WO2013051702A1 - Dispositif support à isolation sismique destiné à un pont roulant - Google Patents

Dispositif support à isolation sismique destiné à un pont roulant Download PDF

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Publication number
WO2013051702A1
WO2013051702A1 PCT/JP2012/075988 JP2012075988W WO2013051702A1 WO 2013051702 A1 WO2013051702 A1 WO 2013051702A1 JP 2012075988 W JP2012075988 W JP 2012075988W WO 2013051702 A1 WO2013051702 A1 WO 2013051702A1
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WIPO (PCT)
Prior art keywords
flange portions
seismic isolation
elastic
lower flange
crane
Prior art date
Application number
PCT/JP2012/075988
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English (en)
Japanese (ja)
Inventor
浩祐 岩本
佐藤　祐二
宏次 谷田
齊藤　修
英聡 酒井
Original Assignee
Ｉｈｉ運搬機械株式会社
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Publication of WO2013051702A1 publication Critical patent/WO2013051702A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C5/00—Base supporting structures with legs

Definitions

  • the present invention relates to a seismic isolation support device for a traveling crane.
  • This application claims priority based on Japanese Patent Application No. 2011-2222048 filed in Japan on October 6, 2011, the contents of which are incorporated herein by reference.
  • a container crane which is an example of a traveling crane and is used in a harbor or the like, has a crane body in which support legs are formed in a gate shape.
  • the crane body travels along the rail on the quay by means of wheels (traveling devices) provided at the lower support legs at the four corners.
  • an excitation force in a direction orthogonal to the traveling direction of the traveling crane acts on the crane body as an external force.
  • the crane body has flexibility, the crane body is flexible even if a small-scale or medium-scale earthquake occurs and an excitation force acts in a direction perpendicular to the traveling direction. It can be deformed to absorb the excitation force, and is less likely to cause problems with the traveling crane.
  • Patent Documents 1 and 2 The seismic isolation structure for coping with this problem is disclosed in Patent Documents 1 and 2 below.
  • the support legs of the traveling crane are provided with upper and lower flange portions that are divided into upper and lower portions and can be connected to each other, on the opposing surfaces of these upper and lower flange portions, A contact surface having a predetermined contact width in the left-right direction perpendicular to the crane traveling direction and transmitting a load in the vertical direction is formed. Further, a gap is formed outside the both end portions of the contact surface in the left-right direction, and both end portions of the upper and lower flange portions where the gap is formed are connected vertically by a connecting tool via an elastic material. .
  • a trigger is formed by the contact surface, the gap, and the elastic material.
  • the contact surfaces can be kept in contact with each other, so that the support legs are held in a fixed state.
  • the upper and lower support legs are bent against the pre-compression force and pre-tension force of the elastic material, thereby preventing the support legs from being damaged.
  • the flanges opened by bending of the support legs are always urged in the closing direction by the restoring force of the elastic material, so that they are bent when the earthquake stops. The supported legs are restored to the normal fixed state.
  • the present invention has been made in view of the above-described conventional problems.
  • the support leg can be bent when a large-scale earthquake occurs, the seismic isolation cycle can be extended with a simple configuration, and the response acceleration of the crane body can be reduced.
  • a seismic isolation support device for a traveling crane is divided into upper and lower support legs of a crane main body and can be connected to each other, and upper and lower flange portions.
  • a seismic isolation structure having a connecting tool that connects the top and bottom with an elastic material. Abutting surfaces that contact each other with a contact width in the width direction intersecting the crane traveling direction and transmit a load in the vertical direction are formed on the opposing surfaces of the upper and lower flange portions, respectively.
  • a gap that allows the inclination of the flange portion is formed between the upper and lower flange portions on the outer sides of both end portions in the width direction of the contact surface.
  • An elastic-plastic brace for connecting the upper and lower flange portions up and down is provided.
  • the elastic-plastic brace is a center position in the width direction or the center position of the upper and lower flange portions. With respect to the width direction.
  • the connector is a center position in the width direction of the upper and lower flange portions or the It arrange
