A Study on the Shear Wall Ratio in School Buildings

Abstract

Within this current study, in order to be safe of school buildings against an earthquake, shear wall ratio, must have been a plan, was determined depending on floor type. In order to determine these approach, three types of model building formwork plans with 4, 6 and 8 classrooms were selected. Shear wall- frame systems have been created by placing 4 reinforced concrete shear walls symmetrically on both sides of each of the 3 selected formwork plans. Each of the 3 types of selected formwork plans were modeled as 2, 3, 4 and 5 stories. Each of the model buildings was built for 2 types of material combination. Thereby, a total of 24 types of school buildings were taken into account in the calculations. Performance evaluation of the 24 model school buildings produced was made by using nonlinear analysis method. The smallest reinforced concrete shear wall dimensions, provided the predicted performance level, are obtained by increasing by 5 cm the reinforced concrete shear walls in both directions. This process was carried out until each of the selected 24 model buildings provided the minimum target performance levels based on the probability of exceeding occurrence. Shear wall dimensions were determined by dividing specified curtain wall dimensions into floor areas.These shear wall ratios depend on floor type.

Keywords

• shear wall ratio
• school buildings
• nonlinear analysis methods
• seismic safety