THE INFLUENCE OF STRUCTURAL PERFORMANCE ON THE DISTRIBUTION OF EARTHQUAKE LOADS ON BUILDINGS

The results of vibration tests carried out on three medium-rise concrete structures are used in conjunction with a standard structural analysis computer program to identify the stiffness characteristics of the buildings. The effect of incorrect analytical modeling at the design stage is then studied by considering the forces carried by individual members when the buildings are subjected to earthquake loads. It is shown that the actions of partitions and shear walls can significantly change the loads carried by individual members. The implications of this earthquake resistant design are discussed.