  • a vertical direction is provided at an end of the contact surface in the width direction.
  • a fulcrum pin that supports the load and serves as a fulcrum for the inclination of the upper and lower flange portions is provided.
  • the support leg can be held with high support rigidity during normal operation, and the support leg can be bent when a large-scale earthquake occurs.
  • the seismic isolation effect can be enhanced by extending the base isolation cycle with a simple configuration.
  • the response acceleration can be reduced by suppressing the contact surface from contacting with an impact force.
  • FIG. 2B is a plan view taken along line IIB-IIB in FIG. 2A. It is a side view of an elastic-plastic brace.
  • FIG. 3B is an arrow view taken along line IIIB-IIIB in FIG. 3A. It is a front view which shows the state which the support leg of FIG. 2A bent. It is a top view which shows the 1st modification of one Embodiment of this invention. It is a top view which shows the 2nd modification of one Embodiment of this invention.
  • FIG. 1 shows a crane body 1 constituting at least a part of a traveling crane (not shown) used in a harbor portion.
  • the crane body 1 includes a horizontal member 2, a sea-side support leg 3 and a land-side support leg 4 that are integrally fixed by the horizontal member 2.
  • the horizontal member 2, the sea-side support leg 3, and the land-side support leg 4 form a gate-shaped leg structure.
  • the wheels 5 provided at the lower ends of the sea side support legs 3 and the land side support legs 4 are configured to be able to travel along the sea side rails 6 and the land side rails 7 on the quay. That is, the crane main body 1 is configured to be movable in a direction perpendicular to a plane including the gate-shaped leg structure (direction perpendicular to the paper surface of FIG. 1).
  • the seismic isolation support device 100 is provided on the upper part of each of the sea side support legs 3 and the land side support legs 4.
  • the base isolation support device 100 includes a base isolation structure 200 and an elastic-plastic brace 300.
  • the sea-side support leg 3 includes an upper member 3a and a lower member 3b that are divided vertically
  • the land-side support leg 4 includes an upper member 4a and a lower member 4b that are divided vertically.
  • the seismic isolation structure 200 is provided in each connection part of upper member 3a, 4a and lower member 3b, 4b, respectively.
  • Each seismic isolation structure 200 is divided into upper and lower parts and can be connected to upper and lower flange parts 8 and 9, and a connecting tool that vertically connects the upper and lower flange parts 8 and 9 via an elastic material 13 to be described later. 14.
  • the upper and lower flange portions 8 and 9 are formed so as to protrude outward from the periphery of the support legs 3 and 4.
  • the opposing surfaces of the upper and lower flange portions 8 and 9 have a predetermined contact width L in the left-right direction (width direction) orthogonal to the crane traveling direction (direction perpendicular to the paper surface).
  • Horizontal contact surfaces 10 are respectively formed.
  • the contact surfaces 10 on the opposing surfaces of the upper and lower flange portions 8 and 9 are in contact with each other.
  • the contact surface 10 is configured to be able to transmit the load of the upper members 3a, 4a, etc., to the lower members 3b, 4b in the vertical direction (the vertical direction of the paper).
  • gaps 11 and 12 that allow the flange portion 8 or 9 to be inclined are formed between the upper and lower flange portions 8 and 9 outside the both ends of the contact surface 10 in the left-right direction. Accordingly, both end portions of the contact surface 10 in the left-right direction can be fulcrums when the flange portions 8 or 9 are inclined.
  • the connecting tool 14 connects the both ends in the left-right direction in which the gaps 11 and 12 in the flange portions 8 and 9 are formed via the elastic material 13 up and down.
  • the elastic member 13 shown in FIGS. 2A and 2B has a configuration in which spring elements 13s such as a plurality of disc springs are fastened by a connector 14.
  • the resilience strength (spring constant) of the elastic member 13 and the tightening strength by the coupler 14 are determined so as to obtain a predetermined precompression force in accordance with the magnitude of the assumed earthquake.
  • the cross-sectional shape in the horizontal direction of the support legs 3 and 4 of the large crane main body 1 is generally a rectangular shape as shown in FIG. 2B.
  • the outer elastic member 13A and the inner elastic member 13B are arranged in a row (in a row in the crane traveling direction) so as to sandwich the left and right side plates 15 of the support legs 3 and 4, respectively.
  • the connector 14 is disposed at a position that is symmetrical in the left-right direction with respect to the center position in the left-right direction of the upper and lower flange portions 8, 9.
