| 摘要 |
<p>A metal "U" shape channel form (22) is used to form a concrete beam (18), and has two laterally opposed outwardly extending horizontally disposed flanges (30) with two supporting areas (32,34) arranged in a stepped fashion for selectively supporting a metal deck (14) or both a metal deck and plywood (58) between the span of adjacently arranged channel forms used to form a slab therebetween, which slab may be composite in that the formed slab (12) integrally includes a metal deck. A "U" shape shoring head (48) of complementary shape to the channel form (22) is mounted on a shoring frame to hold the channel form (22) in place for the pouring of the concrete, and a shoring head (22) can be used with a structural member arranged to support the metal deck of variable spans for slabs of variable dimensions in the available space.</p> |
