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31. 发明专利

JP2000291131A STRUCTURE FOR JOINING PILLAR TO BEAM OR FLOOR 失效
公开(公告)号：JP2000291131A
公开(公告)日：2000-10-17
申请号：JP9553799
申请日：1999-04-01
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KANEKO YOSHIO , KURITA MORIAKI , SHIOYA TOSHIYUKI
IPC分类号： E04B1/16
摘要： PROBLEM TO BE SOLVED: To provide a joint part having excellent workability and high joining strength by embedding a joint member made of the fiber reinforced hardening material in a joining part of a pillar and a beam or a floor to be joined with the pillar, and providing the joint member with a pillar joining part extended toward the pillar integrally with a beam and floor joining part extended to the beam or the floor. SOLUTION: A joint member 3 is formed of a core part 3a made of the fiber reinforced hardening material, a reinforcement (beam and floor joining part) 3b extended from the core part 3a toward a beam 2, and a reinforcement (pillar joining part) 3c extended toward a pillar 1. The pillar 1 of the reinforcing concrete placed in the construction field and the joint member 3 are arranged in the joining part of the beam 2 and the floor, and a pillar reinforcement 1a and a beam reinforcement 1b are jointed with reinforcements 3b, 3b extended from the core part 3a, and framework is assembled in this condition, and concrete is placed into the framework so as to form the pillar 1 and the beam 2. With this structure, a joint part having excellent workability, durability is realized.

32. 发明专利

JP2000257209A REINFORCEMENT WITH ANCHORING PART AND MANUFACTURE THEREOF 失效
公开(公告)号：JP2000257209A
公开(公告)日：2000-09-19
申请号：JP6107799
申请日：1999-03-09
申请人： SHIMIZU CONSTRUCTION CO LTD , DAI ICHI HIGH FREQUENCY CO LTD
发明人： MAENOZONO TSUKASA , SAKAMOTO AKIRA , TOMOTA ISAMU , TAKAGISHI MASAAKI , NAGASAWA YASUNORI , SHIOYA TOSHIYUKI , YABE KIDO , SAKAMOTO SHINICHI , KATSUSAWA KATSUE , HIGUCHI YOSHIHIRO , OKAMOTO SHUHEI , SHIOKAWA HIDEYO
IPC分类号： B21J5/08 , E04C5/03
摘要： PROBLEM TO BE SOLVED: To increase anchoring strength to a reinforcement and concrete by using a diametrically expanded part formed by applying hot upsetting treatment to the reinforcement as an anchoring part. SOLUTION: In an anchoring part reinforcement 1A, a disk-shaped diametrically expanded part 1b is respectively formed in a reinforcement part having a constant diameter, that is, both side end parts of an ordinary part 1a as the anchoring part by hot upsetting treatment. Since this diametrically expanded part 1b can secure the large action area even if an outside dimension is reduced more than an ordinary anchoring part by bending a reinforcement end part in a U shape or an L shape, anchoring strength to the other reinforcement and concrete can be increased. Moreover, since the diametrically expanded part 1b is completely made as an integral structure in the ordinary part 1a, connecting strength of the diametrically expanded part 1b and the ordinary part 1b increases, so that the strength is stable. To increase strength and anchoring strength of a connecting part, there are cases where a reinforcing part for enlarging an outside diameter more than the ordinary part of a reinforcement is arranged in a root part of the reinforcement connected to the diametrically expanded part 1b and a locking projection is arranged in a peripheral part of a surface crossing the reinforcement axis of the diametrically expanded part 1b.

33. 发明专利

JPH10219678A PILE STRUCTURE 失效
公开(公告)号：JPH10219678A
公开(公告)日：1998-08-18
申请号：JP2303097
申请日：1997-02-05
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： KATSURA YUTAKA , YOSHIMI YOSHIAKI , SHIOYA TOSHIYUKI
IPC分类号： E02D5/22 , E02D27/34 , E02D31/08
摘要： PROBLEM TO BE SOLVED: To prevent damage of a pile to a sideways flow caused by liquefaction by displacing the pile constructed in the ground by following the sideways flow of the ground by an earthquake or the like in a structure such as a building constructed on the weak ground. SOLUTION: A pile 1 to support a structure is arranged between a bottom surface of a building, a footing beam B and a strong and hard support layer G1, and a head part and a lower end part restrain rotation by rigid joining, or are supported with a pin by a hinge J. Even if a sideways flow is caused in a liquefied layer G2 of the ground, the pile 1 is not damaged even if it is deformed so long as extreme fiber stress acting on the pile 1 does not exceeds an allowable stress of a pile material. When a deformation quantity of the pile 1 is set constant, a safety factor is in inverse proportion to the ratio of a Young's modulus of the pile, material to strength and a diameter of the pile 1. Therefore, since it is formed as a pile structure to satisfy this condition, the pile 1 can hold a function as a pile without being damaged by being deformed by following displacement of the ground. When a diameter of the pile 1 is reduced, an examination on buckling becomes necessary.

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