The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2012
Filed:
Jun. 30, 2009
Kazuhito Nakamitsu, Toshima-ku, JP;
Shinichiro Takeshita, Toshima-ku, JP;
Yoshimasa Kojima, Toshima-ku, JP;
Jiro Yano, Toshima-ku, JP;
Yuji Yokoi, Toshima-ku, JP;
Shigeyoshi Kawaguchi, Toshima-ku, JP;
Tetsuya Hamakawa, Toshima-ku, JP;
Hironobu Tazawa, Toshima-ku, JP;
Kazuhito Nakamitsu, Toshima-ku, JP;
Shinichiro Takeshita, Toshima-ku, JP;
Yoshimasa Kojima, Toshima-ku, JP;
Jiro Yano, Toshima-ku, JP;
Yuji Yokoi, Toshima-ku, JP;
Shigeyoshi Kawaguchi, Toshima-ku, JP;
Tetsuya Hamakawa, Toshima-ku, JP;
Hironobu Tazawa, Toshima-ku, JP;
Hitachi Plant Technologies, Ltd., Tokyo, JP;
Abstract
A girder block lifting method, which can solve a problem that steel beams are inclined or fallen inward by lifting a heavy material, and a jack-up stage used therefor are provided. The method includes a main beam which can be provided between steel beams being targets of connection with the girder to construct a rigid frame structure, a height adjustment means (gate-shaped base) mounted on a cross beam member being parallel to the main beam and connecting other steel frames for adjusting height to the main beam, a connection beam for alternately connecting the main beam and the height adjustment means (gate-shaped base), and an auxiliary beam for connecting the connection beams. On a frame stage formed by connecting these beams, a plurality of lifting jacks are provided and a lifting sling is hung from upper part of the steel beam to enable jack-up of the girder block.