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1. 发明专利

JP2000017641A PILE HEAD PORTION WORKING METHOD FOR DIAGONALLY ASSEMBLED PILE 失效
公开(公告)号：JP2000017641A
公开(公告)日：2000-01-18
申请号：JP18506698
申请日：1998-06-30
申请人： TAKENAKA KOMUTEN CO , TAKENAKA DOBOKU , NIPPON CONCRETE IND CO LTD , MAEDA SEIKAN KK , MORICHO CORP
发明人： KAWARADA MINORU , TOTSUKA YASUAKI , NAKAJIMA HIDEAKI , ENDO HIROSHI , TADA MASAAKI , KURIHARA MORIATSU
IPC分类号： E02B17/00 , E02B17/04 , E02D5/24
摘要： PROBLEM TO BE SOLVED: To provide a working method for pile head portions to be diagonally assembled safely, reliably, quickly at a low cost without scaffolding and timbering. SOLUTION: This method comprises a process of uniting the pile head portions of at least two diagonal piles 1 into one diagonally assembled pile, a process of temporarily placing almost horizontally a half precuts slab 5 having a form of a working floor slab portion 5a inside a ring-shaped body surrounding the pile head portion of a diagonally assembled piles to a height position surrounding the pile head portion of the diagonally assembled pile, a process of jointing a pile head portion of a diagonally assembled pile 10 to the half precast slab 5 with a main jointing member such as angles or the like, and a process of removing a suspension jig 6 from a half precast slab and providing a bottom formwork to the opening at the lower end of the half precast slab 5. And the process of bar arrangement work is performed for the pile head portions of the diagonally assembled pile 10 and for the inside of the half precast slab 5, and concrete is placed inside the half precast slab 5, and then a process of making the pile head portion of the diagonally assembled pile 10 and the half precast slab 5 in one united body is added.

2. 发明专利

JPH05248036A 失效
公开(公告)号：JPH05248036A
公开(公告)日：1993-09-24
申请号：JP4954692
申请日：1992-03-06
申请人： NIPPON CONCRETE IND CO LTD , TAKENAKA KOMUTEN CO
发明人： MATSUBARA NORIYUKI , ENDO HIROSHI , OKAMOTO TATSUO , KANEDA KIYOSHI , NISHIZAWA HIDEKAZU , YAGIDATE TAKAHIKO
IPC分类号： E04B1/30 , E04C3/34
摘要： PURPOSE:To provide a steel pipe concrete pillar having a beam connecting part reinforced by a means to deal with automatic welding instead of a diaphragm. CONSTITUTION:A reinforcing steel plate 14 is piled to be welded on the part to be connected to a beam member 13 outside a steel pipe pillar body 11. The reinforcing steel plate 14 is a flat steel plate stuck on the sides of a prismatic pillar shaped steel pipe pillar body, and formed in one body with the sides of the prismatic pillar by means of welded joint 15 on the circumferential face. In the manufacture of this steel pipe concrete pillar, the steel pipe pillar body 11 is fitted into a rotary cylinder for centrifugal forming, concrete 12 is filled within the steel pipe pillar body 11, and the steel pipe pillar 11 is integratedly rotated by rotating the cylinder at high speed. Hereby, centrifugal force generated due to rotation is applied on the concrete 12 in the steel pipe pillar body 11, so as to tighten the concrete on the inner wall of the steel pipe pillar body 11. At this time, a hole 16 is generated by the centrifugal action.

