8 along the rail 2 laid on the fixed portion 8, and the drive carriage 1 travels along the rail 2. I will guide you.
[0012]
As shown in FIGS. 2 and 4, a lock pin 6 is attached to the lower part of the center of the drive carriage 1 via a bush 7. These lock pins 6 are fitted into holes 9 a provided at the bottom of the groove 9.
[0013]
The bracket 4 and the lock pin 6 that support the horizontal guide roller 3 are made of extremely low yield point steel, and when a large force such as a large earthquake is applied to the drive carriage 1, the bracket 4 and the lock pin 6 are plastic. Thus, the drive carriage 1 is movable on the rail 2 in the horizontal direction.
[0014]
That is, as a material of the bracket 4 and the lock pin 6, a steel material having a yield point of 230 N / mm 2 and a tensile strength of about 300 N / mm 2 is used. The bracket 4 and the lock pin 6 are plasticized to absorb energy. As a result, even if a huge earthquake about twice as large as the input of the design earthquake acts, the analysis shows that the input of the earthquake is reduced to about 1.3 times. It is done. The design is performed by combining the bracket 4 and the lock pin 6 according to the direction and magnitude of the earthquake.
[0015]
Therefore, according to the earthquake-resistant structure having the above-described structure, when a certain force such as a large earthquake is applied to the drive carriage 1, the bracket 4 and the lock pin 6 that support the horizontal guide roller 3 are plasticized so that the drive carriage 1 is horizontal. It moves in the direction, and energy is absorbed and a large force is relieved to some extent, so that a certain force or more is not transmitted to the upper drive carriage 1 and the openable roof 5. For this reason, damage to the drive carriage 1 and the open / close roof 5 is suppressed, and damage can be reduced. Moreover, the configuration is not complicated, the cost is low, and the construction period is shortened. Moreover, the horizontal guide roller 3, the bracket 4, the lock pin 6, and the bush 7 destroyed by the earthquake can be easily replaced after the earthquake.
[0016]
In the above description, the material of the bracket 4 and the lock pin 6 provided on the drive carriage 1 is an extremely low yield point steel. However, the present invention is not limited thereto, and other members that prevent the drive carriage 1 from moving in the horizontal direction. If there is, the material of the member may be extremely low yield point steel. For example, when there is a member that locks the drive carriage 1 on the fixed portion 8 side, the material of this member may be extremely low yield point steel.
[0017]
【The invention's effect】
As specifically described above with the embodiment of the present invention, according to the earthquake-resistant structure of the open / close roof of the present invention, when a force exceeding a certain level such as a large earthquake is applied to the drive carriage, the drive carriage is moved in the horizontal direction. bracket or you blocking horizontal guide rollers, by Rokkupi emissions is plasticized to drive carriage moves horizontally, energy absorbed large force above a certain force that is being relaxed and drive carriage to some extent open and close the roof This damage is suppressed and the damage can be reduced. Moreover, the configuration is not complicated, the cost is low, and the construction period is shortened.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall outline of an open / close roof of a multipurpose ball game field having an earthquake-resistant structure according to an embodiment of the present invention.
FIG. 2 is an enlarged plan view of a driving cart with an open / close roof shown in FIG.
3 is a schematic diagram of a horizontal guide roller portion of the drive carriage shown in FIG.
4 is a schematic diagram of a lock pin portion of the drive carriage shown in FIG. 2. FIG.
[Explanation of symbols]
1 Drive Cart 2 Rail 3 Horizontal Guide Roller 4 Bracket 5 Opening and Closing Roof 6 Lock Pin 7 Bush

Claims (1)

駆動台車によって駆動される開閉屋根の耐震構造であって、
前記駆動台車の中央下部にはブラケットを介して水平ガイドローラが取付けられ、前記水平ガイドローラは固定部に敷設されたレールに沿うようにして前記固定部に設けられた溝内に位置し、前記駆動台車が前記レールに沿って走行移動するように案内し、且つ、前記駆動台車の中央下部には前記溝の底に設けられた孔に嵌合されるロックピンが取り付けられた構成において、前記水平ガイドローラを支持する前記ブラケットと前記ロックピンの材質、前記駆動台車に加わる大地震等の一定以上の大きな力によって塑性化する極低降伏点鋼としたことを特徴とする開閉屋根の耐震構造
An earthquake-resistant structure of an open / close roof driven by a drive carriage,
A horizontal guide roller is attached to a lower center portion of the drive carriage via a bracket, and the horizontal guide roller is located in a groove provided in the fixed portion so as to follow a rail laid on the fixed portion. In a configuration in which the driving carriage is guided to travel along the rail, and a lock pin fitted to a hole provided in a bottom of the groove is attached to a lower center portion of the driving carriage. the material of said bracket and said locking pin for supporting the horizontal guide rollers, seismic closing roof, characterized in that a very low yield point steel plastic by a large force than a certain large earthquake or the like applied to the driving carriage Structure .
JP19883696A 1996-07-29 1996-07-29 Seismic structure of open / close roof Expired - Lifetime JP3670767B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19883696A JP3670767B2 (en) 1996-07-29 1996-07-29 Seismic structure of open / close roof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19883696A JP3670767B2 (en) 1996-07-29 1996-07-29 Seismic structure of open / close roof

Publications (2)

Publication Number Publication Date
JPH1037373A JPH1037373A (en) 1998-02-10
JP3670767B2 true JP3670767B2 (en) 2005-07-13

Family

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Application Number Title Priority Date Filing Date
JP19883696A Expired - Lifetime JP3670767B2 (en) 1996-07-29 1996-07-29 Seismic structure of open / close roof

Country Status (1)

Country Link
JP (1) JP3670767B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7121581B2 (en) * 2018-08-07 2022-08-18 清水建設株式会社 Movable roof trolley

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