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1. 发明专利

JPH08111112A HANGING TOOL APPARATUS 失效
公开(公告)号：JPH08111112A
公开(公告)日：1996-04-30
申请号：JP24602394
申请日：1994-10-12
申请人： KAJIMA CORP
发明人： ISHII KOJI
IPC分类号： B66C13/06 , F16F15/02 , F21V21/02 , F21V21/34
摘要： PURPOSE: To absorb and lower the swinging of a hung object, e.g. a chandelier, etc., due to vibrations of a building without using motive power and to prevent damages and accidents of the hung object and articles in the surroundings. CONSTITUTION: A hanging tool apparatus is composed of a movable supporting point 1 to which an object matter M to be hung is attached and a guide rail 2 to guide and support the movable supporting point 1 in the way the movable supporting point 1 can move horizontally or the apparatus is composed of a movable guide member 11 to which an object matter M to be hung is attached and a fixed supporting point 12 to support the movable guide member 11 in the way the movable guide member 11 can move horizontally. In the case of a slight quake, the movable supporting point 1, etc., is kept at a constant position in the guide rail 2, etc., which moves together with a building and thus the object matter M to be hung does not move. In the case of a big quake, the movable supporting point 1, etc., moves due to horizontal force in the direction of the quake of a building and the vibration energy is lessened by the extent of the movement and the swinging of the object matter M to be hung is remarkably lessened.

2. 发明专利

JPH0712174A CONTROL DEVICE FOR EARTHQUAKE CONTROL DEVICE 失效
公开(公告)号：JPH0712174A
公开(公告)日：1995-01-17
申请号：JP17203793
申请日：1993-06-21
申请人： KAJIMA CORP , ISHIKAWAJIMA HARIMA HEAVY IND
发明人： NISHIMURA ISAO , TAKENAKA YASUO , SASAKI KATSUYASU , ORUI SATORU , ISHII KOJI , KOJIKA NORIHIDE , IKEDA YOSHIKI , YASUDA KOJIRO , MUTAGUCHI KATSUO , MARUOKA MASANORI , TANIDA KOJI , KOIKE YUJI , MURATA TAMOTSU
IPC分类号： B63H21/30 , E01D1/00 , E04H9/02 , F16F15/02 , G05D19/02
摘要： PURPOSE:To enable the continuous control of gain so as to accelerate the response speed by inputting a signal, detected by an accelerometer, directly into a displacement command computing element, inputting the computed result immediately into an automatic gain computing element, and sending a control command with an adjusted gain coefficient to a drive unit when the peak value enters an automatic gain variable range. CONSTITUTION:A control device is used for an active earthquake control device 8 of such constitution as to convert the vibration of a structure into the kinetic energy of a weight as a mass reciprocated by the driving of a motor 6 as an actuator so as to damp this vibration. This control device is provided with an accelerometer 9 installed in such a way as to detect the vibration of the structure, a displacement command computing element 10, a stroke computing element, for computing the amplitude of the weight on the basis of a signal detected by the accelerometer 9, and an automatic gain computing element 11 for obtaining the peak value in the optionally set cycle period of the computed time series waveform, adjusting a gain coefficient according to the peak value and sending a control command to a motor drive unit 12.

3. 发明专利

JPH06221912A SEISMIC CONTROL OR ISOLATION EFFECT DISPLAY DEVICE 失效
公开(公告)号：JPH06221912A
公开(公告)日：1994-08-12
申请号：JP1073193
申请日：1993-01-26
申请人： KAJIMA CORP
发明人： ISHII KOJI , ADACHI NORIHIKO
IPC分类号： E04H9/00 , E04B1/98 , G01H13/00 , G01H17/00 , G01V1/00
摘要： PURPOSE:To display the damping effect visually and audibly in a seismic control/isolation structure where availability and safety of a building are enhanced by reducing the quake at the time of earthquake. CONSTITUTION:The inventive display device comprises an earthquake observing unit, a computor, a display device and an interconnecting communication unit wherein the earthquake observing unit records the seismic wave being input to a structure every predetermined time and the response wave of the structure whereas the computor operates the response of the structure, when no seismic control/isolation measure is taken, using the dynamic characteristics of the structure and the recorded input seismic wave. The input seismic wave, the seismic control/isolation response wave, the wave calculated for non-seismic control/isolation structure, and seismic control/isolation effect are then presented on a display.

