| 摘要 |
<p>A nodal element (1) and its principal assembly elements for a lattice spatial structure is described, with ribbed rods (10, 10 min ) that is with any profile that is not smooth, even formed with recesses, but preferably constituted by pseudo-threaded bars in high resistance steel. The nodal element consists of two hemispheres (1a, 1b) substantially solid full, with a flanged, bolted joint (2) on the equatorial plane, with shaped internal seats (4, 4 min ) threaded for example, but in any case such as to house, with blocking, the stringer rods (10) of the structure at right angles to each other, not on the same plane but displaced with respect to said equatorial plane. The same also contains radial threaded blind holes (13) in at least one of the hemispheres for joining the diagonal rods (10 min ) using connecting sleeves (11) and stud bolts (12). Tubular coverings (6) are envisaged which have essentially a protective function and as a control template for the free length of rod, or having a static function for rods loaded by compression.</p> |
