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21. 发明专利

JPH10280422A SLOPE PROTECTION BLOCK 失效
公开(公告)号：JPH10280422A
公开(公告)日：1998-10-20
申请号：JP10816897
申请日：1997-04-10
申请人： NIPPON DORO KODAN , KAWADA KENSETSU KK
发明人： KURIHARA KOJI , OOHI KUNIO
IPC分类号： E02D17/20
摘要： PROBLEM TO BE SOLVED: To attain cost reduction by making the weight of a slope protection block lightweight and eliminating trouble resulting from the division of the block. SOLUTION: A slope protection block 1 has an additional wall part 3 and a bearing plate rest 4 projected from the front of a vertical wall 2, and a plurality of detachable leg bodies 5 on the lower part of the front. Furthermore, the slope protection block 1 is a wall body made of precast concrete, and formed integrally with due consideration of weight suitable for the transport and erection works thereof. After an anchor is made tension, the vertical wall 2 falls in such a state as pressed to the natural ground and consequently the leg bodies 5 become free from the action of a load. Thus, the leg bodies 5 can be demounted for diversion to another slope protection block.

22. 发明专利

JPH10146820A FORM FOR MANUFACTURING PRECAST CONCRETE FLOOR PLATE 失效
公开(公告)号：JPH10146820A
公开(公告)日：1998-06-02
申请号：JP32471396
申请日：1996-11-20
申请人： KAWADA KENSETSU KK
发明人： TANADA MINORU , FURUMURA TAKASHI , TOMITA SEIICHI
IPC分类号： B28B7/10 , B28B7/00 , B28B23/04
摘要： PROBLEM TO BE SOLVED: To provide a form for manufacturing a precast concrete(PCa) floor plate in which a side form can be released smoothly and the ends of the flow plate are not feared to get damaged. SOLUTION: A rib 5 is protruded on a face plate 3a of a side form 3 and supported by a hinge component 6 supported rotatably on the side section of a bottom form 2. The side form 3 is supported rotatably to be movable sideways by a pin 6c of the hinge component 6 running through a slot 6d. A hole 7 is bored below the rib 5 and overlapped with a wedge hole 8a of an engaging plate 8. A second wedge hole 7c is formed between a reinforcing plate 7b for pressing a wedge 9 and the end 8b of the engaging plate 8. The wedge 9 is driven into the second wedge hole 7c and the side form B is moved horizontally in the direction of separating from the concrete surface at the time of releasing the form. Then the side form is rotated, and as the upper face of a thin plate section 103b is not brought into contact slidably with a bending section of the face plate 3a, the form can be released smoothly.

23. 发明专利

JPH09268520A PRECAST PANEL FOR BURIED FRAME AND CONSTRUCTION METHOD OF CONCRETE STRUCTURE USING PANEL 失效
公开(公告)号：JPH09268520A
公开(公告)日：1997-10-14
申请号：JP9936696
申请日：1996-03-27
申请人： ABE KOGYOSHO KK , ORIENTAL CONSTR CO LTD , KAWADA KENSETSU KK , KYOKUTO KOGYO KK , KOWA CONCRETE KK , SHOWA CONCRETE KOGYO KK , SUMITOMO CONST , DE P KENSETSU KOGYO KK , NIPPON KOGEN CONCRETE , NIPPON CONCRETE KK , NIPPON P S KK , NIPPON HUME PIPE , PS KK , P C KYORYO KK , FUJI P S KK
发明人： UMEHARA HIDEAKI , ITO TAKASHI , YAMAMOTO TORU , SAKAGUCHI NOBORU , KONDO MITSUO , TSUBOI MASAKATSU , ISOZUMI YASUO , KURIBAYASHI TAKEHIRO , TANIGUCHI HIROSHI , SHIMAMOTO MITSUO , FURUHASHI MASAYOSHI , KANBE SOUHEI , IWASA SEIJI , MATSUMOTO KIYOTO , HIBINO ISAO , KAMATA EIJI
IPC分类号： E01D21/00 , E01D19/14 , E04B1/16 , E04B2/86 , E04C2/06
摘要： PROBLEM TO BE SOLVED: To preferably use a precast panel for the construction of a large concrete structure and largely rationalize the construction works. SOLUTION: An initial prestressing force is applied in precast concrete panels 2 (2a, 2b) used as sheathing boards for embedded forms at the placing time of concrete on executing a bridge pier 1. These panels are pressed by the side pressure on placing concrete but the prestresses provided in the panels works effectively against the pressure on the panels 2 (2a, 2b). And it is not necessary to remove these panels constituting the form after concrete has been placed and hence, the labor for removing them can be eliminated.

