Maximum displacement response analysis of RC slabs under blast load based on machine learning method(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2026年01期
- Page:
- 85-94
- Research Field:
- 智能检测与建造技术专栏
- Publishing date:
Info
- Title:
- Maximum displacement response analysis of RC slabs under blast load based on machine learning method
- Author(s):
- YU Xiaohui; CHEN Yuchen; DAI Kuangyu
- 1. Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin University of Technology, Guilin 541004, Guangxi, China; 2. School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, Henan, China
- Keywords:
- RC slab; blast load; maximum displacement response; interpretable machine learning; PSO-XGBoost method
- PACS:
- -
- DOI:
- -
- Abstract:
- A displacement response database for 491 types of reinforced concrete (RC) slabs under blast loads was established based on the collection of existing experimental and numerical simulation results. Using 10 influencing factors including the length, width, thickness, compressive strength of concrete, yield strength of steel bars, reinforcement ratio, boundary conditions, type of slab, blast distance, and blast equivalent as input parameters, a total of 9 machine learning methods from 3 categories were used to establish prediction models for the maximum displacement response of RC slabs under blast loads. Using interpretable machine learning methods, the established machine learning model was explained through feature importance analysis, single factor partial dependency analysis, and interactive dependency analysis, and the importance of the influencing factors on the maximum displacement response of RC slabs under blast loads was analyzed. The results show that the prediction model based on particle swarm optimizationextreme gradient boosting (PSO XGBoost) has the highest accuracy, and the accuracy is higher than that of the equivalent single degree of freedom model recommended by the standard. Among the considered influencing factors, blast equivalent, blast distance, slab thickness and reinforcement ratio have the most significant impact on the maximum displacement response of RC slabs under blast loads. The blast resistant design of RC slabs should ensure a minimum thickness of 150 mm, a minimum reinforcement ratio of 1.5%, and a concrete strength of 50 MPa.
Last Update: 2026-01-20