| 摘要 |
<p>The invention relates to a hook iron arrangement, which is intended for use as a reinforcement element in a substantially elongated, cast concrete structure, and which includes one or more hook iron members that are discontinuous and placed in succession lengthwise (s) of the concrete structure and/or extend continuously over at least part of its lengthwise dimension (s) and are provided with a substantially crosswise hooking structure (TR) . The hook iron arrangement comprises a wire-assembled hook iron reinforcement (1) essentially open/openable (a) at its top side at least during a casting operation for enabling the manufacture of . a reinforced concrete slab with improved torsional rigidity specifically by virtue of the hook iron reinforcement, a hollow-core slab, butt-to-butt manufactured reinforced concrete beams, slabs and/or the like in slip casting technique, the open/openable top side of the hook iron reinforcement enabling, during a casting operation, the lengthwise (s) passage of a slip casting machine ' s top-supported actuators , such as a core mandrel, a compaction member and/or the like, through the crosswise hooking structures (TR) of the hook iron reinforcement element .</p> |
