Civil Engineering and Architecture Vol. 8(6), pp. 1313 - 1324
DOI: 10.13189/cea.2020.080615
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Shake Table Studies on the Dynamic Response of Pile Supported Framed Structure in Soft Soil

Subramanya K G ^1,*, L Govindaraju ², R Ramesh Babu ^3
1 Department of Civil Engineering, Government Sri Krishnarajendra Silver Jubilee Technological Institute (GSKSJTI), Bengaluru, India
² Department of Civil Engineering, University Visvesvaraya College of Engineering (UVCE), Bengaluru, India
³ Technical Consultant, Central Power Research Institute, Bengaluru, India

ABSTRACT

Previous earthquakes have shown that structural damage depends not only on the behavior of the structure, but also on the foundation and subsoil below. The behaviour of pile foundations under seismic load is a very important factor affecting the performance of the structure. The primary aim of the research is to study the effect of the dynamic soil-pile-structure interaction on the response of a five-storey scaled-down model structure by conducting laboratory Shake table tests. The response of the model structure was investigated for both fixed base condition and supported by model piles embedded in soft clay. A rigid soil container with absorbing boundaries was used in the study along with a synthetic clay mix. The structural system was subjected to harmonic loading at different frequencies. From the experimental measurements, it can be observed that the soil pile structure system amplifies the lateral deflections and the storey drift of the superstructure in comparison with the fixed base structure. Building frames with varying height and lateral dimension were analysed numerically for both fixed and SSI with pile foundation in order to assess the effect of building configuration for the seismic response. The interaction of the soil pile structure system increases the lateral response of the structure. As the height of the structure increases, the amplification of response in SSI condition also increases, which can change the performance level of the structure, and hence Soil Pile Structure Interaction plays a significant role in the aseismic design of the structure.

KEYWORDS
Soil Pile Structure Interaction, Shake Table Tests, Scaled Model Tests, Seismic Response

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Subramanya K G , L Govindaraju , R Ramesh Babu , "Shake Table Studies on the Dynamic Response of Pile Supported Framed Structure in Soft Soil," Civil Engineering and Architecture, Vol. 8, No. 6, pp. 1313 - 1324, 2020. DOI: 10.13189/cea.2020.080615.

(b). APA Format:
Subramanya K G , L Govindaraju , R Ramesh Babu (2020). Shake Table Studies on the Dynamic Response of Pile Supported Framed Structure in Soft Soil. Civil Engineering and Architecture, 8(6), 1313 - 1324. DOI: 10.13189/cea.2020.080615.