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Corresponding Author

缪易辰，男，博士，讲师.E-mail：[email protected]

Abstract

To clarify the mechanical characteristics and load transfer paths of high-rise pile cap foundations, this paper established a large-scale numerical model of a four-pile high-rise pile cap and used numerical simulation methods to analyze the stress diffusion characteristics and internal force transfer mechanism of high-rise pile caps under different distance-to-thickness ratios (ω/h0, where ω is the horizontal distance from the column edge to the pile center, and h0 is the effective height of the pile cap ). The results indicate the following. ① Reducing the distance-to-thickness ratio significantly alters the stress distribution pattern of the pile cap, making it transition from a bending-dominated to a compression-dominated state;② Under vertical loads and self-weight, the peak axial force in the pile foundation of the high-rise pile cap occurs near the ground surface;③ Under the combined effects of variations in load transfer paths and self-weight of the pile cap, the bending moment of the pile bodies at the free surface initially increases and then decreases as the distance-to-thickness ratio decreases. These findings provide a theoretical basis for optimizing the design of high-rise pile cap foundations.

Publication Date

10-29-2026

DOI

10.14048/j.issn.1671-2579.2026.05.016

First Page

156

Last Page

164

Submission Date

October 2026

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