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51. 发明专利

JPS61282517A CONTINUOUS UNDERGROUND WALL 失效
公开(公告)号：JPS61282517A
公开(公告)日：1986-12-12
申请号：JP12148385
申请日：1985-06-06
申请人： OHBAYASHI CORP
发明人： TAKEDA JUICHI , OBATA KATSURO , IRISAWA KENICHI
IPC分类号： E02D5/18 , E02D5/20
摘要： PURPOSE:To increase the shear strength of the joint portion by a method in which the horizontal cross section of the partition plate of a joint box position at the joint of underground walls is shaped into a wave form by setting the length/height ratio of the wave form to a specific range. CONSTITUTION:A preceding pit 14 is formed in the preceding construction section I, and a reinforcing bar cage 10 is inserted into the pit 14. Concrete is then driven into the pit 14 excluding the portion of a joint box 12 with partition plates 121 of a waveform horizontal cross section having a wave length/ height ratio 3-5. A following pit 18 is excavated in the follow construction section II, a drawing plate 124 is pulled out, and the reinforcing bar cage 10 is inserted into the pit 18 by overlapping an auxiliary reinforcing bar cage 110 with the horizontal main reinforcing bars 101 in the box 12. Concrete is driven into the pin 18 to form a following wall 20, and the same processes are repeated to form an underground wall.

52. 发明专利

JP2002161593A FIRE RESISTANT COATING STRUCTURE OF CONCRETE STRUCTURE AND ITS CONSTRUCTION METHOD 审中-公开
公开(公告)号：JP2002161593A
公开(公告)日：2002-06-04
申请号：JP2001191487
申请日：2001-06-25
申请人： SCHOKBETON JAPAN CO LTD , OHBAYASHI CORP
发明人： KAWAHARA MASAO , OBATA KATSURO , KIMURA KOZO , KAWACHI TAKESHI , HAYASHI YOSHIMASA , OGAWA HARUKA , MITANI KAZUFUSA
IPC分类号： E04B1/94
摘要： PROBLEM TO BE SOLVED: To solve such a problem that the conventional mortar plastering finish method requires labor for the construction and the mortar is apt to be cracked and inferior in adhesion with the substrate. SOLUTION: A creeping long fiber 3 made by twining fluffed thread 3b round a core thread material 3a is wound on a reinforced fiber 2 wound on the periphery of a concrete skeleton body 1 and further mortar 4 is applied thereon.

53. 发明专利

JPH1025755A CONSTRUCTING METHOD OF UNDERGROUND FRAME USING STEEL-PIPE REINFORCED CONCRETE STRUT 失效
公开(公告)号：JPH1025755A
公开(公告)日：1998-01-27
申请号：JP18238296
申请日：1996-07-11
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , KURISU KOICHIRO
IPC分类号： E02D29/045 , E21D13/00
摘要： PROBLEM TO BE SOLVED: To provide a constructing method, by which a flat slab can be thinned while increasing the bonding power of a strut end section and a capital. SOLUTION: A steel-pipe reinforced concrete strut 22 is constituted by juxtaposing two steel-pipe reinforced concrete 22a, 22a in the horizontal direction. A large number of studs 36, 36... are projected beforehand from the outer circumferences of the connecting end sections 22b of the steel-pipe reinforced concrete struts 22 buried into capitals 34. The sheathing wall 12 sides of each steel-pipe reinforced concrete 22a, 22a are spread in a V shape in the steel-pipe reinforced concrete struts 22, 22... connected to a sheathing wall 12, and each end section is connected to the sheathing wall 12.

54. 发明专利

JPH09144334A CONSTRUCTION METHOD OF REINFORCING CONCRETE STRUCTURE 失效
公开(公告)号：JPH09144334A
公开(公告)日：1997-06-03
申请号：JP30742695
申请日：1995-11-27
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , KATSUMATA HIDEO , SATO YUICHI , MURAHASHI HISAHIRO
IPC分类号： E04G23/02 , B29C63/02 , B29K105/08 , C08J5/24
摘要： PROBLEM TO BE SOLVED: To prevent the exfoliation of a sheet by bonding an FRP sheet, and applying a press metal fitting to a proper place, and fixing the press metal fitting with a bolt, etc., when sticking the FRP sheet to a concrete wall or the like for reinforcement. SOLUTION: An FRP sheet 3, which is reinforced with carbon fibers, etc., after execution of proper foundation treatment or primer treatment, is arranged as far as the reentrant angle part on the boundary with a pole 2, at the surface of a concrete wall 1, and it is bonded by an adhesive. In this case, a press metal fitting 5 is fitted to the FRP sheet 3, and it is fastened with a fixing metal fitting 4 consisting of a bolt or the like. Moreover, the press metal fitting can be made of an angle steel, and attached to the pole 2 by an anchor bolt or the like. This reinforcing method can also be applied to a pole or a beam. This is so arranged that the FRP sheet 3 does not peel off the concrete body 1, and that the reinforcement effect does not drop. Hereby, the reinforcement effect can be improved.

