| 摘要 |
A timber structural member includes: a first timber round having a first cooperating surface, a second timber round having second and third cooperating surfaces, and a third timber round having a fourth cooperating surface. The first cooperating surface is shaped to cooperate with the second cooperating surface, and the third cooperating surface is shaped to cooperate with the fourth cooperating surface. The first, second and third timber rounds are secured together to form a structurally integral unit, wherein the first cooperating surface contacts the second cooperating surface, and the third cooperating surface contacts the fourth cooperating surface, and the first, second and third timber rounds are substantially parallel to each other. Fasteners spaced along the length of the structural member at both acute and obtuse angles from its longitudinal axis secure the first, second and third timber rounds together. The fasteners extend through the first, second and third timber rounds. |
