Study on the New Method of Constructing Shear Walls in Multi-Storey Buildings With Site Cast Reinforced Concrete Frame System

Abstract

The article touches upon the comparative analysis of bearing system calculations of a multi-storey residential building with site cast reinforced concrete frame and shear wall constructed by two different methods. In the calculation models, the shear walls are constructed from site cast reinforced concrete in the first case, and from three-layer sound and thermal insulating bearing panels in the second. The calculations have been made considering the impact of the seismic force. According to the calculation results, the dynamic parameters of the bearing systems of the buildings and the economic efficiency indicators have been compared. Considering the fact that in the recent years three-layer sound and thermal insulating panels have been widely used in the world, the study attempted to reveal the efficiency of using such panels in the Republic of Armenia.

Assessment of the Stress-Strain State of Strengthened Buildings in Seismic Regions Taking into Account Soil Dynamic Parameters

“…In order to provide enough strength and stiffness for the building and to minimize the possible damages and decay in the structure in case of seismic impact, it is necessary to provide a completely new structural system for the building. The new structural system should be designed so that it entirely gets the possible seismic load [1][2][3][4][5][6][7][8][9][10][11][12].…”

“…As the calculation results show, the oscillations period values decreased by 2.5 times. For buildings and structures with largely uniform distribution of rigidities and masses along the height, if the oscillations period value of the first mode is T1 < 0.4s only the first oscillation mode is considered 5 . The main tensile stresses in the masonwork in longitudinal direction walls is σρ=17.5 t/m 2 < [σρ]=20.0 t/m 2 (seismic impact by the axis X), σρ = 6.35 t/m 2 < [σρ] = 13.0 t/m 2 (seismic impact by the axis Y), (Table 9, point 4a, RABC IV-13.01-96 Stone-reinforced stone structures).…”