WO2004007991A1 - Dispositif de prevention de chute d'une structure d'isolation de base - Google Patents

Dispositif de prevention de chute d'une structure d'isolation de base Download PDF

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Publication number
WO2004007991A1
WO2004007991A1 PCT/JP2002/007215 JP0207215W WO2004007991A1 WO 2004007991 A1 WO2004007991 A1 WO 2004007991A1 JP 0207215 W JP0207215 W JP 0207215W WO 2004007991 A1 WO2004007991 A1 WO 2004007991A1
Authority
WO
WIPO (PCT)
Prior art keywords
string
seismic isolation
upper structure
fixing means
falling
Prior art date
Application number
PCT/JP2002/007215
Other languages
English (en)
Japanese (ja)
Inventor
Toshio Fujioka
Original Assignee
Tf Sekkei Co., 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
Priority to JP2001021703A priority Critical patent/JP4200660B2/ja
Application filed by Tf Sekkei Co., Ltd. filed Critical Tf Sekkei Co., Ltd.
Priority to AU2002318575A priority patent/AU2002318575A1/en
Priority to PCT/JP2002/007215 priority patent/WO2004007991A1/fr
Publication of WO2004007991A1 publication Critical patent/WO2004007991A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems

Definitions

  • the present invention relates to a seismic isolation structure of a structure or prevention of a bridge girder from falling off.
  • a displacement limiting device using a cord-like body In order to suppress excessive deformation of a base-isolated structure due to an earthquake, a displacement limiting device using a cord-like body is known. Also, a bridge fall prevention device using a PC steel material, a PC cable, or the like is known.
  • the space where the seismic isolation device is installed is limited in height and requires a space for installation.
  • the space where the seismic isolation device is installed is limited in height and requires a space for installation.
  • the fixing of the ends becomes complicated.
  • a problem to be solved by the present invention is that the drop-out prevention device cannot be mounted in a limited space in a small size.
  • the fixing mechanism of PC steel and the like is complicated, and corrosion may occur due to infiltration of rainwater. Disclosure of the invention
  • Claim 1 of the seismic isolation structure fall prevention device (for example, For example, Fig. 1 and Figs. 3 to 7) show the lower structure (3) and the upper structure
  • the seismic isolation structure (1) having a seismic isolation bearing (1) that supports the upper structure (2) in the horizontal direction and supports itself.
  • 2) has at least one string-like body (2 1) that regulates the displacement of the structure when it is displaced by a predetermined amount, and the string-like body (2 1)
  • One fixing means (11 to L6) is provided at one end, and the other fixing means (11 to 16) is provided at the other end of the cord (21).
  • the fixing means (11 to 16) is provided with at least one through means (31, 32, 43) for passing through the cord (21).
  • the string (21) is passed through at least one of the communicating means (31, 32, 43) in a substantially horizontal direction to form a lower structure (3) and an upper structure (2).
  • Form at least one closed loop between (2 1) end of that is connected to freely swing to the substructure was or either interconnected (3) young and rather the upper structure (2).
  • the lower structure side and the upper structure side are connected by the cord and the fixing means, and the lower structure is connected to the lower structure.
  • the displacement between the upper structure and the upper structure reaches a predetermined amount, the structure is tensioned to prevent the structure from falling off.
  • a high-strength fiber rope for the cord it flexibly follows the deformation of the superstructure and does not corrode.
  • a large tensile load can be applied. Can bear.
  • the device for preventing a seismic isolation structure from falling off according to claim 2 (for example, FIGS. 9 and 10) is interposed between a lower structure (3) and an upper structure (2), and In a seismic isolation structure provided with a seismic isolation bearing (1) that supports the body (2) movably in the horizontal direction, when the upper structure (2) is displaced by a predetermined amount, it becomes tensed and the structure It has at least one cord (21) for regulating displacement, and one fixing means (17) is provided at one end of the cord (21). At the other end of the cord-like body (21), other fixing means (17) are provided, respectively, and a cylindrical fixing means is provided.
  • the lower structure side and the upper structure side are connected by the string-like body and the fixing means. Even if the vertical load or the like acting on the seismic bearing exceeds its allowable value and damages the bearing, the string-like body is strained and the structure can be prevented from falling off. One-one- ⁇ blue. In addition, limiting the horizontal displacement between the lower structure and the upper structure to a certain amount can prevent damage to the seismic isolation bearing. Since the fixing means is formed in a cylindrical shape and embedded in the upper and lower structures, a small and large pull-out resistance can be obtained. The use of high-strength fiber caps for the cords allows it to flexibly follow the deformation of the superstructure and not corrode. In addition, by connecting a plurality of strings, a large tensile load can be borne.