  • the contact surface 10 of the flange portions 8 and 9 is formed so as to be located at the center between the left and right side plates 15 and 15. Further, the gaps 11 and 12 formed on both sides of the contact surface 10 in the left-right direction are formed by providing an inclined surface 16 on the upper surface of the lower flange portion 9 as shown in FIGS. 1 and 2A. Forming.
  • the inclination angle ⁇ of the inclined surface 16 is determined from the magnitude of the assumed earthquake and the length of the lower members 3b, 4b of the support legs 3, 4.
  • the gaps 11 and 12 may be formed by providing inclined surfaces on the lower surface of the upper flange portion 8, and inclined surfaces on both the lower surface of the upper flange portion 8 and the upper surface of the lower flange portion 9. You may form by providing.
  • the gaps 11 and 12 may be parallel gaps formed between the upper and lower flange portions 8 and 9 in addition to the inclined surfaces. That is, the lower surface and the upper surface of the upper and lower flange portions 8 and 9 forming the gaps 11 and 12 may be formed in parallel to each other.
  • fulcrum pins 17, 18 extending in the front-rear direction (crane traveling direction) along the both end portions are provided.
  • the fulcrum pins 17 and 18 are configured to transmit the load of the upper members 3a and 4a to the lower members 3b and 4b and serve as fulcrums when the upper and lower flange portions 8 and 9 are inclined and opened. .
  • the load of the upper members 3a and 4a is transmitted to the lower members 3b and 4b by the contact surface 10, and the flanges with both end portions in the left-right direction of the contact surface 10 as fulcrums.
  • You may comprise so that the parts 8 and 9 may incline.
  • the seismic isolation structure 200 is formed by the contact surfaces 10 and the gaps 11 and 12 provided in the flange portions 8 and 9, the elastic material 13 and the coupling tool 14, and the fulcrum pins 17 and 18.
  • the elastic member 13 is configured by the spring element 13s such as a pre-compressed disc spring
  • a pre-compressed compression spring or a pre-compressed elastic rubber may be used as the elastic member.
  • an elastic-plastic brace 300 configured to connect the flange portions 8 and 9 vertically is provided at the center position of the upper and lower flange portions 8 and 9 in the left-right direction. It has been.
  • An example of the elastoplastic brace 300 includes a steel plate 19 and a buckling restraint 21 as shown in FIGS. 3A and 3B.
  • the steel plate 19 is formed of an elastoplastic history steel material having a yield point set lower than that of the steel material constituting the crane body 1 (support legs 3 and 4) of FIG. 1, and is assembled so as to have a cross shape when viewed from the vertical direction. In addition, it is configured to extend in the vertical direction.
  • the buckling restraining material 21 is provided so as to surround an intermediate portion in the length direction of the steel plate 19 assembled in a cross shape, and the inside thereof is filled with a mortar 20 for buckling prevention.
  • the elastoplastic hysteresis steel material is a steel material that is elastically deformed in a range where the displacement is small and plastically deforms when the displacement exceeds a predetermined value.
  • the steel plate 19 is formed with a bolt hole 24A into which a fixing bolt 24 described later is inserted.
  • 3A and 3B are arranged so as to penetrate through the openings 22 formed in the upper and lower flange portions 8 and 9 in FIG. 2A.
  • the upper end of the elastoplastic brace 300 is fixed to a fixing member 23 a provided on the upper surface of the upper flange portion 8 with bolts 24, and the lower end of the elastoplastic brace 300 is fixed to the lower surface of the lower flange portion 9. It is fixed to the member 23b with bolts 24.
  • the elastoplastic brace 300 has a center position in the left-right direction inside the fulcrum pins 17 and 18 that set the contact width L (see FIG. 2A) of the flange portions 8 and 9. And it is provided in one place of the center position (up-down center position of FIG. 2B) in a crane traveling direction. Note that a plurality of elastoplastic braces 300 may be provided at the center positions of the flange portions 8 and 9 in the left-right direction as shown by the broken lines in FIG. 2B.
  • a plurality of elastoplastic braces 300 may be arranged side by side in the crane traveling direction at the center position of the flange portions 8 and 9 in the left-right direction. Furthermore, it may be provided in a plurality of rows inside the fulcrum pins 17 and 18 (in the crane traveling direction). As described above, in FIGS. 1, 2 ⁇ / b> A and 2 ⁇ / b> B, the elastic-plastic brace 300 is disposed inside the fulcrum pins 17 and 18, and the elastic member 13 (connector 14) is disposed outside the fulcrum pins 17 and 18. is doing.
