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51. 发明专利

JP2002214085A METHOD FOR ANALYZING AND TESTING STRUCTURE 失效
公开(公告)号：JP2002214085A
公开(公告)日：2002-07-31
申请号：JP2001011023
申请日：2001-01-19
申请人： OHBAYASHI CORP
发明人： OKANO MOTOYUKI , TAKEDA ATSUSHI
IPC分类号： E04B1/00 , G01M99/00 , G01N3/20 , G01M19/00
摘要： PROBLEM TO BE SOLVED: To grasp the behavior after the maximum yield point of a material showing brittle fracture. SOLUTION: In a method for analyzing a structure, an analytical model is formed in such a state that a structure to be analyzed such as a concrete structure or the like is connected to a dummy structure (step 101). Herein, the structure 1 to be analyzed and the dummy structure 2 are mutually connected through a rigid element so that analyzing external force form an aspect of analysis or the external force accompanied by forcible deformation is distributed in proportion to rigidity. The dummy structure is constituted so as to hold positive rigidity of which the absolute value is the same as or more than that of the negative rigidity after the maximum yield point of the structure to be analyzed over an analyzing range. When the analytical model is formed, analyzing external force is applied to the analytical model or forcible deformation is applied thereto to analyze the load-deformation characteristics of the structure 1 to be analyzed.

52. 发明专利

JP2000226993A SHIELD BORING MACHINE FOR EXCAVATING INTAKE TUNNEL 失效
公开(公告)号：JP2000226993A
公开(公告)日：2000-08-15
申请号：JP2765699
申请日：1999-02-04
申请人： OHBAYASHI CORP , HITACHI CONSTRUCTION MACHINERY
发明人： MIYA KIYOSHI , TAKEDA ATSUSHI , OKAWADA TAKESHI , TAKAHASHI HITOSHI , FUKAI MASAKAZU , TAKAI YASUHIRO
IPC分类号： E21D11/00
摘要： PROBLEM TO BE SOLVED: To provide a shield boring machine for excavating an intake tunnel which causes no clogging at a water permeable portion of an intake segment and prohibits the ingress of groundwater through a tail clearance. SOLUTION: In a shield boring machine for intake tunnel excavation which has a water permeable portion 7b and non-permeable portion 7c and assembles an intake segment for taking in water through the water permeable portion 7b in a tail plate of a rear drum 1b, surface contact type urethane seal 9 capable of forming the seal surfaces in the peripheral direction by surface-contacting to an existing intake segment is provided with a plurality of stages in the tail plate, in the process of movement of the tail plate relative to the intake segment, the attaching pitch and the number of stages of the plurality of stages of urethane seal 9 are selected in such a manner that at least one stage of the urethane seal 9 constantly contact either one of the non-water permeable portion 7c of the intake segment among a plurality of the stages of urethane seal 9.

53. 发明专利

JPH11294085A JOINT DEVICE OF SEGMENT OR THE LIKE 失效
公开(公告)号：JPH11294085A
公开(公告)日：1999-10-26
申请号：JP9504398
申请日：1998-04-07
申请人： ISHIKAWAJIMA KENZAI KOGYO KK , OHBAYASHI CORP
发明人： SOMEYA HIROKI , OKAYAMA SUSUMU , NAKANO AKIHIKO , TAKEDA ATSUSHI
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To surely and easily join segments with each other by surely and uniformly urging a wedge to the tip direction to firmly and stably joint the wedge with a joining rod. SOLUTION: A joint device 1 mainly comprises a tapered sleeve 2, a plurality of wedges 3 in which an insertion and fixing hole H for a joining rod is formed, and which is arranged in an annular manner, and inserted in the sleeve 2, and an urging spring 4 of circular section formed of an elastic resin in which the wedges are urged on the small diameter tip side of the sleeve 2 so that the insertion and fixing hole H is reduced. A flat plate-like retainer 6 is provided between the wedges 3 and the urging spring 4. The contact resistance of the wedges 3 with the retainer 6 is reduced to smooth the movement in the radial direction by forming a rear end part of the wedges 3 to be curved parts 3a to be curved toward the retainer 6, and an outer circumferential surface at the rear end parts to be straight parts 3b approximately parallel to an inner circumferential surface in which the insertion and fixing hole H is formed.

54. 发明专利

JPH11294084A JOINT DEVICE OF SEGMENT OR THE LIKE 失效
公开(公告)号：JPH11294084A
公开(公告)日：1999-10-26
申请号：JP9504298
申请日：1998-04-07
申请人： ISHIKAWAJIMA KENZAI KOGYO KK , OHBAYASHI CORP
发明人： SOMEYA HIROKI , OKAYAMA SUSUMU , NAKANO AKIHIKO , TAKEDA ATSUSHI
IPC分类号： E21D11/04 , E21D11/08
摘要： PROBLEM TO BE SOLVED: To easily, rapidly and surely attach/detach a joint device to/from a mold, and attach a joining rod to a segment. SOLUTION: A joint device 1 mainly comprises a tapered sleeve 2, a plurality of wedges 3 in which an insertion and fixing hole H for a joining rod is formed, and which is arranged in an annular manner, and inserted in the sleeve 2, and an energizing spring 4 of circular section formed of an elastic resin in which the wedges are energized on a small diameter tip side of the sleeve 2 so that the insertion and fixing hole H is reduced. A female screw part 10 is formed on an inner circumferential surface at an opening part 2a on the tip side of the sleeve 2. A bolt 43 inserted in a fitting hole 42 formed in a mold 41 is tightened to the female screw part 10 from the outer surface of the mold 41 for forming a segment S, and the sleeve 2 is fitted to the inner surface of the mold 41.

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