| 摘要 |
<p>Structure (1) has metallic bearing element (10), and mineral wool panel (20). Bearing element has pair of lower (11) and upper (12) profiled sections spaced apart by step p, and respectively, two webs (13, 14) opposite each other, and two wings (15, 16), folded perpendicularly to associated web. Upper profiled section has other wing (16a), on other side of web (14), parallel to wing (16), but in opposite direction. Soundproof structure is attached to structural frame (40) by upper profiled section, near free end (16c) of wing (16a), using self-threading screws.</p> |
