A sectional structure, comprising a galzier's strip section (1) with a first side brace flange (2) for bracing one side of the glass pane, and a casing section (3) comprising a second side brace flange (4) for bracing the other side of the glass pane, a bottom rest (5) which is positioned at substantially right angles against the second side brace flange (4), the glass pane being disposed in the gap defined by the first and second side brace flanges and against the bottom rest. On the glazier's strip section (1) and on the casing section (3) have being formed mutually interlockable fixing members (6, 7). The structure comprises a first brace member (8), formed on the casing section (3), and a second brace member (9), formed on the glazier's strip section (1) for bracing against the first brace member (8) in order to form a pivot (10) between the sections so that with the first and second brace members (8, 9) urged against each other the glazier's strip section (1) can be turned around the pivot (10) constituted by the first and second brace members in cooperation, for pressing the first side brace flange (2) against the surface of the pane in a substantially perpendicular direction into locked position, wherein the first and second locking claws (6, 7) become interlocked.