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1. 发明专利

JPH11152898A JOINT CONSTRUCTION OF STEEL IN STRUCTURE 失效
公开(公告)号：JPH11152898A
公开(公告)日：1999-06-08
申请号：JP33785297
申请日：1997-11-21
申请人： MINI PUBLIC WORKS , SENTAN KENSETSU GIJUTSU CENTER , ISHIKAWAJIMA HARIMA HEAVY IND , OKUMURA CORP , KAWASAKI STEEL CO , SATO KOGYO , SHIMIZU CONSTRUCTION CO LTD , TOKYU KENSETSU KK , TOBISHIMA CONSTRUCT CO LTD , NIPPON HUME PIPE , HAZAMA GUMI , FUJITA CORP , MAEDA CONSTRUCTION
发明人： ASHIDACHI TAKUYA , KOGA YASUYUKI , TSUKIDA YOSHIHIRO , AZUMA KUNIKAZU , OOKUBO HIROHISA , IWATO MASAHIKO , KIKUCHI HIROSHI , SHIBUSAWA SHIGEHIKO , NAGURA MASAO , IWASA SEIJI , MURAKAMI YUJI , KAMIYA TOMEI , HARA NATSUO
IPC分类号： E04G21/12 , E04C5/06
摘要： PROBLEM TO BE SOLVED: To attain rationalization of a work and labor saving and accurately assemble by like a ladder connecting a pair of steel plates for joining arranged in the direction of height inside opposed belt reinforcement groups through a plurality of intermediate steels to be joined together. SOLUTION: In a wall part B, a pair of steel plates 3 for joining extending in the direction of height are arranged inside respective opposed belt reinforcement groups, both belt reinforcement groups 2, 2 are fixed, and the steel plates 3 are like a ladder connected together through a plurality of intermediate belt steels 4 to be fastened with high strength bolts 5. The steel plats 3, 3 and the intermediate belt steels 4 are arranged properly with a space from each other. In a corner part C, the outside belt reinforcement groups 2 are fixed at right angles with the steel plates 3 for joining, and the inside belt reinforcement groups are fixed in parallel with fixing steel plates 6 for wall. They are connected together like a ladder through a plurality of intermediate belt steels 14 for corner to be joined together with high strength bolts 5. The intermediate belt steels for corner 14, 14 can be crossed on the same height to be rigidly joined together. Hereby, labor is saved, and the construction period can be shortened.

2. 发明专利

JPH11152899A CONSTRUCTION METHOD OF TOWER STRUCTURE AND CONSTRUCTION THEREOF 失效
公开(公告)号：JPH11152899A
公开(公告)日：1999-06-08
申请号：JP33785397
申请日：1997-11-21
申请人： MINI PUBLIC WORKS , SENTAN KENSETSU GIJUTSU CENTER , ISHIKAWAJIMA HARIMA HEAVY IND , OKUMURA CORP , KAWASAKI STEEL CO , SATO KOGYO , SHIMIZU CONSTRUCTION CO LTD , TOKYU KENSETSU KK , TOBISHIMA CONSTRUCT CO LTD , NIPPON HUME PIPE , HAZAMA GUMI , FUJITA CORP , MAEDA CONSTRUCTION
发明人： ASHIDACHI TAKUYA , KOGA YASUYUKI , TSUKIDA YOSHIHIRO , AZUMA KUNIKAZU , OOKUBO HIROHISA , IWATO MASAHIKO , KIKUCHI HIROSHI , SHIBUSAWA SHIGEHIKO , NAGURA MASAO , IWASA SEIJI , MURAKAMI YUJI , KAMIYA TOMEI , HARA NATSUO
IPC分类号： E01D19/02 , E04G21/14 , E04H12/12
摘要： PROBLEM TO BE SOLVED: To efficiently assemble reinforcements by erecting vertical steel along a skeleton, mounting reinforcement assemblies from the outside to form reinforcing materials at site, and placing concrete in a form to construct a tower structure. SOLUTION: An inner precast slab 9 is erected on a bridge pier foundation, vertical steel 3 is placed on a steel projecting from the bridge pier foundation, they are fastened together by welding or by bolts or rivets through joint plates. Reinforcement assemblies 4 are mounted on the vertical steel 3 from the outside, and after the lower parts are connected to reinforcements projecting from the bridge pier foundation, an outer precast slab 10 is erected. Concrete is placed in a space between the inner and outer precast slabs 9, 10 to construct the skeleton 2 of the bridge pier 1. The reinforcement assembly 4 is formed by arranging helically surrounding reinforcements 6 around a plurality of vertical reinforcements 5. Belt reinforcements are previously buried in the inner/outer precast slabs 9, 10, but they can be fitted in the exposed state inside. Hereby the used reinforcement quantity can be remarkably reduced, and the assembling work can be saved in labor and made efficient.