4. 发明专利

JPH02269244A FITTING STRUCTURE FOR NONSTRUCTURAL MEMBER 失效
公开(公告)号：JPH02269244A
公开(公告)日：1990-11-02
申请号：JP9034689
申请日：1989-04-10
申请人： KAJIMA CORP
发明人： TANAKA NAOKI , SATO KUNIAKI , KOBAYASHI MIKIO , ISHII KOJI , FUKUMOTO TOSHIYUKI , MIURA YOSHIKATSU , YAMADA SHUNICHI
IPC分类号： E04F13/21 , E04B2/88 , E04B2/90 , E04F13/08
摘要： PURPOSE:To absorb energy with dampers by fixing the dampers absorbing energy by the deformation in one direction at the connecting fulcrum between a nonstructural member end a structure body, and utilizing the relative movement caused by inter-layer displacement. CONSTITUTION:Dampers 2 are fixed to a nonstructural member 1 by bolts at one end and to a structure body S by anchor bolts 4 at the other end respectively. The external force applied to the nonstructural member 1 at the time of the inter-layer displacement of the structure body S is transmitted to the dampers 2, and vibration energy is absorbed by the nonstructural member 1 unit. Interval adjusting fitting metals are inserted between the nonstructural member 1 and the structure body S to restrict the drift in the face outer direction. The vibration energy of a building can be absorbed for each nonstructural member 1.

5. 发明专利

JPH02248581A VARIABLE DAMPER DEVICE FOR VIBRATION-PROOF STRUCTURE 失效
公开(公告)号：JPH02248581A
公开(公告)日：1990-10-04
申请号：JP7118289
申请日：1989-03-23
申请人： KAJIMA CORP
发明人： KOBORI TAKUJI , ISHII KOJI , TAKAHASHI GENICHI , HIRAI JUNICHI , ADACHI YOSHINORI , NIWA NAOMIKI
IPC分类号： E04H9/02 , E04B1/34 , E04B5/00
摘要： PURPOSE:To secure safeness of a variable damper device as well as reduce the amount of response of structure by permitting the combined evaluation of the resonance and damping property of the structure by a method in which damping coefficients are made variable for the closing and opening cases of a great flow-switching valve. CONSTITUTION:Oil-pressure chambers 5 are provided on the left and right sides of a piston 3 reciprocally moving in a cylinder 2. The piston 3 is fixed or made movable by closing or opening a great capacity switching valve 10. A shut-off valve 11 is also provided on the back pressure port 14 side of the valve 10 to allow a great volume of pressure oil to flow to the valve 10 at high speeds or to interrupt in instantly. When the valve 10 is closed, a bypass thought which pressure oil is allowed to flow under a throttled condition is provided. Orifices 15 and 16 are adjusted to set up the damping coefficient to a variable or optional value when closing or opening the valve 10.

6. 发明专利

JPH0216230A LAMINATED RUBBER BEARING 失效
公开(公告)号：JPH0216230A
公开(公告)日：1990-01-19
申请号：JP16425288
申请日：1988-07-01
申请人： KAJIMA CORP
发明人： FUKUMOTO TOSHIYUKI , ISHII KOJI , YASAKA ATSUHIKO , IIZUKA MASAMI , TAGAMI ATSUSHI
IPC分类号： E02D27/34 , E04B1/36 , E04H9/02 , F16F1/40 , F16F3/08 , F16F7/00 , F16F13/00 , F16F15/08
摘要： PURPOSE:To prevent resonance phenomenon from occurring by a method in which a ringed rubber laminated layer is provided to the periphery of the central rubber layer of a circular column form to vary the rigidity of the laminated rubber layers in a stepwise manner. CONSTITUTION:The height of the central first rubber laminate layer 1 of a circular column form is made higher than the second and third laminated rubber layers 2 and 3 of a ring form. The periphery of the layer 1 is provided with the layer 2 and then with the layer 3 to form a laminated rubber layer bearing A. When horizontal forces of earthquake, wind, etc., are applied to the bearing A, the layer 1 is deformed, the upper end of the layer 2 comes into contact with a superstructure 5 to increase its rigidity, whereby varying the natural vibration period of the bearing A. As the deformation increases, the upper end of the layer 3 comes into contact with the structure 5 and its rigidity is further increased to vary the natural vibration period of the bearing A.

7. 发明专利

JPH01275867A VIBRATION CONTROL METHOD FOR BUILDING 失效
公开(公告)号：JPH01275867A
公开(公告)日：1989-11-06
申请号：JP10294188
申请日：1988-04-26
申请人： KAJIMA CORP
发明人： KOBORI TAKUJI , SAKAMOTO MITSUO , YAMADA SHUNICHI , ISHII KOJI , NISHIMURA ISAO , TAGAMI ATSUSHI
IPC分类号： E04H9/02 , F16F15/02 , G05D19/02
摘要： PURPOSE:To make it possible to control buildings' complex vibration and to improve vibration control effect, by installing a plurality of active type vibration control devices which control weights, capable of making relative movement against the building in accordance with vibration of the building, and by realizing simultaneous control by a plurality of vibration control devices. CONSTITUTION:One of the methods proposed by this description is that a vibration control device AMD1 which controls vibrations in the X direction and vibration control device AMD2 which controls vibrations in the Y direction are arranged so that they are placed at right angles each other. Sensors S1-S4 made of accelerometers are arranged at weights 2 and a building body 1. Detected signals are transmitted to a control device, and levels of the signals at synthesization with amplified response signals of the weight 2 is controlled by an automatic gain control circuit. One of the methods to control vibration is that with reaction taken at the building 1, control force is applied to the building 1 through the weight 2 and, at the same time, simultaneous control by a plurality of vibration control devices is applied. By the above-mentioned methods, complex vibration of the building can be controlled and vibration control effect can be improved, too.

