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1. 发明专利

JPH06272426A ELASTO-PLASTIC DAMPER 失效
公开(公告)号：JPH06272426A
公开(公告)日：1994-09-27
申请号：JP6527393
申请日：1993-03-24
申请人： KAJIMA CORP , OILES INDUSTRY CO LTD
发明人： ARITA TOMOHIKO , YAMADA SHUNICHI , TAKENAKA YASUO , TANAKA NAOKI , FUKUMOTO TOSHIYUKI , FUKUZAWA EIJI , MAEDA SHOZO , SHIMODA IKUO , IKENAGA MASAYOSHI , MIYAZAKI MITSURU
IPC分类号： E04H9/02 , F16F7/12
摘要： PURPOSE:To enhance deformation capability of a lead damper by preventing tensile breakage and adhesive breakage due to bending stress. CONSTITUTION:An elasto-plastic damper comprises flanges 2, 2 connected to mutually insulated structural components and a lead damper 3 sandwiched by the flanges 2, 2 with both ends being bonded to the respective flanges 2, 2. The lead damper 3 is divided in plural layers in axial direction. Lead 31 is disposed in the middle, and lead alloy 32, 32 of tensile and shearing strength layer than those of the lead 31 are disposed on both sides toward the flanges 2, 2 in axial direction, both being bonded together. The adhesive strength between the lead 31 and the lead alloy 32 and between the lead alloy 32 and the flange 2 are larger than material strength of the lead alloy, so that tensile breakage and adhesive breakage and prevented without increasing sectional areas of both ends and thus the deformation capability is enhanced.

2. 发明专利

JPH0356990A DEVICE FOR DISPLAYING ENERGY ABSORPTION OF STRUCTURE 失效
公开(公告)号：JPH0356990A
公开(公告)日：1991-03-12
申请号：JP19314789
申请日：1989-07-26
申请人： KAJIMA CORP
发明人： TANAKA NAOKI , KOBAYASHI MIKIO , ISHII KOJI , FUKUMOTO TOSHIYUKI , MIURA YOSHIKATSU , FUKUZAWA EIJI , YAMADA SHUNICHI
IPC分类号： E04H9/02 , F16F15/02 , G01L1/00 , G09F19/00
摘要： PURPOSE:To quantitatively and clearly display energy consumption and its residual by discharging liquid equivalent to the relative displacement of structures from a container storing the liquid equivalent to the whole energy consumption. CONSTITUTION:A device is provided with a piston 3 reciprocating at the time of the relative displacement of both structures B1 and B2, and a pressure fitting 4 converting the relative displacement of the structures B1 and B2 into the reciprocation of the piston 3 and pressing a piston head 30. The inside of a container 1 is filled with liquid 5 which represents the whole energy absorptivity of an energy absorbing device A at fully filling state. This liquid 5 is discharged by the energy consumption of the energy absorbing device A to the outside of the container 1 by the piston 3. At this time, the liquid 5 which resides in the container 1 after the energy absorbing device A is actuated shows the reserve energy of the energy absorbing device A, i.e., the residual energy absorptivity. Thus, the energy consumption and its residual capacity can be quantitatively displaied.

3. 发明专利

JPH10292390A INSTALLING METHOD OF ANCHOR BOLT FOR VIBRATION ISOLATION DEVICE 失效
公开(公告)号：JPH10292390A
公开(公告)日：1998-11-04
申请号：JP9681897
申请日：1997-04-15
申请人： KAJIMA CORP
发明人： MATSUSHIMA JUN , AIBA KUNIHIRO , AMAMIYA HIROSHI , MOGI KIYOSHI , FUKUZAWA EIJI
IPC分类号： E02D27/34 , E02D27/00
摘要： PROBLEM TO BE SOLVED: To facilitate not only operation, in which an anchor bolt is set, but also the reinforcement arranging work of a pressure-resisting disk, to improve workability, to set the anchor bolt at an accurate place, to decrease operation, in which concrete is cured at the time of concrete placing, and to shorten the term of works. SOLUTION: In the installing method, the lower end reinforcement 10 of a footing beam as a pressure-resisting disk 4 is arranged, pipes 13, into which the anchor bolts 18 for mounting the vibration isolation device are inserted, are fixed onto pile reinforcements 8, the upper-end reinforcements 14 of the pressure-resisting disk 4 are arranged, concrete 17 is placed so that the upper openings of the pipes 13 are opened to the top face of the pressure-resisting disk 4, and the pressure-resisting disk 4 is built and the pipes 13 are buried into the pressure-resisting disk 4. The lower sections of the anchor bolts 18 are inserted into the pipes 13, a grout material 20 is injected into the pipes 13 and the anchor bolts 18 are fixed onto the pressure-resisting disk 4 as the footing beam through the grout material 20 and the pipes 13.

