| 摘要 |
A system of domes for use in pouring voided (i.e., ribbed) concrete slabs comprising relatively short end domes for use at the ends of a span and two or three relatively long intermediate domes for use between two end domes, and involving a set of different length end domes and a set of different length intermediate domes adapted, by suitable combination of the lengths, to bridge spans in a series of lengths differing by an increment such as 6 inches or 1 foot.
|
