Abstract
Soil condition is an important research area in earthquake engineering. In this work we evaluated the impact of soil-structure interaction (SSI) and U-shaped steel damper on the isolated response of the building base. Different soils for a seismic performance of multistory buildings are systematically compared and discussed. The soil’s physical state is divided into; hard soil, medium soil, and soft soil. It was compared with the U-shaped steel damper and there is noticeable difference between them. This study concludes that the use of steel damper shaped and SSI has been effective in minimizing structural response. It was observed that interaction of the soil structure provides some flexibility to the structure by increasing the structure’s displacements. Modeling base isolation along with consideration of soil structure interaction therefore leads to better structural response prediction.
Highlights
The soil condition is an important research field; the soil's physical state and dynamic properties, which can be divided into hard soil, medium soil, soft soil, as per standard Indian code
The effect with soil structure interaction (SSI) on the structural response has been explained by the analysis of results which were obtained for two models: model 1 was mentioned by an isolated structure with SSI and the second model was represented by an isolated base structure without SSI
The aim of the analysis is to examine the seismic performance under 4 real ground motions of an isolated base building; the structural responses are as follows: 1. Displacements, accelerations were studied
Summary
The soil condition is an important research field; the soil's physical state and dynamic properties, which can be divided into hard soil, medium soil, soft soil, as per standard Indian code. U-shaped steel damper and another structure with SSI supported the base isolated structure.The dampers greatly reduced factors of damage such as drift and displacement. Tsai and Hsueh investigated the locations, higher models and damping of soil structure interaction (SSI) in base isolated system which is based in multiple layers of half-space sand [6]. It is the same in Spyrakos' research where he investigated The effects of soil structure interaction (SSI) on the response of multi-storey base-isolated buildings constructed through an elastic soil layer overhanging a rigid foundation rock and subject to harmonic ground movements [7]
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