| 摘要 |
The invention relates to a dismantlable joint system for metal beams that have a level upper part, characterised by the use of a main support plate (1) and a secondary support plate (2). The plates are provided with slots (3, 4) that enable different-sized standard I-profiles to be joined. For this purpose, in addition to what is mentioned above, securing clamps (5), with the corresponding screws (6), nuts (7) and washers (8), are required. The main support plate (1) is also provided with lateral flanges (10) having slots (11) that allow the height of different-sized metal profiles to be adjusted. By inserting the clamping screws (15) through the slots (11) and drill holes (14), the height of the beams can be adjusted to level the upper parts thereof. The adjusting screws (16), which are mounted in threads (21) of the main support plate, allow the height to be adjusted exactly, before firmly tightening the clamping screws (15). Furthermore, by inserting stiffening screws (18) into the drill holes (19) of the main support plate (1), the bending moments of the secondary beam (12) can be transmitted and converted into torsion in the main beam (9). |