  • It has at least one arc-shaped hook (31, 32) provided in (41), and the string (21) is inserted through the opening and hooked.
  • the opening is fixed to the opening (31, 32), and the opening has a curved shape (43) that gradually widens from the inside to the opening.
  • the same effect as in claims 1 and 2 can be obtained, and the cord can smoothly come into contact with the arc-shaped hook. Less damage.
  • the hook can fix the string-like body more securely, and can be manufactured easily, and the fixing means can be smaller.
  • a sliding member (23) is interposed between (31, request 32).
  • the claim:! In addition to obtaining the same effects as in the above-mentioned items 4 to 4, and since a cushioning material is interposed between the cord and the insertion means, it is possible to reduce the impact load applied to the cord and the fixing means. And can be.
  • the fall-prevention device for a base-isolated structure in claim 6 (for example, Fig. 1 Fig. 3 to 10) is the same as the fall-prevention device for a base-isolated structure in any one of claims 1 to 5.
  • the string (21) and the fixing means (11 to 17) cover the lower structure (3) and the upper structure (2) to prevent rainwater from adhering. It has waterproofing means (61) interposed between them.
  • the fall prevention device for a base-isolated structure according to claim 7 is a device for preventing fall of a base-isolated structure according to any one of claims 1 to 6.
  • the state body (21) and the fixing means (11 to 17) have a refractory material (61) which covers them and is interposed between the lower structure and the upper structure. .
  • the cord and the fixing means are made of a bellows made of a fire-resistant material. It has fire resistance because it is covered.
  • FIGS. 1A and 1B show an example of the drop-off prevention device of the present invention.
  • FIG. 1A is a plan sectional view
  • FIG. 1B is a longitudinal sectional view thereof (Example 1)
  • FIG. 1A is a plan sectional view
  • FIG. 1B is a longitudinal sectional view thereof (Example 1)
  • FIG. 1A is a plan sectional view
  • FIG. 1B is a longitudinal sectional view thereof (Example 1)
  • FIGS. 2A and 2B show an application example of the fall-off prevention device of the present invention.
  • FIG. 2A is a plan sectional view
  • FIG. 2B is a longitudinal sectional view thereof (Example 1)
  • FIG. 3 shows another example of the fixing means.
  • (A) is a plan sectional view
  • (b) is a longitudinal sectional view (Example 2)
  • FIG. 4 shows still another example of the fixing means.
  • (A) is a plan sectional view
  • (b) is a longitudinal sectional view
  • FIG. 5 shows still another example of the fixing means
  • (a) is a plan sectional view thereof
  • (b) is a longitudinal sectional view thereof (Example 4)
  • FIG. 6 shows still another example of the fixing means (a) is a plan sectional view thereof, (b) is a longitudinal sectional view thereof (Example 5),
  • FIG. 7 shows still another example of the fixing means (a) is a plan sectional view thereof, (b) is a longitudinal sectional view thereof (Example 6),
  • FIG. 8 is a longitudinal sectional view of an application example of the fall prevention device of the present invention (Embodiment 6).
  • FIG. 9 shows another example of the drop-off prevention device of the present invention.
  • A is a plan sectional view of the position A
  • (b) is a longitudinal sectional view (embodiment 7)
  • FIGS. 10A and 10B show an application example of the fall-off prevention device of the present invention, wherein FIG. 10A is a plan sectional view thereof, and FIG. Concrete example
  • FIG. 1 (a) is a plan sectional view of the present embodiment
  • FIG. 1 (b) is a longitudinal sectional view of the present embodiment, in which a fall prevention device is attached to a structure by a fixing means 11. It shows the state that it was turned on.
  • (A) of FIG. 2 is a plan sectional view in a state where the fall prevention device of the present embodiment is attached to the upper structure 2 and the lower structure 3, and (b) is a longitudinal sectional view at a position A.
  • a seismic isolation bearing 1 is interposed between the fixed structure and the lower structure 3, and the fall-off prevention device is connected to the upper structure 2 and the lower structure 3 via fixing means 11 1.
  • the gap in the floor between the upper structure 2 and the lower structure 3 on the foundation side is closed by a telescopic floor plate 4 so that it can pass through.
  • a fixing means 11 is attached to the upper structure 2 and the lower structure 3 as shown in FIG.
  • a cylindrical hook 31 and a column-shaped hook 32 having an arc shape in plan are fixed to a base plate 41.
  • the hooks 31 and 32 are formed with a plurality of grooves, for example, for hanging a string-shaped body 21 made of a rope.
