| 摘要 |
<p>This invention relates to a hot-rolled steel bar 10, suitable for use as a tensile bar in civil and engineering construction. As can be seen in Figure 1, the steel bar 10 comprises alternating plain lengths 12 and deformed lengths 14. Two of the plain lengths 12 define opposite end lengths of the steel bar 10. Each deformed length 14 has a length L1 and each plain length 12 has a length L2 and a round cross-section. L1 and L2 are variable in different embodiments of the steel bar 10 provided that 25mm = L2 = 350mm and 400mm = L1 + L2 = 2000mm. Each deformed length 14 includes two opposite series of essentially conventional diagonal ribs 16 and two opposite conventional longitudinal ribs 18.</p> |
