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1. 发明专利

JPH0533595A COUPLING CONSTRUCTION OF SEGMENT 失效
公开(公告)号：JPH0533595A
公开(公告)日：1993-02-09
申请号：JP21306791
申请日：1991-07-31
申请人： NIPPON STEEL CORP , MATSUMOTO YOSHIJI
发明人： MATSUMOTO YOSHIJI , NAKAMURA MINORU , YOSHIZUMI TOSHIHIKO
IPC分类号： E04B1/61 , E21D11/08
摘要： PURPOSE:To couple easily and firmly tunnel lining segments in an accurate state. CONSTITUTION:Projection threads 5 are provided to outside flanges 3 and inside flanges 4 of a steel circumferential edge frame 2 in one segment to coupled. Recesses 7 fitting the projection threads 5 are provided on the outside flanges 3 and the inside flanges 4 of a steel circumferential edge frame 2 in the other sent 6, and a locking metal fitting 10 hearing an insertion hole is fixed to the steel circumferential edge frame 2 of the other segment. An insertion metal fitting 12 having an insertion projection 11 is fixed to the steel circumferential edge frame 2 in the other segment, and a segment drawing induced slope 13 is provided on the insertion projection 11. A pair of projection threads 5 are fitted to a pair of recesses 7, and the insertion projection 11 is inserted into the locking metal fitting.

2. 发明专利

JPH0431597A COUPLING STRUCTURE FOR STEEL-SHELL CONCRETE SEGMENT 失效
公开(公告)号：JPH0431597A
公开(公告)日：1992-02-03
申请号：JP13700390
申请日：1990-05-29
申请人： NIPPON STEEL CORP , MATSUMOTO YOSHIJI
发明人： MATSUMOTO YOSHIJI , NAKAMURA MINORU , YOSHIZUMI TOSHIHIKO
IPC分类号： E21D11/04
摘要： PURPOSE:To connect steel-shell concrete segments by a method in which projected bars are provided on the ground side and inside and intermediate of the tunnel for the side plates of a steel-shell concrete sigment, a water stopper is put into the groove between the projected bars, and mortar is also packed into the space formed by the side plates and the intermediate projected bar. CONSTITUTION:A water stopper 8 is fitted into the groove between the ground side projected bar 4 and the first intermediate projected bar 6 and also into the groove between the tunnel inner wall projected bar 5 and the second intermediate projected bar 7. The stopper 8 is projected from the tops of both-side projected bars. The projected bars 4 in the steel shell 2 of each steel-shell concretes 1 to be connected, the unnel inside projected bar 5, and the first and second intermediate projected bars 6 and 7 are connected at their tops by welding. Mortar 9 is packed into the space formed by the side plates 3 of each steel shell 2 and the first and second intermediate projected bars 6 and 7 to connect the steel shells 2. Water-stop property can thus be kept and couplers can be easily connected.

3. 发明专利

JP2788330B2 失效
公开(公告)号：JP2788330B2
公开(公告)日：1998-08-20
申请号：JP13700390
申请日：1990-05-29
申请人： SHINNIPPON SEITETSU KK , MATSUMOTO YOSHIJI
发明人： MATSUMOTO YOSHIJI , NAKAMURA MINORU , YOSHIZUMI TOSHIHIKO
IPC分类号： E21D11/04

4. 发明专利

JPH09268874A REINFORCING MEMBER AND COUPLING FORMED BY CONTINUOUS FIBER REINFORCED SHAFT BODY, CONNECTING METHOD THEREFOR AND CONCRETE WALL BODY 失效
公开(公告)号：JPH09268874A
公开(公告)日：1997-10-14
申请号：JP9589296
申请日：1996-03-27
申请人： NIPPON STEEL CORP
发明人： NAKA RIYOUICHI , YOSHIZUMI TOSHIHIKO , HAYASHIDA MICHIYA , MAIKUMA HIRONORI
IPC分类号： E21D5/10 , E21D5/11 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To enable sure connection without skill by vertically connecting fiber reinforced resin-made continuous fiber reinforced shafts of a specified form to each other, disposing the same at designated spaces like a ring, and engaging the upper and lower taper surfaces to be unseparably contained. SOLUTION: A continuous fiber reinforced shaft 10 made by carbon fiber reinforced resin comprises a circular-arc cross section widening part 14 widened at a designated angle of inclination upward and a circular-arc cross section widening part 14a widened at a designated angle of inclination similarly downward which are provided at the upper and lower ends of the middle part 13. Plural continuous fiber reinforced shafts 10 are disposed at designated spaces like a ring, and both side taper surfaces 15, 15 of the respective circular arc cross section widening parts 14, 14a positioned in the upper and lower sides are engaged with each other to connect the shafts to each other. Further inside the upper and lower circular-arc cross section widening parts 14, 14a, where the taper surfaces 15 of the continuous fiber reinforced shafts 10 are engaged with each other, inner cylinders 16 having the substantially same diameter as the above parts 14, 14a are disposed, and an outer cylinder 17 is fitted to the outside to contain the respective circular-arc cross section widening parts 14, 14a.