  • Each of the base plates 41 is fixed to the corresponding upper structure 2 and lower structure 3 by a nut 51 and a bolt 52.
  • the base plate 41 and the hooks 31 and 32 may be metal members such as high-strength brass steel.
  • the hooks 31 and 32 are covered with a cover 42.
  • the cover 42 has an opening through which the string-like body 21 is inserted.
  • the opening provided in the force bar 42 has a curved shape 43 that gradually widens from the inside to the opening, and the string-shaped body 21 has an opening force. It is fixed to the hooks 31 and 32 by passing through, and the upper structure 2 and the lower structure 3 are connected with a certain deflection. This deflection allows a predetermined amount of displacement of the upper structure 2, and the displacement of the upper structure 2 that exceeds a predetermined amount tensions the string-shaped body 21 to limit the displacement.
  • the structure 2 is set so as to prevent the structure 2 from falling off from the lower structure 3.
  • the string-shaped body 21 may be made of a synthetic fiber such as an aramid fiber, a polyamid fiber, a polyester fiber, a polyvinyl alcohol fiber, or the like. It may be made of high-strength fiber such as fiber or glass fiber.
  • a bellows-like protection member 61 in which a string-like body 21 is provided is attached.
  • the fire-resistant material forming the bellows-like protective material 61 is a flexible rock woolen / ceramic fiber blanket / glass cross / fire resistant material. It is composed of a suitable combination of a fire-resistant material such as a waterproof nonwoven fabric and other waterproof skin materials. As a result, the fall prevention device is provided with a dustproof effect, a waterproof effect, and a fireproof performance.
  • the cords 21 are appropriately bundled by a retaining ring 62.
  • the fixing unit 11 in the drop-out preventing device described in the first embodiment is replaced with a fixing unit 12 shown in FIG.
  • two column-shaped hooks 31 are fixed to the base plate 41 along the through direction of the string-shaped body 21, and are laid.
  • the hooks 31 and 32 are not limited to this example, and a plurality of hooks may be attached in a direction perpendicular to the plane of the cord-like body 21 in plan view. other The elements are the same as in the first embodiment, and a description thereof will be omitted.
  • the number of string-like bodies 21 can be easily increased, and a tensile load can be increased.
  • the fixing unit 11 in the drop-out preventing device described in the first embodiment is replaced with a fixing unit 13 shown in FIG.
  • a cylindrical hook 31 is fixed to a base plate 41.
  • the hook 31 is covered with a canopy 44, and the canopy 44 is rotatably attached to the hook 31 by a rotating pin 45 and a bearing 46. I'm afraid.
  • the falling-off prevention device of this example is obtained by replacing the fixing means 13 in the falling-off prevention device described in the third embodiment with fixing means 14 shown in FIG.
  • a semi-cylindrical outer shell hook 33 is rotatably mounted on the outer periphery of the hook 31.
  • the contact surface between the hook 31 and the outer shell hook 33 is made of Teflon or the like so as to reduce friction.
  • the fixing unit 11 in the drop-out preventing device described in the first embodiment is replaced with a fixing unit 15 shown in FIG.
  • a base plate 41 is moored in a groove provided in the lower structure 3, and a bearing 47 is interposed on the lower surface of the base plate 41.
  • the fixing device 11 in the drop-out preventing device described in the first embodiment is replaced with a fixing device 16 shown in FIG.
  • FIG. 8 is a longitudinal sectional view in which the fixing means 16 of the present embodiment is attached to the lower structure 3 and the fixing means 11 of the first embodiment is attached to the upper structure 2.
  • a base plate 41 and a column-shaped hook 31 and column-shaped hooks 32 a, 32, 32 c, and 32 d which are arc-shaped in plan are provided. It is fixed to.
  • the hooks 31, 32 a, 32 b 32 c, and 32 d are provided with a plurality of grooves for hooking a rope-shaped body 21 formed of a loop.
  • the cord 21 inserted from the left side of the paper is inserted through the opening and fixed to the hooks 31 and 32b, and the cord 21 passed through from the right of the paper.
  • the string-like body 21 passed through from the upper side of the paper is fixed to the hooks 31 and 32d through the opening, and is inserted through the lower side of the paper.
  • the shape 21 has a symmetrical configuration.
  • the deformation limit distance of the upper structure 2 and the allowable load of the device can be changed in the front-rear and left-right directions. Different things can be done.
  • FIG. 9A is a plan sectional view at the position A in the present embodiment
  • FIG. 9B is a longitudinal sectional view of the present embodiment, in which the falling-off prevention device is fixed by the fixing means 17.
  • the figure shows the state of attachment to the structure.
