SSI Analysis Of A Massive Concrete Structure Based On A Novel Convolution/Deconvolution Technique
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
SSI Analysis Of A Massive Concrete Structure Based On A Novel Convolution/Deconvolution Technique
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| Creator |
Rajasankar, J.
Nagesh R. Iyer Yerraya Swamy, B. Gopalakrishnan, N. Chellapandi, P. |
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| Subject |
Seismic soil-structure interaction
Finite element modelling Transmitting boundaries Convolution/deconvolution Transient dynamic response analysis Deconvolution technique |
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| Description |
Investigations conducted based on seismic soil-structure interaction analysis of a massive concrete structure supported on a raft foundation are presented in this paper. Linear transient dynamic analysis is carried out using finite element method and imposing transmitting boundary conditions at far field of layered elastic half-space. Analysis is conducted in two phases, namely: (i) free-field analysis of the layered half-space and (ii) seismic analysis of the structure by including soilstructure interaction effects. In the first phase, a simple and novel technique is used to establish free-field excitation at a depth in the half-space. In the second phase, seismic soil-structure interaction analysis of the structure is carried out for the free-field excitation determined in phase-I. Stress resultants experienced by the raft and the stresses at the interface between the rock and raft are evaluated. Critical examination of the results indicates tensile stresses of considerable magnitude at few locations in the rock-raft interface. Typical stress responses at the interface are presented and discussed in the paper.
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| Date |
2009
2009 2007 |
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| Type |
Article
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| Identifier |
Sadhana, Vol.32, Part 3, June 2007, p.215–234.
http://hdl.handle.net/123456789/24 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
Indian Academy of Science
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