| 摘要 |
A structural frame of arch is formed with a plurality of curved frame units in parallel arrange- ment, said curved frame units hav- ing butt joints (6) are connected in length by several straight bars (16) and the butt joint (6), said straight bars are connected in line at right angles with the curved frame units in order to form a truss, said curved frame units comprise curved bars (14) and tie members (11) and said curved bars are connected to form the curved frame units by the tie members (11) and the butt joints (6), the tension member (9) is pro- vided between the curved frame units and the trusses.
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