| 摘要 |
Ceiling system consists from a welded steel lattice girders (1) mounted in concrete bases (3) and these are from the bottom and from the sideways insulated with the polystyrene foam (2). Between the welded steel lattice girder (1) with concrete bases (3) are placed filler (2) made from polystyrene foam. From the top the welded steel lattice girder (1) and filler (2) are imbedded by concrete layer (5). |
