| 摘要 |
PROBLEM TO BE SOLVED: To newly provide a precast tiered structure of a grating bed plate. SOLUTION: In a beam stirrup cage which is provided astride first girders, a plurality of beam stirrups are arranged in such a manner that gaps are made among them. Each of grating bed plate members, which has a plurality of grating holes, is provided astride the first girders which are juxtaposed in the direction of the installation of the beam stirrup cage. The beam stirrup cage and the grating bed plate member adjacent to it are joined to each other so as to form a fence-like tiered structure with the plurality of grating holes. COPYRIGHT: (C)2009,JPO&INPIT
|