55. 发明专利

JPH0972105A STRUCTURE AND METHOD OF REINFORCING CONCRETE STRUCTURE 失效
公开(公告)号：JPH0972105A
公开(公告)日：1997-03-18
申请号：JP3086296
申请日：1996-02-19
申请人： SCHOKBETON JAPAN CO LTD , OHBAYASHI CORP
发明人： KAWAHARA MASAO , OBATA KATSURO , KIMURA KOZO , KAWACHI TAKESHI , HAYASHI YOSHIMASA , OGAWA HARUKA , MITANI KAZUFUSA
IPC分类号： E04G23/02
摘要： PROBLEM TO BE SOLVED: To increase the strength of a concrete building frame, and to improve the reliability of fire-resistive covering by reinforcing the periphery of the concrete building frame by an iron plate, sticking raised cloth on the iron plate and coating the upper section of the hairy cloth with mortar. SOLUTION: An iron plate 6 or a steel pipe is disposed around a concrete building frame 1, raised cloth 4 is stuck on the surface of the iron plate 6, etc., with adhesives 3 while directing a pile part to the outside, and a reinforcing layer is formed. The surface of the raised cloth 4 is coated with mortar 5 so as to bury the pile part. Accordingly, stress such as shearing force, etc., working to the concrete building frame 1 is burdened by the reinforcing layer, and the concrete building frame 1 can be reinforced. Since the raised cloth 4 is interposed on the interface of the reinforcing layer and a mortar layer, the adhesive stability of both the reinforcing layer and the mortar layer 5 is improved, and fire-resistive covering having high reliability can be executed.

56. 发明专利

JPH08239857A FLOOR FACE CONSTRUCTION METHOD FOR UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH08239857A
公开(公告)日：1996-09-17
申请号：JP4426895
申请日：1995-03-03
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , KURISU KOICHIRO , TSUDA KAZUAKI , MIZUTA MIKIO , GOKAN SHOKICHI
IPC分类号： E02D29/045 , E04B5/32 , E21D13/00
摘要： PURPOSE: To make a floor face thin and improve underground excavation efficiency without being hindered by the floor face of the upper floor. CONSTITUTION: After the connection of a steel pipe concrete beam 12 to an inverted stanchion 10 is completed, the portion of the underground second floor BF2 is secondarily excavated. The first semi-PC slab plate 14 is suspended on the steel pipe concrete beam 12 via U-shaped reinforcing bars 52, and the first semi-PC slab plate 14 is installed on a column strip 48 along the steel pipe concrete beam 12 with no gap (column strip installing process). The second semi-PC slab plate 16 is overlappingly supported on the end section of the first semi-PC slab plate 14, and the second semi-PC slab plate 16 is installed on a middle strip 50 surrounded by the column strip 48 with no gap (middle strip installing process). After reinforcing bars are arranged on the first and second semi-PC slab plates 14, 16, concrete 46 is placed to construct a flat slab 58, and the steel pipe concrete beam 12 is buried in the concrete 46 (floor concrete placing process).

57. 发明专利

JPH08177068A CONSTRUCTION OF UNDERGROUND STRUCTURE 失效
公开(公告)号：JPH08177068A
公开(公告)日：1996-07-09
申请号：JP32439294
申请日：1994-12-27
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , TSUDA KAZUAKI , KURISU KOICHIRO
IPC分类号： E02D27/12 , E02D29/045 , E21D13/00
摘要： PURPOSE: To improve the efficiency and shorten the term of works on constructing frames on the subterranean part of a structure by a method wherein horizontal force is borne with beams constructing the floor on the first story and continuous underground walls, and permanent beams are made to double as struts. CONSTITUTION: Steel beams 20 for the first story are connected to the upper ends of structural studs 12 (first floor beam constructing process). An excavator is brought in through an opening between the steel beams 20 on the first floor and excavation is made on a part for the first basement Bl (excavation process). Permanent beams 24 for constructing the floor 22 for the first basement B1 are arranged in grating (beam arrangement process) on the bottom of the excavated part, and the arranged permanent beams 24 are hung down (beam hanging process) from the first story steel beams 20 with hanging materials 26. End of each of the beams 24 is made to double as a strut for continuous underground wall 14. The excavation process, the beam arrangement process and the beam hanging process are repeated for constructing basements in the lower stories, and an underground structure is constructed with the stories constructed up to the projected stage.

