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1. 发明专利

JP2002081134A STRENGTH ESTIMATING METHOD FOR STEEL PIPE COLUMN AND BEAM JOINT 失效
公开(公告)号：JP2002081134A
公开(公告)日：2002-03-22
申请号：JP2000271631
申请日：2000-09-07
申请人： TAKENAKA KOMUTEN CO , KUBOTA KK
发明人： SHIMONO NAOTO , SEGAWA TERUO , OKAMOTO TATSUO , UEDA HIROYUKI , KANEKO HIROFUMI , HIRAIDE TORU , HIGUCHI MITSURU , EITO OSAMU , TAGANO KIMISUKE , MORIZAKI MITSURU , HARADA KOICHI
IPC分类号： E04B1/30
摘要： PROBLEM TO BE SOLVED: To make it possible to determine the yield strength of a joint between a steel pipe column and a beam more accurately and easily with less labor. SOLUTION: The yield strength cPy of the joint between the steel pipe column and the beam can be calculated from an outer diameter Dp of a thickened steel pipe portion K2, a pipe thickness Tp of a thickened steel pipe portion K2, a joint width Bf' including an excess metal of weld of the thickened steel pipe portion K2 and a beam flange BF of the steel pipe column and beam joint, a joint height Tf' including an excess metal of weld of the thickened steel pipe portion K2 and a beam flange BF, an axial tension ratio (np) which is a ratio between the axial tension at the thickened steel pipe portion and the yield strength in axial direction of the thickened steel pipe portion, an yield unit stress fσy of a beam member, and an yield unit stress cσy of the column member based on the following estimation equation (1): cPy=C 1.DpC2.TpC3.Bf'C4.Tf'C5.(1-np)C6.fσyC7.cσyC8... (1).

2. 发明专利

JP2001098642A METHOD FOR EVALUATING STRENGTH OF STEEL PIPE CONCRETE PILLAR/BEAM JUNCTION PART 失效
公开(公告)号：JP2001098642A
公开(公告)日：2001-04-10
申请号：JP2000228835
申请日：2000-07-28
申请人： TAKENAKA KOMUTEN CO , KUBOTA KK
发明人： HIRAIDE TORU , SHIMONO NAOTO , SEGAWA TERUO , OKAMOTO TATSUO , UEDA HIROYUKI , KANEKO HIROFUMI , HIGUCHI MITSURU , EITO OSAMU , TAGANO KIMISUKE , MORIZAKI MITSURU , HARADA KOICHI
IPC分类号： E04B1/30 , G01N3/00
摘要： PROBLEM TO BE SOLVED: To provide an evaluation method for reducing the degree for excessively evaluating the strength of a junction part. SOLUTION: The junction part between a flange 3F at the pull side of a steel frame beam 3 and a steel pipe concrete pillar 4 out of a steel pipe concrete pillar/beam junction part is divided into end regions (e) near both ends in the width direction of the flange and a central region (m) between them, the yield strength of a steel pipe 1 and that of the flange 3F are obtained for each of the end region (e) and the central region (m), a smaller one out of the yield strength of the steel pipe 1 and that of the flange 3F is set to end yield strength, yield obtained by multiplying a smaller one out of the yield strength of the steel pipe 1 and that of the flange 3F by a stress block coefficient is set to central yield strength for the central region (m), and the total of the end yield strength and the central yield strength is set to evaluation strength.

3. 发明专利

JP2001041866A METHOD FOR ESTIMATING YIELD STRENGTH OF JOINT PART OF STEEL PIPE AND BEAM 失效
公开(公告)号：JP2001041866A
公开(公告)日：2001-02-16
申请号：JP21377199
申请日：1999-07-28
申请人： TAKENAKA KOMUTEN CO , KUBOTA KK
发明人： SHIMONO NAOTO , SEGAWA TERUO , OKAMOTO TATSUO , UEDA HIROYUKI , KANEKO HIROFUMI , HIRAIDE TORU , HIGUCHI MITSURU , EITO OSAMU , TAGANO KIMISUKE , MORIZAKI MITSURU , HARADA KOICHI
IPC分类号： G01N3/00
摘要： PROBLEM TO BE SOLVED: To more accurately and simply obtain a yield strength of a joint part of a steel pipe column and a beam with less trouble. SOLUTION: A collapse mechanism of a joint part K2 of a steel pipe column C having a concrete 2 filled in an inner hollow part and a steel framed beam B is specified by a yield line and a flat plate part surrounded by the yield line. According to the method, a yield strength of the joint part K2 is obtained with the use of a yield line theory whereby the yield strength of the joint part K2 is derived from a yield criterion of a section at the yield line. In the method, the steel pipe column C is considered separately between the joint part K2 with a pipe thickness increased, and general parts K1 continuous with the joint part up and down. A pipe thickness tp of the joint part K2 and a pipe thickness tc of the general part K1 are set separately. In obtaining the yield strength of the joint part K2, a distance Lp between an upper end part of the joint part K2 and an upper end part of the steel framed beam B, and an axial force acting to the steel pipe column C are reflected to the yield line theory.

