Abstract
Barrette is a vital solution to minimize soil displacement problems of massive structures due to its high axial and lateral load capacities. In this paper, a numerical technique for analyzing laterally loaded single barrette previously presented by the authors is extended to analyze barrette groups. The flexibility coefficient is used to determine the soil deformation based on Mindlin’s solution considering the full interaction between barrettes and surrounding soil. Also, it takes into consideration the group interaction of every single barrette on the group of barrettes. A composed coefficient technique is used for condensing the soil stiffness along the barrette surface to be one-dimension along the barrette vertical axis having variable displacements along the barrette height. On the other hand, the barrette in the vertical direction is discretized to one-dimensional finite elements. The soil stiffness is added to the barrette stiffness generating the full stiffness matrix of barrette groups to be solved. As a result, the number of equations is reduced. The present hybrid technique is verified by comparing results from analyzing laterally loaded barrettes multi-layered soil with those obtained analytically in the available literature. The proposed hybrid technique is implemented in well-known software ELPLA. Furthermore, a parametric study is carried out to investigate the behavior of laterally loaded barrette/barrette groups. From this study, for the barrette/barrette group subjected to lateral load with a barrette height/width ratio more than 30, its height does not influence the barrette response.
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El-Gendy, M.M., Ibrahim, H.M.H. & El-Arabi, I.A. The behavior of laterally loaded barrette groups using hybrid flexibility coefficient and finite element technique. Innov. Infrastruct. Solut. 6, 170 (2021). https://doi.org/10.1007/s41062-021-00535-8
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DOI: https://doi.org/10.1007/s41062-021-00535-8