The pile beam nodes of the high-piled wharf serve as key parts connecting the foundation piles and the upper beam slab structure,playing a role in transmitting loads and maintaining the overall stability of the structure.Evaluating their damaged state is also an important part of the safety assessment of the high-piled wharf structure.This article is based on an actual monitoring engineering and establishes a three-dimensional finite element model of a truss.The model is calibrated by combining response surface methodology with measured data.On this basis,the elastic modulus reduction method is used to simulate different degrees of damage to pile beam nodes,and the specific impact of node damage on horizontal load transmission is analyzed.Load retention rate is introduced as a quantitative indicator to provide a basis for the quantitative evaluation of node damage degree.Finally,a systematic,convenient,and quantifiable node damage assessment method is proposed,providing theoretical basis and technical support for damage detection and safety assessment of high-piled wharfs.