 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
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| In English (Mech. Solids): | | 5360 |
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| << Previous article | Volume 60, Issue 7 / 2025 | Next article >> |
| Shailja Gupta, Vishwas A. Sawant, and P.K. Gupta, "Structural Performance of CPRF Systems under Pseudo-Static Loading Conditions," Mech. Solids. 60 (7), 6263-6284 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
6263-6284 |
| DOI |
10.1134/S002565442560504X |
| Title |
Structural Performance of CPRF Systems under Pseudo-Static Loading Conditions |
| Author(s) |
Shailja Gupta (Research Scholar, Civil Engineering Department, IIT Roorkee, Roorkee, Uttarakhand, 24667 India, sgupta9@ce.iitr.ac.in)
Vishwas A. Sawant (Professor, Civil Engineering Department, IIT Roorkee, Roorkee, Uttarakhand, 24667 India, vishwas.sawant@ce.iitr.ac.in)
P.K. Gupta (Professor, Civil Engineering Department, IIT Roorkee, Roorkee, Uttarakhand, 24667 India, pramod.gupta@ce.iitr.ac.in) |
| Abstract |
Piled-raft foundations have become a reliable alternative to traditional group pile systems
for high-rise structures, offering enhanced control over total and differential settlements, which contributes to improved structural stability and longevity. However, seismic design practices often oversimplify these systems by neglecting the contribution of piles, treating the foundation as a raft alone.
This study explores the seismic behavior of Combined Piled-Raft Foundations (CPRF) under
pseudo-static loading, focusing on the CPRF coefficient as a measure of load-sharing efficiency.
A detailed parametric analysis was conducted to assess the influence of yield criteria, pile length, raft
thickness, internal friction angle, and soil modulus on system response. The results reveal that piles
carry the majority of the applied load, while pile length has minimal effect on both the CPRF coefficient and lateral displacement. Although raft thickness does not significantly alter the CPRF coefficient, increasing it helps reduce lateral displacement. Furthermore, higher internal friction angles and
soil moduli lead to reduced lateral displacement. Notably, the CPRF coefficient for piles negatively
correlates with these soil properties, whereas the coefficient for the raft shows a positive correlation.
These insights are critical for refining seismic design strategies and optimizing the performance of
piled-raft foundation systems in earthquake-prone regions. |
| Keywords |
Pile raft, Hardening soil, soil modulus, CPRF coefficient, lateral displacement |
| Received |
16 September 2025 | Revised |
29 October 2025 | Accepted |
31 October 2025 |
| Link to Fulltext |
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