Computer modelling of R.C. shear walls-comparative analyses at different values of the reduction coefficient. Internal forces values

Abstract

The report shows a continuation of analyses of reinforced concrete shear walls solved by horizontal forces [14]. In certain places in the walls the stiffnesses are reduced, thus comparing the obtained results between the groups of models. Solutions for wall and mixed structural systems are shown. The decisions were made with specialized Tower software based on work by the Finite Element Method. Interesting conclusions can be seen for the level between the rigid basement and the first floor. Decreases in bending moments and increases in shear forces are observed. Motivation – quick analysis of walls subjected to the action of horizontal forces (hand analysis, without program system); the goals-proving the idea of the influence of the supports from the basement levels; the methodology-solutions with specialized software-only for a certain speed in the decisions. The solutions have characteristic geometry and loads and can be easily parameterized with correction factors.