| 摘要 |
The present invention relates to a sheer reinforcement of a column-slab joint in a flat-plate structure, and more particularly, to a sheer reinforcement capable of maximizing sheer reinforcing effects using a minimal amount of steel bars, and to a preferable bar arrangement of slab steel bars using same. The spiral sheer reinforcement according to the present invention comprises: a spiral steel hoop bent in a spiral shape along a lengthwise direction thereof to form elongated arcuate ellipses widthwise such that the height is greater than the width thereof; a first arrangement of upper steel bars arranged lengthwise along the spiral steel hoop and joined to the uppermost points of the spiral steel hoop or top portions at one inner side of the spiral steel hoop; and a first arrangement of lower steel bars arranged lengthwise along the spiral steel hoop and joined to the lowermost points of the steel hoop or bottom portions at the other inner side of the spiral steel hoop. The bar arrangement of slab steel bars according to the present invention is characterized by arranging the spiral sheer reinforcement between upper and lower steel bars about a column. |
