| 摘要 |
A method of producing a structural beam with openings located in the web is disclosed. The method includes the steps of: taking a universal beam (10), making a first cut (18) generally longitudinally along the web (16) thereof, making a second cut (20) generally longitudinally along the web (16) on a second path differing from the first path of the first cut, separating the cut halves of the beam, removing the material (28) between the first and the second cuts (18, 20), and welding the halves together. The first and the second cuts (18, 20) are spaced apart from each other, thereby defining a width of material or ribbon (28) there between.
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