METHOD FOR PRETENSION OF FLOORING SLABS Russian patent published in 2000 - IPC

FIELD: construction engineering. SUBSTANCE: this particularly relates to pretension of flooring slabs in framework of building. According to method, reinforcement is tensioned on abuts. For this purpose, installed between adjacent columns are standard mounting struts which are located along axes of building above or below of flooring slabs. Transmitted to struts are forces of reinforcement being pretensioned. This arrangement allows for excluding of technological pauses needed for filling mortar into joints between sectional slabs and columns and for hardening of this mortar. Transmission of tensioning force from struts to flooring slabs can be undertaken with lagging from erection operations by 1-2 stories. Application of method is especially effective with monolithic structures of framework and also when tubular concrete components are used for columns. EFFECT: higher efficiency. 2 cl, 6 dwg