  • the left and right end portions of the upper and lower flange portions 8 and 9 are prevented from being displaced in the left and right directions, and the upper members 3a and 4a are Each of the members 3b and 4b is provided with a stopper 25 for preventing the member 3b and 4b from being greatly bent and inclined. Further, stoppers 26 are provided at both ends of the upper and lower flange portions 8 and 9 in the front-rear direction to prevent the upper and lower flange portions 8 and 9 from being displaced in the front-rear direction.
  • FIG. 5 is a plan view showing a first modification of the embodiment of the present invention.
  • FIG. 5 shows a configuration in which the elastic member 13 and the elastoplastic brace 300 are arranged outside the fulcrum pins 17 and 18 (outside in the left-right direction).
  • FIG. 5 shows a configuration in which the elastic-plastic brace 300 and the elastic material 13 are mixed and arranged outside the side plates 15 of the support legs 3 and 4, but the elastic plates are arranged inside the side plates 15 and outside the fulcrum pins 17 and 18.
  • the plastic brace 300 and the elastic material 13 may be mixed and arranged.
  • the elastic-plastic brace 300 may be disposed on one of the inner side and the outer side of the side plate 15 and the elastic member 13 may be disposed on the other side.
  • 6A and 6B are plan views showing second and third modifications of the embodiment of the present invention, respectively.
  • 6A and 6B show a configuration in which the elastic member 13 and the elastic-plastic brace 300 are arranged on the inner side (the inner side in the left-right direction) than the fulcrum pins 17 and 18.
  • FIG. 6A shows a case where the elastic member 13 (connector 14) is arranged at the center position inside the fulcrum pins 17 and 18, and the elastic-plastic brace 300 is arranged on both the left and right sides of the elastic member 13. That is, the connector 14 is disposed at the center position in the left-right direction of the upper and lower flange portions 8, 9.
  • a plurality of elastoplastic braces 300 are arranged at positions that are symmetrical in the left-right direction with respect to the center position.
  • FIG. 6B shows a case where the elastic-plastic brace 300 is arranged at the center position inside the fulcrum pins 17, 18 and the elastic member 13 is arranged on both the left and right sides of the elastic-plastic brace 300. That is, the elastic-plastic brace 300 is disposed at the center position in the left-right direction of the upper and lower flange portions 8, 9.
  • the some connector 14 (elastic material 13) is arrange
  • the installation number and installation position of the elastic material 13 and the elastic-plastic brace 300 can be arbitrarily selected.
  • the elastic material 13 and the elastoplastic brace 300 described above are provided in the left and right directions of the upper and lower flange portions 8 and 9 so that the same base isolation performance can be exhibited even when the upper and lower flange portions 8 and 9 are inclined to the left and right. It is preferable to arrange them at the center position or at a position that is symmetrical in the left-right direction with respect to this center position.
  • the upper flange portion 8 is subjected to a preload (precompression force) of the right elastic member 13.
  • the left fulcrum pin 17 is tilted to the left with the center (fulcrum) as the center.
  • the flange portions 8 and 9 return to the state shown in FIG. 2A mainly due to the restoring moment by the elastic material 13 on the right side.
  • FIG. 7A shows a history of the relationship between the load and displacement of the elastic member 13 constituting the seismic isolation structure 200.
  • the load and displacement of the elastic body 13 in a state where the precompression force is applied are based on the vertical axis representing the load and the reference on the horizontal axis representing the displacement (intersection of the vertical axis and the horizontal axis). It is described as follows. When a large excitation force acts on the support legs 3 and 4 and a force (load) exceeding the precompression force applied to the elastic material 13 acts on the elastic material 13, the elastic material 13 is displaced according to the load by an arrow. It increases as shown by a1 (inclined so that the flange parts 8 and 9 open).
  • FIG. 7B shows the history of the relationship between the load and displacement of the elastic member 13 with a broken line and the history of the relationship between the load and the displacement of the elastic-plastic brace 300 with a solid line.
  • An elastic-plastic brace 300 formed of an elastic-plastic history steel material or the like, first, when a tensile load is applied to the elastic-plastic brace 300 due to the inclination of the flange portions 8 and 9, a linear load indicated by an arrow b1 ⁇ Displacement characteristics are shown. However, the elastoplastic brace 300 yields at a low load (yield point), and thereafter displaces in a state where the slope of the load-displacement characteristic is extremely small as indicated by an arrow b2.