5. 发明专利

JPH07119304A REINFORCING BAR, REINFORCED CAGE, AND REINFORCED CONCRETE STRUCTURE 失效
公开(公告)号：JPH07119304A
公开(公告)日：1995-05-09
申请号：JP29009393
申请日：1993-10-25
申请人： NIPPON STEEL CORP
发明人： OKIMOTO MASAYUKI , YOSHIZUMI TOSHIHIKO
IPC分类号： E01D19/02 , E04G21/12
摘要： PURPOSE:To provide reinforcing bars for a reinforced concrete structure, a reinforcing bar cage, and a reinforced concrete structure wherein structure is simplified, manufacture is facilitated, workability of erection of reinforcing bars, and economical efficiency and a reinforcing effect are excellent. CONSTITUTION:A reinforcing bar 1 comprises a columnar steel 2 to perform a role of a main reinforcing bar in a vertical direction, and a loop-form stirrup material 3 with which the columnar steel 2 is surrounded and which crosses the axis of the columnar steel 2. An H-steel having through-holes 4 serving to reduce weight and be formed integrally with concrete 5 is used as the columnar steel 2. A bent loop bar-form reinforcing bar is used as the loop-form stirrup material 3. A number of the reinforcing bars 1 are arranged in juxtaposition such that the loop-form stirrup materials 3 of the adjoining reinforcing bars 1 are overlapped with each other by a given amount. The columnar steel 6 is inserted in the overlapped part to form a reinforcing bar cage. By installing forms 25 and placing the concrete 5, a bridge pier A of reinforced concrete structure where the reinforcing bars 1 are arranged is completed.

6. 发明专利

JPH05321357A CORNER CONNECTING STRUCTURE FOR REINFORCED CONCRETE BOTTOM SLAB AND COMPOSITE STRUCTURAL WALL 失效
公开(公告)号：JPH05321357A
公开(公告)日：1993-12-07
申请号：JP15013392
申请日：1992-05-19
申请人： NIPPON STEEL CORP
发明人： YOSHIZUMI TOSHIHIKO , TERASAKI SHIGEKI , KATSURA TAKUZO
IPC分类号： E02D29/00 , E04B1/04 , E04B1/61
摘要： PURPOSE:To greatly reduce the cost of construction by a method in which concrete is placed into a steel unit consisting of facing steels set on both sides to form a composite structural wall, and the steel unit is divided into upper and lower parts and connected with concrete. CONSTITUTION:Facing steels 1 and 2 attached with reinforcing steel ribs 12 for preventing buckling are set on both sides and concrete 4 is placed to form a composite structural wall 5. In the corner connection 7 between the wall 5 and areinforced concrete bottom slab 6, a steel unit 3 is divided in the lengthwise direction to form a lower steel unit 8 and an upper steel unit 9. The unit 8 is beforehand fixed to the concrete bottom slab 6 and fixed by welding to the unit 9. The needs for great-scale facility for fixing the steel units can thus be eliminated.

7. 发明专利

JPH0390705A JOINING METHOD FOR STEEL PIPE PILE 失效
公开(公告)号：JPH0390705A
公开(公告)日：1991-04-16
申请号：JP22849889
申请日：1989-09-04
申请人： NIPPON STEEL CORP
发明人： YOSHIZUMI TOSHIHIKO , MIKI KATSUMI , YAGI TAKAYOSHI , FUTAMURA HAJIME
IPC分类号： E02D5/24
摘要： PURPOSE:To reduce the cost and to improve the working efficiency by a method wherein the approximate half length of a reinforcing inner sheath pipe is securely inserted in advance into the bore of the tip of an upper steel pipe pile and a gap between a lower steel pipe and the reinforcing inner sheath pipe is filled with a filling curing material through a filling curing material injection pipe. CONSTITUTION:A reinforcing inner sheath pipe 18 is inserted in the bore of an upper steel pipe pile 1, and the tip of a filling curing material injection pipe 30 is inserted in a hole 31 formed in the end part of the reinforcing inner sheath pipe 18. The upper steel pipe pile 1 is inserted in and joined with a lower steel pipe pile 2, already driven in a vertical shaft 36 excavated in a land-slide suppressing spot 35, by using a crane vehicle 37. A through-hole 39 is formed in the slightly upper part of a faucet joint 1a of the upper steel pipe pile 1, and a through-hole 40 is also formed in the reinforcing inner sheath pipe 18. A filling curing material injection pipe 41 is inserted through the through-holes 39 and 40 from the outside of the upper steel pipe pile 1 toward the bore of the reinforcing inner sheath pipe 18, and engaged with a through-hole 42 from the inside toward the outside of the reinforcing inner sheath pipe 18. The upper steel pipe pile 1 is lifted down from above and inserted internally of the lower steel pipe pile 2 to complete joint engagement of faucet joints 1a and 2a.

