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1. 发明专利

JP2000144637A SUPPORT STRUCTURE FOR BRIDGE GIRDER IN EXTRUSION METHOD 失效
公开(公告)号：JP2000144637A
公开(公告)日：2000-05-26
申请号：JP32188198
申请日：1998-11-12
申请人： TAISEI CORP
发明人： KANAI SOUJI , MIYAUCHI MASAMI , MANCHU NAOYA , OKAGAWA HIDEYUKI
IPC分类号： E01D19/14 , E01D21/00 , E01D101/24
摘要： PROBLEM TO BE SOLVED: To provide a support structure for a bridge girder in an extrusion method generating no longitudinal imbalance even when the tensile force of diagonal members is complexly changed in sequence at the time of extrusion suspension and not causing the occurrence of cracks and the possibility of a bridge drop. SOLUTION: This support structure is provided with columns 1 erected at the center section between supports of a bridge girder to be extruded, saddles 2 provided at the apexes of the columns 1, diagonal members (temporary diagonal members 3) fixed with both end sections to the front and rear of the bridge girder respectively in the support direction and slidably suspended on the saddles 2 at the center section, and tensile force adjusting means (lifting jacks 4) vertically moving the saddles 2 to adjust the tensile force of the diagonal members (temporary diagonal members 3).

2. 发明专利

JPH11336022A SUPPORT STRUCTURE OF ARCH RING IN ARCH BRIDGE CONSTRUCTION 失效
公开(公告)号：JPH11336022A
公开(公告)日：1999-12-07
申请号：JP14700698
申请日：1998-05-28
申请人： TAISEI CORP
发明人： MIYAUCHI MASAMI , HORIGUCHI MASAICHI , MUKONO MOTOHARU , INAMORI HIROYASU
IPC分类号： E01D2/00 , E01D4/00 , E01D21/00
摘要： PROBLEM TO BE SOLVED: To provide a support structure of an arch ring in an arch bridge construction which can sufficiently withstand the internal stress caused by the dead weight of the arch ring stuck out to form a cantilever and can be safely and efficiently carried out because it does not require any replacement of laid horizontal members. SOLUTION: This support structure is constituted of a vertical member (end post 11) vertically erected from an abutment (arch abut 2) and provided with a retaining member (backstay 12) at the rear side, vertical members 13 erected from an arch ring 4 protruding forward from the abutment (arch abut 2), and diagonals 15 directly hanging the arch ring 4 at the diagomal forward side from the connection part of the vertical member (end post 11) or the vertical member 13 and the horizontal member 14. The horizontal members 14 are laid at a position lowered by a height relative to the construction of a reinforcing girder from the top of the vertical member (end post 11) or the vertical member 13.

3. 发明专利

JPH11107220A EXECUTION METHOD OF ARCH RIB 失效
公开(公告)号：JPH11107220A
公开(公告)日：1999-04-20
申请号：JP29041797
申请日：1997-10-07
申请人： TAISEI CORP
发明人： MIYAUCHI MASAMI , MANCHU NAOYA , IMAI YOSHIAKI , HARADA YOSHIHIRO
IPC分类号： E01D1/00 , E01D2/00 , E01D4/00 , E01D21/00 , E01D101/26
摘要： PROBLEM TO BE SOLVED: To provide the execution method of an arch rib, in which the placing works and removal works of excess concrete as seen in conventional methods are not required and by which the execution of works can be conducted economically. SOLUTION: A pyramidal pedestal 5 is arranged just under the vertical post 31 of a working truck 3 disposed at the front end of the rib 2. The pedestal 5 is installed by inserting a pin into a pinhole bored to the top face of a rib 2 section. A spherical support is mounted on the top face of the pedestal 5, and the extension works of the rib 2 are conducted by the working truck 3 supported by the vertical post 31 set up to the upper section of the pedestal 5. When the rib 2 is elongated by one span, the pedestal 5 is removed from the rib 2 section by extracting the pin.