58. 发明专利

JPH06240817A TENDON STRUCTURE FOR PRESTRESSED CONCRETE 失效
公开(公告)号：JPH06240817A
公开(公告)日：1994-08-30
申请号：JP2699293
申请日：1993-02-16
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , KIMURA KOZO
IPC分类号： B28B23/02 , D01F9/00 , D06M15/21 , D06M101/00 , D06M101/16 , D06M101/30 , D06M101/34 , E04C5/07
摘要： PURPOSE:To prevent explosion of prestressed concrete in an emergency by a method wherein tendons to be arranged in prestressed concrete are covered with covering layers that lose covering function at a specified level of the temperature. CONSTITUTION:The structure of a tendon is made by covering the exterior of the tendon 1 with thermoplastic resin 3. The tendon 1 is formed in a cord-like shape by intertwisting a number of high strength fiber materials and by intertwisting further a plurality of intertwisted fibers. The exterior of the cord- like tendon 1 is covered with a covering film 3 made of hard rubber or the like that loses covering function approximately at 100 deg.C. Then, reinforcements 9 are arranged in a prestressed concrete board 7 and the tendons 1 are arranged between the reinforcements. In the case where the temperature of the prestressed concrete 7 rises to a high level in the case of fire, the covering film 3 of the tendon 1 softens, deteriorating the strength in bonding to the concrete, and thereby explosion of the concrete can be avoided.

59. 发明专利

JPH0657873A PRESTRESSED CONCRETE SLAB 失效
公开(公告)号：JPH0657873A
公开(公告)日：1994-03-01
申请号：JP20684292
申请日：1992-08-03
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , KIMURA KOZO , NAKANE ATSUSHI
IPC分类号： B28B23/04 , E04C2/06 , E04G21/12
摘要： PURPOSE:To save the labor for straining work by arranging a flexible straining material in a required position in a formwork, extending the free end part of the straining material to the outside of the formwork, and adding a tension to the straining material after placing concrete. CONSTITUTION:A flexible straining material 2 is preliminarily arranged in a required position of a rectangular formwork 1, and the free end parts 2a, 2b of the straining material 2 are extended to the outside of the formwork in two adjacent sides 1a, 1b of the formwork 1. In the state where the free end parts 2a, 2b of the straining material 2 are left out of the formwork 1, concrete is placed, and after hardening concrete, the straining material end parts 2a, 2b is pulled to give a tension. Thus, the two-directional bending resistance of a PC concrete slab can be improved.

60. 发明专利

JPH05321245A METHOD OF JOINING UNDERGROUND WALL WITH BODY STRUCTURE OF BUILDING 失效
公开(公告)号：JPH05321245A
公开(公告)日：1993-12-07
申请号：JP12620892
申请日：1992-05-19
申请人： OHBAYASHI CORP
发明人： OBATA KATSURO , IRISAWA KENICHI
IPC分类号： E02D5/18 , E02D29/00
摘要： PURPOSE:To preclude the part between a body structure of building and an underground wall from risk of secular degradation such as corrosion while the merits of the JOF method are well secured, generate lightweight and high strength joint, and facilitate fabrication, transportation, and site works. CONSTITUTION:An excavation ditc 1 is provided, and a mild steel bar cage 2 is placed. At the side of this cage 2, an FRP plate 3 is installed which is provided with teeth-form convexes and concaves 3a are formed cyclicly. Around this FRP plate 3, a number of joining bars 4 of mild steel are installed while penetrating the same 3. After constructing an underwater wall 5 by placing concrete, the ground on the body structure side is cut to expose there the uneven surface 3a. Then mild steel bars 6 for concrete mass are arranged and coupled with the joining bars 4 through a joint sleeve 7. The mass 9 of the body structure is constructed by placing concrete, wherein the end face is joined consolidated with the underground wall 5 through the uneven surface 3a of the FRP plate 3.

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