  • (A) of FIG. 10 is a plan sectional view of the state in which the fall prevention device of the present embodiment is attached to the upper structure 2 and the lower structure 3, and (b) is a longitudinal sectional view at the position A.
  • a seismic isolation bearing 1 is interposed between the upper structure 2 and the lower structure 3 on the fixed side.
  • the lower structure 3 is connected to the upper structure 2 and the lower structure 3 through the upper structure 2.
  • the area around the base-isolated bearing 1 is covered with a refractory member 5.
  • a cylindrical hook 31 and a column-shaped hook 32 having an arc-shaped cross section are fixed inside the cylindrical fixing means 17. H
  • the hooks 31 and 32 are formed with a plurality of grooves for hanging the rope-shaped body 21 composed of ropes.
  • the cylindrical fixing means 17 is fixed to the upper structure 2 or the lower structure 3 by a nut 51 and a bolt 52.
  • the opening of the fixing means 17 has a curved shape 43 that gradually widens according to the internal force and the opening.
  • the string-like body 21 is inserted through the opening and is fixed to the hooks 31 and 32, and connects the upper structure 2 and the lower structure 3 with a certain deflection. .
  • This deflection allows a certain amount of displacement of the upper structure 2, limits the displacement of the upper structure 2 by more than a certain amount, and prevents the upper structure 2 from falling off from the lower structure 3. Is set as follows.
  • a bellows-like protective material 61 is attached to the opening having the curved shape 43.
  • the fire-resistant material constituting the bellows-like protective material 61 is made of a flexible rock urele ceramic ceramic blanket glass cross, It is composed of a suitable combination of fire-resistant materials such as fire-resistant non-woven fabric and other waterproof skin materials. As a result, the fall prevention device is provided with a dustproof effect, a waterproof effect, and a fireproof performance.
  • the string-shaped members 21 are appropriately bundled by a retaining ring 62.
  • the falling-off prevention device of the present invention is not limited to the above embodiment, and various modifications and design changes may be made without departing from the spirit of the present invention.
  • the fall-off prevention device may be configured to connect a plurality of upper structures 2 provided on the lower structure 3. Also, it may be applied to structures having deformation means similar to seismic isolation bearing 1.
  • the string-shaped body 21 may be connected to the upper structure 2 and the lower structure 3 by a spring or a damper as appropriate to prevent wind sway.
  • the bellows-shaped protective material 61 may be made of a material having elasticity to have the same effect as a spring, or may be made of a viscoelastic material such as lead.
  • the fixing means 11 and the like are fixed to the upper structure 2 and the lower structure 3 by the nuts 51 and the bolts 52, but are not limited thereto.
  • the base plate 4 1 is fixed to the lower structure 3, and has a surface perpendicular to the direction of passage of the string-like body 21 and has an opening for inserting the string-like body 21. It may be fixed so that the cover 14 and the cover 14 come into contact with each other in a movable state.
  • the support plate may be formed in a box shape, and a cushioning material may be provided on the contact surface between the support plate and the base plate 41 and the cover 42.
  • the cross-sectional shape of the cylindrical fixing means 17 in plan view is not limited to a circle, but may be a square, a triangle, a polygon, an ellipse, or the like. Further, a screw may be cut around the outer periphery of the cylindrical fixing means 17 and fixed to a nut fixed to the upper and lower structures.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Foundations (AREA)
  • Bridges Or Land Bridges (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention concerne un dispositif de prévention de chute d'une structure d'isolation de base portée par un support (1) d'isolation de base entre une structure inférieure (3) et une structure supérieure (2), dans lequel des corps en forme de corde (21), destinés à limiter le déplacement de la structure supérieure par étirement lors d'un déplacement d'une quantité spécifiée, sont fixés à la structure supérieure (2), des moyens de fixation (11) équipent les parties d'extrémité des corps en forme de corde (21), ces corps (21) étant insérés dans les moyens de fixation (11) généralement dans la direction horizontale et fixés à des crochets arqués, les parties d'extrémité d'orifice d'insertion étant de formes incurvées divergeant graduellement des parties intérieures vers les parties ouvertes.
PCT/JP2002/007215 2001-01-18 2002-07-16 Dispositif de prevention de chute d'une structure d'isolation de base WO2004007991A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2001021703A JP4200660B2 (ja) 2001-01-18 2001-01-30 免震構造物の脱落防止装置
AU2002318575A AU2002318575A1 (en) 2002-07-16 2002-07-16 Fallout prevention device of base isolation structure
PCT/JP2002/007215 WO2004007991A1 (fr) 2001-01-18 2002-07-16 Dispositif de prevention de chute d'une structure d'isolation de base

