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Bearing capacity prediction of SPRC coupling beams with small span-to-height ratio based on machine learning method
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Jianbo TIAN1, Wenjing ZHOU1, Huangjian CHEN2, Yong ZHAO1, Qin ZHAO1, Daguan HUANG1, Jingshuai YAN1
Earthquake Engineering and Engineering Dynamics | 2025, 45(1) : 85 - 94
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Earthquake Engineering and Engineering Dynamics | 2025, 45(1): 85-94
Bearing capacity prediction of SPRC coupling beams with small span-to-height ratio based on machine learning method
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Jianbo TIAN1, Wenjing ZHOU1, Huangjian CHEN2, Yong ZHAO1, Qin ZHAO1, Daguan HUANG1, Jingshuai YAN1
Affiliations
  • 1.School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
  • 2.China Construction First Group Corporation Limited, Beijing 100161, China
Published: 2025-02-28 doi: 10.13197/j.eeed.2025.0109
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In order to predict the bearing capacity of steel plate-concrete reinforced composite (SPRC) coupling beams more conveniently. In this paper, it is of great significance to study the bearing capacity prediction model of SPRC coupling beams by machine learning (ML) method. Firstly, the SPRC coupling beam database is established by collecting the existing experimental data. On this basis, six ML algorithms, including extreme learning machine (ELM) algorithm, back propagation neural network (BPNN) algorithm, support vector machine (SVM) algorithm, K-nearest neighbor (KNN) algorithm, random forest (RF) algorithm and extreme gradient boosting (XGBoost) algorithm were used for data regression training. Through the comparative analysis of model performance indicators, it is found that the prediction model based on XGBoost algorithm has the best robustness and generalization ability. Compared with the softened strut-and-tie model (SSTM), it has higher calculation accuracy and stability. A high-precision SPRC coupling beam bearing capacity prediction model based on ML method is proposed. In addition, the sensitivity analysis of the parameters affecting the bearing capacity of SPRC coupling beams is also carried out. The results show that the influence degree of each characteristic parameter on the bearing capacity of SPRC coupling beams is in descending order as follows: steel plate ratio (ρp), coupling beam section height (h), coupling beam section width (b), span-depth ratio (ln/h), stirrup yield strength (fvy), longitudinal reinforcement ratio (ρs), longitudinal reinforcement yield strength (fsy), stirrup ratio (ρt), steel plate yield strength (fpy), concrete compressive strength (fcu).

small span-depth ratio  /  SPRC coupling beam  /  machine learning  /  robustness  /  bearing capacity prediction
Jianbo TIAN, Wenjing ZHOU, Huangjian CHEN, Yong ZHAO, Qin ZHAO, Daguan HUANG, Jingshuai YAN. Bearing capacity prediction of SPRC coupling beams with small span-to-height ratio based on machine learning method[J]. Earthquake Engineering and Engineering Dynamics, 2025 , 45 (1) : 85 -94 . DOI: 10.13197/j.eeed.2025.0109
Year 2025 volume 45 Issue 1
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Article Info
doi: 10.13197/j.eeed.2025.0109
  • Receive Date:2024-05-28
  • Online Date:2026-03-20
  • Published:2025-02-28
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  • Received:2024-05-28
  • Revised:2024-06-27
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Affiliations
    1.School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, China
    2.China Construction First Group Corporation Limited, Beijing 100161, China
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表12种不同金属材料的力学参数

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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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