  • the elastic-plastic brace 300 when the applied load is reduced, a compressive force is applied to the elastic-plastic brace 300 by the restoring force of the elastic member 13, so that a linear load-displacement characteristic indicated by an arrow b3 is exhibited as in the case of a general steel material.
  • the elastoplastic brace 300 yields again at a low load (yield point), and is displaced with a very small gradient of the load-displacement characteristic as indicated by an arrow b4.
  • the elastic-plastic brace 300 draws a history having an area in the load-displacement characteristic until the upper and lower flange portions 8 and 9 are opened and closed. It can be consumed and response (vibration) can be suppressed.
  • the elastoplastic brace 300 provides a parallelogram history in the load-displacement characteristics by providing the elastoplastic brace 300, the load when the displacement returns to 0, that is, the flange portions 8 and 9 are closed.
  • the load when the contact surfaces 10 come into contact with each other can be reduced. That is, the elastoplastic brace 300 can act as a resistance (attenuator). Therefore, it is possible to reduce an impact force generated when the flange portions 8 and 9 are closed from the opened state and the contact surfaces 10 come into contact with each other, and generation of a large response acceleration in the crane body 1 can be prevented.
  • the elastoplastic brace 300 has not only a function as a damping device but also a function of a spring element.
  • the support point interval is increased in order to increase the horizontal force required when the seismic isolation structure 200 starts to operate (starts tilting at the flange portions 8 and 9). Need to be wide. That is, it is necessary to set a large distance between the fulcrum pins 17 and 18 in FIG. 2A.
  • the elastic-plastic brace 300 uses a steel plate 19 having a spring constant close to that of a general steel material. Therefore, since the elasticity of the steel plate 19 is added to the horizontal rigidity of the base isolation structure 200, the horizontal force required when the base isolation structure 200 starts operation can be increased. Therefore, the space
  • the elastic material 13 since the elastic material 13 is disposed inside the fulcrum pins 17 and 18, the amount of deformation of the elastic material 13 when the flange portions 8 and 9 are opened is small. . As a result, since the amount of deformation required for the elastic material 13 is reduced, the elastic material 13 can be reduced in size. Further, when the elastic material 13 is arranged outside the fulcrum pins 17 and 18, only the elastic material 13 on the side where the flange portions 8 and 9 are opened is deformed, and the elastic material 13 on the opposite side is not deformed.
  • the elastic material 13 can be deformed even if the flange portions 8 and 9 are opened on either the left or right side. Therefore, in this case, it is possible to reduce the number of elastic members 13 and reduce the size and weight of the apparatus.
  • the elastic-plastic brace 300 when the elastic-plastic brace 300 is disposed inside the fulcrum pins 17 and 18, the elastic-plastic brace 300 when the flange portions 8 and 9 are opened is used. Therefore, the elastic-plastic brace 300 can be reduced in size.
  • the seismic isolation support device 100 including the base isolation structure 200 having the elastic member 13 and the elastoplastic brace 300
  • the number of the elastic members 13 is reduced and the distance between the fulcrum pins 17 and 18 is increased.
  • the support legs 3 and 4 during normal operation can be held with high support rigidity.
  • the elasticity of the steel plate 19 of the elasto-plastic brace 300 is added to the elasticity of the pre-compressed elastic material 13, so that the seismic isolation period can be expanded and the seismic isolation effect can be effectively enhanced.
  • the response acceleration in the crane body 1 can be reduced.
  • the seismic isolation support device 100 including the seismic isolation structure 200 having the elastic material 13 and the elastoplastic brace 300 is illustrated.
  • the seismic function can be further enhanced.
  • the seismic isolation support device for a traveling crane of the present invention can be applied to support legs of various traveling cranes.
  • various shapes and structures other than the illustrated example can be used for the elastic-plastic brace.
  • the left-right direction is demonstrated as a direction orthogonal to a crane traveling direction, it is not restricted to this, The direction which crosses a crane traveling direction may be sufficient as the left-right direction (width direction). .
  • the present invention can be used for a seismic isolation support device for a traveling crane that travels on rails with a gate-shaped support leg such as a container crane used in a harbor portion or the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Vibration Prevention Devices (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)

