COMPOSITE REINFORCED CONCRETE FRAME FOR MULTISTORY BUILDING Russian patent published in 2005 - IPC

FIELD: building, particularly for residential and public building erection.

SUBSTANCE: composite frame comprises reinforced concrete columns with orifices formed at story floor areas, composite prestressed crossbars having horizontal depressions of triangular cross-sections in end sides thereof; floor panels arranged so that a gap is created between ends thereof. Floor panels and column orifices are grouted together with frame reinforcement bar ends inserted in them. Reinforced concrete columns extending through several stories have continuous reinforcement formed of prestressed bars extending along the full column length including areas near orifices. In this areas reinforcement bars pass through thick-walled tubes having steel support plates and embedded in column body for anchoring length.

EFFECT: increased load-bearing capacity of columns and buildings, increased earthquake resistance.

3 cl, 11 dwg