Lateral Impact Test and Inertial Force of Concrete-Filled Steel Tube Column

Prediction and Interpretation of Residual Bearing Capacity of Cfst Columns under Impact Loads Based Interpretable Stacking Fusion Modeling

“…This study aims to rapidly predict the residual bearing capacity of CFST columns after impact loads and develop corresponding models. To establish the ML model, we constructed a CFST column database containing 221 data points, based on previous studies on the impact resistance of CFST columns [12,13,27,28]. It is important to note that the data used in this database were sourced from the aforementioned four references.…”

“…Appropriate input features need to be selected to establish a predictive model for the remaining load-bearing capacity of CFST columns after impact loading. Previous studies have shown that the remaining load-bearing capacity of damaged CFST columns is mainly affected by factors such as cross-sectional form, geometric parameters, material properties, boundary constraints, impact energy, and impact location [12,13,27,28]. Experimental research results indicate that the remaining load-bearing capacity of CFST columns under lateral impact loads is negatively correlated with impact energy, and positively correlated with core concrete strength and impact location, with the impact location having the most significant influence.…”

“…The results indicated that the steel tube thickness and core concrete strength were the main factors affecting the residual bearing capacity of CFST columns. Chen et al [12] experimentally studied the residual bearing capacity of 45 circular CFST columns under impact loads. They found that impact energy, core concrete strength, and impact location had significant influences on the residual bearing capacity.…”