| 摘要 |
<p>The invention relates to a steel fibre for reinforcing concrete or mortar. The steel fibre comprises a middle portion and an anchorage end at one or both ends of the middle portion. The middle portion has a main axis. The anchorage end is deflecting from the main axis of the middle portion in a deflection section. The anchorage end has n bent sections, with n equal or larger than 2. When the steel fibre according to the present invention being in a stable position on a horizontal surface is vertical projected on this horizontal surface, the vertical projections in this horizontal surface of all of the n bent sections of an anchorage end are located at one side of the vertical projection in this horizontal surface of the main axis of the middle portion. The invention further relates to a concrete structure reinforced with steel fibres according to the invention and to the use of such steel fibres for load carrying structures of concrete.</p> |
