An improved Penzien model is proposed in this paper as a simplified of soil–pile–structure interaction. The dynamic nonlinearity soil under earthquake excitation simulated by ANSYS free-field and added to the original model. uses finite element software 2021 simulate soil. then used calculation numerical substructure. A substructure pseudo-dynamic test based on carried out. realization verifies...

This paper presents a computationally efficient model for vibratory pile installation. A semi-analytical finite element (SAFE) thin cylindrical shells is derived to represent the pile. The linear dynamic response of soil medium described by means Green’s functions via Thin-Layer Method (TLM) coupled with Perfectly Matched Layers (PMLs) account underlying elastic half-space. Furthermore, non-lin...

to increase the safety of structures against strong ground motions and their life due to environmental issues on the earth and saving in terms of materials, it is necessary to expand and upgrade seismic resistant systems. however, more cost-effective systems which have sufficient influence on the seismic performance of structures and also more compatibility with the regional conditions, will be...

in soft soil areas, equal-length piles are often adopted in the retaining system. a decrease in the bending moment value borne by the retaining structure along the pile depth (below the excavation bottom), leads to an inadequate use of the pile bending capacity near the pile bottom. this paper presents retaining systems with long and short pile combinations, in which the long piles ensure integ...

Comprehensive geotechnical modelling of the behaviour of piles generally encounters setbacks: in preparing model bed simulating field conditions, of specific and uniform shear strength, and reproduction for repetitions. Due to such limitations in traditional practices, information on the complex mechanism of shaft-base resistance interaction is not adequately known. Other outcomes are: varied r...

Society's transition to low-carbon energy sources has resulted in significant expansion offshore wind technology. Most turbines (OWTs) are founded on large-diameter steel tubular piles driven into the seabed, termed monopiles. OWTs subjected large numbers of dynamic and cyclic environmental loads during their lifetime. To avoid fatigue or resonance issues, accurate characterisation soil-structu...

The reliability of high-rise buildings’ rigid-pile composite foundations primarily relies on the load test results single-pile foundations. Field tests were conducted for a building in loess area China, conformed to design requirements. Nevertheless, buildings experienced significant settlement after construction, which was quite different from results. Investigating bearing disparities between...

Retrofitting works are immensely essential for deteriorated and damaged structures in Engineering and Medical fields, in order to keep, or return to, the originality for safe guarding the structures and consumers. In this paper, different types of methods of retrofitting review notes are given based on the experimental, numerical and analytical methods results on strengthening the Reinforced ce...

In this paper, an analytical solution to the problem of interaction a pile-slab foundation with 2-layer elastic soil basement is proposed. A new method was proposed take into account nonlinearity soils in formulation. This consists limiting bearing capacity pile along lateral surface by strength adjacent and redistributing applied load toe. article, comparative analysis formulation numerical si...

This study presents an analytical framework to estimate the change in ultimate bearing capacity of energy piles unsaturated fine-grained soils under drained mechanical loading conditions after heating. The was developed by extending conventional methods for temperature-dependent conditions, where thermally induced changes characteristics soil and soil–pile interface are considered. Specifically...