8. 发明专利

JPH02112521A CONSTRUCTION OF CYLINDRICAL STRUCTURE AND STEEL SEGMENT THEREFOR 失效
公开(公告)号：JPH02112521A
公开(公告)日：1990-04-25
申请号：JP26293488
申请日：1988-10-20
申请人： NIPPON STEEL CORP
发明人： OKIMOTO MASAYUKI , YOSHIZUMI TOSHIHIKO
IPC分类号： E02D5/68 , E04H7/06 , E21D11/14
摘要： PURPOSE:To make a construction with high reliability and advantageous economic efficiency by making friction coupling of steel segments consisting of a skin plate and grillage ribs through splices and constructing a circular segment wall to the peripheral surface of a cylindrical excavation hole to fill concrete. CONSTITUTION:Grillage ribs 5 constituted of horizontal ribs 3 to be curved so as to adhere to the circumferential surface 2a of a skin plate 2 to be curved on the basis of a set curvature and vertical ribs 4 having sides adhered to the circumferential surface 2a as well are welded. Friction coupling joints 9 provided with bolt connecting through-holes 6 are to the ends of the horizontal ribs 3 and vertical ribs 4, and a gap blocking skirt metal fittings 10 is welded to the outside 2b of the skin plate 2. In addition, adjacent steel segments 1 are such that the friction coupling joints 9a and 9b of the vertical ribs 4 to be hung on the grillage ribs 5 and 5 coming into contact with each other are rubbed and coupled by friction coupling high strength bolts 13a and 13b through slices 12a and 12b. According to the constitution, they are excellent in strength, so that the breakdown caused by big bending or shearing force can be prevented.

9. 发明专利

JPS63108920A MANUFACTURE OF STEEL SLEEPER HAVING PAWL 失效
公开(公告)号：JPS63108920A
公开(公告)日：1988-05-13
申请号：JP25526286
申请日：1986-10-27
申请人： NIPPON STEEL CORP , TAIHEI KOGYO KK
发明人： ISA TAKAYOSHI , YOSHIZUMI TOSHIHIKO , KAWAMURA AKIYOSHI , KAWAGUCHI TAKEHIRO , IKEHATA HIROMI
IPC分类号： B21D7/06 , E01B3/16
摘要： PURPOSE:To prevent generation of deformation and to perform smooth die bending by concurrently pressing both end parts of a channel steel by an upper die punch device provided with a die bend punch at the center and a bending punch at both end parts. CONSTITUTION:A channel steel 1 is supinely put on bending dies 16a, 16b of a lower die device 17 and bending punches 13a, 13b of an upper punch device 14 abut on the channel 1. When the punch device 14 is pressed down, both the end parts of the channel 1 are deformed into an outward opened flat shape and are bent at the part being in contact with the bending punches 13a, 13b. Then, the punch device 14 is further pressed down and a die bending punch 12 presses so that the back of the channel 1 abuts on a guide bending die 15. On the other hand, the bending operation for both the end parts by the bending punches 13a, 13b and the bending dies 16a, 16b is continued, so that the die bending by the punch 12 and die 15 and the bending for both end parts are concurrently finished. Thus, a steel sleeper having pawls is completed by one press stage.

10. 发明专利

JPH07279591A COUPLING STRUCTURE OF SEGMENT 失效
公开(公告)号：JPH07279591A
公开(公告)日：1995-10-27
申请号：JP9544794
申请日：1994-04-11
申请人： NIPPON STEEL CORP
发明人： YOSHIZUMI TOSHIHIKO , NAKAMURA MINORU
IPC分类号： E21D11/08
摘要： PURPOSE:To reduce the manufacturing cost of a segment and reduce the excavation sectional surface in the shield excavation, by firmly connecting segments so that the bending strength and bending rigidity increase and by reducing the weight of the segment. CONSTITUTION:At the front end part of one segment 2 which constitutes a segment ring 1, a groove-shaped metal fitting 4 which projects towards the front part of the other segment 3 is fixed. At the rear end part of the other segment 3, a groove-shaped metal fitting 5 which projects toward the rear end part of one segment 2 is fixed. At the front end part of the other segment 3, a shaft metal fitting 6 arranged in the groove-shaped metal fitting 4 is fixed, and the part between the groove-shaped metal fitting 4 and the shaft metal fitting 6 is charged with the material 10 which hardens through the lapse of time, and the part between the groove-shaped metal fitting 5 and a shaft metal fitting 7 is charged with the material 10 which hardens through the lapse of time.

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