| 摘要 |
The base module consists of an upper panel (1), diagonals (4) and a lower member (6), with two tubes (2) inserted through the upper panel and crossing at its centre to carry upper pre-stressing cables (10). A first fastening member (3), to which the diagonal (4) is fixed by screws (5), is inserted in the middle of the upper panel, while the lower crossshaped member (6) has a second fastening member (7) in the middle, to which the other end of the diagonal is fixed by screws (8). The arms of the lower member also contain tubes (9) for pre-stressing cables (11). The components of the base module can be made from timber, synthetic material or concrete and metal.
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