| 摘要 |
<p>The invention relates to a beam (1) made of ultra-high performance fibrous concrete, characterised in that it comprises a first sill (2.1) including at least one web (3.1) having a bearing sole (4.1) along one of the longitudinal edges of the web and, on the opposite edge, a tab (5.1) fitted in a notch (5.2) having a complementary shape and belonging to a second sill (2.2) including a bearing plate (4.2) opposite the slot, wherein at least one of the sills includes a longitudinal-stress cable (9) imbedded in the concrete and parallel to the neutral longitudinal axis (10) of the beam.</p> |