4. 发明专利

JP2001041865A METHOD FOR ESTIMATING YIELD STRENGTH OF JOINT PART OF STEEL PIPE COLUMN AND BEAM 失效
公开(公告)号：JP2001041865A
公开(公告)日：2001-02-16
申请号：JP21377099
申请日：1999-07-28
申请人： TAKENAKA KOMUTEN CO , KUBOTA KK
发明人： SHIMONO NAOTO , SEGAWA TERUO , OKAMOTO TATSUO , UEDA HIROYUKI , KANEKO HIROFUMI , HIRAIDE TORU , HIGUCHI MITSURU , EITO OSAMU , TAGANO KIMISUKE , MORIZAKI MITSURU , HARADA KOICHI
IPC分类号： G01N3/00
摘要： PROBLEM TO BE SOLVED: To more accurately and simply obtain a yield strength of a joint part of a steel pipe column and a beam with less trouble. SOLUTION: A yield strength cPy of a joint part of a steel pipe column and a beam is calculated on the basis of the following estimation equation form an outer diameter Dp of a thickness increased steel pipe part K2, a pipe thickness Tp of the thickness increased steel pipe part K2, a joint width Bf' including a welding excess metal of the thickness increased steel pipe part K2 and a beam flange BF of the joint part, a joint height Tf' including the welding excess metal of the thickness increased steel pipe part K2 and the beam flange BF, a joint outer circumference size Lf including the welding excess metal of the thickness increased steel pipe part K2 and the beam flange BF, a yield stress intensity fσy of a material of the beam and a yield stress degree cσy of a material of the column. cPy=C1.Dpc2.Tpc3.Bf'c4.Tf'c5.Lfc6.fσyc7.cσyc8.

5. 发明专利

JP2002348878A PRESSURE RECEIVING PLATE FOR ANCHORING METHOD 失效
公开(公告)号：JP2002348878A
公开(公告)日：2002-12-04
申请号：JP2001158799
申请日：2001-05-28
申请人： KUBOTA KK
发明人： KUBO KOICHI , KOBIKI KENJI , NAKANO AKIRA , EITO OSAMU
IPC分类号： E02D5/80 , E02D17/20
摘要： PROBLEM TO BE SOLVED: To provide a pressure receiving plate for an anchoring method, which makes a root grow easily into soil from an opening provided in a ground-contact bottom plate part of the pressure receiving plate, and enables the promotion of growth of trees and plants, when the pressure receiving plate is brought into pressure contact with a slope face via an anchor member even on low-strength natural ground. SOLUTION: The pressure receiving plate for the anchoring method is equipped with the ground-contact bottom plate part 3 which is brought into free contact with the slope face F, an anchor inserting part 5 which is formed in the plate part 3 so that the anchor member 4 can be inserted thereinto, an anchor locking part 6 which is formed in the inserting part 5 so that the anchor member 4 can be locked thereto, and a peripheral vertical reinforcing plate part 7 which is installed in a standing manner along a peripheral part of the plate part 3. The pressure receiving plate is constituted so that the slope face F can be brought into pressure contact by using the anchor member 4 locked to underground. A cylindrical body 10 is provided in such a manner as to protrude below an undersurface of the plate part 3, which is provided with the opening 3a communicating with a hollow inside 10d of the cylindrical body 10.

6. 发明专利

JP2002348866A PRESSURE RECEIVING PLATE FOR ANCHORING METHOD 失效
公开(公告)号：JP2002348866A
公开(公告)日：2002-12-04
申请号：JP2001158798
申请日：2001-05-28
申请人： KUBOTA KK
发明人： KUBO KOICHI , KOBIKI KENJI , NAKANO AKIRA , EITO OSAMU
IPC分类号： E02D5/80 , E02D17/20
摘要： PROBLEM TO BE SOLVED: To provide a pressure receiving plate for an anchoring method, which can establish proper compatibility between a planting function and a function of the pressure receiving plate for a slope face. SOLUTION: The pressure receiving plate for the anchoring method is provided with a ground-contact bottom plate part 3 which is brought into free contact with the slope face F, an anchor inserting part which is formed in the plate part 3 so that an anchor member can be inserted thereinto, an anchor locking part which is formed in the anchor inserting part so that the anchor member can be locked thereto, and a peripheral vertical reinforcing plate part 7 which is installed in a standing manner along a peripheral part of the plate part 3. The plate part 3 is provided with a weep hole 22 forming a communication passage 21 for making a recess 20, which is surrounded by the plate parts 3 and 7, communicate with the outside. The pressure receiving plate is constituted so that the slope face F can be brought into pressure contact by using the anchor member locked to underground. A recess-side inlet 23 and an outside outlet 24 of the communication passage 21 of the plate part 3 are displaced with respect to each other in a bottom plan view so as to be formed into the weep hole 22.

