| 摘要 |
<p>The structural frame element (1) has the general form of an elongated profile, comprising a web (2) and at least one flange (4,6). The flange has an arc-shaped cross-section over the length of the profile apart from on at least one end portion (46) of the profile in which the cross-section varies so as to have a straight cross-section perpendicular to the web.</p> |
