| 摘要 |
FIELD: construction. ^ SUBSTANCE: method to strengthen bent monolithic reinforced concrete slabs is realised with a reinforcement cable fixed in the lower part of the strengthened slab. The cable is laid into a groove made in the lower part of the slab. One end of the cable is rigidly fixed. The other end of the cable is forcedly displaced to obtain the required prestressing in the cable. Then such prestressed cable is rigidly fixed in the slab. Afterwards protruding parts are cut, and the groove is covered with the cable aflush with the lower part of the slab. Also a device for slabs reinforcement is disclosed. ^ EFFECT: even distribution of unloading forces in a stretched zone, elimination of prestressing forces transfer towards working reinforcement of structures, reduced labour intensiveness of works, increased operational reliability and durability of reinforcement. ^ 3 cl, 2 dwg |