3. 发明专利

JP2000073339A INSPECTION GALLERY IN FILL-TYPE DAM AND CONSTRUCTION METHOD OF INSPECTION GALLERY IN FILL-TYPE DAM 失效
公开(公告)号：JP2000073339A
公开(公告)日：2000-03-07
申请号：JP20389098
申请日：1998-07-17
申请人： NATL RES INST OF AGRICULTURAL , MAEDA CONSTRUCTION , KUMAGAI GUMI CO LTD , ZENITAKA CORP , TOBISHIMA CONSTRUCT CO LTD , JAPAN DEV & CONSTRUCTION , FUJIMI KOKEN KK , MAEDA SEISAKUSHO
发明人： NAKAJIMA KENJIRO , YASUNAKA MASAMI , ASANO ISAMU , YOKOZAWA KAZUO , AKASAKA YUJI , HARA NATSUO , MORIMOTO HIDEKI , TAKADA TOSHIYUKI , IWASAKI NORIO , HIROSE SHIGEMICHI , SAWARA SEIYA , HONGO YUTAKA , YAZAWA TSUGIO
IPC分类号： E02B7/00 , E02B7/06 , E02D27/40
摘要： PROBLEM TO BE SOLVED: To provide an inspection gallery in a fill-type dam and a construction method of the inspection gallery in the fill-type dam, shortening a construction period, improving workability through the decrease of work processes and reducing the total cost. SOLUTION: Invert concrete 4 is placed at a bottom part of a ditch part 20 provided by excavating a foundation rock bed of a fill-type dam, and an arch 6 of an opening part of an inspection gallery 1 is constructed on the invert concrete 4. Steel fiber reinforced concrete is then placed inside the ditch part 20 and on the outer peripheral side of the arch 6 of the opening part of the inspection gallery 1 to form concrete 5 for reinforcing the outer peripheral part of the inspection gallery 1.

4. 发明专利

JPH0978762A STEEL FRAMED CONCRETE STRUCTURE 失效
公开(公告)号：JPH0978762A
公开(公告)日：1997-03-25
申请号：JP23883895
申请日：1995-09-18
申请人： MAEDA CONSTRUCTION , KAWASAKI STEEL CO
发明人： YOKOZAWA KAZUO , SHINODA YOSHIO , KONO KAZUNORI , MISHIMA TETSUYA , HARA NATSUO , IMANISHI HIDEKIMI , HASHIMOTO OSAMI
IPC分类号： E01D19/02 , E04B1/16 , E04B2/86 , E04C3/34
摘要： PROBLEM TO BE SOLVED: To shorten the construction period by providing a steel frame inside of a precast form which is obtained by mixing the reinforcing material in mortar, and placing concrete inside of this precast framework. SOLUTION: A cylindrical concrete precast material 7 is stood at a central part of a foundation 2, and steel frames 4 made of H-shaped steel, which are respectively provided with projections in the surface thereof, are stood in the periphery of the precast material 7. The reinforcing material 8 made of stainless steel fiber is mixed in the cement group mortar at 20-60% of water-cement ratio so as to form a precast form 1. Assembly reinforcements 6 and a tie-hoop 3 are fitted onto the circumference of the inside of the precast framework 1, and a required number of the precast form 1 and the steel frame 4 are connected, and thereafter, concrete is placed. Crack dispersibility and toughness of the steel framed concrete structure can be thereby remarkably improved.