3. 发明专利

JPH04221610A MANUFACTURE OF CENTRIFUGAL FORCE MOLDED STEEL PIPE 失效
公开(公告)号：JPH04221610A
公开(公告)日：1992-08-12
申请号：JP40606590
申请日：1990-12-25
申请人： TAKENAKA KOMUTEN CO , NIPPON CONCRETE IND CO LTD
发明人： OKAMOTO TATSUO , ENDO HIROSHI , HANDA KENJI , TOMIYAMA KATSUZO , HIGUCHI TATSUMI
IPC分类号： B28B11/24 , B28B11/00 , B28B21/58 , B28B21/68 , B28B21/72
摘要： PURPOSE:To manufacture a steel pipe concrete pillar which is a composite pillar of a steel pipe and concrete to be placed within the steel pipe and has a stabilized quality and high rigidity. CONSTITUTION:After centrifugal compaction is performed by casting the first layer concrete into a steel pipe by making the steel pipe into an outer shell, slurry within the first hollow part to be formed within the first layer concrete layer is removed and the first curing is performed. Then after the centrifugal compaction is performed again by casting the second layer concrete into the foregoing first hollow part, the second curing is performed by removing the slurry within the second hollow part to be formed within the second layer of a concrete layer. Furthermore, a plurality of concrete layers are formed at need, a hollow part formed finally is filled with mortar and shaped into a solid section, through those of which a manufacture of a centrifugal force molded steel pipe concrete pillar is provided.

4. 发明专利

JPH04221609A MANUFACTURE OF CENTRIFUGAL FORCE MOLDED STEEL PIPE CONCRETE PILLAR 失效
公开(公告)号：JPH04221609A
公开(公告)日：1992-08-12
申请号：JP40606390
申请日：1990-12-25
申请人： TAKENAKA KOMUTEN CO , NIPPON CONCRETE IND CO LTD
发明人： OKAMOTO TATSUO , ENDO HIROSHI , HANDA KENJI , TOMIYAMA KATSUZO , HIGUCHI TATSUMI
IPC分类号： B28B21/58 , B28B21/68 , B28B21/72 , E04C3/293 , E04C3/30
摘要： PURPOSE:To manufacture a steel pipe concrete pillar which is a composite pillar of a steel pipe and concrete to be placed within the steel pipe and has a stabilized quality and high rigidity. CONSTITUTION:After centrifugal compaction is performed by casting the first layer concrete in a steel pipe by making the steel pipe into an outer shell, slurry within a hollow part generated by the centrifugal compaction is caused to flow out. After performance of the centrifugal compaction again by casting the second concrete within the first layer concrete layer where the slurry is removed, the slurry generated within the second layer hollow part is caused to flow out and further a plurality of concrete layers are formed by a similar method at need, then the primary curing is performed and the cured body is demolded. The title method provides a manufacture of a centrifugal force molded steel pipe concrete pillar where mortar is not filled into the hollow part of a concrete layer molded by the manufacture of a centrifugal force molded steel pipe concrete pillar and the hollow part is formed into necessary minimum size, and the method where the concrete layer is made into a solid section by filling the foregoing mortar into the foregoing hollow part.

5. 发明专利

JPH05138641A PRODUCTION OF CENTRIFUGAL FORCE MOLDED STEEL PIPE CONCRETE PILLAR 失效
公开(公告)号：JPH05138641A
公开(公告)日：1993-06-08
申请号：JP40606490
申请日：1990-12-25
申请人： TAKENAKA KOMUTEN CO , NIPPON CONCRETE IND CO LTD
发明人： OKAMOTO TATSUO , ENDO HIROSHI , HANDA KENJI , TOMIYAMA KATSUZO , HIGUCHI TATSUMI
IPC分类号： B28B21/58 , B28B21/68 , B28B21/72 , E04C3/293 , E04C3/30
摘要： PURPOSE:To obtain a steel pipe concrete pillar of stable quality having high rigidity by repeating operation such that concrete is injected in a steel pipe to be subjected to centrifugal compaction and the slurry generated on the inner surface of the formed concrete layer is washed off to perform primary ageing and, after demolding, filling a hollow part with mortar. CONSTITUTION:A steel pipe is inserted in a form and a first concrete layer is formed in the steel pipe by centrifugal compaction. At this time since a slurry is generated on the inner peripheral surface of the concrete layer, said slurry is washed off by high pressure water. Next, a second concrete layer is formed. Since the slurry of the first layer is removed, the first and second concrete layers are closely bonded. Again, the inner peripheral surface of the second concrete layer is washed by high pressure water. This operation is repeated if necessary to form a plurality of concrete layers. After primary ageing, the steel pipe is demolded and the hollow part at the center part of the steel pipe is filled with mortar. The hollow part may be reduced to the necessary min. size without being filled with mortar.