4. 发明专利

JPH04179770A CONCRETE CONSTRUCTION JOINT METHOD AND PRECAST JOINT PLATE 失效
公开(公告)号：JPH04179770A
公开(公告)日：1992-06-26
申请号：JP30625990
申请日：1990-11-14
申请人： TAISEI CORP
发明人： KANAI SOUJI , SADAMITSU MASATO , MIYAUCHI MASAMI
IPC分类号： E01D21/00 , E04B1/16 , E04G13/00 , E04G21/02
摘要： PURPOSE:To make it possible to perform good construction joint by using a precast joint plate having uneven surface on both sides as a gable form, setting it to the end of a concrete structure to be extended, and placing concrete to the inside of the precast joint plate. CONSTITUTION:A precast joint plate 1 is basically constituted of a sectional shape of a concrete structure and the same shaped plate body. In the joint plate 1, both sides opposed to the joint are so formed that they have uneven surfaces 11 with coarse-grained ones, and other surfaces than those are finished evenly. Through-holes 12 into which reinforcing bars or PC steel materials are inserted are bored in the surface of the joint plate 1. Jigs 13 such as a plurality of inserts, etc., are buried into at least one side of the joint plate 1 at a certain interval. In the case of execution, a joint plate 1a is positioned to a free end of the existing bridge girder 2. After that, a reinforcing member 3a such as a reinforcing bar or PC steel material is projected from the joint plate 1a. Then, a joint plate 1b is set to the end of a structure to be extended by making use of a shoring form 5 necessary for extending the existing bridge girder 2 to fix. An extending reinforcing member 3b is connected to the end of the reinforcing member 3a to penetrate the joint plate 1b. Finally, concrete is placed in a space between the joint plates 1a and 1b. According to the constitution, the bridge girder 2 having good construction joint of the concrete can be extended.

5. 发明专利

JPH0455504A CONSTRUCTING METHOD FOR PRECAST WALL BALUSTRADE 失效
公开(公告)号：JPH0455504A
公开(公告)日：1992-02-24
申请号：JP16537790
申请日：1990-06-22
申请人： TAISEI CORP
发明人： KANAI TAKETSUGU , IMAI YOSHIAKI , MIYAUCHI MASAMI
IPC分类号： E01D19/10
摘要： PURPOSE:To improve workability by building a rigid box body in a wall balustrade in the longitudinal direction, to fit regulating bolts spirally on the bottom surface of the box body and to regulate the level of the wall balustrade, and by fixing a section between the box body bottom surface and a setting surface, with tie members, to fill a space section with fixing material. CONSTITUTION:At the time of constructing a girder main-body 2, at tie estimating positions of a wall balustrade l, anchor bolts 51 are embedded, and a bottom surface and the girder 2 are slightly separated from each other between them and the wall balustrade l is temporarily set on the girder main-body 2 via regulating bolts 4. After that, the bottom surface of an L-type frame 3 is penetrated with tie members 5 to be inserted into, and the lower sections of the tie members 5 are spirally fitted on joint devices 52, and the regulating bolts 4 are operated, and the level and inclination of the wall balustrade l are corrected, and washers 53 are set, and are temporarily fastened with setting nuts 54. Then, a section between the lower peripheral edge section of the wall balustrade 1 and the girder main-body 2 is sealed to be fixed up with the solidifying material 6 of non-shrinking mortar or the like from an injecting hole 36, and after it is hardened, the nuts 54 are really fastened, and the L-type frame 3 of the wall balustrade is filled up with solidifying material 7.