24. 发明专利

JPH0892915A EXECUTION METHOD OF MULTI-SPAN CONTINUOUS STEEL GIRDER WITH REINFORCED CONCRETE FLOOR SLAB 失效
公开(公告)号：JPH0892915A
公开(公告)日：1996-04-09
申请号：JP25631194
申请日：1994-09-26
申请人： KAWADA KENSETSU KK
发明人： OOHI KUNIO
IPC分类号： E01D2/00 , E01D21/00
摘要： PURPOSE: To improve materials and the efficiency of processes by enabling the construction of an RC floor slab even from one direction. CONSTITUTION: Cast-in-place RC floor slabs 4 are placed on a top face and an intermediate section is borne by piers 3a, 3b... in a steel girder 1. Clamping members 6a, 6b are provided jointly to temporary posts 5a, 5b used when the steel girder 1 is built, and connected to the steel girder 1 before the RC floor slabs 4 are constructed and pulled down up to height at the time of completion, and the floor slabs are erected successively from the pier 2a side. The steel girder 1 in a section, in which concrete is not placed, is held in height at the time of completion at all times at that time. When the floor slabs are constructed while crossing the piers 3a, tensile load working to the temporary posts 5a, 5b, etc., is reduced successively. Height may also be adjusted by PC steel materials 8a, 8b... in place of the temporary posts.

25. 发明专利

JPH03275803A MOVING CONSTRUCTION DEVICE FOR HIGH LEVEL STRUCTURE 失效
公开(公告)号：JPH03275803A
公开(公告)日：1991-12-06
申请号：JP7211590
申请日：1990-03-23
申请人： KAWADA KENSETSU KK , SANSHIN KOGYO KK
发明人： KANAI SHUNSUKE , NAMEGAWA TOMOKAZU
IPC分类号： E01D21/00 , E01D101/40
摘要： PURPOSE:To facilitate a whole work containing a regulating work, to reduce a cost, and to increase the efficiency of a work by a method wherein a rear part supporting means formed separately from the construction mechanism body of a moving construction device is mounted on a construction mechanism removably in a manner to be regulatable of height. CONSTITUTION:A moving construction device 10 is constituted togetherwith a traveler 12 and a slide member 14, and a rear wheel mechanism 16 wherein a hydraulic jack 48 to elevate a pair of rollers 40 is arranged to the upper parts of a pair of the rollers 40 for nipping a rail 18b therebetween is provided. The rear wheel mechanism is removably mounted on a traveler 12 through a jack bracket 50, a mounting part 52 and the lock tool of a bottom chord member 22. The height of the roller 40 is regulated by means of the jack 48. When a regulating margin is high in relation to a longitudinal slope, the given mounting hole is selected from moulding holes respectively formed in the bracket 50 of the wheel mechanism 16 and a mounting part 52 of the traveler 12, and a position mounted on the traveler 12 is regulated and height is regulated by securing by means of the lock tool.

26. 发明专利

JPH03253603A ERECTION OF GIRDER BY TRANSFERABLE SUPPORT 失效
公开(公告)号：JPH03253603A
公开(公告)日：1991-11-12
申请号：JP4725190
申请日：1990-03-01
申请人： KAWADA KENSETSU KK , SANSHIN KOGYO KK
发明人： ITO YOSHIHIKO , NAMEGAWA TOMOKAZU
IPC分类号： E04G11/34 , E01D21/00
摘要： PURPOSE:To increase erection workability without need of reinforcement or prevention mechanism from rushing, by directly bearing all reacting forces through bridge piers, against the bearing of main girders through at least three supporting bases installed on bridge piers respectively or during transfer of the supporter. CONSTITUTION:Three support bases 20a-20c equipped with moterized feed rollers 24, 24 having support jacks 22 and brake mechanisms are installed on existing bridge piers 26a-26c. And a frame support 30 is suspended through a main girder 28. And after installation of a girder A, when transferring the support 30, the support base 20a is suspended by a transfer device 32 of the support base during moving forward the main girder 28 to remove it and fixed at the front bridge pier 26d. During that time, the main girder 28 is suspended by the bridge piers 26b, 26c through the support bases 20b, 20c and the main girder 28 moved forward is supported by the bridge piers 26b-26d. And further, the main girder is always directly supported by the bridge pier 26a or others through the support base 20a or others.

