| 摘要 |
<p>A parallel chord truss (10) which includes elongate lateral chord members or flanges (11, 12) of which one chord member is continuous along the length of the truss in fixed engagement with a penetrable separating member or web (20), the lateral chord members having cross bracing means (40) which permit access to the penetrable member to allow cabling and the like to pass through apertures (30).</p> |