5. 发明专利

JPH08128151A PRECAST FORM BOARD 失效
公开(公告)号：JPH08128151A
公开(公告)日：1996-05-21
申请号：JP26783494
申请日：1994-10-31
申请人： MAEDA CONSTRUCTION
发明人： YOKOZAWA KAZUO , SHINODA YOSHIO , HARA NATSUO , IMANISHI HIDEKIMI
IPC分类号： E04B2/86 , E04C2/06 , E04G9/00
摘要： PURPOSE: To enhance strength and workability by installing a high tensile wire inside a precast board formed with high strength mortar or the like, and what is more, installing a plurality of ribs and fine projected and recessed parts inside a form. CONSTITUTION: A high tension wire 2 made of stainless steel fiber or the like inside a precast board 1 so as to enhance tensile strength and reduce the width of cracks dramatically. Then, the wire 2 is dispersively mixed in high strength mortar or prestressed, thereby enhancing bending strength. In case when ribs 3 are placed inside a form, the thickness of the ribs 3 is used as a reinforcement covering, thereby securing a specified thickness of concrete from the surface of a concrete structure to the reinforcements. Furthermore, when fine uneven parts 4 are installed on the inner surface of the precast board 1, the surface area will be increased so that the integrality with the cast concrete may be enhanced. This construction makes it possible to inhibit the generation of cracks and enhance durability and its appearance, and what is more, to facilitate reinforcement work as well.

6. 发明专利

JPH0892942A CONCRETE DAM CONSTRUCTION ROOFING DEVICE 失效
公开(公告)号：JPH0892942A
公开(公告)日：1996-04-09
申请号：JP23190294
申请日：1994-09-27
申请人： MAEDA CONSTRUCTION
发明人： OGAWA AKIJI , FUNAHASHI MASASHI , AKASAKA YUJI , HARA NATSUO , ASAI HIDEAKI
IPC分类号： E02B7/00 , E04G21/28
摘要： PURPOSE: To execute work even in rainfall or snowfall, and shorten a construction period by installing a traveling part capable of moving freely and a compressed air-filled roof to each traveling part on both sides of a concrete placement space in a dam construction area. CONSTITUTION: A traveling part 51 of a main body frame 52 provided with tires 53 and 54 and a movable wheel 56 and a traveling wheel 59, a lifting frame 58, a lifting jack 57 and a wheel jack 55 is installed to the upper end of a precast board (form) on the upstream and downstream sides of a concrete placement space S1. A compressed air-filled roof 60 is installed between the lifting frame 58 on both sides where the roof is designed to be wound and extended freely. When it is required to cast new concrete on an existing concrete space, the movable wheel 56 is moved to the top of an upper stage form 1 with the movable wheel jack 55 and then, the listing frame 58 is moved upward with the listing jack 57 where the compressed air-filled roof 60 is moved upward from the top of the form 1. Then, a concrete construction roofing device 50 is moved to the side of the upper form 1 by means of the ti res 53 and 54 installed to the main body frame 52.

7. 发明专利

JPH0657710A CONSTRUCTION OF CONCRETE MAIN TOWER 失效
公开(公告)号：JPH0657710A
公开(公告)日：1994-03-01
申请号：JP20929692
申请日：1992-08-05
申请人： MAEDA CONSTRUCTION
发明人： YOKOZAWA KAZUO , FUNAHASHI MASASHI , HARA NATSUO
IPC分类号： E01D11/00 , E01D19/02 , E01D19/14 , E01D21/00 , E04B1/16 , E04H12/12
摘要： PURPOSE:To construct a concrete main tower having a high operating efficiency and excellent appearance. CONSTITUTION:Concrete is placed into forms and a foundation section is built, the forms 22, 24 are formed by precast concrete panels in the upper section of the foundation section, reinforcing bars are arranged into the forms 22, 24. and concrete 26 is placed, thus constructing an intermediate section. The forms are formed by the precast concrete panels, into which the reinforcing bars are buried, in the upper section of the intermediate section, and concrete is placed into the forms and a top section is built.

