Evaluation of dynamic response of connected and non-connected piled raft systems using shaking table tests

Azizkandi, Alireza Saeedi; Aghamolaei, Milad; Hasanaklou, Sajjad Heidari

doi:10.1016/j.soildyn.2020.106366

Cited by 18 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fioravante and Giretti [19] used a series of centrifuge model tests to investigate the load transfer mechanisms of PRF and CLPRS and found that PRF acted as a settlement reducer while CLPRS played the role of soil reinforcement. Based on the shaking table tests, Azizkandi et al [20,21] found that PRF and CLPRS efectively reduced the ground settlements. It was also concluded that CLPRS decreased the maximum bending moment of piles by 20%-60%, based on input motion amplitudes and cushion layer material.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Pile-Raft Systems with Various Forms of Connection under Cyclic Condition

Du,

Lei,

Ren

et al. 2023

Shock and Vibration

View full text Add to dashboard Cite

This study aimed to examine the aseismic performance of the pile-raft systems with various connection forms. The related shaking table test and numerical simulation were performed for in-depth investigation. The acceleration response spectra on the top of the soil layer and raft were obtained and plotted for contrastive analysis based on the model test at a reduced scale of 1 : 30 and finite element numerical simulation. Accordingly, the working mechanisms of the pile-raft systems in conventional connections with the embedment of the compressible blocks and cushion layers under cyclic loading were explored. The results showed that the embedment of the cushion layer on the pile top could most significantly mobilize the potential of the foundation soil, effectively reduce the bending moment peak of the pile, and reduce the acceleration amplification effect on the top of the soil layer and raft. The embedment of the compressible block on the pile top most markedly reduced the bending moment peak of the pile and effectively mobilized the potential of the foundation soil, which was most favorable for lowering the amplification effect of acceleration on the top of the soil layer and raft.

show abstract

Section: Introductionmentioning

confidence: 99%