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1. 发明专利

JPH0959934A EARTHQUAKE RESISTING AND REINFORCING STRUCTURE OF COLUMN-SHAPED STRUCTURE 失效
公开(公告)号：JPH0959934A
公开(公告)日：1997-03-04
申请号：JP21729695
申请日：1995-08-25
申请人： KAJIMA CORP
发明人： NAITO SHIZUO , NUISHIMA KENICHI , AKIYAMA TERU , KOSEKI KIKUO
IPC分类号： E02D27/00 , E01D19/02 , E01D21/00 , E01D22/00 , E04C3/34 , E04G23/02
摘要： PROBLEM TO BE SOLVED: To enhance the seismic performance of the whole structural system by using effectively the foundation of an existing column and improving both shear strength and ductility performance. SOLUTION: A tensile resisting material 3 is wound up around the outer peripheral surface of an existing RC column member 1 by way of spacers laid out with a space where an expandable permanent material 4 is injected into a clearance formed between the RC column member 1 and the tensile resisting member 3. This construction provides a transverse restricting pressure to the RC column member so that the expandable permanent member 4 may be positioned at the base of the RC column member 1, thereby providing a longitudinal reinforcing material 5, which is an anchor material to a foundation 6 inside the tensile resisting material 3 and connecting the longitudinal reinforcing material 5 to the R column member 1 indirectly by the transverse restricting pressure.

2. 发明专利

JPH03230874A METHOD FOR JOINING REINFORCING BARS 失效
公开(公告)号：JPH03230874A
公开(公告)日：1991-10-14
申请号：JP2363990
申请日：1990-02-03
申请人： KAJIMA CORP , SUMITOMO METAL IND
发明人： YASUNAGA MASAMICHI , AKIYAMA TERU , OSHIMA MASAAKI , KISHI SHINSUKE , MIYAZAKI JUNICHI , KASHIMOTO FUMIO
IPC分类号： E04G21/12 , B23K13/01
摘要： PURPOSE:To obtain joining of high quality without weakness by ribs by operation at high speed by inserting a steel disk provided with amorphous material thin layers between the end faces in opposition to joint the reinforcing bars. CONSTITUTION:The amorphous material thin layers 12 are formed on both sides of the steel disk 10 with various thicknesses having the outside diameter almost equal to the maximum diameter of the reinforcing bars 1 and 1 and the steel disk 10 with thickness in accordance with an interval between the end faces 1a and 1a in opposition is inserted between the end faces 1a and 1a in opposition of the corresponding reinforcing bars 1 and 1 to be connected in both major assembly reinforcing bars and then, both end faces 1a and 1a are abutted on each other via the disk 10 and both end faces 1a and 1a are joined by high-frequency induction heating. By this method, since the ribs 7 in the longitudinal direction on both sides of a joined part are perfectly coupled with the disk 10, respectively, the rib part does not cause weakness of joining.

3. 发明专利

JPS62280414A CONSTRUCTION WORK OF UNDERGROUND CONTINUOUS WALL 失效
公开(公告)号：JPS62280414A
公开(公告)日：1987-12-05
申请号：JP12403186
申请日：1986-05-28
申请人： KAJIMA CORP
发明人： KODAIRA FUMIO , YAMANOBE SHINICHI , AKIYAMA TERU
IPC分类号： E02D5/18 , E02D5/20
摘要： PURPOSE:To obtain sufficient connecting strength by allowing the horizontal beams of preceding and folowing panels to come near each other by a method in which the reinforcing bar cage end of the following panel is forcibly narrowed and inserted into horizontal beam of the preceding panel end, and a restrictive part is removed out. CONSTITUTION:The end of the horizontal beam 5 of a reinforcing bar cage 4 for following panels is forcibly narrowed by a restrictive part 6, e.g., steel wire, etc. The cage 4 is erected in a pit in such a way as to penetrate the narrowed portion of the beam 5 into the horizontal beams 3 of a preceding panel 1. The part 6 is then removed out to recover the beam 5 by elasticity to allow both the beams 3 and 5 to come near each other. Under the condition, concrete is placed into the pit to construct a following panel. An underground continuous wall having the preceding and following panels which are sufficiently connected with each other can thus be formed under the ground.

