| 摘要 |
A fabricated beam 1 having a corrugated web 6 secured to flange plates 2 and 3 by continuous full penetration welds. The corrugations of the web 6 increase the stiffness of the beam 1 and allow a corrugated web beam to be fabricated of thinner plates so as to have a lower weight for a given strength. The use of full penetration welds enables the maximum strength of corrugated web beams to be obtained. Alternative forms of web with optional web reinforcements (64 Fig 4) by forming individual box sections are shown. Also described are beam fabrication apparatus (Figs. 5-7) and beam fabrication methods (Figs. 8A-9), including automated weld line tracking and welding parameter control. <IMAGE> |
