Effect of Soil-Structure Interaction on Seismic Performance of RC Framed Building with Viscous Wall Dampers

2021 ◽  
pp. 235-246
Author(s):  
A. Veerapandi ◽  
J. Visuvasam
Keyword(s):  
Seismic Performance ◽  
Soil Structure ◽  
Soil Structure Interaction ◽  
Structure Interaction

scholarly journals Effect of Soil-Structure Interaction on the Seismic Response of Existing Low and Mid-Rise RC Buildings

2020 ◽  
Vol 10 (23) ◽  
pp. 8357
Author(s):  
Ibrahim Oz ◽  
Sevket Murat Senel ◽  
Mehmet Palanci ◽  
Ali Kalkan
Keyword(s):  
Seismic Response ◽  
Seismic Performance ◽  
Soil Structure ◽  
Soft Soil ◽  
Soil Structure Interaction ◽  
Soil Conditions ◽  
Existing Buildings ◽  
Structure Interaction ◽  
Fixed Base ◽  
New Buildings

Reconnaissance studies performed after destructive earthquakes have shown that seismic performance of existing buildings, especially constructed on weak soils, is significantly low. This situation implies the negative effects of soil-structure interaction on the seismic performance of buildings. In order to investigate these effects, 40 existing buildings from Turkey were selected and nonlinear models were constructed by considering fixed-base and stiff, moderate and soft soil conditions. Buildings designed before and after Turkish Earthquake code of 1998 were grouped as old and new buildings, respectively. Different soil conditions classified according to shear wave velocities were reflected by using substructure method. Inelastic deformation demands were obtained by using nonlinear time history analysis and 20 real acceleration records selected from major earthquakes were used. The results have shown that soil-structure interaction, especially in soft soil cases, significantly affects the seismic response of old buildings. The most significant increase in drift demands occurred in first stories and the results corresponding to fixed-base, stiff and moderate cases are closer to each other with respect to soft soil cases. Distribution of results has indicated that effect of soil-structure interaction on the seismic performance of new buildings is limited with respect to old buildings.

scholarly journals Soil-structure interaction effects on the seismic performance of frame structures

2019 ◽  
Vol 18 (2) ◽  
pp. 349-363
Author(s):  
Dhahbia Guerdouh ◽  
◽  
Salah Khalfallah ◽  
Keyword(s):  
Seismic Performance ◽  
Soil Structure ◽  
Interaction Effects ◽  
Soil Structure Interaction ◽  
Frame Structures ◽  
Structure Interaction

SIGNIFICANCE OF SOIL-STRUCTURE INTERACTION IN SEISMIC RESPONSE OF BUILDINGS

2019 ◽  
Vol 1 (Special Issue on First SACEE'19) ◽  
pp. 43-54 ◽  
Author(s):  
Naveed Anwar ◽  
Abinayaa Uthayakumar ◽  
Fawad Ahmed Najam
Keyword(s):  
Seismic Performance ◽  
Soil Structure ◽  
Seismic Analysis ◽  
Soil Structure Interaction ◽  
Approximate Methods ◽  
Practical Applications ◽  
Structure Interaction ◽  
Explicit Consideration ◽  
Seismic Response Of Buildings ◽  
Modelling Approach

In current design office practice, a commonly used modelling assumption is that the base of a building structure can be idealised with fixed support conditions, thereby neglecting any effects from soil-structure interaction (SSI). Various recent studies, however, have shown that the explicit consideration of SSI effects in seismic analysis of buildings structures may significantly affect the predicted seismic demands and resulting structural performance. This study addresses some key issues and practices in the area of SSI and its effects on the dynamic response and seismic performance of buildings. It is also intended to demonstrate the significance of considering SSI effects in structural modelling and analysis while providing key insights into practical applications in real projects. Using a forty storey example building, the effect of considering SSI on the predicted seismic performance is demonstrated. For the purpose of comparison, five detailed computer models (one without considering any SSI effects, two models with SSI modelled using indirect approach, and two models with SSI modelled using direct approach) of the example building were constructed and subjected to various input ground motions. It is observed that depending upon the modelling approach used, the consideration of SSI effects may affect the predicted seismic performance in varying degrees. Moreover, the direct modelling approach presented in this study may provide improved results compared to various approximate methods.

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