Abstract

L'invention se rapporte à un dispositif support à isolation sismique (100) qui est destiné à un pont roulant et qui comprend une structure d'isolation sismique (200) comportant : des parties rebords supérieure et inférieure (8, 9) qui sont séparées en une partie supérieure et une partie inférieure, et qui peuvent être reliées l'une à l'autre ; et un outil de liaison (14) qui permet de relier les parties rebords supérieure et inférieure (8, 9) par l'intermédiaire d'un matériau élastique (13). Des surfaces de contact (10), qui entrent en contact l'une avec l'autre et qui présentent une largeur de contact dans le sens de la largeur, sont prévues sur les surfaces opposées desdites parties rebords supérieure et inférieure (8, 9). Des interstices (11, 12), qui permettent l'inclinaison vers l'extérieur des parties rebords (8, 9) par rapport aux deux extrémités des surfaces de contact (10) dans le sens de la largeur, se trouvent entre ces parties rebords supérieure et inférieure (8, 9). De plus, des entretoises élasto-plastiques (300) servent à relier lesdites parties rebords supérieure et inférieure (8, 9) du haut et du bas.
PCT/JP2012/075988 2011-10-06 2012-10-05 Dispositif support à isolation sismique destiné à un pont roulant WO2013051702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-222048 2011-10-06
JP2011222048A JP5809915B2 (ja) 2011-10-06 2011-10-06 走行クレーンの免震支持装置

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WO2013051702A1 true WO2013051702A1 (fr) 2013-04-11

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TW (1) TWI490158B (fr)
WO (1) WO2013051702A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN106044577A (zh) * 2016-08-18 2016-10-26 无锡石油化工起重机有限公司 带巡航灯塔的港口龙门起重机

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KR101318813B1 (ko) 2013-06-24 2013-10-16 주식회사 맥스로텍 소재 이송용 갠트리 장치의 분리형 구조물과 그 설치방법
CN110104547B (zh) * 2019-04-26 2020-05-22 青岛海西重机有限责任公司 一种集装箱龙门起重机用增高工装及增高方法
CN111238706B (zh) * 2020-02-14 2021-06-01 上海上安机械施工有限公司 一种自行式起重机支腿支撑力的检测方法

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JPH08310785A (ja) * 1995-05-19 1996-11-26 Ishikawajima Harima Heavy Ind Co Ltd 荷役装置の揺脚構造
JP4536895B2 (ja) * 2000-09-29 2010-09-01 Ｉｈｉ運搬機械株式会社 走行クレーンの免震構造
JP4739567B2 (ja) * 2001-04-04 2011-08-03 Ｉｈｉ運搬機械株式会社 免震構造

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TW495483B (en) * 1998-12-25 2002-07-21 Mitsubishi Heavy Ind Ltd Seismic isolation system for a crane
CN1666947A (zh) * 2004-03-10 2005-09-14 上海振华港口机械（集团）股份有限公司 集装箱起重机抗地震装置
CN1785785A (zh) * 2005-03-29 2006-06-14 上海振华港口机械（集团）股份有限公司 码头装卸起重机抗地震系统
CN101229903B (zh) * 2008-02-21 2010-08-18 同济大学 采用滑动销轴的港口起重机抗地震装置

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Publication number Priority date Publication date Assignee Title
JPH08310785A (ja) * 1995-05-19 1996-11-26 Ishikawajima Harima Heavy Ind Co Ltd 荷役装置の揺脚構造
JP4536895B2 (ja) * 2000-09-29 2010-09-01 Ｉｈｉ運搬機械株式会社 走行クレーンの免震構造
JP4739567B2 (ja) * 2001-04-04 2011-08-03 Ｉｈｉ運搬機械株式会社 免震構造

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044577A (zh) * 2016-08-18 2016-10-26 无锡石油化工起重机有限公司 带巡航灯塔的港口龙门起重机

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TW201326019A (zh) 2013-07-01
JP2013082515A (ja) 2013-05-09
JP5809915B2 (ja) 2015-11-11

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