8. 发明专利

JPH01260176A FRICTION DAMPER 失效
公开(公告)号：JPH01260176A
公开(公告)日：1989-10-17
申请号：JP8630988
申请日：1988-04-08
申请人： KAJIMA CORP
发明人： YASAKA ATSUHIKO , ISHII KOJI , IIZUKA MASAOMI
IPC分类号： E04H9/02 , F16F7/02 , F16F15/02
摘要： PURPOSE:To make adjustment of damping force possible, by installing a receiving seat and a pedestal, whose recessed parts face each other, to the upper foundation of a structure body proper and to the lower foundation supporting the upper foundation, and by connecting, in a way that is capable of oscillating, both recessed parts by a support with two spherical bodies at both ends. CONSTITUTION:A pedestal 1 is fixed to the lower foundation A and a receiving seat 2 is fixed to the upper foundation B. A cylindrical recessed part 7 is formed on the pedestal 1 and a plurality of clamping bolts 4 are screwed in through the side walls and friction members 5 are installed at the tips of the bolts. A downwardly opened recessed part 7 is formed in the receiving seat 2, and a spherical body 8 at the upper part of a support 3 is fitted therein. A spherical body 8 at the lower part of the support 3 is fitted into the inside of the friction members 5 that are placed in the recessed part 7 of the pedestal 1, and friction force of the friction members 5 is adjusted by the clamping bolts 4. When relative displacement occurs between the foundation A and the foundation B on an occasion of building vibration by earthquake, the support 3 oscillates, resulting in conversion of friction force to heat between the spherical body 8 and the friction members 5 and vibration of the building can be damped.

9. 发明专利

JPH01260137A FRICTION DAMPER 失效
公开(公告)号：JPH01260137A
公开(公告)日：1989-10-17
申请号：JP8631088
申请日：1988-04-08
申请人： KAJIMA CORP
发明人： YASAKA ATSUHIKO , ISHII KOJI , IIZUKA MASAOMI
IPC分类号： E04B1/36 , E04H9/02
摘要： PURPOSE:To obtain sufficient ability to absorb energy by a simple construction by inserting a coil spring between an external - and an internal cylinder at a lower foundation so that both cylinders are capable of expanding and contracting in a vertical direction and inserting a friction member between the internal cylinder and a receiving seat of an upper foundation. CONSTITUTION:A friction damper is such that a coil spring 3 is inserted into an external cylinder 1 to engage an internal cylinder, pressing a rod 10 into the internal cylinder 2 from up to down, piercing the tip of the rod into a hole 7 from top through down to project it, and that a fixed nut 11 is screwed in to couple the external cylinder 1 with the internal cylinder 2. A receiving seat 6 is fastened to the lower surface of an upper foundation (B) by a bolt 8, forming a recessed section 9 on the upper end part of the internal cylinder 2 to place a ball seat 4. A friction member 5 is inserted between the ball seat and the receiving seat 6, loosing the fixed nut 11 to raise the internal cylinder 2, and a specific compressive force is introduced between the friction member 5 and the receiving seat 6. Accordingly, such friction damper that can be easily handle a and designed can be obtained.

10. 发明专利

JPS6436841A ELASTIC AND PLASTIC DAMPER 失效
公开(公告)号：JPS6436841A
公开(公告)日：1989-02-07
申请号：JP19236087
申请日：1987-07-31
申请人： KAJIMA CORP
发明人： YAMADA SHUNICHI , KOBORI TAKUJI , NISHIMURA ISAO , ISHII KOJI , TAGAMI ATSUSHI
IPC分类号： E04B1/36 , E04B1/98 , E04H9/02 , F16F7/00 , F16F7/12 , F16F15/06
摘要： PURPOSE: To obtain an elastoplasticity damper which has high energy-absorbing capacity by providing a base plate, in a unified form, on the periphery of the bottom of a damper unit composed of plate materials, and by making the plate thickness and width of the damper unit so as to be larger on the side of the base plate. CONSTITUTION: A base plate 13 is provided, in a unified form, on the periphery of the bottom of a damper unit 12 composed of plate materials, and both of the plate thickness and width are made so as to be larger on the side of the base plate 13. The base plate 13 is also provided on the periphery of the top of the damper unit 12, and a plurality of bolt inserting holes are bored on each base plate 13. As a result it is possible to obtain the elastoplasticity damper A which has a high bearing force against bending at the largest moment area and high energy-absorbing capacity.

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