6. 发明专利

JPH02209204A MANUFACTURE OF SC PILLAR 失效
公开(公告)号：JPH02209204A
公开(公告)日：1990-08-20
申请号：JP3235489
申请日：1989-02-09
申请人： TAKENAKA KOMUTEN CO , NIPPON CONCRETE IND CO LTD
发明人： MAENO TOSHIMOTO , OKAMOTO TATSUO , SUZUKI TORU , ENDO HIROSHI , TOMIYAMA KATSUZO , HIGUCHI TATSUMI
IPC分类号： E04C3/34 , B28B21/56 , B28B21/68
摘要： PURPOSE:To contrive securing of sufficient safety to buckling of a steel pipe, by a method wherein a low-strength mortar layer is formed on an inner circumferential surface of a steel pipe, and strength of the mortar is controlled. CONSTITUTION:A round or square steel pipe 1 set up on the inside of a concrete shuttering for centrifugal molding is processed by a centrifugal molding machine by pouring a little quantity of low-strength mortar, to begin with, and a thin mortar layer 2 of the extent of 5-20mm is lined on the inside of the steel pipe 1 with the centrifugal molding. After the steel pipe 1 under this state is put into a steam curing chamber for curing and mortar layer 2 is hardened, the same is processed again by the centrifugal molding machine by pouring concrete having necessary compression strength and a concrete layer 3 having the necessary compression strength is formed in the inside of the mortar layer 2 by the centrifugal molding. After curing and hardening of the concrete layer 3 having the necessary compression strength by putting again the steel pipe 1 under this state within the steam curing chamber, the inside of a hollow part generated in the central part is filled with the mortar 4 having the compression spring which is the same extent as that of the concrete layer 3.

7. 发明专利

JPH0949266A CONNECTING METHOD FOR STEEL PIPE MEMBER FILLED WITH REINFORCED CONCRETE 失效
公开(公告)号：JPH0949266A
公开(公告)日：1997-02-18
申请号：JP20007095
申请日：1995-08-04
申请人： NIPPON CONCRETE IND CO LTD
发明人： ENDO HIROSHI , TOYODA YOSHIHIRO
IPC分类号： E04B1/30 , E04B1/58
摘要： PROBLEM TO BE SOLVED: To heighten shearing resistance to the bending of a steel pipe column filled with concrete, and to heighten the strength of connection by preventing shearing stress from scattering at a connection part, at the time when the steel pipe columns, upper and lower, are connected with each other. SOLUTION: A reinforcing cage is placed near the inner-surface side of a steel pipe 2. After centrifugal molding, concrete is filled into a hollow part 11 at the central part which is formed thereby, and a solid column is formed, and thus a steel pipe member 1 is manufactured. In the case where the steel pipe members 1 are connected with each other, the end parts of main reinforcements, which are projected upward from the steel pipe member at the lower position, are put into a space part 7 formed between main reinforcement-securing member 6 and the steel pipe member 1 at the upper position, and beveled parts between the steel pipe members 1, upper and lower, are connected by welding. After that, grout is filled into the whole space part formed at the connected site, and all of them are integrally combined.