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001010040 2001-01-18
JP2001021703A JP4200660B2 (ja) 2001-01-18 2001-01-30 免震構造物の脱落防止装置
PCT/JP2002/007215 WO2004007991A1 (fr) 2001-01-18 2002-07-16 Dispositif de prevention de chute d'une structure d'isolation de base

Publications (1)

Publication Number Publication Date
WO2004007991A1 true WO2004007991A1 (fr) 2004-01-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/007215 WO2004007991A1 (fr) 2001-01-18 2002-07-16 Dispositif de prevention de chute d'une structure d'isolation de base

Country Status (2)

Country Link
JP (1) JP4200660B2 (fr)
WO (1) WO2004007991A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20130026A1 (it) * 2013-04-12 2013-07-12 Innocenzo Becci Connessione sismica scorrevole dissipativa ad assetto dinamico adattativo auto compensato
JP2014111953A (ja) * 2012-12-05 2014-06-19 Ebara Jitsugyo Co Ltd 防振架台

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4200660B2 (ja) * 2001-01-18 2008-12-24 敏雄 藤岡 免震構造物の脱落防止装置
JP2006249842A (ja) * 2005-03-11 2006-09-21 Sho Bond Constr Co Ltd 連結バンド
JP4744307B2 (ja) * 2006-01-19 2011-08-10 濱中ナット株式会社 機械的特性の付与構造
JP4719625B2 (ja) * 2006-06-06 2011-07-06 ショーボンド建設株式会社 橋梁落橋防止装置の設置方法
JP2008174912A (ja) * 2007-01-16 2008-07-31 Bridgestone Corp 落橋防止装置
JP5317359B2 (ja) * 2009-06-09 2013-10-16 東京ファブリック工業株式会社 跨座式モノレール用軌道桁の落下防止装置
KR102386263B1 (ko) * 2019-12-23 2022-04-13 김남영 로프 기초를 이용한 면진 구조
CN112144374A (zh) * 2020-09-16 2020-12-29 同济大学 一种自复位环簧拉索缓冲系统、支座和桥梁

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10152810A (ja) * 1996-11-26 1998-06-09 Shinko Kosen Kogyo Kk 連結ケーブル
JP2001200890A (ja) * 2000-01-18 2001-07-27 Bando Chem Ind Ltd 免震台
JP2001303516A (ja) * 2000-04-19 2001-10-31 Tokai Rubber Ind Ltd 橋梁における移動制限装置
JP2002081497A (ja) * 2000-06-19 2002-03-22 Toshio Fujioka 免震構造物の変位限定装置
JP2002097607A (ja) * 2000-09-22 2002-04-02 Sho Bond Constr Co Ltd 緩衝用チェーン及び桁落下防止装置
JP2002286090A (ja) * 2001-01-18 2002-10-03 Toshio Fujioka 免震構造物の脱落防止装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10152810A (ja) * 1996-11-26 1998-06-09 Shinko Kosen Kogyo Kk 連結ケーブル
JP2001200890A (ja) * 2000-01-18 2001-07-27 Bando Chem Ind Ltd 免震台
JP2001303516A (ja) * 2000-04-19 2001-10-31 Tokai Rubber Ind Ltd 橋梁における移動制限装置
JP2002081497A (ja) * 2000-06-19 2002-03-22 Toshio Fujioka 免震構造物の変位限定装置
JP2002097607A (ja) * 2000-09-22 2002-04-02 Sho Bond Constr Co Ltd 緩衝用チェーン及び桁落下防止装置
JP2002286090A (ja) * 2001-01-18 2002-10-03 Toshio Fujioka 免震構造物の脱落防止装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014111953A (ja) * 2012-12-05 2014-06-19 Ebara Jitsugyo Co Ltd 防振架台
ITRE20130026A1 (it) * 2013-04-12 2013-07-12 Innocenzo Becci Connessione sismica scorrevole dissipativa ad assetto dinamico adattativo auto compensato
WO2014166849A2 (fr) 2013-04-12 2014-10-16 Becci Innocenzo Dispositif de liaison parasismique pour liaison d'un panneau à une poutre
WO2014166849A3 (fr) * 2013-04-12 2015-04-09 Becci Innocenzo Dispositif de liaison parasismique pour liaison d'un panneau à une poutre
CN105209698A (zh) * 2013-04-12 2015-12-30 I·贝奇 用于将面板连接到梁的抗震连接装置
CN105209698B (zh) * 2013-04-12 2017-07-04 I·贝奇 用于将面板连接到梁的抗震连接装置

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Publication number Publication date
JP2002286090A (ja) 2002-10-03
JP4200660B2 (ja) 2008-12-24

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