| 摘要 |
PROBLEM TO BE SOLVED: To provide a deck plate with a truss forming no weld mark on the lower face side. SOLUTION: An upper reinforcement 1 and lower reinforcements 3, 3 are arranged in isosceles triangle shape, and undulating reinforcing bars 6, 6 are arranged in truncated chevron shape to form the truss 10 (a). Connecting bar members 34 are stored in groove parts 18 of an upper base plate 12, and leg parts 9 of the truss 10 are placed on projections 17 (a). Both ends of the connecting bar member 34 are projected by a predetermined length L from the edges 14, 14 of the upper base plate. Upper and lower electrodes 42, 43 are arranged holding the upper base plate 12 between, and a current is applied to integrally weld and stick the connecting bar member 34, the upper base plate 12 and the legs 9 of the truss 10 (b). A lower base plate 23 is placed over the lower face 16 of the upper base plate 12, and both downward locking edges 20, 29 and upward locking edges 19, 28 of both base plates 12, 23 are respectively fitted to constitute the deck plate 40 with the truss (c). COPYRIGHT: (C)2005,JPO&NCIPI
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