6. 发明专利

JP2000192609A FIXING JIG FOR PC STEEL MATERIAL 失效
公开(公告)号：JP2000192609A
公开(公告)日：2000-07-11
申请号：JP36715098
申请日：1998-12-24
申请人： TAISEI CORP
发明人： MIYAUCHI MASAMI , MANCHU NAOYA , MATSUOKA YASUNORI , SHINDO TAKEFUMI
IPC分类号： E04C5/08 , E04C5/10 , E04C5/12 , E04G21/12
摘要： PROBLEM TO BE SOLVED: To provide a fixing jig for a PC steel material, which is lightweight, by which the frictional loss of the PC steel material is decreased and which can be manufactured at a low cost and is used in the case of curved tension. SOLUTION: In the fixing jig 10 for the PC steel materials used for the curved tension of the PC steel materials, the jig 10 comprises a fixing jig body 1, in which a steel pipe is cut in a tapered shape in a side view and filler holes 1a for ultrahigh strength concrete are formed to a pipe wall, a single number or a plurality of internal steel pipes 2 being in an arcuate shape, inserted along the longitudinal direction of the fixing jig body 1 and used for guiding the PC steel materials 5, sealing slabs 3, which seal both cut surfaces of the fixing jig body 1 and to which holes are bored so that the pipe ports of the internal steel pipes 2 can be opened, and ultrahigh strength concrete filled from the filler holes 1a.

7. 发明专利

JPH11343609A BACKSTAY 失效
公开(公告)号：JPH11343609A
公开(公告)日：1999-12-14
申请号：JP15158998
申请日：1998-06-01
申请人： TAISEI CORP
发明人： MIYAUCHI MASAMI , HORIGUCHI MASAICHI , MUKONO MOTOHARU , OKADA HIROKI
IPC分类号： E01D19/02 , E01D4/00 , E04G21/12
摘要： PROBLEM TO BE SOLVED: To provide a backstay easy in the construction and removal and having a high strength to shorten the construction period and to reduce the construction cost of an arch bridge. SOLUTION: This backstay is provided with a form 8 composed of a sheathing board 9 inclinedly bridged between the back of the end post 2 and an arch abutment 1, and of a timbering 10 for supporting the sheathing board, a plurality of precast blocks 11 continuously laid on the sheathing board 9, and PC steel twisted wires 12 made of PC steel extendedly stretched through inside the precast blocks 11 between the end post 2 and the arch abutment 1. The PC steel twisted wires 12 are arranged in such a way that the intermediate part of the PC steel twisted wires 12 is bridged on the arch abutment 1 and the end thereof is fixed to the end post 2. The adjoining surface of the precast block 11 to be adjoined on the adjacent other precast block 11 is formed so as to be meshed with the other precast block 11.

8. 发明专利

JPH1082019A CONSTRUCTING METHOD OF PIER 失效
公开(公告)号：JPH1082019A
公开(公告)日：1998-03-31
申请号：JP25766496
申请日：1996-09-06
申请人： TAISEI CORP
发明人： MIYAUCHI MASAMI , MAKIMOTO YUKO , SATO NORIO
IPC分类号： E01D19/02 , E01D21/00 , E01D101/24 , E04G1/20 , E04G1/36 , E04G11/22 , E04G11/28
摘要： PROBLEM TO BE SOLVED: To execute a scaffolding simply by installing a crane body to a support mounted into a hollow concrete pier in a manner that the crane body can be lifted, suspending the scaffolding from a beam projected from the crane body and executing bar arrangement, form assembly, etc. SOLUTION: A support 2 for a tower crane is set up into the hollow section of the concrete pier 1 to be constructed. A crane body 3 is disposed along the support 2 while horizontal frame bodies 31, 32 at two upper and lower stages connected through jacks are arranged to the lower section of the main body 3, and the jacks are expanded and contracted and the main body 3 can be elevated. Overhanging beams 4 are installed radially from the main body 3 or the frames 31, 32, and a scaffolding 5 under the state, in which the outer circumference and inside of the pier 1 are surrounded, is suspended from the beams 4. Works such as bar arrangement, form assembly, concrete-placing preparation, etc., are repeated on the scaffolding 5, and the pier 1 is completed. Accordingly, the execution of works can be carried out economically by the scaffoldings at several stages, and the scaffolding corresponding to one step can be mounted in a short time by lifting a crane.

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