4. 发明专利

JP2001311224A ANCHOR STRUCTURE 失效
公开(公告)号：JP2001311224A
公开(公告)日：2001-11-09
申请号：JP2000127608
申请日：2000-04-27
申请人： KAJIMA CORP , MIYANAGA KK
发明人： YAMANAKA HIROYUKI , AKIYAMA TERU , YOSHIKAWA TADASHI , FURUICHI KOSUKE , YOSHIDA KENTARO , MIYANAGA MASAAKI
IPC分类号： E04B1/41
摘要： PROBLEM TO BE SOLVED: To enable sure anchoring in anchoring length shorter than a bonding type anchor, to improve initial stiffness and adhesive performance, to obtain high reliability even to cracking, to freely set anchoring length and projecting length and to enhance usability as an anchor metal fitting. SOLUTION: A hole wall is cut to an anchor hole 2 formed to an existing concrete structure 1, expanding a diameter and upwards tapered diameter- expanding section 2a is formed, the anchor metal fitting composed of a screw bar 14 as an anchor body, a tapered nut 15, in which an upwards tapered taper section 15a is formed to an upper section screwed to the screw bar 14, and a diameter-expanding metal fitting 16, in which an expanding piece 17 abutted against the tapered section 15a of the tapered nut 15 and pushed and expanded is formed to the lower section of a ring body 19 in a skirt shape, is inserted into the anchor hole 2, the diameter-expanding metal fitting 16 is pushed down by a jig and the expanding piece 17 is expanded and the expanding piece 17 is engaged with the diameter-expanding section 2a of the hole wall, and an opening between the screw bar 14 and the anchor hole 2 is filled with fillers 22.

5. 发明专利

JPH1018785A JOINT STRUCTURE FOR SEGMENT 失效
公开(公告)号：JPH1018785A
公开(公告)日：1998-01-20
申请号：JP16925196
申请日：1996-06-28
申请人： KAJIMA CORP
发明人： YARI NOBUAKI , NAKAGAWA MASAYOSHI , AKIYAMA TERU , AMANO REIKO , ISHIHARA YOSHIMITSU
IPC分类号： E21D11/08
摘要： PROBLEM TO BE SOLVED: To provide a highly rigid joint structure with which segments in a primary lining segment ring can easily coupled one another, and in which the joint has a high strength. SOLUTION: A joint structure comprises a reinforcing means laid between a joint panel 3 serving as a coupling surface 2a and a second joint panel 5 provided in a segment 2 so as to define a reinforcing zone 6 through which long bolts 7 can pierces when coupling surfaces 2a (joint panels 3) are faced to each other. With this arrangement, the segments 2 can be coupled together by fastening the reinforcing zones 6 with the use of the long bolts 7. Further, both reinforcing zones 6 and the long bolts 7 can eliminate occurrence of deformation of a joint panel caused by transmission of stress in the axial direction of the bolt, and accordingly, the segments 2 can be firmly coupled by simply fasting the reinforcing zones 6 wit the use of the long bolts 7.

6. 发明专利

JPH07229321A UNDERGROUND TANK AND CONSTRUCTION THEREOF 失效
公开(公告)号：JPH07229321A
公开(公告)日：1995-08-29
申请号：JP4648294
申请日：1994-02-21
申请人： KAJIMA CORP
发明人： ISOIWA KAZUO , KUBOTA MUNETAKA , HIDA KENICHIRO , BABA EIJIRO , NAITO SHIZUO , KANEOKA MINORU , AKIYAMA TERU
IPC分类号： E02D29/045 , E04H7/18 , E21D13/00
摘要： PURPOSE:To securely prevent the floating-up of an underground tank economically and with excellent workability. CONSTITUTION:A projected part 5 is provided to the top of an underground continuous wall 3, and also a stepped part 11 is provided to the side wall 9 of an underground tank, so that a shear transmission mechanism is constituted by the projected part 5 and the stepped part 11. When buoyancy is added to the tank, since the weight of the underground continuous wall 3 is exerted in the reverse direction to the buoyancy, the floating-up of the underground tank can be prevented.

7. 发明专利

JPH07119143A UNDERGROUND CONTINUOUS WALL CONSTRUCTION 失效
公开(公告)号：JPH07119143A
公开(公告)日：1995-05-09
申请号：JP26506793
申请日：1993-10-22
申请人： KAJIMA CORP
发明人： AKIYAMA TERU , SAITO SO , OKUMURA KAZUMASA , SUENAGA TATSUO
IPC分类号： E02D5/20
摘要： PURPOSE:To prevent decrease of the function due to corrosion and enable easy arrangement of reinforcements even when the above space of an excavated hole is narrow, by inserting uncured cold setting FRP ropes as vertical reinforcements and cured FRP bar materials as horizontal reinforcements. CONSTITUTION:A plurality of uncured FRP ropes 1 as vertical reinforcements are arranged at every specified interval and a plurality of cured FRP bar materials 2 are arranged at every specified interval in the direction crossing in right angles with the ropes. The intersections are united with strings. Weights 6 are fixed at the front ends thereof and suspended down from both sides of the longer sides of the excavated hole 7. At that time, both ends of bridging materials 3 are united together with the cured FRP bar materials 2 at the upper side of excavation hole 7 to form a reinforcements-cage. In this way, it can be easily inserted even in a curved excavation hole. Since it is lighter than steel reinforcements, the transportation cost can be remarkably reduced.

