FIELD: construction, particularly hollow-core ceiling panels with gripping loops.
SUBSTANCE: hollow-core article comprises concrete body, horizontal hollow channels intersected with vertical partitions within one plane and symmetric engagement cells located over the hollow channels in upper plane of concrete body, caved mass and gripping loops located in hollow channels. Gripping loop is made of bent bar having free ends bent through right angle and provided with additional hook-like bents. The free ends extend in horizontal direction and are arranged in isolated cavity defined by two transversal partitions installed in hollow channel for channel closing. The gripping loops are fixed in isolated cavity with grout to create depression for hoisting hook receiving. The depression is made in cavity under the engagement cell.
EFFECT: increased reliability.
6 cl, 6 dwg, 5 ex
Authors
Dates
2007-12-27—Published
2006-06-13—Filed