7. 发明专利

JP2001348819A FALLING OBJECT PREVENTIVE PILE 失效
公开(公告)号：JP2001348819A
公开(公告)日：2001-12-21
申请号：JP2000172636
申请日：2000-06-08
申请人： KUBOTA KK
发明人： EITO OSAMU , MORIZAKI MITSURU , NAKANO AKIRA
IPC分类号： E01F7/04 , E02D5/28
摘要： PROBLEM TO BE SOLVED: To provide a rational falling object preventive pile for restraining reduction in yield strength after reaching maximum bending yield strength and improving absorbed energy performance without reducing a deformation quantity of a pile by applying simple reinforcement to a pile body. SOLUTION: In this falling object preventive pile K having the pile body K1 by integrally forming a burying part 2 buried in the ground and a ground erected part 3 for restraining falling by receiving a falling object falling along an inclined place 1, a stiffening means S is locally arranged in a position except for both end parts of the pile body K1 and in a maximum bending moment acting position and/or the vicinity position for restraining cross-sectional deformation of the maximum bending moment acting position in the pile body K1 when the falling object collides with the ground erected part 3, and the stiffening means S is installed so that the pile body K1 receiving the bending moment are extendable, contractable and deformable in the lengthwise direction X of itself independently of the stiffening means S.

8. 发明专利

JPH09137547A STEEL-PIPE COLUMN 失效
公开(公告)号：JPH09137547A
公开(公告)日：1997-05-27
申请号：JP29638895
申请日：1995-11-15
申请人： KUBOTA KK
发明人： EITO OSAMU , MORIZAKI MITSURU , TAGANO KIMISUKE , HAMAZUKA TERUO , TOYOTOMI TOSHIBUMI , GUNDA AKIO
IPC分类号： E04B1/24 , B23K9/00 , B23K9/028 , E04C3/32
摘要： PROBLEM TO BE SOLVED: To prevent local deformation of a joint part by making a cylindrical joint part joined to a beam have a larger pipe thickness than the column main bodies connected to the upper and lower sides of the joint part, and disposing a diaphragm on the inner surface side of the joint part opposite to a beam flange disposed in the joint part. SOLUTION: The pipe thickness of a joint part is made larger than the column part 2, and the inner circumferential surface of the joint part has a circular section, so that the yield strength held as a joint part can be secured. In this case, a diaphragm 5 is inserted in the inner circumferential surface of the joint part, and especially the local deformation of the joint part can be held down to the minimum against the reduction change of diameter of the section of the joint part. Accordingly, lowering of rigidity of the frame of a structure can be effectively prevented. As the local yield strength of the joint part is determined by the local buckling on the compression side, the diaphragm 5 prevents the local buckling of the joint part. Thus, the structure of the joint part can be simplified to reduce the occurrence of local deformation of the joint part, and furthermore, it is possible to obtain a steel-pipe column 1 having a high economical efficiency.

9. 发明专利

JPH09137546A STEEL-PIPE COLUMN 失效
公开(公告)号：JPH09137546A
公开(公告)日：1997-05-27
申请号：JP29638795
申请日：1995-11-15
申请人： KUBOTA KK
发明人： EITO OSAMU , GUNDA AKIO , TOYOTOMI TOSHIBUMI
IPC分类号： E04B1/24 , B23K9/00 , B23K9/028 , E04C3/32
摘要： PROBLEM TO BE SOLVED: To lessen the occurrence of local deformation while the structure of a joint part is simplified by welding the respective column main bodies to both ends of a joint part joined to a beam and disposing a diaphragm in the inner surface side of the end part of the substantially cylindrical joint part. SOLUTION: A conical first fitting surface is disposed on the inner circumferential surface of the end part of a joint part 3, for example, on the center side of the joint part 3, and a second fitting surface freely fitted to the first fitting surface is disposed on the outer edge part of the diaphragm 5. In this case, the diaphragm 5 is inserted from an opening of the joint part 3, the second fitting surface is internally fitted to the first fitting surface, and fillet welding extending from the diaphragm to the inner surface of the joint part 3 is performed in several portions to prevent shifting. Thus, the diaphragm 5 is simply fitted to the joint part 5, the local deformation of the joint part 3 can be surely decreased from the early stage of deformation, and the local yield strength can be improved.

10. 发明专利

JPH0754399A JOINTING METHOD OF STEEL PIPE COLUMN AND BEAM 失效
公开(公告)号：JPH0754399A
公开(公告)日：1995-02-28
申请号：JP20438393
申请日：1993-08-19
申请人： KUBOTA KK
发明人： EITO OSAMU , NOMURA TADASHI
IPC分类号： E04B1/24
摘要： PURPOSE:To enable an H-shape steel beam to be inserted between adjacent steel pipe columns from the horizontal direction. CONSTITUTION:Cutout parts K formed by cutting out the half or almost half of the width of the end parts of the upper and lower flanges 2a, 2b of an H- shape steel beam 2 (or cutting out by the length part exceeding the width of a gusset plate in the case of the gusset plate height being larger than the height of the beam) are previously formed at both end parts of the upper and lower flanges 2a, 2b. After the insert-fitting work of the beam 2, a fit-in plate of the same shape as the cutout part K is fitted into the cutout part K and welded.

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