4. 发明专利

JPH11140965A ANALYZING METHOD OF STRUCTURE FRAME 失效
公开(公告)号：JPH11140965A
公开(公告)日：1999-05-25
申请号：JP30542197
申请日：1997-11-07
申请人： KAJIMA CORP
发明人： FUKUZAWA EIJI , KOU SHIYOUKOU
IPC分类号： E04B1/00 , E04B1/18
摘要： PROBLEM TO BE SOLVED: To provide the efficient analyzing method of a structure frame by which the increase of displacement degree-of-freedom numbers in analysis is inhibited while ensuring necessary analytic accuracy, the workload of programming is also reduced and an arithmetic processing time is shortened. SOLUTION: Various dimensions such as size related to member rigidity, column-beam connection-section rigidity, etc., a Young's modulus, a shear modulus, etc., are input, and the member rigidity is evaluated on the basis of input values. A column-beam connection section is treated as a rigid zone, and the effect of the shear deformation of the connection section is added to the shear deformation of the member by formula. Accordingly, the shear deformation of the column-beam connection section is introduced equivalently to the shear deformation of the member, and the displacement degree-of-freedom of analysis is not increased. When a computation model in a corrected form is determined, stress analysis and earthquake response analysis are conducted on the basis of the model.

5. 发明专利

JPS6471928A FOUNDATION STRUCTURE OF BUILDING 失效
公开(公告)号：JPS6471928A
公开(公告)日：1989-03-16
申请号：JP22615587
申请日：1987-09-09
申请人： KAJIMA CORP
发明人： FUKUZAWA EIJI , ONISHI KOHEI , KOMATSU RYOJI , ARITA TOMOHIKO
IPC分类号： E02D27/34 , E02D27/12 , E02D27/32
摘要： PURPOSE:To prevent the effect caused by displacement on low buildings by a method in which the fixing degree of pile head to the foundation slab of a low building is eased and the forced displacement of the foundation slab by displacement caused by earthquake of a tall building is absorbed. CONSTITUTION:A low building B is integrally constructed around a tall building A. The head of the base pile 1 of the tall building A is fixed completely to the foundation slab 2. By easing the fixing degree of the head of the pile 3 of a low building B, the forced displacement of the foundation slab 2 is made absorbable.

6. 发明专利

JPS6471927A REINFORCED STRUCTURE OF PILE AND FOUNDATION 失效
公开(公告)号：JPS6471927A
公开(公告)日：1989-03-16
申请号：JP22817287
申请日：1987-09-11
申请人： KAJIMA CORP
发明人： OKAWA JUN , FUKUZAWA EIJI , ARITA TOMOHIKO
IPC分类号： E02D27/12
摘要： PURPOSE:To exactly reinforce pile and foundation by a method in which the fixing degree of pile head to a base bottom slab is eased and a ringed reinforcing bar for preventing cracks is buried in the concrete of the periphery of pile head. CONSTITUTION:The fixing degree of the head of pile A to a base bottom slab B is eased to the extent of pin-joint or semi-rigid joint by limiting the cut-in length to the slab B to about 10cm. Reinforcing bars 1 of a form for preventing cracks are buried in a single or double or more form in the peripheral concrete traversing an imaginary face X.

7. 发明专利

JPH04185934A MOUNTING STRUCTURE OF ELASTOPLASTIC DAMPER 失效
公开(公告)号：JPH04185934A
公开(公告)日：1992-07-02
申请号：JP31308490
申请日：1990-11-19
申请人： KAJIMA CORP
发明人： ARITA TOMOHIKO , TOYAMA KOZO , MIURA YOSHIKATSU , FUKUZAWA EIJI , SAKAMOTO MITSUO , YAMADA SHUNICHI , KUROKAWA YASUTSUGU
IPC分类号： E04H9/02 , F16F7/00 , F16F7/12 , F16F15/02
摘要： PURPOSE:To absorb energy highly effectively by hanging an elastoplastic damper with its shaft posted horizontally, by connecting one end to one side, and by connecting the other end in the direction of shaft as well as in the horizontal direction in such a way that the other end can be freely and relatively moved, so as to constrain only the relative movement in the vertical direction. CONSTITUTION:A damper 1 is hung between each structure member S with the shaft of a damper part 1a placed horizontally, and one of supporting parts 1b, 1b is fixed to one side thereof, and the other to the other side in the shaft direction as well as in the horizontal direction perpendicular to the former direction, namely, the damper is connected in such a way that it is relatively freely moved in the horizontal surface, and is constrained for the relative movement in the vertical direction. The damper 1 resists against the external force only when it is relatively displaced in the vertical direction, e.g. between each structure member S, and the vibrational condition is almost equal, while the relative displacement in the horizontal direction is not changed at the time of vibration, which is effective for a structure which is larger in the vertical displacement, and the damper 1 receives bending deformation and shear deformation according to the difference in the vertical displacement, and the vibration energy is thus absorbed.

