| 摘要 |
<p>SECTION-IRON FOR BRACES OR UPRIGHTS FOR LATTICE GIRDERS AND LIKE STRUCTURES A novel outline for section irons to be used in truss girders and like constructions is disclosed, which essentially consists of a box-like open structure composed by a longer angle iron from the free end of which there are extended, at right angles outwards, L-shaped extensions having sides equal to one half of those of the angle iron. Bending stresses can be minimized and the entire structure is more conveniently assembled and has a reduced weight.</p> |