8. 发明专利

JPH06280346A CONSTRUCTION METHOD FOR MANUFACTURE PRESTRESSED CONCRETE MEMBER 失效
公开(公告)号：JPH06280346A
公开(公告)日：1994-10-04
申请号：JP6681693
申请日：1993-03-25
申请人： KAJIMA CORP
发明人： KANDA TETSUSHI , WATANABE SHIGEO , FUKUMOTO TOSHIYUKI , AKIYAMA TERU , OKUMURA KAZUMASA
IPC分类号： E04C5/08 , B28B23/06 , E04C3/26 , E04G21/12
摘要： PURPOSE:To facilitate the manufacture of a member by placing concrete in a form to which an energization hardening rope is arrange, straining the energization hardening rope after concrete has been cured, and thereby energizing the energization hardening rope so as to be hardened. CONSTITUTION:A beam form 6 is supported by a support 8, reinforcing bars are placed in column forms 7 and the beam form 6, and an energization hardening rope is arranged in a form of suspension in the beam form 6. Next, concrete is placed in the column forms 7 and the beam form 6, after concrete has been cured, the energization hardening rope 1 is strained by hydraulic jacks 9. The energization hardening rope 1 thus strained is energized and heated by an energizing means 11, and the energization hardening rope 1 is thereby hardened so as to be transformed into carbon fiber reinforced plastics, so that the aforesaid plastics are firmly bonded on beam concrete 5. Therefore, a prestressed concrete member can thereby be efficiently manufactured.

9. 发明专利

JPH0431539A CONCRETE MEMBER REINFORCED WITH FRP ROD MEMBER 失效
公开(公告)号：JPH0431539A
公开(公告)日：1992-02-03
申请号：JP13904690
申请日：1990-05-29
申请人： KAJIMA CORP
发明人： AMANO REIKO , AKIYAMA TERU , FURUICHI KOSUKE , OKUMURA KAZUMASA
IPC分类号： E04C2/06 , C04B32/02
摘要： PURPOSE:To obtain great proof stress and deformation performance with thinness by forming FRP rods in the shapes of plates, and by arranging a rod surface and a concrete member surface in the directions in parallel with each other, to be arranged in two directions crossed over each other. CONSTITUTION:On a central section in the thickness direction of the board of a concrete board 6 to be reinforced with FRP rods, the plate-shaped FRP rods 2 are arranged to reinforce the board 6, and the surface of the rods 2 and the surface of the board 6 are arranged in the directions in parallel with each other and in two orthogonal directions. After that, before placing concrete on the rods 2, 2 arranged in the two orthogonal directions, pretension is applied to, and prestress is introduced into the board 6. After that, the FRP rods 2 are arranged in the two directions crossed over each other, and with the thickness(covering + rod thickness t X 2 + covering), the member of a thin slab, a board, or the like is obtained. As a result, great proof stress and deformation performance can be displayed.

10. 发明专利

JPH03271466A METHOD OF INTRODUCING POST-TENSION FOR FRP TENSION MEMBER 失效
公开(公告)号：JPH03271466A
公开(公告)日：1991-12-03
申请号：JP7286590
申请日：1990-03-22
申请人： KAJIMA CORP
发明人： SHINTANI TAKESHI , YAMAMOTO TORU , AKIYAMA TERU , AMANO REIKO
IPC分类号： E04G21/12
摘要： PURPOSE:To facilitate work by providing an anchor unit in a sheath end part, pulling a tension unit in which a fixing tool fitted into a sheath and the anchor unit is inserted after placing and hardening concrete by a jack and fixing the tension unit by a wedge. CONSTITUTION:A sheath 9 is provided inside a mold frame and an anchor unit 10 for post-tension is arranged in the end part thereof. Next, the mold frame is removed after arranging reinforcing bars 15 of a fixing part along the periphery of the anchor unit 10 and placing and hardening concrete 16. Then, a cylindrical unit 7 is fitted to the fitting space 11 of the surface of the concrete 16, an FRP tension member 4 is inserted into the sheath 9 from space 11, and the point end of the member 4 is drawn outside the concrete 16 by holding the part 4 between wedges 6. The end part of the tension member 4 is held by the jack holding part 18 of a jack 17 and pulled till the tension obtains its predetermined value. Further the tension member 4 is fixed to a fixing tool 5 by applying a pressure of oil to a pressure plate B to press the wedge 6.

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