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    • 7. 发明专利
    • JPH05340103A
    • 1993-12-21
    • JP17737692
    • 1992-06-11
    • TAKENAKA KOMUTEN CO
    • KOMINAMI KATSUYOSHIIWATA MASAYUKIMURATA KOJIMATSUZAKI TAKASHI
    • E04C5/06E04B1/16E04G21/12
    • PURPOSE:To make identical a covering depth and enhance the efficiency of beam main reinforcing bar arrangement. CONSTITUTION:Between straight reinforcing bars 12 and 13 outside beam main reinforcing bars 12 and 13 in the upper and lower parts in the direction of X and inwardly bent portions 12b1 and 13b1 of the reinforcing bars 12b and 13b inside, there are intersectingly laid out straight reinforcing bars 14b and 15b inside the main bars of each beam in the direction of Y. There are intersectingly laid out straight reinforcing bars 12a and 13a outside the main reinforcing bars of each beam in the direction of X between the straight reinforcing bars 14b and 15b. In other parts which exclude the intersected portions and the neighboring areas, at least outer reinforcing bars for the main bars of each beam are positioned on the same plane. The outer bars 12a and 13a and the inner bars 12b and 13b are lapped, thereby forming bundled bars. It is, therefore, possible to make identical the value of a covering depth for the bars of each beam, enhance the placement efficiency of each beam bar and filling properties of concrete.
    • 9. 发明专利
    • RC POLE AND SRC POLE OF CRUCIFORM CROSS SECTION
    • JPH0452355A
    • 1992-02-20
    • JP16192990
    • 1990-06-20
    • TAKENAKA KOMUTEN CO
    • IWATA MASAYUKIOTA MICHIHIKOKOMINAMI KATSUYOSHIHISAKA TSUGIOASO NAOKIABE HIROSHI
    • E04B1/16E04C3/34E04G21/12
    • PURPOSE:To prevent cracking due to shear, buckling of each main reinforcing bar and expansion of concrete by disposing main reinforcing bars near the outside corner portions of each projecting portion and near that side of a center rectangular portion which is opposite to a lower projecting portion, and disposing a band reinforcing bar around each main reinforcing bar. CONSTITUTION:Main reinforcing bars 11a, 11b each made by an iron bar for normal reinforcement are disposed near the outside corner portions of each projecting portion S1,S2, S3 and a main reinforcing bar 11a is also disposed in a portion opposite to that portion of a center rectangular portion R which is connected to the lower projecting portion S1. A rectangular band reinforcing bar 12a is disposed outside each main reinforcing bar 11a while in contact therewith. Further a rectangular band reinforcing bar 12b is disposed outside each main reinforcing bar 11b while in contact therewith. The rectangular band reinforcing bars 12a, 12b are each formed by bending of a long iron bar or connection of shortly cut iron bars to each other. Connection of the iron bars constituting the band reinforcing bars 12a, 12b is carried out using a normal connecting means such as welding, mechanical joint, lap joint etc.