Electric heating – Metal heating – Wire – rod – or bar bonding
Patent
1995-07-31
1997-09-09
Walberg, Teresa J.
Electric heating
Metal heating
Wire, rod, or bar bonding
2989734, 140112, B23K 1134, B21F 2710
Patent
active
056652542
ABSTRACT:
A method of manufacturing a reinforcing bar cage, which is used in a cast-in-place piling method of constructing a reinforced concrete pile for a structure, and an apparatus for manufacturing the same, which allow simple and easy manufacturing of a reinforcing bar cage having an intended cage strength. A hoop is disposed, e.g., spirally with respect to cylindrically arranged main reinforcements, connection between the main reinforcements and the hoop is made by welding crossed portions thereof, and, in connection with the welding, the crossed portions are heated to achieve an intended strength of the reinforcing bar cage.
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"Yosetsu Kogaku Gairon" (pp. 150-157) by Yugoro Ishi and Hiroshi Tamura, 1st version, 3rd Print, published by Kyoritsu Shuppan Kabushiki Kaisha.
Isono Hideo
Okabe Takeshi
Daiichi Unyusagyo Co. Ltd.
Matsumura-Gumi Corporation
Pelham J.
Walberg Teresa J.
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