8. 发明专利

JPH03241177A DEVICE FOR REDUCING OUT-OF-PLANE DEFORMATION OF PLANAR DAMPER 失效
公开(公告)号：JPH03241177A
公开(公告)日：1991-10-28
申请号：JP3463590
申请日：1990-02-15
申请人： KAJIMA CORP
发明人： TANAKA NAOKI , ISHII KOJI , FUKUMOTO TOSHIYUKI , FUKUZAWA EIJI , MAEDA SHOZO
IPC分类号： E04H9/02
摘要： PURPOSE:To prevent the performance drop of a planar damper by connecting Z-shaped deformation absorbing plates which expand and contract in the in-plane direction to both ends of the planar damper to be housed in the vibrational energy absorbing wall of a structure and reducing the displacement of the damper in the out-of-plane direction. CONSTITUTION:Deformation absorbing plates 1 are firmly fixed to both ends of a planar damper D which is provided between structures S and absorbs vibrational energy by making elastic and plastic deformation in the in-plane direction by utilizing the relative displacement between both structures S. Each of the plates 1 is folded to a Z-shape in cross section and equipped with fitting flanges 2 at both ends. The plate 1 is elongated like a spring when a force acts on the structures S in the out-of-plane direction (shown by the arrows A) of the damper D. Therefore, the deformation of the damper D can be prevented and the performance of the damper can be secured.

9. 发明专利

JPH0366936A ELASTIC PLASTIC DAMPER 失效
公开(公告)号：JPH0366936A
公开(公告)日：1991-03-22
申请号：JP20266189
申请日：1989-08-04
申请人： KAJIMA CORP
发明人： FUKUMOTO TOSHIYUKI , FUKUZAWA EIJI , YAMADA SHUNICHI , TANAKA NAOKI , AMANO MASAHIKO , MAEDA SHOZO
IPC分类号： E04H9/02 , E04H9/14 , F16F7/12 , F16F15/04
摘要： PURPOSE:To make an elastic plastic damper very small and facilitate attachment by forming a male thread at least one of attachment ends of the damper and a damper part in the intermediate part. CONSTITUTION:An elastic plastic damper D has an attachment portion d1 formed at least one end thereof with a male thread and a middle damper portion d2. The damper is connected at its both ends to a structure member S and a non-structure member s to absorb vibration energy when the structure member S or the non-structure member s displaces relative to the damper in the direction of rectangular cross to the damper d2. Thus, the size of the damper including the attachment portions is very small and the attachment is very easy because the attachment is made by tightening a nut.

10. 发明专利

JPH09328924A ASEISMATIC STRUCTURE PROVIDED WITH DAMPERS IN LOWER FLOOR OF PILOTI STRUCTURE 失效
公开(公告)号：JPH09328924A
公开(公告)日：1997-12-22
申请号：JP14566796
申请日：1996-06-07
申请人： KAJIMA CORP
发明人： OMIKA YUKIHIRO , SUGANO TADASHI , FUKUZAWA EIJI , KOU SHIYOUKOU
IPC分类号： E04H9/02
摘要： PROBLEM TO BE SOLVED: To absorb the oscillating energy at the time of earthquake, and to lower the concentration of damage to pillars of a first floor, and to improve the aseismatic property of the piloti structure by eliminating walls of a second floor of the piloti structure, and fitting dampers in place of the walls. SOLUTION: Walls of a second floor of the piloti structure are eliminated, and hysteresis damping type dampers 3 are placed in place of the walls. Concentration of damage to pillars of the first floor at the time of earthquake can be lowered by providing the dampers 3 in a lower floor of the piloti structure. The pillars 1 of the first floor and the dampers 3 are formed not to be yielded at the time of small earthquake, and a building can be used without requiring repairing. At the time of an earthquake at a middle level, when the pillars 1 are not damaged even in the case where the damper achieves a yielding point, the building can be continuously used by changing the dampers 3. Rigidity and yielding point of the dampers 3 are set so that the dampers 3 of the second floor 2 are yielded before the pillars 1 of the first floor 1 are yielded at the time of a large earthquake. The oscillating energy at the time of earthquake is absorbed by the dampers 3, and the aseismatic property of the piloti structure can be improved.

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