Considering the Soil Effects on Design Process of Performance-Based Plastic Design for Reinforced Concrete Structures

Document Type: Research Papers

Authors

Department of Civil Engineering, Bu-Ali Sina University, fahmideh st, 65178-38695 Hamedan, Iran

Abstract

In this research, Performance-Based Plastic Design (PBPD) method has been modified according to the proposed method for considering Soil–Structure Interaction (SSI) effects. In the proposed modified method, based on the existing relationships and in order to maintain the simplicity of the PBPD design method, two important parameters have been modified in the PBPD design method. These two parameters include the modification of the vibration period of the structure due to the effect of SSI and the lateral target displacement modification, which is a key parameter in the evaluation of the structural performance. Efforts have been made to refine the modifications to maintain the simplicity and robustness of the PBPD equations. Finally, design base shear force of the PBPD method has been corrected due to the SSI effect regarding the modified relationships. By making the modifications, in order to better understand this method, structures with a number of different floors, including the 4, 8, 12, and 20 spatial space moment frames, are designed and compared with the results of designing the method without the effect of SSI and design method based on the capacity.

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