Seismic damage assessment of a historical masonry minaret considering soil-structure interaction

Abstract

Historical structures should be carefully preserved and transferred to the next generations. Therefore, their seismic performances should be investigated in detail. In the finite element method, many parameters affect the seismic behaviour and damage distribution in the structures. One of the most significant parameters is the Soil-Structure Interaction effect. In finite element analyses, the soil medium is generally neglected, and the structures' base is restrained by fixed supports. In this study, seismic response of a historical masonry minaret is investigated by considering the Soil-Structure Interaction and Operational Modal Analysis methods. To determine the effect of Soil-Structure Interaction on structural behaviour, the fixed supports, hard and soft soil mediums at the base of the structure are modelled. The material and failure behaviours are defined with the Concrete Damage Plasticity model. Displacements, principal stresses, damage rates, and damage distribution of models are obtained with nonlinear time history analyses. According to the results, the interstory drift increases due to the decrease in the stiffness of the soil media. In addition, the fixed supports model was damaged more tensile stress damage than the other models. The least occurred in the soft soil model. It is concluded that the Soil-Structure Interaction effect significantly affects structural behaviour, especially the damage rate and distribution.

Numerical Simulation of Severe Damage to a Historical Masonry Building by Soil Settlement

“…where εc and εt are total strain in compressive and tension conditions, The literature includes limited studies featuring use of a direct soil-structure interaction approach at the damage simulation due to soil settlement on historical structures [23]. There are some studies in the literature that focus on structural behavior of masonry structures taking into account the soil-structure interaction [24][25][26][27][28][29][30][31][32][33][34][35]. On the other hand, there are also studies that take into account the seismic effect and differential settlement effects for historical structures [36][37][38][39][40].…”

“…It should be stated that, wherever possible, the soil properties were gradually increased from weak soil to hard soil to eliminate the settlement effect. The material properties of the soil domains, which are available in the literature, are also shown in Figure 12 [41][42][43]. As can be seen, the elasticity modulus values changed between 1.14 × 10 9 -5.68 × 10 9 N/m 2 while the density values changed between 1667-2064 kg/m 3 .…”

Evaluation of the Seismic Behavior of the Historic Clandras Bridge

“…They concluded that the developed formula for the frequency calculation of stone arch bridges could be used to obtain a reference. Altıok and Demir [13] Altiok and Demir, the seismic behavior of the historical Lala Mehmet Pasha minaret was investigated by considering the Soil-Structure Interaction (SII). The initial finite element (FE) model was updated according to the data obtained from the operational modal analysis (OMA) method.…”