The material deformation mechanisms governing concrete strength in building structures exhibit inherent complexity. Due to the physical characteristics of concrete composites, frictional parameters demonstrate interdependent relationships during material-structure interactions rather than maintaining complete independence. The interfacial transition zone between materials and substrate structures undergoes constrained deformation under parent material confinement, inducing modified physical properties in near-interface regions. This phenomenon reveals material heterogeneity through differentiated responses to intrinsic and extrinsic factors, where the relative dominance of these influences ultimately dictates structural performance metrics.

The aim of the work is to construct a microscopic model to investigate the frictional properties of interlayer interfacial concrete in building structures under cyclic coupling effect. The main particular emphasis focuses on elucidating the mechanical behavior of materials subjected to cyclic loading conditions.

This investigation employs an enhanced Alternating Direction Method of Multipliers (ADMM) algorithm to systematically extract characteristic features and correlation attributes from diverse material specimens. Through the implementation of penalty factor constraints and uncertainty quantification protocols, the methodology effectively reduces prerequisite assumptions while distinguishing variable functional relationships. Microstructural modeling analyses integrated with experimental validation confirm the technical feasibility and innovation superiority of the proposed approach. Comparative evaluations under cyclic coupling conditions reveal critical advancements in three dimensions: resistance potential under load cycling, frictional behavior under varying loading rate responses, and multi-parametric physical property enhancements. The developed technique has demonstrated superior concrete performance enhancement compared to conventional strength improvement methods. It also effectively restrains the expansion of stress damage and strengthens the stability and safety of the foundation structure under the condition of cyclic coupling.