| 摘要 |
<p>The invention relates to a method of constructing a roof or floor slab for domestic, commercial, or industrial buildings. The method includes erecting a support grid (10) of a plurality of elongate, laterally spaced, parallel, longitudinally extending, pre-cast reinforced concrete beams (12, 14, 16), and a plurality of orthogonally disposed elongate pre-cast reinforced concrete cross ribs (18 to 28) interconnecting adjacent pairs of beams. A plurality of openings (46) is defined by the upper edges of the interconnecting beams (12, 14, 16) and cross ribs (18 to 28). The method includes laying pre-cast reinforced concrete shutter panels (44) over the openings, the panels (44) being supported along their peripheries by the upper edges of the beams (12, 14, 16) and cross ribs (18 to 28) defining the openings. The method further includes pouring a layer (66) of a settable cementitious material onto the shutter panels (44) and allowed to set to form a concrete layer.</p> |
