The Effect of Earthquake Damages Created by Shaking Table Tests on Dynamic Characteristics of Masonry Structures

The 4th International Conference on Advanced Technologies for Humanity (ICATH'2022), Marrakush, Fas, 11 - 12 Kasım 2022, ss.1-11

Masonry structures are buildings formed by combining brittle

materials such as brick, stone, pumice, and aerated concrete with mortar. The

masonry structures, which do not show the desired ductile behavior against

dynamic effects, show a brittle behavior. This situation causes heavy damage to

masonry structures in the event of exceeding their bearing capacity in the face of

natural disasters such as earthquakes. Knowing the dynamic behavior of masonry

structures will help to take precaution to minimize the loss of life and property,

since a significant part of people live in masonry buildings. The natural

frequency, mode shape and damping ratios of the structures are determined by

analytical and experimental methods, depending on the dynamic properties of the

structures under dynamic loads. In this study, the changes in the dynamic

characteristics of a ½ scale single-span and single-story masonry model built with

hollow brick for different damage conditions were investigated. In order to obtain

different damage cases, the model is tested on a shaking table with gradually

different earthquake data. In order to observe the earthquake damages

experimentally, the modal parameters of the masonry model were determined by

ambient vibration tests for undamaged and damaged conditions.

Also, A nonlinear analytical one-story masonry model is developed using finite

element ABAQUS software with macro modelling approach to study the

behavior of Masonry models subjected to different earthquakes. Six different test

cases using same model are investigated analytically.