THE EFFECT OF USING ADDITIONAL ISOLATED UPPER FLOOR ON THE PERFORMANCE POINT OF R.C. FRAME STRUCTURES IN ARMENIA

Widely distributed 111 series, 10 story R.C. frame buildings are constructed during former Soviet Union in Armenia and Nagorno-Karabakh province. In current research we illustrate the concept of seismic upgrading of above mentioned buildings, using an Additional Isolated Upper Floor (AIUF). For this purpose, a three dimensional of 111-c R.C. frame building is modeled and analyzed according to Armenian SNIP II-6.02 code, based on 3 soil categories of Rock (Vs> 800m/s), Dense Soil (500