8. 发明专利

JPH0868121A JOINT STRUCTURE BETWEEN PRECAST CONCRETE MEMBERS 失效
公开(公告)号：JPH0868121A
公开(公告)日：1996-03-12
申请号：JP20750294
申请日：1994-08-31
申请人： MAEDA CONSTRUCTION
发明人： YOKOZAWA KAZUO , SHINODA YOSHIO , TABATA MINORU , HARA NATSUO
IPC分类号： E04B1/61
摘要： PURPOSE: To firmly and easily connect precast concrete members together. CONSTITUTION: This joint structure between two or more precast concrete members 1 is provided with reinforcing bars 2 buried in the precast concrete members 1 and connecting reinforcing bars 3 surrounding the periphery of the reinforcing bars 2 and partially exposed to the outside. A connecting bar 4 is arranged near the connecting reinforcing bars 3 of the precast concrete members 1 to be connected, and concrete 5 is placed around the connecting reinforcing bars 3 and the connecting bar 4.

9. 发明专利

JPH0820935A CONSTRUCTION METHOD FOR DAM 失效
公开(公告)号：JPH0820935A
公开(公告)日：1996-01-23
申请号：JP15485094
申请日：1994-07-06
申请人： MAEDA CONSTRUCTION
发明人： OGAWA AKIKAZU , FUNAHASHI MASASHI , AKASAKA YUJI , HARA NATSUO , ASAI HIDEAKI
IPC分类号： E02B7/00 , E04B1/343 , E04G21/14 , E04G21/28
摘要： PURPOSE:To move a roof easily in accordance with movement of construction area, carry out a broad range of work, realize thereby such a method as being not influenced by weather, promote execution efficiency, and reduce a construction cost as well as the execution of regular work such as casting and cure of concrete specially even in rainy weather in construction of a large-sized structure such as a dam in open air. CONSTITUTION:In the case a concrete dam is constructed by a layer placing method, a mobile type roof device Y equipped with a roof 10 covering upward of blocks to be constructed, a plurality of bearing mechanisms 20 bearing the roof 10 and positioning them on adjacent blocks on both right and left blocks to the constructed and a mobile device 30 for running and moving the bearing mechanisms together with the roof is used. While covering construction blocks B1 with the roof 10, construction is carried out while moving the roof 10 by a lift car 30 with the movement of construction area.

10. 发明专利

JPH0782805A REINFORCING STRUCTURE FOR JOINT OF CONCRETE MADE MEMBER 失效
公开(公告)号：JPH0782805A
公开(公告)日：1995-03-28
申请号：JP22908793
申请日：1993-09-14
申请人： MAEDA CONSTRUCTION
发明人： SHINODA YOSHIO , HARA NATSUO , IMANISHI HIDEKIMI
IPC分类号： E04B1/04 , E04B1/16 , E04B1/21 , E04B1/61 , E04B2/56
摘要： PURPOSE:To eliminate various restrictions caused by existence of a joint and to satisfactory accomplish jointing work at a job site without any special complication by reinforcing a joint part to make it a joint structure capable of preventing to its utmost, the problem of check and damage easily taking place on the joint part of concrete made members. CONSTITUTION:In the case of the reinforcing structure of the joint part of a concrete made member for jointing both concrete made members 1, 2, which are to be jointed together through joints 5a protruding beyond the respective joint end surfaces 1b, 2b, a fiber reinforcement material containing cement reinforcement panel 10, which is placed across both concrete made members, is affixed to the surface near the joint end faces of both concrete made members 1, 2. This reinforce panel 10 is bolted to both concrete made members 1, 2.

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