Т. 51. Бр. 10. Управление на проекти в строителството. Възстановяване и усилване на сгради и съоръжения.
Рез. на англ. ез
Анотация
"The seismic strengthening of existing historic industrial reinforced concrete (RC) structures by using cable elements (tension-ties) is numerically investigated. Special attention is given to environmental and shear-effects, common to old RC structures, which have been designed and constructed before the use of current aseismic codes. The unilateral behaviour of the cable-elements is strictly taken into account and results in inequality constitutive conditions. Finally, using damage indices, the optimal strengthening version of cable-systems is chosen for the case of multi-storey RC frames under seismic sequences of multiple earthquakes"