8. 发明专利

JPH07180285A CENTRIFUGALLY MOLDED RECTANGULAR HOLLOW BODY AND MANUFACTURING DEVICE THEREFOR 失效
公开(公告)号：JPH07180285A
公开(公告)日：1995-07-18
申请号：JP32854693
申请日：1993-12-24
申请人： NIPPON CONCRETE IND CO LTD
发明人： ENDO HIROSHI , TSUKAMOTO HIROSHI , TOYODA YOSHIHIRO
IPC分类号： E04C3/34 , B28B1/20 , B28B7/30
摘要： PURPOSE:To improve adhesion to post-cast concrete. CONSTITUTION:At the time of centrifugally molding a concrete rectangular hollow body such as a concrete column body, four inner frames are used for forming an approximately rectangular hollow section 12 analogous to the outline of a product body 11. Namely, the hollow section 12 is formed out of a circular hollow section 12a formed due to a centrifugal force and an inner frame mold releasing hollow section 12b formed on four sides of the section 12a via the inner frames. Also, a cotter 13 is projected from the product body 11 into the section 12b as an integral structure via four corners of the hollow section 12. The long-sized product body 11 has the cotter 12 at many positions at a constant pitch along an axial direction, and adhesion with post-cast concrete is thereby enhanced.

9. 发明专利

JPH0938941A PRODUCTION OF STEEL PIPE PILLAR COATED WITH CEMENTIOUS CURING MATERIAL 失效
公开(公告)号：JPH0938941A
公开(公告)日：1997-02-10
申请号：JP20839295
申请日：1995-07-24
申请人： NIPPON CONCRETE IND CO LTD , HIGUCHI ASSOC KK
发明人： ENDO HIROSHI , TOYODA YOSHIHIRO , HIGUCHI KYUGO
IPC分类号： E04B1/94 , B28B21/58 , B28B21/68 , E04C3/36
摘要： PROBLEM TO BE SOLVED: To easily obtain a coated steel pipe pillar having dense appearance in a factory without applying post-execution on the spot after the building of a pillar. SOLUTION: Through-holes 2 are bored in a steel pipe 1 at a plurality of the places of the coating part of the steel pipe so as to allow the outside and inside thereof to communicate with each other and reinforcing rods 3 are arranged to the outer periphery of the coating part and the coating part of the steel pipe 1 is put in a centrifugal molding form 6 to hold the annular space corresponding to the coating thickness of a cementitious curing material and an injection pipe is inserted into the steel pipe 1 and, after the cementitious curing material such as concrete or mortar is injected into the annular space from the leading and of the injection pipe, the centrifugal molding form 6 is rotated to allow the cementitinous curing material to flow in the circumferential annular space from the through-holes 2 of the steel pipe 1 by centrifugal action to fill the annular space to perform centrifugal molding.

10. 发明专利

JPH07102634A JOINT PART STRUCTURE OF PRECAST CONCRETE PILLAR 失效
公开(公告)号：JPH07102634A
公开(公告)日：1995-04-18
申请号：JP27774693
申请日：1993-10-09
申请人： NIPPON CONCRETE IND CO LTD
发明人： ENDO HIROSHI , TOYODA YOSHIHIRO , TSUKAMOTO HIROSHI
IPC分类号： E04B1/21
摘要： PURPOSE:To simplify structure of a mutual joint part of a precast concrete pillar and a lower part concrete member to join and a used member and to make mutual joining strength the same as an integral one or more. CONSTITUTION:On an inner surface of a pedestal part of a hollow preccast concrete pillar 1, a cavity part 3 the cross section of which is extended larger than a hollow part 2 is provided, the lower end part of a pillar main reinforcement 4 is exposed on the cavity part 3, a reinforcing bar 6 projectively provided on the upper end of a lower part concrete member (floor member or lower part pillar) 5 joining this hollow precast concrete pillar 1 is inserted into the cavity part 3 and overlapped on the pillar main reinforcement 4. Thereafter, it is solidified and integrated by intermediate deposited concrete filled and injected in the cavity part 3 from the upper end part of the hollow part 2 of the hollow precast concrete pillar 1.

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