27. 发明专利

JPS63134703A MOVING CONSTRUCTION APPARATUS OF HIGH STRUCTURE 失效
公开(公告)号：JPS63134703A
公开(公告)日：1988-06-07
申请号：JP27960986
申请日：1986-11-26
申请人： KAWADA KENSETSU KK
发明人： ITO YOSHIHIKO
IPC分类号： E01D21/00 , E01D21/10 , E01D101/40

28. 发明专利

JP2948158B2 失效
公开(公告)号：JP2948158B2
公开(公告)日：1999-09-13
申请号：JP32471396
申请日：1996-11-20
申请人： KAWADA KENSETSU KK
发明人： TANADA MINORU , FURUMURA TAKASHI , TOMITA SEIICHI
IPC分类号： B28B7/10 , B28B7/00 , B28B23/04

29. 发明专利

JPH10219627A PC GIRDER ERECTION DEVICE 失效
公开(公告)号：JPH10219627A
公开(公告)日：1998-08-18
申请号：JP4004797
申请日：1997-02-07
申请人： KAWADA KENSETSU KK
发明人： OSADA HIROSHI , IZUMI TAIJI
IPC分类号： E01D21/00 , E01D2/00 , E01D21/06
摘要： PROBLEM TO BE SOLVED: To provide a device capable of setting a PC girder between following diameters even without movement of a portal type erection machine on the same bridge pier and preventing instability of the PC girder at the time of lifting it. SOLUTION: A lifting lug 20 to be used for a PC girder erection device is fastened and connected by a PC steel bar 23 projected from an upper surface of a PC girder 2 by providing a lifting point 22 on a head end of a beam member 21 hanging out in the bridge shaft direction from an end part of the PC girder 2. The PC steel bar 23 is anchored on an upper surface of the beam member 21 by pressing a bearing pressure plate 26. Hanging length of the beam member 21 is adjusted by properly selecting PC steel bar insertion holes drilled at a plural number of points in the bridge shaft direction. This PC girder erection device can lift down the PC girder 2 on a fulcrum even when a gantry type erection machine is not positioned immediately above the fulcrum and carry out lifting down work between following diameters without changing a position of a lifting point by changing a direction of the lifting lug.

30. 发明专利

JPH10114915A MOVING SCAFFOLDING FOR ASSEMBLING FLOOR SYSTEM REINFORCEMENTS 失效
公开(公告)号：JPH10114915A
公开(公告)日：1998-05-06
申请号：JP29110596
申请日：1996-10-14
申请人： KAWADA KENSETSU KK
发明人： OOHI KUNIO
IPC分类号： E04G1/36 , E01D21/00
摘要： PROBLEM TO BE SOLVED: To make it possible to eliminate the need for a large crane, to provide a working floor for assembling reinforcements separately from a shuttering, and to carry out assembly work for the shuttering and that for reinforcements in parallel. SOLUTION: A moving scaffolding 1 has a cart 3 which can move on a main girder 2 and a reinforcement lifting frame 4, and is furnished with also a column guide frame used to move the reinforcement lifting frame 4 separately. The cart 3 carries a working floor 7 fitting the shape of the underside of a floor system. The reinforcement lifting frame 4 has a longitudinal beam 11 placed astride a front column 8, a rear column 9 and an intermediate column 10, from which elevating members 12 and lifting hardware 14 are suspended and elevate block reinforcements 13. The rear column 9 is erected on the existing floor system 15 by extending a leg 9a. The intermediate column 10 is provided near the rear column 9 and is used at the time of setting the column guide frame and placing concrete.

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